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| author | Michal Simek <monstr@monstr.eu> | 2007-05-08 00:32:35 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2007-05-08 00:32:35 +0200 |
| commit | 3c4bd60de15d79ddfc0cf3170a55847b2025d93f (patch) | |
| tree | 891b84b58f13a5f45536a243585b9d94c253a410 /cpu | |
| parent | fb05f6da35ea1c15c553abe6f23f656bf18dc5db (diff) | |
| parent | ac4cd59d59c9bf3f89cb7a344abf8184d678f562 (diff) | |
| download | u-boot-imx-3c4bd60de15d79ddfc0cf3170a55847b2025d93f.zip u-boot-imx-3c4bd60de15d79ddfc0cf3170a55847b2025d93f.tar.gz u-boot-imx-3c4bd60de15d79ddfc0cf3170a55847b2025d93f.tar.bz2 | |
Merge git://www.denx.de/git/u-boot
Conflicts:
include/asm-microblaze/microblaze_intc.h
include/linux/stat.h
Diffstat (limited to 'cpu')
115 files changed, 10472 insertions, 2917 deletions
diff --git a/cpu/74xx_7xx/cpu.c b/cpu/74xx_7xx/cpu.c index f4e5fc5..9c8998b 100644 --- a/cpu/74xx_7xx/cpu.c +++ b/cpu/74xx_7xx/cpu.c @@ -44,6 +44,10 @@ #include <74xx_7xx.h> #include <asm/cache.h> +#if defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#endif + #ifdef CONFIG_AMIGAONEG3SE #include "../board/MAI/AmigaOneG3SE/via686.h" #include "../board/MAI/AmigaOneG3SE/memio.h" @@ -101,6 +105,10 @@ get_cpu_type(void) type = CPU_7457; break; + case 0x8003: + type = CPU_7447A; + break; + case 0x8004: type = CPU_7448; break; @@ -156,6 +164,10 @@ int checkcpu (void) str = "MPC7410"; break; + case CPU_7447A: + str = "MPC7447A"; + break; + case CPU_7448: str = "MPC7448"; break; @@ -264,20 +276,19 @@ do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) /* * For the 7400 the TB clock runs at 1/4 the cpu bus speed. */ -#ifdef CONFIG_AMIGAONEG3SE +#if defined(CONFIG_AMIGAONEG3SE) || defined(CFG_CONFIG_BUS_CLK) unsigned long get_tbclk(void) { return (gd->bus_clk / 4); } -#else /* ! CONFIG_AMIGAONEG3SE */ +#else /* ! CONFIG_AMIGAONEG3SE and !CFG_CONFIG_BUS_CLK*/ unsigned long get_tbclk (void) { return CFG_BUS_HZ / 4; } -#endif /* CONFIG_AMIGAONEG3SE */ +#endif /* CONFIG_AMIGAONEG3SE or CFG_CONFIG_BUS_CLK*/ /* ------------------------------------------------------------------------- */ - #if defined(CONFIG_WATCHDOG) #if !defined(CONFIG_PCIPPC2) && !defined(CONFIG_BAB7xx) void @@ -289,3 +300,30 @@ watchdog_reset(void) #endif /* CONFIG_WATCHDOG */ /* ------------------------------------------------------------------------- */ + +#ifdef CONFIG_OF_FLAT_TREE +void +ft_cpu_setup (void *blob, bd_t *bd) +{ + u32 *p; + ulong clock; + int len; + + clock = bd->bi_busfreq; + + p = ft_get_prop (blob, "/cpus/" OF_CPU "/bus-frequency", &len); + if (p != NULL) + *p = cpu_to_be32 (clock); + +#if defined(CONFIG_TSI108_ETH) + p = ft_get_prop (blob, "/" OF_TSI "/ethernet@6200/address", &len); + memcpy (p, bd->bi_enetaddr, 6); +#endif + +#if defined(CONFIG_HAS_ETH1) + p = ft_get_prop (blob, "/" OF_TSI "/ethernet@6600/address", &len); + memcpy (p, bd->bi_enet1addr, 6); +#endif +} +#endif +/* ------------------------------------------------------------------------- */ diff --git a/cpu/74xx_7xx/cpu_init.c b/cpu/74xx_7xx/cpu_init.c index e02a4cc..1dd1b2c 100644 --- a/cpu/74xx_7xx/cpu_init.c +++ b/cpu/74xx_7xx/cpu_init.c @@ -43,6 +43,7 @@ cpu_init_f (void) case CPU_7450: case CPU_7455: case CPU_7457: + case CPU_7447A: case CPU_7448: /* enable the timebase bit in HID0 */ set_hid0(get_hid0() | 0x4000000); diff --git a/cpu/74xx_7xx/speed.c b/cpu/74xx_7xx/speed.c index d1800ed..d8c40ce 100644 --- a/cpu/74xx_7xx/speed.c +++ b/cpu/74xx_7xx/speed.c @@ -31,6 +31,8 @@ DECLARE_GLOBAL_DATA_PTR; +extern unsigned long get_board_bus_clk (void); + static const int hid1_multipliers_x_10[] = { 25, /* 0000 - 2.5x */ 75, /* 0001 - 7.5x */ @@ -50,6 +52,42 @@ static const int hid1_multipliers_x_10[] = { 0 /* 1111 - off */ }; +/* PLL_CFG[0:4] table for cpu 7448/7447A/7455/7457 */ +static const int hid1_74xx_multipliers_x_10[] = { + 115, /* 00000 - 11.5x */ + 170, /* 00001 - 17x */ + 75, /* 00010 - 7.5x */ + 150, /* 00011 - 15x */ + 70, /* 00100 - 7x */ + 180, /* 00101 - 18x */ + 10, /* 00110 - bypass */ + 200, /* 00111 - 20x */ + 20, /* 01000 - 2x */ + 210, /* 01001 - 21x */ + 65, /* 01010 - 6.5x */ + 130, /* 01011 - 13x */ + 85, /* 01100 - 8.5x */ + 240, /* 01101 - 24x */ + 95, /* 01110 - 9.5x */ + 90, /* 01111 - 9x */ + 30, /* 10000 - 3x */ + 105, /* 10001 - 10.5x */ + 55, /* 10010 - 5.5x */ + 110, /* 10011 - 11x */ + 40, /* 10100 - 4x */ + 100, /* 10101 - 10x */ + 50, /* 10110 - 5x */ + 120, /* 10111 - 12x */ + 80, /* 11000 - 8x */ + 140, /* 11001 - 14x */ + 60, /* 11010 - 6x */ + 160, /* 11011 - 16x */ + 135, /* 11100 - 13.5x */ + 280, /* 11101 - 28x */ + 0, /* 11110 - off */ + 125 /* 11111 - 12.5x */ +}; + static const int hid1_fx_multipliers_x_10[] = { 00, /* 0000 - off */ 00, /* 0001 - off */ @@ -89,22 +127,30 @@ int get_clocks (void) { ulong clock = 0; +#ifdef CFG_BUS_CLK + gd->bus_clk = CFG_BUS_CLK; /* bus clock is a fixed frequency */ +#else + gd->bus_clk = get_board_bus_clk (); /* bus clock is configurable */ +#endif + /* calculate the clock frequency based upon the CPU type */ switch (get_cpu_type()) { + case CPU_7447A: case CPU_7448: case CPU_7455: case CPU_7457: /* - * It is assumed that the PLL_EXT line is zero. * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ - clock = (CFG_BUS_CLK / 10) * hid1_multipliers_x_10[(get_hid1 () >> 13) & 0xF]; + clock = (gd->bus_clk / 10) * + hid1_74xx_multipliers_x_10[(get_hid1 () >> 12) & 0x1F]; break; case CPU_750GX: case CPU_750FX: - clock = CFG_BUS_CLK * hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; + clock = gd->bus_clk * + hid1_fx_multipliers_x_10[get_hid1 () >> 27] / 10; break; case CPU_7450: @@ -121,7 +167,8 @@ int get_clocks (void) * Make sure division is done before multiplication to prevent 32-bit * arithmetic overflows which will cause a negative number */ - clock = (CFG_BUS_CLK / 10) * hid1_multipliers_x_10[get_hid1 () >> 28]; + clock = (gd->bus_clk / 10) * + hid1_multipliers_x_10[get_hid1 () >> 28]; break; case CPU_UNKNOWN: @@ -131,7 +178,6 @@ int get_clocks (void) } gd->cpu_clk = clock; - gd->bus_clk = CFG_BUS_CLK; return (0); } diff --git a/cpu/at32ap/Makefile b/cpu/at32ap/Makefile index f62ec8b..f69b1f3 100644 --- a/cpu/at32ap/Makefile +++ b/cpu/at32ap/Makefile @@ -30,7 +30,7 @@ LIB := $(obj)lib$(CPU).a START := start.o SOBJS := entry.o COBJS := cpu.o hsdramc.o exception.o cache.o -COBJS += interrupts.o device.o pm.o pio.o +COBJS += interrupts.o pio.o atmel_mci.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) START := $(addprefix $(obj),$(START)) diff --git a/cpu/at32ap/at32ap7000/Makefile b/cpu/at32ap/at32ap7000/Makefile index 2ed74d2..d276712 100644 --- a/cpu/at32ap/at32ap7000/Makefile +++ b/cpu/at32ap/at32ap7000/Makefile @@ -24,7 +24,7 @@ include $(TOPDIR)/config.mk LIB := $(obj)lib$(SOC).a -COBJS := hebi.o devices.o +COBJS := gpio.o SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) diff --git a/cpu/at32ap/at32ap7000/devices.c b/cpu/at32ap/at32ap7000/devices.c deleted file mode 100644 index 8b216e9..0000000 --- a/cpu/at32ap/at32ap7000/devices.c +++ /dev/null @@ -1,448 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <common.h> - -#include <asm/arch/memory-map.h> -#include <asm/arch/platform.h> - -#include "../sm.h" - -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - -const struct clock_domain chip_clock[] = { - [CLOCK_CPU] = { - .reg = SM_PM_CPU_MASK, - .id = CLOCK_CPU, - .bridge = NO_DEVICE, - }, - [CLOCK_HSB] = { - .reg = SM_PM_HSB_MASK, - .id = CLOCK_HSB, - .bridge = NO_DEVICE, - }, - [CLOCK_PBA] = { - .reg = SM_PM_PBA_MASK, - .id = CLOCK_PBA, - .bridge = DEVICE_PBA_BRIDGE, - }, - [CLOCK_PBB] = { - .reg = SM_PM_PBB_MASK, - .id = CLOCK_PBB, - .bridge = DEVICE_PBB_BRIDGE, - }, -}; - -static const struct resource hebi_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 0 }, - }, - }, { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 13 }, - }, - }, { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 14 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 27, DEVICE_PIOE, GPIO_FUNC_A, 0 }, - }, - }, -}; -static const struct resource pba_bridge_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 1 }, - } - }, { - .type = RESOURCE_CLOCK, - .u = { - /* HSB-HSB Bridge */ - .clock = { CLOCK_HSB, 4 }, - }, - }, -}; -static const struct resource pbb_bridge_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 2 }, - }, - }, -}; -static const struct resource hramc_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 3 }, - }, - }, -}; -static const struct resource pioa_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 10 }, - }, - }, -}; -static const struct resource piob_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 11 }, - }, - }, -}; -static const struct resource pioc_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 12 }, - }, - }, -}; -static const struct resource piod_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 13 }, - }, - }, -}; -static const struct resource pioe_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 14 }, - }, - }, -}; -static const struct resource sm_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 0 }, - }, - }, -}; -static const struct resource intc_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 1 }, - }, - }, -}; -static const struct resource hmatrix_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 2 }, - }, - }, -}; -#if defined(CFG_HPDC) -static const struct resource hpdc_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 16 }, - }, - }, -}; -#endif -#if defined(CFG_MACB0) -static const struct resource macb0_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 8 }, - }, - }, { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 6 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 19, DEVICE_PIOC, GPIO_FUNC_A, 0 }, - }, - }, -}; -#endif -#if defined(CFG_MACB1) -static const struct resource macb1_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 9 }, - }, - }, { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 7 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 12, DEVICE_PIOC, GPIO_FUNC_B, 19 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 14, DEVICE_PIOD, GPIO_FUNC_B, 2 }, - }, - }, -}; -#endif -#if defined(CFG_LCDC) -static const struct resource lcdc_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 7 }, - }, - }, -}; -#endif -#if defined(CFG_USART0) -static const struct resource usart0_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 3 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 2, DEVICE_PIOA, GPIO_FUNC_B, 8 }, - }, - }, -}; -#endif -#if defined(CFG_USART1) -static const struct resource usart1_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 4 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 2, DEVICE_PIOA, GPIO_FUNC_A, 17 }, - }, - }, -}; -#endif -#if defined(CFG_USART2) -static const struct resource usart2_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 5 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 2, DEVICE_PIOB, GPIO_FUNC_B, 26 }, - }, - }, -}; -#endif -#if defined(CFG_USART3) -static const struct resource usart3_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBA, 6 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 2, DEVICE_PIOB, GPIO_FUNC_B, 17 }, - }, - }, -}; -#endif -#if defined(CFG_MMCI) -static const struct resource mmci_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_PBB, 9 }, - }, - }, { - .type = RESOURCE_GPIO, - .u = { - .gpio = { 6, DEVICE_PIOA, GPIO_FUNC_A, 10 }, - }, - }, -}; -#endif -#if defined(CFG_DMAC) -static const struct resource dmac_resource[] = { - { - .type = RESOURCE_CLOCK, - .u = { - .clock = { CLOCK_HSB, 10 }, - }, - }, -}; -#endif - -const struct device chip_device[] = { - [DEVICE_HEBI] = { - .regs = (void *)HSMC_BASE, - .nr_resources = ARRAY_SIZE(hebi_resource), - .resource = hebi_resource, - }, - [DEVICE_PBA_BRIDGE] = { - .nr_resources = ARRAY_SIZE(pba_bridge_resource), - .resource = pba_bridge_resource, - }, - [DEVICE_PBB_BRIDGE] = { - .nr_resources = ARRAY_SIZE(pbb_bridge_resource), - .resource = pbb_bridge_resource, - }, - [DEVICE_HRAMC] = { - .nr_resources = ARRAY_SIZE(hramc_resource), - .resource = hramc_resource, - }, - [DEVICE_PIOA] = { - .regs = (void *)PIOA_BASE, - .nr_resources = ARRAY_SIZE(pioa_resource), - .resource = pioa_resource, - }, - [DEVICE_PIOB] = { - .regs = (void *)PIOB_BASE, - .nr_resources = ARRAY_SIZE(piob_resource), - .resource = piob_resource, - }, - [DEVICE_PIOC] = { - .regs = (void *)PIOC_BASE, - .nr_resources = ARRAY_SIZE(pioc_resource), - .resource = pioc_resource, - }, - [DEVICE_PIOD] = { - .regs = (void *)PIOD_BASE, - .nr_resources = ARRAY_SIZE(piod_resource), - .resource = piod_resource, - }, - [DEVICE_PIOE] = { - .regs = (void *)PIOE_BASE, - .nr_resources = ARRAY_SIZE(pioe_resource), - .resource = pioe_resource, - }, - [DEVICE_SM] = { - .regs = (void *)SM_BASE, - .nr_resources = ARRAY_SIZE(sm_resource), - .resource = sm_resource, - }, - [DEVICE_INTC] = { - .regs = (void *)INTC_BASE, - .nr_resources = ARRAY_SIZE(intc_resource), - .resource = intc_resource, - }, - [DEVICE_HMATRIX] = { - .regs = (void *)HMATRIX_BASE, - .nr_resources = ARRAY_SIZE(hmatrix_resource), - .resource = hmatrix_resource, - }, -#if defined(CFG_HPDC) - [DEVICE_HPDC] = { - .nr_resources = ARRAY_SIZE(hpdc_resource), - .resource = hpdc_resource, - }, -#endif -#if defined(CFG_MACB0) - [DEVICE_MACB0] = { - .regs = (void *)MACB0_BASE, - .nr_resources = ARRAY_SIZE(macb0_resource), - .resource = macb0_resource, - }, -#endif -#if defined(CFG_MACB1) - [DEVICE_MACB1] = { - .regs = (void *)MACB1_BASE, - .nr_resources = ARRAY_SIZE(macb1_resource), - .resource = macb1_resource, - }, -#endif -#if defined(CFG_LCDC) - [DEVICE_LCDC] = { - .nr_resources = ARRAY_SIZE(lcdc_resource), - .resource = lcdc_resource, - }, -#endif -#if defined(CFG_USART0) - [DEVICE_USART0] = { - .regs = (void *)USART0_BASE, - .nr_resources = ARRAY_SIZE(usart0_resource), - .resource = usart0_resource, - }, -#endif -#if defined(CFG_USART1) - [DEVICE_USART1] = { - .regs = (void *)USART1_BASE, - .nr_resources = ARRAY_SIZE(usart1_resource), - .resource = usart1_resource, - }, -#endif -#if defined(CFG_USART2) - [DEVICE_USART2] = { - .regs = (void *)USART2_BASE, - .nr_resources = ARRAY_SIZE(usart2_resource), - .resource = usart2_resource, - }, -#endif -#if defined(CFG_USART3) - [DEVICE_USART3] = { - .regs = (void *)USART3_BASE, - .nr_resources = ARRAY_SIZE(usart3_resource), - .resource = usart3_resource, - }, -#endif -#if defined(CFG_MMCI) - [DEVICE_MMCI] = { - .regs = (void *)MMCI_BASE, - .nr_resources = ARRAY_SIZE(mmci_resource), - .resource = mmci_resource, - }, -#endif -#if defined(CFG_DMAC) - [DEVICE_DMAC] = { - .regs = (void *)DMAC_BASE, - .nr_resources = ARRAY_SIZE(dmac_resource), - .resource = dmac_resource, - }, -#endif -}; diff --git a/cpu/at32ap/at32ap7000/gpio.c b/cpu/at32ap/at32ap7000/gpio.c new file mode 100644 index 0000000..52f5372 --- /dev/null +++ b/cpu/at32ap/at32ap7000/gpio.c @@ -0,0 +1,137 @@ +/* + * Copyright (C) 2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> + +#include <asm/arch/gpio.h> + +/* + * Lots of small functions here. We depend on --gc-sections getting + * rid of the ones we don't need. + */ +void gpio_enable_ebi(void) +{ +#ifdef CFG_HSDRAMC +#ifndef CFG_SDRAM_16BIT + gpio_select_periph_A(GPIO_PIN_PE0, 0); + gpio_select_periph_A(GPIO_PIN_PE1, 0); + gpio_select_periph_A(GPIO_PIN_PE2, 0); + gpio_select_periph_A(GPIO_PIN_PE3, 0); + gpio_select_periph_A(GPIO_PIN_PE4, 0); + gpio_select_periph_A(GPIO_PIN_PE5, 0); + gpio_select_periph_A(GPIO_PIN_PE6, 0); + gpio_select_periph_A(GPIO_PIN_PE7, 0); + gpio_select_periph_A(GPIO_PIN_PE8, 0); + gpio_select_periph_A(GPIO_PIN_PE9, 0); + gpio_select_periph_A(GPIO_PIN_PE10, 0); + gpio_select_periph_A(GPIO_PIN_PE11, 0); + gpio_select_periph_A(GPIO_PIN_PE12, 0); + gpio_select_periph_A(GPIO_PIN_PE13, 0); + gpio_select_periph_A(GPIO_PIN_PE14, 0); + gpio_select_periph_A(GPIO_PIN_PE15, 0); +#endif + gpio_select_periph_A(GPIO_PIN_PE26, 0); +#endif +} + +void gpio_enable_usart0(void) +{ + gpio_select_periph_B(GPIO_PIN_PA8, 0); + gpio_select_periph_B(GPIO_PIN_PA9, 0); +} + +void gpio_enable_usart1(void) +{ + gpio_select_periph_A(GPIO_PIN_PA17, 0); + gpio_select_periph_A(GPIO_PIN_PA18, 0); +} + +void gpio_enable_usart2(void) +{ + gpio_select_periph_B(GPIO_PIN_PB26, 0); + gpio_select_periph_B(GPIO_PIN_PB27, 0); +} + +void gpio_enable_usart3(void) +{ + gpio_select_periph_B(GPIO_PIN_PB18, 0); + gpio_select_periph_B(GPIO_PIN_PB19, 0); +} + +void gpio_enable_macb0(void) +{ + gpio_select_periph_A(GPIO_PIN_PC3, 0); /* TXD0 */ + gpio_select_periph_A(GPIO_PIN_PC4, 0); /* TXD1 */ + gpio_select_periph_A(GPIO_PIN_PC7, 0); /* TXEN */ + gpio_select_periph_A(GPIO_PIN_PC8, 0); /* TXCK */ + gpio_select_periph_A(GPIO_PIN_PC9, 0); /* RXD0 */ + gpio_select_periph_A(GPIO_PIN_PC10, 0); /* RXD1 */ + gpio_select_periph_A(GPIO_PIN_PC13, 0); /* RXER */ + gpio_select_periph_A(GPIO_PIN_PC15, 0); /* RXDV */ + gpio_select_periph_A(GPIO_PIN_PC16, 0); /* MDC */ + gpio_select_periph_A(GPIO_PIN_PC17, 0); /* MDIO */ +#if !defined(CONFIG_RMII) + gpio_select_periph_A(GPIO_PIN_PC0, 0); /* COL */ + gpio_select_periph_A(GPIO_PIN_PC1, 0); /* CRS */ + gpio_select_periph_A(GPIO_PIN_PC2, 0); /* TXER */ + gpio_select_periph_A(GPIO_PIN_PC5, 0); /* TXD2 */ + gpio_select_periph_A(GPIO_PIN_PC6, 0); /* TXD3 */ + gpio_select_periph_A(GPIO_PIN_PC11, 0); /* RXD2 */ + gpio_select_periph_A(GPIO_PIN_PC12, 0); /* RXD3 */ + gpio_select_periph_A(GPIO_PIN_PC14, 0); /* RXCK */ + gpio_select_periph_A(GPIO_PIN_PC18, 0); /* SPD */ +#endif +} + +void gpio_enable_macb1(void) +{ + gpio_select_periph_B(GPIO_PIN_PD13, 0); /* TXD0 */ + gpio_select_periph_B(GPIO_PIN_PD14, 0); /* TXD1 */ + gpio_select_periph_B(GPIO_PIN_PD11, 0); /* TXEN */ + gpio_select_periph_B(GPIO_PIN_PD12, 0); /* TXCK */ + gpio_select_periph_B(GPIO_PIN_PD10, 0); /* RXD0 */ + gpio_select_periph_B(GPIO_PIN_PD6, 0); /* RXD1 */ + gpio_select_periph_B(GPIO_PIN_PD5, 0); /* RXER */ + gpio_select_periph_B(GPIO_PIN_PD4, 0); /* RXDV */ + gpio_select_periph_B(GPIO_PIN_PD3, 0); /* MDC */ + gpio_select_periph_B(GPIO_PIN_PD2, 0); /* MDIO */ +#if !defined(CONFIG_RMII) + gpio_select_periph_B(GPIO_PIN_PC19, 0); /* COL */ + gpio_select_periph_B(GPIO_PIN_PC23, 0); /* CRS */ + gpio_select_periph_B(GPIO_PIN_PC26, 0); /* TXER */ + gpio_select_periph_B(GPIO_PIN_PC27, 0); /* TXD2 */ + gpio_select_periph_B(GPIO_PIN_PC28, 0); /* TXD3 */ + gpio_select_periph_B(GPIO_PIN_PC29, 0); /* RXD2 */ + gpio_select_periph_B(GPIO_PIN_PC30, 0); /* RXD3 */ + gpio_select_periph_B(GPIO_PIN_PC24, 0); /* RXCK */ + gpio_select_periph_B(GPIO_PIN_PD15, 0); /* SPD */ +#endif +} + +void gpio_enable_mmci(void) +{ + gpio_select_periph_A(GPIO_PIN_PA10, 0); /* CLK */ + gpio_select_periph_A(GPIO_PIN_PA11, 0); /* CMD */ + gpio_select_periph_A(GPIO_PIN_PA12, 0); /* DATA0 */ + gpio_select_periph_A(GPIO_PIN_PA13, 0); /* DATA1 */ + gpio_select_periph_A(GPIO_PIN_PA14, 0); /* DATA2 */ + gpio_select_periph_A(GPIO_PIN_PA15, 0); /* DATA3 */ +} diff --git a/cpu/at32ap/atmel_mci.c b/cpu/at32ap/atmel_mci.c new file mode 100644 index 0000000..9f62c0f --- /dev/null +++ b/cpu/at32ap/atmel_mci.c @@ -0,0 +1,477 @@ +/* + * Copyright (C) 2004-2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#include <common.h> + +#ifdef CONFIG_MMC + +#include <part.h> +#include <mmc.h> + +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/byteorder.h> +#include <asm/arch/clk.h> +#include <asm/arch/memory-map.h> + +#include "atmel_mci.h" + +#ifdef DEBUG +#define pr_debug(fmt, args...) printf(fmt, ##args) +#else +#define pr_debug(...) do { } while(0) +#endif + +#ifndef CFG_MMC_CLK_OD +#define CFG_MMC_CLK_OD 150000 +#endif + +#ifndef CFG_MMC_CLK_PP +#define CFG_MMC_CLK_PP 5000000 +#endif + +#ifndef CFG_MMC_OP_COND +#define CFG_MMC_OP_COND 0x00100000 +#endif + +#define MMC_DEFAULT_BLKLEN 512 +#define MMC_DEFAULT_RCA 1 + +static unsigned int mmc_rca; +static block_dev_desc_t mmc_blkdev; + +block_dev_desc_t *mmc_get_dev(int dev) +{ + return &mmc_blkdev; +} + +static void mci_set_mode(unsigned long hz, unsigned long blklen) +{ + unsigned long bus_hz; + unsigned long clkdiv; + + bus_hz = get_mci_clk_rate(); + clkdiv = (bus_hz / hz) / 2 - 1; + + pr_debug("mmc: setting clock %lu Hz, block size %lu\n", + hz, blklen); + + if (clkdiv & ~255UL) { + clkdiv = 255; + printf("mmc: clock %lu too low; setting CLKDIV to 255\n", + hz); + } + + blklen &= 0xfffc; + mmci_writel(MR, (MMCI_BF(CLKDIV, clkdiv) + | MMCI_BF(BLKLEN, blklen))); +} + +#define RESP_NO_CRC 1 +#define R1 MMCI_BF(RSPTYP, 1) +#define R2 MMCI_BF(RSPTYP, 2) +#define R3 (R1 | RESP_NO_CRC) +#define R6 R1 +#define NID MMCI_BF(MAXLAT, 0) +#define NCR MMCI_BF(MAXLAT, 1) +#define TRCMD_START MMCI_BF(TRCMD, 1) +#define TRDIR_READ MMCI_BF(TRDIR, 1) +#define TRTYP_BLOCK MMCI_BF(TRTYP, 0) +#define INIT_CMD MMCI_BF(SPCMD, 1) +#define OPEN_DRAIN MMCI_BF(OPDCMD, 1) + +#define ERROR_FLAGS (MMCI_BIT(DTOE) \ + | MMCI_BIT(RDIRE) \ + | MMCI_BIT(RENDE) \ + | MMCI_BIT(RINDE) \ + | MMCI_BIT(RTOE)) + +static int +mmc_cmd(unsigned long cmd, unsigned long arg, + void *resp, unsigned long flags) +{ + unsigned long *response = resp; + int i, response_words = 0; + unsigned long error_flags; + u32 status; + + pr_debug("mmc: CMD%lu 0x%lx (flags 0x%lx)\n", + cmd, arg, flags); + + error_flags = ERROR_FLAGS; + if (!(flags & RESP_NO_CRC)) + error_flags |= MMCI_BIT(RCRCE); + + flags &= ~MMCI_BF(CMDNB, ~0UL); + + if (MMCI_BFEXT(RSPTYP, flags) == MMCI_RSPTYP_48_BIT_RESP) + response_words = 1; + else if (MMCI_BFEXT(RSPTYP, flags) == MMCI_RSPTYP_136_BIT_RESP) + response_words = 4; + + mmci_writel(ARGR, arg); + mmci_writel(CMDR, cmd | flags); + do { + udelay(40); + status = mmci_readl(SR); + } while (!(status & MMCI_BIT(CMDRDY))); + + pr_debug("mmc: status 0x%08lx\n", status); + + if (status & ERROR_FLAGS) { + printf("mmc: command %lu failed (status: 0x%08lx)\n", + cmd, status); + return -EIO; + } + + if (response_words) + pr_debug("mmc: response:"); + + for (i = 0; i < response_words; i++) { + response[i] = mmci_readl(RSPR); + pr_debug(" %08lx", response[i]); + } + pr_debug("\n"); + + return 0; +} + +static int mmc_acmd(unsigned long cmd, unsigned long arg, + void *resp, unsigned long flags) +{ + unsigned long aresp[4]; + int ret; + + /* + * Seems like the APP_CMD part of an ACMD has 64 cycles max + * latency even though the ACMD part doesn't. This isn't + * entirely clear in the SD Card spec, but some cards refuse + * to work if we attempt to use 5 cycles max latency here... + */ + ret = mmc_cmd(MMC_CMD_APP_CMD, 0, aresp, + R1 | NCR | (flags & OPEN_DRAIN)); + if (ret) + return ret; + if ((aresp[0] & (R1_ILLEGAL_COMMAND | R1_APP_CMD)) != R1_APP_CMD) + return -ENODEV; + + ret = mmc_cmd(cmd, arg, resp, flags); + return ret; +} + +static unsigned long +mmc_bread(int dev, unsigned long start, lbaint_t blkcnt, + unsigned long *buffer) +{ + int ret, i = 0; + unsigned long resp[4]; + unsigned long card_status, data; + unsigned long wordcount; + u32 status; + + if (blkcnt == 0) + return 0; + + pr_debug("mmc_bread: dev %d, start %lx, blkcnt %lx\n", + dev, start, blkcnt); + + /* Put the device into Transfer state */ + ret = mmc_cmd(MMC_CMD_SELECT_CARD, mmc_rca << 16, resp, R1 | NCR); + if (ret) goto fail; + + /* Set block length */ + ret = mmc_cmd(MMC_CMD_SET_BLOCKLEN, mmc_blkdev.blksz, resp, R1 | NCR); + if (ret) goto fail; + + pr_debug("MCI_DTOR = %08lx\n", mmci_readl(DTOR)); + + for (i = 0; i < blkcnt; i++, start++) { + ret = mmc_cmd(MMC_CMD_READ_SINGLE_BLOCK, + start * mmc_blkdev.blksz, resp, + (R1 | NCR | TRCMD_START | TRDIR_READ + | TRTYP_BLOCK)); + if (ret) goto fail; + + ret = -EIO; + wordcount = 0; + do { + do { + status = mmci_readl(SR); + if (status & (ERROR_FLAGS | MMCI_BIT(OVRE))) + goto fail; + } while (!(status & MMCI_BIT(RXRDY))); + + if (status & MMCI_BIT(RXRDY)) { + data = mmci_readl(RDR); + /* pr_debug("%x\n", data); */ + *buffer++ = data; + wordcount++; + } + } while(wordcount < (512 / 4)); + + pr_debug("mmc: read %u words, waiting for BLKE\n", wordcount); + + do { + status = mmci_readl(SR); + } while (!(status & MMCI_BIT(BLKE))); + + putc('.'); + } + +out: + /* Put the device back into Standby state */ + mmc_cmd(MMC_CMD_SELECT_CARD, 0, resp, NCR); + return i; + +fail: + mmc_cmd(MMC_CMD_SEND_STATUS, mmc_rca << 16, &card_status, R1 | NCR); + printf("mmc: bread failed, card status = ", card_status); + goto out; +} + +static void mmc_parse_cid(struct mmc_cid *cid, unsigned long *resp) +{ + cid->mid = resp[0] >> 24; + cid->oid = (resp[0] >> 8) & 0xffff; + cid->pnm[0] = resp[0]; + cid->pnm[1] = resp[1] >> 24; + cid->pnm[2] = resp[1] >> 16; + cid->pnm[3] = resp[1] >> 8; + cid->pnm[4] = resp[1]; + cid->pnm[5] = resp[2] >> 24; + cid->pnm[6] = 0; + cid->prv = resp[2] >> 16; + cid->psn = (resp[2] << 16) | (resp[3] >> 16); + cid->mdt = resp[3] >> 8; +} + +static void sd_parse_cid(struct mmc_cid *cid, unsigned long *resp) +{ + cid->mid = resp[0] >> 24; + cid->oid = (resp[0] >> 8) & 0xffff; + cid->pnm[0] = resp[0]; + cid->pnm[1] = resp[1] >> 24; + cid->pnm[2] = resp[1] >> 16; + cid->pnm[3] = resp[1] >> 8; + cid->pnm[4] = resp[1]; + cid->pnm[5] = 0; + cid->pnm[6] = 0; + cid->prv = resp[2] >> 24; + cid->psn = (resp[2] << 8) | (resp[3] >> 24); + cid->mdt = (resp[3] >> 8) & 0x0fff; +} + +static void mmc_dump_cid(const struct mmc_cid *cid) +{ + printf("Manufacturer ID: %02lX\n", cid->mid); + printf("OEM/Application ID: %04lX\n", cid->oid); + printf("Product name: %s\n", cid->pnm); + printf("Product Revision: %lu.%lu\n", + cid->prv >> 4, cid->prv & 0x0f); + printf("Product Serial Number: %lu\n", cid->psn); + printf("Manufacturing Date: %02lu/%02lu\n", + cid->mdt >> 4, cid->mdt & 0x0f); +} + +static void mmc_dump_csd(const struct mmc_csd *csd) +{ + unsigned long *csd_raw = (unsigned long *)csd; + printf("CSD data: %08lx %08lx %08lx %08lx\n", + csd_raw[0], csd_raw[1], csd_raw[2], csd_raw[3]); + printf("CSD structure version: 1.%u\n", csd->csd_structure); + printf("MMC System Spec version: %u\n", csd->spec_vers); + printf("Card command classes: %03x\n", csd->ccc); + printf("Read block length: %u\n", 1 << csd->read_bl_len); + if (csd->read_bl_partial) + puts("Supports partial reads\n"); + else + puts("Does not support partial reads\n"); + printf("Write block length: %u\n", 1 << csd->write_bl_len); + if (csd->write_bl_partial) + puts("Supports partial writes\n"); + else + puts("Does not support partial writes\n"); + if (csd->wp_grp_enable) + printf("Supports group WP: %u\n", csd->wp_grp_size + 1); + else + puts("Does not support group WP\n"); + printf("Card capacity: %u bytes\n", + (csd->c_size + 1) * (1 << (csd->c_size_mult + 2)) * + (1 << csd->read_bl_len)); + printf("File format: %u/%u\n", + csd->file_format_grp, csd->file_format); + puts("Write protection: "); + if (csd->perm_write_protect) + puts(" permanent"); + if (csd->tmp_write_protect) + puts(" temporary"); + putc('\n'); +} + +static int mmc_idle_cards(void) +{ + int ret; + + /* Reset and initialize all cards */ + ret = mmc_cmd(MMC_CMD_GO_IDLE_STATE, 0, NULL, 0); + if (ret) + return ret; + + /* Keep the bus idle for 74 clock cycles */ + return mmc_cmd(0, 0, NULL, INIT_CMD); +} + +static int sd_init_card(struct mmc_cid *cid, int verbose) +{ + unsigned long resp[4]; + int i, ret = 0; + + mmc_idle_cards(); + for (i = 0; i < 1000; i++) { + ret = mmc_acmd(MMC_ACMD_SD_SEND_OP_COND, CFG_MMC_OP_COND, + resp, R3 | NID); + if (ret || (resp[0] & 0x80000000)) + break; + ret = -ETIMEDOUT; + } + + if (ret) + return ret; + + ret = mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, resp, R2 | NID); + if (ret) + return ret; + sd_parse_cid(cid, resp); + if (verbose) + mmc_dump_cid(cid); + + /* Get RCA of the card that responded */ + ret = mmc_cmd(MMC_CMD_SD_SEND_RELATIVE_ADDR, 0, resp, R6 | NCR); + if (ret) + return ret; + + mmc_rca = resp[0] >> 16; + if (verbose) + printf("SD Card detected (RCA %u)\n", mmc_rca); + return 0; +} + +static int mmc_init_card(struct mmc_cid *cid, int verbose) +{ + unsigned long resp[4]; + int i, ret = 0; + + mmc_idle_cards(); + for (i = 0; i < 1000; i++) { + ret = mmc_cmd(MMC_CMD_SEND_OP_COND, CFG_MMC_OP_COND, resp, + R3 | NID | OPEN_DRAIN); + if (ret || (resp[0] & 0x80000000)) + break; + ret = -ETIMEDOUT; + } + + if (ret) + return ret; + + /* Get CID of all cards. FIXME: Support more than one card */ + ret = mmc_cmd(MMC_CMD_ALL_SEND_CID, 0, resp, R2 | NID | OPEN_DRAIN); + if (ret) + return ret; + mmc_parse_cid(cid, resp); + if (verbose) + mmc_dump_cid(cid); + + /* Set Relative Address of the card that responded */ + ret = mmc_cmd(MMC_CMD_SET_RELATIVE_ADDR, mmc_rca << 16, resp, + R1 | NCR | OPEN_DRAIN); + return ret; +} + +int mmc_init(int verbose) +{ + struct mmc_cid cid; + struct mmc_csd csd; + int ret; + + /* Initialize controller */ + mmci_writel(CR, MMCI_BIT(SWRST)); + mmci_writel(CR, MMCI_BIT(MCIEN)); + mmci_writel(DTOR, 0x5f); + mmci_writel(IDR, ~0UL); + mci_set_mode(CFG_MMC_CLK_OD, MMC_DEFAULT_BLKLEN); + + ret = sd_init_card(&cid, verbose); + if (ret) { + mmc_rca = MMC_DEFAULT_RCA; + ret = mmc_init_card(&cid, verbose); + } + if (ret) + return ret; + + /* Get CSD from the card */ + ret = mmc_cmd(MMC_CMD_SEND_CSD, mmc_rca << 16, &csd, R2 | NCR); + if (ret) + return ret; + if (verbose) + mmc_dump_csd(&csd); + + /* Initialize the blockdev structure */ + mmc_blkdev.if_type = IF_TYPE_MMC; + mmc_blkdev.part_type = PART_TYPE_DOS; + mmc_blkdev.block_read = mmc_bread; + sprintf((char *)mmc_blkdev.vendor, + "Man %02x%04x Snr %08x", + cid.mid, cid.oid, cid.psn); + strncpy((char *)mmc_blkdev.product, cid.pnm, + sizeof(mmc_blkdev.product)); + sprintf((char *)mmc_blkdev.revision, "%x %x", + cid.prv >> 4, cid.prv & 0x0f); + mmc_blkdev.blksz = 1 << csd.read_bl_len; + mmc_blkdev.lba = (csd.c_size + 1) * (1 << (csd.c_size_mult + 2)); + + mci_set_mode(CFG_MMC_CLK_PP, mmc_blkdev.blksz); + +#if 0 + if (fat_register_device(&mmc_blkdev, 1)) + printf("Could not register MMC fat device\n"); +#else + init_part(&mmc_blkdev); +#endif + + return 0; +} + +int mmc_read(ulong src, uchar *dst, int size) +{ + return -ENOSYS; +} + +int mmc_write(uchar *src, ulong dst, int size) +{ + return -ENOSYS; +} + +int mmc2info(ulong addr) +{ + return 0; +} + +#endif /* CONFIG_MMC */ diff --git a/cpu/at32ap/atmel_mci.h b/cpu/at32ap/atmel_mci.h new file mode 100644 index 0000000..0ffbc4f --- /dev/null +++ b/cpu/at32ap/atmel_mci.h @@ -0,0 +1,197 @@ +/* + * Copyright (C) 2005-2006 Atmel Corporation + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ +#ifndef __CPU_AT32AP_ATMEL_MCI_H__ +#define __CPU_AT32AP_ATMEL_MCI_H__ + +/* Atmel MultiMedia Card Interface (MCI) registers */ +#define MMCI_CR 0x0000 +#define MMCI_MR 0x0004 +#define MMCI_DTOR 0x0008 +#define MMCI_SDCR 0x000c +#define MMCI_ARGR 0x0010 +#define MMCI_CMDR 0x0014 +#define MMCI_RSPR 0x0020 +#define MMCI_RSPR1 0x0024 +#define MMCI_RSPR2 0x0028 +#define MMCI_RSPR3 0x002c +#define MMCI_RDR 0x0030 +#define MMCI_TDR 0x0034 +#define MMCI_SR 0x0040 +#define MMCI_IER 0x0044 +#define MMCI_IDR 0x0048 +#define MMCI_IMR 0x004c + +/* Bitfields in CR */ +#define MMCI_MCIEN_OFFSET 0 +#define MMCI_MCIEN_SIZE 1 +#define MMCI_MCIDIS_OFFSET 1 +#define MMCI_MCIDIS_SIZE 1 +#define MMCI_PWSEN_OFFSET 2 +#define MMCI_PWSEN_SIZE 1 +#define MMCI_PWSDIS_OFFSET 3 +#define MMCI_PWSDIS_SIZE 1 +#define MMCI_SWRST_OFFSET 7 +#define MMCI_SWRST_SIZE 1 + +/* Bitfields in MR */ +#define MMCI_CLKDIV_OFFSET 0 +#define MMCI_CLKDIV_SIZE 8 +#define MMCI_PWSDIV_OFFSET 8 +#define MMCI_PWSDIV_SIZE 3 +#define MMCI_PDCPADV_OFFSET 14 +#define MMCI_PDCPADV_SIZE 1 +#define MMCI_PDCMODE_OFFSET 15 +#define MMCI_PDCMODE_SIZE 1 +#define MMCI_BLKLEN_OFFSET 16 +#define MMCI_BLKLEN_SIZE 16 + +/* Bitfields in DTOR */ +#define MMCI_DTOCYC_OFFSET 0 +#define MMCI_DTOCYC_SIZE 4 +#define MMCI_DTOMUL_OFFSET 4 +#define MMCI_DTOMUL_SIZE 3 + +/* Bitfields in SDCR */ +#define MMCI_SCDSEL_OFFSET 0 +#define MMCI_SCDSEL_SIZE 4 +#define MMCI_SCDBUS_OFFSET 7 +#define MMCI_SCDBUS_SIZE 1 + +/* Bitfields in ARGR */ +#define MMCI_ARG_OFFSET 0 +#define MMCI_ARG_SIZE 32 + +/* Bitfields in CMDR */ +#define MMCI_CMDNB_OFFSET 0 +#define MMCI_CMDNB_SIZE 6 +#define MMCI_RSPTYP_OFFSET 6 +#define MMCI_RSPTYP_SIZE 2 +#define MMCI_SPCMD_OFFSET 8 +#define MMCI_SPCMD_SIZE 3 +#define MMCI_OPDCMD_OFFSET 11 +#define MMCI_OPDCMD_SIZE 1 +#define MMCI_MAXLAT_OFFSET 12 +#define MMCI_MAXLAT_SIZE 1 +#define MMCI_TRCMD_OFFSET 16 +#define MMCI_TRCMD_SIZE 2 +#define MMCI_TRDIR_OFFSET 18 +#define MMCI_TRDIR_SIZE 1 +#define MMCI_TRTYP_OFFSET 19 +#define MMCI_TRTYP_SIZE 2 + +/* Bitfields in RSPRx */ +#define MMCI_RSP_OFFSET 0 +#define MMCI_RSP_SIZE 32 + +/* Bitfields in SR/IER/IDR/IMR */ +#define MMCI_CMDRDY_OFFSET 0 +#define MMCI_CMDRDY_SIZE 1 +#define MMCI_RXRDY_OFFSET 1 +#define MMCI_RXRDY_SIZE 1 +#define MMCI_TXRDY_OFFSET 2 +#define MMCI_TXRDY_SIZE 1 +#define MMCI_BLKE_OFFSET 3 +#define MMCI_BLKE_SIZE 1 +#define MMCI_DTIP_OFFSET 4 +#define MMCI_DTIP_SIZE 1 +#define MMCI_NOTBUSY_OFFSET 5 +#define MMCI_NOTBUSY_SIZE 1 +#define MMCI_ENDRX_OFFSET 6 +#define MMCI_ENDRX_SIZE 1 +#define MMCI_ENDTX_OFFSET 7 +#define MMCI_ENDTX_SIZE 1 +#define MMCI_RXBUFF_OFFSET 14 +#define MMCI_RXBUFF_SIZE 1 +#define MMCI_TXBUFE_OFFSET 15 +#define MMCI_TXBUFE_SIZE 1 +#define MMCI_RINDE_OFFSET 16 +#define MMCI_RINDE_SIZE 1 +#define MMCI_RDIRE_OFFSET 17 +#define MMCI_RDIRE_SIZE 1 +#define MMCI_RCRCE_OFFSET 18 +#define MMCI_RCRCE_SIZE 1 +#define MMCI_RENDE_OFFSET 19 +#define MMCI_RENDE_SIZE 1 +#define MMCI_RTOE_OFFSET 20 +#define MMCI_RTOE_SIZE 1 +#define MMCI_DCRCE_OFFSET 21 +#define MMCI_DCRCE_SIZE 1 +#define MMCI_DTOE_OFFSET 22 +#define MMCI_DTOE_SIZE 1 +#define MMCI_OVRE_OFFSET 30 +#define MMCI_OVRE_SIZE 1 +#define MMCI_UNRE_OFFSET 31 +#define MMCI_UNRE_SIZE 1 + +/* Constants for DTOMUL */ +#define MMCI_DTOMUL_1_CYCLE 0 +#define MMCI_DTOMUL_16_CYCLES 1 +#define MMCI_DTOMUL_128_CYCLES 2 +#define MMCI_DTOMUL_256_CYCLES 3 +#define MMCI_DTOMUL_1024_CYCLES 4 +#define MMCI_DTOMUL_4096_CYCLES 5 +#define MMCI_DTOMUL_65536_CYCLES 6 +#define MMCI_DTOMUL_1048576_CYCLES 7 + +/* Constants for RSPTYP */ +#define MMCI_RSPTYP_NO_RESP 0 +#define MMCI_RSPTYP_48_BIT_RESP 1 +#define MMCI_RSPTYP_136_BIT_RESP 2 + +/* Constants for SPCMD */ +#define MMCI_SPCMD_NO_SPEC_CMD 0 +#define MMCI_SPCMD_INIT_CMD 1 +#define MMCI_SPCMD_SYNC_CMD 2 +#define MMCI_SPCMD_INT_CMD 4 +#define MMCI_SPCMD_INT_RESP 5 + +/* Constants for TRCMD */ +#define MMCI_TRCMD_NO_TRANS 0 +#define MMCI_TRCMD_START_TRANS 1 +#define MMCI_TRCMD_STOP_TRANS 2 + +/* Constants for TRTYP */ +#define MMCI_TRTYP_BLOCK 0 +#define MMCI_TRTYP_MULTI_BLOCK 1 +#define MMCI_TRTYP_STREAM 2 + +/* Bit manipulation macros */ +#define MMCI_BIT(name) \ + (1 << MMCI_##name##_OFFSET) +#define MMCI_BF(name,value) \ + (((value) & ((1 << MMCI_##name##_SIZE) - 1)) \ + << MMCI_##name##_OFFSET) +#define MMCI_BFEXT(name,value) \ + (((value) >> MMCI_##name##_OFFSET)\ + & ((1 << MMCI_##name##_SIZE) - 1)) +#define MMCI_BFINS(name,value,old) \ + (((old) & ~(((1 << MMCI_##name##_SIZE) - 1) \ + << MMCI_##name##_OFFSET)) \ + | MMCI_BF(name,value)) + +/* Register access macros */ +#define mmci_readl(reg) \ + readl((void *)MMCI_BASE + MMCI_##reg) +#define mmci_writel(reg,value) \ + writel((value), (void *)MMCI_BASE + MMCI_##reg) + +#endif /* __CPU_AT32AP_ATMEL_MCI_H__ */ diff --git a/cpu/at32ap/cpu.c b/cpu/at32ap/cpu.c index 37e3ea0..311466b 100644 --- a/cpu/at32ap/cpu.c +++ b/cpu/at32ap/cpu.c @@ -26,33 +26,79 @@ #include <asm/sections.h> #include <asm/sysreg.h> +#include <asm/arch/clk.h> #include <asm/arch/memory-map.h> -#include <asm/arch/platform.h> #include "hsmc3.h" +#include "sm.h" + +/* Sanity checks */ +#if (CFG_CLKDIV_CPU > CFG_CLKDIV_HSB) \ + || (CFG_CLKDIV_HSB > CFG_CLKDIV_PBA) \ + || (CFG_CLKDIV_HSB > CFG_CLKDIV_PBB) +# error Constraint fCPU >= fHSB >= fPB{A,B} violated +#endif +#if defined(CONFIG_PLL) && ((CFG_PLL0_MUL < 1) || (CFG_PLL0_DIV < 1)) +# error Invalid PLL multiplier and/or divider +#endif DECLARE_GLOBAL_DATA_PTR; +static void pm_init(void) +{ + uint32_t cksel; + +#ifdef CONFIG_PLL + /* Initialize the PLL */ + sm_writel(PM_PLL0, (SM_BF(PLLCOUNT, CFG_PLL0_SUPPRESS_CYCLES) + | SM_BF(PLLMUL, CFG_PLL0_MUL - 1) + | SM_BF(PLLDIV, CFG_PLL0_DIV - 1) + | SM_BF(PLLOPT, CFG_PLL0_OPT) + | SM_BF(PLLOSC, 0) + | SM_BIT(PLLEN))); + + /* Wait for lock */ + while (!(sm_readl(PM_ISR) & SM_BIT(LOCK0))) ; +#endif + + /* Set up clocks for the CPU and all peripheral buses */ + cksel = 0; + if (CFG_CLKDIV_CPU) + cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CFG_CLKDIV_CPU - 1); + if (CFG_CLKDIV_HSB) + cksel |= SM_BIT(HSBDIV) | SM_BF(HSBSEL, CFG_CLKDIV_HSB - 1); + if (CFG_CLKDIV_PBA) + cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CFG_CLKDIV_PBA - 1); + if (CFG_CLKDIV_PBB) + cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CFG_CLKDIV_PBB - 1); + sm_writel(PM_CKSEL, cksel); + + gd->cpu_hz = get_cpu_clk_rate(); + +#ifdef CONFIG_PLL + /* Use PLL0 as main clock */ + sm_writel(PM_MCCTRL, SM_BIT(PLLSEL)); +#endif +} + int cpu_init(void) { - const struct device *hebi; extern void _evba(void); char *p; gd->cpu_hz = CFG_OSC0_HZ; - /* fff03400: 00010001 04030402 00050005 10011103 */ - hebi = get_device(DEVICE_HEBI); - hsmc3_writel(hebi, MODE0, 0x00031103); - hsmc3_writel(hebi, CYCLE0, 0x000c000d); - hsmc3_writel(hebi, PULSE0, 0x0b0a0906); - hsmc3_writel(hebi, SETUP0, 0x00010002); + /* TODO: Move somewhere else, but needs to be run before we + * increase the clock frequency. */ + hsmc3_writel(MODE0, 0x00031103); + hsmc3_writel(CYCLE0, 0x000c000d); + hsmc3_writel(PULSE0, 0x0b0a0906); + hsmc3_writel(SETUP0, 0x00010002); pm_init(); sysreg_write(EVBA, (unsigned long)&_evba); asm volatile("csrf %0" : : "i"(SYSREG_EM_OFFSET)); - gd->console_uart = get_device(CFG_CONSOLE_UART_DEV); /* Lock everything that mess with the flash in the icache */ for (p = __flashprog_start; p <= (__flashprog_end + CFG_ICACHE_LINESZ); diff --git a/cpu/at32ap/device.c b/cpu/at32ap/device.c deleted file mode 100644 index 89914b6..0000000 --- a/cpu/at32ap/device.c +++ /dev/null @@ -1,126 +0,0 @@ -/* - * Copyright (C) 2006 Atmel Corporation - * - * See file CREDITS for list of people who contributed to this - * project. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <common.h> - -#include <asm/arch/platform.h> - -#include "sm.h" - -struct device_state { - int refcount; -}; - -static struct device_state device_state[NR_DEVICES]; - -static int claim_resource(const struct resource *res) -{ - int ret = 0; - - switch (res->type) { - case RESOURCE_GPIO: - ret = gpio_set_func(res->u.gpio.gpio_dev, - res->u.gpio.start, - res->u.gpio.nr_pins, - res->u.gpio.func); - break; - case RESOURCE_CLOCK: - ret = pm_enable_clock(res->u.clock.id, res->u.clock.index); - break; - } - - return ret; -} - -static void free_resource(const struct resource *res) -{ - switch (res->type) { - case RESOURCE_GPIO: - gpio_free(res->u.gpio.gpio_dev, res->u.gpio.start, - res->u.gpio.nr_pins); - break; - case RESOURCE_CLOCK: - pm_disable_clock(res->u.clock.id, res->u.clock.index); - break; - } -} - -static int init_dev(const struct device *dev) -{ - unsigned int i; - int ret = 0; - - for (i = 0; i < dev->nr_resources; i++) { - ret = claim_resource(&dev->resource[i]); - if (ret) - goto cleanup; - } - - return 0; - -cleanup: - while (i--) - free_resource(&dev->resource[i]); - - return ret; -} - -const struct device *get_device(enum device_id devid) -{ - struct device_state *devstate; - const struct device *dev; - unsigned long flags; - int initialized = 0; - int ret = 0; - - devstate = &device_state[devid]; - dev = &chip_device[devid]; - - flags = disable_interrupts(); - if (devstate->refcount++) - initialized = 1; - if (flags) - enable_interrupts(); - - if (!initialized) - ret = init_dev(dev); - - return ret ? NULL : dev; -} - -void put_device(const struct device *dev) -{ - struct device_state *devstate; - unsigned long devid, flags; - - devid = (unsigned long)(dev - chip_device) / sizeof(struct device); - devstate = &device_state[devid]; - - flags = disable_interrupts(); - devstate--; - if (!devstate) { - unsigned int i; - for (i = 0; i < dev->nr_resources; i++) - free_resource(&dev->resource[i]); - } - if (flags) - enable_interrupts(); -} diff --git a/cpu/at32ap/entry.S b/cpu/at32ap/entry.S index b52d798..a6fc688 100644 --- a/cpu/at32ap/entry.S +++ b/cpu/at32ap/entry.S @@ -42,8 +42,7 @@ timer_interrupt_handler: * We're running at interrupt level 3, so we don't need to save * r8-r12 or lr to the stack. */ - mov r8, lo(timer_overflow) - orh r8, hi(timer_overflow) + lda.w r8, timer_overflow ld.w r9, r8[0] mov r10, -1 mtsr SYSREG_COMPARE, r10 diff --git a/cpu/at32ap/exception.c b/cpu/at32ap/exception.c index 4123c44..0672685 100644 --- a/cpu/at32ap/exception.c +++ b/cpu/at32ap/exception.c @@ -24,6 +24,8 @@ #include <asm/sysreg.h> #include <asm/ptrace.h> +DECLARE_GLOBAL_DATA_PTR; + static const char * const cpu_modes[8] = { "Application", "Supervisor", "Interrupt level 0", "Interrupt level 1", "Interrupt level 2", "Interrupt level 3", "Exception", "NMI" @@ -109,11 +111,10 @@ void do_unknown_exception(unsigned int ecr, struct pt_regs *regs) printf("CPU Mode: %s\n", cpu_modes[mode]); /* Avoid exception loops */ - if (regs->sp >= CFG_INIT_SP_ADDR - || regs->sp < (CFG_INIT_SP_ADDR - CONFIG_STACKSIZE)) + if (regs->sp < CFG_SDRAM_BASE || regs->sp >= gd->stack_end) printf("\nStack pointer seems bogus, won't do stack dump\n"); else - dump_mem("\nStack: ", regs->sp, CFG_INIT_SP_ADDR); + dump_mem("\nStack: ", regs->sp, gd->stack_end); panic("Unhandled exception\n"); } diff --git a/cpu/at32ap/hsdramc.c b/cpu/at32ap/hsdramc.c index f36da35..a936e03 100644 --- a/cpu/at32ap/hsdramc.c +++ b/cpu/at32ap/hsdramc.c @@ -25,17 +25,11 @@ #include <asm/io.h> #include <asm/sdram.h> -#include <asm/arch/platform.h> +#include <asm/arch/clk.h> +#include <asm/arch/memory-map.h> #include "hsdramc1.h" -struct hsdramc { - const struct device *hebi; - void *regs; -}; - -static struct hsdramc hsdramc; - unsigned long sdram_init(const struct sdram_info *info) { unsigned long *sdram = (unsigned long *)uncached(info->phys_addr); @@ -44,16 +38,6 @@ unsigned long sdram_init(const struct sdram_info *info) unsigned long bus_hz; unsigned int i; - hsdramc.hebi = get_device(DEVICE_HEBI); - if (!hsdramc.hebi) - return 0; - - /* FIXME: Both of these lines are complete hacks */ - hsdramc.regs = hsdramc.hebi->regs + 0x400; - bus_hz = pm_get_clock_freq(hsdramc.hebi->resource[0].u.clock.id); - - cpu_enable_sdram(); - tmp = (HSDRAMC1_BF(NC, info->col_bits - 8) | HSDRAMC1_BF(NR, info->row_bits - 11) | HSDRAMC1_BF(NB, info->bank_bits - 1) @@ -74,7 +58,7 @@ unsigned long sdram_init(const struct sdram_info *info) + info->bank_bits + 2); #endif - hsdramc1_writel(&hsdramc, CR, tmp); + hsdramc1_writel(CR, tmp); /* * Initialization sequence for SDRAM, from the data sheet: @@ -87,15 +71,15 @@ unsigned long sdram_init(const struct sdram_info *info) /* * 2. A Precharge All command is issued to the SDRAM */ - hsdramc1_writel(&hsdramc, MR, HSDRAMC1_MODE_BANKS_PRECHARGE); - hsdramc1_readl(&hsdramc, MR); + hsdramc1_writel(MR, HSDRAMC1_MODE_BANKS_PRECHARGE); + hsdramc1_readl(MR); writel(0, sdram); /* * 3. Eight auto-refresh (CBR) cycles are provided */ - hsdramc1_writel(&hsdramc, MR, HSDRAMC1_MODE_AUTO_REFRESH); - hsdramc1_readl(&hsdramc, MR); + hsdramc1_writel(MR, HSDRAMC1_MODE_AUTO_REFRESH); + hsdramc1_readl(MR); for (i = 0; i < 8; i++) writel(0, sdram); @@ -106,8 +90,8 @@ unsigned long sdram_init(const struct sdram_info *info) * * CAS from info struct, burst length 1, serial burst type */ - hsdramc1_writel(&hsdramc, MR, HSDRAMC1_MODE_LOAD_MODE); - hsdramc1_readl(&hsdramc, MR); + hsdramc1_writel(MR, HSDRAMC1_MODE_LOAD_MODE); + hsdramc1_readl(MR); writel(0, sdram + (info->cas << 4)); /* @@ -117,9 +101,9 @@ unsigned long sdram_init(const struct sdram_info *info) * From the timing diagram, it looks like tMRD is 3 * cycles...try a dummy read from the peripheral bus. */ - hsdramc1_readl(&hsdramc, MR); - hsdramc1_writel(&hsdramc, MR, HSDRAMC1_MODE_NORMAL); - hsdramc1_readl(&hsdramc, MR); + hsdramc1_readl(MR); + hsdramc1_writel(MR, HSDRAMC1_MODE_NORMAL); + hsdramc1_readl(MR); writel(0, sdram); /* @@ -128,7 +112,8 @@ unsigned long sdram_init(const struct sdram_info *info) * * 15.6 us is a typical value for a burst of length one */ - hsdramc1_writel(&hsdramc, TR, (156 * (bus_hz / 1000)) / 10000); + bus_hz = get_sdram_clk_rate(); + hsdramc1_writel(TR, (156 * (bus_hz / 1000)) / 10000); printf("SDRAM: %u MB at address 0x%08lx\n", sdram_size >> 20, info->phys_addr); diff --git a/cpu/at32ap/hsdramc1.h b/cpu/at32ap/hsdramc1.h index ce229bc..305d2cb 100644 --- a/cpu/at32ap/hsdramc1.h +++ b/cpu/at32ap/hsdramc1.h @@ -135,9 +135,9 @@ | HSDRAMC1_BF(name,value)) /* Register access macros */ -#define hsdramc1_readl(port,reg) \ - readl((port)->regs + HSDRAMC1_##reg) -#define hsdramc1_writel(port,reg,value) \ - writel((value), (port)->regs + HSDRAMC1_##reg) +#define hsdramc1_readl(reg) \ + readl((void *)HSDRAMC_BASE + HSDRAMC1_##reg) +#define hsdramc1_writel(reg,value) \ + writel((value), (void *)HSDRAMC_BASE + HSDRAMC1_##reg) #endif /* __ASM_AVR32_HSDRAMC1_H__ */ diff --git a/cpu/at32ap/hsmc3.h b/cpu/at32ap/hsmc3.h index ec78cee..ca533b9 100644 --- a/cpu/at32ap/hsmc3.h +++ b/cpu/at32ap/hsmc3.h @@ -118,9 +118,9 @@ | HSMC3_BF(name,value)) /* Register access macros */ -#define hsmc3_readl(port,reg) \ - readl((port)->regs + HSMC3_##reg) -#define hsmc3_writel(port,reg,value) \ - writel((value), (port)->regs + HSMC3_##reg) +#define hsmc3_readl(reg) \ + readl((void *)HSMC_BASE + HSMC3_##reg) +#define hsmc3_writel(reg,value) \ + writel((value), (void *)HSMC_BASE + HSMC3_##reg) #endif /* __CPU_AT32AP_HSMC3_H__ */ diff --git a/cpu/at32ap/interrupts.c b/cpu/at32ap/interrupts.c index d720cfa..c9e0499 100644 --- a/cpu/at32ap/interrupts.c +++ b/cpu/at32ap/interrupts.c @@ -27,7 +27,7 @@ #include <asm/processor.h> #include <asm/sysreg.h> -#include <asm/arch/platform.h> +#include <asm/arch/memory-map.h> #define HANDLER_MASK 0x00ffffff #define INTLEV_SHIFT 30 @@ -44,8 +44,6 @@ volatile unsigned long timer_overflow; */ static unsigned long tb_factor; -static const struct device *intc_dev; - unsigned long get_tbclk(void) { return gd->cpu_hz; @@ -117,16 +115,19 @@ void udelay(unsigned long usec) static int set_interrupt_handler(unsigned int nr, void (*handler)(void), unsigned int priority) { + extern void _evba(void); unsigned long intpr; unsigned long handler_addr = (unsigned long)handler; + handler_addr -= (unsigned long)&_evba; + if ((handler_addr & HANDLER_MASK) != handler_addr || (priority & INTLEV_MASK) != priority) return -EINVAL; intpr = (handler_addr & HANDLER_MASK); intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT; - writel(intpr, intc_dev->regs + 4 * nr); + writel(intpr, (void *)INTC_BASE + 4 * nr); return 0; } @@ -143,10 +144,7 @@ void timer_init(void) do_div(tmp, gd->cpu_hz); tb_factor = (u32)tmp; - intc_dev = get_device(DEVICE_INTC); - - if (!intc_dev - || set_interrupt_handler(0, &timer_interrupt_handler, 3)) + if (set_interrupt_handler(0, &timer_interrupt_handler, 3)) return; /* For all practical purposes, this gives us an overflow interrupt */ diff --git a/cpu/at32ap/pio.c b/cpu/at32ap/pio.c index 8b6c3a3..9ba0b8e 100644 --- a/cpu/at32ap/pio.c +++ b/cpu/at32ap/pio.c @@ -21,74 +21,40 @@ */ #include <common.h> -#include <asm/errno.h> #include <asm/io.h> -#include <asm/arch/platform.h> +#include <asm/arch/gpio.h> +#include <asm/arch/memory-map.h> #include "pio2.h" -struct pio_state { - const struct device *dev; - u32 alloc_mask; -}; - -static struct pio_state pio_state[CFG_NR_PIOS]; - -int gpio_set_func(enum device_id gpio_devid, unsigned int start, - unsigned int nr_pins, enum gpio_func func) +void gpio_select_periph_A(unsigned int pin, int use_pullup) { - const struct device *gpio; - struct pio_state *state; - u32 mask; - - state = &pio_state[gpio_devid - DEVICE_PIOA]; - - gpio = get_device(gpio_devid); - if (!gpio) - return -EBUSY; - - state->dev = gpio; - mask = ((1 << nr_pins) - 1) << start; - - if (mask & state->alloc_mask) { - put_device(gpio); - return -EBUSY; - } - state->alloc_mask |= mask; - - switch (func) { - case GPIO_FUNC_GPIO: - /* TODO */ - return -EINVAL; - case GPIO_FUNC_A: - pio2_writel(gpio, ASR, mask); - pio2_writel(gpio, PDR, mask); - pio2_writel(gpio, PUDR, mask); - break; - case GPIO_FUNC_B: - pio2_writel(gpio, BSR, mask); - pio2_writel(gpio, PDR, mask); - pio2_writel(gpio, PUDR, mask); - break; - } - - return 0; + void *base = gpio_pin_to_addr(pin); + uint32_t mask = 1 << (pin & 0x1f); + + if (!base) + panic("Invalid GPIO pin %u\n", pin); + + pio2_writel(base, ASR, mask); + pio2_writel(base, PDR, mask); + if (use_pullup) + pio2_writel(base, PUER, mask); + else + pio2_writel(base, PUDR, mask); } -void gpio_free(enum device_id gpio_devid, unsigned int start, - unsigned int nr_pins) +void gpio_select_periph_B(unsigned int pin, int use_pullup) { - const struct device *gpio; - struct pio_state *state; - u32 mask; - - state = &pio_state[gpio_devid - DEVICE_PIOA]; - gpio = state->dev; - mask = ((1 << nr_pins) - 1) << start; - - pio2_writel(gpio, ODR, mask); - pio2_writel(gpio, PER, mask); - - state->alloc_mask &= ~mask; - put_device(gpio); + void *base = gpio_pin_to_addr(pin); + uint32_t mask = 1 << (pin & 0x1f); + + if (!base) + panic("Invalid GPIO pin %u\n", pin); + + pio2_writel(base, BSR, mask); + pio2_writel(base, PDR, mask); + if (use_pullup) + pio2_writel(base, PUER, mask); + else + pio2_writel(base, PUDR, mask); } diff --git a/cpu/at32ap/pio2.h b/cpu/at32ap/pio2.h index 6b79de3..9719ea8 100644 --- a/cpu/at32ap/pio2.h +++ b/cpu/at32ap/pio2.h @@ -36,9 +36,9 @@ #define PIO2_OWSR 0x00a8 /* Register access macros */ -#define pio2_readl(port,reg) \ - readl((port)->regs + PIO2_##reg) -#define pio2_writel(port,reg,value) \ - writel((value), (port)->regs + PIO2_##reg) +#define pio2_readl(base,reg) \ + readl((void *)base + PIO2_##reg) +#define pio2_writel(base,reg,value) \ + writel((value), (void *)base + PIO2_##reg) #endif /* __CPU_AT32AP_PIO2_H__ */ diff --git a/cpu/at32ap/pm.c b/cpu/at32ap/pm.c index 01ac325..c78d547 100644 --- a/cpu/at32ap/pm.c +++ b/cpu/at32ap/pm.c @@ -26,138 +26,17 @@ #include <asm/io.h> #include <asm/arch/memory-map.h> -#include <asm/arch/platform.h> #include "sm.h" -/* Sanity checks */ -#if (CFG_CLKDIV_CPU > CFG_CLKDIV_HSB) \ - || (CFG_CLKDIV_HSB > CFG_CLKDIV_PBA) \ - || (CFG_CLKDIV_HSB > CFG_CLKDIV_PBB) -# error Constraint fCPU >= fHSB >= fPB{A,B} violated -#endif -#if defined(CONFIG_PLL) && ((CFG_PLL0_MUL < 1) || (CFG_PLL0_DIV < 1)) -# error Invalid PLL multiplier and/or divider -#endif - -DECLARE_GLOBAL_DATA_PTR; - -struct clock_domain_state { - const struct device *bridge; - unsigned long freq; - u32 mask; -}; -static struct clock_domain_state ckd_state[NR_CLOCK_DOMAINS]; - -int pm_enable_clock(enum clock_domain_id id, unsigned int index) -{ - const struct clock_domain *ckd = &chip_clock[id]; - struct clock_domain_state *state = &ckd_state[id]; - - if (ckd->bridge != NO_DEVICE) { - state->bridge = get_device(ckd->bridge); - if (!state->bridge) - return -EBUSY; - } - - state->mask |= 1 << index; - if (gd->sm) - writel(state->mask, gd->sm->regs + ckd->reg); - - return 0; -} - -void pm_disable_clock(enum clock_domain_id id, unsigned int index) -{ - const struct clock_domain *ckd = &chip_clock[id]; - struct clock_domain_state *state = &ckd_state[id]; - - state->mask &= ~(1 << index); - if (gd->sm) - writel(state->mask, gd->sm->regs + ckd->reg); - - if (ckd->bridge) - put_device(state->bridge); -} - -unsigned long pm_get_clock_freq(enum clock_domain_id domain) -{ - return ckd_state[domain].freq; -} - -void pm_init(void) -{ - uint32_t cksel = 0; - unsigned long main_clock; - - /* Make sure we don't disable any device we're already using */ - get_device(DEVICE_HRAMC); - get_device(DEVICE_HEBI); - - /* Enable the PICO as well */ - ckd_state[CLOCK_CPU].mask |= 1; - - gd->sm = get_device(DEVICE_SM); - if (!gd->sm) - panic("Unable to claim system manager device!