diff options
Diffstat (limited to 'board')
| -rw-r--r-- | board/apollon/Makefile | 48 | ||||
| -rw-r--r-- | board/apollon/apollon.c | 608 | ||||
| -rw-r--r-- | board/apollon/config.mk | 25 | ||||
| -rw-r--r-- | board/apollon/lowlevel_init.S | 337 | ||||
| -rw-r--r-- | board/apollon/mem.c | 228 | ||||
| -rw-r--r-- | board/apollon/mem.h | 170 | ||||
| -rw-r--r-- | board/apollon/sys_info.c | 408 | ||||
| -rw-r--r-- | board/apollon/u-boot.lds | 64 |
8 files changed, 1888 insertions, 0 deletions
diff --git a/board/apollon/Makefile b/board/apollon/Makefile new file mode 100644 index 0000000..5348f2d --- /dev/null +++ b/board/apollon/Makefile @@ -0,0 +1,48 @@ +# +# (C) Copyright 2000, 2001, 2002 +# 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., 59 Temple Place, Suite 330, Boston, +# MA 02111-1307 USA +# + +include $(TOPDIR)/config.mk + +LIB = $(obj)lib$(BOARD).a + +COBJS := apollon.o mem.o sys_info.o +SOBJS := lowlevel_init.o + +SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c) +OBJS := $(addprefix $(obj),$(COBJS)) +SOBJS := $(addprefix $(obj),$(SOBJS)) + +$(LIB): $(obj).depend $(OBJS) $(SOBJS) + $(AR) $(ARFLAGS) $@ $(OBJS) $(SOBJS) + +clean: + rm -f $(SOBJS) $(OBJS) + +distclean: clean + rm -f $(LIB) core *.bak .depend + +######################################################################### + +include $(SRCTREE)/rules.mk + +sinclude $(obj).depend diff --git a/board/apollon/apollon.c b/board/apollon/apollon.c new file mode 100644 index 0000000..e2c6277 --- /dev/null +++ b/board/apollon/apollon.c @@ -0,0 +1,608 @@ +/* + * (C) Copyright 2005-2007 + * Samsung Electronics. + * Kyungmin Park <kyungmin.park@samsung.com> + * + * Derived from omap2420 + * + * 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/omap2420.h> +#include <asm/io.h> +#include <asm/arch/bits.h> +#include <asm/arch/mux.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/sys_info.h> +#include <asm/arch/mem.h> +#include <i2c.h> +#include <asm/mach-types.h> + +void wait_for_command_complete(unsigned int wd_base); + +/******************************************************* + * Routine: delay + * Description: spinning delay to use before udelay works +******************************************************/ +static inline void delay(unsigned long loops) { + __asm__ volatile ("1:\n" "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0"(loops)); } + +/***************************************** + * Routine: board_init + * Description: Early hardware init. + *****************************************/ +int board_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + + gpmc_init(); /* in SRAM or SDRM, finish GPMC */ + + gd->bd->bi_arch_number = 919; + /* adress of boot parameters */ + gd->bd->bi_boot_params = (OMAP2420_SDRC_CS0 + 0x100); + + return 0; +} + +/********************************************************** + * Routine: s_init + * Description: Does early system init of muxing and clocks. + * - Called path is with sram stack. + **********************************************************/ +void s_init(void) +{ + + watchdog_init(); + set_muxconf_regs(); + delay(100); + + peripheral_enable(); + icache_enable(); +} + +/******************************************************* + * Routine: misc_init_r + * Description: Init ethernet (done here so udelay works) +********************************************************/ +int misc_init_r(void) +{ + ether_init(); /* better done here so timers are init'ed */ + return (0); +} + +/**************************************** + * Routine: watchdog_init + * Description: Shut down watch dogs + *****************************************/ +void watchdog_init(void) +{ + /* There are 4 watch dogs. 1 secure, and 3 general purpose. + * The ROM takes care of the secure one. Of the 3 GP ones, + * 1 can reset us directly, the other 2 only generate MPU interrupts. + */ + __raw_writel(WD_UNLOCK1, WD2_BASE + WSPR); + wait_for_command_complete(WD2_BASE); + __raw_writel(WD_UNLOCK2, WD2_BASE + WSPR); + +#define MPU_WD_CLOCKED 1 +#if MPU_WD_CLOCKED /* value 0x10 stick on aptix, BIT4 polarity seems oppsite */ + __raw_writel(WD_UNLOCK1, WD3_BASE + WSPR); + wait_for_command_complete(WD3_BASE); + __raw_writel(WD_UNLOCK2, WD3_BASE + WSPR); + + __raw_writel(WD_UNLOCK1, WD4_BASE + WSPR); + wait_for_command_complete(WD4_BASE); + __raw_writel(WD_UNLOCK2, WD4_BASE + WSPR); +#endif +} + +/****************************************************** + * Routine: wait_for_command_complete + * Description: Wait for posting to finish on watchdog +******************************************************/ +void wait_for_command_complete(unsigned int wd_base) { + int pending = 1; + do { + pending = __raw_readl(wd_base + WWPS); + } while (pending); +} + +/******************************************************************* + * Routine:ether_init + * Description: take the Ethernet controller out of reset and wait + * for the EEPROM load to complete. + ******************************************************************/ +void ether_init(void) +{ +#ifdef CONFIG_DRIVER_LAN91C96 + int cnt = 20; + + __raw_writeb(0x03, OMAP2420_CTRL_BASE + 0x0f2); /*protect->gpio74 */ + + __raw_writew(0x0, LAN_RESET_REGISTER); + do { + __raw_writew(0x1, LAN_RESET_REGISTER); + udelay(100); + if (cnt == 0) { + printf("1. eth reset err\n"); + goto eth_reset_err_out; + } + --cnt; + } while (__raw_readw(LAN_RESET_REGISTER) != 0x1); + + cnt = 20; + + do { + __raw_writew(0x0, LAN_RESET_REGISTER); + udelay(100); + if (cnt == 0) { + printf("2. eth reset err\n"); + goto eth_reset_err_out; + } + --cnt; + } while (__raw_readw(LAN_RESET_REGISTER) != 0x0000); + udelay(1000); + + *((volatile unsigned char *)ETH_CONTROL_REG) &= ~0x01; + udelay(1000); + +eth_reset_err_out: + return; +#endif +} + +/********************************************** + * Routine: dram_init + * Description: sets uboots idea of sdram size +**********************************************/ +int dram_init(void) +{ + DECLARE_GLOBAL_DATA_PTR; + unsigned int size0 = 0, size1 = 0; + u32 mtype, btype, rev = 0, cpu = 0; +#define NOT_EARLY 0 + + btype = get_board_type(); + mtype = get_mem_type(); + rev = get_cpu_rev(); + cpu = get_cpu_type(); + + display_board_info(btype); + + if ((mtype == DDR_COMBO) || (mtype == DDR_STACKED)) { + printf("ddr combo\n"); + do_sdrc_init(SDRC_CS1_OSET, NOT_EARLY); /* init other chip select */ + } + + size0 = get_sdr_cs_size(SDRC_CS0_OSET); + size1 = get_sdr_cs_size(SDRC_CS1_OSET); + + gd->bd->bi_dram[0].start = PHYS_SDRAM_1; + gd->bd->bi_dram[0].size = size0; +#if CONFIG_NR_DRAM_BANKS > 1 + gd->bd->bi_dram[1].start = PHYS_SDRAM_1 + size0; + gd->bd->bi_dram[1].size = size1; +#endif + + return 0; +} + +/********************************************************** + * Routine: set_muxconf_regs + * Description: Setting up the configuration Mux registers + * specific to the hardware + *********************************************************/ +void set_muxconf_regs(void) +{ + muxSetupSDRC(); + muxSetupGPMC(); + muxSetupUsb0(); /* USB Device */ + muxSetupUsbHost(); /* USB Host */ + muxSetupUART1(); + muxSetupLCD(); + muxSetupMMCSD(); + muxSetupTouchScreen(); +} + +/***************************************************************** + * Routine: peripheral_enable + * Description: Enable the clks & power for perifs (GPT2, UART1,...) +******************************************************************/ +void peripheral_enable(void) +{ + unsigned int v, if_clks = 0, func_clks = 0; + + /* Enable GP2 timer. */ + if_clks |= BIT4 | BIT3; + func_clks |= BIT4 | BIT3; + v = __raw_readl(CM_CLKSEL2_CORE) | 0x4 | 0x2; /* Sys_clk input OMAP2420_GPT2 */ + __raw_writel(v, CM_CLKSEL2_CORE); + __raw_writel(0x1, CM_CLKSEL_WKUP); + +#ifdef CFG_NS16550 + /* Enable UART1 clock */ + func_clks |= BIT21; + if_clks |= BIT21; +#endif + v = __raw_readl(CM_ICLKEN1_CORE) | if_clks; /* Interface clocks on */ + __raw_writel(v, CM_ICLKEN1_CORE); + v = __raw_readl(CM_FCLKEN1_CORE) | func_clks; /* Functional Clocks on */ + __raw_writel(v, CM_FCLKEN1_CORE); + delay(1000); + +#ifndef KERNEL_UPDATED + { +#define V1 0xffffffff +#define V2 0x00000007 + + __raw_writel(V1, CM_FCLKEN1_CORE); + __raw_writel(V2, CM_FCLKEN2_CORE); + __raw_writel(V1, CM_ICLKEN1_CORE); + __raw_writel(V1, CM_ICLKEN2_CORE); + } +#endif +} + +/**************************************** + * Routine: muxSetupUsb0 (ostboot) + * Description: Setup usb muxing + *****************************************/ +void muxSetupUsb0(void) +{ + volatile uint8 *MuxConfigReg; + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_PUEN; + *MuxConfigReg &= (uint8) (~0x1F); + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_VP; + *MuxConfigReg &= (uint8) (~0x1F); + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_VM; + *MuxConfigReg &= (uint8) (~0x1F); + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_RCV; + *MuxConfigReg &= (uint8) (~0x1F); + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_TXEN; + *MuxConfigReg &= (uint8) (~0x1F); + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_SE0; + *MuxConfigReg &= (uint8) (~0x1F); + + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_DAT; + *MuxConfigReg &= (uint8) (~0x1F); +} + +#define CONTROL_PADCONF_USB1_RCV ((volatile uint8 *)0x480000EB) +#define CONTROL_PADCONF_USB1_TXEN ((volatile uint8 *)0x480000EC) +#define CONTROL_PADCONF_GPIO69 ((volatile uint8 *)0x480000ED) +#define CONTROL_PADCONF_GPIO70 ((volatile uint8 *)0x480000EE) + +#define CONTROL_PADCONF_GPIO102 ((volatile uint8 *)0x48000116) +#define CONTROL_PADCONF_GPIO103 ((volatile uint8 *)0x48000117) +#define CONTROL_PADCONF_GPIO104 ((volatile uint8 *)0x48000118) +#define CONTROL_PADCONF_GPIO105 ((volatile uint8 *)0x48000119) +/**************************************** + * Routine: muxSetupUSBHost (ostboot) + * Description: Setup USB Host muxing + *****************************************/ +void muxSetupUsbHost(void) +{ + volatile uint8 *MuxConfigReg; + + /* V19 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB1_RCV; + *MuxConfigReg = 1; + /* W20 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB1_TXEN; + *MuxConfigReg = 1; + /* N14 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPIO69; + *MuxConfigReg = 3; + /* P15 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPIO70; + *MuxConfigReg = 3; + + /* L18 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPIO102; + *MuxConfigReg = 3; + /* L19 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPIO103; + *MuxConfigReg = 3; + /* K15 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPIO104; + *MuxConfigReg = 3; + /* K14 */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPIO105; + *MuxConfigReg = 3; +} + +/**************************************** + * Routine: muxSetupUART1 (ostboot) + * Description: Set up uart1 muxing + *****************************************/ +void muxSetupUART1(void) +{ + volatile unsigned char *MuxConfigReg; + + /* UART1_CTS