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author | Stefan Roese <sr@denx.de> | 2007-08-21 16:33:33 +0200 |
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committer | Stefan Roese <sr@denx.de> | 2007-08-21 16:33:33 +0200 |
commit | 93f798346033a1f6d22090b47abad4be88243b04 (patch) | |
tree | 45b4d2a887a89572015de3234b04b419bfc11b44 /board/freescale/mpc8349itx | |
parent | 3ad63878737a5a2b1e60825bf0a7d601d7a695e7 (diff) | |
parent | 3e66c078003607a7d1d214c15a5f262bc1b4032f (diff) | |
download | u-boot-imx-93f798346033a1f6d22090b47abad4be88243b04.zip u-boot-imx-93f798346033a1f6d22090b47abad4be88243b04.tar.gz u-boot-imx-93f798346033a1f6d22090b47abad4be88243b04.tar.bz2 |
Merge with /home/stefan/git/u-boot/u-boot-ppc4xx
Diffstat (limited to 'board/freescale/mpc8349itx')
-rw-r--r-- | board/freescale/mpc8349itx/Makefile | 48 | ||||
-rw-r--r-- | board/freescale/mpc8349itx/config.mk | 31 | ||||
-rw-r--r-- | board/freescale/mpc8349itx/mpc8349itx.c | 407 | ||||
-rw-r--r-- | board/freescale/mpc8349itx/pci.c | 392 |
4 files changed, 878 insertions, 0 deletions
diff --git a/board/freescale/mpc8349itx/Makefile b/board/freescale/mpc8349itx/Makefile new file mode 100644 index 0000000..31bcdb8 --- /dev/null +++ b/board/freescale/mpc8349itx/Makefile @@ -0,0 +1,48 @@ +# +# Copyright (C) Freescale Semiconductor, Inc. 2006. 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., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS := $(BOARD).o pci.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) + $(AR) crv $@ $(OBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend + +######################################################################### diff --git a/board/freescale/mpc8349itx/config.mk b/board/freescale/mpc8349itx/config.mk new file mode 100644 index 0000000..79f1765 --- /dev/null +++ b/board/freescale/mpc8349itx/config.mk @@ -0,0 +1,31 @@ +# +# Copyright (C) Freescale Semiconductor, Inc. 2006. 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., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +# +# MPC8349E-mITX and MPC8349E-mITX-GP +# + +sinclude $(OBJTREE)/board/$(BOARDDIR)/config.tmp + +ifndef TEXT_BASE +TEXT_BASE = 0xFEF00000 +endif diff --git a/board/freescale/mpc8349itx/mpc8349itx.c b/board/freescale/mpc8349itx/mpc8349itx.c new file mode 100644 index 0000000..c82f784 --- /dev/null +++ b/board/freescale/mpc8349itx/mpc8349itx.c @@ -0,0 +1,407 @@ +/* + * Copyright (C) Freescale Semiconductor, Inc. 2006. 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <ioports.h> +#include <mpc83xx.h> +#include <i2c.h> +#include <spd.h> +#include <miiphy.h> + +#ifdef CONFIG_PCI +#include <asm/mpc8349_pci.h> +#include <pci.h> +#endif + +#ifdef CONFIG_SPD_EEPROM +#include <spd_sdram.h> +#else +#include <asm/mmu.h> +#endif +#if defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#elif defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif + +#ifndef CONFIG_SPD_EEPROM +/************************************************************************* + * fixed sdram init -- doesn't use serial presence detect. + ************************************************************************/ +int fixed_sdram(void) +{ + volatile immap_t *im = (immap_t *) CFG_IMMR; + u32 ddr_size; /* The size of RAM, in bytes */ + u32 ddr_size_log2 = 0; + + for (ddr_size = CFG_DDR_SIZE * 0x100000; ddr_size > 1; ddr_size >>= 1) { + if (ddr_size & 1) { + return -1; + } + ddr_size_log2++; + } + + im->sysconf.ddrlaw[0].ar = + LAWAR_EN | ((ddr_size_log2 - 1) & LAWAR_SIZE); + im->sysconf.ddrlaw[0].bar = (CFG_DDR_SDRAM_BASE >> 12) & 0xfffff; + + /* Only one CS0 for DDR */ + im->ddr.csbnds[0].csbnds = 0x0000000f; + im->ddr.cs_config[0] = CFG_DDR_CONFIG; + + debug("cs0_bnds = 0x%08x\n", im->ddr.csbnds[0].csbnds); + debug("cs0_config = 0x%08x\n", im->ddr.cs_config[0]); + + debug("DDR:bar=0x%08x\n", im->sysconf.ddrlaw[0].bar); + debug("DDR:ar=0x%08x\n", im->sysconf.ddrlaw[0].ar); + + im->ddr.timing_cfg_1 = CFG_DDR_TIMING_1; + im->ddr.timing_cfg_2 = CFG_DDR_TIMING_2;/* Was "2 << TIMING_CFG2_WR_DATA_DELAY_SHIFT" */ + im->ddr.sdram_cfg = SDRAM_CFG_SREN | SDRAM_CFG_SDRAM_TYPE_DDR1; + im->ddr.sdram_mode = + (0x0000 << SDRAM_MODE_ESD_SHIFT) | (0x0032 << SDRAM_MODE_SD_SHIFT); + im->ddr.sdram_interval = + (0x0410 << SDRAM_INTERVAL_REFINT_SHIFT) | (0x0100 << + SDRAM_INTERVAL_BSTOPRE_SHIFT); + im->ddr.sdram_clk_cntl = CFG_DDR_SDRAM_CLK_CNTL; + + udelay(200); + + im->ddr.sdram_cfg |= SDRAM_CFG_MEM_EN; + + debug("DDR:timing_cfg_1=0x%08x\n", im->ddr.timing_cfg_1); + debug("DDR:timing_cfg_2=0x%08x\n", im->ddr.timing_cfg_2); + debug("DDR:sdram_mode=0x%08x\n", im->ddr.sdram_mode); + debug("DDR:sdram_interval=0x%08x\n", im->ddr.sdram_interval); + debug("DDR:sdram_cfg=0x%08x\n", im->ddr.sdram_cfg); + + return CFG_DDR_SIZE; +} +#endif + +#ifdef CONFIG_PCI +/* + * Initialize PCI Devices, report devices found + */ +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_mpc83xxmitx_config_table[] = { + { + PCI_ANY_ID, + PCI_ANY_ID, + PCI_ANY_ID, + PCI_ANY_ID, + 0x0f, + PCI_ANY_ID, + pci_cfgfunc_config_device, + { + PCI_ENET0_IOADDR, + PCI_ENET0_MEMADDR, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER} + }, + {} +} +#endif + +volatile static struct pci_controller hose[] = { + { +#ifndef CONFIG_PCI_PNP + config_table:pci_mpc83xxmitx_config_table, +#endif + }, + { +#ifndef CONFIG_PCI_PNP + config_table:pci_mpc83xxmitx_config_table, +#endif + } +}; +#endif /* CONFIG_PCI */ + +long int initdram(int board_type) +{ + volatile immap_t *im = (immap_t *) CFG_IMMR; + u32 msize = 0; +#ifdef CONFIG_DDR_ECC + volatile ddr83xx_t *ddr = &im->ddr; +#endif + + if ((im->sysconf.immrbar & IMMRBAR_BASE_ADDR) != (u32) im) + return -1; + + /* DDR SDRAM - Main SODIMM */ + im->sysconf.ddrlaw[0].bar = CFG_DDR_BASE & LAWBAR_BAR; +#ifdef CONFIG_SPD_EEPROM + msize = spd_sdram(); +#else + msize = fixed_sdram(); +#endif + +#ifdef CONFIG_DDR_ECC + if (ddr->sdram_cfg & SDRAM_CFG_ECC_EN) + /* Unlike every other board, on the 83xx spd_sdram() returns + megabytes instead of just bytes. That's why we need to + multiple by 1MB when calling ddr_enable_ecc(). */ + ddr_enable_ecc(msize * 1048576); +#endif + + /* return total bus RAM size(bytes) */ + return msize * 1024 * 1024; +} + +int checkboard(void) +{ +#ifdef CONFIG_MPC8349ITX + puts("Board: Freescale MPC8349E-mITX\n"); +#else + puts("Board: Freescale MPC8349E-mITX-GP\n"); +#endif + + return 0; +} + +/* + * Implement a work-around for a hardware problem with compact + * flash. + * + * Program the UPM if compact flash is enabled. + */ +int misc_init_f(void) +{ +#ifdef CONFIG_VSC7385 + volatile u32 *vsc7385_cpuctrl; + + /* 0x1c0c0 is the VSC7385 CPU Control (CPUCTRL) Register. The power up + default of VSC7385 L1_IRQ and L2_IRQ requests are active high. That + means it is 0 when the IRQ is not active. This makes the wire-AND + logic always assert IRQ7 to CPU even if there is no request from the + switch. Since the compact flash and the switch share the same IRQ, + the Linux kernel will think that the compact flash is requesting irq + and get stuck when it tries to clear the IRQ. Thus we need to set + the L2_IRQ0 and L2_IRQ1 to active low. + + The following code sets the L1_IRQ and L2_IRQ polarity to active low. + Without this code, compact flash will not work in Linux because + unlike U-Boot, Linux uses the IRQ, so this code is necessary if we + don't enable compact flash for U-Boot. + */ + + vsc7385_cpuctrl = (volatile u32 *)(CFG_VSC7385_BASE + 0x1c0c0); + *vsc7385_cpuctrl |= 0x0c; +#endif + +#ifdef CONFIG_COMPACT_FLASH + /* UPM Table Configuration Code */ + static uint UPMATable[] = { + 0xcffffc00, 0x0fffff00, 0x0fafff00, 0x0fafff00, + 0x0faffd00, 0x0faffc04, 0x0ffffc00, 0x3ffffc01, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfff7fc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, + 0xcffffc00, 0x0fffff00, 0x0ff3ff00, 0x0ff3ff00, + 0x0ff3fe00, 0x0ffffc00, 0x3ffffc05, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc00, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01, + 0xfffffc00, 0xfffffc00, 0xfffffc00, 0xfffffc01 + }; + volatile immap_t *immap = (immap_t *) CFG_IMMR; + volatile lbus83xx_t *lbus = &immap->lbus; + + lbus->bank[3].br = CFG_BR3_PRELIM; + lbus->bank[3].or = CFG_OR3_PRELIM; + + /* Program the MAMR. RFEN=0, OP=00, UWPL=1, AM=000, DS=01, G0CL=000, + GPL4=0, RLF=0001, WLF=0001, TLF=0001, MAD=000000 + */ + lbus->mamr = 0x08404440; + + upmconfig(0, UPMATable, sizeof(UPMATable) / sizeof(UPMATable[0])); + + puts("UPMA: Configured for compact flash\n"); +#endif + + return 0; +} + +/* + * Make sure the EEPROM has the HRCW correctly programmed. + * Make sure the RTC is correctly programmed. + * + * The MPC8349E-mITX can be configured to load the HRCW from + * EEPROM instead of flash. This is controlled via jumpers + * LGPL0, 1, and 3. Normally, these jumpers are set to 000 (all + * jumpered), but if they're set to 001 or 010, then the HRCW is + * read from the "I2C EEPROM". + * + * This function makes sure that the I2C EEPROM is programmed + * correctly. + */ +int misc_init_r(void) +{ + int rc = 0; + +#ifdef CONFIG_HARD_I2C + + unsigned int orig_bus = i2c_get_bus_num(); + u8 i2c_data; + +#ifdef CFG_I2C_RTC_ADDR + u8 ds1339_data[17]; +#endif + +#ifdef CFG_I2C_EEPROM_ADDR + static u8 eeprom_data[] = /* HRCW data */ + { + 0xAA, 0x55, 0xAA, /* Preamble */ + 0x7C, /* ACS=0, BYTE_EN=1111, CONT=1 */ + 0x02, 0x40, /* RCWL ADDR=0x0_0900 */ + (CFG_HRCW_LOW >> 24) & 0xFF, + (CFG_HRCW_LOW >> 16) & 0xFF, + (CFG_HRCW_LOW >> 8) & 0xFF, + CFG_HRCW_LOW & 0xFF, + 0x7C, /* ACS=0, BYTE_EN=1111, CONT=1 */ + 0x02, 0x41, /* RCWH ADDR=0x0_0904 */ + (CFG_HRCW_HIGH >> 24) & 0xFF, + (CFG_HRCW_HIGH >> 16) & 0xFF, + (CFG_HRCW_HIGH >> 8) & 0xFF, + CFG_HRCW_HIGH & 0xFF + }; + + u8 data[sizeof(eeprom_data)]; +#endif + + printf("Board revision: "); + i2c_set_bus_num(1); + if (i2c_read(CFG_I2C_8574A_ADDR2, 0, 0, &i2c_data, sizeof(i2c_data)) == 0) + printf("%u.%u (PCF8475A)\n", (i2c_data & 0x02) >> 1, i2c_data & 0x01); + else if (i2c_read(CFG_I2C_8574_ADDR2, 0, 0, &i2c_data, sizeof(i2c_data)) == 0) + printf("%u.%u (PCF8475)\n", (i2c_data & 0x02) >> 1, i2c_data & 0x01); + else { + printf("Unknown\n"); + rc = 1; + } + +#ifdef CFG_I2C_EEPROM_ADDR + i2c_set_bus_num(0); + + if (i2c_read(CFG_I2C_EEPROM_ADDR, 0, 2, data, sizeof(data)) == 0) { + if (memcmp(data, eeprom_data, sizeof(data)) != 0) { + if (i2c_write + (CFG_I2C_EEPROM_ADDR, 0, 2, eeprom_data, + sizeof(eeprom_data)) != 0) { + puts("Failure writing the HRCW to EEPROM via I2C.\n"); + rc = 1; + } + } + } else { + puts("Failure reading the HRCW from EEPROM via I2C.\n"); + rc = 1; + } +#endif + +#ifdef CFG_I2C_RTC_ADDR + i2c_set_bus_num(1); + + if (i2c_read(CFG_I2C_RTC_ADDR, 0, 1, ds1339_data, sizeof(ds1339_data)) + == 0) { + + /* Work-around for MPC8349E-mITX bug #13601. + If the RTC does not contain valid register values, the DS1339 + Linux driver will not work. + */ + + /* Make sure status register bits 6-2 are zero */ + ds1339_data[0x0f] &= ~0x7c; + + /* Check for a valid day register value */ + ds1339_data[0x03] &= ~0xf8; + if (ds1339_data[0x03] == 0) { + ds1339_data[0x03] = 1; + } + + /* Check for a valid date register value */ + ds1339_data[0x04] &= ~0xc0; + if ((ds1339_data[0x04] == 0) || + ((ds1339_data[0x04] & 0x0f) > 9) || + (ds1339_data[0x04] >= 0x32)) { + ds1339_data[0x04] = 1; + } + + /* Check for a valid month register value */ + ds1339_data[0x05] &= ~0x60; + + if ((ds1339_data[0x05] == 0) || + ((ds1339_data[0x05] & 0x0f) > 9) || + ((ds1339_data[0x05] >= 0x13) + && (ds1339_data[0x05] <= 0x19))) { + ds1339_data[0x05] = 1; + } + + /* Enable Oscillator and rate select */ + ds1339_data[0x0e] = 0x1c; + + /* Work-around for MPC8349E-mITX bug #13330. + Ensure that the RTC control register contains the value 0x1c. + This affects SATA performance. + */ + + if (i2c_write + (CFG_I2C_RTC_ADDR, 0, 1, ds1339_data, + sizeof(ds1339_data))) { + puts("Failure writing to the RTC via I2C.\n"); + rc = 1; + } + } else { + puts("Failure reading from the RTC via I2C.\n"); + rc = 1; + } +#endif + + i2c_set_bus_num(orig_bus); +#endif + + return rc; +} + +#if defined(CONFIG_OF_BOARD_SETUP) +void ft_board_setup(void *blob, bd_t *bd) +{ +#if defined(CONFIG_OF_FLAT_TREE) + u32 *p; + int len; + + p = ft_get_prop(blob, "/memory/reg", &len); + if (p != NULL) { + *p++ = cpu_to_be32(bd->bi_memstart); + *p = cpu_to_be32(bd->bi_memsize); + } +#endif + ft_cpu_setup(blob, bd); +#ifdef CONFIG_PCI + ft_pci_setup(blob, bd); +#endif +} +#endif diff --git a/board/freescale/mpc8349itx/pci.c b/board/freescale/mpc8349itx/pci.c new file mode 100644 index 0000000..5ca094d --- /dev/null +++ b/board/freescale/mpc8349itx/pci.c @@ -0,0 +1,392 @@ +/* + * Copyright (C) Freescale Semiconductor, Inc. 2006. 