\n"); - - /* Disable any devices that haven't been explicitly claimed */ - sm_writel(gd->sm, PM_PBB_MASK, ckd_state[CLOCK_PBB].mask); - sm_writel(gd->sm, PM_PBA_MASK, ckd_state[CLOCK_PBA].mask); - sm_writel(gd->sm, PM_HSB_MASK, ckd_state[CLOCK_HSB].mask); - sm_writel(gd->sm, PM_CPU_MASK, ckd_state[CLOCK_CPU].mask); #ifdef CONFIG_PLL - /* Initialize the PLL */ - main_clock = (CFG_OSC0_HZ / CFG_PLL0_DIV) * CFG_PLL0_MUL; - - sm_writel(gd->sm, PM_PLL0, (SM_BF(PLLCOUNT, CFG_PLL0_SUPPRESS_CYCLES) - | SM_BF(PLLMUL, CFG_PLL0_MUL - 1) - | SM_BF(PLLDIV, CFG_PLL0_DIV - 1) - | SM_BF(PLLOPT, CFG_PLL0_OPT) - | SM_BF(PLLOSC, 0) - | SM_BIT(PLLEN))); - - /* Wait for lock */ - while (!(sm_readl(gd->sm, PM_ISR) & SM_BIT(LOCK0))) ; +#define MAIN_CLK_RATE ((CFG_OSC0_HZ / CFG_PLL0_DIV) * CFG_PLL0_MUL) #else - main_clock = CFG_OSC0_HZ; +#define MAIN_CLK_RATE (CFG_OSC0_HZ) #endif - /* Set up clocks for the CPU and all peripheral buses */ - if (CFG_CLKDIV_CPU) { - cksel |= SM_BIT(CPUDIV) | SM_BF(CPUSEL, CFG_CLKDIV_CPU - 1); - ckd_state[CLOCK_CPU].freq = main_clock / (1 << CFG_CLKDIV_CPU); - } else { - ckd_state[CLOCK_CPU].freq = main_clock; - } - if (CFG_CLKDIV_HSB) { - cksel |= SM_BIT(HSBDIV) | SM_BF(HSBSEL, CFG_CLKDIV_HSB - 1); - ckd_state[CLOCK_HSB].freq = main_clock / (1 << CFG_CLKDIV_HSB); - } else { - ckd_state[CLOCK_HSB].freq = main_clock; - } - if (CFG_CLKDIV_PBA) { - cksel |= SM_BIT(PBADIV) | SM_BF(PBASEL, CFG_CLKDIV_PBA - 1); - ckd_state[CLOCK_PBA].freq = main_clock / (1 << CFG_CLKDIV_PBA); - } else { - ckd_state[CLOCK_PBA].freq = main_clock; - } - if (CFG_CLKDIV_PBB) { - cksel |= SM_BIT(PBBDIV) | SM_BF(PBBSEL, CFG_CLKDIV_PBB - 1); - ckd_state[CLOCK_PBB].freq = main_clock / (1 << CFG_CLKDIV_PBB); - } else { - ckd_state[CLOCK_PBB].freq = main_clock; - } - sm_writel(gd->sm, PM_CKSEL, cksel); - - /* CFG_HZ currently depends on cpu_hz */ - gd->cpu_hz = ckd_state[CLOCK_CPU].freq; +DECLARE_GLOBAL_DATA_PTR; -#ifdef CONFIG_PLL - /* Use PLL0 as main clock */ - sm_writel(gd->sm, PM_MCCTRL, SM_BIT(PLLSEL)); -#endif -} #endif /* CFG_POWER_MANAGER */ diff --git a/cpu/at32ap/sm.h b/cpu/at32ap/sm.h index ce81ef0..6492c8e 100644 --- a/cpu/at32ap/sm.h +++ b/cpu/at32ap/sm.h @@ -196,9 +196,9 @@ | SM_BF(name,value)) /* Register access macros */ -#define sm_readl(port,reg) \ - readl((port)->regs + SM_##reg) -#define sm_writel(port,reg,value) \ - writel((value), (port)->regs + SM_##reg) +#define sm_readl(reg) \ + readl((void *)SM_BASE + SM_##reg) +#define sm_writel(reg,value) \ + writel((value), (void *)SM_BASE + SM_##reg) #endif /* __CPU_AT32AP_SM_H__ */ diff --git a/cpu/at32ap/start.S b/cpu/at32ap/start.S index 79ee33b..ab8c2b7 100644 --- a/cpu/at32ap/start.S +++ b/cpu/at32ap/start.S @@ -70,32 +70,12 @@ _start: 2: lddpc sp, sp_init - /* - * Relocate the data section and initialize .bss. Everything - * is guaranteed to be at least doubleword aligned by the - * linker script. - */ - lddpc r12, .Ldata_vma - lddpc r11, .Ldata_lma - lddpc r10, .Ldata_end - sub r10, r12 -4: ld.d r8, r11++ - sub r10, 8 - st.d r12++, r8 - brne 4b - - mov r8, 0 - mov r9, 0 - lddpc r10, .Lbss_end - sub r10, r12 -4: sub r10, 8 - st.d r12++, r8 - brne 4b - /* Initialize the GOT pointer */ lddpc r6, got_init 3: rsub r6, pc - ld.w pc, r6[start_u_boot@got] + + /* Let's go */ + rjmp board_init_f .align 2 .type sp_init,@object @@ -103,11 +83,82 @@ sp_init: .long CFG_INIT_SP_ADDR got_init: .long 3b - _GLOBAL_OFFSET_TABLE_ -.Ldata_lma: - .long __data_lma -.Ldata_vma: - .long _data -.Ldata_end: - .long _edata -.Lbss_end: - .long _end + + /* + * void relocate_code(new_sp, new_gd, monitor_addr) + * + * Relocate the u-boot image into RAM and continue from there. + * Does not return. + */ + .global relocate_code + .type relocate_code,@function +relocate_code: + mov sp, r12 /* use new stack */ + mov r12, r11 /* save new_gd */ + mov r11, r10 /* save destination address */ + + /* copy .text section and flush the cache along the way */ + lda.w r8, _text + lda.w r9, _etext + sub lr, r10, r8 /* relocation offset */ + +1: ldm r8++, r0-r3 + stm r10, r0-r3 + sub r10, -16 + ldm r8++, r0-r3 + stm r10, r0-r3 + sub r10, -16 + cp.w r8, r9 + cache r10[-4], 0x0d /* dcache clean/invalidate */ + cache r10[-4], 0x01 /* icache invalidate */ + brlt 1b + + /* flush write buffer */ + sync 0 + + /* copy data sections */ + lda.w r9, _edata +1: ld.d r0, r8++ + st.d r10++, r0 + cp.w r8, r9 + brlt 1b + + /* zero out .bss */ + mov r0, 0 + mov r1, 0 + lda.w r9, _end + sub r9, r8 +1: st.d r10++, r0 + sub r9, 8 + brgt 1b + + /* jump to RAM */ + sub r0, pc, . - in_ram + add pc, r0, lr + + .align 2 +in_ram: + /* find the new GOT and relocate it */ + lddpc r6, got_init_reloc +3: rsub r6, pc + mov r8, r6 + lda.w r9, _egot + lda.w r10, _got + sub r9, r10 +1: ld.w r0, r8[0] + add r0, lr + st.w r8++, r0 + sub r9, 4 + brgt 1b + + /* Move the exception handlers */ + mfsr r2, SYSREG_EVBA + add r2, lr + mtsr SYSREG_EVBA, r2 + + /* Do the rest of the initialization sequence */ + call board_init_r + + .align 2 +got_init_reloc: + .long 3b - _GLOBAL_OFFSET_TABLE_ diff --git a/cpu/bf533/Makefile b/cpu/bf533/Makefile index 9f4a0d8..dd4f299 100644 --- a/cpu/bf533/Makefile +++ b/cpu/bf533/Makefile @@ -1,6 +1,6 @@ # U-boot - Makefile # -# Copyright (c) 2005 blackfin.uclinux.org +# Copyright (c) 2005-2007 Analog Devices Inc. # # (C) Copyright 2000-2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. @@ -20,22 +20,24 @@ # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, -# MA 02111-1307 USA +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301 USA # include $(TOPDIR)/config.mk LIB = $(obj)lib$(CPU).a -START = start.o start1.o interrupt.o cache.o cplbhdlr.o cplbmgr.o flush.o -COBJS = cpu.o traps.o ints.o serial.o interrupts.o +START = start.o start1.o interrupt.o cache.o flush.o init_sdram.o +COBJS = cpu.o traps.o ints.o serial.o interrupts.o video.o + +EXTRA = init_sdram_bootrom_initblock.o SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) -OBJS := $(addprefix $(obj),$(SOBJS) $(COBJS)) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) START := $(addprefix $(obj),$(START)) -all: $(obj).depend $(START) $(LIB) +all: $(obj).depend $(START) $(LIB) $(obj).depend $(EXTRA) $(LIB): $(OBJS) $(AR) $(ARFLAGS) $@ $(OBJS) diff --git a/cpu/bf533/bf533_serial.h b/cpu/bf533/bf533_serial.h index d430e6c..25b96a9 100644 --- a/cpu/bf533/bf533_serial.h +++ b/cpu/bf533/bf533_serial.h @@ -1,7 +1,7 @@ /* * U-boot - bf533_serial.h Serial Driver defines * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * This file is based on * bf533_serial.h: Definitions for the BlackFin BF533 DSP serial driver. @@ -38,8 +38,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #ifndef _Bf533_SERIAL_H @@ -63,8 +63,7 @@ int serial_getc(void); void serial_puts(const char *s); static void local_put_char(char ch); -extern int get_clock(void); -int baud_table[5] = {9600, 19200, 38400, 57600, 115200}; +int baud_table[5] = { 9600, 19200, 38400, 57600, 115200 }; struct { unsigned char dl_high; diff --git a/cpu/bf533/cache.S b/cpu/bf533/cache.S index 8fac402..03aebe4 100644 --- a/cpu/bf533/cache.S +++ b/cpu/bf533/cache.S @@ -1,12 +1,11 @@ - - #define ASSEMBLY #include <asm/linkage.h> -#include <asm/cpu/def_LPBlackfin.h> +#include <config.h> +#include <asm/blackfin.h> .text .align 2 -ENTRY(blackfin_icache_flush_range) +ENTRY(_blackfin_icache_flush_range) R2 = -32; R2 = R0 & R2; P0 = R2; @@ -20,7 +19,7 @@ ENTRY(blackfin_icache_flush_range) SSYNC; RTS; -ENTRY(blackfin_dcache_flush_range) +ENTRY(_blackfin_dcache_flush_range) R2 = -32; R2 = R0 & R2; P0 = R2; @@ -35,19 +34,21 @@ ENTRY(blackfin_dcache_flush_range) RTS; ENTRY(_icache_invalidate) -ENTRY(invalidate_entire_icache) - [--SP] = ( R7:5); +ENTRY(_invalidate_entire_icache) + [--SP] = (R7:5); P0.L = (IMEM_CONTROL & 0xFFFF); P0.H = (IMEM_CONTROL >> 16); - R7 = [P0]; + R7 =[P0]; - /* Clear the IMC bit , All valid bits in the instruction + /* + * Clear the IMC bit , All valid bits in the instruction * cache are set to the invalid state */ - BITCLR(R7,IMC_P); + BITCLR(R7, IMC_P); CLI R6; - SSYNC; /* SSYNC required before invalidating cache. */ + /* SSYNC required before invalidating cache. */ + SSYNC; .align 8; [P0] = R7; SSYNC; @@ -58,54 +59,55 @@ ENTRY(invalidate_entire_icache) R7 = R7 | R6; CLI R6; - SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ + SSYNC; .align 8; [P0] = R7; SSYNC; STI R6; - ( R7:5) = [SP++]; + (R7:5) =[SP++]; RTS; -/* Invalidate the Entire Data cache by +/* + * Invalidate the Entire Data cache by * clearing DMC[1:0] bits */ -ENTRY(invalidate_entire_dcache) +ENTRY(_invalidate_entire_dcache) ENTRY(_dcache_invalidate) - [--SP] = ( R7:6); + [--SP] = (R7:6); P0.L = (DMEM_CONTROL & 0xFFFF); P0.H = (DMEM_CONTROL >> 16); - R7 = [P0]; + R7 =[P0]; - /* Clear the DMC[1:0] bits, All valid bits in the data + /* + * Clear the DMC[1:0] bits, All valid bits in the data * cache are set to the invalid state */ - BITCLR(R7,DMC0_P); - BITCLR(R7,DMC1_P); + BITCLR(R7, DMC0_P); + BITCLR(R7, DMC1_P); CLI R6; - SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ + SSYNC; .align 8; [P0] = R7; SSYNC; STI R6; - /* Configures the data cache again */ R6 = (ACACHE_BCACHE | ENDCPLB | PORT_PREF0); R7 = R7 | R6; CLI R6; - SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ + SSYNC; .align 8; [P0] = R7; SSYNC; STI R6; - ( R7:6) = [SP++]; + (R7:6) =[SP++]; RTS; -ENTRY(blackfin_dcache_invalidate_range) +ENTRY(_blackfin_dcache_invalidate_range) R2 = -32; R2 = R0 & R2; P0 = R2; @@ -113,13 +115,14 @@ ENTRY(blackfin_dcache_invalidate_range) CSYNC; 1: FLUSHINV[P0++]; - CC = P0 < P1 (iu); - IF CC JUMP 1b (bp); + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); - /* If the data crosses a cache line, then we'll be pointing to - ** the last cache line, but won't have flushed/invalidated it yet, so do - ** one more. - */ + /* + * If the data crosses a cache line, then we'll be pointing to + * the last cache line, but won't have flushed/invalidated it yet, so do + * one more. + */ FLUSHINV[P0]; SSYNC; RTS; diff --git a/cpu/bf533/config.mk b/cpu/bf533/config.mk index a9d529e..6a713c3 100644 --- a/cpu/bf533/config.mk +++ b/cpu/bf533/config.mk @@ -1,6 +1,6 @@ # U-boot - config.mk # -# Copyright (c) 2005 blackfin.uclinux.org +# Copyright (c) 2005-2007 Analog Devices Inc. # # (C) Copyright 2000-2004 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. @@ -20,8 +20,8 @@ # # You should have received a copy of the GNU General Public License # along with this program; if not, write to the Free Software -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, -# MA 02111-1307 USA +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301 USA # -PLATFORM_RELFLAGS += -ffixed-P5 +PLATFORM_RELFLAGS += -mcpu=bf533 -ffixed-P5 diff --git a/cpu/bf533/cplbhdlr.S b/cpu/bf533/cplbhdlr.S deleted file mode 100644 index 61be5bb..0000000 --- a/cpu/bf533/cplbhdlr.S +++ /dev/null @@ -1,193 +0,0 @@ -/* Copyright (C) 2003 Analog Devices, Inc. All Rights Reserved. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. - * - * Blackfin BF533/2.6 support : LG Soft India - */ - - -/* Include an exception handler to invoke the CPLB manager - */ - -#include <asm-blackfin/linkage.h> -#include <asm/cplb.h> -#include <asm/entry.h> - - -.text - -.globl _cplb_hdr; -.type _cplb_hdr, STT_FUNC; -.extern _cplb_mgr; -.type _cplb_mgr, STT_FUNC; -.extern __unknown_exception_occurred; -.type __unknown_exception_occurred, STT_FUNC; -.extern __cplb_miss_all_locked; -.type __cplb_miss_all_locked, STT_FUNC; -.extern __cplb_miss_without_replacement; -.type __cplb_miss_without_replacement, STT_FUNC; -.extern __cplb_protection_violation; -.type __cplb_protection_violation, STT_FUNC; -.extern panic_pv; - -.align 2; - -ENTRY(_cplb_hdr) - SSYNC; - [--SP] = ( R7:0, P5:0 ); - [--SP] = ASTAT; - [--SP] = SEQSTAT; - [--SP] = I0; - [--SP] = I1; - [--SP] = I2; - [--SP] = I3; - [--SP] = LT0; - [--SP] = LB0; - [--SP] = LC0; - [--SP] = LT1; - [--SP] = LB1; - [--SP] = LC1; - R2 = SEQSTAT; - - /*Mask the contents of SEQSTAT and leave only EXCAUSE in R2*/ - R2 <<= 26; - R2 >>= 26; - - R1 = 0x23; /* Data access CPLB protection violation */ - CC = R2 == R1; - IF !CC JUMP not_data_write; - R0 = 2; /* is a write to data space*/ - JUMP is_icplb_miss; - -not_data_write: - R1 = 0x2C; /* CPLB miss on an instruction fetch */ - CC = R2 == R1; - R0 = 0; /* is_data_miss == False*/ - IF CC JUMP is_icplb_miss; - - R1 = 0x26; - CC = R2 == R1; - IF !CC JUMP unknown; - - R0 = 1; /* is_data_miss == True*/ - -is_icplb_miss: - -#if ( defined (CONFIG_BLKFIN_CACHE) || defined (CONFIG_BLKFIN_DCACHE)) -#if ( defined (CONFIG_BLKFIN_CACHE) && !defined (CONFIG_BLKFIN_DCACHE)) - R1 = CPLB_ENABLE_ICACHE; -#endif -#if ( !defined (CONFIG_BLKFIN_CACHE) && defined (CONFIG_BLKFIN_DCACHE)) - R1 = CPLB_ENABLE_DCACHE; -#endif -#if ( defined (CONFIG_BLKFIN_CACHE) && defined (CONFIG_BLKFIN_DCACHE)) - R1 = CPLB_ENABLE_DCACHE | CPLB_ENABLE_ICACHE; -#endif -#else - R1 = 0; -#endif - - [--SP] = RETS; - CALL _cplb_mgr; - RETS = [SP++]; - CC = R0 == 0; - IF !CC JUMP not_replaced; - LC1 = [SP++]; - LB1 = [SP++]; - LT1 = [SP++]; - LC0 = [SP++]; - LB0 = [SP++]; - LT0 = [SP++]; - I3 = [SP++]; - I2 = [SP++]; - I1 = [SP++]; - I0 = [SP++]; - SEQSTAT = [SP++]; - ASTAT = [SP++]; - ( R7:0, P5:0 ) = [SP++]; - RTS; - -unknown: - [--SP] = RETS; - CALL __unknown_exception_occurred; - RETS = [SP++]; - JUMP unknown; -not_replaced: - CC = R0 == CPLB_NO_UNLOCKED; - IF !CC JUMP next_check; - [--SP] = RETS; - CALL __cplb_miss_all_locked; - RETS = [SP++]; -next_check: - CC = R0 == CPLB_NO_ADDR_MATCH; - IF !CC JUMP next_check2; - [--SP] = RETS; - CALL __cplb_miss_without_replacement; - RETS = [SP++]; - JUMP not_replaced; -next_check2: - CC = R0 == CPLB_PROT_VIOL; - IF !CC JUMP strange_return_from_cplb_mgr; - [--SP] = RETS; - CALL __cplb_protection_violation; - RETS = [SP++]; - JUMP not_replaced; -strange_return_from_cplb_mgr: - IDLE; - CSYNC; - JUMP strange_return_from_cplb_mgr; - -/************************************ - * Diagnostic exception handlers - */ - -__cplb_miss_all_locked: - sp += -12; - R0 = CPLB_NO_UNLOCKED; - call panic_bfin; - SP += 12; - RTS; - - __cplb_miss_without_replacement: - sp += -12; - R0 = CPLB_NO_ADDR_MATCH; - call panic_bfin; - SP += 12; - RTS; - -__cplb_protection_violation: - sp += -12; - R0 = CPLB_PROT_VIOL; - call panic_bfin; - SP += 12; - RTS; - -__unknown_exception_occurred: - - /* This function is invoked by the default exception - * handler, if it does not recognise the kind of - * exception that has occurred. In other words, the - * default handler only handles some of the system's - * exception types, and it does not expect any others - * to occur. If your application is going to be using - * other kinds of exceptions, you must replace the - * default handler with your own, that handles all the - * exceptions you will use. - * - * Since there's nothing we can do, we just loop here - * at what we hope is a suitably informative label. - */ - - IDLE; -do_not_know_what_to_do: - CSYNC; - JUMP __unknown_exception_occurred; - - RTS; -.__unknown_exception_occurred.end: -.global __unknown_exception_occurred; -.type __unknown_exception_occurred, STT_FUNC; - -panic_bfin: - RTS; diff --git a/cpu/bf533/cplbmgr.S b/cpu/bf533/cplbmgr.S deleted file mode 100644 index 7a0b048..0000000 --- a/cpu/bf533/cplbmgr.S +++ /dev/null @@ -1,601 +0,0 @@ -/*This file is subject to the terms and conditions of the GNU General Public - * License. - * - * Blackfin BF533/2.6 support : LG Soft India - * Modification: Dec 07 2004 - * 1. Correction in icheck_lock. Valid lock entries were - * geting victimized, for instruction cplb replacement. - * 2. Setup loop's are modified as now toolchain support's P Indexed - * addressing - * :LG Soft India - * - */ - -/* Usage: int _cplb_mgr(is_data_miss,int enable_cache) - * is_data_miss==2 => Mark as Dirty, write to the clean data page - * is_data_miss==1 => Replace a data CPLB. - * is_data_miss==0 => Replace an instruction CPLB. - * - * Returns: - * CPLB_RELOADED => Successfully updated CPLB table. - * CPLB_NO_UNLOCKED => All CPLBs are locked, so cannot be evicted.This indicates - * that the CPLBs in the configuration tablei are badly - * configured, as this should never occur. - * CPLB_NO_ADDR_MATCH => The address being accessed, that triggered the exception, - * is not covered by any of the CPLBs in the configuration - * table. The application isi presumably misbehaving. - * CPLB_PROT_VIOL => The address being accessed, that triggered thei exception, - * was not a first-write to a clean Write Back Data page, - * and so presumably is a genuine violation of the page's - * protection attributes. The application is misbehaving. - */ -#define ASSEMBLY - -#include <asm-blackfin/linkage.h> -#include <asm-blackfin/blackfin.h> -#include <asm-blackfin/cplbtab.h> -#include <asm-blackfin/cplb.h> - -.text - -.align 2; -ENTRY(_cplb_mgr) - - [--SP]=( R7:0,P5:0 ); - - CC = R0 == 2; - IF CC JUMP dcplb_write; - - CC = R0 == 0; - IF !CC JUMP dcplb_miss_compare; - - /* ICPLB Miss Exception. We need to choose one of the - * currently-installed CPLBs, and replace it with one - * from the configuration table. - */ - - P4.L = (ICPLB_FAULT_ADDR & 0xFFFF); - P4.H = (ICPLB_FAULT_ADDR >> 16); - - P1 = 16; - P5.L = page_size_table; - P5.H = page_size_table; - - P0.L = (ICPLB_DATA0 & 0xFFFF); - P0.H = (ICPLB_DATA0 >> 16); - R4 = [P4]; /* Get faulting address*/ - R6 = 64; /* Advance past the fault address, which*/ - R6 = R6 + R4; /* we'll use if we find a match*/ - R3 = ((16 << 8) | 2); /* Extract mask, bits 16 and 17.*/ - - R5 = 0; -isearch: - - R1 = [P0-0x100]; /* Address for this CPLB */ - - R0 = [P0++]; /* Info for this CPLB*/ - CC = BITTST(R0,0); /* Is the CPLB valid?*/ - IF !CC JUMP nomatch; /* Skip it, if not.*/ - CC = R4 < R1(IU); /* If fault address less than page start*/ - IF CC JUMP nomatch; /* then skip this one.*/ - R2 = EXTRACT(R0,R3.L) (Z); /* Get page size*/ - P1 = R2; - P1 = P5 + (P1<<2); /* index into page-size table*/ - R2 = [P1]; /* Get the page size*/ - R1 = R1 + R2; /* and add to page start, to get page end*/ - CC = R4 < R1(IU); /* and see whether fault addr is in page.*/ - IF !CC R4 = R6; /* If so, advance the address and finish loop.*/ - IF !CC JUMP isearch_done; -nomatch: - /* Go around again*/ - R5 += 1; - CC = BITTST(R5, 4); /* i.e CC = R5 >= 16*/ - IF !CC JUMP isearch; - -isearch_done: - I0 = R4; /* Fault address we'll search for*/ - - /* set up pointers */ - P0.L = (ICPLB_DATA0 & 0xFFFF); - P0.H = (ICPLB_DATA0 >> 16); - - /* The replacement procedure for ICPLBs */ - - P4.L = (IMEM_CONTROL & 0xFFFF); - P4.H = (IMEM_CONTROL >> 16); - - /* disable cplbs */ - R5 = [P4]; /* Control Register*/ - BITCLR(R5,ENICPLB_P); - CLI R1; - SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ - .align 8; - [P4] = R5; - SSYNC; - STI R1; - - R1 = -1; /* end point comparison */ - R3 = 16; /* counter */ - - /* Search through CPLBs for first non-locked entry */ - /* Overwrite it by moving everyone else up by 1 */ -icheck_lock: - R0 = [P0++]; - R3 = R3 + R1; - CC = R3 == R1; - IF CC JUMP all_locked; - CC = BITTST(R0, 0); /* an invalid entry is good */ - IF !CC JUMP ifound_victim; - CC = BITTST(R0,1); /* but a locked entry isn't */ - IF CC JUMP icheck_lock; - -ifound_victim: -#ifdef CONFIG_CPLB_INFO - R7 = [P0 - 0x104]; - P2.L = ipdt_table; - P2.H = ipdt_table; - P3.L = ipdt_swapcount_table; - P3.H = ipdt_swapcount_table; - P3 += -4; -icount: - R2 = [P2]; /* address from config table */ - P2 += 8; - P3 += 8; - CC = R2==-1; - IF CC JUMP icount_done; - CC = R7==R2; - IF !CC JUMP icount; - R7 = [P3]; - R7 += 1; - [P3] = R7; - CSYNC; -icount_done: -#endif - LC0=R3; - LSETUP(is_move,ie_move) LC0; -is_move: - R0 = [P0]; - [P0 - 4] = R0; - R0 = [P0 - 0x100]; - [P0-0x104] = R0; -ie_move:P0+=4; - - /* We've made space in the ICPLB table, so that ICPLB15 - * is now free to be overwritten. Next, we have to determine - * which CPLB we need to install, from the configuration - * table. This is a matter of getting the start-of-page - * addresses and page-lengths from the config table, and - * determining whether the fault address falls within that - * range. - */ - - P2.L = ipdt_table; - P2.H = ipdt_table; -#ifdef CONFIG_CPLB_INFO - P3.L = ipdt_swapcount_table; - P3.H = ipdt_swapcount_table; - P3 += -8; -#endif - P0.L = page_size_table; - P0.H = page_size_table; - - /* Retrieve our fault address (which may have been advanced - * because the faulting instruction crossed a page boundary). - */ - - R0 = I0; - - /* An extraction pattern, to get the page-size bits from - * the CPLB data entry. Bits 16-17, so two bits at posn 16. - */ - - R1 = ((16<<8)|2); -inext: R4 = [P2++]; /* address from config table */ - R2 = [P2++]; /* data from config table */ -#ifdef CONFIG_CPLB_INFO - P3 += 8; -#endif - - CC = R4 == -1; /* End of config table*/ - IF CC JUMP no_page_in_table; - - /* See if failed address > start address */ - CC = R4 <= R0(IU); - IF !CC JUMP inext; - - /* extract page size (17:16)*/ - R3 = EXTRACT(R2, R1.L) (Z); - - /* add page size to addr to get range */ - - P5 = R3; - P5 = P0 + (P5 << 2); /* scaled, for int access*/ - R3 = [P5]; - R3 = R3 + R4; - - /* See if failed address < (start address + page size) */ - CC = R0 < R3(IU); - IF !CC JUMP inext; - - /* We've found a CPLB in the config table that covers - * the faulting address, so install this CPLB into the - * last entry of the table. - */ - - P1.L = (ICPLB_DATA15 & 0xFFFF); /*ICPLB_DATA15*/ - P1.H = (ICPLB_DATA15 >> 16); - [P1] = R2; - [P1-0x100] = R4; -#ifdef CONFIG_CPLB_INFO - R3 = [P3]; - R3 += 1; - [P3] = R3; -#endif - - /* P4 points to IMEM_CONTROL, and R5 contains its old - * value, after we disabled ICPLBS. Re-enable them. - */ - - BITSET(R5,ENICPLB_P); - CLI R2; - SSYNC; /* SSYNC required before writing to IMEM_CONTROL. */ - .align 8; - [P4] = R5; - SSYNC; - STI R2; - - ( R7:0,P5:0 ) = [SP++]; - R0 = CPLB_RELOADED; - RTS; - -/* FAILED CASES*/ -no_page_in_table: - ( R7:0,P5:0 ) = [SP++]; - R0 = CPLB_NO_ADDR_MATCH; - RTS; -all_locked: - ( R7:0,P5:0 ) = [SP++]; - R0 = CPLB_NO_UNLOCKED; - RTS; -prot_violation: - ( R7:0,P5:0 ) = [SP++]; - R0 = CPLB_PROT_VIOL; - RTS; - -dcplb_write: - - /* if a DCPLB is marked as write-back (CPLB_WT==0), and - * it is clean (CPLB_DIRTY==0), then a write to the - * CPLB's page triggers a protection violation. We have to - * mark the CPLB as dirty, to indicate that there are - * pending writes associated with the CPLB. - */ - - P4.L = (DCPLB_STATUS & 0xFFFF); - P4.H = (DCPLB_STATUS >> 16); - P3.L = (DCPLB_DATA0 & 0xFFFF); - P3.H = (DCPLB_DATA0 >> 16); - R5 = [P4]; - - /* A protection violation can be caused by more than just writes - * to a clean WB page, so we have to ensure that: - * - It's a write - * - to a clean WB page - * - and is allowed in the mode the access occurred. - */ - - CC = BITTST(R5, 16); /* ensure it was a write*/ - IF !CC JUMP prot_violation; - - /* to check the rest, we have to retrieve the DCPLB.*/ - - /* The low half of DCPLB_STATUS is a bit mask*/ - - R2 = R5.L (Z); /* indicating which CPLB triggered the event.*/ - R3 = 30; /* so we can use this to determine the offset*/ - R2.L = SIGNBITS R2; - R2 = R2.L (Z); /* into the DCPLB table.*/ - R3 = R3 - R2; - P4 = R3; - P3 = P3 + (P4<<2); - R3 = [P3]; /* Retrieve the CPLB*/ - - /* Now we can check whether it's a clean WB page*/ - - CC = BITTST(R3, 14); /* 0==WB, 1==WT*/ - IF CC JUMP prot_violation; - CC = BITTST(R3, 7); /* 0 == clean, 1 == dirty*/ - IF CC JUMP prot_violation; - - /* Check whether the write is allowed in the mode that was active.*/ - - R2 = 1<<3; /* checking write in user mode*/ - CC = BITTST(R5, 17); /* 0==was user, 1==was super*/ - R5 = CC; - R2 <<= R5; /* if was super, check write in super mode*/ - R2 = R3 & R2; - CC = R2 == 0; - IF CC JUMP prot_violation; - - /* It's a genuine write-to-clean-page.*/ - - BITSET(R3, 7); /* mark as dirty*/ - [P3] = R3; /* and write back.*/ - CSYNC; - ( R7:0,P5:0 ) = [SP++]; - R0 = CPLB_RELOADED; - RTS; - -dcplb_miss_compare: - - /* Data CPLB Miss event. We need to choose a CPLB to - * evict, and then locate a new CPLB to install from the - * config table, that covers the faulting address. - */ - - P1.L = (DCPLB_DATA15 & 0xFFFF); - P1.H = (DCPLB_DATA15 >> 16); - - P4.L = (DCPLB_FAULT_ADDR & 0xFFFF); - P4.H = (DCPLB_FAULT_ADDR >> 16); - R4 = [P4]; - I0 = R4; - - /* The replacement procedure for DCPLBs*/ - - R6 = R1; /* Save for later*/ - - /* Turn off CPLBs while we work.*/ - P4.L = (DMEM_CONTROL & 0xFFFF); - P4.H = (DMEM_CONTROL >> 16); - R5 = [P4]; - BITCLR(R5,ENDCPLB_P); - CLI R0; - SSYNC; /* SSYNC required before writing to DMEM_CONTROL. */ - .align 8; - [P4] = R5; - SSYNC; - STI R0; - - /* Start looking for a CPLB to evict. Our order of preference - * is: invalid CPLBs, clean CPLBs, dirty CPLBs. Locked CPLBs - * are no good. - */ - - I1.L = (DCPLB_DATA0 & 0xFFFF); - I1.H = (DCPLB_DATA0 >> 16); - P1 = 3; - P2 = 16; - I2.L = dcplb_preference; - I2.H = dcplb_preference; - LSETUP(sdsearch1, edsearch1) LC0 = P1; -sdsearch1: - R0 = [I2++]; /* Get the bits we're interested in*/ - P0 = I1; /* Go back to start of table*/ - LSETUP (sdsearch2, edsearch2) LC1 = P2; -sdsearch2: - R1 = [P0++]; /* Fetch each installed CPLB in turn*/ - R2 = R1 & R0; /* and test for interesting bits.*/ - CC = R2 == 0; /* If none are set, it'll do.*/ - IF !CC JUMP skip_stack_check; - - R2 = [P0 - 0x104]; /* R2 - PageStart */ - P3.L = page_size_table; /* retrive end address */ - P3.H = page_size_table; /* retrive end address */ - R3 = 0x2; /* 0th - position, 2 bits -length */ - nop; /*Anamoly 05000209*/ - R7 = EXTRACT(R1,R3.l); - R7 = R7 << 2; /* Page size index offset */ - P5 = R7; - P3 = P3 + P5; - R7 = [P3]; /* page size in 1K bytes */ - - R7 = R7 << 0xA; /* in bytes * 1024*/ - R7 = R2 + R7; /* R7 - PageEnd */ - R4 = SP; /* Test SP is in range */ - - CC = R7 < R4; /* if PageEnd < SP */ - IF CC JUMP dfound_victim; - R3 = 0x284; /* stack length from start of trap till the point */ - /* 20 stack locations for future modifications */ - R4 = R4 + R3; - CC = R4 < R2; /* if SP + stacklen < PageStart */ - IF CC JUMP dfound_victim; -skip_stack_check: - -edsearch2: NOP; -edsearch1: NOP; - - /* If we got here, we didn't find a DCPLB we considered - * replacable, which means all of them were locked. - */ - - JUMP all_locked; -dfound_victim: - -#ifdef CONFIG_CPLB_INFO - R1 = [P0 - 0x104]; - P2.L = dpdt_table; - P2.H = dpdt_table; - P3.L = dpdt_swapcount_table; - P3.H = dpdt_swapcount_table; - P3 += -4; -dicount: - R2 = [P2]; - P2 += 8; - P3 += 8; - CC = R2==-1; - IF CC JUMP dicount_done; - CC = R1==R2; - IF !CC JUMP dicount; - R1 = [P3]; - R1 += 1; - [P3] = R1; - CSYNC; -dicount_done: -#endif - - /* Clean down the hardware loops*/ - R2 = 0; - LC1 = R2; - LC0 = R2; - - /* There's a suitable victim in [P0-4] (because we've - * advanced already). If it's a valid dirty write-back - * CPLB, we need to flush the pending writes first. - */ - - CC = BITTST(R1, 0); /* Is it valid?*/ - IF !CC JUMP Ddoverwrite;/* nope.*/ - CC = BITTST(R1, 7); /* Is it dirty?*/ - IF !CC JUMP Ddoverwrite (BP); /* Nope.*/ - CC = BITTST(R1, 14); /* Is it Write-Through?*/ - IF CC JUMP Ddoverwrite; /* Yep*/ - - /* This is a dirty page, so we need to flush all writes - * that are pending on the page. - */ - - /* Retrieve the page start address*/ - R0 = [P0 - 0x104]; - [--sp] = rets; - CALL dcplb_flush; /* R0==CPLB addr, R1==CPLB data*/ - rets = [sp++]; -Ddoverwrite: - - /* [P0-4] is a suitable victim CPLB, so we want to - * overwrite it by moving all the following CPLBs - * one space closer to the start. - */ - - R1.L = ((DCPLB_DATA15+4) & 0xFFFF); /*DCPLB_DATA15+4*/ - R1.H = ((DCPLB_DATA15+4) >> 16); - R0 = P0; - - /* If the victim happens to be in DCPLB15, - * we don't need to move anything. - */ - - CC = R1 == R0; - IF CC JUMP de_moved; - R1 = R1 - R0; - R1 >>= 2; - P1 = R1; - LSETUP(ds_move, de_move) LC0=P1; -ds_move: - R0 = [P0++]; /* move data */ - [P0 - 8] = R0; - R0 = [P0-0x104] /* move address */ -de_move: [P0-0x108] = R0; - - /* We've now made space in DCPLB15 for the new CPLB to be - * installed. The next stage is to locate a CPLB in the - * config table that covers the faulting address. - */ - -de_moved:NOP; - R0 = I0; /* Our faulting address */ - - P2.L = dpdt_table; - P2.H = dpdt_table; -#ifdef CONFIG_CPLB_INFO - P3.L = dpdt_swapcount_table; - P3.H = dpdt_swapcount_table; - P3 += -8; -#endif - - P1.L = page_size_table; - P1.H = page_size_table; - - /* An extraction pattern, to retrieve bits 17:16.*/ - - R1 = (16<<8)|2; -dnext: R4 = [P2++]; /* address */ - R2 = [P2++]; /* data */ -#ifdef CONFIG_CPLB_INFO - P3 += 8; -#endif - - CC = R4 == -1; - IF CC JUMP no_page_in_table; - - /* See if failed address > start address */ - CC = R4 <= R0(IU); - IF !CC JUMP dnext; - - /* extract page size (17:16)*/ - R3 = EXTRACT(R2, R1.L) (Z); - - /* add page size to addr to get range */ - - P5 = R3; - P5 = P1 + (P5 << 2); - R3 = [P5]; - R3 = R3 + R4; - - /* See if failed address < (start address + page size) */ - CC = R0 < R3(IU); - IF !CC JUMP dnext; - - /* We've found the CPLB that should be installed, so - * write it into CPLB15, masking off any caching bits - * if necessary. - */ - - P1.L = (DCPLB_DATA15 & 0xFFFF); - P1.H = (DCPLB_DATA15 >> 16); - - /* If the DCPLB has cache bits set, but caching hasn't - * been enabled, then we want to mask off the cache-in-L1 - * bit before installing. Moreover, if caching is off, we - * also want to ensure that the DCPLB has WT mode set, rather - * than WB, since WB pages still trigger first-write exceptions - * even when not caching is off, and the page isn't marked as - * cachable. Finally, we could mark the page as clean, not dirty, - * but we choose to leave that decision to the user; if the user - * chooses to have a CPLB pre-defined as dirty, then they always - * pay the cost of flushing during eviction, but don't pay the - * cost of first-write exceptions to mark the page as dirty. - */ - -#ifdef CONFIG_BLKFIN_WT - BITSET(R6, 14); /* Set WT*/ -#endif - - [P1] = R2; - [P1-0x100] = R4; -#ifdef CONFIG_CPLB_INFO - R3 = [P3]; - R3 += 1; - [P3] = R3; -#endif - - /* We've installed the CPLB, so re-enable CPLBs. P4 - * points to DMEM_CONTROL, and R5 is the value we - * last wrote to it, when we were disabling CPLBs. - */ - - BITSET(R5,ENDCPLB_P); - CLI R2; - .align 8; - [P4] = R5; - SSYNC; - STI R2; - - ( R7:0,P5:0 ) = [SP++]; - R0 = CPLB_RELOADED; - RTS; - -.data -.align 4; -page_size_table: -.byte4 0x00000400; /* 1K */ -.byte4 0x00001000; /* 4K */ -.byte4 0x00100000; /* 1M */ -.byte4 0x00400000; /* 4M */ - -.align 4; -dcplb_preference: -.byte4 0x00000001; /* valid bit */ -.byte4 0x00000082; /* dirty+lock bits */ -.byte4 0x00000002; /* lock bit */ diff --git a/cpu/bf533/cpu.c b/cpu/bf533/cpu.c index 78e2b96..8118861 100644 --- a/cpu/bf533/cpu.c +++ b/cpu/bf533/cpu.c @@ -1,7 +1,7 @@ /* * U-boot - cpu.c CPU specific functions * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. @@ -21,80 +21,27 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #include <common.h> #include <asm/blackfin.h> #include <command.h> #include <asm/entry.h> +#include <asm/cplb.h> +#include <asm/io.h> -#define SSYNC() asm("ssync;") #define CACHE_ON 1 #define CACHE_OFF 0 -/* Data Attibutes*/ - -#define SDRAM_IGENERIC (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID) -#define SDRAM_IKERNEL (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_LOCK) -#define L1_IMEMORY (PAGE_SIZE_1MB | CPLB_L1_CHBL | CPLB_USER_RD | CPLB_VALID | CPLB_LOCK) -#define SDRAM_INON_CHBL (PAGE_SIZE_4MB | CPLB_USER_RD | CPLB_VALID) - -#define ANOMALY_05000158 0x200 -#define SDRAM_DGENERIC (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_SUPV_WR | CPLB_USER_RD | CPLB_USER_WR | CPLB_VALID | ANOMALY_05000158) -#define SDRAM_DNON_CHBL (PAGE_SIZE_4MB | CPLB_WT | CPLB_L1_AOW | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_USER_RD | CPLB_VALID | ANOMALY_05000158) -#define SDRAM_DKERNEL (PAGE_SIZE_4MB | CPLB_L1_CHBL | CPLB_WT | CPLB_L1_AOW | CPLB_USER_RD | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_VALID | CPLB_LOCK | ANOMALY_05000158) -#define L1_DMEMORY (PAGE_SIZE_4KB | CPLB_L1_CHBL | CPLB_L1_AOW | CPLB_WT | CPLB_SUPV_WR | CPLB_USER_WR | CPLB_VALID | ANOMALY_05000158) -#define SDRAM_EBIU (PAGE_SIZE_4MB | CPLB_WT | CPLB_L1_AOW | CPLB_USER_RD | CPLB_USER_WR | CPLB_SUPV_WR | CPLB_VALID | ANOMALY_05000158) - -static unsigned int icplb_table[16][2]={ - {0xFFA00000, L1_IMEMORY}, - {0x00000000, SDRAM_IKERNEL}, /*SDRAM_Page1*/ - {0x00400000, SDRAM_IKERNEL}, /*SDRAM_Page1*/ - {0x07C00000, SDRAM_IKERNEL}, /*SDRAM_Page14*/ - {0x00800000, SDRAM_IGENERIC}, /*SDRAM_Page2*/ - {0x00C00000, SDRAM_IGENERIC}, /*SDRAM_Page2*/ - {0x01000000, SDRAM_IGENERIC}, /*SDRAM_Page4*/ - {0x01400000, SDRAM_IGENERIC}, /*SDRAM_Page5*/ - {0x01800000, SDRAM_IGENERIC}, /*SDRAM_Page6*/ - {0x01C00000, SDRAM_IGENERIC}, /*SDRAM_Page7*/ - {0x02000000, SDRAM_IGENERIC}, /*SDRAM_Page8*/ - {0x02400000, SDRAM_IGENERIC}, /*SDRAM_Page9*/ - {0x02800000, SDRAM_IGENERIC}, /*SDRAM_Page10*/ - {0x02C00000, SDRAM_IGENERIC}, /*SDRAM_Page11*/ - {0x03000000, SDRAM_IGENERIC}, /*SDRAM_Page12*/ - {0x03400000, SDRAM_IGENERIC}, /*SDRAM_Page13*/ -}; - -static unsigned int dcplb_table[16][2]={ - {0xFFA00000,L1_DMEMORY}, - {0x00000000,SDRAM_DKERNEL}, /*SDRAM_Page1*/ - {0x00400000,SDRAM_DKERNEL}, /*SDRAM_Page1*/ - {0x07C00000,SDRAM_DKERNEL}, /*SDRAM_Page15*/ - {0x00800000,SDRAM_DGENERIC}, /*SDRAM_Page2*/ - {0x00C00000,SDRAM_DGENERIC}, /*SDRAM_Page3*/ - {0x01000000,SDRAM_DGENERIC}, /*SDRAM_Page4*/ - {0x01400000,SDRAM_DGENERIC}, /*SDRAM_Page5*/ - {0x01800000,SDRAM_DGENERIC}, /*SDRAM_Page6*/ - {0x01C00000,SDRAM_DGENERIC}, /*SDRAM_Page7*/ - {0x02000000,SDRAM_DGENERIC}, /*SDRAM_Page8*/ - {0x02400000,SDRAM_DGENERIC}, /*SDRAM_Page9*/ - {0x02800000,SDRAM_DGENERIC}, /*SDRAM_Page10*/ - {0x02C00000,SDRAM_DGENERIC}, /*SDRAM_Page11*/ - {0x03000000,SDRAM_DGENERIC}, /*SDRAM_Page12*/ - {0x20000000,SDRAM_EBIU}, /*For Network */ -}; - -int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +extern unsigned int icplb_table[page_descriptor_table_size][2]; +extern unsigned int dcplb_table[page_descriptor_table_size][2]; + +int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) { - __asm__ __volatile__ - ("cli r3;" - "P0 = %0;" - "JUMP (P0);" - : - : "r" (L1_ISRAM) - ); + __asm__ __volatile__("cli r3;" "P0 = %0;" "JUMP (P0);"::"r"(L1_ISRAM) + ); return 0; } @@ -112,29 +59,62 @@ int cleanup_before_linux(void) void icache_enable(void) { - unsigned int *I0,*I1; - int i; + unsigned int *I0, *I1; + int i, j = 0; + /* Before enable icache, disable it first */ + icache_disable(); I0 = (unsigned int *)ICPLB_ADDR0; I1 = (unsigned int *)ICPLB_DATA0; - for(i=0;i<16;i++){ - *I0++ = icplb_table[i][0]; - *I1++ = icplb_table[i][1]; + /* make sure the locked ones go in first */ + for (i = 0; i < page_descriptor_table_size; i++) { + if (CPLB_LOCK & icplb_table[i][1]) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + icplb_table[i][0], icplb_table[i][1]); + *I0++ = icplb_table[i][0]; + *I1++ = icplb_table[i][1]; + j++; + } + } + + for (i = 0; i < page_descriptor_table_size; i++) { + if (!(CPLB_LOCK & icplb_table[i][1])) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + icplb_table[i][0], icplb_table[i][1]); + *I0++ = icplb_table[i][0]; + *I1++ = icplb_table[i][1]; + j++; + if (j == 16) { + break; + } + } + } + + /* Fill the rest with invalid entry */ + if (j <= 15) { + for (; j < 16; j++) { + debug("filling %i with 0", j); + *I1++ = 0x0; } + + } + cli(); - SSYNC(); + sync(); + asm(" .align 8; "); *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB; - SSYNC(); + sync(); sti(); } void icache_disable(void) { cli(); - SSYNC(); + sync(); + asm(" .align 8; "); *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB); - SSYNC(); + sync(); sti(); } @@ -143,7 +123,7 @@ int icache_status(void) unsigned int value; value = *(unsigned int *)IMEM_CONTROL; - if( value & (IMC|ENICPLB) ) + if (value & (IMC | ENICPLB)) return CACHE_ON; else return CACHE_OFF; @@ -151,38 +131,90 @@ int icache_status(void) void dcache_enable(void) { - unsigned int *I0,*I1; + unsigned int *I0, *I1; unsigned int temp; - int i; + int i, j = 0; + + /* Before enable dcache, disable it first */ + dcache_disable(); I0 = (unsigned int *)DCPLB_ADDR0; I1 = (unsigned int *)DCPLB_DATA0; - for(i=0;i<16;i++){ - *I0++ = dcplb_table[i][0]; - *I1++ = dcplb_table[i][1]; + /* make sure the locked ones go in first */ + for (i = 0; i < page_descriptor_table_size; i++) { + if (CPLB_LOCK & dcplb_table[i][1]) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + *I0++ = dcplb_table[i][0]; + *I1++ = dcplb_table[i][1]; + j++; + } else { + debug("skip %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + } + } + + for (i = 0; i < page_descriptor_table_size; i++) { + if (!(CPLB_LOCK & dcplb_table[i][1])) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + *I0++ = dcplb_table[i][0]; + *I1++ = dcplb_table[i][1]; + j++; + if (j == 16) { + break; + } } + } + + /* Fill the rest with invalid entry */ + if (j <= 15) { + for (; j < 16; j++) { + debug("filling %i with 0", j); + *I1++ = 0x0; + } + } + cli(); temp = *(unsigned int *)DMEM_CONTROL; - SSYNC(); - *(unsigned int *)DMEM_CONTROL = ACACHE_BCACHE |ENDCPLB |PORT_PREF0|temp; - SSYNC(); + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL = + ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | temp; + sync(); sti(); } void dcache_disable(void) { + unsigned int *I0, *I1; + int i; + cli(); - SSYNC(); - *(unsigned int *)DMEM_CONTROL &= ~(ACACHE_BCACHE |ENDCPLB |PORT_PREF0); - SSYNC(); + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL &= + ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + sync(); sti(); + + /* after disable dcache, + * clear it so we don't confuse the next application + */ + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + + for (i = 0; i < 16; i++) { + *I0++ = 0x0; + *I1++ = 0x0; + } } int dcache_status(void) { unsigned int value; value = *(unsigned int *)DMEM_CONTROL; - if( value & (ENDCPLB)) + if (value & (ENDCPLB)) return CACHE_ON; else return CACHE_OFF; diff --git a/cpu/bf533/cpu.h b/cpu/bf533/cpu.h index 7ec3387..b6b73b1 100644 --- a/cpu/bf533/cpu.h +++ b/cpu/bf533/cpu.h @@ -1,7 +1,7 @@ /* * U-boot - cpu.h * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -18,8 +18,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #ifndef _CPU_H_ @@ -32,8 +32,8 @@ #define DEF_INTERRUPT_FLAGS 1 #define MAX_TIM_LOAD 0xFFFFFFFF -void blackfin_irq_panic(int reason, struct pt_regs * reg); -extern void dump(struct pt_regs * regs); +void blackfin_irq_panic(int reason, struct pt_regs *reg); +extern void dump(struct pt_regs *regs); void display_excp(void); asmlinkage void evt_nmi(void); asmlinkage void evt_exception(void); @@ -50,16 +50,17 @@ asmlinkage void evt_evt12(void); asmlinkage void evt_evt13(void); asmlinkage void evt_soft_int1(void); asmlinkage void evt_system_call(void); -void blackfin_irq_panic(int reason, struct pt_regs * regs); +void blackfin_irq_panic(int reason, struct pt_regs *regs); void blackfin_free_irq(unsigned int irq, void *dev_id); -void call_isr(int irq, struct pt_regs * fp); +void call_isr(int irq, struct pt_regs *fp); void blackfin_do_irq(int vec, struct pt_regs *fp); void blackfin_init_IRQ(void); void blackfin_enable_irq(unsigned int irq); void blackfin_disable_irq(unsigned int irq); -extern int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]); +extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); int blackfin_request_irq(unsigned int irq, - void (*handler)(int, void *, struct pt_regs *), - unsigned long flags,const char *devname,void *dev_id); + void (*handler) (int, void *, struct pt_regs *), + unsigned long flags, const char *devname, + void *dev_id); void timer_init(void); #endif diff --git a/cpu/bf533/flush.S b/cpu/bf533/flush.S index 9fbdefc..62e3d65 100644 --- a/cpu/bf533/flush.S +++ b/cpu/bf533/flush.S @@ -1,15 +1,14 @@ -/* Copyright (C) 2003 Analog Devices, Inc. All Rights Reserved. - * Copyright (C) 2004 LG SOft India. All Rights Reserved. +/* Copyright (C) 2003-2007 Analog Devices Inc. * * This file is subject to the terms and conditions of the GNU General Public * License. - * - * Blackfin BF533/2.6 support : LG Soft India */ + #define ASSEMBLY #include <asm/linkage.h> #include <asm/cplb.h> +#include <config.h> #include <asm/blackfin.h> .text @@ -20,7 +19,7 @@ * in the instruction cache. */ -ENTRY(flush_instruction_cache) +ENTRY(_flush_instruction_cache) [--SP] = ( R7:6, P5:4 ); LINK 12; SP += -12; @@ -33,7 +32,7 @@ ENTRY(flush_instruction_cache) inext: R0 = [P5++]; R1 = [P4++]; [--SP] = RETS; - CALL icplb_flush; /* R0 = page, R1 = data*/ + CALL _icplb_flush; /* R0 = page, R1 = data*/ RETS = [SP++]; iskip: R6 += -1; CC = R6; @@ -52,7 +51,7 @@ iskip: R6 += -1; */ .align 2 -ENTRY(icplb_flush) +ENTRY(_icplb_flush) [--SP] = ( R7:0, P5:0 ); [--SP] = LC0; [--SP] = LT0; @@ -86,16 +85,17 @@ ENTRY(icplb_flush) */ R3 = ((12<<8)|2); /* Extraction pattern */ - nop; /*Anamoly 05000209*/ - R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/ - R3.H = R4.L << 0 ; /* Save in extraction pattern for later deposit.*/ + nop; /* Anamoly 05000209 */ + R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits */ + /* Save in extraction pattern for later deposit. */ + R3.H = R4.L << 0; /* So: * R0 = Page start * R1 = Page length (actually, offset into size/prefix tables) * R3 = sub-bank deposit values - * + * * The cache has 2 Ways, and 64 sets, so we iterate through * the sets, accessing the tag for each Way, for our Bank and * sub-bank, looking for dirty, valid tags that match our @@ -180,8 +180,10 @@ iflush_whole_page: SSYNC; IFLUSH [P0++]; /* because CSYNC can't end loops.*/ LSETUP (isall, ieall) LC0 = P1; -isall:IFLUSH [P0++]; -ieall: NOP; +isall: + IFLUSH [P0++]; +ieall: + NOP; SSYNC; JUMP ifinished; @@ -191,7 +193,7 @@ ieall: NOP; * in the data cache. */ -ENTRY(flush_data_cache) +ENTRY(_flush_data_cache) [--SP] = ( R7:6, P5:4 ); LINK 12; SP += -12; @@ -209,7 +211,7 @@ next: R0 = [P5++]; CC = R2; IF !CC JUMP skip; /* If not, ignore it.*/ [--SP] = RETS; - CALL dcplb_flush; /* R0 = page, R1 = data*/ + CALL _dcplb_flush; /* R0 = page, R1 = data*/ RETS = [SP++]; skip: R6 += -1; CC = R6; @@ -228,7 +230,7 @@ skip: R6 += -1; */ .align 2 -ENTRY(dcplb_flush) +ENTRY(_dcplb_flush) [--SP] = ( R7:0, P5:0 ); [--SP] = LC0; [--SP] = LT0; @@ -290,14 +292,15 @@ bank_chosen: R3 = ((12<<8)|2); /* Extraction pattern */ nop; /*Anamoly 05000209*/ R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/ - R3.H = R4.L << 0 ; /* Save in extraction pattern for later deposit.*/ + /* Save in extraction pattern for later deposit.*/ + R3.H = R4.L << 0; /* So: * R0 = Page start * R1 = Page length (actually, offset into size/prefix tables) * R2 = Bank select mask * R3 = sub-bank deposit values - * + * * The cache has 2 Ways, and 64 sets, so we iterate through * the sets, accessing the tag for each Way, for our Bank and * sub-bank, looking for dirty, valid tags that match our @@ -386,7 +389,7 @@ dflush_whole_page: CC = BITTST(R1, 16); /* Whether 1K or 4K*/ IF CC P1 = P2; P1 += -1; /* Unroll one iteration*/ - SSYNC; + SSYNC; FLUSHINV [P0++]; /* because CSYNC can't end loops.