pin configuration, PIN = D21 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_CTS; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* UART1_RTS pin configuration, PIN = H21 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_RTS; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* UART1_TX pin configuration, PIN = L20 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_TX; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* UART1_RX pin configuration, PIN = T21 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_RX; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ +} + +/**************************************** + * Routine: muxSetupLCD (ostboot) + * Description: Setup lcd muxing + *****************************************/ +void muxSetupLCD(void) +{ + volatile unsigned char *MuxConfigReg; + + /* LCD_D0 pin configuration, PIN = Y7 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D0; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D1 pin configuration, PIN = P10 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D1; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D2 pin configuration, PIN = V8 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D2; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D3 pin configuration, PIN = Y8 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D3; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D4 pin configuration, PIN = W8 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D4; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D5 pin configuration, PIN = R10 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D5; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D6 pin configuration, PIN = Y9 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D6; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D7 pin configuration, PIN = V9 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D7; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D8 pin configuration, PIN = W9 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D8; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D9 pin configuration, PIN = P11 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D9; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D10 pin configuration, PIN = V10 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D10; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D11 pin configuration, PIN = Y10 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D11; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D12 pin configuration, PIN = W10 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D12; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D13 pin configuration, PIN = R11 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D13; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D14 pin configuration, PIN = V11 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D14; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D15 pin configuration, PIN = W11 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D15; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D16 pin configuration, PIN = P12 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D16; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_D17 pin configuration, PIN = R12 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D17; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_PCLK pin configuration, PIN = W6 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_PCLK; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_VSYNC pin configuration, PIN = V7 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_VSYNC; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_HSYNC pin configuration, PIN = Y6 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_HSYNC; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* LCD_ACBIAS pin configuration, PIN = W7 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_ACBIAS; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ +} + +/**************************************** + * Routine: muxSetupMMCSD (ostboot) + * Description: set up MMC muxing + *****************************************/ +void muxSetupMMCSD(void) +{ + volatile unsigned char *MuxConfigReg; + + /* SDMMC_CLKI pin configuration, PIN = H15 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CLKI; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SDMMC_CLKO pin configuration, PIN = G19 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CLKO; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SDMMC_CMD pin configuration, PIN = H18 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CMD; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + /* External pull-ups are present. */ + /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */ + + /* SDMMC_DAT0 pin configuration, PIN = F20 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT0; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + /* External pull-ups are present. */ + /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */ + + /* SDMMC_DAT1 pin configuration, PIN = H14 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT1; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + /* External pull-ups are present. */ + /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */ + + /* SDMMC_DAT2 pin configuration, PIN = E19 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT2; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + /* External pull-ups are present. */ + /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */ + + /* SDMMC_DAT3 pin configuration, PIN = D19 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT3; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + /* External pull-ups are present. */ + /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */ + + /* SDMMC_DDIR0 pin configuration, PIN = F19 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR0; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SDMMC_DDIR1 pin configuration, PIN = E20 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR1; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SDMMC_DDIR2 pin configuration, PIN = F18 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR2; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SDMMC_DDIR3 pin configuration, PIN = E18 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR3; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SDMMC_CDIR pin configuration, PIN = G18 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CMD_DIR; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ +} + +/****************************************** + * Routine: muxSetupTouchScreen (ostboot) + * Description: Set up touch screen muxing +*******************************************/ +void muxSetupTouchScreen(void) +{ + volatile unsigned char *MuxConfigReg; + + /* SPI1_CLK pin configuration, PIN = U18 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_CLK; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SPI1_MOSI pin configuration, PIN = V20 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_SIMO; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SPI1_MISO pin configuration, PIN = T18 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_SOMI; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + + /* SPI1_nCS0 pin configuration, PIN = U19 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_NCS0; + *MuxConfigReg = 0x00; /* Mode = 0, PUPD=Disabled */ + +#define CONTROL_PADCONF_GPIO85 CONTROL_PADCONF_SPI1_NCS1 + + /* PEN_IRQ pin configuration, PIN = N15 */ + MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_GPIO85; + *MuxConfigReg = 0x03; /* Mode = 3, PUPD=Disabled */ +} + +/*************************************************************** + * Routine: muxSetupGPMC (ostboot) + * Description: Configures balls which cam up in protected mode +***************************************************************/ +void muxSetupGPMC(void) +{ + volatile uint8 *MuxConfigReg; + volatile unsigned int *MCR = (volatile unsigned int *)0x4800008C; + + /* gpmc_io_dir */ + *MCR = 0x19000000; + + /* NOR FLASH CS0 */ + /* signal - Gpmc_clk; + pin - J4; offset - 0x0088; mode - 0; Byte-3 Pull/up - N/A */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_D2_BYTE3; + *MuxConfigReg = 0x00; + + /* MPDB(Multi Port Debug Port) CS1 */ + /* signal - gpmc_ncs1; + pin - N8; offset - 0x008C; mode - 0; Byte-1 Pull/up - N/A */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_NCS0_BYTE1; + *MuxConfigReg = 0x00; + + /* signal - Gpmc_ncs2; + pin - E2; offset - 0x008C; mode - 0; Byte-2 Pull/up - N/A */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_NCS0_BYTE2; + *MuxConfigReg = 0x00; + + /* signal - Gpmc_ncs3; + pin - N2; offset - 0x008C; mode - 0; Byte-3 Pull/up - N/A */ + MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_NCS0_BYTE3; + *MuxConfigReg = 0x00; + + MuxConfigReg = (volatile uint8 *)((volatile unsigned char *)0x48000090); + *MuxConfigReg = 0x00; + MuxConfigReg = (volatile uint8 *)((volatile unsigned char *)0x48000091); + *MuxConfigReg = 0x00; + MuxConfigReg = (volatile uint8 *)((volatile unsigned char *)0x48000092); + *MuxConfigReg = 0x00; + MuxConfigReg = (volatile uint8 *)((volatile unsigned char *)0x48000093); + *MuxConfigReg = 0x00; +} + +/**************************************************************** + * Routine: muxSetupSDRC (ostboot) + * Description: Configures balls which come up in protected mode +****************************************************************/ +void muxSetupSDRC(void) +{ + /* It's set by IPL */ +} diff --git a/board/apollon/config.mk b/board/apollon/config.mk new file mode 100644 index 0000000..417b954 --- /dev/null +++ b/board/apollon/config.mk @@ -0,0 +1,25 @@ +# +# (C) Copyright 2005-2007 +# Samsung Electronics +# +# Samsung December board with OMAP2420 (ARM1136) cpu +# see http://www.ti.com/ for more information on Texas Instruments +# +# December has 1 bank of 128MB mDDR-SDRAM on CS0 +# December has 1 bank of 00MB mDDR-SDRAM on CS1 +# Physical Address: +# 8000'0000 (bank0) +# A000/0000 (bank1) ES2 will be configurable +# Linux-Kernel is expected to be at 8000'8000, entry 8000'8000 +# (mem base + reserved) +# For use with external or internal boots. +TEXT_BASE = 0x80e80000 + +# Used with full SRAM boot. +# This is either with a GP system or a signed boot image. +# easiest, and safest way to go if you can. +#TEXT_BASE = 0x40270000 + +# Handy to get symbols to debug ROM version. +#TEXT_BASE = 0x0 +#TEXT_BASE = 0x08000000 diff --git a/board/apollon/lowlevel_init.S b/board/apollon/lowlevel_init.S new file mode 100644 index 0000000..7676259 --- /dev/null +++ b/board/apollon/lowlevel_init.S @@ -0,0 +1,337 @@ +/* + * Board specific setup info + * + * (C) Copyright 2005-2007 + * Samsung Electronics, + * Kyungmin Park <kyungmin.park@samsung.