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., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> + +#ifdef CONFIG_PCI + +#include <asm/mmu.h> +#include <asm/global_data.h> +#include <pci.h> +#include <asm/mpc8349_pci.h> +#include <i2c.h> +#if defined(CONFIG_OF_FLAT_TREE) +#include <ft_build.h> +#elif defined(CONFIG_OF_LIBFDT) +#include <libfdt.h> +#endif + +DECLARE_GLOBAL_DATA_PTR; + +/* System RAM mapped to PCI space */ +#define CONFIG_PCI_SYS_MEM_BUS CFG_SDRAM_BASE +#define CONFIG_PCI_SYS_MEM_PHYS CFG_SDRAM_BASE + +#ifndef CONFIG_PCI_PNP +static struct pci_config_table pci_mpc8349itx_config_table[] = { + { + PCI_ANY_ID, + PCI_ANY_ID, + PCI_ANY_ID, + PCI_ANY_ID, + PCI_IDSEL_NUMBER, + PCI_ANY_ID, + pci_cfgfunc_config_device, + { + PCI_ENET0_IOADDR, + PCI_ENET0_MEMADDR, + PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER} + }, + {} +}; +#endif + +static struct pci_controller pci_hose[] = { + { +#ifndef CONFIG_PCI_PNP + config_table:pci_mpc8349itx_config_table, +#endif + }, + { +#ifndef CONFIG_PCI_PNP + config_table:pci_mpc8349itx_config_table, +#endif + } +}; + +/************************************************************************** + * pci_init_board() + * + * NOTICE: PCI2 is not currently supported + * + */ +void pci_init_board(void) +{ + volatile immap_t *immr; + volatile clk83xx_t *clk; + volatile law83xx_t *pci_law; + volatile pot83xx_t *pci_pot; + volatile pcictrl83xx_t *pci_ctrl; + volatile pciconf83xx_t *pci_conf; + u8 reg8; + u16 reg16; + u32 reg32; + u32 dev; + struct pci_controller *hose; + + immr = (immap_t *) CFG_IMMR; + clk = (clk83xx_t *) & immr->clk; + pci_law = immr->sysconf.pcilaw; + pci_pot = immr->ios.pot; + pci_ctrl = immr->pci_ctrl; + pci_conf = immr->pci_conf; + + hose = &pci_hose[0]; + + /* + * Configure PCI controller and PCI_CLK_OUTPUT both in 66M mode + */ + + reg32 = clk->occr; + udelay(2000); + +#ifdef CONFIG_HARD_I2C + i2c_set_bus_num(1); + /* Read the PCI_M66EN jumper setting */ + if ((i2c_read(CFG_I2C_8574_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0) || + (i2c_read(CFG_I2C_8574A_ADDR2, 0, 0, ®8, sizeof(reg8)) == 0)) { + if (reg8 & I2C_8574_PCI66) + clk->occr = 0xff000000; /* 66 MHz PCI */ + else + clk->occr = 0xff600001; /* 33 MHz PCI */ + } else { + clk->occr = 0xff600001; /* 33 MHz PCI */ + } +#else + clk->occr = 0xff000000; /* 66 MHz PCI */ +#endif + + udelay(2000); + + /* + * Release PCI RST Output signal + */ + pci_ctrl[0].gcr = 0; + udelay(2000); + pci_ctrl[0].gcr = 1; + +#ifdef CONFIG_MPC83XX_PCI2 + pci_ctrl[1].gcr = 0; + udelay(2000); + pci_ctrl[1].gcr = 1; +#endif + + /* We need to wait at least a 1sec based on PCI specs */ + { + int i; + + for (i = 0; i < 1000; i++) + udelay(1000); + } + + /* + * Configure PCI Local Access Windows + */ + pci_law[0].bar = CFG_PCI1_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G; + + pci_law[1].bar = CFG_PCI1_IO_PHYS & LAWBAR_BAR; + pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_32M; + + /* + * Configure PCI