*/ LSETUP (eall, eall) LC0 = P1; eall: FLUSHINV [P0++]; diff --git a/cpu/bf533/init_sdram.S b/cpu/bf533/init_sdram.S new file mode 100644 index 0000000..e1a8e2f --- /dev/null +++ b/cpu/bf533/init_sdram.S @@ -0,0 +1,179 @@ +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> +#include <asm/mem_init.h> +.global init_sdram; + +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif + +init_sdram: + [--SP] = ASTAT; + [--SP] = RETS; + [--SP] = (R7:0); + [--SP] = (P5:0); + +#if (BFIN_BOOT_MODE == BF533_SPI_BOOT) + p0.h = hi(SPI_BAUD); + p0.l = lo(SPI_BAUD); + r0.l = CONFIG_SPI_BAUD; + w[p0] = r0.l; + SSYNC; +#endif + + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + /* + * We now are running at speed, time to set the Async mem bank wait states + * This will speed up execution, since we are normally running from FLASH. + */ + + p2.h = (EBIU_AMBCTL1 >> 16); + p2.l = (EBIU_AMBCTL1 & 0xFFFF); + r0.h = (AMBCTL1VAL >> 16); + r0.l = (AMBCTL1VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMBCTL0 >> 16); + p2.l = (EBIU_AMBCTL0 & 0xFFFF); + r0.h = (AMBCTL0VAL >> 16); + r0.l = (AMBCTL0VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMGCTL >> 16); + p2.l = (EBIU_AMGCTL & 0xffff); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* + * Now, Initialize the SDRAM, + * start with the SDRAM Refresh Rate Control Register + */ + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Memory Bank Control Register - bank specific parameters + */ + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Global Control Register - global programmable parameters + * Disable self-refresh + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + + /* + * Check if SDRAM is already powered up, if it is, enable self-refresh + */ + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump skip; + NOP; + BITSET (R0, 23); +skip: + [P2] = R0; + SSYNC; + + /* Write in the new value in the register */ + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + [P2] = R0; + SSYNC; + nop; + + (P5:0) = [SP++]; + (R7:0) = [SP++]; + RETS = [SP++]; + ASTAT = [SP++]; + RTS; diff --git a/cpu/bf533/init_sdram_bootrom_initblock.S b/cpu/bf533/init_sdram_bootrom_initblock.S new file mode 100644 index 0000000..99ed920 --- /dev/null +++ b/cpu/bf533/init_sdram_bootrom_initblock.S @@ -0,0 +1,179 @@ +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> +#include <asm/mem_init.h> +.global init_sdram; + +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif + +init_sdram: + [--SP] = ASTAT; + [--SP] = RETS; + [--SP] = (R7:0); + [--SP] = (P5:0); + +#if (BFIN_BOOT_MODE == BF533_SPI_BOOT) + p0.h = hi(SPI_BAUD); + p0.l = lo(SPI_BAUD); + r0.l = CONFIG_SPI_BAUD_INITBLOCK; + w[p0] = r0.l; + SSYNC; +#endif + + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + /* + * We now are running at speed, time to set the Async mem bank wait states + * This will speed up execution, since we are normally running from FLASH. + */ + + p2.h = (EBIU_AMBCTL1 >> 16); + p2.l = (EBIU_AMBCTL1 & 0xFFFF); + r0.h = (AMBCTL1VAL >> 16); + r0.l = (AMBCTL1VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMBCTL0 >> 16); + p2.l = (EBIU_AMBCTL0 & 0xFFFF); + r0.h = (AMBCTL0VAL >> 16); + r0.l = (AMBCTL0VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMGCTL >> 16); + p2.l = (EBIU_AMGCTL & 0xffff); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* + * Now, Initialize the SDRAM, + * start with the SDRAM Refresh Rate Control Register + */ + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Memory Bank Control Register - bank specific parameters + */ + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Global Control Register - global programmable parameters + * Disable self-refresh + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + + /* + * Check if SDRAM is already powered up, if it is, enable self-refresh + */ + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump skip; + NOP; + BITSET (R0, 23); +skip: + [P2] = R0; + SSYNC; + + /* Write in the new value in the register */ + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + [P2] = R0; + SSYNC; + nop; + + (P5:0) = [SP++]; + (R7:0) = [SP++]; + RETS = [SP++]; + ASTAT = [SP++]; + RTS; diff --git a/cpu/bf533/interrupt.S b/cpu/bf533/interrupt.S index e780dc6..c356d53 100644 --- a/cpu/bf533/interrupt.S +++ b/cpu/bf533/interrupt.S @@ -1,7 +1,7 @@ /* * U-boot - interrupt.S Processing of interrupts and exception handling * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. @@ -35,208 +35,63 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #define ASSEMBLY - +#include <config.h> +#include <asm/blackfin.h> #include <asm/hw_irq.h> #include <asm/entry.h> #include <asm/blackfin_defs.h> -#include <asm/cpu/bf533_irq.h> -.global blackfin_irq_panic; +.global _blackfin_irq_panic; .text .align 2 #ifndef CONFIG_KGDB -.global evt_emulation -evt_emulation: +.global _evt_emulation +_evt_emulation: SAVE_CONTEXT r0 = IRQ_EMU; r1 = seqstat; sp += -12; - call blackfin_irq_panic; + call _blackfin_irq_panic; sp += 12; rte; #endif -.global evt_nmi -evt_nmi: +.global _evt_nmi +_evt_nmi: SAVE_CONTEXT r0 = IRQ_NMI; r1 = RETN; sp += -12; - call blackfin_irq_panic; + call _blackfin_irq_panic; sp += 12; _evt_nmi_exit: rtn; -.global trap -trap: - [--sp] = r0; - [--sp] = r1; - [--sp] = p0; - [--sp] = p1; - [--sp] = astat; - r0 = seqstat; - R0 <<= 26; - R0 >>= 26; - p0 = r0; - p1.l = EVTABLE; - p1.h = EVTABLE; - p0 = p1 + (p0 << 1); - r1 = W[p0] (Z); - p1 = r1; - jump (pc + p1); - -.global _EVENT1 -_EVENT1: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT2 -_EVENT2: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT3 -_EVENT3: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT4 -_EVENT4: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT5 -_EVENT5: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT6 -_EVENT6: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT7 -_EVENT7: - RAISE 15; - JUMP.S _EXIT; - -.global _EVENT8 -_EVENT8: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT9 -_EVENT9: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT10 -_EVENT10: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT11 -_EVENT11: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT12 -_EVENT12: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT13 -_EVENT13: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT14 -_EVENT14: -/* RAISE 14; */ - CALL _cplb_hdr; - JUMP.S _EXIT; - -.global _EVENT19 -_EVENT19: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT20 -_EVENT20: - RAISE 14; - JUMP.S _EXIT; - -.global _EVENT21 -_EVENT21: - RAISE 14; - JUMP.S _EXIT; - -.global _EXIT -_EXIT: - ASTAT = [sp++]; - p1 = [sp++]; - p0 = [sp++]; - r1 = [sp++]; - r0 = [sp++]; - RTX; - -EVTABLE: - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x0000; - .byte2 0x003E; - .byte2 0x0042; - .byte4 0x0000; - .byte4 0x0000; - .byte4 0x0000; - .byte4 0x0000; - .byte4 0x0000; - .byte4 0x0000; - .byte4 0x0000; - .byte2 0x0000; - .byte2 0x001E; - .byte2 0x0022; - .byte2 0x0032; - .byte2 0x002e; - .byte2 0x0002; - .byte2 0x0036; - .byte2 0x002A; - .byte2 0x001A; - .byte2 0x0016; - .byte2 0x000A; - .byte2 0x000E; - .byte2 0x0012; - .byte2 0x0006; - .byte2 0x0026; +.global _trap +_trap: + SAVE_ALL_SYS + r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ + sp += -12; + call _trap_c + sp += 12; + RESTORE_ALL_SYS + rtx; -.global evt_rst -evt_rst: +.global _evt_rst +_evt_rst: SAVE_CONTEXT r0 = IRQ_RST; r1 = RETN; sp += -12; - call do_reset; + call _do_reset; sp += 12; _evt_rst_exit: @@ -246,19 +101,19 @@ irq_panic: r0 = IRQ_EVX; r1 = sp; sp += -12; - call blackfin_irq_panic; + call _blackfin_irq_panic; sp += 12; -.global evt_ivhw -evt_ivhw: +.global _evt_ivhw +_evt_ivhw: SAVE_CONTEXT RAISE 14; _evt_ivhw_exit: rti; -.global evt_timer -evt_timer: +.global _evt_timer +_evt_timer: SAVE_CONTEXT r0 = IRQ_CORETMR; sp += -12; @@ -269,91 +124,91 @@ evt_timer: rti; nop; -.global evt_evt7 -evt_evt7: +.global _evt_evt7 +_evt_evt7: SAVE_CONTEXT r0 = 7; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt7_exit: RESTORE_CONTEXT rti; -.global evt_evt8 -evt_evt8: +.global _evt_evt8 +_evt_evt8: SAVE_CONTEXT r0 = 8; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt8_exit: RESTORE_CONTEXT rti; -.global evt_evt9 -evt_evt9: +.global _evt_evt9 +_evt_evt9: SAVE_CONTEXT r0 = 9; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt9_exit: RESTORE_CONTEXT rti; -.global evt_evt10 -evt_evt10: +.global _evt_evt10 +_evt_evt10: SAVE_CONTEXT r0 = 10; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt10_exit: RESTORE_CONTEXT rti; -.global evt_evt11 -evt_evt11: +.global _evt_evt11 +_evt_evt11: SAVE_CONTEXT r0 = 11; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt11_exit: RESTORE_CONTEXT rti; -.global evt_evt12 -evt_evt12: +.global _evt_evt12 +_evt_evt12: SAVE_CONTEXT r0 = 12; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt12_exit: RESTORE_CONTEXT rti; -.global evt_evt13 -evt_evt13: +.global _evt_evt13 +_evt_evt13: SAVE_CONTEXT r0 = 13; sp += -12; - call process_int; + call _process_int; sp += 12; evt_evt13_exit: RESTORE_CONTEXT rti; -.global evt_system_call -evt_system_call: +.global _evt_system_call +_evt_system_call: [--sp] = r0; [--SP] = RETI; r0 = [sp++]; @@ -363,7 +218,7 @@ evt_system_call: r0 = [SP++]; SAVE_CONTEXT sp += -12; - call display_excp; + call _exception_handle; sp += 12; RESTORE_CONTEXT RTI; @@ -371,8 +226,8 @@ evt_system_call: evt_system_call_exit: rti; -.global evt_soft_int1 -evt_soft_int1: +.global _evt_soft_int1 +_evt_soft_int1: [--sp] = r0; [--SP] = RETI; r0 = [sp++]; @@ -382,7 +237,7 @@ evt_soft_int1: r0 = [SP++]; SAVE_CONTEXT sp += -12; - call display_excp; + call _exception_handle; sp += 12; RESTORE_CONTEXT RTI; diff --git a/cpu/bf533/interrupts.c b/cpu/bf533/interrupts.c index df1a25e..14d06cf 100644 --- a/cpu/bf533/interrupts.c +++ b/cpu/bf533/interrupts.c @@ -1,7 +1,7 @@ /* * U-boot - interrupts.c Interrupt related routines * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * This file is based on interrupts.c * Copyright 1996 Roman Zippel @@ -10,7 +10,7 @@ * Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> * Copyright 2003 Metrowerks/Motorola * Copyright 2003 Bas Vermeulen <bas@buyways.nl>, - * BuyWays B.V. (www.buyways.nl) + * BuyWays B.V. (www.buyways.nl) * * (C) Copyright 2000-2004 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. @@ -30,21 +30,22 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #include <common.h> #include <asm/machdep.h> #include <asm/irq.h> -#include <asm/cpu/defBF533.h> +#include <config.h> +#include <asm/blackfin.h> #include "cpu.h" static ulong timestamp; static ulong last_time; static int int_flag; -int irq_flags; /* needed by asm-blackfin/system.h */ +int irq_flags; /* needed by asm-blackfin/system.h */ /* Functions just to satisfy the linker */ @@ -61,7 +62,7 @@ unsigned long long get_ticks(void) * This function is derived from PowerPC code (timebase clock frequency). * On BF533 it returns the number of timer ticks per second. */ -ulong get_tbclk (void) +ulong get_tbclk(void) { ulong tbclk; @@ -91,22 +92,22 @@ void udelay(unsigned long usec) unsigned long cclk; cclk = (CONFIG_CCLK_HZ); - while ( usec > 1 ) { - /* - * how many clock ticks to delay? - * - request(in useconds) * clock_ticks(Hz) / useconds/second - */ + while (usec > 1) { + /* + * how many clock ticks to delay? + * - request(in useconds) * clock_ticks(Hz) / useconds/second + */ if (usec < 1000) { - delay = (usec * (cclk/244)) >> 12 ; + delay = (usec * (cclk / 244)) >> 12; usec = 0; } else { - delay = (1000 * (cclk/244)) >> 12 ; + delay = (1000 * (cclk / 244)) >> 12; usec -= 1000; } - asm volatile (" %0 = CYCLES;": "=g"(start)); + asm volatile (" %0 = CYCLES;":"=r" (start)); do { - asm volatile (" %0 = CYCLES; ": "=g"(stop)); + asm volatile (" %0 = CYCLES; ":"=r" (stop)); } while (stop - start < delay); } @@ -117,7 +118,7 @@ void timer_init(void) { *pTCNTL = 0x1; *pTSCALE = 0x0; - *pTCOUNT = MAX_TIM_LOAD; + *pTCOUNT = MAX_TIM_LOAD; *pTPERIOD = MAX_TIM_LOAD; *pTCNTL = 0x7; asm("CSYNC;"); @@ -146,20 +147,23 @@ ulong get_timer(ulong base) /* Number of clocks elapsed */ ulong clocks = (MAX_TIM_LOAD - (*pTCOUNT)); - /* Find if the TCOUNT is reset - timestamp gives the number of times - TCOUNT got reset */ - if(clocks < last_time) + /** + * Find if the TCOUNT is reset + * timestamp gives the number of times + * TCOUNT got reset + */ + if (clocks < last_time) timestamp++; last_time = clocks; /* Get the number of milliseconds */ - milisec = clocks/(CONFIG_CCLK_HZ / 1000); + milisec = clocks / (CONFIG_CCLK_HZ / 1000); - /* Find the number of millisonds - that got elapsed before this TCOUNT - cycle */ - milisec += timestamp * (MAX_TIM_LOAD/(CONFIG_CCLK_HZ / 1000)); + /** + * Find the number of millisonds + * that got elapsed before this TCOUNT cycle + */ + milisec += timestamp * (MAX_TIM_LOAD / (CONFIG_CCLK_HZ / 1000)); return (milisec - base); } diff --git a/cpu/bf533/ints.c b/cpu/bf533/ints.c index 859f4b2..5586689 100644 --- a/cpu/bf533/ints.c +++ b/cpu/bf533/ints.c @@ -1,7 +1,7 @@ /* * U-boot - ints.c Interrupt related routines * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * This file is based on ints.c * @@ -32,8 +32,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #include <common.h> @@ -51,9 +51,9 @@ void blackfin_irq_panic(int reason, struct pt_regs *regs) { printf("\n\nException: IRQ 0x%x entered\n", reason); - printf("code=[0x%x], ", (unsigned int) (regs->seqstat & 0x3f)); - printf("stack frame=0x%x, ", (unsigned int) regs); - printf("bad PC=0x%04x\n", (unsigned int) regs->pc); + printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f)); + printf("stack frame=0x%x, ", (unsigned int)regs); + printf("bad PC=0x%04x\n", (unsigned int)regs->pc); dump(regs); printf("Unhandled IRQ or exceptions!\n"); printf("Please reset the board \n"); @@ -61,46 +61,56 @@ void blackfin_irq_panic(int reason, struct pt_regs *regs) void blackfin_init_IRQ(void) { - *(unsigned volatile long *) (SIC_IMASK) = SIC_UNMASK_ALL; + *(unsigned volatile long *)(SIC_IMASK) = SIC_UNMASK_ALL; cli(); #ifndef CONFIG_KGDB - *(unsigned volatile long *) (EVT_EMULATION_ADDR) = 0x0; + *(unsigned volatile long *)(EVT_EMULATION_ADDR) = 0x0; #endif - *(unsigned volatile long *) (EVT_NMI_ADDR) = - (unsigned volatile long) evt_nmi; - *(unsigned volatile long *) (EVT_EXCEPTION_ADDR) = - (unsigned volatile long) trap; - *(unsigned volatile long *) (EVT_HARDWARE_ERROR_ADDR) = - (unsigned volatile long) evt_ivhw; - *(unsigned volatile long *) (EVT_RESET_ADDR) = - (unsigned volatile long) evt_rst; - *(unsigned volatile long *) (EVT_TIMER_ADDR) = - (unsigned volatile long) evt_timer; - *(unsigned volatile long *) (EVT_IVG7_ADDR) = - (unsigned volatile long) evt_evt7; - *(unsigned volatile long *) (EVT_IVG8_ADDR) = - (unsigned volatile long) evt_evt8; - *(unsigned volatile long *) (EVT_IVG9_ADDR) = - (unsigned volatile long) evt_evt9; - *(unsigned volatile long *) (EVT_IVG10_ADDR) = - (unsigned volatile long) evt_evt10; - *(unsigned volatile long *) (EVT_IVG11_ADDR) = - (unsigned volatile long) evt_evt11; - *(unsigned volatile long *) (EVT_IVG12_ADDR) = - (unsigned volatile long) evt_evt12; - *(unsigned volatile long *) (EVT_IVG13_ADDR) = - (unsigned volatile long) evt_evt13; - *(unsigned volatile long *) (EVT_IVG14_ADDR) = - (unsigned volatile long) evt_system_call; - *(unsigned volatile long *) (EVT_IVG15_ADDR) = - (unsigned volatile long) evt_soft_int1; - *(volatile unsigned long *) ILAT = 0; + *(unsigned volatile long *)(EVT_NMI_ADDR) = + (unsigned volatile long)evt_nmi; + *(unsigned volatile long *)(EVT_EXCEPTION_ADDR) = + (unsigned volatile long)trap; + *(unsigned volatile long *)(EVT_HARDWARE_ERROR_ADDR) = + (unsigned volatile long)evt_ivhw; + *(unsigned volatile long *)(EVT_RESET_ADDR) = + (unsigned volatile long)evt_rst; + *(unsigned volatile long *)(EVT_TIMER_ADDR) = + (unsigned volatile long)evt_timer; + *(unsigned volatile long *)(EVT_IVG7_ADDR) = + (unsigned volatile long)evt_evt7; + *(unsigned volatile long *)(EVT_IVG8_ADDR) = + (unsigned volatile long)evt_evt8; + *(unsigned volatile long *)(EVT_IVG9_ADDR) = + (unsigned volatile long)evt_evt9; + *(unsigned volatile long *)(EVT_IVG10_ADDR) = + (unsigned volatile long)evt_evt10; + *(unsigned volatile long *)(EVT_IVG11_ADDR) = + (unsigned volatile long)evt_evt11; + *(unsigned volatile long *)(EVT_IVG12_ADDR) = + (unsigned volatile long)evt_evt12; + *(unsigned volatile long *)(EVT_IVG13_ADDR) = + (unsigned volatile long)evt_evt13; + *(unsigned volatile long *)(EVT_IVG14_ADDR) = + (unsigned volatile long)evt_system_call; + *(unsigned volatile long *)(EVT_IVG15_ADDR) = + (unsigned volatile long)evt_soft_int1; + *(volatile unsigned long *)ILAT = 0; asm("csync;"); sti(); - *(volatile unsigned long *) IMASK = 0xffbf; + *(volatile unsigned long *)IMASK = 0xffbf; asm("csync;"); } +void exception_handle(void) +{ +#if defined (CONFIG_PANIC_HANG) + display_excp(); +#else + udelay(100000); /* allow messages to go out */ + do_reset(NULL, 0, 0, NULL); +#endif +} + void display_excp(void) { printf("Exception!\n"); diff --git a/cpu/bf533/serial.c b/cpu/bf533/serial.c index 7b43ffd..6cab5da 100644 --- a/cpu/bf533/serial.c +++ b/cpu/bf533/serial.c @@ -1,7 +1,7 @@ /* * U-boot - serial.c Serial driver for BF533 * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * This file is based on * bf533_serial.c: Serial driver for BlackFin BF533 DSP internal UART. @@ -38,8 +38,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #include <common.h> @@ -49,6 +49,7 @@ #include <asm/bitops.h> #include <asm/delay.h> #include <asm/uaccess.h> +#include <asm/io.h> #include "bf533_serial.h" DECLARE_GLOBAL_DATA_PTR; @@ -58,15 +59,16 @@ unsigned long pll_div_fact; void calc_baud(void) { unsigned char i; - int temp; + int temp; + u_long sclk = get_sclk(); - for(i = 0; i < sizeof(baud_table)/sizeof(int); i++) { - temp = CONFIG_SCLK_HZ/(baud_table[i]*8); - if ( temp && 0x1 == 1 ) { + for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) { + temp = sclk / (baud_table[i] * 8); + if ((temp & 0x1) == 1) { temp++; } - temp = temp/2; - hw_baud_table[i].dl_high = (temp >> 8)& 0xFF; + temp = temp / 2; + hw_baud_table[i].dl_high = (temp >> 8) & 0xFF; hw_baud_table[i].dl_low = (temp) & 0xFF; } } @@ -74,6 +76,7 @@ void calc_baud(void) void serial_setbrg(void) { int i; + DECLARE_GLOBAL_DATA_PTR; calc_baud(); @@ -84,29 +87,29 @@ void serial_setbrg(void) /* Enable UART */ *pUART_GCTL |= UART_GCTL_UCEN; - asm("ssync;"); + sync(); /* Set DLAB in LCR to Access DLL and DLH */ ACCESS_LATCH; - asm("ssync;"); + sync(); *pUART_DLL = hw_baud_table[i].dl_low; - asm("ssync;"); + sync(); *pUART_DLH = hw_baud_table[i].dl_high; - asm("ssync;"); + sync(); /* Clear DLAB in LCR to Access THR RBR IER */ ACCESS_PORT_IER; - asm("ssync;"); + sync(); /* Enable ERBFI and ELSI interrupts - * to poll SIC_ISR register*/ + * to poll SIC_ISR register*/ *pUART_IER = UART_IER_ELSI | UART_IER_ERBFI | UART_IER_ETBEI; - asm("ssync;"); + sync(); /* Set LCR to Word Lengh 8-bit word select */ *pUART_LCR = UART_LCR_WLS8; - asm("ssync;"); + sync(); return; } @@ -119,8 +122,7 @@ int serial_init(void) void serial_putc(const char c) { - if ((*pUART_LSR) & UART_LSR_TEMT) - { + if ((*pUART_LSR) & UART_LSR_TEMT) { if (c == '\n') serial_putc('\r'); @@ -148,17 +150,16 @@ int serial_getc(void) int ret; /* Poll for RX Interrupt */ - while (!((isr_val = *(volatile unsigned long *)SIC_ISR) & IRQ_UART_RX_BIT)); + while (!((isr_val = + *(volatile unsigned long *)SIC_ISR) & IRQ_UART_RX_BIT)) ; asm("csync;"); uart_lsr_val = *pUART_LSR; /* Clear status bit */ uart_rbr_val = *pUART_RBR; /* getc() */ if (isr_val & IRQ_UART_ERROR_BIT) { - ret = -1; - } - else - { + ret = -1; + } else { ret = uart_rbr_val & 0xff; } @@ -180,10 +181,10 @@ static void local_put_char(char ch) save_and_cli(flags); /* Poll for TX Interruput */ - while (!((isr_val = *pSIC_ISR) & IRQ_UART_TX_BIT)); + while (!((isr_val = *pSIC_ISR) & IRQ_UART_TX_BIT)) ; asm("csync;"); - *pUART_THR = ch; /* putc() */ + *pUART_THR = ch; /* putc() */ if (isr_val & IRQ_UART_ERROR_BIT) { printf("?"); @@ -191,5 +192,5 @@ static void local_put_char(char ch) restore_flags(flags); - return ; + return; } diff --git a/cpu/bf533/start.S b/cpu/bf533/start.S index 6d58575..67a60cf 100644 --- a/cpu/bf533/start.S +++ b/cpu/bf533/start.S @@ -1,7 +1,7 @@ /* - * U-boot - start.S Startup file of u-boot for BF533 + * U-boot - start.S Startup file of u-boot for BF533/BF561 * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * This file is based on head.S * Copyright (c) 2003 Metrowerks/Motorola @@ -26,8 +26,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ /* @@ -38,9 +38,23 @@ #define ASSEMBLY #include <linux/config.h> -#include <asm/blackfin.h> #include <config.h> -#include <asm/mem_init.h> +#include <asm/blackfin.h> + +.global _stext; +.global __bss_start; +.global start; +.global _start; +.global _rambase; +.global _ramstart; +.global _ramend; +.global _bf533_data_dest; +.global _bf533_data_size; +.global edata; +.global _initialize; +.global _exit; +.global flashdataend; +.global init_sdram; #if (CONFIG_CCLK_DIV == 1) #define CONFIG_CCLK_ACT_DIV CCLK_DIV1 @@ -58,26 +72,12 @@ #define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly #endif -.global _stext; -.global __bss_start; -.global start; -.global _start; -.global _rambase; -.global _ramstart; -.global _ramend; -.global _bf533_data_dest; -.global _bf533_data_size; -.global edata; -.global _initialize; -.global _exit; -.global flashdataend; - .text _start: start: _stext: - R0 = 0x30; + R0 = 0x32; SYSCFG = R0; SSYNC; @@ -120,8 +120,9 @@ _stext: /* Set loop counters to zero, to make sure that * hw loops are disabled. */ - lc0 = 0; - lc1 = 0; + r0 = 0; + lc0 = r0; + lc1 = r0; SSYNC; @@ -150,105 +151,40 @@ no_soft_reset: LSETUP(4,4) lc0 = p1; [ p0 ++ ] = r1; - /* - * Set PLL_CTL - * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors - * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK - * - [7] = output delay (add 200ps of delay to mem signals) - * - [6] = input delay (add 200ps of input delay to mem signals) - * - [5] = PDWN : 1=All Clocks off - * - [3] = STOPCK : 1=Core Clock off - * - [1] = PLL_OFF : 1=Disable Power to PLL - * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL - * all other bits set to zero - */ - - r0 = CONFIG_VCO_MULT; /* Load the VCO multiplier */ - r0 = r0 << 9; /* Shift it over */ - r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2? */ - r0 = r1 | r0; - r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ - r1 = r1 << 8; /* Shift it over */ - r0 = r1 | r0; /* add them all together */ - - p0.h = (PLL_CTL >> 16); - p0.l = (PLL_CTL & 0xFFFF); /* Load the address */ - cli r2; /* Disable interrupts */ - w[p0] = r0; /* Set the value */ - idle; /* Wait for the PLL to stablize */ - sti r2; /* Enable interrupts */ - ssync; - - /* - * Turn on the CYCLES COUNTER - */ - r2 = SYSCFG; - BITSET (r2,1); - SYSCFG = r2; - - /* Configure SCLK & CCLK Dividers */ - r0 = CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV; - p0.h = (PLL_DIV >> 16); - p0.l = (PLL_DIV & 0xFFFF); - w[p0] = r0; - ssync; - -wait_for_pll_stab: - p0.h = (PLL_STAT >> 16); - p0.l = (PLL_STAT & 0xFFFF); - r0.l = w[p0]; - cc = bittst(r0,5); - if !cc jump wait_for_pll_stab; - - /* Configure SDRAM if SDRAM is already not enabled */ - p0.l = (EBIU_SDSTAT & 0xFFFF); - p0.h = (EBIU_SDSTAT >> 16); - r0.l = w[p0]; - cc = bittst(r0, 3); - if !cc jump skip_sdram_enable; - - /* SDRAM initialization */ - p0.l = (EBIU_SDGCTL & 0xFFFF); - p0.h = (EBIU_SDGCTL >> 16); /* SDRAM Memory Global Control Register */ - r0.h = (mem_SDGCTL >> 16); - r0.l = (mem_SDGCTL & 0xFFFF); - [p0] = r0; - ssync; - - p0.l = (EBIU_SDBCTL & 0xFFFF); - p0.h = (EBIU_SDBCTL >> 16); /* SDRAM Memory Bank Control Register */ - r0 = mem_SDBCTL; + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; w[p0] = r0.l; - ssync; + SSYNC; - p0.l = (EBIU_SDRRC & 0xFFFF); - p0.h = (EBIU_SDRRC >> 16); /* SDRAM Refresh Rate Control Register */ - r0 = mem_SDRRC; - w[p0] = r0.l; - ssync; + sp.l = (0xffb01000 & 0xFFFF); + sp.h = (0xffb01000 >> 16); -skip_sdram_enable: - nop; + call init_sdram; -#ifndef CFG_NO_FLASH /* relocate into to RAM */ - p1.l = (CFG_FLASH_BASE & 0xffff); - p1.h = (CFG_FLASH_BASE >> 16); + call get_pc; +offset: + r2.l = offset; + r2.h = offset; + r3.l = start; + r3.h = start; + r1 = r2 - r3; + + r0 = r0 - r1; + p1 = r0; + p2.l = (CFG_MONITOR_BASE & 0xffff); p2.h = (CFG_MONITOR_BASE >> 16); - r0.l = (CFG_MONITOR_LEN & 0xffff); - r0.h = (CFG_MONITOR_LEN >> 16); + + p3 = 0x04; + p4.l = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) & 0xffff); + p4.h = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) >> 16); loop1: - r1 = [p1]; - [p2] = r1; - p3=0x4; - p1=p1+p3; - p2=p2+p3; - r2=0x4; - r0=r0-r2; - cc=r0==0x0; + r1 = [p1 ++ p3]; + [p2 ++ p3] = r1; + cc=p2==p4; if !cc jump loop1; -#endif /* * configure STACK */ @@ -273,7 +209,8 @@ loop1: p0.l = (IMASK & 0xFFFF); p0.h = (IMASK >> 16); - r0 = IVG15_POS; + r0.l = LO(IVG15_POS); + r0.h = HI(IVG15_POS); [p0] = r0; raise 15; p0.l = WAIT_HERE; @@ -288,37 +225,10 @@ WAIT_HERE: _real_start: [ -- sp ] = reti; -#ifdef CONFIG_EZKIT533 - p0.l = (WDOG_CTL & 0xFFFF); - p0.h = (WDOG_CTL >> 16); - r0 = WATCHDOG_DISABLE(z); - w[p0] = r0; -#endif - - /* Code for initializing Async mem banks */ - p2.h = (EBIU_AMBCTL1 >> 16); - p2.l = (EBIU_AMBCTL1 & 0xFFFF); - r0.h = (AMBCTL1VAL >> 16); - r0.l = (AMBCTL1VAL & 0xFFFF); - [p2] = r0; - ssync; - - p2.h = (EBIU_AMBCTL0 >> 16); - p2.l = (EBIU_AMBCTL0 & 0xFFFF); - r0.h = (AMBCTL0VAL >> 16); - r0.l = (AMBCTL0VAL & 0xFFFF); - [p2] = r0; - ssync; - - p2.h = (EBIU_AMGCTL >> 16); - p2.l = (EBIU_AMGCTL & 0xffff); - r0 = AMGCTLVAL; - w[p2] = r0; - ssync; - /* DMA reset code to Hi of L1 SRAM */ copy: - P1.H = hi(SYSMMR_BASE); /* P1 Points to the beginning of SYSTEM MMR Space */ + /* P1 Points to the beginning of SYSTEM MMR Space */ + P1.H = hi(SYSMMR_BASE); P1.L = lo(SYSMMR_BASE); R0.H = reset_start; /* Source Address (high) */ @@ -329,7 +239,8 @@ copy: R1.H = hi(L1_ISRAM); /* Destination Address (high) */ R1.L = lo(L1_ISRAM); /* Destination Address (low) */ R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */ - R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */ + /* Destination DMAConfig Value (8-bit words) */ + R4.L = (DI_EN | WNR | DMAEN); DMA: R6 = 0x1 (Z); @@ -342,57 +253,24 @@ DMA: Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */ W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3; - [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */ - W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */ - /* Set Destination DMAConfig = DMA Enable, - Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */ - W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4; - - IDLE; /* Wait for DMA to Complete */ - - R0 = 0x1; - W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */ - - /* DMA reset code to DATA BANK A which uses this port - * to avoid following problem - * " Data from a Data Cache fill can be corrupoted after or during - * instruction DMA if certain core stalls exist" - */ - -copy_as_data: - R0.H = reset_start; /* Source Address (high) */ - R0.L = reset_start; /* Source Address (low) */ - R1.H = reset_end; - R1.L = reset_end; - R2 = R1 - R0; /* Count */ - R1.H = hi(DATA_BANKA_SRAM); /* Destination Address (high) */ - R1.L = lo(DATA_BANKA_SRAM); /* Destination Address (low) */ - R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */ - R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */ - -DMA_DATA: - R6 = 0x1 (Z); - W[P1+OFFSET_(MDMA_S0_X_MODIFY)] = R6; /* Source Modify = 1 */ - W[P1+OFFSET_(MDMA_D0_X_MODIFY)] = R6; /* Destination Modify = 1 */ - - [P1+OFFSET_(MDMA_S0_START_ADDR)] = R0; /* Set Source Base Address */ - W[P1+OFFSET_(MDMA_S0_X_COUNT)] = R2; /* Set Source Count */ - /* Set Source DMAConfig = DMA Enable, - Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */ - W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3; - - [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */ + /* Set Destination Base Address */ + [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */ /* Set Destination DMAConfig = DMA Enable, Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */ W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4; - IDLE; /* Wait for DMA to Complete */ +WAIT_DMA_DONE: + p0.h = hi(MDMA_D0_IRQ_STATUS); + p0.l = lo(MDMA_D0_IRQ_STATUS); + R0 = W[P0](Z); + CC = BITTST(R0, 0); + if ! CC jump WAIT_DMA_DONE R0 = 0x1; - W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */ -copy_end: nop; + /* Write 1 to clear DMA interrupt */ + W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Initialize BSS Section with 0 s */ p1.l = __bss_start; @@ -433,3 +311,6 @@ reset_end: nop; _exit: jump.s _exit; +get_pc: + r0 = rets; + rts; diff --git a/cpu/bf533/start1.S b/cpu/bf533/start1.S index 6f48124..6d4731b 100644 --- a/cpu/bf533/start1.S +++ b/cpu/bf533/start1.S @@ -1,7 +1,7 @@ /* * U-boot - start1.S Code running out of RAM after relocation * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -18,14 +18,14 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #define ASSEMBLY #include <linux/config.h> -#include <asm/blackfin.h> #include <config.h> +#include <asm/blackfin.h> .global start1; .global _start1; @@ -34,5 +34,5 @@ _start1: start1: sp += -12; - call board_init_f; + call _board_init_f; sp += 12; diff --git a/cpu/bf533/traps.c b/cpu/bf533/traps.c index 37470d5..19b1fde 100644 --- a/cpu/bf533/traps.c +++ b/cpu/bf533/traps.c @@ -1,7 +1,7 @@ /* * U-boot - traps.c Routines related to interrupts and exceptions * - * Copyright (c) 2005 blackfin.uclinux.org + * Copyright (c) 2005-2007 Analog Devices Inc. * * This file is based on * No original Copyright holder listed, @@ -29,8 +29,8 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ #include <common.h> @@ -39,9 +39,11 @@ #include <asm/irq.h> #include <asm/system.h> #include <asm/traps.h> -#include <asm/page.h> #include <asm/machdep.h> #include "cpu.h" +#include <asm/arch/anomaly.h> +#include <asm/cplb.h> +#include <asm/io.h> void init_IRQ(void) { @@ -51,23 +53,187 @@ void init_IRQ(void) void process_int(unsigned long vec, struct pt_regs *fp) { + printf("interrupt\n"); return; } +extern unsigned int icplb_table[page_descriptor_table_size][2]; +extern unsigned int dcplb_table[page_descriptor_table_size][2]; + +unsigned long last_cplb_fault_retx; + +static unsigned int cplb_sizes[4] = + { 1024, 4 * 1024, 1024 * 1024, 4 * 1024 * 1024 }; + +void trap_c(struct pt_regs *regs) +{ + unsigned int addr; + unsigned long trapnr = (regs->seqstat) & SEQSTAT_EXCAUSE; + unsigned int i, j, size, *I0, *I1; + unsigned short data = 0; + + switch (trapnr) { + /* 0x26 - Data CPLB Miss */ + case VEC_CPLB_M: + +#ifdef ANOMALY_05000261 + /* + * Work around an anomaly: if we see a new DCPLB fault, + * return without doing anything. Then, + * if we get the same fault again, handle it. + */ + addr = last_cplb_fault_retx; + last_cplb_fault_retx = regs->retx; + printf("this time, curr = 0x%08x last = 0x%08x\n", + addr, last_cplb_fault_retx); + if (addr != last_cplb_fault_retx) + goto trap_c_return; +#endif + data = 1; + + case VEC_CPLB_I_M: + + if (data) { + addr = *(unsigned int *)pDCPLB_FAULT_ADDR; + } else { + addr = *(unsigned int *)pICPLB_FAULT_ADDR; + } + for (i = 0; i < page_descriptor_table_size; i++) { + if (data) { + size = cplb_sizes[dcplb_table[i][1] >> 16]; + j = dcplb_table[i][0]; + } else { + size = cplb_sizes[icplb_table[i][1] >> 16]; + j = icplb_table[i][0]; + } + if ((j <= addr) && ((j + size) > addr)) { + debug("found %i 0x%08x\n", i, j); + break; + } + } + if (i == page_descriptor_table_size) { + printf("something is really wrong\n"); + do_reset(NULL, 0, 0, NULL); + } + + /* Turn the cache off */ + if (data) { + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL &= + ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + sync(); + } else { + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB); + sync(); + } + + if (data) { + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + } else { + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + } + + j = 0; + while (*I1 & CPLB_LOCK) { + debug("skipping %i %08p - %08x\n", j, I1, *I1); + *I0++; + *I1++; + j++; + } + + debug("remove %i 0x%08x 0x%08x\n", j, *I0, *I1); + + for (; j < 15; j++) { + debug("replace %i 0x%08x 0x%08x\n", j, I0, I0 + 1); + *I0++ = *(I0 + 1); + *I1++ = *(I1 + 1); + } + + if (data) { + *I0 = dcplb_table[i][0]; + *I1 = dcplb_table[i][1]; + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + } else { + *I0 = icplb_table[i][0]; + *I1 = icplb_table[i][1]; + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + } + + for (j = 0; j < 16; j++) { + debug("%i 0x%08x 0x%08x\n", j, *I0++, *I1++); + } + + /* Turn the cache back on */ + if (data) { + j = *(unsigned int *)DMEM_CONTROL; + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL = + ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | j; + sync(); + } else { + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB; + sync(); + } + + break; + default: + /* All traps come here */ + printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f)); + printf("stack frame=0x%x, ", (unsigned int)regs); + printf("bad PC=0x%04x\n", (unsigned int)regs->pc); + dump(regs); + printf("\n\n"); + + printf("Unhandled IRQ or exceptions!\n"); + printf("Please reset the board \n"); + do_reset(NULL, 0, 0, NULL); + } + + return; + +} + void dump(struct pt_regs *fp) { - printf("PC: %08lx\n", fp->pc); - printf("SEQSTAT: %08lx SP: %08lx\n", (long) fp->seqstat, - (long) fp); - printf("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", - fp->r0, fp->r1, fp->r2, fp->r3); - printf("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", - fp->r4, fp->r5, fp->r6, fp->r7); - printf("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", - fp->p0, fp->p1, fp->p2, fp->p3); - printf("P4: %08lx P5: %08lx FP: %08lx\n", fp->p4, fp->p5, - fp->fp); - printf("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n", - fp->a0w, fp->a0x, fp->a1w, fp->a1x); - printf("\n"); + debug("RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n", + fp->rete, fp->retn, fp->retx, fp->rets); + debug("IPEND: %04lx SYSCFG: %04lx\n", fp->ipend, fp->syscfg); + debug("SEQSTAT: %08lx SP: %08lx\n", (long)fp->seqstat, (long)fp); + debug("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", + fp->r0, fp->r1, fp->r2, fp->r3); + debug("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", + fp->r4, fp->r5, fp->r6, fp->r7); + debug("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", + fp->p0, fp->p1, fp->p2, fp->p3); + debug("P4: %08lx P5: %08lx FP: %08lx\n", + fp->p4, fp->p5, fp->fp); + debug("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n", + fp->a0w, fp->a0x, fp->a1w, fp->a1x); + + debug("LB0: %08lx LT0: %08lx LC0: %08lx\n", + fp->lb0, fp->lt0, fp->lc0); + debug("LB1: %08lx LT1: %08lx LC1: %08lx\n", + fp->lb1, fp->lt1, fp->lc1); + debug("B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n", + fp->b0, fp->l0, fp->m0, fp->i0); + debug("B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n", + fp->b1, fp->l1, fp->m1, fp->i1); + debug("B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n", + fp->b2, fp->l2, fp->m2, fp->i2); + debug("B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n", + fp->b3, fp->l3, fp->m3, fp->i3); + + debug("DCPLB_FAULT_ADDR=%p\n", *pDCPLB_FAULT_ADDR); + debug("ICPLB_FAULT_ADDR=%p\n", *pICPLB_FAULT_ADDR); + } diff --git a/cpu/bf533/video.c b/cpu/bf533/video.c new file mode 100644 index 0000000..3ff0151 --- /dev/null +++ b/cpu/bf533/video.c @@ -0,0 +1,194 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * (C) Copyright 2002 + * Wolfgang Denk, wd@denx.de + * (C) Copyright 2006 + * Aubrey Li, aubrey.li@analog.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <stdarg.h> +#include <common.h> +#include <config.h> +#include <asm/blackfin.h> +#include <i2c.h> +#include <linux/types.h> +#include <devices.h> + +#ifdef CONFIG_VIDEO +#define NTSC_FRAME_ADDR 0x06000000 +#include "video.h" + +/* NTSC OUTPUT SIZE 720 * 240 */ +#define VERTICAL 2 +#define HORIZONTAL 4 + +int is_vblank_line(const int line) +{ + /* + * This array contains a single bit for each line in + * an NTSC frame. + */ + if ((line <= 18) || (line >= 264 && line <= 281) || (line == 528)) + return true; + + return false; +} + +int NTSC_framebuffer_init(char *base_address) +{ + const int NTSC_frames = 1; + const int NTSC_lines = 525; + char *dest = base_address; + int frame_num, line_num; + + for (frame_num = 0; frame_num < NTSC_frames; ++frame_num) { + for (line_num = 1; line_num <= NTSC_lines; ++line_num) { + unsigned int code; + int offset = 0; + int i; + + if (is_vblank_line(line_num)) + offset++; + + if (line_num > 266 || line_num < 3) + offset += 2; + + /* Output EAV code */ + code = SystemCodeMap[offset].EAV; + write_dest_byte((char)(code >> 24) & 0xff); + write_dest_byte((char)(code >> 16) & 0xff); + write_dest_byte((char)(code >> 8) & 0xff); + write_dest_byte((char)(code) & 0xff); + + /* Output horizontal blanking */ + for (i = 0; i < 67 * 2; ++i) { + write_dest_byte(0x80); + write_dest_byte(0x10); + } + + /* Output SAV */ + code = SystemCodeMap[offset].SAV; + write_dest_byte((char)(code >> 24) & 0xff); + write_dest_byte((char)(code >> 16) & 0xff); + write_dest_byte((char)(code >> 8) & 0xff); + write_dest_byte((char)(code) & 0xff); + + /* Output empty horizontal data */ + for (i = 0; i < 360 * 2; ++i) { + write_dest_byte(0x80); + write_dest_byte(0x10); + } + } + } + + return dest - base_address; +} + +void fill_frame(char *Frame, int Value) +{ + int *OddPtr32; + int OddLine; + int *EvenPtr32; + int EvenLine; + int i; + int *data; + int m, n; + + /* fill odd and even frames */ + for (OddLine = 22, EvenLine = 285; OddLine < 263; OddLine++, EvenLine++) { + OddPtr32 = (int *)((Frame + (OddLine * 1716)) + 276); + EvenPtr32 = (int *)((Frame + (EvenLine * 1716)) + 276); + for (i = 0; i < 360; i++, OddPtr32++, EvenPtr32++) { + *OddPtr32 = Value; + *EvenPtr32 = Value; + } + } + + for (m = 0; m < VERTICAL; m++) { + data = (int *)u_boot_logo.data; + for (OddLine = (22 + m), EvenLine = (285 + m); + OddLine < (u_boot_logo.height * VERTICAL) + (22 + m); + OddLine += VERTICAL, EvenLine += VERTICAL) { + OddPtr32 = (int *)((Frame + ((OddLine) * 1716)) + 276); + EvenPtr32 = + (int *)((Frame + ((EvenLine) * 1716)) + 276); + for (i = 0; i < u_boot_logo.width / 2; i++) { + /* enlarge one pixel to m x n */ + for (n = 0; n < HORIZONTAL; n++) { + *OddPtr32++ = *data; + *EvenPtr32++ = *data; + } + data++; + } + } + } +} + +void video_putc(const char c) +{ +} + +void video_puts(const char *s) +{ +} + +static int video_init(void) +{ + char *NTSCFrame; + NTSCFrame = (char *)NTSC_FRAME_ADDR; + NTSC_framebuffer_init(NTSCFrame); + fill_frame(NTSCFrame, BLUE); + + *pPPI_CONTROL = 0x0082; + *pPPI_FRAME = 0x020D; + + *pDMA0_START_ADDR = NTSCFrame; + *pDMA0_X_COUNT = 0x035A; + *pDMA0_X_MODIFY = 0x0002; + *pDMA0_Y_COUNT = 0x020D; + *pDMA0_Y_MODIFY = 0x0002; + *pDMA0_CONFIG = 0x1015; + *pPPI_CONTROL = 0x0083; + return 0; +} + +int drv_video_init(void) +{ + int error, devices = 1; + + device_t videodev; + + video_init(); /* Video initialization */ + + memset(&videodev, 0, sizeof(videodev)); + + strcpy(videodev.name, "video"); + videodev.ext = DEV_EXT_VIDEO; /* Video extensions */ + videodev.flags = DEV_FLAGS_OUTPUT; /* Output only */ + videodev.putc = video_putc; /* 'putc' function */ + videodev.puts = video_puts; /* 'puts' function */ + + error = device_register(&videodev); + + return (error == 0) ? devices : error; +} +#endif diff --git a/cpu/bf533/video.h b/cpu/bf533/video.h new file mode 100644 index 0000000..d237f6a --- /dev/null +++ b/cpu/bf533/video.h @@ -0,0 +1,25 @@ +#include <video_logo.h> +#define write_dest_byte(val) {*dest++=val;} +#define BLACK (0x01800180) /* black pixel pattern */ +#define BLUE (0x296E29F0) /* blue pixel pattern */ +#define RED (0x51F0515A) /* red pixel pattern */ +#define MAGENTA (0x6ADE6ACA) /* magenta pixel pattern */ +#define GREEN (0x91229136) /* green pixel pattern */ +#define CYAN (0xAA10AAA6) /* cyan pixel pattern */ +#define YELLOW (0xD292D210) /* yellow pixel pattern */ +#define WHITE (0xFE80FE80) /* white pixel pattern */ + +#define true 1 +#define false 0 + +typedef struct { + unsigned int SAV; + unsigned int EAV; +} SystemCodeType; + +const SystemCodeType SystemCodeMap[4] = { + {0xFF000080, 0xFF00009D}, + {0xFF0000AB, 0xFF0000B6}, + {0xFF0000C7, 0xFF0000DA}, + {0xFF0000EC, 0xFF0000F1} +}; diff --git a/cpu/bf537/Makefile b/cpu/bf537/Makefile new file mode 100644 index 0000000..8b0f9c0 --- /dev/null +++ b/cpu/bf537/Makefile @@ -0,0 +1,52 @@ +# U-boot - Makefile +# +# Copyright (c) 2005-2007 Analog Devices Inc. +# +# (C) Copyright 2000-2004 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o start1.o interrupt.o cache.o flush.o init_sdram.o +COBJS = cpu.o traps.o ints.o serial.o interrupts.o video.o i2c.o + +EXTRA = init_sdram_bootrom_initblock.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) $(obj).depend $(EXTRA) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/bf537/cache.S b/cpu/bf537/cache.S new file mode 100644 index 0000000..5bda5bf --- /dev/null +++ b/cpu/bf537/cache.S @@ -0,0 +1,128 @@ +#define ASSEMBLY +#include <asm/linkage.h> +#include <config.h> +#include <asm/blackfin.h> + +.text +.align 2 +ENTRY(_blackfin_icache_flush_range) + R2 = -32; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; + 1: + IFLUSH[P0++]; + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); + IFLUSH[P0]; + SSYNC; + RTS; + +ENTRY(_blackfin_dcache_flush_range) + R2 = -32; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; +1: + FLUSH[P0++]; + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); + FLUSH[P0]; + SSYNC; + RTS; + +ENTRY(_icache_invalidate) +ENTRY(_invalidate_entire_icache) + [--SP] = (R7:5); + + P0.L = (IMEM_CONTROL & 0xFFFF); + P0.H = (IMEM_CONTROL >> 16); + R7 =[P0]; + + /* + * Clear the IMC bit , All valid bits in the instruction + * cache are set to the invalid state + */ + BITCLR(R7, IMC_P); + CLI R6; + /* SSYNC required before invalidating cache. */ + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + /* Configures the instruction cache agian */ + R6 = (IMC | ENICPLB); + R7 = R7 | R6; + + CLI R6; + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + (R7:5) =[SP++]; + RTS; + +/* + * Invalidate the Entire Data cache by + * clearing DMC[1:0] bits + */ +ENTRY(_invalidate_entire_dcache) +ENTRY(_dcache_invalidate) + [--SP] = (R7:6); + + P0.L = (DMEM_CONTROL & 0xFFFF); + P0.H = (DMEM_CONTROL >> 16); + R7 =[P0]; + + /* + * Clear the DMC[1:0] bits, All valid bits in the data + * cache are set to the invalid state + */ + BITCLR(R7, DMC0_P); + BITCLR(R7, DMC1_P); + CLI R6; + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + /* Configures the data cache again */ + + R6 = (ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + R7 = R7 | R6; + + CLI R6; + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + (R7:6) =[SP++]; + RTS; + +ENTRY(_blackfin_dcache_invalidate_range) + R2 = -32; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; +1: + FLUSHINV[P0++]; + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); + + /* + * If the data crosses a cache line, then we'll be pointing to + * the last cache line, but won't have flushed/invalidated it yet, so do + * one more. + */ + FLUSHINV[P0]; + SSYNC; + RTS; diff --git a/cpu/bf537/config.mk b/cpu/bf537/config.mk new file mode 100644 index 0000000..8a35789 --- /dev/null +++ b/cpu/bf537/config.mk @@ -0,0 +1,27 @@ +# U-boot - config.mk +# +# Copyright (c) 2005-2007 Analog Devices Inc. +# +# (C) Copyright 2000-2004 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301 USA +# + +PLATFORM_RELFLAGS += -mcpu=bf537 -ffixed-P5 diff --git a/cpu/bf537/cpu.c b/cpu/bf537/cpu.c new file mode 100644 index 0000000..62f603b --- /dev/null +++ b/cpu/bf537/cpu.c @@ -0,0 +1,227 @@ +/* + * U-boot - cpu.c CPU specific functions + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/blackfin.h> +#include <command.h> +#include <asm/entry.h> +#include <asm/cplb.h> +#include <asm/io.h> + +#define CACHE_ON 1 +#define CACHE_OFF 0 + +extern unsigned int icplb_table[page_descriptor_table_size][2]; +extern unsigned int dcplb_table[page_descriptor_table_size][2]; + +int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + __asm__ __volatile__("cli r3;" "P0 = %0;" "JUMP (P0);"::"r"(L1_ISRAM) + ); + + return 0; +} + +/* These functions are just used to satisfy the linker */ +int cpu_init(void) +{ + return 0; +} + +int cleanup_before_linux(void) +{ + return 0; +} + +void icache_enable(void) +{ + unsigned int *I0, *I1; + int i, j = 0; + + if ((*pCHIPID >> 28) < 2) + return; + + /* Before enable icache, disable it first */ + icache_disable(); + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + + /* make sure the locked ones go in first */ + for (i = 0; i < page_descriptor_table_size; i++) { + if (CPLB_LOCK & icplb_table[i][1]) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + icplb_table[i][0], icplb_table[i][1]); + *I0++ = icplb_table[i][0]; + *I1++ = icplb_table[i][1]; + j++; + } + } + + for (i = 0; i < page_descriptor_table_size; i++) { + if (!(CPLB_LOCK & icplb_table[i][1])) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + icplb_table[i][0], icplb_table[i][1]); + *I0++ = icplb_table[i][0]; + *I1++ = icplb_table[i][1]; + j++; + if (j == 16) { + break; + } + } + } + + /* Fill the rest with invalid entry */ + if (j <= 15) { + for (; j < 16; j++) { + debug("filling %i with 0", j); + *I1++ = 0x0; + } + + } + + cli(); + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB; + sync(); + sti(); +} + +void icache_disable(void) +{ + if ((*pCHIPID >> 28) < 2) + return; + cli(); + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB); + sync(); + sti(); +} + +int icache_status(void) +{ + unsigned int value; + value = *(unsigned int *)IMEM_CONTROL; + + if (value & (IMC | ENICPLB)) + return CACHE_ON; + else + return CACHE_OFF; +} + +void dcache_enable(void) +{ + unsigned int *I0, *I1; + unsigned int temp; + int i, j = 0; + + /* Before enable dcache, disable it first */ + dcache_disable(); + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + + /* make sure the locked ones go in first */ + for (i = 0; i < page_descriptor_table_size; i++) { + if (CPLB_LOCK & dcplb_table[i][1]) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + *I0++ = dcplb_table[i][0]; + *I1++ = dcplb_table[i][1]; + j++; + } else { + debug("skip %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + } + } + + for (i = 0; i < page_descriptor_table_size; i++) { + if (!