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 <config.h> +#include <version.h> +#include <asm/arch/omap2420.h> +#include <asm/arch/mem.h> +#include <asm/arch/clocks.h> +#include "mem.h" + +#define APOLLON_CS0_BASE 0x00000000 + +#ifdef PRCM_CONFIG_I +# define SDRC_ACTIM_CTRLA_0_VAL 0x7BA35907 +# define SDRC_ACTIM_CTRLB_0_VAL 0x00000013 +# define SDRC_RFR_CTRL_0_VAL 0x00044C01 +#elif defined(PRCM_CONFIG_II) +# define SDRC_ACTIM_CTRLA_0_VAL 0x4A59B485 +# define SDRC_ACTIM_CTRLB_0_VAL 0x0000000C +# define SDRC_RFR_CTRL_0_VAL 0x00030001 +#endif + +#define SDRAM_BASE_ADDRESS 0x80008000 + +_TEXT_BASE: + .word TEXT_BASE /* sdram load addr from config.mk */ + +.globl lowlevel_init +lowlevel_init: + +#ifdef CFG_NOR_BOOT + /* Check running in SDRAM */ + mov r0, pc, lsr #28 + cmp r0, #8 + beq prcm_setup + +flash_setup: + /* In Flash */ + ldr r0, =WD2_BASE + ldr r1, =WD_UNLOCK1 + str r1, [r0, #WSPR] + + ldr r1, =WD_UNLOCK2 + str r1, [r0, #WSPR] + + /* Pin muxing for SDRC */ + mov r1, #0x00 + ldr r0, =0x480000A1 /* ball C12, mode 0 */ + strb r1, [r0] + + ldr r0, =0x48000032 /* ball D11, mode 0 */ + strb r1, [r0] + + ldr r0, =0x480000A3 /* ball B13, mode 0 */ + strb r1, [r0] + + /* SDRC setting */ + ldr r0, =OMAP2420_SDRC_BASE + ldr r1, =0x00000010 + str r1, [r0, #0x10] + + ldr r1, =0x00000100 + str r1, [r0, #0x44] + + /* SDRC CS0 configuration */ + ldr r1, =0x00d04011 + str r1, [r0, #0x80] + + ldr r1, =SDRC_ACTIM_CTRLA_0_VAL + str r1, [r0, #0x9C] + + ldr r1, =SDRC_ACTIM_CTRLB_0_VAL + str r1, [r0, #0xA0] + + ldr r1, =SDRC_RFR_CTRL_0_VAL + str r1, [r0, #0xA4] + + ldr r1, =0x00000041 + str r1, [r0, #0x70] + + /* Manual command sequence */ + ldr r1, =0x00000007 + str r1, [r0, #0xA8] + + ldr r1, =0x00000000 + str r1, [r0, #0xA8] + + ldr r1, =0x00000001 + str r1, [r0, #0xA8] + + ldr r1, =0x00000002 + str r1, [r0, #0xA8] + str r1, [r0, #0xA8] + + /* + * CS0 SDRC Mode register + * Burst length = 4 - DDR memory + * Serial mode + * CAS latency = 3 + */ + ldr r1, =0x00000032 + str r1, [r0, #0x84] + + /* Note: You MUST set EMR values */ + /* EMR1 & EMR2 */ + ldr r1, =0x00000000 + str r1, [r0, #0x88] + str r1, [r0, #0x8C] + +#ifdef OLD_SDRC_DLLA_CTRL + /* SDRC_DLLA_CTRL */ + ldr r1, =0x00007306 + str r1, [r0, #0x60] + + ldr r1, =0x00007303 + str r1, [r0, #0x60] +#else + /* SDRC_DLLA_CTRL */ + ldr r1, =0x00000506 + str r1, [r0, #0x60] + + ldr r1, =0x00000503 + str r1, [r0, #0x60] +#endif + +#ifdef __BROKEN_FEATURE__ + /* SDRC_DLLB_CTRL */ + ldr r1, =0x00000506 + str r1, [r0, #0x68] + + ldr r1, =0x00000503 + str r1, [r0, #0x68] +#endif + + /* little delay after init */ + mov r2, #0x1800 +1: + subs r2, r2, #0x1 + bne 1b + + /* Setup base address */ + ldr r0, =0x00000000 /* NOR address */ + ldr r1, =SDRAM_BASE_ADDRESS /* SDRAM address */ + ldr r2, =0x20000 /* Size: 128KB */ + +copy_loop: + ldmia r0!, {r3-r10} + stmia r1!, {r3-r10} + cmp r0, r2 + ble copy_loop + + ldr r1, =SDRAM_BASE_ADDRESS + mov lr, pc + mov pc, r1 +#endif + +prcm_setup: + ldr r0, =OMAP2420_CM_BASE + ldr r1, [r0, #0x544] /* CLKSEL2_PLL */ + bic r1, r1, #0x03 + orr r1, r1, #0x02 + str r1, [r0, #0x544] + + ldr r1, [r0, #0x500] + bic r1, r1, #0x03 + orr r1, r1, #0x01 + str r1, [r0, #0x500] + + ldr r1, [r0, #0x140] + bic r1, r1, #0x1f + orr r1, r1, #0x02 + str r1, [r0, #0x140] + +#ifdef PRCM_CONFIG_I + ldr r1, =0x000003C3 +#else + ldr r1, =0x00000343 +#endif + str r1, [r0, #0x840] + + ldr r1, =0x00000002 + str r1, [r0, #0x340] + + ldr r1, =CM_CLKSEL1_CORE +#ifdef PRCM_CONFIG_I + ldr r2, =0x08300C44 +#else + ldr r2, =0x04600C26 +#endif + str r2, [r1] + + ldr r0, =OMAP2420_CM_BASE + ldr r1, [r0, #0x084] + and r1, r1, #0x01 + cmp r1, #0x01 + bne clkvalid + + b . + +clkvalid: + mov r1, #0x01 + str r1, [r0, #0x080] + +waitvalid: + ldr r1, [r0, #0x084] + and r1, r1, #0x01 + cmp r1, #0x00 + bne waitvalid + + ldr r0, =CM_CLKSEL1_PLL +#ifdef PRCM_CONFIG_I + ldr r1, =0x01837100 +#else + ldr r1, =0x01832100 +#endif + str r1, [r0] + + ldr r0, =PRCM_CLKCFG_CTRL + mov r1, #0x01 + str r1, [r0] + mov r6, #0x50 +loop1: + subs r6, r6, #0x01 + cmp r6, #0x01 + bne loop1 + + ldr r0, =CM_CLKEN_PLL + mov r1, #0x0f + str r1, [r0] + + mov r6, #0x100 +loop2: + subs r6, r6, #0x01 + cmp r6, #0x01 + bne loop2 + + ldr r0, =0x48008200 + ldr r1, =0xbfffffff + str r1, [r0] + + ldr r0, =0x48008210 + ldr r1, =0xfffffff9 + str r1, [r0] + + ldr r0, =0x4806a004 + ldr r1, =0x00 + strb r1, [r0] + + ldr r0, =0x4806a020 + ldr r1, =0x07 + strb r1, [r0] + + ldr r0, =0x4806a00c + ldr r1, =0x83 + strb r1, [r0] + + ldr r0, =0x4806a000 + ldr r1, =0x1a + strb r1, [r0] + + ldr r0, =0x4806a004 + ldr r1, =0x00 + strb r1, [r0] + + ldr r0, =0x4806a00c + ldr r1, =0x03 + strb r1, [r0] + + ldr r0, =0x4806a010 + ldr r1, =0x03 + strb r1, [r0] + + ldr r0, =0x4806a008 + ldr r1, =0x04 + strb r1, [r0] + + ldr r0, =0x4806a020 + ldr r1, =0x00 + strb r1, [r0] + +#if 0 + ldr r0, =0x4806a000 + mov r1, #'u' + strb r1, [r0] +#endif + +#if 0 + /* LED0 OFF */ + ldr r3, =0x480000E5 + mov r4, #0x0b + strb r4, [r3] +#endif + + ldr sp, SRAM_STACK + str ip, [sp] /* stash old link register */ + mov ip, lr /* save link reg across call */ + bl s_init /* go setup pll,mux,memory */ + ldr ip, [sp] /* restore save ip */ + mov lr, ip /* restore link reg */ + + /* map interrupt controller */ + ldr r0, VAL_INTH_SETUP + mcr p15, 0, r0, c15, c2, 4 + + /* back to arch calling code */ + mov pc, lr + + /* the literal pools origin */ + .ltorg + +VAL_INTH_SETUP: + .word PERIFERAL_PORT_BASE +SRAM_STACK: + .word LOW_LEVEL_SRAM_STACK diff --git