Outbound Translation Windows + */ + + /* PCI1 mem space - prefetch */ + pci_pot[0].potar = (CFG_PCI1_MEM_BASE >> 12) & POTAR_TA_MASK; + pci_pot[0].pobar = (CFG_PCI1_MEM_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[0].pocmr = POCMR_EN | POCMR_PREFETCH_EN | POCMR_CM_256M; + + /* PCI1 IO space */ + pci_pot[1].potar = (CFG_PCI1_IO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[1].pobar = (CFG_PCI1_IO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[1].pocmr = POCMR_EN | POCMR_IO | POCMR_CM_16M; + + /* PCI1 mmio - non-prefetch mem space */ + pci_pot[2].potar = (CFG_PCI1_MMIO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[2].pobar = (CFG_PCI1_MMIO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[2].pocmr = POCMR_EN | POCMR_CM_256M; + + /* + * Configure PCI Inbound Translation Windows + */ + + /* we need RAM mapped to PCI space for the devices to + * access main memory */ + pci_ctrl[0].pitar1 = 0x0; + pci_ctrl[0].pibar1 = 0x0; + pci_ctrl[0].piebar1 = 0x0; + pci_ctrl[0].piwar1 = PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | + PIWAR_WTT_SNOOP | (__ilog2(gd->ram_size) - 1); + + hose->first_busno = 0; + hose->last_busno = 0xff; + + /* PCI memory prefetch space */ + pci_set_region(hose->regions + 0, + CFG_PCI1_MEM_BASE, + CFG_PCI1_MEM_PHYS, + CFG_PCI1_MEM_SIZE, PCI_REGION_MEM | PCI_REGION_PREFETCH); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CFG_PCI1_MMIO_BASE, + CFG_PCI1_MMIO_PHYS, CFG_PCI1_MMIO_SIZE, PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 2, + CFG_PCI1_IO_BASE, + CFG_PCI1_IO_PHYS, CFG_PCI1_IO_SIZE, PCI_REGION_IO); + + /* System memory space */ + pci_set_region(hose->regions + 3, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + gd->ram_size, PCI_REGION_MEM | PCI_REGION_MEMORY); + + hose->region_count = 4; + + pci_setup_indirect(hose, + (CFG_IMMR + 0x8300), (CFG_IMMR + 0x8304)); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word(hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + +#ifdef CONFIG_PCI_SCAN_SHOW + printf("PCI: Bus Dev VenId DevId Class Int\n"); +#endif + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); + +#ifdef CONFIG_MPC83XX_PCI2 + hose = &pci_hose[1]; + + /* + * Configure PCI Outbound Translation Windows + */ + + /* PCI2 mem space - prefetch */ + pci_pot[3].potar = (CFG_PCI2_MEM_BASE >> 12) & POTAR_TA_MASK; + pci_pot[3].pobar = (CFG_PCI2_MEM_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[3].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_PREFETCH_EN | POCMR_CM_256M; + + /* PCI2 IO space */ + pci_pot[4].potar = (CFG_PCI2_IO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[4].pobar = (CFG_PCI2_IO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[4].