(CPLB_LOCK & dcplb_table[i][1])) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + *I0++ = dcplb_table[i][0]; + *I1++ = dcplb_table[i][1]; + j++; + if (j == 16) { + break; + } + } + } + + /* Fill the rest with invalid entry */ + if (j <= 15) { + for (; j < 16; j++) { + debug("filling %i with 0", j); + *I1++ = 0x0; + } + } + + cli(); + temp = *(unsigned int *)DMEM_CONTROL; + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL = + ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | temp; + sync(); + sti(); +} + +void dcache_disable(void) +{ + unsigned int *I0, *I1; + int i; + + cli(); + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL &= + ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + sync(); + sti(); + + /* after disable dcache, + * clear it so we don't confuse the next application + */ + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + + for (i = 0; i < 16; i++) { + *I0++ = 0x0; + *I1++ = 0x0; + } +} + +int dcache_status(void) +{ + unsigned int value; + value = *(unsigned int *)DMEM_CONTROL; + + if (value & (ENDCPLB)) + return CACHE_ON; + else + return CACHE_OFF; +} diff --git a/cpu/bf537/cpu.h b/cpu/bf537/cpu.h new file mode 100644 index 0000000..b6b73b1 --- /dev/null +++ b/cpu/bf537/cpu.h @@ -0,0 +1,66 @@ +/* + * U-boot - cpu.h + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef _CPU_H_ +#define _CPU_H_ + +#include <command.h> + +#define INTERNAL_IRQS (32) +#define NUM_IRQ_NODES 16 +#define DEF_INTERRUPT_FLAGS 1 +#define MAX_TIM_LOAD 0xFFFFFFFF + +void blackfin_irq_panic(int reason, struct pt_regs *reg); +extern void dump(struct pt_regs *regs); +void display_excp(void); +asmlinkage void evt_nmi(void); +asmlinkage void evt_exception(void); +asmlinkage void trap(void); +asmlinkage void evt_ivhw(void); +asmlinkage void evt_rst(void); +asmlinkage void evt_timer(void); +asmlinkage void evt_evt7(void); +asmlinkage void evt_evt8(void); +asmlinkage void evt_evt9(void); +asmlinkage void evt_evt10(void); +asmlinkage void evt_evt11(void); +asmlinkage void evt_evt12(void); +asmlinkage void evt_evt13(void); +asmlinkage void evt_soft_int1(void); +asmlinkage void evt_system_call(void); +void blackfin_irq_panic(int reason, struct pt_regs *regs); +void blackfin_free_irq(unsigned int irq, void *dev_id); +void call_isr(int irq, struct pt_regs *fp); +void blackfin_do_irq(int vec, struct pt_regs *fp); +void blackfin_init_IRQ(void); +void blackfin_enable_irq(unsigned int irq); +void blackfin_disable_irq(unsigned int irq); +extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); +int blackfin_request_irq(unsigned int irq, + void (*handler) (int, void *, struct pt_regs *), + unsigned long flags, const char *devname, + void *dev_id); +void timer_init(void); +#endif diff --git a/cpu/bf537/flush.S b/cpu/bf537/flush.S new file mode 100644 index 0000000..fbd26cc --- /dev/null +++ b/cpu/bf537/flush.S @@ -0,0 +1,403 @@ +/* Copyright (C) 2003-2007 Analog Devices Inc. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. + */ + +#define ASSEMBLY + +#include <asm/linkage.h> +#include <asm/cplb.h> +#include <config.h> +#include <asm/blackfin.h> + +.text + +/* This is an external function being called by the user + * application through __flush_cache_all. Currently this function + * serves the purpose of flushing all the pending writes in + * in the instruction cache. + */ + +ENTRY(_flush_instruction_cache) + [--SP] = ( R7:6, P5:4 ); + LINK 12; + SP += -12; + P5.H = (ICPLB_ADDR0 >> 16); + P5.L = (ICPLB_ADDR0 & 0xFFFF); + P4.H = (ICPLB_DATA0 >> 16); + P4.L = (ICPLB_DATA0 & 0xFFFF); + R7 = CPLB_VALID | CPLB_L1_CHBL; + R6 = 16; +inext: R0 = [P5++]; + R1 = [P4++]; + [--SP] = RETS; + CALL _icplb_flush; /* R0 = page, R1 = data*/ + RETS = [SP++]; +iskip: R6 += -1; + CC = R6; + IF CC JUMP inext; + SSYNC; + SP += 12; + UNLINK; + ( R7:6, P5:4 ) = [SP++]; + RTS; + +/* This is an internal function to flush all pending + * writes in the cache associated with a particular ICPLB. + * + * R0 - page's start address + * R1 - CPLB's data field. + */ + +.align 2 +ENTRY(_icplb_flush) + [--SP] = ( R7:0, P5:0 ); + [--SP] = LC0; + [--SP] = LT0; + [--SP] = LB0; + [--SP] = LC1; + [--SP] = LT1; + [--SP] = LB1; + + /* If it's a 1K or 4K page, then it's quickest to + * just systematically flush all the addresses in + * the page, regardless of whether they're in the + * cache, or dirty. If it's a 1M or 4M page, there + * are too many addresses, and we have to search the + * cache for lines corresponding to the page. + */ + + CC = BITTST(R1, 17); /* 1MB or 4MB */ + IF !CC JUMP iflush_whole_page; + + /* We're only interested in the page's size, so extract + * this from the CPLB (bits 17:16), and scale to give an + * offset into the page_size and page_prefix tables. + */ + + R1 <<= 14; + R1 >>= 30; + R1 <<= 2; + + /* We can also determine the sub-bank used, because this is + * taken from bits 13:12 of the address. + */ + + R3 = ((12<<8)|2); /* Extraction pattern */ + nop; /* Anamoly 05000209 */ + R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits */ + + /* Save in extraction pattern for later deposit. */ + R3.H = R4.L << 0; + + /* So: + * R0 = Page start + * R1 = Page length (actually, offset into size/prefix tables) + * R3 = sub-bank deposit values + * + * The cache has 2 Ways, and 64 sets, so we iterate through + * the sets, accessing the tag for each Way, for our Bank and + * sub-bank, looking for dirty, valid tags that match our + * address prefix. + */ + + P5.L = (ITEST_COMMAND & 0xFFFF); + P5.H = (ITEST_COMMAND >> 16); + P4.L = (ITEST_DATA0 & 0xFFFF); + P4.H = (ITEST_DATA0 >> 16); + + P0.L = page_prefix_table; + P0.H = page_prefix_table; + P1 = R1; + R5 = 0; /* Set counter*/ + P0 = P1 + P0; + R4 = [P0]; /* This is the address prefix*/ + + /* We're reading (bit 1==0) the tag (bit 2==0), and we + * don't care about which double-word, since we're only + * fetching tags, so we only have to set Set, Bank, + * Sub-bank and Way. + */ + + P2 = 4; + LSETUP (ifs1, ife1) LC1 = P2; +ifs1: P0 = 32; /* iterate over all sets*/ + LSETUP (ifs0, ife0) LC0 = P0; +ifs0: R6 = R5 << 5; /* Combine set*/ + R6.H = R3.H << 0 ; /* and sub-bank*/ + [P5] = R6; /* Issue Command*/ + SSYNC; /* CSYNC will not work here :(*/ + R7 = [P4]; /* and read Tag.*/ + CC = BITTST(R7, 0); /* Check if valid*/ + IF !CC JUMP ifskip; /* and skip if not.*/ + + /* Compare against the page address. First, plant bits 13:12 + * into the tag, since those aren't part of the returned data. + */ + + R7 = DEPOSIT(R7, R3); /* set 13:12*/ + R1 = R7 & R4; /* Mask off lower bits*/ + CC = R1 == R0; /* Compare against page start.*/ + IF !CC JUMP ifskip; /* Skip it if it doesn't match.*/ + + /* Tag address matches against page, so this is an entry + * we must flush. + */ + + R7 >>= 10; /* Mask off the non-address bits*/ + R7 <<= 10; + P3 = R7; + IFLUSH [P3]; /* And flush the entry*/ +ifskip: +ife0: R5 += 1; /* Advance to next Set*/ +ife1: NOP; + +ifinished: + SSYNC; /* Ensure the data gets out to mem.*/ + + /*Finished. Restore context.*/ + LB1 = [SP++]; + LT1 = [SP++]; + LC1 = [SP++]; + LB0 = [SP++]; + LT0 = [SP++]; + LC0 = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +iflush_whole_page: + /* It's a 1K or 4K page, so quicker to just flush the + * entire page. + */ + + P1 = 32; /* For 1K pages*/ + P2 = P1 << 2; /* For 4K pages*/ + P0 = R0; /* Start of page*/ + CC = BITTST(R1, 16); /* Whether 1K or 4K*/ + IF CC P1 = P2; + P1 += -1; /* Unroll one iteration*/ + SSYNC; + IFLUSH [P0++]; /* because CSYNC can't end loops.*/ + LSETUP (isall, ieall) LC0 = P1; +isall:IFLUSH [P0++]; +ieall: NOP; + SSYNC; + JUMP ifinished; + +/* This is an external function being called by the user + * application through __flush_cache_all. Currently this function + * serves the purpose of flushing all the pending writes in + * in the data cache. + */ + +ENTRY(_flush_data_cache) + [--SP] = ( R7:6, P5:4 ); + LINK 12; + SP += -12; + P5.H = (DCPLB_ADDR0 >> 16); + P5.L = (DCPLB_ADDR0 & 0xFFFF); + P4.H = (DCPLB_DATA0 >> 16); + P4.L = (DCPLB_DATA0 & 0xFFFF); + R7 = CPLB_VALID | CPLB_L1_CHBL | CPLB_DIRTY (Z); + R6 = 16; +next: R0 = [P5++]; + R1 = [P4++]; + CC = BITTST(R1, 14); /* Is it write-through?*/ + IF CC JUMP skip; /* If so, ignore it.*/ + R2 = R1 & R7; /* Is it a dirty, cached page?*/ + CC = R2; + IF !CC JUMP skip; /* If not, ignore it.*/ + [--SP] = RETS; + CALL _dcplb_flush; /* R0 = page, R1 = data*/ + RETS = [SP++]; +skip: R6 += -1; + CC = R6; + IF CC JUMP next; + SSYNC; + SP += 12; + UNLINK; + ( R7:6, P5:4 ) = [SP++]; + RTS; + +/* This is an internal function to flush all pending + * writes in the cache associated with a particular DCPLB. + * + * R0 - page's start address + * R1 - CPLB's data field. + */ + +.align 2 +ENTRY(_dcplb_flush) + [--SP] = ( R7:0, P5:0 ); + [--SP] = LC0; + [--SP] = LT0; + [--SP] = LB0; + [--SP] = LC1; + [--SP] = LT1; + [--SP] = LB1; + + /* If it's a 1K or 4K page, then it's quickest to + * just systematically flush all the addresses in + * the page, regardless of whether they're in the + * cache, or dirty. If it's a 1M or 4M page, there + * are too many addresses, and we have to search the + * cache for lines corresponding to the page. + */ + + CC = BITTST(R1, 17); /* 1MB or 4MB */ + IF !CC JUMP dflush_whole_page; + + /* We're only interested in the page's size, so extract + * this from the CPLB (bits 17:16), and scale to give an + * offset into the page_size and page_prefix tables. + */ + + R1 <<= 14; + R1 >>= 30; + R1 <<= 2; + + /* The page could be mapped into Bank A or Bank B, depending + * on (a) whether both banks are configured as cache, and + * (b) on whether address bit A[x] is set. x is determined + * by DCBS in DMEM_CONTROL + */ + + R2 = 0; /* Default to Bank A (Bank B would be 1)*/ + + P0.L = (DMEM_CONTROL & 0xFFFF); + P0.H = (DMEM_CONTROL >> 16); + + R3 = [P0]; /* If Bank B is not enabled as cache*/ + CC = BITTST(R3, 2); /* then Bank A is our only option.*/ + IF CC JUMP bank_chosen; + + R4 = 1<<14; /* If DCBS==0, use A[14].*/ + R5 = R4 << 7; /* If DCBS==1, use A[23];*/ + CC = BITTST(R3, 4); + IF CC R4 = R5; /* R4 now has either bit 14 or bit 23 set.*/ + R5 = R0 & R4; /* Use it to test the Page address*/ + CC = R5; /* and if that bit is set, we use Bank B,*/ + R2 = CC; /* else we use Bank A.*/ + R2 <<= 23; /* The Bank selection's at posn 23.*/ + +bank_chosen: + + /* We can also determine the sub-bank used, because this is + * taken from bits 13:12 of the address. + */ + + R3 = ((12<<8)|2); /* Extraction pattern */ + nop; /*Anamoly 05000209*/ + R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/ + /* Save in extraction pattern for later deposit.*/ + R3.H = R4.L << 0; + + /* So: + * R0 = Page start + * R1 = Page length (actually, offset into size/prefix tables) + * R2 = Bank select mask + * R3 = sub-bank deposit values + * + * The cache has 2 Ways, and 64 sets, so we iterate through + * the sets, accessing the tag for each Way, for our Bank and + * sub-bank, looking for dirty, valid tags that match our + * address prefix. + */ + + P5.L = (DTEST_COMMAND & 0xFFFF); + P5.H = (DTEST_COMMAND >> 16); + P4.L = (DTEST_DATA0 & 0xFFFF); + P4.H = (DTEST_DATA0 >> 16); + + P0.L = page_prefix_table; + P0.H = page_prefix_table; + P1 = R1; + R5 = 0; /* Set counter*/ + P0 = P1 + P0; + R4 = [P0]; /* This is the address prefix*/ + + + /* We're reading (bit 1==0) the tag (bit 2==0), and we + * don't care about which double-word, since we're only + * fetching tags, so we only have to set Set, Bank, + * Sub-bank and Way. + */ + + P2 = 2; + LSETUP (fs1, fe1) LC1 = P2; +fs1: P0 = 64; /* iterate over all sets*/ + LSETUP (fs0, fe0) LC0 = P0; +fs0: R6 = R5 << 5; /* Combine set*/ + R6.H = R3.H << 0 ; /* and sub-bank*/ + R6 = R6 | R2; /* and Bank. Leave Way==0 at first.*/ + BITSET(R6,14); + [P5] = R6; /* Issue Command*/ + SSYNC; + R7 = [P4]; /* and read Tag.*/ + CC = BITTST(R7, 0); /* Check if valid*/ + IF !CC JUMP fskip; /* and skip if not.*/ + CC = BITTST(R7, 1); /* Check if dirty*/ + IF !CC JUMP fskip; /* and skip if not.*/ + + /* Compare against the page address. First, plant bits 13:12 + * into the tag, since those aren't part of the returned data. + */ + + R7 = DEPOSIT(R7, R3); /* set 13:12*/ + R1 = R7 & R4; /* Mask off lower bits*/ + CC = R1 == R0; /* Compare against page start.*/ + IF !CC JUMP fskip; /* Skip it if it doesn't match.*/ + + /* Tag address matches against page, so this is an entry + * we must flush. + */ + + R7 >>= 10; /* Mask off the non-address bits*/ + R7 <<= 10; + P3 = R7; + SSYNC; + FLUSHINV [P3]; /* And flush the entry*/ +fskip: +fe0: R5 += 1; /* Advance to next Set*/ +fe1: BITSET(R2, 26); /* Go to next Way.*/ + +dfinished: + SSYNC; /* Ensure the data gets out to mem.*/ + + /*Finished. Restore context.*/ + LB1 = [SP++]; + LT1 = [SP++]; + LC1 = [SP++]; + LB0 = [SP++]; + LT0 = [SP++]; + LC0 = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +dflush_whole_page: + + /* It's a 1K or 4K page, so quicker to just flush the + * entire page. + */ + + P1 = 32; /* For 1K pages*/ + P2 = P1 << 2; /* For 4K pages*/ + P0 = R0; /* Start of page*/ + CC = BITTST(R1, 16); /* Whether 1K or 4K*/ + IF CC P1 = P2; + P1 += -1; /* Unroll one iteration*/ + SSYNC; + FLUSHINV [P0++]; /* because CSYNC can't end loops.*/ + LSETUP (eall, eall) LC0 = P1; +eall: FLUSHINV [P0++]; + SSYNC; + JUMP dfinished; + +.align 4; +page_prefix_table: +.byte4 0xFFFFFC00; /* 1K */ +.byte4 0xFFFFF000; /* 4K */ +.byte4 0xFFF00000; /* 1M */ +.byte4 0xFFC00000; /* 4M */ +.page_prefix_table.end: diff --git a/cpu/bf537/i2c.c b/cpu/bf537/i2c.c new file mode 100644 index 0000000..3b0d026 --- /dev/null +++ b/cpu/bf537/i2c.c @@ -0,0 +1,460 @@ +/**************************************************************** + * $ID: i2c.c 24 Oct 2006 12:00:00 +0800 $ * + * * + * Description: * + * * + * Maintainer: sonicz <sonic.zhang@analog.com> * + * * + * CopyRight (c) 2006 Analog Device * + * All rights reserved. * + * * + * This file is free software; * + * you are free to modify and/or redistribute it * + * under the terms of the GNU General Public Licence (GPL).* + * * + ****************************************************************/ + +#include <common.h> + +#ifdef CONFIG_HARD_I2C + +#include <asm/blackfin.h> +#include <i2c.h> +#include <asm/io.h> + +#define bfin_read16(addr) ({ unsigned __v; \ + __asm__ __volatile__ (\ + "%0 = w[%1] (z);\n\t"\ + : "=d"(__v) : "a"(addr)); (unsigned short)__v; }) + +#define bfin_write16(addr,val) ({\ + __asm__ __volatile__ (\ + "w[%0] = %1;\n\t"\ + : : "a"(addr) , "d"(val) : "memory");}) + +/* Two-Wire Interface (0xFFC01400 - 0xFFC014FF) */ +#define bfin_read_TWI_CLKDIV() bfin_read16(TWI_CLKDIV) +#define bfin_write_TWI_CLKDIV(val) bfin_write16(TWI_CLKDIV,val) +#define bfin_read_TWI_CONTROL() bfin_read16(TWI_CONTROL) +#define bfin_write_TWI_CONTROL(val) bfin_write16(TWI_CONTROL,val) +#define bfin_read_TWI_SLAVE_CTL() bfin_read16(TWI_SLAVE_CTL) +#define bfin_write_TWI_SLAVE_CTL(val) bfin_write16(TWI_SLAVE_CTL,val) +#define bfin_read_TWI_SLAVE_STAT() bfin_read16(TWI_SLAVE_STAT) +#define bfin_write_TWI_SLAVE_STAT(val) bfin_write16(TWI_SLAVE_STAT,val) +#define bfin_read_TWI_SLAVE_ADDR() bfin_read16(TWI_SLAVE_ADDR) +#define bfin_write_TWI_SLAVE_ADDR(val) bfin_write16(TWI_SLAVE_ADDR,val) +#define bfin_read_TWI_MASTER_CTL() bfin_read16(TWI_MASTER_CTL) +#define bfin_write_TWI_MASTER_CTL(val) bfin_write16(TWI_MASTER_CTL,val) +#define bfin_read_TWI_MASTER_STAT() bfin_read16(TWI_MASTER_STAT) +#define bfin_write_TWI_MASTER_STAT(val) bfin_write16(TWI_MASTER_STAT,val) +#define bfin_read_TWI_MASTER_ADDR() bfin_read16(TWI_MASTER_ADDR) +#define bfin_write_TWI_MASTER_ADDR(val) bfin_write16(TWI_MASTER_ADDR,val) +#define bfin_read_TWI_INT_STAT() bfin_read16(TWI_INT_STAT) +#define bfin_write_TWI_INT_STAT(val) bfin_write16(TWI_INT_STAT,val) +#define bfin_read_TWI_INT_MASK() bfin_read16(TWI_INT_MASK) +#define bfin_write_TWI_INT_MASK(val) bfin_write16(TWI_INT_MASK,val) +#define bfin_read_TWI_FIFO_CTL() bfin_read16(TWI_FIFO_CTL) +#define bfin_write_TWI_FIFO_CTL(val) bfin_write16(TWI_FIFO_CTL,val) +#define bfin_read_TWI_FIFO_STAT() bfin_read16(TWI_FIFO_STAT) +#define bfin_write_TWI_FIFO_STAT(val) bfin_write16(TWI_FIFO_STAT,val) +#define bfin_read_TWI_XMT_DATA8() bfin_read16(TWI_XMT_DATA8) +#define bfin_write_TWI_XMT_DATA8(val) bfin_write16(TWI_XMT_DATA8,val) +#define bfin_read_TWI_XMT_DATA16() bfin_read16(TWI_XMT_DATA16) +#define bfin_write_TWI_XMT_DATA16(val) bfin_write16(TWI_XMT_DATA16,val) +#define bfin_read_TWI_RCV_DATA8() bfin_read16(TWI_RCV_DATA8) +#define bfin_write_TWI_RCV_DATA8(val) bfin_write16(TWI_RCV_DATA8,val) +#define bfin_read_TWI_RCV_DATA16() bfin_read16(TWI_RCV_DATA16) +#define bfin_write_TWI_RCV_DATA16(val) bfin_write16(TWI_RCV_DATA16,val) + +#ifdef DEBUG_I2C +#define PRINTD(fmt,args...) do { \ + DECLARE_GLOBAL_DATA_PTR; \ + if (gd->have_console) \ + printf(fmt ,##args); \ + } while (0) +#else +#define PRINTD(fmt,args...) +#endif + +#ifndef CONFIG_TWICLK_KHZ +#define CONFIG_TWICLK_KHZ 50 +#endif + +/* All transfers are described by this data structure */ +struct i2c_msg { + u16 addr; /* slave address */ + u16 flags; +#define I2C_M_STOP 0x2 +#define I2C_M_RD 0x1 + u16 len; /* msg length */ + u8 *buf; /* pointer to msg data */ +}; + +/** + * i2c_reset: - reset the host controller + * + */ + +static void i2c_reset(void) +{ + /* Disable TWI */ + bfin_write_TWI_CONTROL(0); + sync(); + + /* Set TWI internal clock as 10MHz */ + bfin_write_TWI_CONTROL(((get_sclk() / 1024 / 1024 + 5) / 10) & 0x7F); + + /* Set Twi interface clock as specified */ + if (CONFIG_TWICLK_KHZ > 400) + bfin_write_TWI_CLKDIV(((5 * 1024 / 400) << 8) | ((5 * 1024 / + 400) & 0xFF)); + else + bfin_write_TWI_CLKDIV(((5 * 1024 / + CONFIG_TWICLK_KHZ) << 8) | ((5 * 1024 / + CONFIG_TWICLK_KHZ) + & 0xFF)); + + /* Enable TWI */ + bfin_write_TWI_CONTROL(bfin_read_TWI_CONTROL() | TWI_ENA); + sync(); +} + +int wait_for_completion(struct i2c_msg *msg, int timeout_count) +{ + unsigned short twi_int_stat; + unsigned short mast_stat; + int i; + + for (i = 0; i < timeout_count; i++) { + twi_int_stat = bfin_read_TWI_INT_STAT(); + mast_stat = bfin_read_TWI_MASTER_STAT(); + + if (XMTSERV & twi_int_stat) { + /* Transmit next data */ + if (msg->len > 0) { + bfin_write_TWI_XMT_DATA8(*(msg->buf++)); + msg->len--; + } else if (msg->flags & I2C_M_STOP) + bfin_write_TWI_MASTER_CTL + (bfin_read_TWI_MASTER_CTL() | STOP); + sync(); + /* Clear status */ + bfin_write_TWI_INT_STAT(XMTSERV); + sync(); + i = 0; + } + if (RCVSERV & twi_int_stat) { + if (msg->len > 0) { + /* Receive next data */ + *(msg->buf++) = bfin_read_TWI_RCV_DATA8(); + msg->len--; + } else if (msg->flags & I2C_M_STOP) { + bfin_write_TWI_MASTER_CTL + (bfin_read_TWI_MASTER_CTL() | STOP); + sync(); + } + /* Clear interrupt source */ + bfin_write_TWI_INT_STAT(RCVSERV); + sync(); + i = 0; + } + if (MERR & twi_int_stat) { + bfin_write_TWI_INT_STAT(MERR); + bfin_write_TWI_INT_MASK(0); + bfin_write_TWI_MASTER_STAT(0x3e); + bfin_write_TWI_MASTER_CTL(0); + sync(); + /* + * if both err and complete int stats are set, + * return proper results. + */ + if (MCOMP & twi_int_stat) { + bfin_write_TWI_INT_STAT(MCOMP); + bfin_write_TWI_INT_MASK(0); + bfin_write_TWI_MASTER_CTL(0); + sync(); + /* + * If it is a quick transfer, + * only address bug no data, not an err. + */ + if (msg->len == 0 && mast_stat & BUFRDERR) + return 0; + /* + * If address not acknowledged return -3, + * else return 0. + */ + else if (!(mast_stat & ANAK)) + return 0; + else + return -3; + } + return -1; + } + if (MCOMP & twi_int_stat) { + bfin_write_TWI_INT_STAT(MCOMP); + sync(); + bfin_write_TWI_INT_MASK(0); + bfin_write_TWI_MASTER_CTL(0); + sync(); + return 0; + } + } + if (msg->flags & I2C_M_RD) + return -4; + else + return -2; +} + +/** + * i2c_transfer: - Transfer one byte over the i2c bus + * + * This function can tranfer a byte over the i2c bus in both directions. + * It is used by the public API functions. + * + * @return: 0: transfer successful + * -1: transfer fail + * -2: transmit timeout + * -3: ACK missing + * -4: receive timeout + * -5: controller not ready + */ +int i2c_transfer(struct i2c_msg *msg) +{ + int ret = 0; + int timeout_count = 10000; + int len = msg->len; + + if (!(bfin_read_TWI_CONTROL() & TWI_ENA)) { + ret = -5; + goto transfer_error; + } + + while (bfin_read_TWI_MASTER_STAT() & BUSBUSY) ; + + /* Set Transmit device address */ + bfin_write_TWI_MASTER_ADDR(msg->addr); + + /* + * FIFO Initiation. + * Data in FIFO should be discarded before start a new operation. + */ + bfin_write_TWI_FIFO_CTL(0x3); + sync(); + bfin_write_TWI_FIFO_CTL(0); + sync(); + + if (!(msg->flags & I2C_M_RD)) { + /* Transmit first data */ + if (msg->len > 0) { + PRINTD("1 in i2c_transfer: buf=%d, len=%d\n", *msg->buf, + len); + bfin_write_TWI_XMT_DATA8(*(msg->buf++)); + msg->len--; + sync(); + } + } + + /* clear int stat */ + bfin_write_TWI_INT_STAT(MERR | MCOMP | XMTSERV | RCVSERV); + + /* Interrupt mask . Enable XMT, RCV interrupt */ + bfin_write_TWI_INT_MASK(MCOMP | MERR | + ((msg->flags & I2C_M_RD) ? RCVSERV : XMTSERV)); + sync(); + + if (len > 0 && len <= 255) + bfin_write_TWI_MASTER_CTL((len << 6)); + else if (msg->len > 255) { + bfin_write_TWI_MASTER_CTL((0xff << 6)); + msg->flags &= I2C_M_STOP; + } else + bfin_write_TWI_MASTER_CTL(0); + + /* Master enable */ + bfin_write_TWI_MASTER_CTL(bfin_read_TWI_MASTER_CTL() | MEN | + ((msg->flags & I2C_M_RD) + ? MDIR : 0) | ((CONFIG_TWICLK_KHZ > + 100) ? FAST : 0)); + sync(); + + ret = wait_for_completion(msg, timeout_count); + PRINTD("3 in i2c_transfer: ret=%d\n", ret); + +transfer_error: + switch (ret) { + case 1: + PRINTD(("i2c_transfer: error: transfer fail\n")); + break; + case 2: + PRINTD(("i2c_transfer: error: transmit timeout\n")); + break; + case 3: + PRINTD(("i2c_transfer: error: ACK missing\n")); + break; + case 4: + PRINTD(("i2c_transfer: error: receive timeout\n")); + break; + case 5: + PRINTD(("i2c_transfer: error: controller not ready\n")); + i2c_reset(); + break; + default: + break; + } + return ret; + +} + +/* ---------------------------------------------------------------------*/ +/* API Functions */ +/* ---------------------------------------------------------------------*/ + +void i2c_init(int speed, int slaveaddr) +{ + i2c_reset(); +} + +/** + * i2c_probe: - Test if a chip answers for a given i2c address + * + * @chip: address of the chip which is searched for + * @return: 0 if a chip was found, -1 otherwhise + */ + +int i2c_probe(uchar chip) +{ + struct i2c_msg msg; + u8 probebuf; + + i2c_reset(); + + probebuf = 0; + msg.addr = chip; + msg.flags = 0; + msg.len = 1; + msg.buf = &probebuf; + if (i2c_transfer(&msg)) + return -1; + + msg.addr = chip; + msg.flags = I2C_M_RD; + msg.len = 1; + msg.buf = &probebuf; + if (i2c_transfer(&msg)) + return -1; + + return 0; +} + +/** + * i2c_read: - Read multiple bytes from an i2c device + * + * chip: I2C chip address, range 0..127 + * addr: Memory (register) address within the chip + * alen: Number of bytes to use for addr (typically 1, 2 for larger + * memories, 0 for register type devices with only one + * register) + * buffer: Where to read/write the data + * len: How many bytes to read/write + * + * Returns: 0 on success, not 0 on failure + */ + +int i2c_read(uchar chip, uint addr, int alen, uchar * buffer, int len) +{ + struct i2c_msg msg; + u8 addr_bytes[3]; /* lowest...highest byte of data address */ + + PRINTD("i2c_read: chip=0x%x, addr=0x%x, alen=0x%x, len=0x%x\n", chip, + addr, alen, len); + + if (alen > 0) { + addr_bytes[0] = (u8) ((addr >> 0) & 0x000000FF); + addr_bytes[1] = (u8) ((addr >> 8) & 0x000000FF); + addr_bytes[2] = (u8) ((addr >> 16) & 0x000000FF); + msg.addr = chip; + msg.flags = 0; + msg.len = alen; + msg.buf = addr_bytes; + if (i2c_transfer(&msg)) + return -1; + } + + /* start read sequence */ + PRINTD(("i2c_read: start read sequence\n")); + msg.addr = chip; + msg.flags = I2C_M_RD; + msg.len = len; + msg.buf = buffer; + if (i2c_transfer(&msg)) + return -1; + + return 0; +} + +/** + * i2c_write: - Write multiple bytes to an i2c device + * + * chip: I2C chip address, range 0..127 + * addr: Memory (register) address within the chip + * alen: Number of bytes to use for addr (typically 1, 2 for larger + * memories, 0 for register type devices with only one + * register) + * buffer: Where to read/write the data + * len: How many bytes to read/write + * + * Returns: 0 on success, not 0 on failure + */ + +int i2c_write(uchar chip, uint addr, int alen, uchar * buffer, int len) +{ + struct i2c_msg msg; + u8 addr_bytes[3]; /* lowest...highest byte of data address */ + + PRINTD + ("i2c_write: chip=0x%x, addr=0x%x, alen=0x%x, len=0x%x, buf0=0x%x\n", + chip, addr, alen, len, buffer[0]); + + /* chip address write */ + if (alen > 0) { + addr_bytes[0] = (u8) ((addr >> 0) & 0x000000FF); + addr_bytes[1] = (u8) ((addr >> 8) & 0x000000FF); + addr_bytes[2] = (u8) ((addr >> 16) & 0x000000FF); + msg.addr = chip; + msg.flags = 0; + msg.len = alen; + msg.buf = addr_bytes; + if (i2c_transfer(&msg)) + return -1; + } + + /* start read sequence */ + PRINTD(("i2c_write: start write sequence\n")); + msg.addr = chip; + msg.flags = 0; + msg.len = len; + msg.buf = buffer; + if (i2c_transfer(&msg)) + return -1; + + return 0; + +} + +uchar i2c_reg_read(uchar chip, uchar reg) +{ + uchar buf; + + PRINTD("i2c_reg_read: chip=0x%02x, reg=0x%02x\n", chip, reg); + i2c_read(chip, reg, 0, &buf, 1); + return (buf); +} + +void i2c_reg_write(uchar chip, uchar reg, uchar val) +{ + PRINTD("i2c_reg_write: chip=0x%02x, reg=0x%02x, val=0x%02x\n", chip, + reg, val); + i2c_write(chip, reg, 0, &val, 1); +} + +#endif /* CONFIG_HARD_I2C */ diff --git a/cpu/bf537/init_sdram.S b/cpu/bf537/init_sdram.S new file mode 100644 index 0000000..897a589 --- /dev/null +++ b/cpu/bf537/init_sdram.S @@ -0,0 +1,174 @@ +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> +#include <asm/mem_init.h> +.global init_sdram; + +#if (BFIN_BOOT_MODE != BF537_UART_BOOT) +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif +#endif + +init_sdram: + [--SP] = ASTAT; + [--SP] = RETS; + [--SP] = (R7:0); + [--SP] = (P5:0); + +#if (BFIN_BOOT_MODE == BF537_SPI_MASTER_BOOT) + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + w[p0] = r0.l; + SSYNC; + + p0.h = hi(SPI_BAUD); + p0.l = lo(SPI_BAUD); + r0.l = CONFIG_SPI_BAUD; + w[p0] = r0.l; + SSYNC; +#endif + +#if (BFIN_BOOT_MODE != BF537_UART_BOOT) + +#ifdef CONFIG_BF537 + /* Enable PHY CLK buffer output */ + p0.h = hi(VR_CTL); + p0.l = lo(VR_CTL); + r0.l = w[p0]; + bitset(r0, 14); + w[p0] = r0.l; + ssync; +#endif + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; +#endif + + /* + * Now, Initialize the SDRAM, + * start with the SDRAM Refresh Rate Control Register + */ + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Memory Bank Control Register - bank specific parameters + */ + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Global Control Register - global programmable parameters + * Disable self-refresh + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + + /* + * Check if SDRAM is already powered up, if it is, enable self-refresh + */ + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump skip; + NOP; + BITSET (R0, 23); +skip: + [P2] = R0; + SSYNC; + + /* Write in the new value in the register */ + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + [P2] = R0; + SSYNC; + nop; + + (P5:0) = [SP++]; + (R7:0) = [SP++]; + RETS = [SP++]; + ASTAT = [SP++]; + RTS; diff --git a/cpu/bf537/init_sdram_bootrom_initblock.S b/cpu/bf537/init_sdram_bootrom_initblock.S new file mode 100644 index 0000000..f9adbb9 --- /dev/null +++ b/cpu/bf537/init_sdram_bootrom_initblock.S @@ -0,0 +1,199 @@ +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> +#include <asm/mem_init.h> +.global init_sdram; + +#if (BFIN_BOOT_MODE != BF537_UART_BOOT) +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif +#endif + +init_sdram: + [--SP] = ASTAT; + [--SP] = RETS; + [--SP] = (R7:0); + [--SP] = (P5:0); + +#if (BFIN_BOOT_MODE == BF537_SPI_MASTER_BOOT) + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + w[p0] = r0.l; + SSYNC; + + p0.h = hi(SPI_BAUD); + p0.l = lo(SPI_BAUD); + r0.l = CONFIG_SPI_BAUD_INITBLOCK; + w[p0] = r0.l; + SSYNC; +#endif + +#if (BFIN_BOOT_MODE != BF537_UART_BOOT) + +#ifdef CONFIG_BF537 + /* Enable PHY CLK buffer output */ + p0.h = hi(VR_CTL); + p0.l = lo(VR_CTL); + r0.l = w[p0]; + bitset(r0, 14); + w[p0] = r0.l; + ssync; +#endif + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; +#endif + + /* + * We now are running at speed, time to set the Async mem bank wait states + * This will speed up execution, since we are normally running from FLASH. + */ + + p2.h = (EBIU_AMBCTL1 >> 16); + p2.l = (EBIU_AMBCTL1 & 0xFFFF); + r0.h = (AMBCTL1VAL >> 16); + r0.l = (AMBCTL1VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMBCTL0 >> 16); + p2.l = (EBIU_AMBCTL0 & 0xFFFF); + r0.h = (AMBCTL0VAL >> 16); + r0.l = (AMBCTL0VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMGCTL >> 16); + p2.l = (EBIU_AMGCTL & 0xffff); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* + * Now, Initialize the SDRAM, + * start with the SDRAM Refresh Rate Control Register + */ + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Memory Bank Control Register - bank specific parameters + */ + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Global Control Register - global programmable parameters + * Disable self-refresh + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + + /* + * Check if SDRAM is already powered up, if it is, enable self-refresh + */ + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump skip; + NOP; + BITSET (R0, 23); +skip: + [P2] = R0; + SSYNC; + + /* Write in the new value in the register */ + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + [P2] = R0; + SSYNC; + nop; + + (P5:0) = [SP++]; + (R7:0) = [SP++]; + RETS = [SP++]; + ASTAT = [SP++]; + RTS; diff --git a/cpu/bf537/interrupt.S b/cpu/bf537/interrupt.S new file mode 100644 index 0000000..a71df55 --- /dev/null +++ b/cpu/bf537/interrupt.S @@ -0,0 +1,246 @@ +/* + * U-boot - interrupt.S Processing of interrupts and exception handling + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on interrupt.S + * + * Copyright (C) 2003 Metrowerks, Inc. <mwaddel@metrowerks.com> + * Copyright (C) 2002 Arcturus Networks Ltd. Ted Ma <mated@sympatico.ca> + * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * + * (c) 1995, Dionne & Associates + * (c) 1995, DKG Display Tech. + * + * This file is also based on exception.asm + * (C) Copyright 2001-2005 - Analog Devices, Inc. All rights reserved. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#define ASSEMBLY +#include <config.h> +#include <asm/blackfin.h> +#include <asm/hw_irq.h> +#include <asm/entry.h> +#include <asm/blackfin_defs.h> + +.global _blackfin_irq_panic; + +.text +.align 2 + +#ifndef CONFIG_KGDB +.global _evt_emulation +_evt_emulation: + SAVE_CONTEXT + r0 = IRQ_EMU; + r1 = seqstat; + sp += -12; + call _blackfin_irq_panic; + sp += 12; + rte; +#endif + +.global _evt_nmi +_evt_nmi: + SAVE_CONTEXT + r0 = IRQ_NMI; + r1 = RETN; + sp += -12; + call _blackfin_irq_panic; + sp += 12; + +_evt_nmi_exit: + rtn; + +.global _trap +_trap: + SAVE_ALL_SYS + r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ + sp += -12; + call _trap_c + sp += 12; + RESTORE_ALL_SYS + rtx; + +.global _evt_rst +_evt_rst: + SAVE_CONTEXT + r0 = IRQ_RST; + r1 = RETN; + sp += -12; + call _do_reset; + sp += 12; + +_evt_rst_exit: + rtn; + +irq_panic: + r0 = IRQ_EVX; + r1 = sp; + sp += -12; + call _blackfin_irq_panic; + sp += 12; + +.global _evt_ivhw +_evt_ivhw: + SAVE_CONTEXT + RAISE 14; + +_evt_ivhw_exit: + rti; + +.global _evt_timer +_evt_timer: + SAVE_CONTEXT + r0 = IRQ_CORETMR; + sp += -12; + /* Polling method used now. */ + /* call timer_int; */ + sp += 12; + RESTORE_CONTEXT + rti; + nop; + +.global _evt_evt7 +_evt_evt7: + SAVE_CONTEXT + r0 = 7; + sp += -12; + call _process_int; + sp += 12; + +evt_evt7_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt8 +_evt_evt8: + SAVE_CONTEXT + r0 = 8; + sp += -12; + call _process_int; + sp += 12; + +evt_evt8_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt9 +_evt_evt9: + SAVE_CONTEXT + r0 = 9; + sp += -12; + call _process_int; + sp += 12; + +evt_evt9_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt10 +_evt_evt10: + SAVE_CONTEXT + r0 = 10; + sp += -12; + call _process_int; + sp += 12; + +evt_evt10_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt11 +_evt_evt11: + SAVE_CONTEXT + r0 = 11; + sp += -12; + call _process_int; + sp += 12; + +evt_evt11_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt12 +_evt_evt12: + SAVE_CONTEXT + r0 = 12; + sp += -12; + call _process_int; + sp += 12; +evt_evt12_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt13 +_evt_evt13: + SAVE_CONTEXT + r0 = 13; + sp += -12; + call _process_int; + sp += 12; + +evt_evt13_exit: + RESTORE_CONTEXT + rti; + +.global _evt_system_call +_evt_system_call: + [--sp] = r0; + [--SP] = RETI; + r0 = [sp++]; + r0 += 2; + [--sp] = r0; + RETI = [SP++]; + r0 = [SP++]; + SAVE_CONTEXT + sp += -12; + call _exception_handle; + sp += 12; + RESTORE_CONTEXT + RTI; + +evt_system_call_exit: + rti; + +.global _evt_soft_int1 +_evt_soft_int1: + [--sp] = r0; + [--SP] = RETI; + r0 = [sp++]; + r0 += 2; + [--sp] = r0; + RETI = [SP++]; + r0 = [SP++]; + SAVE_CONTEXT + sp += -12; + call _exception_handle; + sp += 12; + RESTORE_CONTEXT + RTI; + +evt_soft_int1_exit: + rti; diff --git a/cpu/bf537/interrupts.c b/cpu/bf537/interrupts.c new file mode 100644 index 0000000..d2213b1 --- /dev/null +++ b/cpu/bf537/interrupts.c @@ -0,0 +1,174 @@ +/* + * U-boot - interrupts.c Interrupt related routines + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on interrupts.c + * Copyright 1996 Roman Zippel + * Copyright 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca> + * Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> + * Copyright 2003 Metrowerks/Motorola + * Copyright 2003 Bas Vermeulen <bas@buyways.nl>, + * BuyWays B.V. (www.buyways.nl) + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/machdep.h> +#include <asm/irq.h> +#include <config.h> +#include <asm/blackfin.h> +#include "cpu.h" + +static ulong timestamp; +static ulong last_time; +static int int_flag; + +int irq_flags; /* needed by asm-blackfin/system.h */ + +/* Functions just to satisfy the linker */ + +/* + * This function is derived from PowerPC code (read timebase as long long). + * On BF533 it just returns the timer value. + */ +unsigned long long get_ticks(void) +{ + return get_timer(0); +} + +/* + * This function is derived from PowerPC code (timebase clock frequency). + * On BF533 it returns the number of timer ticks per second. + */ +ulong get_tbclk (void) +{ + ulong tbclk; + + tbclk = CFG_HZ; + return tbclk; +} + +void enable_interrupts(void) +{ + restore_flags(int_flag); +} + +int disable_interrupts(void) +{ + save_and_cli(int_flag); + return 1; +} + +int interrupt_init(void) +{ + return (0); +} + +void udelay(unsigned long usec) +{ + unsigned long delay, start, stop; + unsigned long cclk; + cclk = (CONFIG_CCLK_HZ); + + while (usec > 1) { + /* + * how many clock ticks to delay? + * - request(in useconds) * clock_ticks(Hz) / useconds/second + */ + if (usec < 1000) { + delay = (usec * (cclk / 244)) >> 12; + usec = 0; + } else { + delay = (1000 * (cclk / 244)) >> 12; + usec -= 1000; + } + + asm volatile (" %0 = CYCLES;":"=r" (start)); + do { + asm volatile (" %0 = CYCLES; ":"=r" (stop)); + } while (stop - start < delay); + } + + return; +} + +void timer_init(void) +{ + *pTCNTL = 0x1; + *pTSCALE = 0x0; + *pTCOUNT = MAX_TIM_LOAD; + *pTPERIOD = MAX_TIM_LOAD; + *pTCNTL = 0x7; + asm("CSYNC;"); + + timestamp = 0; + last_time = 0; +} + +/* Any network command or flash + * command is started get_timer shall + * be called before TCOUNT gets reset, + * to implement the accurate timeouts. + * + * How ever milliconds doesn't return + * the number that has been elapsed from + * the last reset. + * + * As get_timer is used in the u-boot + * only for timeouts this should be + * sufficient + */ +ulong get_timer(ulong base) +{ + ulong milisec; + + /* Number of clocks elapsed */ + ulong clocks = (MAX_TIM_LOAD - (*pTCOUNT)); + + /** + * Find if the TCOUNT is reset + * timestamp gives the number of times + * TCOUNT got reset + */ + if (clocks < last_time) + timestamp++; + last_time = clocks; + + /* Get the number of milliseconds */ + milisec = clocks / (CONFIG_CCLK_HZ / 1000); + + /** + * Find the number of millisonds + * that got elapsed before this TCOUNT cycle + */ + milisec += timestamp * (MAX_TIM_LOAD / (CONFIG_CCLK_HZ / 1000)); + + return (milisec - base); +} + +void reset_timer (void) +{ + timestamp = 0; +} diff --git a/cpu/bf537/ints.c b/cpu/bf537/ints.c new file mode 100644 index 0000000..5586689 --- /dev/null +++ b/cpu/bf537/ints.c @@ -0,0 +1,117 @@ +/* + * U-boot - ints.c Interrupt related routines + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on ints.c + * + * Apr18 2003, Changed by HuTao to support interrupt cascading for Blackfin + * drivers + * + * Copyright 1996 Roman Zippel + * Copyright 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca> + * Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> + * Copyright 2003 Metrowerks/Motorola + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <linux/stddef.h> +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/traps.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/machdep.h> +#include <asm/setup.h> +#include <asm/blackfin.h> +#include "cpu.h" + +void blackfin_irq_panic(int reason, struct pt_regs *regs) +{ + printf("\n\nException: IRQ 0x%x entered\n", reason); + printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f)); + printf("stack frame=0x%x, ", (unsigned int)regs); + printf("bad PC=0x%04x\n", (unsigned int)regs->pc); + dump(regs); + printf("Unhandled IRQ or exceptions!\n"); + printf("Please reset the board \n"); +} + +void blackfin_init_IRQ(void) +{ + *(unsigned volatile long *)(SIC_IMASK) = SIC_UNMASK_ALL; + cli(); +#ifndef CONFIG_KGDB + *(unsigned volatile long *)(EVT_EMULATION_ADDR) = 0x0; +#endif + *(unsigned volatile long *)(EVT_NMI_ADDR) = + (unsigned volatile long)evt_nmi; + *(unsigned volatile long *)(EVT_EXCEPTION_ADDR) = + (unsigned volatile long)trap; + *(unsigned volatile long *)(EVT_HARDWARE_ERROR_ADDR) = + (unsigned volatile long)evt_ivhw; + *(unsigned volatile long *)(EVT_RESET_ADDR) = + (unsigned volatile long)evt_rst; + *(unsigned volatile long *)(EVT_TIMER_ADDR) = + (unsigned volatile long)evt_timer; + *(unsigned volatile long *)(EVT_IVG7_ADDR) = + (unsigned volatile long)evt_evt7; + *(unsigned volatile long *)(EVT_IVG8_ADDR) = + (unsigned volatile long)evt_evt8; + *(unsigned volatile long *)(EVT_IVG9_ADDR) = + (unsigned volatile long)evt_evt9; + *(unsigned volatile long *)(EVT_IVG10_ADDR) = + (unsigned volatile long)evt_evt10; + *(unsigned volatile long *)(EVT_IVG11_ADDR) = + (unsigned volatile long)evt_evt11; + *(unsigned volatile long *)(EVT_IVG12_ADDR) = + (unsigned volatile long)evt_evt12; + *(unsigned volatile long *)(EVT_IVG13_ADDR) = + (unsigned volatile long)evt_evt13; + *(unsigned volatile long *)(EVT_IVG14_ADDR) = + (unsigned volatile long)evt_system_call; + *(unsigned volatile long *)(EVT_IVG15_ADDR) = + (unsigned volatile long)evt_soft_int1; + *(volatile unsigned long *)ILAT = 0; + asm("csync;"); + sti(); + *(volatile unsigned long *)IMASK = 0xffbf; + asm("csync;"); +} + +void exception_handle(void) +{ +#if defined (CONFIG_PANIC_HANG) + display_excp(); +#else + udelay(100000); /* allow messages to go out */ + do_reset(NULL, 0, 0, NULL); +#endif +} + +void display_excp(void) +{ + printf("Exception!\n"); +} diff --git a/cpu/bf537/serial.c b/cpu/bf537/serial.c new file mode 100644 index 0000000..e04d08a --- /dev/null +++ b/cpu/bf537/serial.c @@ -0,0 +1,194 @@ +/* + * U-boot - serial.c Serial driver for BF537 + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on + * bf537_serial.c: Serial driver for BlackFin BF537 internal UART. + * Copyright (c) 2003 Bas Vermeulen <bas@buyways.nl>, + * BuyWays B.V. (www.buyways.nl) + * + * Based heavily on blkfinserial.c + * blkfinserial.c: Serial driver for BlackFin DSP internal USRTs. + * Copyright(c) 2003 Metrowerks <mwaddel@metrowerks.com> + * Copyright(c) 2001 Tony Z. Kou <tonyko@arcturusnetworks.com> + * Copyright(c) 2001-2002 Arcturus Networks Inc. <www.arcturusnetworks.com> + * + * Based on code from 68328 version serial driver imlpementation which was: + * Copyright (C) 1995 David S. Miller <davem@caip.rutgers.edu> + * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> + * Copyright (C) 1998, 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright (C) 1999 Vladimir Gurevich <vgurevic@cisco.com> + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/segment.h> +#include <asm/bitops.h> +#include <asm/delay.h> +#include <asm/uaccess.h> +#include <asm/io.h> +#include "serial.h" + +unsigned long pll_div_fact; + +void calc_baud(void) +{ + unsigned char i; + int temp; + u_long sclk = get_sclk(); + + for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) { + temp = sclk / (baud_table[i] * 8); + if ((temp & 0x1) == 1) { + temp++; + } + temp = temp / 2; + hw_baud_table[i].dl_high = (temp >> 8) & 0xFF; + hw_baud_table[i].dl_low = (temp) & 0xFF; + } +} + +void serial_setbrg(void) +{ + int i; + DECLARE_GLOBAL_DATA_PTR; + + calc_baud(); + + for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) { + if (gd->baudrate == baud_table[i]) + break; + } + + /* Enable UART */ + *pUART_GCTL |= UART_GCTL_UCEN; + sync(); + + /* Set DLAB in LCR to Access DLL and DLH */ + ACCESS_LATCH; + sync(); + + *pUART_DLL = hw_baud_table[i].dl_low; + sync(); + *pUART_DLH = hw_baud_table[i].dl_high; + sync(); + + /* Clear DLAB in LCR to Access THR RBR IER */ + ACCESS_PORT_IER; + sync(); + + /* Enable ERBFI and ELSI interrupts + * to poll SIC_ISR register*/ + *pUART_IER = UART_IER_ELSI | UART_IER_ERBFI | UART_IER_ETBEI; + sync(); + + /* Set LCR to Word Lengh 8-bit word select */ + *pUART_LCR = UART_LCR_WLS8; + sync(); + + return; +} + +int serial_init(void) +{ + serial_setbrg(); + return (0); +} + +void serial_putc(const char c) +{ + if ((*pUART_LSR) & UART_LSR_TEMT) { + if (c == '\n') + serial_putc('\r'); + + local_put_char(c); + } + + while (!((*pUART_LSR) & UART_LSR_TEMT)) + SYNC_ALL; + + return; +} + +int serial_tstc(void) +{ + if (*pUART_LSR & UART_LSR_DR) + return 1; + else + return 0; +} + +int serial_getc(void) +{ + unsigned short uart_lsr_val, uart_rbr_val; + unsigned long isr_val; + int ret; + + /* Poll for RX Interrupt */ + while (!((isr_val = + *(volatile unsigned long *)SIC_ISR) & IRQ_UART_RX_BIT)) ; + asm("csync;"); + + uart_lsr_val = *pUART_LSR; /* Clear status bit */ + uart_rbr_val = *pUART_RBR; /* getc() */ + + if (isr_val & IRQ_UART_ERROR_BIT) { + ret = -1; + } else { + ret = uart_rbr_val & 0xff; + } + + return ret; +} + +void serial_puts(const char *s) +{ + while (*s) { + serial_putc(*s++); + } +} + +static void local_put_char(char ch) +{ + int flags = 0; + unsigned long isr_val; + + save_and_cli(flags); + + /* Poll for TX Interruput */ + while (!((isr_val = *pSIC_ISR) & IRQ_UART_TX_BIT)) ; + asm("csync;"); + + *pUART_THR = ch; /* putc() */ + + if (isr_val & IRQ_UART_ERROR_BIT) { + printf("?"); + } + + restore_flags(flags); + + return; +} diff --git a/cpu/bf537/serial.h b/cpu/bf537/serial.h new file mode 100644 index 0000000..76555c2 --- /dev/null +++ b/cpu/bf537/serial.h @@ -0,0 +1,77 @@ +/* + * U-boot - bf537_serial.h Serial Driver defines + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on + * bf533_serial.h: Definitions for the BlackFin BF533 DSP serial driver. + * Copyright (C) 2003 Bas Vermeulen <bas@buyways.nl> + * BuyWays B.V. (www.buyways.nl) + * + * Based heavily on: + * blkfinserial.h: Definitions for the BlackFin DSP serial driver. + * + * Copyright (C) 2001 Tony Z. Kou tonyko@arcturusnetworks.com + * Copyright (C) 2001 Arcturus Networks Inc. <www.arcturusnetworks.com> + * + * Based on code from 68328serial.c which was: + * Copyright (C) 1995 David S. Miller <davem@caip.rutgers.edu> + * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> + * Copyright (C) 1998, 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright (C) 1999 Vladimir Gurevich <vgurevic@cisco.com> + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef _Bf537_SERIAL_H +#define _Bf537_SERIAL_H + +#include <linux/config.h> +#include <asm/blackfin.h> + +#define SYNC_ALL __asm__ __volatile__ ("ssync;\n") +#define ACCESS_LATCH *pUART_LCR |= UART_LCR_DLAB; +#define ACCESS_PORT_IER *pUART_LCR &= (~UART_LCR_DLAB); + +void serial_setbrg(void); +static void local_put_char(char ch); +void calc_baud(void); +void serial_setbrg(void); +int serial_init(void); +void serial_putc(const char c); +int serial_tstc(void); +int serial_getc(void); +void serial_puts(const char *s); +static void local_put_char(char ch); + +int baud_table[5] = { 9600, 19200, 38400, 57600, 115200 }; + +struct { + unsigned char dl_high; + unsigned char dl_low; +} hw_baud_table[5]; + +#ifdef CONFIG_STAMP +extern unsigned long pll_div_fact; +#endif + +#endif diff --git a/cpu/bf537/start.S b/cpu/bf537/start.S new file mode 100644 index 0000000..4e02bcb --- /dev/null +++ b/cpu/bf537/start.S @@ -0,0 +1,579 @@ +/* + * U-boot - start.S Startup file of u-boot for BF537 + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on head.S + * Copyright (c) 2003 Metrowerks/Motorola + * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * (c) 1995, Dionne & Associates + * (c) 1995, DKG Display Tech. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +/* + * Note: A change in this file subsequently requires a change in + * board/$(board_name)/config.mk for a valid u-boot.bin + */ + +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> + +.global _stext; +.global __bss_start; +.global start; +.global _start; +.global _rambase; +.global _ramstart; +.global _ramend; +.global _bf533_data_dest; +.global _bf533_data_size; +.global edata; +.global _initialize; +.global _exit; +.global flashdataend; +.global init_sdram; +.global _icache_enable; +.global _dcache_enable; +#if defined(CONFIG_BF537)&&defined(CONFIG_POST) +.global _memory_post_test; +.global _post_flag; +#endif + +#if (BFIN_BOOT_MODE == BF537_UART_BOOT) +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif +#endif + +.text +_start: +start: +_stext: + + R0 = 0x32; + SYSCFG = R0; + SSYNC; + + /* As per HW reference manual DAG registers, + * DATA and Address resgister shall be zero'd + * in initialization, after a reset state + */ + r1 = 0; /* Data registers zero'd */ + r2 = 0; + r3 = 0; + r4 = 0; + r5 = 0; + r6 = 0; + r7 = 0; + + p0 = 0; /* Address registers zero'd */ + p1 = 0; + p2 = 0; + p3 = 0; + p4 = 0; + p5 = 0; + + i0 = 0; /* DAG Registers zero'd */ + i1 = 0; + i2 = 0; + i3 = 0; + m0 = 0; + m1 = 0; + m3 = 0; + m3 = 0; + l0 = 0; + l1 = 0; + l2 = 0; + l3 = 0; + b0 = 0; + b1 = 0; + b2 = 0; + b3 = 0; + + /* Set loop counters to zero, to make sure that + * hw loops are disabled. + */ + r0 = 0; + lc0 = r0; + lc1 = r0; + + SSYNC; + + /* Check soft reset status */ + p0.h = SWRST >> 16; + p0.l = SWRST & 0xFFFF; + r0.l = w[p0]; + + cc = bittst(r0, 15); + if !cc jump no_soft_reset; + + /* Clear Soft reset */ + r0 = 0x0000; + w[p0] = r0; + ssync; + +no_soft_reset: + nop; + + /* Clear EVT registers */ + p0.h = (EVT_EMULATION_ADDR >> 16); + p0.l = (EVT_EMULATION_ADDR & 0xFFFF); + p0 += 8; + p1 = 14; + r1 = 0; + LSETUP(4,4) lc0 = p1; + [ p0 ++ ] = r1; + +#if (BFIN_BOOT_MODE != BF537_SPI_MASTER_BOOT) + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + w[p0] = r0.l; + SSYNC; +#endif + +#if (BFIN_BOOT_MODE == BF537_UART_BOOT) + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + w[p0] = r0.l; + SSYNC; + + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2?*/ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; +#endif + + /* + * We now are running at speed, time to set the Async mem bank wait states + * This will speed up execution, since we are normally running from FLASH. + * we need to read MAC address from FLASH + */ + p2.h = (EBIU_AMBCTL1 >> 16); + p2.l = (EBIU_AMBCTL1 & 0xFFFF); + r0.h = (AMBCTL1VAL >> 16); + r0.l = (AMBCTL1VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMBCTL0 >> 16); + p2.l = (EBIU_AMBCTL0 & 0xFFFF); + r0.h = (AMBCTL0VAL >> 16); + r0.l = (AMBCTL0VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMGCTL >> 16); + p2.l = (EBIU_AMGCTL & 0xffff); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + +#if ((BFIN_BOOT_MODE != BF537_SPI_MASTER_BOOT) && (BFIN_BOOT_MODE != BF537_UART_BOOT)) + sp.l = (0xffb01000 & 0xFFFF); + sp.h = (0xffb01000 >> 16); + + call init_sdram; +#endif + + +#if defined(CONFIG_BF537)&&defined(CONFIG_POST) + /* DMA POST code to Hi of L1 SRAM */ +postcopy: + /* P1 Points to the beginning of SYSTEM MMR Space */ + P1.H = hi(SYSMMR_BASE); + P1.L = lo(SYSMMR_BASE); + + R0.H = _text_l1; + R0.L = _text_l1; + R1.H = _etext_l1; + R1.L = _etext_l1; + R2 = R1 - R0; /* Count */ + R0.H = _etext; + R0.L = _etext; + R1.H = (CFG_MONITOR_BASE >> 16); + R1.L = (CFG_MONITOR_BASE & 0xFFFF); + R0 = R0 - R1; + R1.H = (CFG_FLASH_BASE >> 16); + R1.L = (CFG_FLASH_BASE & 0xFFFF); + R0 = R0 + R1; /* Source Address */ + R1.H = hi(L1_ISRAM); /* Destination Address (high) */ + R1.L = lo(L1_ISRAM); /* Destination Address (low) */ + R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */ + /* Destination DMAConfig Value (8-bit words) */ + R4.L = (DI_EN | WNR | DMAEN); + + R6 = 0x1 (Z); + W[P1+OFFSET_(MDMA_S0_X_MODIFY)] = R6; /* Source Modify = 1 */ + W[P1+OFFSET_(MDMA_D0_X_MODIFY)] = R6; /* Destination Modify = 1 */ + + [P1+OFFSET_(MDMA_S0_START_ADDR)] = R0; /* Set Source Base Address */ + W[P1+OFFSET_(MDMA_S0_X_COUNT)] = R2; /* Set Source Count */ + /* Set Source DMAConfig = DMA Enable, + Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */ + W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3; + + [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */ + W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */ + /* Set Destination DMAConfig = DMA Enable, + Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */ + W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4; + +POST_DMA_DONE: + p0.h = hi(MDMA_D0_IRQ_STATUS); + p0.l = lo(MDMA_D0_IRQ_STATUS); + R0 = W[P0](Z); + CC = BITTST(R0, 0); + if ! CC jump POST_DMA_DONE + + R0 = 0x1; + W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */ + + /* DMA POST data to Hi of L1 SRAM */ + R0.H = _rodata_l1; + R0.L = _rodata_l1; + R1.H = _erodata_l1; + R1.L = _erodata_l1; + R2 = R1 - R0; /* Count */ + R0.H = _erodata; + R0.L = _erodata; + R1.H = (CFG_MONITOR_BASE >> 16); + R1.L = (CFG_MONITOR_BASE & 0xFFFF); + R0 = R0 - R1; + R1.H = (CFG_FLASH_BASE >> 16); + R1.L = (CFG_FLASH_BASE & 0xFFFF); + R0 = R0 + R1; /* Source Address */ + R1.H = hi(DATA_BANKB_SRAM); /* Destination Address (high) */ + R1.L = lo(DATA_BANKB_SRAM); /* Destination Address (low) */ + R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */ + R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */ + + R6 = 0x1 (Z); + W[P1+OFFSET_(MDMA_S0_X_MODIFY)] = R6; /* Source Modify = 1 */ + W[P1+OFFSET_(MDMA_D0_X_MODIFY)] = R6; /* Destination Modify = 1 */ + + [P1+OFFSET_(MDMA_S0_START_ADDR)] = R0; /* Set Source Base Address */ + W[P1+OFFSET_(MDMA_S0_X_COUNT)] = R2; /* Set Source Count */ + /* Set Source DMAConfig = DMA Enable, + Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */ + W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3; + + [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */ + W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */ + /* Set Destination DMAConfig = DMA Enable, + Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */ + W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4; + +POST_DATA_DMA_DONE: + p0.h = hi(MDMA_D0_IRQ_STATUS); + p0.l = lo(MDMA_D0_IRQ_STATUS); + R0 = W[P0](Z); + CC = BITTST(R0, 0); + if ! CC jump POST_DATA_DMA_DONE + + R0 = 0x1; + W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */ + + p0.l = _memory_post_test; + p0.h = _memory_post_test; + r0 = 0x0; + call (p0); + r7 = r0; /* save return value */ + + call init_sdram; +#endif + + /* relocate into to RAM */ + call get_pc; +offset: + r2.l = offset; + r2.h = offset; + r3.l = start; + r3.h = start; + r1 = r2 - r3; + + r0 = r0 - r1; + p1 = r0; + + p2.l = (CFG_MONITOR_BASE & 0xffff); + p2.h = (CFG_MONITOR_BASE >> 16); + + p3 = 0x04; + p4.l = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) & 0xffff); + p4.h = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) >> 16); +loop1: + r1 = [p1 ++ p3]; + [p2 ++ p3] = r1; + cc=p2==p4; + if !cc jump loop1; + /* + * configure STACK + */ + r0.h = (CONFIG_STACKBASE >> 16); + r0.l = (CONFIG_STACKBASE & 0xFFFF); + sp = r0; + fp = sp; + + /* + * This next section keeps the processor in supervisor mode + * during kernel boot. Switches to user mode at end of boot. + * See page 3-9 of Hardware Reference manual for documentation. + */ + + /* To keep ourselves in the supervisor mode */ + p0.l = (EVT_IVG15_ADDR & 0xFFFF); + p0.h = (EVT_IVG15_ADDR >> 16); + + p1.l = _real_start; + p1.h = _real_start; + [p0] = p1; + + p0.l = (IMASK & 0xFFFF); + p0.h = (IMASK >> 16); + r0.l = LO(IVG15_POS); + r0.h = HI(IVG15_POS); + [p0] = r0; + raise 15; + p0.l = WAIT_HERE; + p0.h = WAIT_HERE; + reti = p0; + rti; + +WAIT_HERE: + jump WAIT_HERE; + +.global _real_start; +_real_start: + [ -- sp ] = reti; + +#ifdef CONFIG_BF537 +/* Initialise General-Purpose I/O Modules on BF537 + * Rev 0.0 Anomaly 05000212 - PORTx_FER, + * PORT_MUX Registers Do Not accept "writes" correctly + */ + p0.h = hi(PORTF_FER); + p0.l = lo(PORTF_FER); + R0.L = W[P0]; /* Read */ + nop; + nop; + nop; + ssync; + R0 = 0x000F(Z); + W[P0] = R0.L; /* Write */ + nop; + nop; + nop; + ssync; + W[P0] = R0.L; /* Enable peripheral function of PORTF for UART0 and UART1 */ + nop; + nop; + nop; + ssync; + + p0.h = hi(PORTH_FER); + p0.l = lo(PORTH_FER); + R0.L = W[P0]; /* Read */ + nop; + nop; + nop; + ssync; + R0 = 0xFFFF(Z); + W[P0] = R0.L; /* Write */ + nop; + nop; + nop; + ssync; + W[P0] = R0.L; /* Enable peripheral function of PORTH for MAC */ + nop; + nop; + nop; + ssync; + +#endif + + /* DMA reset code to Hi of L1 SRAM */ +copy: + P1.H = hi(SYSMMR_BASE); /* P1 Points to the beginning of SYSTEM MMR Space */ + P1.L = lo(SYSMMR_BASE); + + R0.H = reset_start; /* Source Address (high) */ + R0.L = reset_start; /* Source Address (low) */ + R1.H = reset_end; + R1.L = reset_end; + R2 = R1 - R0; /* Count */ + R1.H = hi(L1_ISRAM); /* Destination Address (high) */ + R1.L = lo(L1_ISRAM); /* Destination Address (low) */ + R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */ + R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */ + +DMA: + R6 = 0x1 (Z); + W[P1+OFFSET_(MDMA_S0_X_MODIFY)] = R6; /* Source Modify = 1 */ + W[P1+OFFSET_(MDMA_D0_X_MODIFY)] = R6; /* Destination Modify = 1 */ + + [P1+OFFSET_(MDMA_S0_START_ADDR)] = R0; /* Set Source Base Address */ + W[P1+OFFSET_(MDMA_S0_X_COUNT)] = R2; /* Set Source Count */ + /* Set Source DMAConfig = DMA Enable, + Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */ + W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3; + + [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */ + W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */ + /* Set Destination DMAConfig = DMA Enable, + Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */ + W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4; + +WAIT_DMA_DONE: + p0.h = hi(MDMA_D0_IRQ_STATUS); + p0.l = lo(MDMA_D0_IRQ_STATUS); + R0 = W[P0](Z); + CC = BITTST(R0, 0); + if ! CC jump WAIT_DMA_DONE + + R0 = 0x1; + W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */ + + /* Initialize BSS Section with 0 s */ + p1.l = __bss_start; + p1.h = __bss_start; + p2.l = _end; + p2.h = _end; + r1 = p1; + r2 = p2; + r3 = r2 - r1; + r3 = r3 >> 2; + p3 = r3; + lsetup (_clear_bss, _clear_bss_end ) lc1 = p3; + CC = p2<=p1; + if CC jump _clear_bss_skip; + r0 = 0; +_clear_bss: +_clear_bss_end: + [p1++] = r0; +_clear_bss_skip: + +#if defined(CONFIG_BF537)&&defined(CONFIG_POST) + p0.l = _post_flag; + p0.h = _post_flag; + r0 = r7; + [p0] = r0; +#endif + + p0.l = _start1; + p0.h = _start1; + jump (p0); + +reset_start: + p0.h = WDOG_CNT >> 16; + p0.l = WDOG_CNT & 0xffff; + r0 = 0x0010; + w[p0] = r0; + p0.h = WDOG_CTL >> 16; + p0.l = WDOG_CTL & 0xffff; + r0 = 0x0000; + w[p0] = r0; +reset_wait: + jump reset_wait; + +reset_end: + nop; + +_exit: + jump.s _exit; +get_pc: + r0 = rets; + rts; diff --git a/cpu/at32ap/at32ap7000/hebi.c b/cpu/bf537/start1.S index 3b32adf..6d4731b 100644 --- a/cpu/at32ap/at32ap7000/hebi.c +++ b/cpu/bf537/start1.S @@ -1,5 +1,7 @@ /* - * Copyright (C) 2006 Atmel Corporation + * U-boot - start1.S Code running out of RAM after relocation + * + * Copyright (c) 2005-2007 Analog Devices Inc. * * See file CREDITS for list of people who contributed to this * project. @@ -16,23 +18,21 @@ * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA */ -#include <common.h> - -#include <asm/io.h> - -#include <asm/arch/hmatrix2.h> -#include <asm/arch/memory-map.h> -#include <asm/arch/platform.h> -void cpu_enable_sdram(void) -{ - const struct device *hmatrix; +#define ASSEMBLY +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> - hmatrix = get_device(DEVICE_HMATRIX); +.global start1; +.global _start1; - /* Set the SDRAM_ENABLE bit in the HEBI SFR */ - hmatrix2_writel(hmatrix, SFR4, 1 << 1); -} +.text +_start1: +start1: + sp += -12; + call _board_init_f; + sp += 12; diff --git a/cpu/bf537/traps.c b/cpu/bf537/traps.c new file mode 100644 index 0000000..4e18e27 --- /dev/null +++ b/cpu/bf537/traps.c @@ -0,0 +1,240 @@ +/* + * U-boot - traps.c Routines related to interrupts and exceptions + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on + * No original Copyright holder listed, + * Probabily original (C) Roman Zippel (assigned DJD, 1999) + * + * Copyright 2003 Metrowerks - for Blackfin + * Copyright 2000-2001 Lineo, Inc. D. Jeff Dionne <jeff@lineo.ca> + * Copyright 1999-2000 D. Jeff Dionne, <jeff@uclinux.org> + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <linux/types.h> +#include <asm/errno.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include "cpu.h" +#include <asm/arch/anomaly.h> +#include <asm/cplb.h> +#include <asm/io.h> + +void init_IRQ(void) +{ + blackfin_init_IRQ(); + return; +} + +void process_int(unsigned long vec, struct pt_regs *fp) +{ + printf("interrupt\n"); + return; +} + +extern unsigned int icplb_table[page_descriptor_table_size][2]; +extern unsigned int dcplb_table[page_descriptor_table_size][2]; + +unsigned long last_cplb_fault_retx; + +static unsigned int cplb_sizes[4] = + { 1024, 4 * 1024, 1024 * 1024, 4 * 1024 * 1024 }; + +void trap_c(struct pt_regs *regs) +{ + unsigned int addr; + unsigned long trapnr = (regs->seqstat) & SEQSTAT_EXCAUSE; + unsigned int i, j, size, *I0, *I1; + unsigned short data = 0; + + switch (trapnr) { + /* 0x26 - Data CPLB Miss */ + case VEC_CPLB_M: + +#ifdef ANOMALY_05000261 + /* + * Work around an anomaly: if we see a new DCPLB fault, + * return without doing anything. Then, + * if we get the same fault again, handle it. + */ + addr = last_cplb_fault_retx; + last_cplb_fault_retx = regs->retx; + printf("this time, curr = 0x%08x last = 0x%08x\n", + addr, last_cplb_fault_retx); + if (addr != last_cplb_fault_retx) + goto trap_c_return; +#endif + data = 1; + + case VEC_CPLB_I_M: + + if (data) { + addr = *pDCPLB_FAULT_ADDR; + } else { + addr = *pICPLB_FAULT_ADDR; + } + for (i = 0; i < page_descriptor_table_size; i++) { + if (data) { + size = cplb_sizes[dcplb_table[i][1] >> 16]; + j = dcplb_table[i][0]; + } else { + size = cplb_sizes[icplb_table[i][1] >> 16]; + j = icplb_table[i][0]; + } + if ((j <= addr) && ((j + size) > addr)) { + debug("found %i 0x%08x\n", i, j); + break; + } + } + if (i == page_descriptor_table_size) { + printf("something is really wrong\n"); + do_reset(NULL, 0, 0, NULL); + } + + /* Turn the cache off */ + if (data) { + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL &= + ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + sync(); + } else { + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB); + sync(); + } + + if (data) { + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + } else { + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + } + + j = 0; + while (*I1 & CPLB_LOCK) { + debug("skipping %i %08p - %08x\n", j, I1, *I1); + *I0++; + *I1++; + j++; + } + + debug("remove %i 0x%08x 0x%08x\n", j, *I0, *I1); + + for (; j < 15; j++) { + debug("replace %i 0x%08x 0x%08x\n", j, I0, I0 + 1); + *I0++ = *(I0 + 1); + *I1++ = *(I1 + 1); + } + + if (data) { + *I0 = dcplb_table[i][0]; + *I1 = dcplb_table[i][1]; + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + } else { + *I0 = icplb_table[i][0]; + *I1 = icplb_table[i][1]; + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + } + + for (j = 0; j < 16; j++) { + debug("%i 0x%08x 0x%08x\n", j, *I0++, *I1++); + } + + /* Turn the cache back on */ + if (data) { + j = *(unsigned int *)DMEM_CONTROL; + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL = + ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | j; + sync(); + } else { + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB; + sync(); + } + + break; + default: + /* All traps come here */ + printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f)); + printf("stack frame=0x%x, ", (unsigned int)regs); + printf("bad PC=0x%04x\n", (unsigned int)regs->pc); + dump(regs); + printf("\n\n"); + + printf("Unhandled IRQ or exceptions!\n"); + printf("Please reset the board \n"); + do_reset(NULL, 0, 0, NULL); + } + +trap_c_return: + return; + +} + +void dump(struct pt_regs *fp) +{ + debug("RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n", + fp->rete, fp->retn, fp->retx, fp->rets); + debug("IPEND: %04lx SYSCFG: %04lx\n", fp->ipend, fp->syscfg); + debug("SEQSTAT: %08lx SP: %08lx\n", (long)fp->seqstat, (long)fp); + debug("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", + fp->r0, fp->r1, fp->r2, fp->r3); + debug("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", + fp->r4, fp->r5, fp->r6, fp->r7); + debug("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", + fp->p0, fp->p1, fp->p2, fp->p3); + debug("P4: %08lx P5: %08lx FP: %08lx\n", + fp->p4, fp->p5, fp->fp); + debug("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n", + fp->a0w, fp->a0x, fp->a1w, fp->a1x); + + debug("LB0: %08lx LT0: %08lx LC0: %08lx\n", + fp->lb0, fp->lt0, fp->lc0); + debug("LB1: %08lx LT1: %08lx LC1: %08lx\n", + fp->lb1, fp->lt1, fp->lc1); + debug("B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n", + fp->b0, fp->l0, fp->m0, fp->i0); + debug("B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n", + fp->b1, fp->l1, fp->m1, fp->i1); + debug("B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n", + fp->b2, fp->l2, fp->m2, fp->i2); + debug("B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n", + fp->b3, fp->l3, fp->m3, fp->i3); + + debug("DCPLB_FAULT_ADDR=%p\n", *pDCPLB_FAULT_ADDR); + debug("ICPLB_FAULT_ADDR=%p\n", *pICPLB_FAULT_ADDR); + +} diff --git a/cpu/bf537/video.c b/cpu/bf537/video.c new file mode 100644 index 0000000..3ff0151 --- /dev/null +++ b/cpu/bf537/video.c @@ -0,0 +1,194 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * (C) Copyright 2002 + * Wolfgang Denk, wd@denx.de + * (C) Copyright 2006 + * Aubrey Li, aubrey.li@analog.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <stdarg.h> +#include <common.h> +#include <config.h> +#include <asm/blackfin.h> +#include <i2c.h> +#include <linux/types.h> +#include <devices.h> + +#ifdef CONFIG_VIDEO +#define NTSC_FRAME_ADDR 0x06000000 +#include "video.h" + +/* NTSC OUTPUT SIZE 720 * 240 */ +#define VERTICAL 2 +#define HORIZONTAL 4 + +int is_vblank_line(const int line) +{ + /* + * This array contains a single bit for each line in + * an NTSC frame. + */ + if ((line <= 18) || (line >= 264 && line <= 281) || (line == 528)) + return true; + + return false; +} + +int NTSC_framebuffer_init(char *base_address) +{ + const int NTSC_frames = 1; + const int NTSC_lines = 525; + char *dest = base_address; + int frame_num, line_num; + + for (frame_num = 0; frame_num < NTSC_frames; ++frame_num) { + for (line_num = 1; line_num <= NTSC_lines; ++line_num) { + unsigned int code; + int offset = 0; + int i; + + if (is_vblank_line(line_num)) + offset++; + + if (line_num > 266 || line_num < 3) + offset += 2; + + /* Output EAV code */ + code = SystemCodeMap[offset].EAV; + write_dest_byte((char)(code >> 24) & 0xff); + write_dest_byte((char)(code >> 16) & 0xff); + write_dest_byte((char)(code >> 8) & 0xff); + write_dest_byte((char)(code) & 0xff); + + /* Output horizontal blanking */ + for (i = 0; i < 67 * 2; ++i) { + write_dest_byte(0x80); + write_dest_byte(0x10); + } + + /* Output SAV */ + code = SystemCodeMap[offset].SAV; + write_dest_byte((char)(code >> 24) & 0xff); + write_dest_byte((char)(code >> 16) & 0xff); + write_dest_byte((char)(code >> 8) & 0xff); + write_dest_byte((char)(code) & 0xff); + + /* Output empty horizontal data */ + for (i = 0; i < 360 * 2; ++i) { + write_dest_byte(0x80); + write_dest_byte(0x10); + } + } + } + + return dest - base_address; +} + +void fill_frame(char *Frame, int Value) +{ + int *OddPtr32; + int OddLine; + int *EvenPtr32; + int EvenLine; + int i; + int *data; + int m, n; + + /* fill odd and even frames */ + for (OddLine = 22, EvenLine = 285; OddLine < 263; OddLine++, EvenLine++) { + OddPtr32 = (int *)((Frame + (OddLine * 1716)) + 276); + EvenPtr32 = (int *)((Frame + (EvenLine * 1716)) + 276); + for (i = 0; i < 360; i++, OddPtr32++, EvenPtr32++) { + *OddPtr32 = Value; + *EvenPtr32 = Value; + } + } + + for (m = 0; m < VERTICAL; m++) { + data = (int *)u_boot_logo.data; + for (OddLine = (22 + m), EvenLine = (285 + m); + OddLine < (u_boot_logo.height * VERTICAL) + (22 + m); + OddLine += VERTICAL, EvenLine += VERTICAL) { + OddPtr32 = (int *)((Frame + ((OddLine) * 1716)) + 276); + EvenPtr32 = + (int *)((Frame + ((EvenLine) * 1716)) + 276); + for (i = 0; i < u_boot_logo.width / 2; i++) { + /* enlarge one pixel to m x n */ + for (n = 0; n < HORIZONTAL; n++) { + *OddPtr32++ = *data; + *EvenPtr32++ = *data; + } + data++; + } + } + } +} + +void video_putc(const char c) +{ +} + +void video_puts(const char *s) +{ +} + +static int video_init(void) +{ + char *NTSCFrame; + NTSCFrame = (char *)NTSC_FRAME_ADDR; + NTSC_framebuffer_init(NTSCFrame); + fill_frame(NTSCFrame, BLUE); + + *pPPI_CONTROL = 0x0082; + *pPPI_FRAME = 0x020D; + + *pDMA0_START_ADDR = NTSCFrame; + *pDMA0_X_COUNT = 0x035A; + *pDMA0_X_MODIFY = 0x0002; + *pDMA0_Y_COUNT = 0x020D; + *pDMA0_Y_MODIFY = 0x0002; + *pDMA0_CONFIG = 0x1015; + *pPPI_CONTROL = 0x0083; + return 0; +} + +int drv_video_init(void) +{ + int error, devices = 1; + + device_t videodev; + + video_init(); /* Video initialization */ + + memset(&videodev, 0, sizeof(videodev)); + + strcpy(videodev.name, "video"); + videodev.ext = DEV_EXT_VIDEO; /* Video extensions */ + videodev.flags = DEV_FLAGS_OUTPUT; /* Output only */ + videodev.putc = video_putc; /* 'putc' function */ + videodev.puts = video_puts; /* 'puts' function */ + + error = device_register(&videodev); + + return (error == 0) ? devices : error; +} +#endif diff --git a/cpu/bf537/video.h b/cpu/bf537/video.h new file mode 100644 index 0000000..a43553f --- /dev/null +++ b/cpu/bf537/video.h @@ -0,0 +1,25 @@ +#include <video_logo.h> +#define write_dest_byte(val) {*dest++=val;} +#define BLACK (0x01800180) /* black pixel pattern */ +#define BLUE (0x296E29F0) /* blue pixel pattern */ +#define RED (0x51F0515A) /* red pixel pattern */ +#define MAGENTA (0x6ADE6ACA) /* magenta pixel pattern*/ +#define GREEN (0x91229136) /* green pixel pattern */ +#define CYAN (0xAA10AAA6) /* cyan pixel pattern */ +#define YELLOW (0xD292D210) /* yellow pixel pattern */ +#define WHITE (0xFE80FE80) /* white pixel pattern */ + +#define true 1 +#define false 0 + +typedef struct { + unsigned int SAV; + unsigned int EAV; +} SystemCodeType; + +const SystemCodeType SystemCodeMap[4] = { + {0xFF000080, 0xFF00009D}, + {0xFF0000AB, 0xFF0000B6}, + {0xFF0000C7, 0xFF0000DA}, + {0xFF0000EC, 0xFF0000F1} +}; diff --git a/cpu/bf561/Makefile b/cpu/bf561/Makefile new file mode 100644 index 0000000..2947169 --- /dev/null +++ b/cpu/bf561/Makefile @@ -0,0 +1,52 @@ +# U-boot - Makefile +# +# Copyright (c) 2005-2007 Analog Devices Inc. +# +# (C) Copyright 2000-2004 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(CPU).a + +START = start.o start1.o interrupt.o cache.o flush.o init_sdram.o +COBJS = cpu.o traps.o ints.o serial.o interrupts.o video.o + +EXTRA = init_sdram_bootrom_initblock.o + +SRCS := $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS) $(SOBJS)) +START := $(addprefix $(obj),$(START)) + +all: $(obj).depend $(START) $(LIB) $(obj).depend $(EXTRA) + +$(LIB): $(OBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) + +######################################################################### + +# defines $(obj).depend target +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/cpu/bf561/cache.S b/cpu/bf561/cache.S new file mode 100644 index 0000000..5bda5bf --- /dev/null +++ b/cpu/bf561/cache.S @@ -0,0 +1,128 @@ +#define ASSEMBLY +#include <asm/linkage.h> +#include <config.h> +#include <asm/blackfin.h> + +.text +.align 2 +ENTRY(_blackfin_icache_flush_range) + R2 = -32; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; + 1: + IFLUSH[P0++]; + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); + IFLUSH[P0]; + SSYNC; + RTS; + +ENTRY(_blackfin_dcache_flush_range) + R2 = -32; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; +1: + FLUSH[P0++]; + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); + FLUSH[P0]; + SSYNC; + RTS; + +ENTRY(_icache_invalidate) +ENTRY(_invalidate_entire_icache) + [--SP] = (R7:5); + + P0.L = (IMEM_CONTROL & 0xFFFF); + P0.H = (IMEM_CONTROL >> 16); + R7 =[P0]; + + /* + * Clear the IMC bit , All valid bits in the instruction + * cache are set to the invalid state + */ + BITCLR(R7, IMC_P); + CLI R6; + /* SSYNC required before invalidating cache. */ + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + /* Configures the instruction cache agian */ + R6 = (IMC | ENICPLB); + R7 = R7 | R6; + + CLI R6; + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + (R7:5) =[SP++]; + RTS; + +/* + * Invalidate the Entire Data cache by + * clearing DMC[1:0] bits + */ +ENTRY(_invalidate_entire_dcache) +ENTRY(_dcache_invalidate) + [--SP] = (R7:6); + + P0.L = (DMEM_CONTROL & 0xFFFF); + P0.H = (DMEM_CONTROL >> 16); + R7 =[P0]; + + /* + * Clear the DMC[1:0] bits, All valid bits in the data + * cache are set to the invalid state + */ + BITCLR(R7, DMC0_P); + BITCLR(R7, DMC1_P); + CLI R6; + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + /* Configures the data cache again */ + + R6 = (ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + R7 = R7 | R6; + + CLI R6; + SSYNC; + .align 8; + [P0] = R7; + SSYNC; + STI R6; + + (R7:6) =[SP++]; + RTS; + +ENTRY(_blackfin_dcache_invalidate_range) + R2 = -32; + R2 = R0 & R2; + P0 = R2; + P1 = R1; + CSYNC; +1: + FLUSHINV[P0++]; + CC = P0 < P1(iu); + IF CC JUMP 1b(bp); + + /* + * If the data crosses a cache line, then we'll be pointing to + * the last cache line, but won't have flushed/invalidated it yet, so do + * one more. + */ + FLUSHINV[P0]; + SSYNC; + RTS; diff --git a/cpu/bf561/config.mk b/cpu/bf561/config.mk new file mode 100644 index 0000000..f4dc04b --- /dev/null +++ b/cpu/bf561/config.mk @@ -0,0 +1,27 @@ +# U-boot - config.mk +# +# Copyright (c) 2005-2007 Analog Devices Inc. +# +# (C) Copyright 2000-2004 +# Wolfgang Denk, DENX Software Engineering, wd@denx.de. +# +# See file CREDITS for list of people who contributed to this +# project. +# +# This program is free software; you can redistribute it and/or +# modify it under the terms of the GNU General Public License as +# published by the Free Software Foundation; either version 2 of +# the License, or (at your option) any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program; if not, write to the Free Software +# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, +# MA 02110-1301 USA +# + +PLATFORM_RELFLAGS += -mcpu=bf561 -ffixed-P5 diff --git a/cpu/bf561/cpu.c b/cpu/bf561/cpu.c new file mode 100644 index 0000000..5b907cd --- /dev/null +++ b/cpu/bf561/cpu.c @@ -0,0 +1,220 @@ +/* + * U-boot - cpu.c CPU specific functions + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/blackfin.h> +#include <command.h> +#include <asm/entry.h> +#include <asm/cplb.h> +#include <asm/io.h> + +#define CACHE_ON 1 +#define CACHE_OFF 0 + +extern unsigned int icplb_table[page_descriptor_table_size][2]; +extern unsigned int dcplb_table[page_descriptor_table_size][2]; + +int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]) +{ + __asm__ __volatile__("cli r3;" "P0 = %0;" "JUMP (P0);"::"r"(L1_ISRAM) + ); + + return 0; +} + +/* These functions are just used to satisfy the linker */ +int cpu_init(void) +{ + return 0; +} + +int cleanup_before_linux(void) +{ + return 0; +} + +void icache_enable(void) +{ + unsigned int *I0, *I1; + int i, j = 0; + + /* Before enable icache, disable it first */ + icache_disable(); + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + + /* make sure the locked ones go in first */ + for (i = 0; i < page_descriptor_table_size; i++) { + if (CPLB_LOCK & icplb_table[i][1]) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + icplb_table[i][0], icplb_table[i][1]); + *I0++ = icplb_table[i][0]; + *I1++ = icplb_table[i][1]; + j++; + } + } + + for (i = 0; i < page_descriptor_table_size; i++) { + if (!(CPLB_LOCK & icplb_table[i][1])) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + icplb_table[i][0], icplb_table[i][1]); + *I0++ = icplb_table[i][0]; + *I1++ = icplb_table[i][1]; + j++; + if (j == 16) { + break; + } + } + } + + /* Fill the rest with invalid entry */ + if (j <= 15) { + for (; j < 16; j++) { + debug("filling %i with 0", j); + *I1++ = 0x0; + } + + } + + cli(); + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB; + sync(); + sti(); +} + +void icache_disable(void) +{ + cli(); + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB); + sync(); + sti(); +} + +int icache_status(void) +{ + unsigned int value; + value = *(unsigned int *)IMEM_CONTROL; + + if (value & (IMC | ENICPLB)) + return CACHE_ON; + else + return CACHE_OFF; +} + +void dcache_enable(void) +{ + unsigned int *I0, *I1; + unsigned int temp; + int i, j = 0; + + /* Before enable dcache, disable it first */ + dcache_disable(); + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + + /* make sure the locked ones go in first */ + for (i = 0; i < page_descriptor_table_size; i++) { + if (CPLB_LOCK & dcplb_table[i][1]) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + *I0++ = dcplb_table[i][0]; + *I1++ = dcplb_table[i][1]; + j++; + } else { + debug("skip %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + } + } + + for (i = 0; i < page_descriptor_table_size; i++) { + if (!(CPLB_LOCK & dcplb_table[i][1])) { + debug("adding %02i %02i 0x%08x 0x%08x\n", i, j, + dcplb_table[i][0], dcplb_table[i][1]); + *I0++ = dcplb_table[i][0]; + *I1++ = dcplb_table[i][1]; + j++; + if (j == 16) { + break; + } + } + } + + /* Fill the rest with invalid entry */ + if (j <= 15) { + for (; j < 16; j++) { + debug("filling %i with 0", j); + *I1++ = 0x0; + } + } + + cli(); + temp = *(unsigned int *)DMEM_CONTROL; + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL = + ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | temp; + sync(); + sti(); +} + +void dcache_disable(void) +{ + + unsigned int *I0, *I1; + int i; + + cli(); + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL &= + ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + sync(); + sti(); + + /* after disable dcache, clear it so we don't confuse the next application */ + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + + for (i = 0; i < 16; i++) { + *I0++ = 0x0; + *I1++ = 0x0; + } +} + +int dcache_status(void) +{ + unsigned int value; + value = *(unsigned int *)DMEM_CONTROL; + if (value & (ENDCPLB)) + return CACHE_ON; + else + return CACHE_OFF; +} diff --git a/cpu/bf561/cpu.h b/cpu/bf561/cpu.h new file mode 100644 index 0000000..b6b73b1 --- /dev/null +++ b/cpu/bf561/cpu.h @@ -0,0 +1,66 @@ +/* + * U-boot - cpu.h + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef _CPU_H_ +#define _CPU_H_ + +#include <command.h> + +#define INTERNAL_IRQS (32) +#define NUM_IRQ_NODES 16 +#define DEF_INTERRUPT_FLAGS 1 +#define MAX_TIM_LOAD 0xFFFFFFFF + +void blackfin_irq_panic(int reason, struct pt_regs *reg); +extern void dump(struct pt_regs *regs); +void display_excp(void); +asmlinkage void evt_nmi(void); +asmlinkage void evt_exception(void); +asmlinkage void trap(void); +asmlinkage void evt_ivhw(void); +asmlinkage void evt_rst(void); +asmlinkage void evt_timer(void); +asmlinkage void evt_evt7(void); +asmlinkage void evt_evt8(void); +asmlinkage void evt_evt9(void); +asmlinkage void evt_evt10(void); +asmlinkage void evt_evt11(void); +asmlinkage void evt_evt12(void); +asmlinkage void evt_evt13(void); +asmlinkage void evt_soft_int1(void); +asmlinkage void evt_system_call(void); +void blackfin_irq_panic(int reason, struct pt_regs *regs); +void blackfin_free_irq(unsigned int irq, void *dev_id); +void call_isr(int irq, struct pt_regs *fp); +void blackfin_do_irq(int vec, struct pt_regs *fp); +void blackfin_init_IRQ(void); +void blackfin_enable_irq(unsigned int irq); +void blackfin_disable_irq(unsigned int irq); +extern int do_reset(cmd_tbl_t * cmdtp, int flag, int argc, char *argv[]); +int blackfin_request_irq(unsigned int irq, + void (*handler) (int, void *, struct pt_regs *), + unsigned long flags, const char *devname, + void *dev_id); +void timer_init(void); +#endif diff --git a/cpu/bf561/flush.S b/cpu/bf561/flush.S new file mode 100644 index 0000000..0140a60 --- /dev/null +++ b/cpu/bf561/flush.S @@ -0,0 +1,402 @@ +/* Copyright (C) 2003-2007 Analog Devices Inc. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. + */ + +#define ASSEMBLY + +#include <asm/linkage.h> +#include <asm/cplb.h> +#include <config.h> +#include <asm/blackfin.h> + +.text + +/* This is an external function being called by the user + * application through __flush_cache_all. Currently this function + * serves the purpose of flushing all the pending writes in + * in the instruction cache. + */ + +ENTRY(_flush_instruction_cache) + [--SP] = ( R7:6, P5:4 ); + LINK 12; + SP += -12; + P5.H = (ICPLB_ADDR0 >> 16); + P5.L = (ICPLB_ADDR0 & 0xFFFF); + P4.H = (ICPLB_DATA0 >> 16); + P4.L = (ICPLB_DATA0 & 0xFFFF); + R7 = CPLB_VALID | CPLB_L1_CHBL; + R6 = 16; +inext: R0 = [P5++]; + R1 = [P4++]; + [--SP] = RETS; + CALL _icplb_flush; /* R0 = page, R1 = data*/ + RETS = [SP++]; +iskip: R6 += -1; + CC = R6; + IF CC JUMP inext; + SSYNC; + SP += 12; + UNLINK; + ( R7:6, P5:4 ) = [SP++]; + RTS; + +/* This is an internal function to flush all pending + * writes in the cache associated with a particular ICPLB. + * + * R0 - page's start address + * R1 - CPLB's data field. + */ + +.align 2 +ENTRY(_icplb_flush) + [--SP] = ( R7:0, P5:0 ); + [--SP] = LC0; + [--SP] = LT0; + [--SP] = LB0; + [--SP] = LC1; + [--SP] = LT1; + [--SP] = LB1; + + /* If it's a 1K or 4K page, then it's quickest to + * just systematically flush all the addresses in + * the page, regardless of whether they're in the + * cache, or dirty. If it's a 1M or 4M page, there + * are too many addresses, and we have to search the + * cache for lines corresponding to the page. + */ + + CC = BITTST(R1, 17); /* 1MB or 4MB */ + IF !CC JUMP iflush_whole_page; + + /* We're only interested in the page's size, so extract + * this from the CPLB (bits 17:16), and scale to give an + * offset into the page_size and page_prefix tables. + */ + + R1 <<= 14; + R1 >>= 30; + R1 <<= 2; + + /* We can also determine the sub-bank used, because this is + * taken from bits 13:12 of the address. + */ + + R3 = ((12<<8)|2); /* Extraction pattern */ + nop; /*Anamoly 05000209*/ + R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/ + R3.H = R4.L << 0 ; /* Save in extraction pattern for later deposit.*/ + + + /* So: + * R0 = Page start + * R1 = Page length (actually, offset into size/prefix tables) + * R3 = sub-bank deposit values + * + * The cache has 2 Ways, and 64 sets, so we iterate through + * the sets, accessing the tag for each Way, for our Bank and + * sub-bank, looking for dirty, valid tags that match our + * address prefix. + */ + + P5.L = (ITEST_COMMAND & 0xFFFF); + P5.H = (ITEST_COMMAND >> 16); + P4.L = (ITEST_DATA0 & 0xFFFF); + P4.H = (ITEST_DATA0 >> 16); + + P0.L = page_prefix_table; + P0.H = page_prefix_table; + P1 = R1; + R5 = 0; /* Set counter*/ + P0 = P1 + P0; + R4 = [P0]; /* This is the address prefix*/ + + /* We're reading (bit 1==0) the tag (bit 2==0), and we + * don't care about which double-word, since we're only + * fetching tags, so we only have to set Set, Bank, + * Sub-bank and Way. + */ + + P2 = 4; + LSETUP (ifs1, ife1) LC1 = P2; +ifs1: P0 = 32; /* iterate over all sets*/ + LSETUP (ifs0, ife0) LC0 = P0; +ifs0: R6 = R5 << 5; /* Combine set*/ + R6.H = R3.H << 0 ; /* and sub-bank*/ + [P5] = R6; /* Issue Command*/ + SSYNC; /* CSYNC will not work here :(*/ + R7 = [P4]; /* and read Tag.*/ + CC = BITTST(R7, 0); /* Check if valid*/ + IF !CC JUMP ifskip; /* and skip if not.*/ + + /* Compare against the page address. First, plant bits 13:12 + * into the tag, since those aren't part of the returned data. + */ + + R7 = DEPOSIT(R7, R3); /* set 13:12*/ + R1 = R7 & R4; /* Mask off lower bits*/ + CC = R1 == R0; /* Compare against page start.*/ + IF !CC JUMP ifskip; /* Skip it if it doesn't match.*/ + + /* Tag address matches against page, so this is an entry + * we must flush. + */ + + R7 >>= 10; /* Mask off the non-address bits*/ + R7 <<= 10; + P3 = R7; + IFLUSH [P3]; /* And flush the entry*/ +ifskip: +ife0: R5 += 1; /* Advance to next Set*/ +ife1: NOP; + +ifinished: + SSYNC; /* Ensure the data gets out to mem.*/ + + /*Finished. Restore context.*/ + LB1 = [SP++]; + LT1 = [SP++]; + LC1 = [SP++]; + LB0 = [SP++]; + LT0 = [SP++]; + LC0 = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +iflush_whole_page: + /* It's a 1K or 4K page, so quicker to just flush the + * entire page. + */ + + P1 = 32; /* For 1K pages*/ + P2 = P1 << 2; /* For 4K pages*/ + P0 = R0; /* Start of page*/ + CC = BITTST(R1, 16); /* Whether 1K or 4K*/ + IF CC P1 = P2; + P1 += -1; /* Unroll one iteration*/ + SSYNC; + IFLUSH [P0++]; /* because CSYNC can't end loops.*/ + LSETUP (isall, ieall) LC0 = P1; +isall:IFLUSH [P0++]; +ieall: NOP; + SSYNC; + JUMP ifinished; + +/* This is an external function being called by the user + * application through __flush_cache_all. Currently this function + * serves the purpose of flushing all the pending writes in + * in the data cache. + */ + +ENTRY(_flush_data_cache) + [--SP] = ( R7:6, P5:4 ); + LINK 12; + SP += -12; + P5.H = (DCPLB_ADDR0 >> 16); + P5.L = (DCPLB_ADDR0 & 0xFFFF); + P4.H = (DCPLB_DATA0 >> 16); + P4.L = (DCPLB_DATA0 & 0xFFFF); + R7 = CPLB_VALID | CPLB_L1_CHBL | CPLB_DIRTY (Z); + R6 = 16; +next: R0 = [P5++]; + R1 = [P4++]; + CC = BITTST(R1, 14); /* Is it write-through?*/ + IF CC JUMP skip; /* If so, ignore it.*/ + R2 = R1 & R7; /* Is it a dirty, cached page?*/ + CC = R2; + IF !CC JUMP skip; /* If not, ignore it.*/ + [--SP] = RETS; + CALL _dcplb_flush; /* R0 = page, R1 = data*/ + RETS = [SP++]; +skip: R6 += -1; + CC = R6; + IF CC JUMP next; + SSYNC; + SP += 12; + UNLINK; + ( R7:6, P5:4 ) = [SP++]; + RTS; + +/* This is an internal function to flush all pending + * writes in the cache associated with a particular DCPLB. + * + * R0 - page's start address + * R1 - CPLB's data field. + */ + +.align 2 +ENTRY(_dcplb_flush) + [--SP] = ( R7:0, P5:0 ); + [--SP] = LC0; + [--SP] = LT0; + [--SP] = LB0; + [--SP] = LC1; + [--SP] = LT1; + [--SP] = LB1; + + /* If it's a 1K or 4K page, then it's quickest to + * just systematically flush all the addresses in + * the page, regardless of whether they're in the + * cache, or dirty. If it's a 1M or 4M page, there + * are too many addresses, and we have to search the + * cache for lines corresponding to the page. + */ + + CC = BITTST(R1, 17); /* 1MB or 4MB */ + IF !CC JUMP dflush_whole_page; + + /* We're only interested in the page's size, so extract + * this from the CPLB (bits 17:16), and scale to give an + * offset into the page_size and page_prefix tables. + */ + + R1 <<= 14; + R1 >>= 30; + R1 <<= 2; + + /* The page could be mapped into Bank A or Bank B, depending + * on (a) whether both banks are configured as cache, and + * (b) on whether address bit A[x] is set. x is determined + * by DCBS in DMEM_CONTROL + */ + + R2 = 0; /* Default to Bank A (Bank B would be 1)*/ + + P0.L = (DMEM_CONTROL & 0xFFFF); + P0.H = (DMEM_CONTROL >> 16); + + R3 = [P0]; /* If Bank B is not enabled as cache*/ + CC = BITTST(R3, 2); /* then Bank A is our only option.*/ + IF CC JUMP bank_chosen; + + R4 = 1<<14; /* If DCBS==0, use A[14].*/ + R5 = R4 << 7; /* If DCBS==1, use A[23];*/ + CC = BITTST(R3, 4); + IF CC R4 = R5; /* R4 now has either bit 14 or bit 23 set.*/ + R5 = R0 & R4; /* Use it to test the Page address*/ + CC = R5; /* and if that bit is set, we use Bank B,*/ + R2 = CC; /* else we use Bank A.*/ + R2 <<= 23; /* The Bank selection's at posn 23.*/ + +bank_chosen: + + /* We can also determine the sub-bank used, because this is + * taken from bits 13:12 of the address. + */ + + R3 = ((12<<8)|2); /* Extraction pattern */ + nop; /*Anamoly 05000209*/ + R4 = EXTRACT(R0, R3.L) (Z); /* Extract bits*/ + /* Save in extraction pattern for later deposit.*/ + R3.H = R4.L << 0; + + /* So: + * R0 = Page start + * R1 = Page length (actually, offset into size/prefix tables) + * R2 = Bank select mask + * R3 = sub-bank deposit values + * + * The cache has 2 Ways, and 64 sets, so we iterate through + * the sets, accessing the tag for each Way, for our Bank and + * sub-bank, looking for dirty, valid tags that match our + * address prefix. + */ + + P5.L = (DTEST_COMMAND & 0xFFFF); + P5.H = (DTEST_COMMAND >> 16); + P4.L = (DTEST_DATA0 & 0xFFFF); + P4.H = (DTEST_DATA0 >> 16); + + P0.L = page_prefix_table; + P0.H = page_prefix_table; + P1 = R1; + R5 = 0; /* Set counter*/ + P0 = P1 + P0; + R4 = [P0]; /* This is the address prefix*/ + + + /* We're reading (bit 1==0) the tag (bit 2==0), and we + * don't care about which double-word, since we're only + * fetching tags, so we only have to set Set, Bank, + * Sub-bank and Way. + */ + + P2 = 2; + LSETUP (fs1, fe1) LC1 = P2; +fs1: P0 = 64; /* iterate over all sets*/ + LSETUP (fs0, fe0) LC0 = P0; +fs0: R6 = R5 << 5; /* Combine set*/ + R6.H = R3.H << 0 ; /* and sub-bank*/ + R6 = R6 | R2; /* and Bank. Leave Way==0 at first.*/ + BITSET(R6,14); + [P5] = R6; /* Issue Command*/ + SSYNC; + R7 = [P4]; /* and read Tag.*/ + CC = BITTST(R7, 0); /* Check if valid*/ + IF !CC JUMP fskip; /* and skip if not.*/ + CC = BITTST(R7, 1); /* Check if dirty*/ + IF !CC JUMP fskip; /* and skip if not.*/ + + /* Compare against the page address. First, plant bits 13:12 + * into the tag, since those aren't part of the returned data. + */ + + R7 = DEPOSIT(R7, R3); /* set 13:12*/ + R1 = R7 & R4; /* Mask off lower bits*/ + CC = R1 == R0; /* Compare against page start.*/ + IF !CC JUMP fskip; /* Skip it if it doesn't match.*/ + + /* Tag address matches against page, so this is an entry + * we must flush. + */ + + R7 >>= 10; /* Mask off the non-address bits*/ + R7 <<= 10; + P3 = R7; + SSYNC; + FLUSHINV [P3]; /* And flush the entry*/ +fskip: +fe0: R5 += 1; /* Advance to next Set*/ +fe1: BITSET(R2, 26); /* Go to next Way.*/ + +dfinished: + SSYNC; /* Ensure the data gets out to mem.*/ + + /*Finished. Restore context.*/ + LB1 = [SP++]; + LT1 = [SP++]; + LC1 = [SP++]; + LB0 = [SP++]; + LT0 = [SP++]; + LC0 = [SP++]; + ( R7:0, P5:0 ) = [SP++]; + RTS; + +dflush_whole_page: + + /* It's a 1K or 4K page, so quicker to just flush the + * entire page. + */ + + P1 = 32; /* For 1K pages*/ + P2 = P1 << 2; /* For 4K pages*/ + P0 = R0; /* Start of page*/ + CC = BITTST(R1, 16); /* Whether 1K or 4K*/ + IF CC P1 = P2; + P1 += -1; /* Unroll one iteration*/ + SSYNC; + FLUSHINV [P0++]; /* because CSYNC can't end loops.*/ + LSETUP (eall, eall) LC0 = P1; +eall: FLUSHINV [P0++]; + SSYNC; + JUMP dfinished; + +.align 4; +page_prefix_table: +.byte4 0xFFFFFC00; /* 1K */ +.byte4 0xFFFFF000; /* 4K */ +.byte4 0xFFF00000; /* 1M */ +.byte4 0xFFC00000; /* 4M */ +.page_prefix_table.end: diff --git a/cpu/bf561/init_sdram.S b/cpu/bf561/init_sdram.S new file mode 100644 index 0000000..d763f27 --- /dev/null +++ b/cpu/bf561/init_sdram.S @@ -0,0 +1,171 @@ +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> +#include <asm/mem_init.h> +.global init_sdram; + +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif + +init_sdram: + [--SP] = ASTAT; + [--SP] = RETS; + [--SP] = (R7:0); + [--SP] = (P5:0); + + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2? */ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + /* + * We now are running at speed, time to set the Async mem bank wait states + * This will speed up execution, since we are normally running from FLASH. + */ + + p2.h = (EBIU_AMBCTL1 >> 16); + p2.l = (EBIU_AMBCTL1 & 0xFFFF); + r0.h = (AMBCTL1VAL >> 16); + r0.l = (AMBCTL1VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMBCTL0 >> 16); + p2.l = (EBIU_AMBCTL0 & 0xFFFF); + r0.h = (AMBCTL0VAL >> 16); + r0.l = (AMBCTL0VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMGCTL >> 16); + p2.l = (EBIU_AMGCTL & 0xffff); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* + * Now, Initialize the SDRAM, + * start with the SDRAM Refresh Rate Control Register + */ + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Memory Bank Control Register - bank specific parameters + */ + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Global Control Register - global programmable parameters + * Disable self-refresh + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + + /* + * Check if SDRAM is already powered up, if it is, enable self-refresh + */ + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump skip; + NOP; + BITSET (R0, 23); +skip: + [P2] = R0; + SSYNC; + + /* Write in the new value in the register */ + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + [P2] = R0; + SSYNC; + nop; + + (P5:0) = [SP++]; + (R7:0) = [SP++]; + RETS = [SP++]; + ASTAT = [SP++]; + RTS; diff --git a/cpu/bf561/init_sdram_bootrom_initblock.S b/cpu/bf561/init_sdram_bootrom_initblock.S new file mode 100644 index 0000000..5e3c88a --- /dev/null +++ b/cpu/bf561/init_sdram_bootrom_initblock.S @@ -0,0 +1,185 @@ +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> +#include <asm/mem_init.h> +.global init_sdram; + +#if (CONFIG_CCLK_DIV == 1) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV1 +#endif +#if (CONFIG_CCLK_DIV == 2) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV2 +#endif +#if (CONFIG_CCLK_DIV == 4) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV4 +#endif +#if (CONFIG_CCLK_DIV == 8) +#define CONFIG_CCLK_ACT_DIV CCLK_DIV8 +#endif +#ifndef CONFIG_CCLK_ACT_DIV +#define CONFIG_CCLK_ACT_DIV CONFIG_CCLK_DIV_not_defined_properly +#endif + +init_sdram: + [--SP] = ASTAT; + [--SP] = RETS; + [--SP] = (R7:0); + [--SP] = (P5:0); + + + p0.h = hi(SICA_IWR0); + p0.l = lo(SICA_IWR0); + r0.l = 0x1; + w[p0] = r0.l; + SSYNC; + + p0.h = hi(SPI_BAUD); + p0.l = lo(SPI_BAUD); + r0.l = CONFIG_SPI_BAUD_INITBLOCK; + w[p0] = r0.l; + SSYNC; + + /* + * PLL_LOCKCNT - how many SCLK Cycles to delay while PLL becomes stable + */ + p0.h = hi(PLL_LOCKCNT); + p0.l = lo(PLL_LOCKCNT); + r0 = 0x300(Z); + w[p0] = r0.l; + ssync; + + /* + * Put SDRAM in self-refresh, incase anything is running + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITSET (R0, 24); + [P2] = R0; + SSYNC; + + /* + * Set PLL_CTL with the value that we calculate in R0 + * - [14:09] = MSEL[5:0] : CLKIN / VCO multiplication factors + * - [8] = BYPASS : BYPASS the PLL, run CLKIN into CCLK/SCLK + * - [7] = output delay (add 200ps of delay to mem signals) + * - [6] = input delay (add 200ps of input delay to mem signals) + * - [5] = PDWN : 1=All Clocks off + * - [3] = STOPCK : 1=Core Clock off + * - [1] = PLL_OFF : 1=Disable Power to PLL + * - [0] = DF : 1=Pass CLKIN/2 to PLL / 0=Pass CLKIN to PLL + * all other bits set to zero + */ + + r0 = CONFIG_VCO_MULT & 63; /* Load the VCO multiplier */ + r0 = r0 << 9; /* Shift it over, */ + r1 = CONFIG_CLKIN_HALF; /* Do we need to divide CLKIN by 2? */ + r0 = r1 | r0; + r1 = CONFIG_PLL_BYPASS; /* Bypass the PLL? */ + r1 = r1 << 8; /* Shift it over */ + r0 = r1 | r0; /* add them all together */ + + p0.h = hi(PLL_CTL); + p0.l = lo(PLL_CTL); /* Load the address */ + cli r2; /* Disable interrupts */ + ssync; + w[p0] = r0.l; /* Set the value */ + idle; /* Wait for the PLL to stablize */ + sti r2; /* Enable interrupts */ + +check_again: + p0.h = hi(PLL_STAT); + p0.l = lo(PLL_STAT); + R0 = W[P0](Z); + CC = BITTST(R0,5); + if ! CC jump check_again; + + /* Configure SCLK & CCLK Dividers */ + r0 = (CONFIG_CCLK_ACT_DIV | CONFIG_SCLK_DIV); + p0.h = hi(PLL_DIV); + p0.l = lo(PLL_DIV); + w[p0] = r0.l; + ssync; + + /* + * We now are running at speed, time to set the Async mem bank wait states + * This will speed up execution, since we are normally running from FLASH. + */ + + p2.h = (EBIU_AMBCTL1 >> 16); + p2.l = (EBIU_AMBCTL1 & 0xFFFF); + r0.h = (AMBCTL1VAL >> 16); + r0.l = (AMBCTL1VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMBCTL0 >> 16); + p2.l = (EBIU_AMBCTL0 & 0xFFFF); + r0.h = (AMBCTL0VAL >> 16); + r0.l = (AMBCTL0VAL & 0xFFFF); + [p2] = r0; + ssync; + + p2.h = (EBIU_AMGCTL >> 16); + p2.l = (EBIU_AMGCTL & 0xffff); + r0 = AMGCTLVAL; + w[p2] = r0; + ssync; + + /* + * Now, Initialize the SDRAM, + * start with the SDRAM Refresh Rate Control Register + */ + p0.l = lo(EBIU_SDRRC); + p0.h = hi(EBIU_SDRRC); + r0 = mem_SDRRC; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Memory Bank Control Register - bank specific parameters + */ + p0.l = (EBIU_SDBCTL & 0xFFFF); + p0.h = (EBIU_SDBCTL >> 16); + r0 = mem_SDBCTL; + w[p0] = r0.l; + ssync; + + /* + * SDRAM Global Control Register - global programmable parameters + * Disable self-refresh + */ + P2.H = hi(EBIU_SDGCTL); + P2.L = lo(EBIU_SDGCTL); + R0 = [P2]; + BITCLR (R0, 24); + + /* + * Check if SDRAM is already powered up, if it is, enable self-refresh + */ + p0.h = hi(EBIU_SDSTAT); + p0.l = lo(EBIU_SDSTAT); + r2.l = w[p0]; + cc = bittst(r2,3); + if !cc jump skip; + NOP; + BITSET (R0, 23); +skip: + [P2] = R0; + SSYNC; + + /* Write in the new value in the register */ + R0.L = lo(mem_SDGCTL); + R0.H = hi(mem_SDGCTL); + [P2] = R0; + SSYNC; + nop; + + + (P5:0) = [SP++]; + (R7:0) = [SP++]; + RETS = [SP++]; + ASTAT = [SP++]; + RTS; diff --git a/cpu/bf561/interrupt.S b/cpu/bf561/interrupt.S new file mode 100644 index 0000000..21839ce --- /dev/null +++ b/cpu/bf561/interrupt.S @@ -0,0 +1,246 @@ +/* + * U-boot - interrupt.S Processing of interrupts and exception handling + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * This file is based on interrupt.S + * + * Copyright (C) 2003 Metrowerks, Inc. <mwaddel@metrowerks.com> + * Copyright (C) 2002 Arcturus Networks Ltd. Ted Ma <mated@sympatico.ca> + * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * + * (c) 1995, Dionne & Associates + * (c) 1995, DKG Display Tech. + * + * This file is also based on exception.asm + * (C) Copyright 2001-2005 - Analog Devices, Inc. All rights reserved. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#define ASSEMBLY +#include <config.h> +#include <asm/blackfin.h> +#include <asm/hw_irq.h> +#include <asm/entry.h> +#include <asm/blackfin_defs.h> + +.global _blackfin_irq_panic; + +.text +.align 2 + +#ifndef CONFIG_KGDB +.global _evt_emulation +_evt_emulation: + SAVE_CONTEXT + r0 = IRQ_EMU; + r1 = seqstat; + sp += -12; + call _blackfin_irq_panic; + sp += 12; + rte; +#endif + +.global _evt_nmi +_evt_nmi: + SAVE_CONTEXT + r0 = IRQ_NMI; + r1 = RETN; + sp += -12; + call _blackfin_irq_panic; + sp += 12; + +_evt_nmi_exit: + rtn; + +.global _trap +_trap: + SAVE_ALL_SYS + r0 = sp; /* stack frame pt_regs pointer argument ==> r0 */ + sp += -12; + call _trap_c + sp += 12; + RESTORE_ALL_SYS + rtx; + +.global _evt_rst +_evt_rst: + SAVE_CONTEXT + r0 = IRQ_RST; + r1 = RETN; + sp += -12; + call _do_reset; + sp += 12; + +_evt_rst_exit: + rtn; + +irq_panic: + r0 = IRQ_EVX; + r1 = sp; + sp += -12; + call _blackfin_irq_panic; + sp += 12; + +.global _evt_ivhw +_evt_ivhw: + SAVE_CONTEXT + RAISE 14; + +_evt_ivhw_exit: + rti; + +.global _evt_timer +_evt_timer: + SAVE_CONTEXT + r0 = IRQ_CORETMR; + sp += -12; + /* Polling method used now. */ + /* call timer_int; */ + sp += 12; + RESTORE_CONTEXT + rti; + nop; + +.global _evt_evt7 +_evt_evt7: + SAVE_CONTEXT + r0 = 7; + sp += -12; + call _process_int; + sp += 12; + +evt_evt7_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt8 +_evt_evt8: + SAVE_CONTEXT + r0 = 8; + sp += -12; + call _process_int; + sp += 12; + +evt_evt8_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt9 +_evt_evt9: + SAVE_CONTEXT + r0 = 9; + sp += -12; + call _process_int; + sp += 12; + +evt_evt9_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt10 +_evt_evt10: + SAVE_CONTEXT + r0 = 10; + sp += -12; + call _process_int; + sp += 12; + +evt_evt10_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt11 +_evt_evt11: + SAVE_CONTEXT + r0 = 11; + sp += -12; + call _process_int; + sp += 12; + +evt_evt11_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt12 +_evt_evt12: + SAVE_CONTEXT + r0 = 12; + sp += -12; + call _process_int; + sp += 12; +evt_evt12_exit: + RESTORE_CONTEXT + rti; + +.global _evt_evt13 +_evt_evt13: + SAVE_CONTEXT + r0 = 13; + sp += -12; + call _process_int; + sp += 12; + +evt_evt13_exit: + RESTORE_CONTEXT + rti; + +.global _evt_system_call +_evt_system_call: + [--sp] = r0; + [--SP] = RETI; + r0 = [sp++]; + r0 += 2; + [--sp] = r0; + RETI = [SP++]; + r0 = [SP++]; + SAVE_CONTEXT + sp += -12; + call _exception_handle; + sp += 12; + RESTORE_CONTEXT + RTI; + +evt_system_call_exit: + rti; + +.global _evt_soft_int1 +_evt_soft_int1: + [--sp] = r0; + [--SP] = RETI; + r0 = [sp++]; + r0 += 2; + [--sp] = r0; + RETI = [SP++]; + r0 = [SP++]; + SAVE_CONTEXT + sp += -12; + call _exception_handle; + sp += 12; + RESTORE_CONTEXT + RTI; + +evt_soft_int1_exit: + rti; diff --git a/cpu/bf561/interrupts.c b/cpu/bf561/interrupts.c new file mode 100644 index 0000000..ecbc6ad --- /dev/null +++ b/cpu/bf561/interrupts.c @@ -0,0 +1,171 @@ +/* + * U-boot - interrupts.c Interrupt related routines + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on interrupts.c + * Copyright 1996 Roman Zippel + * Copyright 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca> + * Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> + * Copyright 2003 Metrowerks/Motorola + * Copyright 2003 Bas Vermeulen <bas@buyways.nl>, + * BuyWays B.V. (www.buyways.nl) + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/machdep.h> +#include <asm/irq.h> +#include <config.h> +#include <asm/blackfin.h> +#include "cpu.h" + +static ulong timestamp; +static ulong last_time; +static int int_flag; + +int irq_flags; /* needed by asm-blackfin/system.h */ + +/* Functions just to satisfy the linker */ + +/* + * This function is derived from PowerPC code (read timebase as long long). + * On BF561 it just returns the timer value. + */ +unsigned long long get_ticks(void) +{ + return get_timer(0); +} + +/* + * This function is derived from PowerPC code (timebase clock frequency). + * On BF561 it returns the number of timer ticks per second. + */ +ulong get_tbclk(void) +{ + ulong tbclk; + + tbclk = CFG_HZ; + return tbclk; +} + +void enable_interrupts(void) +{ + restore_flags(int_flag); +} + +int disable_interrupts(void) +{ + save_and_cli(int_flag); + return 1; +} + +int interrupt_init(void) +{ + return (0); +} + +void udelay(unsigned long usec) +{ + unsigned long delay, start, stop; + unsigned long cclk; + cclk = (CONFIG_CCLK_HZ); + + while (usec > 1) { + /* + * how many clock ticks to delay? + * - request(in useconds) * clock_ticks(Hz) / useconds/second + */ + if (usec < 1000) { + delay = (usec * (cclk / 244)) >> 12; + usec = 0; + } else { + delay = (1000 * (cclk / 244)) >> 12; + usec -= 1000; + } + + asm volatile (" %0 = CYCLES;":"=r" (start)); + do { + asm volatile (" %0 = CYCLES; ":"=r" (stop)); + } while (stop - start < delay); + } + + return; +} + +void timer_init(void) +{ + *pTCNTL = 0x1; + *pTSCALE = 0x0; + *pTCOUNT = MAX_TIM_LOAD; + *pTPERIOD = MAX_TIM_LOAD; + *pTCNTL = 0x7; + asm("CSYNC;"); + + timestamp = 0; + last_time = 0; +} + +/* + * Any network command or flash + * command is started get_timer shall + * be called before TCOUNT gets reset, + * to implement the accurate timeouts. + * + * How ever milliconds doesn't return + * the number that has been elapsed from + * the last reset. + * + * As get_timer is used in the u-boot + * only for timeouts this should be + * sufficient + */ +ulong get_timer(ulong base) +{ + ulong milisec; + + /* Number of clocks elapsed */ + ulong clocks = (MAX_TIM_LOAD - (*pTCOUNT)); + + /* + * Find if the TCOUNT is reset + * timestamp gives the number of times + * TCOUNT got reset + */ + if (clocks < last_time) + timestamp++; + last_time = clocks; + + /* Get the number of milliseconds */ + milisec = clocks / (CONFIG_CCLK_HZ / 1000); + + /* + * Find the number of millisonds + * that got elapsed before this TCOUNT + * cycle + */ + milisec += timestamp * (MAX_TIM_LOAD / (CONFIG_CCLK_HZ / 1000)); + + return (milisec - base); +} diff --git a/cpu/bf561/ints.c b/cpu/bf561/ints.c new file mode 100644 index 0000000..27a38a3 --- /dev/null +++ b/cpu/bf561/ints.c @@ -0,0 +1,117 @@ +/* + * U-boot - ints.c Interrupt related routines + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on ints.c + * + * Apr18 2003, Changed by HuTao to support interrupt cascading for Blackfin + * drivers + * + * Copyright 1996 Roman Zippel + * Copyright 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright 2000-2001 Lineo, Inc. D. Jefff Dionne <jeff@lineo.ca> + * Copyright 2002 Arcturus Networks Inc. MaTed <mated@sympatico.ca> + * Copyright 2003 Metrowerks/Motorola + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <linux/stddef.h> +#include <asm/system.h> +#include <asm/irq.h> +#include <asm/traps.h> +#include <asm/io.h> +#include <asm/errno.h> +#include <asm/machdep.h> +#include <asm/setup.h> +#include <asm/blackfin.h> +#include "cpu.h" + +void blackfin_irq_panic(int reason, struct pt_regs *regs) +{ + printf("\n\nException: IRQ 0x%x entered\n", reason); + printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f)); + printf("stack frame=0x%x, ", (unsigned int)regs); + printf("bad PC=0x%04x\n", (unsigned int)regs->pc); + dump(regs); + printf("Unhandled IRQ or exceptions!\n"); + printf("Please reset the board \n"); +} + +void blackfin_init_IRQ(void) +{ + *(unsigned volatile long *)(SIC_IMASK) = SIC_UNMASK_ALL; + cli(); +#ifndef CONFIG_KGDB + *(unsigned volatile long *)(EVT_EMULATION_ADDR) = 0x0; +#endif + *(unsigned volatile long *)(EVT_NMI_ADDR) = + (unsigned volatile long)evt_nmi; + *(unsigned volatile long *)(EVT_EXCEPTION_ADDR) = + (unsigned volatile long)trap; + *(unsigned volatile long *)(EVT_HARDWARE_ERROR_ADDR) = + (unsigned volatile long)evt_ivhw; + *(unsigned volatile long *)(EVT_RESET_ADDR) = + (unsigned volatile long)evt_rst; + *(unsigned volatile long *)(EVT_TIMER_ADDR) = + (unsigned volatile long)evt_timer; + *(unsigned volatile long *)(EVT_IVG7_ADDR) = + (unsigned volatile long)evt_evt7; + *(unsigned volatile long *)(EVT_IVG8_ADDR) = + (unsigned volatile long)evt_evt8; + *(unsigned volatile long *)(EVT_IVG9_ADDR) = + (unsigned volatile long)evt_evt9; + *(unsigned volatile long *)(EVT_IVG10_ADDR) = + (unsigned volatile long)evt_evt10; + *(unsigned volatile long *)(EVT_IVG11_ADDR) = + (unsigned volatile long)evt_evt11; + *(unsigned volatile long *)(EVT_IVG12_ADDR) = + (unsigned volatile long)evt_evt12; + *(unsigned volatile long *)(EVT_IVG13_ADDR) = + (unsigned volatile long)evt_evt13; + *(unsigned volatile long *)(EVT_IVG14_ADDR) = + (unsigned volatile long)evt_system_call; + *(unsigned volatile long *)(EVT_IVG15_ADDR) = + (unsigned volatile long)evt_soft_int1; + *(volatile unsigned long *)ILAT = 0; + asm("csync;"); + sti(); + *(volatile unsigned long *)IMASK = 0xffbf; + asm("csync;"); +} + +void exception_handle(void) +{ +#if defined (CONFIG_PANIC_HANG) + display_excp(); +#else + udelay(100000); /* allow messages to go out */ + do_reset(NULL, 0, 0, NULL); +#endif +} + +void display_excp(void) +{ + printf("Exception!\n"); +} diff --git a/cpu/bf561/serial.c b/cpu/bf561/serial.c new file mode 100644 index 0000000..7f5c695 --- /dev/null +++ b/cpu/bf561/serial.c @@ -0,0 +1,196 @@ +/* + * U-boot - serial.c Serial driver for BF561 + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on + * bf533_serial.c: Serial driver for BlackFin BF533 DSP internal UART. + * Copyright (c) 2003 Bas Vermeulen <bas@buyways.nl>, + * BuyWays B.V. (www.buyways.nl) + * + * Based heavily on blkfinserial.c + * blkfinserial.c: Serial driver for BlackFin DSP internal USRTs. + * Copyright(c) 2003 Metrowerks <mwaddel@metrowerks.com> + * Copyright(c) 2001 Tony Z. Kou <tonyko@arcturusnetworks.com> + * Copyright(c) 2001-2002 Arcturus Networks Inc. <www.arcturusnetworks.com> + * + * Based on code from 68328 version serial driver imlpementation which was: + * Copyright (C) 1995 David S. Miller <davem@caip.rutgers.edu> + * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> + * Copyright (C) 1998, 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright (C) 1999 Vladimir Gurevich <vgurevic@cisco.com> + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/segment.h> +#include <asm/bitops.h> +#include <asm/delay.h> +#include <asm/uaccess.h> +#include "serial.h" +#include <asm/io.h> + +unsigned long pll_div_fact; + +void calc_baud(void) +{ + unsigned char i; + int temp; + u_long sclk = get_sclk(); + + for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) { + temp = sclk / (baud_table[i] * 8); + if ((temp & 0x1) == 1) { + temp++; + } + temp = temp / 2; + hw_baud_table[i].dl_high = (temp >> 8) & 0xFF; + hw_baud_table[i].dl_low = (temp) & 0xFF; + } +} + +void serial_setbrg(void) +{ + int i; + DECLARE_GLOBAL_DATA_PTR; + + calc_baud(); + + for (i = 0; i < sizeof(baud_table) / sizeof(int); i++) { + if (gd->baudrate == baud_table[i]) + break; + } + + /* Enable UART */ + *pUART_GCTL |= UART_GCTL_UCEN; + sync(); + + /* Set DLAB in LCR to Access DLL and DLH */ + ACCESS_LATCH; + sync(); + + *pUART_DLL = hw_baud_table[i].dl_low; + sync(); + *pUART_DLH = hw_baud_table[i].dl_high; + sync(); + + /* Clear DLAB in LCR to Access THR RBR IER */ + ACCESS_PORT_IER; + sync(); + + /* + * Enable ERBFI and ELSI interrupts + * to poll SIC_ISR register + */ + *pUART_IER = UART_IER_ELSI | UART_IER_ERBFI | UART_IER_ETBEI; + sync(); + + /* Set LCR to Word Lengh 8-bit word select */ + *pUART_LCR = UART_LCR_WLS8; + sync(); + + return; +} + +int serial_init(void) +{ + serial_setbrg(); + return (0); +} + +void serial_putc(const char c) +{ + if ((*pUART_LSR) & UART_LSR_TEMT) { + if (c == '\n') + serial_putc('\r'); + + local_put_char(c); + } + + while (!((*pUART_LSR) & UART_LSR_TEMT)) + SYNC_ALL; + + return; +} + +int serial_tstc(void) +{ + if (*pUART_LSR & UART_LSR_DR) + return 1; + else + return 0; +} + +int serial_getc(void) +{ + unsigned short uart_lsr_val, uart_rbr_val; + unsigned long isr_val; + int ret; + + /* Poll for RX Interrupt */ + while (!((isr_val = + *(volatile unsigned long *)SIC_ISR) & IRQ_UART_RX_BIT)) ; + asm("csync;"); + + uart_lsr_val = *pUART_LSR; /* Clear status bit */ + uart_rbr_val = *pUART_RBR; /* getc() */ + + if (isr_val & IRQ_UART_ERROR_BIT) { + ret = -1; + } else { + ret = uart_rbr_val & 0xff; + } + + return ret; +} + +void serial_puts(const char *s) +{ + while (*s) { + serial_putc(*s++); + } +} + +static void local_put_char(char ch) +{ + int flags = 0; + unsigned long isr_val; + + save_and_cli(flags); + + /* Poll for TX Interruput */ + while (!((isr_val = *pSIC_ISR) & IRQ_UART_TX_BIT)) ; + asm("csync;"); + + *pUART_THR = ch; /* putc() */ + + if (isr_val & IRQ_UART_ERROR_BIT) { + printf("?"); + } + + restore_flags(flags); + + return; +} diff --git a/cpu/bf561/serial.h b/cpu/bf561/serial.h new file mode 100644 index 0000000..c1cbf36 --- /dev/null +++ b/cpu/bf561/serial.h @@ -0,0 +1,77 @@ +/* + * U-boot - bf561_serial.h Serial Driver defines + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on + * bf533_serial.h: Definitions for the BlackFin BF533 DSP serial driver. + * Copyright (C) 2003 Bas Vermeulen <bas@buyways.nl> + * BuyWays B.V. (www.buyways.nl) + * + * Based heavily on: + * blkfinserial.h: Definitions for the BlackFin DSP serial driver. + * + * Copyright (C) 2001 Tony Z. Kou tonyko@arcturusnetworks.com + * Copyright (C) 2001 Arcturus Networks Inc. <www.arcturusnetworks.com> + * + * Based on code from 68328serial.c which was: + * Copyright (C) 1995 David S. Miller <davem@caip.rutgers.edu> + * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> + * Copyright (C) 1998, 1999 D. Jeff Dionne <jeff@uclinux.org> + * Copyright (C) 1999 Vladimir Gurevich <vgurevic@cisco.com> + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#ifndef _Bf561_SERIAL_H +#define _Bf561_SERIAL_H + +#include <linux/config.h> +#include <asm/blackfin.h> + +#define SYNC_ALL __asm__ __volatile__ ("ssync;\n") +#define ACCESS_LATCH *pUART_LCR |= UART_LCR_DLAB; +#define ACCESS_PORT_IER *pUART_LCR &= (~UART_LCR_DLAB); + +void serial_setbrg(void); +static void local_put_char(char ch); +void calc_baud(void); +void serial_setbrg(void); +int serial_init(void); +void serial_putc(const char c); +int serial_tstc(void); +int serial_getc(void); +void serial_puts(const char *s); +static void local_put_char(char ch); + +int baud_table[5] = { 9600, 19200, 38400, 57600, 115200 }; + +struct { + unsigned char dl_high; + unsigned char dl_low; +} hw_baud_table[5]; + +#ifdef CONFIG_STAMP +extern unsigned long pll_div_fact; +#endif + +#endif diff --git a/cpu/bf561/start.S b/cpu/bf561/start.S new file mode 100644 index 0000000..bd26cf3 --- /dev/null +++ b/cpu/bf561/start.S @@ -0,0 +1,311 @@ +/* + * U-boot - start.S Startup file of u-boot for BF533/BF561 + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on head.S + * Copyright (c) 2003 Metrowerks/Motorola + * Copyright (C) 1998 D. Jeff Dionne <jeff@ryeham.ee.ryerson.ca>, + * Kenneth Albanowski <kjahds@kjahds.com>, + * The Silver Hammer Group, Ltd. + * (c) 1995, Dionne & Associates + * (c) 1995, DKG Display Tech. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +/* + * Note: A change in this file subsequently requires a change in + * board/$(board_name)/config.mk for a valid u-boot.bin + */ + +#define ASSEMBLY + +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> + +.global _stext; +.global __bss_start; +.global start; +.global _start; +.global _rambase; +.global _ramstart; +.global _ramend; +.global edata; +.global _initialize; +.global _exit; +.global flashdataend; +.global init_sdram; + +.text +_start: +start: +_stext: + + R0 = 0x32; + SYSCFG = R0; + SSYNC; + + /* + * As per HW reference manual DAG registers, + * DATA and Address resgister shall be zero'd + * in initialization, after a reset state + */ + r1 = 0; /* Data registers zero'd */ + r2 = 0; + r3 = 0; + r4 = 0; + r5 = 0; + r6 = 0; + r7 = 0; + + p0 = 0; /* Address registers zero'd */ + p1 = 0; + p2 = 0; + p3 = 0; + p4 = 0; + p5 = 0; + + i0 = 0; /* DAG Registers zero'd */ + i1 = 0; + i2 = 0; + i3 = 0; + m0 = 0; + m1 = 0; + m3 = 0; + m3 = 0; + l0 = 0; + l1 = 0; + l2 = 0; + l3 = 0; + b0 = 0; + b1 = 0; + b2 = 0; + b3 = 0; + + /* + * Set loop counters to zero, to make sure that + * hw loops are disabled. + */ + r0 = 0; + lc0 = r0; + lc1 = r0; + + SSYNC; + + /* Check soft reset status */ + p0.h = SWRST >> 16; + p0.l = SWRST & 0xFFFF; + r0.l = w[p0]; + + cc = bittst(r0, 15); + if !cc jump no_soft_reset; + + /* Clear Soft reset */ + r0 = 0x0000; + w[p0] = r0; + ssync; + +no_soft_reset: + nop; + + /* Clear EVT registers */ + p0.h = (EVT_EMULATION_ADDR >> 16); + p0.l = (EVT_EMULATION_ADDR & 0xFFFF); + p0 += 8; + p1 = 14; + r1 = 0; + LSETUP(4,4) lc0 = p1; + [ p0 ++ ] = r1; + + p0.h = hi(SIC_IWR); + p0.l = lo(SIC_IWR); + r0.l = 0x1; + w[p0] = r0.l; + SSYNC; + + sp.l = (0xffb01000 & 0xFFFF); + sp.h = (0xffb01000 >> 16); + + /* + * Check if the code is in SDRAM + * If the code is in SDRAM, skip SDRAM initializaiton + */ + call get_pc; + r3.l = 0x0; + r3.h = 0x2000; + cc = r0 < r3 (iu); + if cc jump sdram_initialized; + call init_sdram; + /* relocate into to RAM */ +sdram_initialized: + call get_pc; +offset: + r2.l = offset; + r2.h = offset; + r3.l = start; + r3.h = start; + r1 = r2 - r3; + + r0 = r0 - r1; + p1 = r0; + + p2.l = (CFG_MONITOR_BASE & 0xffff); + p2.h = (CFG_MONITOR_BASE >> 16); + + p3 = 0x04; + p4.l = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) & 0xffff); + p4.h = ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) >> 16); +loop1: + r1 = [p1 ++ p3]; + [p2 ++ p3] = r1; + cc=p2==p4; + if !cc jump loop1; + /* + * configure STACK + */ + r0.h = (CONFIG_STACKBASE >> 16); + r0.l = (CONFIG_STACKBASE & 0xFFFF); + sp = r0; + fp = sp; + + /* + * This next section keeps the processor in supervisor mode + * during kernel boot. Switches to user mode at end of boot. + * See page 3-9 of Hardware Reference manual for documentation. + */ + + /* To keep ourselves in the supervisor mode */ + p0.l = (EVT_IVG15_ADDR & 0xFFFF); + p0.h = (EVT_IVG15_ADDR >> 16); + + p1.l = _real_start; + p1.h = _real_start; + [p0] = p1; + + p0.l = (IMASK & 0xFFFF); + p0.h = (IMASK >> 16); + r0.l = LO(IVG15_POS); + r0.h = HI(IVG15_POS); + [p0] = r0; + raise 15; + p0.l = WAIT_HERE; + p0.h = WAIT_HERE; + reti = p0; + rti; + +WAIT_HERE: + jump WAIT_HERE; + +.global _real_start; +_real_start: + [ -- sp ] = reti; + +#ifdef CONFIG_EZKIT561 + p0.l = (WDOG_CTL & 0xFFFF); + p0.h = (WDOG_CTL >> 16); + r0 = WATCHDOG_DISABLE(z); + w[p0] = r0; +#endif + + /* DMA reset code to Hi of L1 SRAM */ +copy: + P1.H = hi(SYSMMR_BASE); /* P1 Points to the beginning of SYSTEM MMR Space */ + P1.L = lo(SYSMMR_BASE); + + R0.H = reset_start; /* Source Address (high) */ + R0.L = reset_start; /* Source Address (low) */ + R1.H = reset_end; + R1.L = reset_end; + R2 = R1 - R0; /* Count */ + R1.H = hi(L1_ISRAM); /* Destination Address (high) */ + R1.L = lo(L1_ISRAM); /* Destination Address (low) */ + R3.L = DMAEN; /* Source DMAConfig Value (8-bit words) */ + R4.L = (DI_EN | WNR | DMAEN); /* Destination DMAConfig Value (8-bit words) */ + +DMA: + R6 = 0x1 (Z); + W[P1+OFFSET_(MDMA_S0_X_MODIFY)] = R6; /* Source Modify = 1 */ + W[P1+OFFSET_(MDMA_D0_X_MODIFY)] = R6; /* Destination Modify = 1 */ + + [P1+OFFSET_(MDMA_S0_START_ADDR)] = R0; /* Set Source Base Address */ + W[P1+OFFSET_(MDMA_S0_X_COUNT)] = R2; /* Set Source Count */ + /* Set Source DMAConfig = DMA Enable, + Memory Read, 8-Bit Transfers, 1-D DMA, Flow - Stop */ + W[P1+OFFSET_(MDMA_S0_CONFIG)] = R3; + + [P1+OFFSET_(MDMA_D0_START_ADDR)] = R1; /* Set Destination Base Address */ + W[P1+OFFSET_(MDMA_D0_X_COUNT)] = R2; /* Set Destination Count */ + /* Set Destination DMAConfig = DMA Enable, + Memory Write, 8-Bit Transfers, 1-D DMA, Flow - Stop, IOC */ + W[P1+OFFSET_(MDMA_D0_CONFIG)] = R4; + +WAIT_DMA_DONE: + p0.h = hi(MDMA_D0_IRQ_STATUS); + p0.l = lo(MDMA_D0_IRQ_STATUS); + R0 = W[P0](Z); + CC = BITTST(R0, 0); + if ! CC jump WAIT_DMA_DONE + + R0 = 0x1; + W[P1+OFFSET_(MDMA_D0_IRQ_STATUS)] = R0; /* Write 1 to clear DMA interrupt */ + + /* Initialize BSS Section with 0 s */ + p1.l = __bss_start; + p1.h = __bss_start; + p2.l = _end; + p2.h = _end; + r1 = p1; + r2 = p2; + r3 = r2 - r1; + r3 = r3 >> 2; + p3 = r3; + lsetup (_clear_bss, _clear_bss_end ) lc1 = p3; + CC = p2<=p1; + if CC jump _clear_bss_skip; + r0 = 0; +_clear_bss: +_clear_bss_end: + [p1++] = r0; +_clear_bss_skip: + + p0.l = _start1; + p0.h = _start1; + jump (p0); + +reset_start: + p0.h = WDOG_CNT >> 16; + p0.l = WDOG_CNT & 0xffff; + r0 = 0x0010; + w[p0] = r0; + p0.h = WDOG_CTL >> 16; + p0.l = WDOG_CTL & 0xffff; + r0 = 0x0000; + w[p0] = r0; +reset_wait: + jump reset_wait; + +reset_end: nop; + +_exit: + jump.s _exit; +get_pc: + r0 = rets; + rts; diff --git a/cpu/bf561/start1.S b/cpu/bf561/start1.S new file mode 100644 index 0000000..6d4731b --- /dev/null +++ b/cpu/bf561/start1.S @@ -0,0 +1,38 @@ +/* + * U-boot - start1.S Code running out of RAM after relocation + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#define ASSEMBLY +#include <linux/config.h> +#include <config.h> +#include <asm/blackfin.h> + +.global start1; +.global _start1; + +.text +_start1: +start1: + sp += -12; + call _board_init_f; + sp += 12; diff --git a/cpu/bf561/traps.c b/cpu/bf561/traps.c new file mode 100644 index 0000000..7e2dcd1 --- /dev/null +++ b/cpu/bf561/traps.c @@ -0,0 +1,239 @@ +/* + * U-boot - traps.c Routines related to interrupts and exceptions + * + * Copyright (c) 2005-2007 Analog Devices Inc. + * + * This file is based on + * No original Copyright holder listed, + * Probabily original (C) Roman Zippel (assigned DJD, 1999) + * + * Copyright 2003 Metrowerks - for Blackfin + * Copyright 2000-2001 Lineo, Inc. D. Jeff Dionne <jeff@lineo.ca> + * Copyright 1999-2000 D. Jeff Dionne, <jeff@uclinux.org> + * + * (C) Copyright 2000-2004 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, + * MA 02110-1301 USA + */ + +#include <common.h> +#include <linux/types.h> +#include <asm/errno.h> +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/traps.h> +#include <asm/machdep.h> +#include "cpu.h" +#include <asm/arch/anomaly.h> +#include <asm/cplb.h> +#include <asm/io.h> + +void init_IRQ(void) +{ + blackfin_init_IRQ(); + return; +} + +void process_int(unsigned long vec, struct pt_regs *fp) +{ + printf("interrupt\n"); + return; +} + +extern unsigned int icplb_table[page_descriptor_table_size][2]; +extern unsigned int dcplb_table[page_descriptor_table_size][2]; + +unsigned long last_cplb_fault_retx; + +static unsigned int cplb_sizes[4] = + { 1024, 4 * 1024, 1024 * 1024, 4 * 1024 * 1024 }; + +void trap_c(struct pt_regs *regs) +{ + unsigned int addr; + unsigned long trapnr = (regs->seqstat) & SEQSTAT_EXCAUSE; + unsigned int i, j, size, *I0, *I1; + unsigned short data = 0; + + switch (trapnr) { + /* 0x26 - Data CPLB Miss */ + case VEC_CPLB_M: + +#ifdef ANOMALY_05000261 + /* + * Work around an anomaly: if we see a new DCPLB fault, return + * without doing anything. Then, if we get the same fault again, + * handle it. + */ + addr = last_cplb_fault_retx; + last_cplb_fault_retx = regs->retx; + printf("this time, curr = 0x%08x last = 0x%08x\n", addr, + last_cplb_fault_retx); + if (addr != last_cplb_fault_retx) + goto trap_c_return; +#endif + data = 1; + + case VEC_CPLB_I_M: + + if (data) + addr = *pDCPLB_FAULT_ADDR; + else + addr = *pICPLB_FAULT_ADDR; + + for (i = 0; i < page_descriptor_table_size; i++) { + if (data) { + size = cplb_sizes[dcplb_table[i][1] >> 16]; + j = dcplb_table[i][0]; + } else { + size = cplb_sizes[icplb_table[i][1] >> 16]; + j = icplb_table[i][0]; + } + if ((j <= addr) && ((j + size) > addr)) { + debug("found %i 0x%08x\n", i, j); + break; + } + } + if (i == page_descriptor_table_size) { + printf("something is really wrong\n"); + do_reset(NULL, 0, 0, NULL); + } + + /* Turn the cache off */ + if (data) { + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL &= + ~(ACACHE_BCACHE | ENDCPLB | PORT_PREF0); + sync(); + } else { + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL &= ~(IMC | ENICPLB); + sync(); + } + + if (data) { + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + } else { + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + } + + j = 0; + while (*I1 & CPLB_LOCK) { + debug("skipping %i %08p - %08x\n", j, I1, *I1); + *I0++; + *I1++; + j++; + } + + debug("remove %i 0x%08x 0x%08x\n", j, *I0, *I1); + + for (; j < 15; j++) { + debug("replace %i 0x%08x 0x%08x\n", j, I0, I0 + 1); + *I0++ = *(I0 + 1); + *I1++ = *(I1 + 1); + } + + if (data) { + *I0 = dcplb_table[i][0]; + *I1 = dcplb_table[i][1]; + I0 = (unsigned int *)DCPLB_ADDR0; + I1 = (unsigned int *)DCPLB_DATA0; + } else { + *I0 = icplb_table[i][0]; + *I1 = icplb_table[i][1]; + I0 = (unsigned int *)ICPLB_ADDR0; + I1 = (unsigned int *)ICPLB_DATA0; + } + + for (j = 0; j < 16; j++) { + debug("%i 0x%08x 0x%08x\n", j, *I0++, *I1++); + } + + /* Turn the cache back on */ + if (data) { + j = *(unsigned int *)DMEM_CONTROL; + sync(); + asm(" .align 8; "); + *(unsigned int *)DMEM_CONTROL = + ACACHE_BCACHE | ENDCPLB | PORT_PREF0 | j; + sync(); + } else { + sync(); + asm(" .align 8; "); + *(unsigned int *)IMEM_CONTROL = IMC | ENICPLB; + sync(); + } + + break; + default: + /* All traps come here */ + printf("code=[0x%x], ", (unsigned int)(regs->seqstat & 0x3f)); + printf("stack frame=0x%x, ", (unsigned int)regs); + printf("bad PC=0x%04x\n", (unsigned int)regs->pc); + dump(regs); + printf("\n\n"); + + printf("Unhandled IRQ or exceptions!\n"); + printf("Please reset the board \n"); + do_reset(NULL, 0, 0, NULL); + } + +trap_c_return: + return; + +} + +void dump(struct pt_regs *fp) +{ + debug("RETE: %08lx RETN: %08lx RETX: %08lx RETS: %08lx\n", fp->rete, + fp->retn, fp->retx, fp->rets); + debug("IPEND: %04lx SYSCFG: %04lx\n", fp->ipend, fp->syscfg); + debug("SEQSTAT: %08lx SP: %08lx\n", (long)fp->seqstat, (long)fp); + debug("R0: %08lx R1: %08lx R2: %08lx R3: %08lx\n", fp->r0, + fp->r1, fp->r2, fp->r3); + debug("R4: %08lx R5: %08lx R6: %08lx R7: %08lx\n", fp->r4, + fp->r5, fp->r6, fp->r7); + debug("P0: %08lx P1: %08lx P2: %08lx P3: %08lx\n", fp->p0, + fp->p1, fp->p2, fp->p3); + debug("P4: %08lx P5: %08lx FP: %08lx\n", fp->p4, fp->p5, fp->fp); + debug("A0.w: %08lx A0.x: %08lx A1.w: %08lx A1.x: %08lx\n", + fp->a0w, fp->a0x, fp->a1w, fp->a1x); + + debug("LB0: %08lx LT0: %08lx LC0: %08lx\n", fp->lb0, fp->lt0, + fp->lc0); + debug("LB1: %08lx LT1: %08lx LC1: %08lx\n", fp->lb1, fp->lt1, + fp->lc1); + debug("B0: %08lx L0: %08lx M0: %08lx I0: %08lx\n", fp->b0, fp->l0, + fp->m0, fp->i0); + debug("B1: %08lx L1: %08lx M1: %08lx I1: %08lx\n", fp->b1, fp->l1, + fp->m1, fp->i1); + debug("B2: %08lx L2: %08lx M2: %08lx I2: %08lx\n", fp->b2, fp->l2, + fp->m2, fp->i2); + debug("B3: %08lx L3: %08lx M3: %08lx I3: %08lx\n", fp->b3, fp->l3, + fp->m3, fp->i3); + + debug("DCPLB_FAULT_ADDR=%p\n", *pDCPLB_FAULT_ADDR); + debug("ICPLB_FAULT_ADDR=%p\n", *pICPLB_FAULT_ADDR); + +} diff --git a/cpu/bf561/video.c b/cpu/bf561/video.c new file mode 100644 index 0000000..3ff0151 --- /dev/null +++ b/cpu/bf561/video.c @@ -0,0 +1,194 @@ +/* + * (C) Copyright 2000 + * Paolo Scaffardi, AIRVENT SAM s.p.a - RIMINI(ITALY), arsenio@tin.it + * (C) Copyright 2002 + * Wolfgang Denk, wd@denx.de + * (C) Copyright 2006 + * Aubrey Li, aubrey.li@analog.com + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <stdarg.h> +#include <common.h> +#include <config.h> +#include <asm/blackfin.h> +#include <i2c.h> +#include <linux/types.h> +#include <devices.h> + +#ifdef CONFIG_VIDEO +#define NTSC_FRAME_ADDR 0x06000000 +#include "video.h" + +/* NTSC OUTPUT SIZE 720 * 240 */ +#define VERTICAL 2 +#define HORIZONTAL 4 + +int is_vblank_line(const int line) +{ + /* + * This array contains a single bit for each line in + * an NTSC frame. + */ + if ((line <= 18) || (line >= 264 && line <= 281) || (line == 528)) + return true; + + return false; +} + +int NTSC_framebuffer_init(char *base_address) +{ + const int NTSC_frames = 1; + const int NTSC_lines = 525; + char *dest = base_address; + int frame_num, line_num; + + for (frame_num = 0; frame_num < NTSC_frames; ++frame_num) { + for (line_num = 1; line_num <= NTSC_lines; ++line_num) { + unsigned int code; + int offset = 0; + int i; + + if (is_vblank_line(line_num)) + offset++; + + if (line_num > 266 || line_num < 3) + offset += 2; + + /* Output EAV code */ + code = SystemCodeMap[offset].EAV; + write_dest_byte((char)(code >> 24) & 0xff); + write_dest_byte((char)(code >> 16) & 0xff); + write_dest_byte((char)(code >> 8) & 0xff); + write_dest_byte((char)(code) & 0xff); + + /* Output horizontal blanking */ + for (i = 0; i < 67 * 2; ++i) { + write_dest_byte(0x80); + write_dest_byte(0x10); + } + + /* Output SAV */ + code = SystemCodeMap[offset].SAV; + write_dest_byte((char)(code >> 24) & 0xff); + write_dest_byte((char)(code >> 16) & 0xff); + write_dest_byte((char)(code >> 8) & 0xff); + write_dest_byte((char)(code) & 0xff); + + /* Output empty horizontal data */ + for (i = 0; i < 360 * 2; ++i) { + write_dest_byte(0x80); + write_dest_byte(0x10); + } + } + } + + return dest - base_address; +} + +void fill_frame(char *Frame, int Value) +{ + int *OddPtr32; + int OddLine; + int *EvenPtr32; + int EvenLine; + int i; + int *data; + int m, n; + + /* fill odd and even frames */ + for (OddLine = 22, EvenLine = 285; OddLine < 263; OddLine++, EvenLine++) { + OddPtr32 = (int *)((Frame + (OddLine * 1716)) + 276); + EvenPtr32 = (int *)((Frame + (EvenLine * 1716)) + 276); + for (i = 0; i < 360; i++, OddPtr32++, EvenPtr32++) { + *OddPtr32 = Value; + *EvenPtr32 = Value; + } + } + + for (m = 0; m < VERTICAL; m++) { + data = (int *)u_boot_logo.data; + for (OddLine = (22 + m), EvenLine = (285 + m); + OddLine < (u_boot_logo.height * VERTICAL) + (22 + m); + OddLine += VERTICAL, EvenLine += VERTICAL) { + OddPtr32 = (int *)((Frame + ((OddLine) * 1716)) + 276); + EvenPtr32 = + (int *)((Frame + ((EvenLine) * 1716)) + 276); + for (i = 0; i < u_boot_logo.width / 2; i++) { + /* enlarge one pixel to m x n */ + for (n = 0; n < HORIZONTAL; n++) { + *OddPtr32++ = *data; + *EvenPtr32++ = *data; + } + data++; + } + } + } +} + +void video_putc(const char c) +{ +} + +void video_puts(const char *s) +{ +} + +static int video_init(void) +{ + char *NTSCFrame; + NTSCFrame = (char *)NTSC_FRAME_ADDR; + NTSC_framebuffer_init(NTSCFrame); + fill_frame(NTSCFrame, BLUE); + + *pPPI_CONTROL = 0x0082; + *pPPI_FRAME = 0x020D; + + *pDMA0_START_ADDR = NTSCFrame; + *pDMA0_X_COUNT = 0x035A; + *pDMA0_X_MODIFY = 0x0002; + *pDMA0_Y_COUNT = 0x020D; + *pDMA0_Y_MODIFY = 0x0002; + *pDMA0_CONFIG = 0x1015; + *pPPI_CONTROL = 0x0083; + return 0; +} + +int drv_video_init(void) +{ + int error, devices = 1; + + device_t videodev; + + video_init(); /* Video initialization */ + + memset(&videodev, 0, sizeof(videodev)); + + strcpy(videodev.name, "video"); + videodev.ext = DEV_EXT_VIDEO; /* Video extensions */ + videodev.flags = DEV_FLAGS_OUTPUT; /* Output only */ + videodev.putc = video_putc; /* 'putc' function */ + videodev.puts = video_puts; /* 'puts' function */ + + error = device_register(&videodev); + + return (error == 0) ? devices : error; +} +#endif diff --git a/cpu/bf561/video.h b/cpu/bf561/video.h new file mode 100644 index 0000000..d237f6a --- /dev/null +++ b/cpu/bf561/video.h @@ -0,0 +1,25 @@ +#include <video_logo.h> +#define write_dest_byte(val) {*dest++=val;} +#define BLACK (0x01800180) /* black pixel pattern */ +#define BLUE (0x296E29F0) /* blue pixel pattern */ +#define RED (0x51F0515A) /* red pixel pattern */ +#define MAGENTA (0x6ADE6ACA) /* magenta pixel pattern */ +#define GREEN (0x91229136) /* green pixel pattern */ +#define CYAN (0xAA10AAA6) /* cyan pixel pattern */ +#define YELLOW (0xD292D210) /* yellow pixel pattern */ +#define WHITE (0xFE80FE80) /* white pixel pattern */ + +#define true 1 +#define false 0 + +typedef struct { + unsigned int SAV; + unsigned int EAV; +} SystemCodeType; + +const SystemCodeType SystemCodeMap[4] = { + {0xFF000080, 0xFF00009D}, + {0xFF0000AB, 0xFF0000B6}, + {0xFF0000C7, 0xFF0000DA}, + {0xFF0000EC, 0xFF0000F1} +}; diff --git a/cpu/ixp/npe/Makefile b/cpu/ixp/npe/Makefile index 4de34fd..7f020b5 100644 --- a/cpu/ixp/npe/Makefile +++ b/cpu/ixp/npe/Makefile @@ -87,7 +87,7 @@ START := $(addprefix $(obj),$(START)) all: $(LIB) -$(LIB): $(obj).depend $(OBJS) +$(LIB): $(OBJS) $(AR) $(ARFLAGS) $@ $(OBJS) ######################################################################### diff --git a/cpu/microblaze/start.S b/cpu/microblaze/start.S index 4538158..3c027ff 100644 --- a/cpu/microblaze/start.S +++ b/cpu/microblaze/start.S @@ -54,7 +54,7 @@ _start: lhu r7, r1, r0 shi r7, r0, 0x2 shi r6, r0, 0x6 -/* +/* * Copy U-Boot code to TEXT_BASE * solve problem with sbrk_base */ diff --git a/cpu/mpc5xxx/cpu.c b/cpu/mpc5xxx/cpu.c index 813aa79..1eac2bb 100644 --- a/cpu/mpc5xxx/cpu.c +++ b/cpu/mpc5xxx/cpu.c @@ -53,12 +53,16 @@ int checkcpu (void) #else svr = get_svr(); pvr = get_pvr(); - switch (SVR_VER (svr)) { - case SVR_MPC5200: - printf ("MPC5200"); + + switch (pvr) { + case PVR_5200: + printf("MPC5200"); + break; + case PVR_5200B: + printf("MPC5200B"); break; default: - printf ("MPC52?? (SVR %08x)", svr); + printf("Unknown MPC5xxx"); break; } @@ -127,5 +131,9 @@ ft_cpu_setup(void *blob, bd_t *bd) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@3000/mac-address", &len); if (p != NULL) memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@3000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); } #endif diff --git a/cpu/mpc5xxx/fec.c b/cpu/mpc5xxx/fec.c index e639234..e59bd85 100644 --- a/cpu/mpc5xxx/fec.c +++ b/cpu/mpc5xxx/fec.c @@ -467,6 +467,10 @@ static int mpc5xxx_fec_init_phy(struct eth_device *dev, bd_t * bis) miiphy_write(dev->name, phyAddr, 0x0, 0x8000); udelay(1000); +#if defined(CONFIG_UC101) + /* Set the LED configuration Register for the UC101 Board */ + miiphy_write(dev->name, phyAddr, 0x14, 0x4122); +#endif if (fec->xcv_type == MII10) { /* * Force 10Base-T, FDX operation @@ -878,12 +882,13 @@ int mpc5xxx_fec_initialize(bd_t * bis) fec->eth = (ethernet_regs *)MPC5XXX_FEC; fec->tbdBase = (FEC_TBD *)FEC_BD_BASE; fec->rbdBase = (FEC_RBD *)(FEC_BD_BASE + FEC_TBD_NUM * sizeof(FEC_TBD)); -#if defined(CONFIG_CANMB) || defined(CONFIG_HMI1001) || \ - defined(CONFIG_ICECUBE) || defined(CONFIG_INKA4X0) || \ - defined(CONFIG_MCC200) || defined(CONFIG_MOTIONPRO) || \ - defined(CONFIG_O2DNT) || defined(CONFIG_PM520) || \ - defined(CONFIG_TOP5200) || defined(CONFIG_TQM5200) || \ - defined(CONFIG_UC101) || defined(CONFIG_V38B) +#if defined(CONFIG_CANMB) || defined(CONFIG_HMI1001) || \ + defined(CONFIG_ICECUBE) || defined(CONFIG_INKA4X0) || \ + defined(CONFIG_JUPITER) || defined(CONFIG_MCC200) || \ + defined(CONFIG_MOTIONPRO)|| defined(CONFIG_O2DNT) || \ + defined(CONFIG_PM520) || defined(CONFIG_TOP5200) || \ + defined(CONFIG_TQM5200) || defined(CONFIG_UC101) || \ + defined(CONFIG_V38B) # ifndef CONFIG_FEC_10MBIT fec->xcv_type = MII100; # else diff --git a/cpu/mpc8260/cpu_init.c b/cpu/mpc8260/cpu_init.c index 7dcc949..380d7af 100644 --- a/cpu/mpc8260/cpu_init.c +++ b/cpu/mpc8260/cpu_init.c @@ -129,9 +129,9 @@ void cpu_init_f (volatile immap_t * immr) /* BCR - Bus Configuration Register (4-25) */ #if defined(CFG_BCR_60x) && (CFG_BCR_SINGLE) if (immr->im_siu_conf.sc_bcr & BCR_EBM) { - immr->im_siu_conf.sc_bcr = CFG_BCR_60x; + immr->im_siu_conf.sc_bcr = SET_VAL_MASK(immr->im_siu_conf.sc_bcr, CFG_BCR_60x, 0x80000010); } else { - immr->im_siu_conf.sc_bcr = CFG_BCR_SINGLE; + immr->im_siu_conf.sc_bcr = SET_VAL_MASK(immr->im_siu_conf.sc_bcr, CFG_BCR_SINGLE, 0x80000010); } #else immr->im_siu_conf.sc_bcr = CFG_BCR; @@ -141,9 +141,9 @@ void cpu_init_f (volatile immap_t * immr) #if defined(CFG_SIUMCR_LOW) && (CFG_SIUMCR_HIGH) cpu_clk = board_get_cpu_clk_f (); if (cpu_clk >= 100000000) { - immr->im_siu_conf.sc_siumcr = CFG_SIUMCR_HIGH; + immr->im_siu_conf.sc_siumcr = SET_VAL_MASK(immr->im_siu_conf.sc_siumcr, CFG_SIUMCR_HIGH, 0x9f3cc000); } else { - immr->im_siu_conf.sc_siumcr = CFG_SIUMCR_LOW; + immr->im_siu_conf.sc_siumcr = SET_VAL_MASK(immr->im_siu_conf.sc_siumcr, CFG_SIUMCR_LOW, 0x9f3cc000); } #else immr->im_siu_conf.sc_siumcr = CFG_SIUMCR; diff --git a/cpu/mpc8260/pci.c b/cpu/mpc8260/pci.c index 1edd6fb..75c6ab2 100644 --- a/cpu/mpc8260/pci.c +++ b/cpu/mpc8260/pci.c @@ -275,22 +275,7 @@ void pci_mpc8250_init (struct pci_controller *hose) | SIUMCR_BCTLC00 | SIUMCR_MMR11; #elif defined(CONFIG_TQM8272) -#if 0 - immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr & - ~SIUMCR_LBPC11 & - ~SIUMCR_CS10PC11 & - ~SIUMCR_LBPC11) | - SIUMCR_LBPC01 | - SIUMCR_CS10PC01 | - SIUMCR_APPC10; -#else -#if 0 - immap->im_siu_conf.sc_siumcr = (immap->im_siu_conf.sc_siumcr | - SIUMCR_APPC10); -#else - immap->im_siu_conf.sc_siumcr = 0x88000000; -#endif -#endif +/* nothing to do for this Board here */ #else /* * Setting required to enable IRQ1-IRQ7 (SIUMCR [DPPC]), @@ -304,7 +289,6 @@ void pci_mpc8250_init (struct pci_controller *hose) SIUMCR_CS10PC01 | SIUMCR_APPC10; #endif -printf("%s siumcr: %x\n", __FUNCTION__, immap->im_siu_conf.sc_siumcr); /* Make PCI lowest priority */ /* Each 4 bits is a device bus request and the MS 4bits diff --git a/cpu/mpc83xx/cpu.c b/cpu/mpc83xx/cpu.c index 1b51078..e934ba6 100644 --- a/cpu/mpc83xx/cpu.c +++ b/cpu/mpc83xx/cpu.c @@ -30,8 +30,14 @@ #include <watchdog.h> #include <command.h> #include <mpc83xx.h> -#include <ft_build.h> #include <asm/processor.h> +#if defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#endif +#if defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#include <libfdt_env.h> +#endif DECLARE_GLOBAL_DATA_PTR; @@ -56,49 +62,78 @@ int checkcpu(void) switch(spridr) { case SPR_8349E_REV10: case SPR_8349E_REV11: + case SPR_8349E_REV31: puts("MPC8349E, "); break; case SPR_8349_REV10: case SPR_8349_REV11: + case SPR_8349_REV31: puts("MPC8349, "); break; case SPR_8347E_REV10_TBGA: case SPR_8347E_REV11_TBGA: + case SPR_8347E_REV31_TBGA: case SPR_8347E_REV10_PBGA: case SPR_8347E_REV11_PBGA: + case SPR_8347E_REV31_PBGA: puts("MPC8347E, "); break; case SPR_8347_REV10_TBGA: case SPR_8347_REV11_TBGA: + case SPR_8347_REV31_TBGA: case SPR_8347_REV10_PBGA: case SPR_8347_REV11_PBGA: + case SPR_8347_REV31_PBGA: puts("MPC8347, "); break; case SPR_8343E_REV10: case SPR_8343E_REV11: + case SPR_8343E_REV31: puts("MPC8343E, "); break; case SPR_8343_REV10: case SPR_8343_REV11: + case SPR_8343_REV31: puts("MPC8343, "); break; case SPR_8360E_REV10: case SPR_8360E_REV11: case SPR_8360E_REV12: + case SPR_8360E_REV20: puts("MPC8360E, "); break; case SPR_8360_REV10: case SPR_8360_REV11: case SPR_8360_REV12: + case SPR_8360_REV20: puts("MPC8360, "); break; + case SPR_8323E_REV10: + case SPR_8323E_REV11: + puts("MPC8323E, "); + break; + case SPR_8323_REV10: + case SPR_8323_REV11: + puts("MPC8323, "); + break; + case SPR_8321E_REV10: + case SPR_8321E_REV11: + puts("MPC8321E, "); + break; + case SPR_8321_REV10: + case SPR_8321_REV11: + puts("MPC8321, "); + break; default: - puts("Rev: Unknown\n"); - return -1; /* Not sure what this is */ + puts("Rev: Unknown revision number.\nWarning: Unsupported cpu revision!\n"); + return 0; } -#if defined(CONFIG_MPC8349) - printf("Rev: %02x at %s MHz\n", (spridr & 0x0000FFFF)>>4 |(spridr & 0x0000000F), strmhz(buf, clock)); +#if defined(CONFIG_MPC834X) + /* Multiple revisons of 834x processors may have the same SPRIDR value. + * So use PVR to identify the revision number. + */ + printf("Rev: %02x at %s MHz\n", PVR_MAJ(pvr)<<4 | PVR_MIN(pvr), strmhz(buf, clock)); #else printf("Rev: %02x at %s MHz\n", spridr & 0x0000FFFF, strmhz(buf, clock)); #endif @@ -250,7 +285,6 @@ unsigned long get_tbclk(void) #if defined(CONFIG_WATCHDOG) void watchdog_reset (void) { -#ifdef CONFIG_MPC834X int re_enable = disable_interrupts(); /* Reset the 83xx watchdog */ @@ -260,9 +294,182 @@ void watchdog_reset (void) if (re_enable) enable_interrupts (); -#else - hang(); +} #endif + +#if defined(CONFIG_OF_LIBFDT) + +/* + * "Setter" functions used to add/modify FDT entries. + */ +static int fdt_set_eth0(void *fdt, int nodeoffset, const char *name, bd_t *bd) +{ + /* + * Fix it up if it exists, don't create it if it doesn't exist. + */ + if (fdt_get_property(fdt, nodeoffset, name, 0)) { + return fdt_setprop(fdt, nodeoffset, name, bd->bi_enetaddr, 6); + } + return -FDT_ERR_NOTFOUND; +} +#ifdef CONFIG_HAS_ETH1 +/* second onboard ethernet port */ +static int fdt_set_eth1(void *fdt, int nodeoffset, const char *name, bd_t *bd) +{ + /* + * Fix it up if it exists, don't create it if it doesn't exist. + */ + if (fdt_get_property(fdt, nodeoffset, name, 0)) { + return fdt_setprop(fdt, nodeoffset, name, bd->bi_enet1addr, 6); + } + return -FDT_ERR_NOTFOUND; +} +#endif +#ifdef CONFIG_HAS_ETH2 +/* third onboard ethernet port */ +static int fdt_set_eth2(void *fdt, int nodeoffset, const char *name, bd_t *bd) +{ + /* + * Fix it up if it exists, don't create it if it doesn't exist. + */ + if (fdt_get_property(fdt, nodeoffset, name, 0)) { + return fdt_setprop(fdt, nodeoffset, name, bd->bi_enet2addr, 6); + } + return -FDT_ERR_NOTFOUND; +} +#endif +#ifdef CONFIG_HAS_ETH3 +/* fourth onboard ethernet port */ +static int fdt_set_eth3(void *fdt, int nodeoffset, const char *name, bd_t *bd) +{ + /* + * Fix it up if it exists, don't create it if it doesn't exist. + */ + if (fdt_get_property(fdt, nodeoffset, name, 0)) { + return fdt_setprop(fdt, nodeoffset, name, bd->bi_enet3addr, 6); + } + return -FDT_ERR_NOTFOUND; +} +#endif + +static int fdt_set_busfreq(void *fdt, int nodeoffset, const char *name, bd_t *bd) +{ + u32 tmp; + /* + * Create or update the property. + */ + tmp = cpu_to_be32(bd->bi_busfreq); + return fdt_setprop(fdt, nodeoffset, name, &tmp, sizeof(tmp)); +} + +/* + * Fixups to the fdt. If "create" is TRUE, the node is created + * unconditionally. If "create" is FALSE, the node is updated + * only if it already exists. + */ +static const struct { + char *node; + char *prop; + int (*set_fn)(void *fdt, int nodeoffset, const char *name, bd_t *bd); +} fixup_props[] = { + { "/cpus/" OF_CPU, + "bus-frequency", + fdt_set_busfreq + }, + { "/cpus/" OF_SOC, + "bus-frequency", + fdt_set_busfreq + }, + { "/" OF_SOC "/serial@4500/", + "clock-frequency", + fdt_set_busfreq + }, + { "/" OF_SOC "/serial@4600/", + "clock-frequency", + fdt_set_busfreq + }, +#ifdef CONFIG_MPC83XX_TSEC1 + { "/" OF_SOC "/ethernet@24000, + "mac-address", + fdt_set_eth0 + }, + { "/" OF_SOC "/ethernet@24000, + "local-mac-address", + fdt_set_eth0 + }, +#endif +#ifdef CONFIG_MPC83XX_TSEC2 + { "/" OF_SOC "/ethernet@25000, + "mac-address", + fdt_set_eth1 + }, + { "/" OF_SOC "/ethernet@25000, + "local-mac-address", + fdt_set_eth1 + }, +#endif +#ifdef CONFIG_UEC_ETH1 +#if CFG_UEC1_UCC_NUM == 0 /* UCC1 */ + { "/" OF_QE "/ucc@2000/mac-address", + "mac-address", + fdt_set_eth0 + }, + { "/" OF_QE "/ucc@2000/mac-address", + "local-mac-address", + fdt_set_eth0 + }, +#elif CFG_UEC1_UCC_NUM == 2 /* UCC3 */ + { "/" OF_QE "/ucc@2200/mac-address", + "mac-address", + fdt_set_eth0 + }, + { "/" OF_QE "/ucc@2200/mac-address", + "local-mac-address", + fdt_set_eth0 + }, +#endif +#endif +#ifdef CONFIG_UEC_ETH2 +#if CFG_UEC2_UCC_NUM == 1 /* UCC2 */ + { "/" OF_QE "/ucc@3000/mac-address", + "mac-address", + fdt_set_eth1 + }, + { "/" OF_QE "/ucc@3000/mac-address", + "local-mac-address", + fdt_set_eth1 + }, +#elif CFG_UEC1_UCC_NUM == 3 /* UCC4 */ + { "/" OF_QE "/ucc@3200/mac-address", + "mac-address", + fdt_set_eth1 + }, + { "/" OF_QE "/ucc@3200/mac-address", + "local-mac-address", + fdt_set_eth1 + }, +#endif +#endif +}; + +void +ft_cpu_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int err; + int j; + + for (j = 0; j < (sizeof(fixup_props) / sizeof(fixup_props[0])); j++) { + nodeoffset = fdt_path_offset(fdt, fixup_props[j].node); + if (nodeoffset >= 0) { + err = (*fixup_props[j].set_fn)(blob, nodeoffset, fixup_props[j].prop, bd); + if (err < 0) + printf("set_fn/libfdt: %s %s returned %s\n", + fixup_props[j].node, + fixup_props[j].prop, + fdt_strerror(err)); + } + } } #endif @@ -292,13 +499,63 @@ ft_cpu_setup(void *blob, bd_t *bd) *p = cpu_to_be32(clock); #ifdef CONFIG_MPC83XX_TSEC1 + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len); + if (p != NULL) memcpy(p, bd->bi_enetaddr, 6); #endif #ifdef CONFIG_MPC83XX_TSEC2 + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#endif + +#ifdef CONFIG_UEC_ETH1 +#if CFG_UEC1_UCC_NUM == 0 /* UCC1 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@2000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@2000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#elif CFG_UEC1_UCC_NUM == 2 /* UCC3 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@2200/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@2200/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); +#endif +#endif + +#ifdef CONFIG_UEC_ETH2 +#if CFG_UEC2_UCC_NUM == 1 /* UCC2 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@3000/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@3000/local-mac-address", &len); + if (p != NULL) memcpy(p, bd->bi_enet1addr, 6); +#elif CFG_UEC2_UCC_NUM == 3 /* UCC4 */ + p = ft_get_prop(blob, "/" OF_QE "/ucc@3200/mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_QE "/ucc@3200/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); +#endif #endif } #endif diff --git a/cpu/mpc83xx/cpu_init.c b/cpu/mpc83xx/cpu_init.c index e5725fb..3ac9161 100644 --- a/cpu/mpc83xx/cpu_init.c +++ b/cpu/mpc83xx/cpu_init.c @@ -69,31 +69,53 @@ void cpu_init_f (volatile immap_t * im) #ifdef CFG_ACR_PIPE_DEP /* Arbiter pipeline depth */ - im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | (3 << ACR_PIPE_DEP_SHIFT); + im->arbiter.acr = (im->arbiter.acr & ~ACR_PIPE_DEP) | + (CFG_ACR_PIPE_DEP << ACR_PIPE_DEP_SHIFT); #endif #ifdef CFG_SPCR_TSEC1EP /* TSEC1 Emergency priority */ - im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (3 << SPCR_TSEC1EP_SHIFT); + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC1EP) | (CFG_SPCR_TSEC1EP << SPCR_TSEC1EP_SHIFT); #endif #ifdef CFG_SPCR_TSEC2EP /* TSEC2 Emergency priority */ - im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (3 << SPCR_TSEC2EP_SHIFT); + im->sysconf.spcr = (im->sysconf.spcr & ~SPCR_TSEC2EP) | (CFG_SPCR_TSEC2EP << SPCR_TSEC2EP_SHIFT); #endif +#ifdef CONFIG_MPC834X #ifdef CFG_SCCR_TSEC1CM /* TSEC1 clock mode */ - im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (1 << SCCR_TSEC1CM_SHIFT); + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC1CM) | (CFG_SCCR_TSEC1CM << SCCR_TSEC1CM_SHIFT); #endif #ifdef CFG_SCCR_TSEC2CM /* TSEC2 & I2C1 clock mode */ - im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (1 << SCCR_TSEC2CM_SHIFT); + im->clk.sccr = (im->clk.sccr & ~SCCR_TSEC2CM) | (CFG_SCCR_TSEC2CM << SCCR_TSEC2CM_SHIFT); +#endif +#ifdef CFG_SCCR_USBMPHCM + /* USB MPH clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_USBMPHCM) | (CFG_SCCR_USBMPHCM << SCCR_USBMPHCM_SHIFT); +#endif +#endif /* CONFIG_MPC834X */ + +#ifdef CFG_SCCR_PCICM + /* PCI & DMA clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_PCICM) | (CFG_SCCR_PCICM << SCCR_PCICM_SHIFT); +#endif + +#ifdef CFG_SCCR_USBDRCM + /* USB DR clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_USBDRCM) | (CFG_SCCR_USBDRCM << SCCR_USBDRCM_SHIFT); +#endif + +#ifdef CFG_SCCR_ENCCM + /* Encryption clock mode */ + im->clk.sccr = (im->clk.sccr & ~SCCR_ENCCM) | (CFG_SCCR_ENCCM << SCCR_PCICM_SHIFT); #endif #ifdef CFG_ACR_RPTCNT /* Arbiter repeat count */ - im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (3 << ACR_RPTCNT_SHIFT)); + im->arbiter.acr = ((im->arbiter.acr & ~(ACR_RPTCNT)) | (CFG_ACR_RPTCNT << ACR_RPTCNT_SHIFT)); #endif /* RSR - Reset Status Register - clear all status (4.6.1.3) */ @@ -119,6 +141,11 @@ void cpu_init_f (volatile immap_t * im) #ifdef CFG_SICRL im->sysconf.sicrl = CFG_SICRL; #endif + /* DDR control driver register */ +#ifdef CFG_DDRCDR + im->sysconf.ddrcdr = CFG_DDRCDR; +#endif + #ifdef CONFIG_QE /* Config QE ioports */ config_qe_ioports(); @@ -202,12 +229,12 @@ void cpu_init_f (volatile immap_t * im) im->sysconf.lblaw[7].ar = CFG_LBLAWAR7_PRELIM; #endif #ifdef CFG_GPIO1_PRELIM - im->pgio[0].dir = CFG_GPIO1_DIR; - im->pgio[0].dat = CFG_GPIO1_DAT; + im->gpio[0].dir = CFG_GPIO1_DIR; + im->gpio[0].dat = CFG_GPIO1_DAT; #endif #ifdef CFG_GPIO2_PRELIM - im->pgio[1].dir = CFG_GPIO2_DIR; - im->pgio[1].dat = CFG_GPIO2_DAT; + im->gpio[1].dir = CFG_GPIO2_DIR; + im->gpio[1].dat = CFG_GPIO2_DAT; #endif } diff --git a/cpu/mpc83xx/qe_io.c b/cpu/mpc83xx/qe_io.c index ebe3487..8b3937a 100644 --- a/cpu/mpc83xx/qe_io.c +++ b/cpu/mpc83xx/qe_io.c @@ -35,7 +35,7 @@ void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign) u32 pin_1bit_mask; u32 tmp_val; volatile immap_t *im = (volatile immap_t *)CFG_IMMR; - volatile gpio83xx_t *par_io =(volatile gpio83xx_t *)&im->gpio; + volatile qepio83xx_t *par_io = (volatile qepio83xx_t *)&im->qepio; /* Caculate pin location and 2bit mask and dir */ pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2)); diff --git a/cpu/mpc83xx/spd_sdram.c b/cpu/mpc83xx/spd_sdram.c index 0d93f2e..d9b8753 100644 --- a/cpu/mpc83xx/spd_sdram.c +++ b/cpu/mpc83xx/spd_sdram.c @@ -106,16 +106,29 @@ long int spd_sdram() volatile ddr83xx_t *ddr = &immap->ddr; volatile law83xx_t *ecm = &immap->sysconf.ddrlaw[0]; spd_eeprom_t spd; + unsigned int n_ranks; + unsigned int odt_rd_cfg, odt_wr_cfg; + unsigned char twr_clk, twtr_clk; + unsigned char sdram_type; unsigned int memsize; unsigned int law_size; unsigned char caslat, caslat_ctrl; + unsigned int trfc, trfc_clk, trfc_low, trfc_high; + unsigned int trcd_clk, trtp_clk; + unsigned char cke_min_clk; + unsigned char add_lat, wr_lat; + unsigned char wr_data_delay; + unsigned char four_act; + unsigned char cpo; unsigned char burstlen; + unsigned char odt_cfg, mode_odt_enable; unsigned int max_bus_clk; unsigned int max_data_rate, effective_data_rate; unsigned int ddrc_clk; unsigned int refresh_clk; - unsigned sdram_cfg; + unsigned int sdram_cfg; unsigned int ddrc_ecc_enable; + unsigned int pvr = get_pvr(); /* Read SPD parameters with I2C */ CFG_READ_SPD(SPD_EEPROM_ADDRESS, 0, 1, (uchar *) & spd, sizeof (spd)); @@ -123,19 +136,25 @@ long int spd_sdram() spd_debug(&spd); #endif /* Check the memory type */ - if (spd.mem_type != SPD_MEMTYPE_DDR) { + if (spd.mem_type != SPD_MEMTYPE_DDR && spd.mem_type != SPD_MEMTYPE_DDR2) { printf("DDR: Module mem type is %02X\n", spd.mem_type); return 0; } /* Check the number of physical bank */ - if (spd.nrows > 2) { - printf("DDR: The number of physical bank is %02X\n", spd.nrows); + if (spd.mem_type == SPD_MEMTYPE_DDR) { + n_ranks = spd.nrows; + } else { + n_ranks = (spd.nrows & 0x7) + 1; + } + + if (n_ranks > 2) { + printf("DDR: The number of physical bank is %02X\n", n_ranks); return 0; } /* Check if the number of row of the module is in the range of DDRC */ - if (spd.nrow_addr < 12 || spd.nrow_addr > 14) { + if (spd.nrow_addr < 12 || spd.nrow_addr > 15) { printf("DDR: Row number is out of range of DDRC, row=%02X\n", spd.nrow_addr); return 0; @@ -147,20 +166,43 @@ long int spd_sdram() spd.ncol_addr); return 0; } + +#ifdef CFG_DDRCDR_VALUE + /* + * Adjust DDR II IO voltage biasing. It just makes it work. + */ + if(spd.mem_type == SPD_MEMTYPE_DDR2) { + immap->sysconf.ddrcdr = CFG_DDRCDR_VALUE; + } +#endif + + /* + * ODT configuration recommendation from DDR Controller Chapter. + */ + odt_rd_cfg = 0; /* Never assert ODT */ + odt_wr_cfg = 0; /* Never assert ODT */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + odt_wr_cfg = 1; /* Assert ODT on writes to CSn */ + } + /* Setup DDR chip select register */ #ifdef CFG_83XX_DDR_USES_CS0 ddr->csbnds[0].csbnds = (banksize(spd.row_dens) >> 24) - 1; ddr->cs_config[0] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr - 12) << 8 | (spd.ncol_addr - 8) ); debug("\n"); debug("cs0_bnds = 0x%08x\n",ddr->csbnds[0].csbnds); debug("cs0_config = 0x%08x\n",ddr->cs_config[0]); - if (spd.nrows == 2) { + if (n_ranks == 2) { ddr->csbnds[1].csbnds = ( (banksize(spd.row_dens) >> 8) | ((banksize(spd.row_dens) >> 23) - 1) ); ddr->cs_config[1] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr-12) << 8 | (spd.ncol_addr-8) ); debug("cs1_bnds = 0x%08x\n",ddr->csbnds[1].csbnds); @@ -170,16 +212,20 @@ long int spd_sdram() #else ddr->csbnds[2].csbnds = (banksize(spd.row_dens) >> 24) - 1; ddr->cs_config[2] = ( 1 << 31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr - 12) << 8 | (spd.ncol_addr - 8) ); debug("\n"); debug("cs2_bnds = 0x%08x\n",ddr->csbnds[2].csbnds); debug("cs2_config = 0x%08x\n",ddr->cs_config[2]); - if (spd.nrows == 2) { + if (n_ranks == 2) { ddr->csbnds[3].csbnds = ( (banksize(spd.row_dens) >> 8) | ((banksize(spd.row_dens) >> 23) - 1) ); ddr->cs_config[3] = ( 1<<31 + | (odt_rd_cfg << 20) + | (odt_wr_cfg << 16) | (spd.nrow_addr-12) << 8 | (spd.ncol_addr-8) ); debug("cs3_bnds = 0x%08x\n",ddr->csbnds[3].csbnds); @@ -187,15 +233,10 @@ long int spd_sdram() } #endif - if (spd.mem_type != 0x07) { - puts("No DDR module found!