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_IO | POCMR_CM_16M; + + /* PCI2 mmio - non-prefetch mem space */ + pci_pot[5].potar = (CFG_PCI2_MMIO_BASE >> 12) & POTAR_TA_MASK; + pci_pot[5].pobar = (CFG_PCI2_MMIO_PHYS >> 12) & POBAR_BA_MASK; + pci_pot[5].pocmr = POCMR_EN | POCMR_PCI2 | POCMR_CM_256M; + + /* + * Configure PCI Inbound Translation Windows + */ + + /* we need RAM mapped to PCI space for the devices to + * access main memory */ + pci_ctrl[1].pitar1 = 0x0; + pci_ctrl[1].pibar1 = 0x0; + pci_ctrl[1].piebar1 = 0x0; + pci_ctrl[1].piwar1 = + PIWAR_EN | PIWAR_PF | PIWAR_RTT_SNOOP | PIWAR_WTT_SNOOP | + (__ilog2(gd->ram_size) - 1); + + hose->first_busno = pci_hose[0].last_busno + 1; + hose->last_busno = 0xff; + + /* PCI memory prefetch space */ + pci_set_region(hose->regions + 0, + CFG_PCI2_MEM_BASE, + CFG_PCI2_MEM_PHYS, + CFG_PCI2_MEM_SIZE, PCI_REGION_MEM | PCI_REGION_PREFETCH); + + /* PCI memory space */ + pci_set_region(hose->regions + 1, + CFG_PCI2_MMIO_BASE, + CFG_PCI2_MMIO_PHYS, CFG_PCI2_MMIO_SIZE, PCI_REGION_MEM); + + /* PCI IO space */ + pci_set_region(hose->regions + 2, + CFG_PCI2_IO_BASE, + CFG_PCI2_IO_PHYS, CFG_PCI2_IO_SIZE, PCI_REGION_IO); + + /* System memory space */ + pci_set_region(hose->regions + 3, + CONFIG_PCI_SYS_MEM_BUS, + CONFIG_PCI_SYS_MEM_PHYS, + gd->ram_size, PCI_REGION_MEM | PCI_REGION_MEMORY); + + hose->region_count = 4; + + pci_setup_indirect(hose, + (CFG_IMMR + 0x8380), (CFG_IMMR + 0x8384)); + + pci_register_hose(hose); + + /* + * Write to Command register + */ + reg16 = 0xff; + dev = PCI_BDF(hose->first_busno, 0, 0); + pci_hose_read_config_word(hose, dev, PCI_COMMAND, ®16); + reg16 |= PCI_COMMAND_SERR | PCI_COMMAND_MASTER | PCI_COMMAND_MEMORY; + pci_hose_write_config_word(hose, dev, PCI_COMMAND, reg16); + + /* + * Clear non-reserved bits in status register. + */ + pci_hose_write_config_word(hose, dev, PCI_STATUS, 0xffff); + pci_hose_write_config_byte(hose, dev, PCI_LATENCY_TIMER, 0x80); + pci_hose_write_config_byte(hose, dev, PCI_CACHE_LINE_SIZE, 0x08); + + /* + * Hose scan. + */ + hose->last_busno = pci_hose_scan(hose); +#endif +} + +#if defined(CONFIG_OF_LIBFDT) +void +ft_pci_setup(void *blob, bd_t *bd) +{ + int nodeoffset; + int err; + int tmp[2]; + + nodeoffset = fdt_find_node_by_path(blob, "/" OF_SOC "/pci@8500"); + if (nodeoffset >= 0) { + tmp[0] = cpu_to_be32(pci_hose[0].first_busno); + tmp[1] = cpu_to_be32(pci_hose[0].last_busno); + err = fdt_setprop(blob, nodeoffset, "bus-range", + tmp, sizeof(tmp)); + + tmp[0] = cpu_to_be32(gd->pci_clk); + err = fdt_setprop(blob, nodeoffset, "clock-frequency", + tmp, sizeof(tmp[0])); + } +#ifdef CONFIG_MPC83XX_PCI2 + nodeoffset = fdt_find_node_by_path(blob, "/" OF_SOC "/pci@8500"); + if (nodeoffset >= 0) { + tmp[0] = cpu_to_be32(pci_hose[1].first_busno); + tmp[1] = cpu_to_be32(pci_hose[1].last_busno); + err = fdt_setprop(blob, nodeoffset, "bus-range", + tmp, sizeof(tmp)); + + tmp[0] = cpu_to_be32(gd->pci_clk); + err = fdt_setprop(blob, nodeoffset, "clock-frequency", + tmp, sizeof(tmp[0])); + } +#endif +} +#elif defined(CONFIG_OF_FLAT_TREE) +void +ft_pci_setup(void *blob, bd_t *bd) +{ + u32 *p; + int len; + + p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8500/bus-range", &len); + if (p != NULL) { + p[0] = pci_hose[0].first_busno; + p[1] = pci_hose[0].last_busno; + } + +#ifdef CONFIG_MPC83XX_PCI2 + p = (u32 *)ft_get_prop(blob, "/" OF_SOC "/pci@8600/bus-range", &len); + if (p != NULL) { + p[0] = pci_hose[1].first_busno; + p[1] = pci_hose[1].last_busno; + } +#endif +} +#endif /* CONFIG_OF_FLAT_TREE */ +#endif /* CONFIG_PCI */ |