\n"); - return 0; - } - /* * Figure out memory size in Megabytes. */ - memsize = spd.nrows * banksize(spd.row_dens) / 0x100000; + memsize = n_ranks * banksize(spd.row_dens) / 0x100000; /* * First supported LAW size is 16M, at LAWAR_SIZE_16M == 23. @@ -215,24 +256,32 @@ long int spd_sdram() * in the spd.cas_lat field. Translate it to a DDR * controller field value: * - * CAS Lat DDR I Ctrl - * Clocks SPD Bit Value - * -------+--------+--------- - * 1.0 0 001 - * 1.5 1 010 - * 2.0 2 011 - * 2.5 3 100 - * 3.0 4 101 - * 3.5 5 110 - * 4.0 6 111 + * CAS Lat DDR I DDR II Ctrl + * Clocks SPD Bit SPD Bit Value + * ------- ------- ------- ----- + * 1.0 0 0001 + * 1.5 1 0010 + * 2.0 2 2 0011 + * 2.5 3 0100 + * 3.0 4 3 0101 + * 3.5 5 0110 + * 4.0 6 4 0111 + * 4.5 1000 + * 5.0 5 1001 */ caslat = __ilog2(spd.cas_lat); - - if (caslat > 6 ) { - printf("DDR: Invalid SPD CAS Latency, caslat=%02X\n", - spd.cas_lat); + if ((spd.mem_type == SPD_MEMTYPE_DDR) + && (caslat > 6)) { + printf("DDR I: Invalid SPD CAS Latency: 0x%x.\n", spd.cas_lat); + return 0; + } else if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (caslat < 2 || caslat > 5)) { + printf("DDR II: Invalid SPD CAS Latency: 0x%x.\n", + spd.cas_lat); return 0; } + debug("DDR: caslat SPD bit is %d\n", caslat); + max_bus_clk = 1000 *10 / (((spd.clk_cycle & 0xF0) >> 4) * 10 + (spd.clk_cycle & 0x0f)); max_data_rate = max_bus_clk * 2; @@ -240,10 +289,11 @@ long int spd_sdram() debug("DDR:Module maximum data rate is: %dMhz\n", max_data_rate); ddrc_clk = gd->ddr_clk / 1000000; + effective_data_rate = 0; - if (max_data_rate >= 390) { /* it is DDR 400 */ - if (ddrc_clk <= 410 && ddrc_clk > 350) { - /* DDR controller clk at 350~410 */ + if (max_data_rate >= 390 && max_data_rate < 460) { /* it is DDR 400 */ + if (ddrc_clk <= 460 && ddrc_clk > 350) { + /* DDR controller clk at 350~460 */ effective_data_rate = 400; /* 5ns */ caslat = caslat; } else if (ddrc_clk <= 350 && ddrc_clk > 280) { @@ -258,16 +308,16 @@ long int spd_sdram() effective_data_rate = 266; /* 7.5ns */ if (spd.clk_cycle3 == 0x75) caslat = caslat - 2; - else if (spd.clk_cycle2 == 0x60) + else if (spd.clk_cycle2 == 0x75) caslat = caslat - 1; else caslat = caslat; } else if (ddrc_clk <= 230 && ddrc_clk > 90) { /* DDR controller clk at 90~230 */ effective_data_rate = 200; /* 10ns */ - if (spd.clk_cycle3 == 0x75) + if (spd.clk_cycle3 == 0xa0) caslat = caslat - 2; - else if (spd.clk_cycle2 == 0x60) + else if (spd.clk_cycle2 == 0xa0) caslat = caslat - 1; else caslat = caslat; @@ -289,7 +339,7 @@ long int spd_sdram() effective_data_rate = 200; /* 10ns */ if (spd.clk_cycle3 == 0xa0) caslat = caslat - 2; - else if (spd.clk_cycle2 == 0x75) + else if (spd.clk_cycle2 == 0xa0) caslat = caslat - 1; else caslat = caslat; @@ -330,41 +380,197 @@ long int spd_sdram() * Errata DDR6 work around: input enable 2 cycles earlier. * including MPC834x Rev1.0/1.1 and MPC8360 Rev1.1/1.2. */ - if (caslat == 2) - ddr->debug_reg = 0x201c0000; /* CL=2 */ - else if (caslat == 3) - ddr->debug_reg = 0x202c0000; /* CL=2.5 */ - else if (caslat == 4) - ddr->debug_reg = 0x202c0000; /* CL=3.0 */ + if(PVR_MAJ(pvr) <= 1 && spd.mem_type == SPD_MEMTYPE_DDR){ + if (caslat == 2) + ddr->debug_reg = 0x201c0000; /* CL=2 */ + else if (caslat == 3) + ddr->debug_reg = 0x202c0000; /* CL=2.5 */ + else if (caslat == 4) + ddr->debug_reg = 0x202c0000; /* CL=3.0 */ - __asm__ __volatile__ ("sync"); + __asm__ __volatile__ ("sync"); - debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); + debug("Errata DDR6 (debug_reg=0x%08x)\n", ddr->debug_reg); + } /* - * note: caslat must also be programmed into ddr->sdram_mode - * register. - * - * note: WRREC(Twr) and WRTORD(Twtr) are not in SPD, - * use conservative value here. + * Convert caslat clocks to DDR controller value. + * Force caslat_ctrl to be DDR Controller field-sized. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + caslat_ctrl = (caslat + 1) & 0x07; + } else { + caslat_ctrl = (2 * caslat - 1) & 0x0f; + } + + debug("DDR: effective data rate is %d MHz\n", effective_data_rate); + debug("DDR: caslat SPD bit is %d, controller field is 0x%x\n", + caslat, caslat_ctrl); + + /* + * Timing Config 0. + * Avoid writing for DDR I. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + unsigned char taxpd_clk = 8; /* By the book. */ + unsigned char tmrd_clk = 2; /* By the book. */ + unsigned char act_pd_exit = 2; /* Empirical? */ + unsigned char pre_pd_exit = 6; /* Empirical? */ + + ddr->timing_cfg_0 = (0 + | ((act_pd_exit & 0x7) << 20) /* ACT_PD_EXIT */ + | ((pre_pd_exit & 0x7) << 16) /* PRE_PD_EXIT */ + | ((taxpd_clk & 0xf) << 8) /* ODT_PD_EXIT */ + | ((tmrd_clk & 0xf) << 0) /* MRS_CYC */ + ); + debug("DDR: timing_cfg_0 = 0x%08x\n", ddr->timing_cfg_0); + } + + /* + * For DDR I, WRREC(Twr) and WRTORD(Twtr) are not in SPD, + * use conservative value. + * For DDR II, they are bytes 36 and 37, in quarter nanos. */ - caslat_ctrl = (caslat + 1) & 0x07; /* see as above */ + + if (spd.mem_type == SPD_MEMTYPE_DDR) { + twr_clk = 3; /* Clocks */ + twtr_clk = 1; /* Clocks */ + } else { + twr_clk = picos_to_clk(spd.twr * 250); + twtr_clk = picos_to_clk(spd.twtr * 250); + } + + /* + * Calculate Trfc, in picos. + * DDR I: Byte 42 straight up in ns. + * DDR II: Byte 40 and 42 swizzled some, in ns. + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + trfc = spd.trfc * 1000; /* up to ps */ + } else { + unsigned int byte40_table_ps[8] = { + 0, + 250, + 330, + 500, + 660, + 750, + 0, + 0 + }; + + trfc = (((spd.trctrfc_ext & 0x1) * 256) + spd.trfc) * 1000 + + byte40_table_ps[(spd.trctrfc_ext >> 1) & 0x7]; + } + trfc_clk = picos_to_clk(trfc); + + /* + * Trcd, Byte 29, from quarter nanos to ps and clocks. + */ + trcd_clk = picos_to_clk(spd.trcd * 250) & 0x7; + + /* + * Convert trfc_clk to DDR controller fields. DDR I should + * fit in the REFREC field (16-19) of TIMING_CFG_1, but the + * 83xx controller has an extended REFREC field of three bits. + * The controller automatically adds 8 clocks to this value, + * so preadjust it down 8 first before splitting it up. + */ + trfc_low = (trfc_clk - 8) & 0xf; + trfc_high = ((trfc_clk - 8) >> 4) & 0x3; ddr->timing_cfg_1 = - (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | - ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | - ((picos_to_clk(spd.trcd * 250) & 0x07) << 20 ) | - ((caslat_ctrl & 0x07) << 16 ) | - (((picos_to_clk(spd.trfc * 1000) - 8) & 0x0f) << 12 ) | - ( 0x300 ) | - ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | 1); + (((picos_to_clk(spd.trp * 250) & 0x07) << 28 ) | /* PRETOACT */ + ((picos_to_clk(spd.tras * 1000) & 0x0f ) << 24 ) | /* ACTTOPRE */ + (trcd_clk << 20 ) | /* ACTTORW */ + (caslat_ctrl << 16 ) | /* CASLAT */ + (trfc_low << 12 ) | /* REFEC */ + ((twr_clk & 0x07) << 8) | /* WRRREC */ + ((picos_to_clk(spd.trrd * 250) & 0x07) << 4) | /* ACTTOACT */ + ((twtr_clk & 0x07) << 0) /* WRTORD */ + ); + + /* + * Additive Latency + * For DDR I, 0. + * For DDR II, with ODT enabled, use "a value" less than ACTTORW, + * which comes from Trcd, and also note that: + * add_lat + caslat must be >= 4 + */ + add_lat = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2 + && (odt_wr_cfg || odt_rd_cfg) + && (caslat < 4)) { + add_lat = trcd_clk - 1; + if ((add_lat + caslat) < 4) { + add_lat = 0; + } + } - ddr->timing_cfg_2 = 0x00000800; + /* + * Write Data Delay + * Historically 0x2 == 4/8 clock delay. + * Empirically, 0x3 == 6/8 clock delay is suggested for DDR I 266. + */ + wr_data_delay = 2; + + /* + * Write Latency + * Read to Precharge + * Minimum CKE Pulse Width. + * Four Activate Window + */ + if (spd.mem_type == SPD_MEMTYPE_DDR) { + /* + * This is a lie. It should really be 1, but if it is + * set to 1, bits overlap into the old controller's + * otherwise unused ACSM field. If we leave it 0, then + * the HW will magically treat it as 1 for DDR 1. Oh Yea. + */ + wr_lat = 0; + + trtp_clk = 2; /* By the book. */ + cke_min_clk = 1; /* By the book. */ + four_act = 1; /* By the book. */ + + } else { + wr_lat = caslat - 1; + + /* Convert SPD value from quarter nanos to picos. */ + trtp_clk = picos_to_clk(spd.trtp * 250); + + cke_min_clk = 3; /* By the book. */ + four_act = picos_to_clk(37500); /* By the book. 1k pages? */ + } + + /* + * Empirically set ~MCAS-to-preamble override for DDR 2. + * Your milage will vary. + */ + cpo = 0; + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + if (effective_data_rate == 266 || effective_data_rate == 333) { + cpo = 0x7; /* READ_LAT + 5/4 */ + } else if (effective_data_rate == 400) { + cpo = 0x9; /* READ_LAT + 7/4 */ + } else { + /* Automatic calibration */ + cpo = 0x1f; + } + } + + ddr->timing_cfg_2 = (0 + | ((add_lat & 0x7) << 28) /* ADD_LAT */ + | ((cpo & 0x1f) << 23) /* CPO */ + | ((wr_lat & 0x7) << 19) /* WR_LAT */ + | ((trtp_clk & 0x7) << 13) /* RD_TO_PRE */ + | ((wr_data_delay & 0x7) << 10) /* WR_DATA_DELAY */ + | ((cke_min_clk & 0x7) << 6) /* CKE_PLS */ + | ((four_act & 0x1f) << 0) /* FOUR_ACT */ + ); debug("DDR:timing_cfg_1=0x%08x\n", ddr->timing_cfg_1); debug("DDR:timing_cfg_2=0x%08x\n", ddr->timing_cfg_2); - /* Setup init value, but not enable */ - ddr->sdram_cfg = 0x42000000; /* Check DIMM data bus width */ if (spd.dataw_lsb == 0x20) { @@ -384,7 +590,8 @@ long int spd_sdram() /* Burst length is always 4 for 64 bit data bus, 8 for 32 bit data bus, Burst type is sequential */ - switch (caslat) { + if (spd.mem_type == SPD_MEMTYPE_DDR) { + switch (caslat) { case 1: ddr->sdram_mode = 0x50 | burstlen; /* CL=1.5 */ break; @@ -400,9 +607,36 @@ long int spd_sdram() default: printf("DDR:only CL 1.5, 2.0, 2.5, 3.0 is supported\n"); return 0; + } + } else { + mode_odt_enable = 0x0; /* Default disabled */ + if (odt_wr_cfg || odt_rd_cfg) { + /* + * Bits 6 and 2 in Extended MRS(1) + * Bit 2 == 0x04 == 75 Ohm, with 2 DIMM modules. + * Bit 6 == 0x40 == 150 Ohm, with 1 DIMM module. + */ + mode_odt_enable = 0x40; /* 150 Ohm */ + } + + ddr->sdram_mode = + (0 + | (1 << (16 + 10)) /* DQS Differential disable */ + | (add_lat << (16 + 3)) /* Additive Latency in EMRS1 */ + | (mode_odt_enable << 16) /* ODT Enable in EMRS1 */ + | ((twr_clk >> 1) << 9) /* Write Recovery Autopre */ + | (caslat << 4) /* caslat */ + | (burstlen << 0) /* Burst length */ + ); } debug("DDR:sdram_mode=0x%08x\n", ddr->sdram_mode); + /* + * Clear EMRS2 and EMRS3. + */ + ddr->sdram_mode2 = 0; + debug("DDR: sdram_mode2 = 0x%08x\n", ddr->sdram_mode2); + switch (spd.refresh) { case 0x00: case 0x80: @@ -440,10 +674,31 @@ long int spd_sdram() ddr->sdram_interval = ((refresh_clk & 0x3fff) << 16) | 0x100; debug("DDR:sdram_interval=0x%08x\n", ddr->sdram_interval); + /* + * SDRAM Cfg 2 + */ + odt_cfg = 0; + if (odt_rd_cfg | odt_wr_cfg) { + odt_cfg = 0x2; /* ODT to IOs during reads */ + } + if (spd.mem_type == SPD_MEMTYPE_DDR2) { + ddr->sdram_cfg2 = (0 + | (0 << 26) /* True DQS */ + | (odt_cfg << 21) /* ODT only read */ + | (1 << 12) /* 1 refresh at a time */ + ); + + debug("DDR: sdram_cfg2 = 0x%08x\n", ddr->sdram_cfg2); + } + +#ifdef CFG_DDR_SDRAM_CLK_CNTL /* Optional platform specific value */ + ddr->sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL; +#else /* SS_EN = 0, source synchronous disable * CLK_ADJST = 0, MCK/MCK# is launched aligned with addr/cmd */ ddr->sdram_clk_cntl = 0x00000000; +#endif debug("DDR:sdram_clk_cntl=0x%08x\n", ddr->sdram_clk_cntl); asm("sync;isync"); @@ -458,11 +713,22 @@ long int spd_sdram() * * sdram_cfg[0] = 1 (ddr sdram logic enable) * sdram_cfg[1] = 1 (self-refresh-enable) - * sdram_cfg[6:7] = 2 (SDRAM type = DDR SDRAM) + * sdram_cfg[5:7] = (SDRAM type = DDR SDRAM) + * 010 DDR 1 SDRAM + * 011 DDR 2 SDRAM * sdram_cfg[12] = 0 (32_BE =0 , 64 bit bus mode) * sdram_cfg[13] = 0 (8_BE =0, 4-beat bursts) */ - sdram_cfg = 0xC2000000; + if (spd.mem_type == SPD_MEMTYPE_DDR) + sdram_type = 2; + else + sdram_type = 3; + + sdram_cfg = (0 + | (1 << 31) /* DDR enable */ + | (1 << 30) /* Self refresh */ + | (sdram_type << 24) /* SDRAM type */ + ); /* sdram_cfg[3] = RD_EN - registered DIMM enable */ if (spd.mod_attr & 0x02) diff --git a/cpu/mpc83xx/speed.c b/cpu/mpc83xx/speed.c index 7e53b1e..c759930 100644 --- a/cpu/mpc83xx/speed.c +++ b/cpu/mpc83xx/speed.c @@ -99,7 +99,7 @@ int get_clocks(void) u32 lcrr; u32 csb_clk; -#if defined(CONFIG_MPC8349) +#if defined(CONFIG_MPC834X) u32 tsec1_clk; u32 tsec2_clk; u32 usbmph_clk; @@ -107,15 +107,19 @@ int get_clocks(void) #endif u32 core_clk; u32 i2c1_clk; +#if !defined(CONFIG_MPC832X) u32 i2c2_clk; +#endif u32 enc_clk; u32 lbiu_clk; u32 lclk_clk; u32 ddr_clk; -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) + u32 ddr_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) u32 qepmf; u32 qepdf; - u32 ddr_sec_clk; u32 qe_clk; u32 brg_clk; #endif @@ -139,12 +143,12 @@ int get_clocks(void) #endif } - spmf = ((im->reset.rcwl & RCWL_SPMF) >> RCWL_SPMF_SHIFT); + spmf = ((im->reset.rcwl & HRCWL_SPMF) >> HRCWL_SPMF_SHIFT); csb_clk = pci_sync_in * (1 + clkin_div) * spmf; sccr = im->clk.sccr; -#if defined(CONFIG_MPC8349) +#if defined(CONFIG_MPC834X) switch ((sccr & SCCR_TSEC1CM) >> SCCR_TSEC1CM_SHIFT) { case 0: tsec1_clk = 0; @@ -227,10 +231,12 @@ int get_clocks(void) return -9; } #endif -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) i2c1_clk = csb_clk; #endif +#if !defined(CONFIG_MPC832X) i2c2_clk = csb_clk; /* i2c-2 clk is equal to csb clk */ +#endif switch ((sccr & SCCR_ENCCM) >> SCCR_ENCCM_SHIFT) { case 0: @@ -249,12 +255,9 @@ int get_clocks(void) /* unkown SCCR_ENCCM value */ return -6; } -#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360) + lbiu_clk = csb_clk * - (1 + ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); -#else -#error Unknown MPC83xx chip -#endif + (1 + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); lcrr = (im->lbus.lcrr & LCRR_CLKDIV) >> LCRR_CLKDIV_SHIFT; switch (lcrr) { case 2: @@ -266,16 +269,13 @@ int get_clocks(void) /* unknown lcrr */ return -10; } -#if defined(CONFIG_MPC8349) || defined(CONFIG_MPC8360) + ddr_clk = csb_clk * - (1 + ((im->reset.rcwl & RCWL_DDRCM) >> RCWL_DDRCM_SHIFT)); - corepll = (im->reset.rcwl & RCWL_COREPLL) >> RCWL_COREPLL_SHIFT; -#if defined (CONFIG_MPC8360) + (1 + ((im->reset.rcwl & HRCWL_DDRCM) >> HRCWL_DDRCM_SHIFT)); + corepll = (im->reset.rcwl & HRCWL_COREPLL) >> HRCWL_COREPLL_SHIFT; +#if defined(CONFIG_MPC8360) ddr_sec_clk = csb_clk * (1 + - ((im->reset.rcwl & RCWL_LBIUCM) >> RCWL_LBIUCM_SHIFT)); -#endif -#else -#error Unknown MPC83xx chip + ((im->reset.rcwl & HRCWL_LBIUCM) >> HRCWL_LBIUCM_SHIFT)); #endif corecnf_tab_index = ((corepll & 0x1F) << 2) | ((corepll & 0x60) >> 5); @@ -306,15 +306,15 @@ int get_clocks(void) return -12; } -#if defined (CONFIG_MPC8360) - qepmf = (im->reset.rcwl & RCWL_CEPMF) >> RCWL_CEPMF_SHIFT; - qepdf = (im->reset.rcwl & RCWL_CEPDF) >> RCWL_CEPDF_SHIFT; +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) + qepmf = (im->reset.rcwl & HRCWL_CEPMF) >> HRCWL_CEPMF_SHIFT; + qepdf = (im->reset.rcwl & HRCWL_CEPDF) >> HRCWL_CEPDF_SHIFT; qe_clk = (pci_sync_in * qepmf) / (1 + qepdf); brg_clk = qe_clk / 2; #endif gd->csb_clk = csb_clk; -#if defined(CONFIG_MPC8349) +#if defined(CONFIG_MPC834X) gd->tsec1_clk = tsec1_clk; gd->tsec2_clk = tsec2_clk; gd->usbmph_clk = usbmph_clk; @@ -322,13 +322,17 @@ int get_clocks(void) #endif gd->core_clk = core_clk; gd->i2c1_clk = i2c1_clk; +#if !defined(CONFIG_MPC832X) gd->i2c2_clk = i2c2_clk; +#endif gd->enc_clk = enc_clk; gd->lbiu_clk = lbiu_clk; gd->lclk_clk = lclk_clk; gd->ddr_clk = ddr_clk; -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) gd->ddr_sec_clk = ddr_sec_clk; +#endif +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) gd->qe_clk = qe_clk; gd->brg_clk = brg_clk; #endif @@ -352,19 +356,22 @@ int print_clock_conf(void) printf("Clock configuration:\n"); printf(" Coherent System Bus: %4d MHz\n", gd->csb_clk / 1000000); printf(" Core: %4d MHz\n", gd->core_clk / 1000000); -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) || defined(CONFIG_MPC832X) printf(" QE: %4d MHz\n", gd->qe_clk / 1000000); + printf(" BRG: %4d MHz\n", gd->brg_clk / 1000000); #endif printf(" Local Bus Controller:%4d MHz\n", gd->lbiu_clk / 1000000); printf(" Local Bus: %4d MHz\n", gd->lclk_clk / 1000000); printf(" DDR: %4d MHz\n", gd->ddr_clk / 1000000); -#if defined (CONFIG_MPC8360) +#if defined(CONFIG_MPC8360) printf(" DDR Secondary: %4d MHz\n", gd->ddr_sec_clk / 1000000); #endif printf(" SEC: %4d MHz\n", gd->enc_clk / 1000000); printf(" I2C1: %4d MHz\n", gd->i2c1_clk / 1000000); +#if !defined(CONFIG_MPC832X) printf(" I2C2: %4d MHz\n", gd->i2c2_clk / 1000000); -#if defined(CONFIG_MPC8349) +#endif +#if defined(CONFIG_MPC834X) printf(" TSEC1: %4d MHz\n", gd->tsec1_clk / 1000000); printf(" TSEC2: %4d MHz\n", gd->tsec2_clk / 1000000); printf(" USB MPH: %4d MHz\n", gd->usbmph_clk / 1000000); diff --git a/cpu/mpc83xx/start.S b/cpu/mpc83xx/start.S index 0f27bb6..6ee9ec9 100644 --- a/cpu/mpc83xx/start.S +++ b/cpu/mpc83xx/start.S @@ -77,19 +77,11 @@ END_GOT /* - * Version string - must be in data segment because MPC83xx uses the - * first 256 bytes for the Hard Reset Configuration Word table (see - * below). Similarly, can't have the U-Boot Magic Number as the first - * thing in the image - don't know how this will affect the image tools, - * but I guess I'll find out soon. + * The Hard Reset Configuration Word (HRCW) table is in the first 64 + * (0x40) bytes of flash. It has 8 bytes, but each byte is repeated 8 + * times so the processor can fetch it out of flash whether the flash + * is 8, 16, 32, or 64 bits wide (hardware trickery). */ - .data - .globl version_string -version_string: - .ascii U_BOOT_VERSION - .ascii " (", __DATE__, " - ", __TIME__, ")" - .ascii " ", CONFIG_IDENT_STRING, "\0" - .text #define _HRCW_TABLE_ENTRY(w) \ .fill 8,1,(((w)>>24)&0xff); \ @@ -100,6 +92,18 @@ version_string: _HRCW_TABLE_ENTRY(CFG_HRCW_LOW) _HRCW_TABLE_ENTRY(CFG_HRCW_HIGH) +/* + * Magic number and version string - put it after the HRCW since it + * cannot be first in flash like it is in many other processors. + */ + .long 0x27051956 /* U-Boot Magic Number */ + + .globl version_string +version_string: + .ascii U_BOOT_VERSION + .ascii " (", __DATE__, " - ", __TIME__, ")" + .ascii " ", CONFIG_IDENT_STRING, "\0" + #ifndef CONFIG_DEFAULT_IMMR #error CONFIG_DEFAULT_IMMR must be defined diff --git a/cpu/mpc85xx/cpu.c b/cpu/mpc85xx/cpu.c index 0507c47..7735a52 100644 --- a/cpu/mpc85xx/cpu.c +++ b/cpu/mpc85xx/cpu.c @@ -1,5 +1,5 @@ /* - * Copyright 2004 Freescale Semiconductor. + * Copyright 2004,2007 Freescale Semiconductor, Inc. * (C) Copyright 2002, 2003 Motorola Inc. * Xianghua Xiao (X.Xiao@motorola.com) * @@ -70,6 +70,15 @@ int checkcpu (void) case SVR_8548_E: puts("8548_E"); break; + case SVR_8544: + puts("8544"); + break; + case SVR_8544_E: + puts("8544_E"); + break; + case SVR_8568_E: + puts("8568_E"); + break; default: puts("Unknown"); break; @@ -112,7 +121,7 @@ int checkcpu (void) #endif clkdiv = lcrr & 0x0f; if (clkdiv == 2 || clkdiv == 4 || clkdiv == 8) { -#ifdef CONFIG_MPC8548 +#if defined(CONFIG_MPC8548) || defined(CONFIG_MPC8544) /* * Yes, the entire PQ38 family use the same * bit-representation for twice the clock divider values. @@ -140,16 +149,25 @@ int checkcpu (void) int do_reset (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]) { + uint pvr; + uint ver; + pvr = get_pvr(); + ver = PVR_VER(pvr); + if (ver & 1){ + /* e500 v2 core has reset control register */ + volatile unsigned int * rstcr; + rstcr = (volatile unsigned int *)(CFG_IMMR + 0xE00B0); + *rstcr = 0x2; /* HRESET_REQ */ + }else{ /* * Initiate hard reset in debug control register DBCR0 * Make sure MSR[DE] = 1 */ - unsigned long val; - - val = mfspr(DBCR0); - val |= 0x70000000; - mtspr(DBCR0,val); - + unsigned long val; + val = mfspr(DBCR0); + val |= 0x70000000; + mtspr(DBCR0,val); + } return 1; } @@ -183,9 +201,9 @@ reset_85xx_watchdog(void) * Clear TSR(WIS) bit by writing 1 */ unsigned long val; - val = mfspr(tsr); - val |= 0x40000000; - mtspr(tsr, val); + val = mfspr(SPRN_TSR); + val |= TSR_WIS; + mtspr(SPRN_TSR, val); } #endif /* CONFIG_WATCHDOG */ @@ -196,6 +214,7 @@ void dma_init(void) { dma->satr0 = 0x02c40000; dma->datr0 = 0x02c40000; + dma->sr0 = 0xfffffff; /* clear any errors */ asm("sync; isync; msync"); return; } @@ -210,6 +229,10 @@ uint dma_check(void) { status = dma->sr0; } + /* clear MR0[CS] channel start bit */ + dma->mr0 &= 0x00000001; + asm("sync;isync;msync"); + if (status != 0) { printf ("DMA Error: status = %x\n", status); } @@ -245,6 +268,10 @@ ft_cpu_setup(void *blob, bd_t *bd) if (p != NULL) *p = cpu_to_be32(clock); + p = ft_get_prop(blob, "/qe@e0080000/" OF_CPU "/bus-frequency", &len); + if (p != NULL) + *p = cpu_to_be32(clock); + p = ft_get_prop(blob, "/" OF_SOC "/serial@4500/clock-frequency", &len); if (p != NULL) *p = cpu_to_be32(clock); @@ -255,21 +282,41 @@ ft_cpu_setup(void *blob, bd_t *bd) #if defined(CONFIG_MPC85XX_TSEC1) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len); + if (p) + memcpy(p, bd->bi_enetaddr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len); + if (p) memcpy(p, bd->bi_enetaddr, 6); #endif #if defined(CONFIG_HAS_ETH1) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len); + if (p) + memcpy(p, bd->bi_enet1addr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len); + if (p) memcpy(p, bd->bi_enet1addr, 6); #endif #if defined(CONFIG_HAS_ETH2) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/mac-address", &len); + if (p) + memcpy(p, bd->bi_enet2addr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/local-mac-address", &len); + if (p) memcpy(p, bd->bi_enet2addr, 6); #endif #if defined(CONFIG_HAS_ETH3) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/mac-address", &len); + if (p) + memcpy(p, bd->bi_enet3addr, 6); + + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/local-mac-address", &len); + if (p) memcpy(p, bd->bi_enet3addr, 6); #endif diff --git a/cpu/mpc85xx/cpu_init.c b/cpu/mpc85xx/cpu_init.c index 9f4d36c..9517146 100644 --- a/cpu/mpc85xx/cpu_init.c +++ b/cpu/mpc85xx/cpu_init.c @@ -143,12 +143,10 @@ void cpu_init_f (void) memctl->br1 = CFG_BR1_PRELIM; #endif -#if !defined(CONFIG_MPC85xx) #if defined(CFG_BR2_PRELIM) && defined(CFG_OR2_PRELIM) memctl->or2 = CFG_OR2_PRELIM; memctl->br2 = CFG_BR2_PRELIM; #endif -#endif #if defined(CFG_BR3_PRELIM) && defined(CFG_OR3_PRELIM) memctl->or3 = CFG_OR3_PRELIM; diff --git a/cpu/mpc85xx/pci.c b/cpu/mpc85xx/pci.c index 84f839a..3c1a323 100644 --- a/cpu/mpc85xx/pci.c +++ b/cpu/mpc85xx/pci.c @@ -90,14 +90,14 @@ pci_mpc85xx_init(struct pci_controller *board_hose) pcix->powbar1 = (CFG_PCI1_MEM_PHYS >> 12) & 0x000fffff; pcix->powbear1 = 0x00000000; pcix->powar1 = (POWAR_EN | POWAR_MEM_READ | - POWAR_MEM_WRITE | POWAR_MEM_512M); + POWAR_MEM_WRITE | (__ilog2(CFG_PCI1_MEM_SIZE) - 1)); pcix->potar2 = (CFG_PCI1_IO_BASE >> 12) & 0x000fffff; pcix->potear2 = 0x00000000; pcix->powbar2 = (CFG_PCI1_IO_PHYS >> 12) & 0x000fffff; pcix->powbear2 = 0x00000000; pcix->powar2 = (POWAR_EN | POWAR_IO_READ | - POWAR_IO_WRITE | POWAR_IO_1M); + POWAR_IO_WRITE | (__ilog2(CFG_PCI1_IO_SIZE) - 1)); pcix->pitar1 = 0x00000000; pcix->piwbar1 = 0x00000000; @@ -175,14 +175,14 @@ pci_mpc85xx_init(struct pci_controller *board_hose) pcix2->powbar1 = (CFG_PCI2_MEM_PHYS >> 12) & 0x000fffff; pcix2->powbear1 = 0x00000000; pcix2->powar1 = (POWAR_EN | POWAR_MEM_READ | - POWAR_MEM_WRITE | POWAR_MEM_512M); + POWAR_MEM_WRITE | (__ilog2(CFG_PCI2_MEM_SIZE) - 1)); pcix2->potar2 = (CFG_PCI2_IO_BASE >> 12) & 0x000fffff; pcix2->potear2 = 0x00000000; pcix2->powbar2 = (CFG_PCI2_IO_PHYS >> 12) & 0x000fffff; pcix2->powbear2 = 0x00000000; pcix2->powar2 = (POWAR_EN | POWAR_IO_READ | - POWAR_IO_WRITE | POWAR_IO_1M); + POWAR_IO_WRITE | (__ilog2(CFG_PCI2_IO_SIZE) - 1)); pcix2->pitar1 = 0x00000000; pcix2->piwbar1 = 0x00000000; diff --git a/cpu/mpc85xx/spd_sdram.c b/cpu/mpc85xx/spd_sdram.c index 6da5367..3777f49 100644 --- a/cpu/mpc85xx/spd_sdram.c +++ b/cpu/mpc85xx/spd_sdram.c @@ -263,13 +263,14 @@ spd_sdram(void) } /* - * Adjust DDR II IO voltage biasing. It just makes it work. + * Adjust DDR II IO voltage biasing. + * Only 8548 rev 1 needs the fix */ - if (spd.mem_type == SPD_MEMTYPE_DDR2) { - gur->ddrioovcr = (0 - | 0x80000000 /* Enable */ - | 0x10000000 /* VSEL to 1.8V */ - ); + if ((SVR_VER(get_svr()) == SVR_8548_E) && + (SVR_MJREV(get_svr()) == 1) && + (spd.mem_type == SPD_MEMTYPE_DDR2)) { + gur->ddrioovcr = (0x80000000 /* Enable */ + | 0x10000000);/* VSEL to 1.8V */ } /* @@ -786,14 +787,17 @@ spd_sdram(void) * Is this an ECC DDR chip? * But don't mess with it if the DDR controller will init mem. */ -#if defined(CONFIG_DDR_ECC) && !defined(CONFIG_ECC_INIT_VIA_DDRCONTROLLER) +#ifdef CONFIG_DDR_ECC if (spd.config == 0x02) { +#ifndef CONFIG_ECC_INIT_VIA_DDRCONTROLLER ddr->err_disable = 0x0000000d; +#endif ddr->err_sbe = 0x00ff0000; } + debug("DDR: err_disable = 0x%08x\n", ddr->err_disable); debug("DDR: err_sbe = 0x%08x\n", ddr->err_sbe); -#endif +#endif /* CONFIG_DDR_ECC */ asm("sync;isync;msync"); udelay(500); @@ -991,17 +995,24 @@ setup_laws_and_tlbs(unsigned int memsize) break; case 256: case 512: + tlb_size = BOOKE_PAGESZ_256M; + break; case 1024: case 2048: - tlb_size = BOOKE_PAGESZ_256M; + if (PVR_VER(get_pvr()) > PVR_VER(PVR_85xx)) + tlb_size = BOOKE_PAGESZ_1G; + else + tlb_size = BOOKE_PAGESZ_256M; break; default: puts("DDR: only 16M,32M,64M,128M,256M,512M,1G and 2G are supported.\n"); /* * The memory was not able to be mapped. + * Default to a small size. */ - return 0; + tlb_size = BOOKE_PAGESZ_64M; + memsize=64; break; } diff --git a/cpu/mpc85xx/speed.c b/cpu/mpc85xx/speed.c index ca81ee7..12359a2 100644 --- a/cpu/mpc85xx/speed.c +++ b/cpu/mpc85xx/speed.c @@ -37,49 +37,21 @@ void get_sys_info (sys_info_t * sysInfo) { volatile immap_t *immap = (immap_t *)CFG_IMMR; volatile ccsr_gur_t *gur = &immap->im_gur; - uint plat_ratio,e500_ratio; + uint plat_ratio,e500_ratio,half_freqSystemBus; plat_ratio = (gur->porpllsr) & 0x0000003e; plat_ratio >>= 1; - switch(plat_ratio) { - case 0x02: - case 0x03: - case 0x04: - case 0x05: - case 0x06: - case 0x08: - case 0x09: - case 0x0a: - case 0x0c: - case 0x10: - sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ; - break; - default: - sysInfo->freqSystemBus = 0; - break; - } - + sysInfo->freqSystemBus = plat_ratio * CONFIG_SYS_CLK_FREQ; e500_ratio = (gur->porpllsr) & 0x003f0000; e500_ratio >>= 16; - switch(e500_ratio) { - case 0x04: - sysInfo->freqProcessor = 2*sysInfo->freqSystemBus; - break; - case 0x05: - sysInfo->freqProcessor = 5*sysInfo->freqSystemBus/2; - break; - case 0x06: - sysInfo->freqProcessor = 3*sysInfo->freqSystemBus; - break; - case 0x07: - sysInfo->freqProcessor = 7*sysInfo->freqSystemBus/2; - break; - default: - sysInfo->freqProcessor = 0; - break; - } + + /* Divide before multiply to avoid integer + * overflow for processor speeds above 2GHz */ + half_freqSystemBus = sysInfo->freqSystemBus/2; + sysInfo->freqProcessor = e500_ratio*half_freqSystemBus; } + int get_clocks (void) { sys_info_t sys_info; diff --git a/cpu/mpc85xx/start.S b/cpu/mpc85xx/start.S index f96a4c3..20c7ebc 100644 --- a/cpu/mpc85xx/start.S +++ b/cpu/mpc85xx/start.S @@ -251,13 +251,10 @@ _start_e500: */ bl tlb1_entry mr r5,r0 - li r1,0x0020 /* max 16 TLB1 plus some TLB0 entries */ - mtctr r1 lwzu r4,0(r5) /* how many TLB1 entries we actually use */ + mtctr r4 -0: cmpwi r4,0 - beq 1f - lwzu r0,4(r5) +0: lwzu r0,4(r5) lwzu r1,4(r5) lwzu r2,4(r5) lwzu r3,4(r5) @@ -269,7 +266,6 @@ _start_e500: msync tlbwe isync - addi r4,r4,-1 bdnz 0b 1: @@ -301,20 +297,16 @@ _start_e500: bl law_entry mr r6,r0 - li r1,0x0007 /* 8 LAWs, but reserve one for boot-over-rio-or-pci */ - mtctr r1 lwzu r5,0(r6) /* how many windows we actually use */ + mtctr r5 li r2,0x0c28 /* the first pair is reserved for boot-over-rio-or-pci */ li r1,0x0c30 -0: cmpwi r5,0 - beq 1f - lwzu r4,4(r6) +0: lwzu r4,4(r6) lwzu r3,4(r6) stwx r4,r7,r2 stwx r3,r7,r1 - addi r5,r5,-1 addi r2,r2,0x0020 addi r1,r1,0x0020 bdnz 0b diff --git a/cpu/mpc86xx/cpu.c b/cpu/mpc86xx/cpu.c index 551b243..a33acfe 100644 --- a/cpu/mpc86xx/cpu.c +++ b/cpu/mpc86xx/cpu.c @@ -32,12 +32,6 @@ #include <ft_build.h> #endif -#ifdef CONFIG_MPC8641HPCN -extern void mpc8641_reset_board(cmd_tbl_t *cmdtp, int flag, - int argc, char *argv[]); -#endif - - int checkcpu(void) { @@ -185,7 +179,7 @@ do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) #else /* CONFIG_MPC8641HPCN */ - mpc8641_reset_board(cmdtp, flag, argc, argv); + out8(PIXIS_BASE + PIXIS_RST, 0); #endif /* !CONFIG_MPC8641HPCN */ @@ -286,22 +280,38 @@ ft_cpu_setup(void *blob, bd_t *bd) #if defined(CONFIG_MPC86XX_TSEC1) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/mac-address", &len); - memcpy(p, bd->bi_enetaddr, 6); + if (p != NULL) + memcpy(p, bd->bi_enetaddr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@24000/local-mac-address", &len); + if (p) + memcpy(p, bd->bi_enetaddr, 6); #endif #if defined(CONFIG_MPC86XX_TSEC2) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/mac-address", &len); - memcpy(p, bd->bi_enet1addr, 6); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@25000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet1addr, 6); #endif #if defined(CONFIG_MPC86XX_TSEC3) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/mac-address", &len); - memcpy(p, bd->bi_enet2addr, 6); + if (p != NULL) + memcpy(p, bd->bi_enet2addr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@26000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet2addr, 6); #endif #if defined(CONFIG_MPC86XX_TSEC4) p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/mac-address", &len); - memcpy(p, bd->bi_enet3addr, 6); + if (p != NULL) + memcpy(p, bd->bi_enet3addr, 6); + p = ft_get_prop(blob, "/" OF_SOC "/ethernet@27000/local-mac-address", &len); + if (p != NULL) + memcpy(p, bd->bi_enet3addr, 6); #endif } diff --git a/cpu/mpc86xx/interrupts.c b/cpu/mpc86xx/interrupts.c index 1df6cdc..49820bb 100644 --- a/cpu/mpc86xx/interrupts.c +++ b/cpu/mpc86xx/interrupts.c @@ -80,6 +80,26 @@ int interrupt_init(void) { int ret; + /* + * The IRQ0 on Rev 2 is pulled high (low in Rev 1.x) to + * implement PEX10 errata. As INT is active high, it + * will cause core to take 0x500 interrupt. + * + * Due to the PIC's default pass through mode, as soon + * as interrupts are enabled (MSR[EE] = 1), an interrupt + * will be taken and u-boot will hang. This is due to a + * hardware change (per an errata fix) on new revisions + * of the board with Rev 2.x parts. + * + * Setting the PIC to mixed mode prevents the hang. + */ + if ((get_svr() & 0xf0) == 0x20) { + volatile immap_t *immr = (immap_t *)CFG_IMMR; + immr->im_pic.gcr = MPC86xx_PICGCR_RST; + while (immr->im_pic.gcr & MPC86xx_PICGCR_RST); + immr->im_pic.gcr = MPC86xx_PICGCR_MODE; + } + /* call cpu specific function from $(CPU)/interrupts.c */ ret = interrupt_init_cpu(&decrementer_count); diff --git a/cpu/mpc86xx/spd_sdram.c b/cpu/mpc86xx/spd_sdram.c index b18e822..f37ab43 100644 --- a/cpu/mpc86xx/spd_sdram.c +++ b/cpu/mpc86xx/spd_sdram.c @@ -51,20 +51,32 @@ extern int dma_xfer(void *dest, uint count, void *src); #define CFG_SUPER_BANK_INTERLEAVING 0 /* - * Convert picoseconds into clock cycles (rounding up if needed). + * Convert picoseconds into DRAM clock cycles (rounding up if needed). */ -int -picos_to_clk(int picos) +static unsigned int +picos_to_clk(unsigned int picos) { - int clks; - - clks = picos / (2000000000 / (get_bus_freq(0) / 1000)); - if (picos % (2000000000 / (get_bus_freq(0) / 1000)) != 0) { + /* use unsigned long long to avoid rounding errors */ + const unsigned long long ULL_2e12 = 2000000000000ULL; + unsigned long long clks; + unsigned long long clks_temp; + + if (! picos) + return 0; + + clks = get_bus_freq(0) * (unsigned long long) picos; + clks_temp = clks; + clks = clks / ULL_2e12; + if (clks_temp % ULL_2e12) { clks++; } - return clks; + if (clks > 0xFFFFFFFFULL) { + clks = 0xFFFFFFFFULL; + } + + return (unsigned int) clks; } @@ -284,9 +296,9 @@ spd_init(unsigned char i2c_address, unsigned int ddr_num, } /* - * Adjust DDR II IO voltage biasing. It just makes it work. + * Adjust DDR II IO voltage biasing. Rev1 only */ - if (spd.mem_type == SPD_MEMTYPE_DDR2) { + if (((get_svr() & 0xf0) == 0x10) && (spd.mem_type == SPD_MEMTYPE_DDR2)) { gur->ddrioovcr = (0 | 0x80000000 /* Enable */ | 0x10000000 /* VSEL to 1.8V */ diff --git a/cpu/mpc86xx/start.S b/cpu/mpc86xx/start.S index 7406fe2..67c56db 100644 --- a/cpu/mpc86xx/start.S +++ b/cpu/mpc86xx/start.S @@ -241,26 +241,40 @@ in_flash: bl setup_ccsrbar #endif - /* Fix for SMP linux - Changing arbitration to round-robin */ - lis r3, CFG_CCSRBAR@h - ori r3, r3, 0x1000 - xor r4, r4, r4 - li r4, 0x1000 - stw r4, 0(r3) - /* setup the law entries */ - bl law_entry + /* -- MPC8641 Rev 1.0 MCM Errata fixups -- */ + + /* skip fixups if not Rev 1.0 */ + mfspr r4, SVR + rlwinm r4,r4,0,24,31 + cmpwi r4,0x10 + bne 1f + + lis r3,MCM_ABCR@ha + lwz r4,MCM_ABCR@l(r3) /* ABCR -> r4 */ + + /* set ABCR[A_STRM_CNT] = 0 */ + rlwinm r4,r4,0,0,29 + + /* set ABCR[ARB_POLICY] to 0x1 (round-robin) */ + addi r0,r0,1 + rlwimi r4,r0,12,18,19 + + stw r4,MCM_ABCR@l(r3) /* r4 -> ABCR */ sync - /* Don't use this feature due to bug in 8641D PD4 */ - /* Disable ERD_DIS */ - lis r3, CFG_CCSRBAR@h - ori r3, r3, 0x1008 - lwz r4, 0(r3) + /* Set DBCR[ERD_DIS] */ + lis r3,MCM_DBCR@ha + lwz r4,MCM_DBCR@l(r3) oris r4, r4, 0x4000 - stw r4, 0(r3) + stw r4,MCM_DBCR@l(r3) + sync +1: + /* setup the law entries */ + bl law_entry sync + #if (EMULATOR_RUN == 1) /* On the emulator we want to adjust these ASAP */ /* otherwise things are sloooow */ diff --git a/cpu/mpc8xx/serial.c b/cpu/mpc8xx/serial.c index 9d0fc6b..ffc898c 100644 --- a/cpu/mpc8xx/serial.c +++ b/cpu/mpc8xx/serial.c @@ -236,8 +236,7 @@ static int smc_init (void) im->im_ioport.iop_pdpar |= 0x800; im->im_ioport.iop_pddir &= ~0x800; - cp->cp_simode = 0x0000; - cp->cp_simode |= 0x7000; + cp->cp_simode = ((cp->cp_simode & ~0xf000) | 0x7000); #else /* Set up the baud rate generator */ smc_setbrg (); diff --git a/cpu/ppc4xx/44x_spd_ddr.c b/cpu/ppc4xx/44x_spd_ddr.c index 32d44db..10b4c18 100644 --- a/cpu/ppc4xx/44x_spd_ddr.c +++ b/cpu/ppc4xx/44x_spd_ddr.c @@ -46,6 +46,7 @@ #include <asm/processor.h> #include <i2c.h> #include <ppc4xx.h> +#include <asm/mmu.h> #if defined(CONFIG_SPD_EEPROM) && \ (defined(CONFIG_440GP) || defined(CONFIG_440GX) || \ @@ -229,6 +230,22 @@ #define TRUE 1 #define FALSE 0 +/* + * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory + * region. Right now the cache should still be disabled in U-Boot because of the + * EMAC driver, that need it's buffer descriptor to be located in non cached + * memory. + * + * If at some time this restriction doesn't apply anymore, just define + * CFG_ENABLE_SDRAM_CACHE in the board config file and this code should setup + * everything correctly. + */ +#ifdef CFG_ENABLE_SDRAM_CACHE +#define MY_TLB_WORD2_I_ENABLE 0 /* enable caching on SDRAM */ +#else +#define MY_TLB_WORD2_I_ENABLE TLB_WORD2_I_ENABLE /* disable caching on SDRAM */ +#endif + const unsigned long test[NUMMEMTESTS][NUMMEMWORDS] = { {0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF, 0x00000000, 0x00000000, 0xFFFFFFFF, 0xFFFFFFFF}, @@ -259,6 +276,7 @@ typedef struct bank_param BANKPARMS; #ifdef CFG_SIMULATE_SPD_EEPROM extern unsigned char cfg_simulate_spd_eeprom[128]; #endif +void program_tlb(u32 start, u32 size, u32 tlb_word2_i_value); unsigned char spd_read(uchar chip, uint addr); @@ -377,6 +395,11 @@ long int spd_sdram(void) { total_size = program_bxcr(dimm_populated, iic0_dimm_addr, num_dimm_banks); +#ifdef CONFIG_PROG_SDRAM_TLB /* this define should eventually be removed */ + /* and program tlb entries for this size (dynamic) */ + program_tlb(0, total_size, MY_TLB_WORD2_I_ENABLE); +#endif + /* * program SDRAM Clock Timing Register (SDRAM0_CLKTR) */ @@ -1330,11 +1353,11 @@ unsigned long program_bxcr(unsigned long* dimm_populated, */ cr |= SDRAM_BXCR_SDBE; - for (i = 0; i < num_banks; i++) { - bank_parms[ctrl_bank_num[dimm_num]+i].bank_size_bytes = + for (i = 0; i < num_banks; i++) { + bank_parms[ctrl_bank_num[dimm_num]+i+dimm_num].bank_size_bytes = (4 * 1024 * 1024) * bank_size_id; - bank_parms[ctrl_bank_num[dimm_num]+i].cr = cr; - } + bank_parms[ctrl_bank_num[dimm_num]+i+dimm_num].cr = cr; + } } } diff --git a/cpu/ppc4xx/44x_spd_ddr2.c b/cpu/ppc4xx/44x_spd_ddr2.c index 35b2315..2ecd3e4 100644 --- a/cpu/ppc4xx/44x_spd_ddr2.c +++ b/cpu/ppc4xx/44x_spd_ddr2.c @@ -107,10 +107,11 @@ #define CALC_ODT_RW(n) (CALC_ODT_R(n) | CALC_ODT_W(n)) /* Defines for the Read Cycle Delay test */ -#define NUMMEMTESTS 8 -#define NUMMEMWORDS 8 +#define NUMMEMTESTS 8 +#define NUMMEMWORDS 8 +#define NUMLOOPS 256 /* memory test loops */ -#define CONFIG_ECC_ERROR_RESET /* test-only: see description below, at check_ecc() */ +#undef CONFIG_ECC_ERROR_RESET /* test-only: see description below, at check_ecc() */ /* * This DDR2 setup code can dynamically setup the TLB entries for the DDR2 memory @@ -168,8 +169,8 @@ static void program_codt(unsigned long *dimm_populated, static void program_mode(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t *selected_cas, - int *write_recovery); + ddr_cas_id_t *selected_cas, + int *write_recovery); static void program_tr(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks); @@ -185,9 +186,10 @@ static void program_copt1(unsigned long *dimm_populated, static void program_initplr(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t selected_cas, + ddr_cas_id_t selected_cas, int write_recovery); static unsigned long is_ecc_enabled(void); +#ifdef CONFIG_DDR_ECC static void program_ecc(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, @@ -195,6 +197,7 @@ static void program_ecc(unsigned long *dimm_populated, static void program_ecc_addr(unsigned long start_address, unsigned long num_bytes, unsigned long tlb_word2_i_value); +#endif static void program_DQS_calibration(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks); @@ -255,15 +258,6 @@ static void mtdcr_any(u32 dcr, u32 val) } } -static void wait_ddr_idle(void) -{ - u32 val; - - do { - mfsdram(SDRAM_MCSTAT, val); - } while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT); -} - static unsigned char spd_read(uchar chip, uint addr) { unsigned char data[2]; @@ -491,7 +485,7 @@ long int initdram(int board_type) (val & ~(SDRAM_MEMODE_DIC_MASK | SDRAM_MEMODE_DLL_MASK | SDRAM_MEMODE_RTT_MASK | SDRAM_MEMODE_DQS_MASK)) | (SDRAM_MEMODE_DIC_NORMAL | SDRAM_MEMODE_DLL_ENABLE - | SDRAM_MEMODE_RTT_75OHM | SDRAM_MEMODE_DQS_ENABLE)); + | SDRAM_MEMODE_RTT_150OHM | SDRAM_MEMODE_DQS_ENABLE)); /*------------------------------------------------------------------ * Program Initialization preload registers. @@ -537,10 +531,12 @@ long int initdram(int board_type) *-----------------------------------------------------------------*/ program_DQS_calibration(dimm_populated, iic0_dimm_addr, num_dimm_banks); +#ifdef CONFIG_DDR_ECC /*------------------------------------------------------------------ * If ecc is enabled, initialize the parity bits. *-----------------------------------------------------------------*/ program_ecc(dimm_populated, iic0_dimm_addr, num_dimm_banks, MY_TLB_WORD2_I_ENABLE); +#endif #ifdef DEBUG ppc440sp_sdram_register_dump(); @@ -589,10 +585,23 @@ static void get_spd_info(unsigned long *dimm_populated, #ifdef CONFIG_ADD_RAM_INFO void board_add_ram_info(int use_default) { + PPC440_SYS_INFO board_cfg; + u32 val; + if (is_ecc_enabled()) - puts(" (ECC enabled)"); + puts(" (ECC"); else - puts(" (ECC not enabled)"); + puts(" (ECC not"); + + get_sys_info(&board_cfg); + + mfsdr(SDR0_DDR0, val); + val = MULDIV64((board_cfg.freqPLB), SDR0_DDR0_DDRM_DECODE(val), 1); + printf(" enabled, %d MHz", (val * 2) / 1000000); + + mfsdram(SDRAM_MMODE, val); + val = (val & SDRAM_MMODE_DCL_MASK) >> 4; + printf(", CL%d)", val); } #endif @@ -702,7 +711,7 @@ static void check_frequency(unsigned long *dimm_populated, *-----------------------------------------------------------------*/ get_sys_info(&board_cfg); - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); /* @@ -736,6 +745,7 @@ static void check_frequency(unsigned long *dimm_populated, else cycle_time = (((tcyc_reg & 0xF0) >> 4) * 100) + ((tcyc_reg & 0x0F)*10); + debug("cycle_time=%d [10 picoseconds]\n", cycle_time); if (cycle_time > (calc_cycle_time + 10)) { /* @@ -877,7 +887,11 @@ static void program_copt1(unsigned long *dimm_populated, unsigned long ddrtype; unsigned long val; +#ifdef CONFIG_DDR_ECC ecc_enabled = TRUE; +#else + ecc_enabled = FALSE; +#endif dimm_32bit = FALSE; dimm_64bit = FALSE; buf0 = FALSE; @@ -1110,7 +1124,7 @@ static void program_codt(unsigned long *dimm_populated, modt3 = 0x00000000; } } - } else { + } else { codt |= SDRAM_CODT_DQS_2_5_V_DDR1; modt0 = 0x00000000; modt1 = 0x00000000; @@ -1149,7 +1163,7 @@ static void program_codt(unsigned long *dimm_populated, static void program_initplr(unsigned long *dimm_populated, unsigned char *iic0_dimm_addr, unsigned long num_dimm_banks, - ddr_cas_id_t selected_cas, + ddr_cas_id_t selected_cas, int write_recovery) { u32 cas = 0; @@ -1314,8 +1328,9 @@ static void program_mode(unsigned long *dimm_populated, *-----------------------------------------------------------------*/ get_sys_info(&board_cfg); - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = MULDIV64((board_cfg.freqPLB), SDR0_DDR0_DDRM_DECODE(sdr_ddrpll), 1); + debug("sdram_freq=%d\n", sdram_freq); /*------------------------------------------------------------------ * Handle the timing. We need to find the worst case timing of all @@ -1345,6 +1360,7 @@ static void program_mode(unsigned long *dimm_populated, /* t_wr_ns = max(t_wr_ns, (unsigned long)dimm_spd[dimm_num][36] >> 2); */ /* not used in this loop. */ cas_bit = spd_read(iic0_dimm_addr[dimm_num], 18); + debug("cas_bit[SPD byte 18]=%02x\n", cas_bit); /* For a particular DIMM, grab the three CAS values it supports */ for (cas_index = 0; cas_index < 3; cas_index++) { @@ -1363,7 +1379,8 @@ static void program_mode(unsigned long *dimm_populated, if ((tcyc_reg & 0x0F) >= 10) { if ((tcyc_reg & 0x0F) == 0x0D) { /* Convert from hex to decimal */ - cycle_time_ns_x_100[cas_index] = (((tcyc_reg & 0xF0) >> 4) * 100) + 75; + cycle_time_ns_x_100[cas_index] = + (((tcyc_reg & 0xF0) >> 4) * 100) + 75; } else { printf("ERROR: SPD reported Tcyc is incorrect for DIMM " "in slot %d\n", (unsigned int)dimm_num); @@ -1371,9 +1388,12 @@ static void program_mode(unsigned long *dimm_populated, } } else { /* Convert from hex to decimal */ - cycle_time_ns_x_100[cas_index] = (((tcyc_reg & 0xF0) >> 4) * 100) + + cycle_time_ns_x_100[cas_index] = + (((tcyc_reg & 0xF0) >> 4) * 100) + ((tcyc_reg & 0x0F)*10); } + debug("cas_index=%d: cycle_time_ns_x_100=%d\n", cas_index, + cycle_time_ns_x_100[cas_index]); } /* The rest of this routine determines if CAS 2.0, 2.5, 3.0, 4.0 and 5.0 are */ @@ -1386,8 +1406,10 @@ static void program_mode(unsigned long *dimm_populated, * Bit 7 6 5 4 3 2 1 0 * TBD 4.0 3.5 3.0 2.5 2.0 1.5 1.0 */ - if (((cas_bit & 0x40) == 0x40) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_4_0_tcyc_ns_x_100 = max(max_4_0_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x40) == 0x40) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_4_0_tcyc_ns_x_100 = max(max_4_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1395,8 +1417,10 @@ static void program_mode(unsigned long *dimm_populated, cas_4_0_available = FALSE; } - if (((cas_bit & 0x10) == 0x10) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_3_0_tcyc_ns_x_100 = max(max_3_0_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x10) == 0x10) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_3_0_tcyc_ns_x_100 = max(max_3_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1404,8 +1428,10 @@ static void program_mode(unsigned long *dimm_populated, cas_3_0_available = FALSE; } - if (((cas_bit & 0x08) == 0x08) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_2_5_tcyc_ns_x_100 = max(max_2_5_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x08) == 0x08) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_2_5_tcyc_ns_x_100 = max(max_2_5_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1413,8 +1439,10 @@ static void program_mode(unsigned long *dimm_populated, cas_2_5_available = FALSE; } - if (((cas_bit & 0x04) == 0x04) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_2_0_tcyc_ns_x_100 = max(max_2_0_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x04) == 0x04) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_2_0_tcyc_ns_x_100 = max(max_2_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1427,8 +1455,10 @@ static void program_mode(unsigned long *dimm_populated, * Bit 7 6 5 4 3 2 1 0 * TBD 6.0 5.0 4.0 3.0 2.0 TBD TBD */ - if (((cas_bit & 0x20) == 0x20) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_5_0_tcyc_ns_x_100 = max(max_5_0_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x20) == 0x20) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_5_0_tcyc_ns_x_100 = max(max_5_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1436,8 +1466,10 @@ static void program_mode(unsigned long *dimm_populated, cas_5_0_available = FALSE; } - if (((cas_bit & 0x10) == 0x10) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_4_0_tcyc_ns_x_100 = max(max_4_0_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x10) == 0x10) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_4_0_tcyc_ns_x_100 = max(max_4_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1445,8 +1477,10 @@ static void program_mode(unsigned long *dimm_populated, cas_4_0_available = FALSE; } - if (((cas_bit & 0x08) == 0x08) && (cas_index < 3) && (cycle_time_ns_x_100[cas_index] != 0)) { - max_3_0_tcyc_ns_x_100 = max(max_3_0_tcyc_ns_x_100, cycle_time_ns_x_100[cas_index]); + if (((cas_bit & 0x08) == 0x08) && (cas_index < 3) && + (cycle_time_ns_x_100[cas_index] != 0)) { + max_3_0_tcyc_ns_x_100 = max(max_3_0_tcyc_ns_x_100, + cycle_time_ns_x_100[cas_index]); cas_index++; } else { if (cas_index != 0) @@ -1463,11 +1497,15 @@ static void program_mode(unsigned long *dimm_populated, mfsdram(SDRAM_MMODE, mmode); mmode = mmode & ~(SDRAM_MMODE_WR_MASK | SDRAM_MMODE_DCL_MASK); - cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100); - cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100); - cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100); - cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100); - cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100); + /* add 10 here because of rounding problems */ + cycle_2_0_clk = MULDIV64(ONE_BILLION, 100, max_2_0_tcyc_ns_x_100) + 10; + cycle_2_5_clk = MULDIV64(ONE_BILLION, 100, max_2_5_tcyc_ns_x_100) + 10; + cycle_3_0_clk = MULDIV64(ONE_BILLION, 100, max_3_0_tcyc_ns_x_100) + 10; + cycle_4_0_clk = MULDIV64(ONE_BILLION, 100, max_4_0_tcyc_ns_x_100) + 10; + cycle_5_0_clk = MULDIV64(ONE_BILLION, 100, max_5_0_tcyc_ns_x_100) + 10; + debug("cycle_3_0_clk=%d\n", cycle_3_0_clk); + debug("cycle_4_0_clk=%d\n", cycle_4_0_clk); + debug("cycle_5_0_clk=%d\n", cycle_5_0_clk); if (sdram_ddr1 == TRUE) { /* DDR1 */ if ((cas_2_0_available == TRUE) && (sdram_freq <= cycle_2_0_clk)) { @@ -1486,6 +1524,9 @@ static void program_mode(unsigned long *dimm_populated, hang(); } } else { /* DDR2 */ + debug("cas_3_0_available=%d\n", cas_3_0_available); + debug("cas_4_0_available=%d\n", cas_4_0_available); + debug("cas_5_0_available=%d\n", cas_5_0_available); if ((cas_3_0_available == TRUE) && (sdram_freq <= cycle_3_0_clk)) { mmode |= SDRAM_MMODE_DCL_DDR2_3_0_CLK; *selected_cas = DDR_CAS_3; @@ -1498,7 +1539,11 @@ static void program_mode(unsigned long *dimm_populated, } else { printf("ERROR: Cannot find a supported CAS latency with the installed DIMMs.\n"); printf("Only DIMMs DDR2 with CAS latencies of 3.0, 4.0, and 5.0 are supported.\n"); - printf("Make sure the PLB speed is within the supported range of the DIMMs.\n\n"); + printf("Make sure the PLB speed is within the supported range of the DIMMs.\n"); + printf("cas3=%d cas4=%d cas5=%d\n", + cas_3_0_available, cas_4_0_available, cas_5_0_available); + printf("sdram_freq=%d cycle3=%d cycle4=%d cycle5=%d\n\n", + sdram_freq, cycle_3_0_clk, cycle_4_0_clk, cycle_5_0_clk); hang(); } } @@ -1575,7 +1620,7 @@ static void program_rtr(unsigned long *dimm_populated, /*------------------------------------------------------------------ * Set the SDRAM Refresh Timing Register, SDRAM_RTR *-----------------------------------------------------------------*/ - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); max_refresh_rate = 0; @@ -1661,7 +1706,7 @@ static void program_tr(unsigned long *dimm_populated, *-----------------------------------------------------------------*/ get_sys_info(&board_cfg); - mfsdr(sdr_ddr0, sdr_ddrpll); + mfsdr(SDR0_DDR0, sdr_ddrpll); sdram_freq = ((board_cfg.freqPLB) * SDR0_DDR0_DDRM_DECODE(sdr_ddrpll)); /*------------------------------------------------------------------ @@ -2069,7 +2114,7 @@ static void program_memory_queue(unsigned long *dimm_populated, * Set the sizes *-----------------------------------------------------------------*/ baseadd_size = 0; - rank_size_bytes = 1024 * 1024 * rank_size_id; + rank_size_bytes = 4 * 1024 * 1024 * rank_size_id; switch (rank_size_id) { case 0x02: baseadd_size |= SDRAM_RXBAS_SDSZ_8; @@ -2106,8 +2151,8 @@ static void program_memory_queue(unsigned long *dimm_populated, for (i = 0; i < num_ranks; i++) { mtdcr_any(rank_reg+i+dimm_num+bank_0_populated, - (rank_base_addr & SDRAM_RXBAS_SDBA_MASK) | - baseadd_size); + (SDRAM_RXBAS_SDBA_ENCODE(rank_base_addr) | + baseadd_size)); rank_base_addr += rank_size_bytes; } } @@ -2130,9 +2175,22 @@ static unsigned long is_ecc_enabled(void) ecc = max(ecc, SDRAM_MCOPT1_MCHK_CHK_DECODE(val)); } - return(ecc); + return ecc; } +static void blank_string(int size) +{ + int i; + + for (i=0; i<size; i++) + putc('\b'); + for (i=0; i<size; i++) + putc(' '); + for (i=0; i<size; i++) + putc('\b'); +} + +#ifdef CONFIG_DDR_ECC /*-----------------------------------------------------------------------------+ * program_ecc. *-----------------------------------------------------------------------------*/ @@ -2208,6 +2266,15 @@ static void check_ecc(void) } #endif +static void wait_ddr_idle(void) +{ + u32 val; + + do { + mfsdram(SDRAM_MCSTAT, val); + } while ((val & SDRAM_MCSTAT_IDLE_MASK) == SDRAM_MCSTAT_IDLE_NOT); +} + /*-----------------------------------------------------------------------------+ * program_ecc_addr. *-----------------------------------------------------------------------------*/ @@ -2219,8 +2286,10 @@ static void program_ecc_addr(unsigned long start_address, unsigned long end_address; unsigned long address_increment; unsigned long mcopt1; - char str[] = "ECC generation..."; - int i; + char str[] = "ECC generation -"; + char slash[] = "\\|/-\\|/-"; + int loop = 0; + int loopi = 0; current_address = start_address; mfsdram(SDRAM_MCOPT1, mcopt1); @@ -2243,14 +2312,20 @@ static void program_ecc_addr(unsigned long start_address, while (current_address < end_address) { *((unsigned long *)current_address) = 0x00000000; current_address += address_increment; + + if ((loop++ % (2 << 20)) == 0) { + putc('\b'); + putc(slash[loopi++ % 8]); + } } + } else { /* ECC bit set method for cached memory */ dcbz_area(start_address, num_bytes); dflush(); } - for (i=0; i<strlen(str); i++) - putc('\b'); + + blank_string(strlen(str)); sync(); eieio(); @@ -2276,6 +2351,7 @@ static void program_ecc_addr(unsigned long start_address, #endif } } +#endif /*-----------------------------------------------------------------------------+ * program_DQS_calibration. @@ -2332,7 +2408,7 @@ static void program_DQS_calibration(unsigned long *dimm_populated, #endif } -static u32 short_mem_test(void) +static int short_mem_test(void) { u32 *membase; u32 bxcr_num; @@ -2356,42 +2432,41 @@ static u32 short_mem_test(void) 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA}, {0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55, 0x55AA55AA, 0x55AA55AA, 0xAA55AA55, 0xAA55AA55} }; + int l; for (bxcr_num = 0; bxcr_num < MAXBXCF; bxcr_num++) { mfsdram(SDRAM_MB0CF + (bxcr_num << 2), bxcf); /* Banks enabled */ if ((bxcf & SDRAM_BXCF_M_BE_MASK) == SDRAM_BXCF_M_BE_ENABLE) { - /* Bank is enabled */ - membase = (u32 *)(SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+bxcr_num))); /*------------------------------------------------------------------ * Run the short memory test. *-----------------------------------------------------------------*/ + membase = (u32 *)(SDRAM_RXBAS_SDBA_DECODE(mfdcr_any(SDRAM_R0BAS+bxcr_num))); + for (i = 0; i < NUMMEMTESTS; i++) { for (j = 0; j < NUMMEMWORDS; j++) { membase[j] = test[i][j]; ppcDcbf((u32)&(membase[j])); } sync(); - for (j = 0; j < NUMMEMWORDS; j++) { - if (membase[j] != test[i][j]) { + for (l=0; l<NUMLOOPS; l++) { + for (j = 0; j < NUMMEMWORDS; j++) { + if (membase[j] != test[i][j]) { + ppcDcbf((u32)&(membase[j])); + return 0; + } ppcDcbf((u32)&(membase[j])); - break; } - ppcDcbf((u32)&(membase[j])); + sync(); } - sync(); - if (j < NUMMEMWORDS) - break; } - if (i < NUMMEMTESTS) - break; } /* if bank enabled */ } /* for bxcf_num */ - return bxcr_num; + return 1; } #ifndef HARD_CODED_DQS @@ -2400,12 +2475,10 @@ static u32 short_mem_test(void) *-----------------------------------------------------------------------------*/ static void DQS_calibration_process(void) { - unsigned long ecc_temp; unsigned long rfdc_reg; unsigned long rffd; unsigned long rqdc_reg; unsigned long rqfd; - unsigned long bxcr_num; unsigned long val; long rqfd_average; long rffd_average; @@ -2425,6 +2498,10 @@ static void DQS_calibration_process(void) long max_end; unsigned char fail_found; unsigned char pass_found; + u32 rqfd_start; + char str[] = "Auto calibration -"; + char slash[] = "\\|/-\\|/-"; + int loopi = 0; /*------------------------------------------------------------------ * Test to determine the best read clock delay tuning bits. @@ -2449,11 +2526,16 @@ static void DQS_calibration_process(void) * we can clock the DDR interface at is 200 MHz (2x 100 MHz PLB speed), * from experimentation it is safe to say you will always have a failure. *-----------------------------------------------------------------*/ - mfsdram(SDRAM_MCOPT1, ecc_temp); - ecc_temp &= SDRAM_MCOPT1_MCHK_MASK; - mfsdram(SDRAM_MCOPT1, val); - mtsdram(SDRAM_MCOPT1, (val & ~SDRAM_MCOPT1_MCHK_MASK) | - SDRAM_MCOPT1_MCHK_NON); + + /* first fix RQDC[RQFD] to an average of 80 degre phase shift to find RFDC[RFFD] */ + rqfd_start = 64; /* test-only: don't know if this is the _best_ start value */ + + puts(str); + +calibration_loop: + mfsdram(SDRAM_RQDC, rqdc_reg); + mtsdram(SDRAM_RQDC, (rqdc_reg & ~SDRAM_RQDC_RQFD_MASK) | + SDRAM_RQDC_RQFD_ENCODE(rqfd_start)); max_start = 0; min_end = 0; @@ -2477,9 +2559,6 @@ static void DQS_calibration_process(void) fail_found = FALSE; pass_found = FALSE; - /* first fix RQDC[RQFD] to an average of 80 degre phase shift to find RFDC[RFFD] */ - /* rqdc_reg = mfsdram(SDRAM_RQDC) & ~(SDRAM_RQDC_RQFD_MASK); */ - /* * get the delay line calibration register value */ @@ -2495,13 +2574,10 @@ static void DQS_calibration_process(void) *-----------------------------------------------------------------*/ mtsdram(SDRAM_RFDC, rfdc_reg | SDRAM_RFDC_RFFD_ENCODE(rffd)); - /* do the small memory test */ - bxcr_num = short_mem_test(); - /*------------------------------------------------------------------ * See if the rffd value passed. *-----------------------------------------------------------------*/ - if (bxcr_num == MAXBXCF) { + if (short_mem_test()) { if (fail_found == TRUE) { pass_found = TRUE; if (current_pass_length == 0) @@ -2531,7 +2607,6 @@ static void DQS_calibration_process(void) } } /* for rffd */ - /*------------------------------------------------------------------ * Set the average RFFD value *-----------------------------------------------------------------*/ @@ -2564,13 +2639,10 @@ static void DQS_calibration_process(void) *-----------------------------------------------------------------*/ mtsdram(SDRAM_RQDC, rqdc_reg | SDRAM_RQDC_RQFD_ENCODE(rqfd)); - /* do the small memory test */ - bxcr_num = short_mem_test(); - /*------------------------------------------------------------------ * See if the rffd value passed. *-----------------------------------------------------------------*/ - if (bxcr_num == MAXBXCF) { + if (short_mem_test()) { if (fail_found == TRUE) { pass_found = TRUE; if (current_pass_length == 0) @@ -2598,17 +2670,28 @@ static void DQS_calibration_process(void) } } + rqfd_average = ((max_start + max_end) >> 1); + /*------------------------------------------------------------------ * Make sure we found the valid read passing window. Halt if not *-----------------------------------------------------------------*/ if (window_found == FALSE) { - printf("ERROR: Cannot determine a common read delay for the " + if (rqfd_start < SDRAM_RQDC_RQFD_MAX) { + putc('\b'); + putc(slash[loopi++ % 8]); + + /* try again from with a different RQFD start value */ + rqfd_start++; + goto calibration_loop; + } + + printf("\nERROR: Cannot determine a common read delay for the " "DIMM(s) installed.\n"); debug("%s[%d] ERROR : \n", __FUNCTION__,__LINE__); hang(); } - rqfd_average = ((max_start + max_end) >> 1); + blank_string(strlen(str)); if (rqfd_average < 0) rqfd_average = 0; @@ -2616,12 +2699,6 @@ static void DQS_calibration_process(void) if (rqfd_average > SDRAM_RQDC_RQFD_MAX) rqfd_average = SDRAM_RQDC_RQFD_MAX; - /*------------------------------------------------------------------ - * Restore the ECC variable to what it originally was - *-----------------------------------------------------------------*/ - mfsdram(SDRAM_MCOPT1, val); - mtsdram(SDRAM_MCOPT1, (val & ~SDRAM_MCOPT1_MCHK_MASK) | ecc_temp); - mtsdram(SDRAM_RQDC, (rqdc_reg & ~SDRAM_RQDC_RQFD_MASK) | SDRAM_RQDC_RQFD_ENCODE(rqfd_average)); diff --git a/cpu/ppc4xx/4xx_enet.c b/cpu/ppc4xx/4xx_enet.c index 4f55583..1200d02 100644 --- a/cpu/ppc4xx/4xx_enet.c +++ b/cpu/ppc4xx/4xx_enet.c @@ -339,29 +339,41 @@ int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis) int ppc_4xx_eth_setup_bridge(int devnum, bd_t * bis) { unsigned long zmiifer=0x0; + unsigned long pfc1; - /* - * Right now only 2*RGMII is supported. Please extend when needed. - * sr - 2006-08-29 - */ - switch (1) { - case 0: + mfsdr(sdr_pfc1, pfc1); + pfc1 &= SDR0_PFC1_SELECT_MASK; + + switch (pfc1) { + case SDR0_PFC1_SELECT_CONFIG_2: /* 1 x GMII port */ out32 (ZMII_FER, 0x00); out32 (RGMII_FER, 0x00000037); bis->bi_phymode[0] = BI_PHYMODE_GMII; bis->bi_phymode[1] = BI_PHYMODE_NONE; break; - case 1: + case SDR0_PFC1_SELECT_CONFIG_4: /* 2 x RGMII ports */ out32 (ZMII_FER, 0x00); out32 (RGMII_FER, 0x00000055); bis->bi_phymode[0] = BI_PHYMODE_RGMII; bis->bi_phymode[1] = BI_PHYMODE_RGMII; break; - case 2: + case SDR0_PFC1_SELECT_CONFIG_6: /* 2 x SMII ports */ - + out32 (ZMII_FER, + ((ZMII_FER_SMII) << ZMII_FER_V(0)) | + ((ZMII_FER_SMII) << ZMII_FER_V(1))); + out32 (RGMII_FER, 0x00000000); + bis->bi_phymode[0] = BI_PHYMODE_SMII; + bis->bi_phymode[1] = BI_PHYMODE_SMII; + break; + case SDR0_PFC1_SELECT_CONFIG_1_2: + /* only 1 x MII supported */ + out32 (ZMII_FER, (ZMII_FER_MII) << ZMII_FER_V(0)); + out32 (RGMII_FER, 0x00000000); + bis->bi_phymode[0] = BI_PHYMODE_MII; + bis->bi_phymode[1] = BI_PHYMODE_NONE; break; default: break; @@ -1333,6 +1345,9 @@ int enetInt (struct eth_device *dev) } } mtdcr (uicsr, MAL_UIC_DEF|EMAC_UIC_DEF|EMAC_UIC_DEF1); /* Clear */ +#if defined(CONFIG_405EZ) + mtsdr (sdricintstat, SDR_ICRX_STAT | SDR_ICTX0_STAT | SDR_ICTX1_STAT); +#endif /* defined(CONFIG_405EZ) */ } while (serviced); diff --git a/cpu/ppc4xx/Makefile b/cpu/ppc4xx/Makefile index 96f0f62..4068b53 100644 --- a/cpu/ppc4xx/Makefile +++ b/cpu/ppc4xx/Makefile @@ -29,7 +29,7 @@ START = start.o resetvec.o kgdb.o SOBJS = dcr.o COBJS = 405gp_pci.o 4xx_enet.o \ bedbug_405.o commproc.o \ - cpu.o cpu_init.o i2c.o interrupts.o \ + cpu.o cpu_init.o gpio.o i2c.o interrupts.o \ miiphy.o ndfc.o sdram.o serial.o \ 40x_spd_sdram.o 44x_spd_ddr.o 44x_spd_ddr2.o speed.o \ tlb.o traps.o usb_ohci.o usbdev.o \ diff --git a/cpu/ppc4xx/cpu.c b/cpu/ppc4xx/cpu.c index b02f6f4..8e6bc84 100644 --- a/cpu/ppc4xx/cpu.c +++ b/cpu/ppc4xx/cpu.c @@ -47,6 +47,9 @@ void board_reset(void); #if defined(CONFIG_440) #define FREQ_EBC (sys_info.freqEPB) +#elif defined(CONFIG_405EZ) +#define FREQ_EBC ((CONFIG_SYS_CLK_FREQ * sys_info.pllFbkDiv) / \ + sys_info.pllExtBusDiv) #else #define FREQ_EBC (sys_info.freqPLB / sys_info.pllExtBusDiv) #endif @@ -122,6 +125,7 @@ int i2c_bootrom_enabled(void) return (val & SDR0_SDCS_SDD); #endif } +#endif #if defined(CONFIG_440GX) #define SDR0_PINSTP_SHIFT 29 @@ -175,16 +179,37 @@ static char *bootstrap_str[] = { }; #endif +#if defined(CONFIG_405EZ) +#define SDR0_PINSTP_SHIFT 28 +static char *bootstrap_str[] = { + "EBC (8 bits)", + "SPI (fast)", + "NAND (512 page, 4 addr cycle)", + "I2C (Addr 0x50)", + "EBC (32 bits)", + "I2C (Addr 0x50)", + "NAND (2K page, 5 addr cycle)", + "I2C (Addr 0x50)", + "EBC (16 bits)", + "Reserved", + "NAND (2K page, 4 addr cycle)", + "I2C (Addr 0x50)", + "NAND (512 page, 3 addr cycle)", + "I2C (Addr 0x50)", + "SPI (slow)", + "I2C (Addr 0x50)", +}; +#endif + #if defined(SDR0_PINSTP_SHIFT) static int bootstrap_option(void) { unsigned long val; - mfsdr(sdr_pinstp, val); - return ((val & 0xe0000000) >> SDR0_PINSTP_SHIFT); + mfsdr(SDR_PINSTP, val); + return ((val & 0xf0000000) >> SDR0_PINSTP_SHIFT); } #endif /* SDR0_PINSTP_SHIFT */ -#endif #if defined(CONFIG_440) @@ -209,7 +234,8 @@ int checkcpu (void) puts("AMCC PowerPC 4"); -#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP) +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) puts("05"); #endif #if defined(CONFIG_440) @@ -257,6 +283,10 @@ int checkcpu (void) puts("EP Rev. B"); break; + case PVR_405EZ_RA: + puts("EZ Rev. A"); + break; + #if defined(CONFIG_440) case PVR_440GP_RB: puts("GP Rev. B"); @@ -386,20 +416,20 @@ int checkcpu (void) } printf (" at %s MHz (PLB=%lu, OPB=%lu, EBC=%lu MHz)\n", strmhz(buf, clock), - sys_info.freqPLB / 1000000, - sys_info.freqPLB / sys_info.pllOpbDiv / 1000000, - FREQ_EBC / 1000000); + sys_info.freqPLB / 1000000, + get_OPB_freq() / 1000000, + FREQ_EBC / 1000000); if (addstr[0] != 0) printf(" %s\n", addstr); #if defined(I2C_BOOTROM) printf (" I2C boot EEPROM %sabled\n", i2c_bootrom_enabled() ? "en" : "dis"); +#endif /* I2C_BOOTROM */ #if defined(SDR0_PINSTP_SHIFT) printf (" Bootstrap Option %c - ", (char)bootstrap_option() + 'A'); printf ("Boot ROM Location %s\n", bootstrap_str[bootstrap_option()]); #endif /* SDR0_PINSTP_SHIFT */ -#endif /* I2C_BOOTROM */ #if defined(CONFIG_PCI) printf (" Internal PCI arbiter %sabled", pci_arbiter_enabled() ? "en" : "dis"); @@ -418,7 +448,7 @@ int checkcpu (void) putc('\n'); #endif -#if defined(CONFIG_405EP) +#if defined(CONFIG_405EP) || defined(CONFIG_405EZ) printf (" 16 kB I-Cache 16 kB D-Cache"); #elif defined(CONFIG_440) printf (" 32 kB I-Cache 32 kB D-Cache"); diff --git a/cpu/ppc4xx/cpu_init.c b/cpu/ppc4xx/cpu_init.c index 82ae443..66e8637 100644 --- a/cpu/ppc4xx/cpu_init.c +++ b/cpu/ppc4xx/cpu_init.c @@ -25,6 +25,7 @@ #include <watchdog.h> #include <ppc4xx_enet.h> #include <asm/processor.h> +#include <asm/gpio.h> #include <ppc4xx.h> #if defined(CONFIG_405GP) || defined(CONFIG_405EP) @@ -98,118 +99,6 @@ DECLARE_GLOBAL_DATA_PTR; # endif #endif /* CFG_INIT_DCACHE_CS */ -#if defined(CFG_440_GPIO_TABLE) -gpio_param_s gpio_tab[GPIO_GROUP_MAX][GPIO_MAX] = CFG_440_GPIO_TABLE; - -void set_chip_gpio_configuration(gpio_param_s (*gpio_tab)[GPIO_GROUP_MAX][GPIO_MAX]) -{ - unsigned char i=0, j=0, reg_offset = 0, gpio_core; - unsigned long gpio_reg, gpio_core_add; - - for (gpio_core=0; gpio_core<GPIO_GROUP_MAX; gpio_core++) { - j = 0; - reg_offset = 0; - /* GPIO config of the GPIOs 0 to 31 */ - for (i=0; i<GPIO_MAX; i++, j++) { - if (i == GPIO_MAX/2) { - reg_offset = 4; - j = i-16; - } - - gpio_core_add = (*gpio_tab)[gpio_core][i].add; - - if (((*gpio_tab)[gpio_core][i].in_out == GPIO_IN) || - ((*gpio_tab)[gpio_core][i].in_out == GPIO_BI)) { - - switch ((*gpio_tab)[gpio_core][i].alt_nb) { - case GPIO_SEL: - break; - - case GPIO_ALT1: - gpio_reg = in32(GPIO_IS1(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2)); - out32(GPIO_IS1(gpio_core_add+reg_offset), gpio_reg); - break; - - case GPIO_ALT2: - gpio_reg = in32(GPIO_IS2(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2)); - out32(GPIO_IS2(gpio_core_add+reg_offset), gpio_reg); - break; - - case GPIO_ALT3: - gpio_reg = in32(GPIO_IS3(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_IN_SEL >> (j*2)); - out32(GPIO_IS3(gpio_core_add+reg_offset), gpio_reg); - break; - } - } - - if (((*gpio_tab)[gpio_core][i].in_out == GPIO_OUT) || - ((*gpio_tab)[gpio_core][i].in_out == GPIO_BI)) { - - switch ((*gpio_tab)[gpio_core][i].alt_nb) { - case GPIO_SEL: - if (gpio_core == GPIO0) { - gpio_reg = in32(GPIO0_TCR) | (0x80000000 >> (j)); - out32(GPIO0_TCR, gpio_reg); - } - - if (gpio_core == GPIO1) { - gpio_reg = in32(GPIO1_TCR) | (0x80000000 >> (j)); - out32(GPIO1_TCR, gpio_reg); - } - - gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg); - gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg); - break; - - case GPIO_ALT1: - gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_ALT1_SEL >> (j*2)); - out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg); - gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_ALT1_SEL >> (j*2)); - out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg); - break; - - case GPIO_ALT2: - gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_ALT2_SEL >> (j*2)); - out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg); - gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_ALT2_SEL >> (j*2)); - out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg); - break; - - case GPIO_ALT3: - gpio_reg = in32(GPIO_OS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_ALT3_SEL >> (j*2)); - out32(GPIO_OS(gpio_core_add+reg_offset), gpio_reg); - gpio_reg = in32(GPIO_TS(gpio_core_add+reg_offset)) - & ~(GPIO_MASK >> (j*2)); - gpio_reg = gpio_reg | (GPIO_ALT3_SEL >> (j*2)); - out32(GPIO_TS(gpio_core_add+reg_offset), gpio_reg); - break; - } - } - } - } -} -#endif /* CFG_440_GPIO_TABLE */ - /* * Breath some life into the CPU... * @@ -248,7 +137,7 @@ cpu_init_f (void) #endif /* CONFIG_405EP */ #if defined(CFG_440_GPIO_TABLE) - set_chip_gpio_configuration(&gpio_tab); + gpio_set_chip_configuration(); #endif /* CFG_440_GPIO_TABLE */ /* @@ -256,7 +145,8 @@ cpu_init_f (void) */ #if (defined(CFG_EBC_PB0AP) && defined(CFG_EBC_PB0CR)) #if (defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ - defined(CONFIG_405EP) || defined(CONFIG_405)) + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405)) /* * Move the next instructions into icache, since these modify the flash * we are running from! diff --git a/cpu/ppc4xx/gpio.c b/cpu/ppc4xx/gpio.c new file mode 100644 index 0000000..dd84e58 --- /dev/null +++ b/cpu/ppc4xx/gpio.c @@ -0,0 +1,214 @@ +/* + * (C) Copyright 2007 + * Stefan Roese, DENX Software Engineering, sr@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/processor.h> +#include <asm/io.h> +#include <asm/gpio.h> + +#if defined(CFG_440_GPIO_TABLE) +gpio_param_s gpio_tab[GPIO_GROUP_MAX][GPIO_MAX] = CFG_440_GPIO_TABLE; +#endif + +#if defined(GPIO0_OSRL) +/* Only some 4xx variants support alternate funtions on the GPIO's */ +void gpio_config(int pin, int in_out, int gpio_alt, int out_val) +{ + u32 mask; + u32 mask2; + u32 val; + u32 offs = 0; + u32 offs2 = 0; + int pin2 = pin << 1; + + if (pin >= GPIO_MAX) { + offs = 0x100; + pin -= GPIO_MAX; + } + + if (pin >= GPIO_MAX/2) { + offs2 = 0x100; + pin2 = (pin - GPIO_MAX/2) << 1; + } + + mask = 0x80000000 >> pin; + mask2 = 0xc0000000 >> (pin2 << 1); + + /* first set TCR to 0 */ + out32(GPIO0_TCR + offs, in32(GPIO0_TCR + offs) & ~mask); + + if (in_out == GPIO_OUT) { + val = in32(GPIO0_OSRL + offs + offs2) & ~mask2; + switch (gpio_alt) { + case GPIO_ALT1: + val |= GPIO_ALT1_SEL >> pin2; + break; + case GPIO_ALT2: + val |= GPIO_ALT2_SEL >> pin2; + break; + case GPIO_ALT3: + val |= GPIO_ALT3_SEL >> pin2; + break; + } + out32(GPIO0_OSRL + offs + offs2, val); + + /* setup requested output value */ + if (out_val == GPIO_OUT_0) + out32(GPIO0_OR + offs, in32(GPIO0_OR + offs) & ~mask); + else if (out_val == GPIO_OUT_1) + out32(GPIO0_OR + offs, in32(GPIO0_OR + offs) | mask); + + /* now configure TCR to drive output if selected */ + out32(GPIO0_TCR + offs, in32(GPIO0_TCR + offs) | mask); + } else { + val = in32(GPIO0_ISR1L + offs + offs2) & ~mask2; + val |= GPIO_IN_SEL >> pin2; + out32(GPIO0_ISR1L + offs + offs2, val); + } +} +#endif /* GPIO_OSRL */ + +void gpio_write_bit(int pin, int val) +{ + u32 offs = 0; + + if (pin >= GPIO_MAX) { + offs = 0x100; + pin -= GPIO_MAX; + } + + if (val) + out32(GPIO0_OR + offs, in32(GPIO0_OR + offs) | GPIO_VAL(pin)); + else + out32(GPIO0_OR + offs, in32(GPIO0_OR + offs) & ~GPIO_VAL(pin)); +} + +#if defined(CFG_440_GPIO_TABLE) +void gpio_set_chip_configuration(void) +{ + unsigned char i=0, j=0, offs=0, gpio_core; + unsigned long reg, core_add; + + for (gpio_core=0; gpio_core<GPIO_GROUP_MAX; gpio_core++) { + j = 0; + offs = 0; + /* GPIO config of the GPIOs 0 to 31 */ + for (i=0; i<GPIO_MAX; i++, j++) { + if (i == GPIO_MAX/2) { + offs = 4; + j = i-16; + } + + core_add = gpio_tab[gpio_core][i].add; + + if ((gpio_tab[gpio_core][i].in_out == GPIO_IN) || + (gpio_tab[gpio_core][i].in_out == GPIO_BI)) { + + switch (gpio_tab[gpio_core][i].alt_nb) { + case GPIO_SEL: + break; + + case GPIO_ALT1: + reg = in32(GPIO_IS1(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_IN_SEL >> (j*2)); + out32(GPIO_IS1(core_add+offs), reg); + break; + + case GPIO_ALT2: + reg = in32(GPIO_IS2(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_IN_SEL >> (j*2)); + out32(GPIO_IS2(core_add+offs), reg); + break; + + case GPIO_ALT3: + reg = in32(GPIO_IS3(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_IN_SEL >> (j*2)); + out32(GPIO_IS3(core_add+offs), reg); + break; + } + } + + if ((gpio_tab[gpio_core][i].in_out == GPIO_OUT) || + (gpio_tab[gpio_core][i].in_out == GPIO_BI)) { + + switch (gpio_tab[gpio_core][i].alt_nb) { + case GPIO_SEL: + if (gpio_core == GPIO0) { + reg = in32(GPIO0_TCR) | (0x80000000 >> (j)); + out32(GPIO0_TCR, reg); + } + + if (gpio_core == GPIO1) { + reg = in32(GPIO1_TCR) | (0x80000000 >> (j)); + out32(GPIO1_TCR, reg); + } + + reg = in32(GPIO_OS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + out32(GPIO_OS(core_add+offs), reg); + reg = in32(GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + out32(GPIO_TS(core_add+offs), reg); + break; + + case GPIO_ALT1: + reg = in32(GPIO_OS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_ALT1_SEL >> (j*2)); + out32(GPIO_OS(core_add+offs), reg); + reg = in32(GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_ALT1_SEL >> (j*2)); + out32(GPIO_TS(core_add+offs), reg); + break; + + case GPIO_ALT2: + reg = in32(GPIO_OS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_ALT2_SEL >> (j*2)); + out32(GPIO_OS(core_add+offs), reg); + reg = in32(GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_ALT2_SEL >> (j*2)); + out32(GPIO_TS(core_add+offs), reg); + break; + + case GPIO_ALT3: + reg = in32(GPIO_OS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_ALT3_SEL >> (j*2)); + out32(GPIO_OS(core_add+offs), reg); + reg = in32(GPIO_TS(core_add+offs)) + & ~(GPIO_MASK >> (j*2)); + reg = reg | (GPIO_ALT3_SEL >> (j*2)); + out32(GPIO_TS(core_add+offs), reg); + break; + } + } + } + } +} +#endif /* CFG_440_GPIO_TABLE */ diff --git a/cpu/ppc4xx/i2c.c b/cpu/ppc4xx/i2c.c index 0b056a1..47c264e 100644 --- a/cpu/ppc4xx/i2c.c +++ b/cpu/ppc4xx/i2c.c @@ -91,7 +91,6 @@ static void _i2c_bus_reset(void) void i2c_init(int speed, int slaveadd) { - sys_info_t sysInfo; unsigned long freqOPB; int val, divisor; int bus; @@ -124,8 +123,7 @@ void i2c_init(int speed, int slaveadd) /* Clock divide Register */ /* get OPB frequency */ - get_sys_info(&sysInfo); - freqOPB = sysInfo.freqPLB / sysInfo.pllOpbDiv; + freqOPB = get_OPB_freq(); /* set divisor according to freqOPB */ divisor = (freqOPB - 1) / 10000000; if (divisor == 0) @@ -460,6 +458,7 @@ int i2c_set_bus_num(unsigned int bus) return 0; } +#endif /* CONFIG_I2C_MULTI_BUS */ /* TODO: add 100/400k switching */ unsigned int i2c_get_bus_speed(void) @@ -474,5 +473,4 @@ int i2c_set_bus_speed(unsigned int speed) return 0; } -#endif /* CONFIG_I2C_MULTI_BUS */ #endif /* CONFIG_HARD_I2C */ diff --git a/cpu/ppc4xx/serial.c b/cpu/ppc4xx/serial.c index fab0d95..e62dd9d 100644 --- a/cpu/ppc4xx/serial.c +++ b/cpu/ppc4xx/serial.c @@ -264,7 +264,8 @@ int serial_tstc () #endif /* CONFIG_IOP480 */ /*****************************************************************************/ -#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405EP) || \ +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ defined(CONFIG_440) #if defined(CONFIG_440) @@ -309,7 +310,7 @@ int serial_tstc () #define MFREG(a, d) mfsdr(a, d) #define MTREG(a, d) mtsdr(a, d) #endif /* #if defined(CONFIG_440GP) */ -#elif defined(CONFIG_405EP) +#elif defined(CONFIG_405EP) || defined(CONFIG_405EZ) #define UART0_BASE 0xef600300 #define UART1_BASE 0xef600400 #define UCR0_MASK 0x0000007f @@ -392,47 +393,95 @@ volatile static serial_buffer_t buf_info; #if defined(CONFIG_440) && !defined(CFG_EXT_SERIAL_CLOCK) static void serial_divs (int baudrate, unsigned long *pudiv, - unsigned short *pbdiv ) + unsigned short *pbdiv) { - sys_info_t sysinfo; + sys_info_t sysinfo; unsigned long div; /* total divisor udiv * bdiv */ unsigned long umin; /* minimum udiv */ - unsigned short diff; /* smallest diff */ - unsigned long udiv; /* best udiv */ - - unsigned short idiff; /* current diff */ - unsigned short ibdiv; /* current bdiv */ + unsigned short diff; /* smallest diff */ + unsigned long udiv; /* best udiv */ + unsigned short idiff; /* current diff */ + unsigned short ibdiv; /* current bdiv */ unsigned long i; - unsigned long est; /* current estimate */ + unsigned long est; /* current estimate */ - get_sys_info( &sysinfo ); + get_sys_info(&sysinfo); - udiv = 32; /* Assume lowest possible serial clk */ - div = sysinfo.freqPLB/(16*baudrate); /* total divisor */ - umin = sysinfo.pllOpbDiv<<1; /* 2 x OPB divisor */ - diff = 32; /* highest possible */ + udiv = 32; /* Assume lowest possible serial clk */ + div = sysinfo.freqPLB / (16 * baudrate); /* total divisor */ + umin = sysinfo.pllOpbDiv << 1; /* 2 x OPB divisor */ + diff = 32; /* highest possible */ /* i is the test udiv value -- start with the largest * possible (32) to minimize serial clock and constrain * search to umin. */ - for( i = 32; i > umin; i-- ){ - ibdiv = div/i; + for (i = 32; i > umin; i--) { + ibdiv = div / i; est = i * ibdiv; idiff = (est > div) ? (est-div) : (div-est); - if( idiff == 0 ){ + if (idiff == 0) { udiv = i; break; /* can't do better */ - } - else if( idiff < diff ){ + } else if (idiff < diff) { udiv = i; /* best so far */ diff = idiff; /* update lowest diff*/ } } *pudiv = udiv; - *pbdiv = div/udiv; + *pbdiv = div / udiv; +} + +#elif defined(CONFIG_405EZ) + +static void serial_divs (int baudrate, unsigned long *pudiv, + unsigned short *pbdiv) +{ + sys_info_t sysinfo; + unsigned long div; /* total divisor udiv * bdiv */ + unsigned long umin; /* minimum udiv */ + unsigned short diff; /* smallest diff */ + unsigned long udiv; /* best udiv */ + unsigned short idiff; /* current diff */ + unsigned short ibdiv; /* current bdiv */ + unsigned long i; + unsigned long est; /* current estimate */ + unsigned long plloutb; + u32 reg; + + get_sys_info(&sysinfo); + plloutb = ((CONFIG_SYS_CLK_FREQ * sysinfo.pllFwdDiv * sysinfo.pllFbkDiv) + / sysinfo.pllFwdDivB); + udiv = 256; /* Assume lowest possible serial clk */ + div = plloutb / (16 * baudrate); /* total divisor */ + umin = (plloutb / get_OPB_freq()) << 1; /* 2 x OPB divisor */ + diff = 256; /* highest possible */ + + /* i is the test udiv value -- start with the largest + * possible (256) to minimize serial clock and constrain + * search to umin. + */ + for (i = 256; i > umin; i--) { + ibdiv = div / i; + est = i * ibdiv; + idiff = (est > div) ? (est-div) : (div-est); + if (idiff == 0) { + udiv = i; + break; /* can't do better */ + } else if (idiff < diff) { + udiv = i; /* best so far */ + diff = idiff; /* update lowest diff*/ + } + } + + *pudiv = udiv; + mfcpr(cprperd0, reg); + reg &= ~0x0000ffff; + reg |= ((udiv - 0) << 8) | (udiv - 0); + mtcpr(cprperd0, reg); + *pbdiv = div / udiv; } #endif /* defined(CONFIG_440) && !defined(CFG_EXT_SERIAL_CLK) */ @@ -518,6 +567,10 @@ int serial_init (void) unsigned short bdiv; volatile char val; +#if defined(CONFIG_405EZ) + serial_divs(gd->baudrate, &udiv, &bdiv); + clk = tmp = reg = 0; +#else #ifdef CONFIG_405EP reg = mfdcr(cpc0_ucr) & ~(UCR0_MASK | UCR1_MASK); clk = gd->cpu_clk; @@ -548,9 +601,9 @@ int serial_init (void) reg |= (udiv - 1) << CR0_UDIV_POS; /* set the UART divisor */ mtdcr (cntrl0, reg); #endif /* CONFIG_405EP */ - tmp = gd->baudrate * udiv * 16; bdiv = (clk + tmp / 2) / tmp; +#endif /* CONFIG_405EZ */ out8(UART_BASE + UART_LCR, 0x80); /* set DLAB bit */ out8(UART_BASE + UART_DLL, bdiv); /* set baudrate divisor */ diff --git a/cpu/ppc4xx/speed.c b/cpu/ppc4xx/speed.c index 06220c3..028b11a 100644 --- a/cpu/ppc4xx/speed.c +++ b/cpu/ppc4xx/speed.c @@ -767,11 +767,119 @@ ulong get_PCI_freq (void) return val; } +#elif defined(CONFIG_405EZ) +void get_sys_info (PPC405_SYS_INFO * sysInfo) +{ + unsigned long cpr_plld; + unsigned long cpr_primad; + unsigned long sysClkPeriodPs = ONE_BILLION / (CONFIG_SYS_CLK_FREQ/1000); + unsigned long primad_cpudv; + unsigned long m; + + /* + * Read PLL Mode registers + */ + mfcpr(cprplld, cpr_plld); + + /* + * Determine forward divider A + */ + sysInfo->pllFwdDiv = ((cpr_plld & PLLD_FWDVA_MASK) >> 16); + + /* + * Determine forward divider B (should be equal to A) + */ + sysInfo->pllFwdDivB = ((cpr_plld & PLLD_FWDVB_MASK) >> 8); + if (sysInfo->pllFwdDivB == 0) { + sysInfo->pllFwdDivB = 8; + } + + /* + * Determine FBK_DIV. + */ + sysInfo->pllFbkDiv = ((cpr_plld & PLLD_FBDV_MASK) >> 24); + if (sysInfo->pllFbkDiv == 0) { + sysInfo->pllFbkDiv = 256; + } + + /* + * Read CPR_PRIMAD register + */ + mfcpr(cprprimad, cpr_primad); + /* + * Determine PLB_DIV. + */ + sysInfo->pllPlbDiv = ((cpr_primad & PRIMAD_PLBDV_MASK) >> 16); + if (sysInfo->pllPlbDiv == 0) { + sysInfo->pllPlbDiv = 16; + } + + /* + * Determine EXTBUS_DIV. + */ + sysInfo->pllExtBusDiv = (cpr_primad & PRIMAD_EBCDV_MASK); + if (sysInfo->pllExtBusDiv == 0) { + sysInfo->pllExtBusDiv = 16; + } + + /* + * Determine OPB_DIV. + */ + sysInfo->pllOpbDiv = ((cpr_primad & PRIMAD_OPBDV_MASK) >> 8); + if (sysInfo->pllOpbDiv == 0) { + sysInfo->pllOpbDiv = 16; + } + + /* + * Determine the M factor + */ + m = sysInfo->pllFbkDiv * sysInfo->pllFwdDivB; + + /* + * Determine VCO clock frequency + */ + sysInfo->freqVCOHz = (1000000000000LL * (unsigned long long)m) / + (unsigned long long)sysClkPeriodPs; + + /* + * Determine CPU clock frequency + */ + primad_cpudv = ((cpr_primad & PRIMAD_CPUDV_MASK) >> 24); + if (primad_cpudv == 0) { + primad_cpudv = 16; + } + + sysInfo->freqProcessor = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) / primad_cpudv; + + /* + * Determine PLB clock frequency + */ + sysInfo->freqPLB = (CONFIG_SYS_CLK_FREQ * sysInfo->pllFbkDiv) / sysInfo->pllPlbDiv; +} + +/******************************************** + * get_OPB_freq + * return OPB bus freq in Hz + *********************************************/ +ulong get_OPB_freq (void) +{ + ulong val = 0; + + PPC405_SYS_INFO sys_info; + + get_sys_info (&sys_info); + val = (CONFIG_SYS_CLK_FREQ * sys_info.pllFbkDiv) / sys_info.pllOpbDiv; + + return val; +} + #endif int get_clocks (void) { -#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_440) || defined(CONFIG_405) || defined(CONFIG_405EP) +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_440) || defined(CONFIG_405) sys_info_t sys_info; get_sys_info (&sys_info); @@ -796,7 +904,9 @@ ulong get_bus_freq (ulong dummy) { ulong val; -#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405) || defined(CONFIG_440) || defined(CONFIG_405EP) +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_440) || defined(CONFIG_405) sys_info_t sys_info; get_sys_info (&sys_info); diff --git a/cpu/ppc4xx/start.S b/cpu/ppc4xx/start.S index 24b30df..a96083c 100644 --- a/cpu/ppc4xx/start.S +++ b/cpu/ppc4xx/start.S @@ -2,6 +2,7 @@ * Copyright (C) 1998 Dan Malek <dmalek@jlc.net> * Copyright (C) 1999 Magnus Damm <kieraypc01.p.y.kie.era.ericsson.se> * Copyright (C) 2000,2001,2002 Wolfgang Denk <wd@denx.de> + * Copyright (C) 2007 Stefan Roese <sr@denx.de>, DENX Software Engineering * * See file CREDITS for list of people who contributed to this * project. @@ -699,7 +700,9 @@ _start: #endif /* CONFIG_IOP480 */ /*****************************************************************************/ -#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || defined(CONFIG_405) || defined(CONFIG_405EP) +#if defined(CONFIG_405GP) || defined(CONFIG_405CR) || \ + defined(CONFIG_405EP) || defined(CONFIG_405EZ) || \ + defined(CONFIG_405) /*----------------------------------------------------------------------- */ /* Clear and set up some registers. */ /*----------------------------------------------------------------------- */ @@ -727,13 +730,13 @@ _start: /*----------------------------------------------------------------------- */ /* Enable two 128MB cachable regions. */ /*----------------------------------------------------------------------- */ - addis r4,r0,0x8000 - addi r4,r4,0x0001 + lis r4,0x8000 + ori r4,r4,0x0001 mticcr r4 /* instruction cache */ isync - addis r4,r0,0x0000 - addi r4,r4,0x0000 + lis r4,0x0000 + ori r4,r4,0x0000 mtdccr r4 /* data cache */ #if !(defined(CFG_EBC_PB0AP) && defined(CFG_EBC_PB0CR)) @@ -755,6 +758,35 @@ _start: #endif /* CONFIG_405EP */ #if defined(CFG_OCM_DATA_ADDR) && defined(CFG_OCM_DATA_SIZE) +#if defined(CONFIG_405EZ) + /******************************************************************** + * Setup OCM - On Chip Memory - PPC405EZ uses OCM Controller V2 + *******************************************************************/ + /* + * We can map the OCM on the PLB3, so map it at + * CFG_OCM_DATA_ADDR + 0x8000 + */ + lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */ + ori r3,r3,CFG_OCM_DATA_ADDR@l + ori r3,r3,0x8270 /* 32K Offset, 16K for Bank 1, R/W/Enable */ + mtdcr ocmplb3cr1,r3 /* Set PLB Access */ + ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */ + mtdcr ocmplb3cr2,r3 /* Set PLB Access */ + isync + + lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */ + ori r3,r3,CFG_OCM_DATA_ADDR@l + ori r3,r3,0x0270 /* 16K for Bank 1, R/W/Enable */ + mtdcr ocmdscr1, r3 /* Set Data Side */ + mtdcr ocmiscr1, r3 /* Set Instruction Side */ + ori r3,r3,0x4000 /* Add 0x4000 for bank 2 */ + mtdcr ocmdscr2, r3 /* Set Data Side */ + mtdcr ocmiscr2, r3 /* Set Instruction Side */ + addis r3,0,0x0800 /* OCM Data Parity Disable - 1 Wait State */ + mtdcr ocmdsisdpc,r4 + + isync +#else /* CONFIG_405EZ */ /******************************************************************** * Setup OCM - On Chip Memory *******************************************************************/ @@ -762,18 +794,20 @@ _start: lis r0, 0x7FFF ori r0, r0, 0xFFFF mfdcr r3, ocmiscntl /* get instr-side IRAM config */ - mfdcr r4, ocmdscntl /* get data-side IRAM config */ - and r3, r3, r0 /* disable data-side IRAM */ - and r4, r4, r0 /* disable data-side IRAM */ - mtdcr ocmiscntl, r3 /* set instr-side IRAM config */ - mtdcr ocmdscntl, r4 /* set data-side IRAM config */ + mfdcr r4, ocmdscntl /* get data-side IRAM config */ + and r3, r3, r0 /* disable data-side IRAM */ + and r4, r4, r0 /* disable data-side IRAM */ + mtdcr ocmiscntl, r3 /* set instr-side IRAM config */ + mtdcr ocmdscntl, r4 /* set data-side IRAM config */ isync - addis r3, 0, CFG_OCM_DATA_ADDR@h /* OCM location */ + lis r3,CFG_OCM_DATA_ADDR@h /* OCM location */ + ori r3,r3,CFG_OCM_DATA_ADDR@l mtdcr ocmdsarc, r3 addis r4, 0, 0xC000 /* OCM data area enabled */ mtdcr ocmdscntl, r4 isync +#endif /* CONFIG_405EZ */ #endif /*----------------------------------------------------------------------- */ @@ -1361,7 +1395,7 @@ ppcSync: relocate_code: #if defined(CONFIG_440EP) || defined(CONFIG_440GR) || \ defined(CONFIG_440EPX) || defined(CONFIG_440GRX) || \ - defined(CONFIG_440SPE) + defined(CONFIG_440SP) || defined(CONFIG_440SPE) /* * On some 440er platforms the cache is enabled in the first TLB (Boot-CS) * to speed up the boot process. Now this cache needs to be disabled. @@ -1858,11 +1892,11 @@ pll_wait: #endif /* CONFIG_405EP */ #if defined(CONFIG_440) -#define function_prolog(func_name) .text; \ +#define function_prolog(func_name) .text; \ .align 2; \ .globl func_name; \ func_name: -#define function_epilog(func_name) .type func_name,@function; \ +#define function_epilog(func_name) .type func_name,@function; \ .size func_name,.-func_name /*----------------------------------------------------------------------------+ @@ -1916,43 +1950,43 @@ pll_wait: /*----------------------------------------------------------------------------+ | dcbz_area. +----------------------------------------------------------------------------*/ - function_prolog(dcbz_area) - rlwinm. r5,r4,0,27,31 - rlwinm r5,r4,27,5,31 - beq ..d_ra2 - addi r5,r5,0x0001 -..d_ra2:mtctr r5 -..d_ag2:dcbz r0,r3 - addi r3,r3,32 - bdnz ..d_ag2 - sync - blr - function_epilog(dcbz_area) + function_prolog(dcbz_area) + rlwinm. r5,r4,0,27,31 + rlwinm r5,r4,27,5,31 + beq ..d_ra2 + addi r5,r5,0x0001 +..d_ra2:mtctr r5 +..d_ag2:dcbz r0,r3 + addi r3,r3,32 + bdnz ..d_ag2 + sync + blr + function_epilog(dcbz_area) /*----------------------------------------------------------------------------+ | dflush. Assume 32K at vector address is cachable. +----------------------------------------------------------------------------*/ - function_prolog(dflush) - mfmsr r9 - rlwinm r8,r9,0,15,13 - rlwinm r8,r8,0,17,15 - mtmsr r8 - addi r3,r0,0x0000 - mtspr dvlim,r3 - mfspr r3,ivpr - addi r4,r0,1024 - mtctr r4 + function_prolog(dflush) + mfmsr r9 + rlwinm r8,r9,0,15,13 + rlwinm r8,r8,0,17,15 + mtmsr r8 + addi r3,r0,0x0000 + mtspr dvlim,r3 + mfspr r3,ivpr + addi r4,r0,1024 + mtctr r4 ..dflush_loop: - lwz r6,0x0(r3) - addi r3,r3,32 - bdnz ..dflush_loop - addi r3,r3,-32 - mtctr r4 -..ag: dcbf r0,r3 - addi r3,r3,-32 - bdnz ..ag - sync - mtmsr r9 - blr - function_epilog(dflush) + lwz r6,0x0(r3) + addi r3,r3,32 + bdnz ..dflush_loop + addi r3,r3,-32 + mtctr r4 +..ag: dcbf r0,r3 + addi r3,r3,-32 + bdnz ..ag + sync + mtmsr r9 + blr + function_epilog(dflush) #endif /* CONFIG_440 */ diff --git a/cpu/ppc4xx/usb_ohci.c b/cpu/ppc4xx/usb_ohci.c index ab852c5..c71a6a9 100644 --- a/cpu/ppc4xx/usb_ohci.c +++ b/cpu/ppc4xx/usb_ohci.c @@ -76,7 +76,7 @@ #define m16_swap(x) swap_16(x) #define m32_swap(x) swap_32(x) -#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) +#if defined(CONFIG_405EZ) || defined(CONFIG_440EP) || defined(CONFIG_440EPX) #define ohci_cpu_to_le16(x) (x) #define ohci_cpu_to_le32(x) (x) #else @@ -1601,7 +1601,7 @@ int usb_lowlevel_init(void) gohci.irq = -1; #if defined(CONFIG_440EP) gohci.regs = (struct ohci_regs *)(CFG_PERIPHERAL_BASE | 0x1000); -#elif defined(CONFIG_440EPX) +#elif defined(CONFIG_440EPX) || defined(CFG_USB_HOST) gohci.regs = (struct ohci_regs *)(CFG_USB_HOST); #endif @@ -1625,8 +1625,10 @@ int usb_lowlevel_init(void) ohci_inited = 1; urb_finished = 1; +#if defined(CONFIG_440EP) || defined(CONFIG_440EPX) /* init the device driver */ usb_dev_init(); +#endif return 0; } diff --git a/cpu/ppc4xx/vecnum.h b/cpu/ppc4xx/vecnum.h index 685d48b..bddf9e5 100644 --- a/cpu/ppc4xx/vecnum.h +++ b/cpu/ppc4xx/vecnum.h @@ -231,6 +231,47 @@ #else /* !defined(CONFIG_440) */ +#if defined(CONFIG_405EZ) +#define VECNUM_D0 0 /* DMA channel 0 */ +#define VECNUM_D1 1 /* DMA channel 1 */ +#define VECNUM_D2 2 /* DMA channel 2 */ +#define VECNUM_D3 3 /* DMA channel 3 */ +#define VECNUM_1588 4 /* IEEE 1588 network synchronization */ +#define VECNUM_U0 5 /* UART0 */ +#define VECNUM_U1 6 /* UART1 */ +#define VECNUM_CAN0 7 /* CAN 0 */ +#define VECNUM_CAN1 8 /* CAN 1 */ +#define VECNUM_SPI 9 /* SPI */ +#define VECNUM_IIC0 10 /* I2C */ +#define VECNUM_CHT0 11 /* Chameleon timer high pri interrupt */ +#define VECNUM_CHT1 12 /* Chameleon timer high pri interrupt */ +#define VECNUM_USBH1 13 /* USB Host 1 */ +#define VECNUM_USBH2 14 /* USB Host 2 */ +#define VECNUM_USBDEV 15 /* USB Device */ +#define VECNUM_ETH0 16 /* 10/100 Ethernet interrupt status */ +#define VECNUM_EWU0 17 /* Ethernet wakeup sequence detected */ + +#define VECNUM_MADMAL 18 /* Logical OR of following MadMAL int */ +#define VECNUM_MS 18 /* MAL_SERR_INT */ +#define VECNUM_TXDE 18 /* MAL_TXDE_INT */ +#define VECNUM_RXDE 18 /* MAL_RXDE_INT */ + +#define VECNUM_MTE 19 /* MAL TXEOB */ +#define VECNUM_MTE1 20 /* MAL TXEOB1 */ +#define VECNUM_MRE 21 /* MAL RXEOB */ +#define VECNUM_NAND 22 /* NAND Flash controller */ +#define VECNUM_ADC 23 /* ADC */ +#define VECNUM_DAC 24 /* DAC */ +#define VECNUM_OPB2PLB 25 /* OPB to PLB bridge interrupt */ +#define VECNUM_RESERVED0 26 /* Reserved */ +#define VECNUM_EIR0 27 /* External interrupt 0 */ +#define VECNUM_EIR1 28 /* External interrupt 1 */ +#define VECNUM_EIR2 29 /* External interrupt 2 */ +#define VECNUM_EIR3 30 /* External interrupt 3 */ +#define VECNUM_EIR4 31 /* External interrupt 4 */ + +#else /* !CONFIG_405EZ */ + #define VECNUM_U0 0 /* UART0 */ #define VECNUM_U1 1 /* UART1 */ #define VECNUM_D0 5 /* DMA channel 0 */ @@ -251,6 +292,7 @@ #define VECNUM_EIR4 29 /* External interrupt 4 */ #define VECNUM_EIR5 30 /* External interrupt 5 */ #define VECNUM_EIR6 31 /* External interrupt 6 */ +#endif /* defined(CONFIG_405EZ) */ #endif /* defined(CONFIG_440) */ |