a/board/apollon/mem.c b/board/apollon/mem.c new file mode 100644 index 0000000..8154d11 --- /dev/null +++ b/board/apollon/mem.c @@ -0,0 +1,228 @@ +/* + * (C) Copyright 2005-2007 + * Samsung Electronics, + * Kyungmin Park <kyungmin.park@samsung.com> + * + * Derived from omap2420 + * + * 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/omap2420.h> +#include <asm/io.h> +#include <asm/arch/bits.h> +#include <asm/arch/mux.h> +#include <asm/arch/mem.h> +#include <asm/arch/clocks.h> +#include <asm/arch/sys_proto.h> +#include <asm/arch/sys_info.h> + +#include "mem.h" + +/************************************************************ + * sdelay() - simple spin loop. Will be constant time as + * its generally used in 12MHz bypass conditions only. This + * is necessary until timers are accessible. + * + * not inline to increase chances its in cache when called +*************************************************************/ +void sdelay(unsigned long loops) +{ + __asm__ volatile ("1:\n" "subs %0, %1, #1\n" + "bne 1b":"=r" (loops):"0"(loops)); +} + +/***************************************************************************** + * prcm_init() - inits clocks for PRCM as defined in clocks.h + * (config II default). Called from SRAM, or Flash (using temp SRAM stack). + *****************************************************************************/ +void prcm_init(void) +{ +} + +/************************************************************************** + * make_cs1_contiguous() - for es2 and above remap cs1 behind cs0 to allow + * command line mem=xyz use all memory with out discontigious support + * compiled in. Could do it at the ATAG, but there really is two banks... + * Called as part of 2nd phase DDR init. + **************************************************************************/ +void make_cs1_contiguous(void) +{ + u32 size, a_add_low, a_add_high; + + size = get_sdr_cs_size(SDRC_CS0_OSET); + size /= SZ_32M; /* find size to offset CS1 */ + a_add_high = (size & 3) << 8; /* set up low field */ + a_add_low = (size & 0x3C) >> 2; /* set up high field */ + __raw_writel((a_add_high | a_add_low), SDRC_CS_CFG); +} + +/******************************************************** + * mem_ok() - test used to see if timings are correct + * for a part. Helps in gussing which part + * we are currently using. + *******************************************************/ +u32 mem_ok(void) +{ + u32 val1, val2; + u32 pattern = 0x12345678; + + __raw_writel(0x0, OMAP2420_SDRC_CS0 + 0x400); /* clear pos A */ + __raw_writel(pattern, OMAP2420_SDRC_CS0); /* pattern to pos B */ + __raw_writel(0x0, OMAP2420_SDRC_CS0 + 4); /* remove pattern off the bus */ + val1 = __raw_readl(OMAP2420_SDRC_CS0 + 0x400); /* get pos A value */ + val2 = __raw_readl(OMAP2420_SDRC_CS0); /* get val2 */ + + if ((val1 != 0) || (val2 != pattern)) /* see if pos A value changed */ + return (0); + else + return (1); +} + +/******************************************************** + * sdrc_init() - init the sdrc chip selects CS0 and CS1 + * - early init routines, called from flash or + * SRAM. + *******************************************************/ +void sdrc_init(void) +{ +#define EARLY_INIT 1 + /* only init up first bank here */ + do_sdrc_init(SDRC_CS0_OSET, EARLY_INIT); +} + +/************************************************************************* + * do_sdrc_init(): initialize the SDRAM for use. + * -called from low level code with stack only. + * -code sets up SDRAM timing and muxing for 2422 or 2420. + * -optimal settings can be placed here, or redone after i2c + * inspection of board info + * + * This is a bit ugly, but should handle all memory moduels + * used with the APOLLON. The first time though this code from s_init() + * we configure the first chip select. Later on we come back and + * will configure the 2nd chip select if it exists. + * + **************************************************************************/ +void do_sdrc_init(u32 offset, u32 early) +{ +} + +/***************************************************** + * gpmc_init(): init gpmc bus + * Init GPMC for x16, MuxMode (SDRAM in x32). + * This code can only be executed from SRAM or SDRAM. + *****************************************************/ +void gpmc_init(void) +{ + u32 mux = 0, mtype, mwidth, rev, tval; + + rev = get_cpu_rev(); + if (rev == CPU_2420_2422_ES1) + tval = 1; + else + tval = 0; /* disable bit switched meaning */ + + /* global settings */ + __raw_writel(0x10, GPMC_SYSCONFIG); /* smart idle */ + __raw_writel(0x0, GPMC_IRQENABLE); /* isr's sources masked */ + __raw_writel(tval, GPMC_TIMEOUT_CONTROL); /* timeout disable */ +#ifdef CFG_NAND_BOOT + __raw_writel(0x001, GPMC_CONFIG); /* set nWP, disable limited addr */ +#else + __raw_writel(0x111, GPMC_CONFIG); /* set nWP, disable limited addr */ +#endif + + /* discover bus connection from sysboot */ + if (is_gpmc_muxed() == GPMC_MUXED) + mux = BIT9; + mtype = get_gpmc0_type(); + mwidth = get_gpmc0_width(); + + /* setup cs0 */ + __raw_writel(0x0, GPMC_CONFIG7_0); /* disable current map */ + sdelay(1000); + +#ifdef CFG_NOR_BOOT + __raw_writel(APOLLON_24XX_GPMC_CONFIG1_3, GPMC_CONFIG1_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG2_3, GPMC_CONFIG2_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG3_3, GPMC_CONFIG3_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG4_3, GPMC_CONFIG4_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG5_3, GPMC_CONFIG5_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG6_3, GPMC_CONFIG6_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_3, GPMC_CONFIG7_0); #else + __raw_writel(APOLLON_24XX_GPMC_CONFIG1_0 | mux | mtype | mwidth, + GPMC_CONFIG1_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG2_0, GPMC_CONFIG2_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG3_0, GPMC_CONFIG3_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG4_0, GPMC_CONFIG4_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG5_0, GPMC_CONFIG5_0); + __raw_writel(APOLLON_24XX_GPMC_CONFIG6_0, GPMC_CONFIG6_0); + /* enable new mapping */ + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_0, GPMC_CONFIG7_0); +#endif + sdelay(2000); + + /* setup cs1 */ + __raw_writel(0, GPMC_CONFIG7_1); /* disable any mapping */ + sdelay(1000); + + __raw_writel(APOLLON_24XX_GPMC_CONFIG1_1, GPMC_CONFIG1_1); + __raw_writel(APOLLON_24XX_GPMC_CONFIG2_1, GPMC_CONFIG2_1); + __raw_writel(APOLLON_24XX_GPMC_CONFIG3_1, GPMC_CONFIG3_1); + __raw_writel(APOLLON_24XX_GPMC_CONFIG4_1, GPMC_CONFIG4_1); + __raw_writel(APOLLON_24XX_GPMC_CONFIG5_1, GPMC_CONFIG5_1); + __raw_writel(APOLLON_24XX_GPMC_CONFIG6_1, GPMC_CONFIG6_1); + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_1, GPMC_CONFIG7_1); + sdelay(2000); + + /* setup cs2 */ + __raw_writel(APOLLON_24XX_GPMC_CONFIG1_0 | mux | mtype | mwidth, + GPMC_CONFIG1_2); + /* It's same as cs 0 */ + __raw_writel(APOLLON_24XX_GPMC_CONFIG2_0, GPMC_CONFIG2_2); + __raw_writel(APOLLON_24XX_GPMC_CONFIG3_0, GPMC_CONFIG3_2); + __raw_writel(APOLLON_24XX_GPMC_CONFIG4_0, GPMC_CONFIG4_2); + __raw_writel(APOLLON_24XX_GPMC_CONFIG5_0, GPMC_CONFIG5_2); + __raw_writel(APOLLON_24XX_GPMC_CONFIG6_0, GPMC_CONFIG6_2); +#ifdef CFG_NOR_BOOT + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_0, GPMC_CONFIG7_2); +#else + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_2, GPMC_CONFIG7_2); +#endif + +#ifndef CFG_NOR_BOOT + /* setup cs3 */ + __raw_writel(0, GPMC_CONFIG7_3); /* disable any mapping */ + sdelay(1000); + + __raw_writel(APOLLON_24XX_GPMC_CONFIG1_3, GPMC_CONFIG1_3); + __raw_writel(APOLLON_24XX_GPMC_CONFIG2_3, GPMC_CONFIG2_3); + __raw_writel(APOLLON_24XX_GPMC_CONFIG3_3, GPMC_CONFIG3_3); + __raw_writel(APOLLON_24XX_GPMC_CONFIG4_3, GPMC_CONFIG4_3); + __raw_writel(APOLLON_24XX_GPMC_CONFIG5_3, GPMC_CONFIG5_3); + __raw_writel(APOLLON_24XX_GPMC_CONFIG6_3, GPMC_CONFIG6_3); + __raw_writel(APOLLON_24XX_GPMC_CONFIG7_3, GPMC_CONFIG7_3); +#endif + +#ifndef ASYNC_NOR + __raw_writew(0xaa, (APOLLON_CS3_BASE + 0xaaa)); + __raw_writew(0x55, (APOLLON_CS3_BASE + 0x554)); + __raw_writew(0xc0, (APOLLON_CS3_BASE | SYNC_NOR_VALUE)); +#endif + sdelay(2000); +} diff --git a/board/apollon/mem.h b/board/apollon/mem.h new file mode 100644 index 0000000..aed7e1d --- /dev/null +++ b/board/apollon/mem.h @@ -0,0 +1,170 @@ +/* + * (C) Copyright 2005-2007 + * Samsung Electronics, + * Kyungmin Park <kyungmin.park@samsung.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 + */ + +#ifndef _APOLLON_OMAP24XX_MEM_H_ +#define _APOLLON_OMAP24XX_MEM_H_ + +/* Slower full frequency range default timings for x32 operation*/ +#define APOLLON_2420_SDRC_SHARING 0x00000100 +#define APOLLON_2420_SDRC_MDCFG_0_DDR 0x00d04011 +#define APOLLON_2420_SDRC_MR_0_DDR 0x00000032 + +/* optimized timings good for current shipping parts */ +#define APOLLON_242X_SDRC_ACTIM_CTRLA_0_100MHz 0x4A59B485 +#define APOLLON_242X_SDRC_ACTIM_CTRLB_0_100MHz 0x0000000C + +#define APOLLON_242X_SDRC_ACTIM_CTRLA_0_166MHz 0x7BA35907 +#define APOLLON_242X_SDRC_ACTIM_CTRLB_0_166MHz 0x00000013 + +#define APOLLON_242X_SDRC_RFR_CTRL_100MHz 0x00030001 +#define APOLLON_242X_SDRC_RFR_CTRL_166MHz 0x00044C01 + +#define APOLLON_242x_SDRC_DLLAB_CTRL_100MHz 0x00007306 +#define APOLLON_242x_SDRC_DLLAB_CTRL_166MHz 0x00000506 + +#ifdef PRCM_CONFIG_I +# define APOLLON_2420_SDRC_ACTIM_CTRLA_0 APOLLON_242X_SDRC_ACTIM_CTRLA_0_166MHz +# define APOLLON_2420_SDRC_ACTIM_CTRLB_0 APOLLON_242X_SDRC_ACTIM_CTRLB_0_166MHz +# define APOLLON_2420_SDRC_RFR_CTRL APOLLON_242X_SDRC_RFR_CTRL_166MHz +# define APOLLON_2420_SDRC_DLLAB_CTRL APOLLON_242x_SDRC_DLLAB_CTRL_166MHz +#elif PRCM_CONFIG_II +# define APOLLON_2420_SDRC_ACTIM_CTRLA_0 APOLLON_242X_SDRC_ACTIM_CTRLA_0_100MHz +# define APOLLON_2420_SDRC_ACTIM_CTRLB_0 APOLLON_242X_SDRC_ACTIM_CTRLB_0_100MHz +# define APOLLON_2420_SDRC_RFR_CTRL APOLLON_242X_SDRC_RFR_CTRL_100MHz +# define APOLLON_2420_SDRC_DLLAB_CTRL APOLLON_242x_SDRC_DLLAB_CTRL_100MHz +#endif + +/* GPMC settings */ +#ifdef PRCM_CONFIG_I /* L3 at 165MHz */ +/* CS0: OneNAND */ +# define APOLLON_24XX_GPMC_CONFIG1_0 0x00000001 +# define APOLLON_24XX_GPMC_CONFIG2_0 0x000c1000 +# define APOLLON_24XX_GPMC_CONFIG3_0 0x00030400 +# define APOLLON_24XX_GPMC_CONFIG4_0 0x0b841006 +# define APOLLON_24XX_GPMC_CONFIG5_0 0x020f0c11 +# define APOLLON_24XX_GPMC_CONFIG6_0 0x00000000 +# define APOLLON_24XX_GPMC_CONFIG7_0 (0x00000e40|(APOLLON_CS0_BASE >> 24)) + +/* CS1: Ethernet */ +# define APOLLON_24XX_GPMC_CONFIG1_1 0x00011200 +# define APOLLON_24XX_GPMC_CONFIG2_1 0x001F1F01 +# define APOLLON_24XX_GPMC_CONFIG3_1 0x00080803 +# define APOLLON_24XX_GPMC_CONFIG4_1 0x1C0b1C0a +# define APOLLON_24XX_GPMC_CONFIG5_1 0x041F1F1F +# define APOLLON_24XX_GPMC_CONFIG6_1 0x000004C4 +# define APOLLON_24XX_GPMC_CONFIG7_1 (0x00000F40|(APOLLON_CS1_BASE >> 24)) + +/* CS2: OneNAND */ +/* It's same as CS0 */ +# define APOLLON_24XX_GPMC_CONFIG7_2 (0x00000e40|(APOLLON_CS2_BASE >> 24)) + +/* CS3: NOR */ +#ifdef ASYNC_NOR +# define APOLLON_24XX_GPMC_CONFIG1_3 0x00021201 +# define APOLLON_24XX_GPMC_CONFIG2_3 0x00121601 +# define APOLLON_24XX_GPMC_CONFIG3_3 0x00040401 +# define APOLLON_24XX_GPMC_CONFIG4_3 0x12061605 +# define APOLLON_24XX_GPMC_CONFIG5_3 0x01151317 +#else +# define SYNC_NOR_VALUE 0x24aaa +# define APOLLON_24XX_GPMC_CONFIG1_3 0xe5011211 +# define APOLLON_24XX_GPMC_CONFIG2_3 0x00090b01 +# define APOLLON_24XX_GPMC_CONFIG3_3 0x00020201 +# define APOLLON_24XX_GPMC_CONFIG4_3 0x09030b03 +# define APOLLON_24XX_GPMC_CONFIG5_3 0x010a0a0c +#endif /* ASYNC_NOR */ +# define APOLLON_24XX_GPMC_CONFIG6_3 0x00000000 +# define APOLLON_24XX_GPMC_CONFIG7_3 (0x00000e40|(APOLLON_CS3_BASE >> 24)) +#endif /* endif PRCM_CONFIG_I */ + +#ifdef PRCM_CONFIG_II /* L3 at 100MHz */ +/* CS0: OneNAND */ +# define APOLLON_24XX_GPMC_CONFIG1_0 0x00000001 +# define APOLLON_24XX_GPMC_CONFIG2_0 0x00081080 +# define APOLLON_24XX_GPMC_CONFIG3_0 0x00030300 +# define APOLLON_24XX_GPMC_CONFIG4_0 0x08041004 +# define APOLLON_24XX_GPMC_CONFIG5_0 0x020b0910 +# define APOLLON_24XX_GPMC_CONFIG6_0 0x00000000 +# define APOLLON_24XX_GPMC_CONFIG7_0 (0x00000C40|(APOLLON_CS0_BASE >> 24)) + +/* CS1: ethernet */ +# define APOLLON_24XX_GPMC_CONFIG1_1 0x00401203 +# define APOLLON_24XX_GPMC_CONFIG2_1 0x001F1F01 +# define APOLLON_24XX_GPMC_CONFIG3_1 0x00080803 +# define APOLLON_24XX_GPMC_CONFIG4_1 0x1C091C09 +# define APOLLON_24XX_GPMC_CONFIG5_1 0x041F1F1F +# define APOLLON_24XX_GPMC_CONFIG6_1 0x000004C4 +# define APOLLON_24XX_GPMC_CONFIG7_1 (0x00000F40|(APOLLON_CS1_BASE >> 24)) + +/* CS2: OneNAND */ +/* It's same as CS0 */ +# define APOLLON_24XX_GPMC_CONFIG7_2 (0x00000e40|(APOLLON_CS2_BASE >> 24)) + +/* CS3: NOR */ +#define ASYNC_NOR +#ifdef ASYNC_NOR +# define APOLLON_24XX_GPMC_CONFIG1_3 0x00021201 +# define APOLLON_24XX_GPMC_CONFIG2_3 0x00121601 +# define APOLLON_24XX_GPMC_CONFIG3_3 0x00040401 +# define APOLLON_24XX_GPMC_CONFIG4_3 0x12061605 +# define APOLLON_24XX_GPMC_CONFIG5_3 0x01151317 +#else +# define SYNC_NOR_VALUE 0x24aaa +# define APOLLON_24XX_GPMC_CONFIG1_3 0xe1001202 +# define APOLLON_24XX_GPMC_CONFIG2_3 0x00151501 +# define APOLLON_24XX_GPMC_CONFIG3_3 0x00050501 +# define APOLLON_24XX_GPMC_CONFIG4_3 0x0e070e07 +# define APOLLON_24XX_GPMC_CONFIG5_3 0x01131F1F +#endif /* ASYNC_NOR */ +# define APOLLON_24XX_GPMC_CONFIG6_3 0x00000000 +# define APOLLON_24XX_GPMC_CONFIG7_3 (0x00000C40|(APOLLON_CS3_BASE >> 24)) +#endif /* endif PRCM_CONFIG_II */ + +#ifdef PRCM_CONFIG_III /* L3 at 133MHz */ +# ifdef CFG_NAND_BOOT +# define APOLLON_24XX_GPMC_CONFIG1_0 0x0 +# define APOLLON_24XX_GPMC_CONFIG2_0 0x00141400 +# define APOLLON_24XX_GPMC_CONFIG3_0 0x00141400 +# define APOLLON_24XX_GPMC_CONFIG4_0 0x0F010F01 +# define APOLLON_24XX_GPMC_CONFIG5_0 0x010C1414 +# define APOLLON_24XX_GPMC_CONFIG6_0 0x00000A80 +# else /* NOR boot */ +# define APOLLON_24XX_GPMC_CONFIG1_0 0x3 +# define APOLLON_24XX_GPMC_CONFIG2_0 0x00151501 +# define APOLLON_24XX_GPMC_CONFIG3_0 0x00060602 +# define APOLLON_24XX_GPMC_CONFIG4_0 0x10081008 +# define APOLLON_24XX_GPMC_CONFIG5_0 0x01131F1F +# define APOLLON_24XX_GPMC_CONFIG6_0 0x000004c4 +# endif /* endif CFG_NAND_BOOT */ +# define APOLLON_24XX_GPMC_CONFIG7_0 (0x00000C40|(APOLLON_CS0_BASE >> 24)) +# define APOLLON_24XX_GPMC_CONFIG1_1 0x00011000 +# define APOLLON_24XX_GPMC_CONFIG2_1 0x001f1f01 +# define APOLLON_24XX_GPMC_CONFIG3_1 0x00080803 +# define APOLLON_24XX_GPMC_CONFIG4_1 0x1C091C09 +# define APOLLON_24XX_GPMC_CONFIG5_1 0x041f1F1F +# define APOLLON_24XX_GPMC_CONFIG6_1 0x000004C4 +# define APOLLON_24XX_GPMC_CONFIG7_1 (0x00000F40|(APOLLON_CS1_BASE >> 24)) +#endif /* endif CFG_PRCM_III */ + +#endif /* endif _APOLLON_OMAP24XX_MEM_H_ */ diff --git a/board/apollon/sys_info.c b/board/apollon/sys_info.c new file mode 100644 index 0000000..60c35b4 --- /dev/null +++ b/board/apollon/sys_info.c @@ -0,0 +1,408 @@ +/* + * (C) Copyright 2005-2007 + * Samsung Electronics, + * Kyungmin Park <kyungmin.park@samsung.com> + * + * Derived from omap2420 + * + * 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/omap2420.h> +#include <asm/io.h> +#include <asm/arch/bits.h> +#include <asm/arch/mem.h> /* get mem tables */ +#include <asm/arch/sys_proto.h> +#include <asm/arch/sys_info.h> +#include <i2c.h> + +/************************************************************************** + * get_prod_id() - get id info from chips + ***************************************************************************/ +static u32 get_prod_id(void) +{ + u32 p; + p = __raw_readl(PRODUCTION_ID); /* get production ID */ + return ((p & CPU_242X_PID_MASK) >> 16); +} +/************************************************************************** + * get_cpu_type() - low level get cpu type + * - no C globals yet. + * - just looking to say if this is a 2422 or 2420 or ... + * - to start with we will look at switch settings.. + * - 2422 id's same as 2420 for ES1 will rely on H4 board characteristics + * (mux for 2420, non-mux for 2422). + ***************************************************************************/ +u32 get_cpu_type(void) +{ + u32 v; + + switch (get_prod_id()) { + case 1:; /* 2420 */ + case 2: + return (CPU_2420); + break; /* 2420 pop */ + case 4: + return (CPU_2422); + break; + case 8: + return (CPU_2423); + break; + default: + break; /* early 2420/2422's unmarked */ + } + + v = __raw_readl(TAP_IDCODE_REG); + v &= CPU_24XX_ID_MASK; + if (v == CPU_2420_CHIPID) { /* currently 2420 and 2422 have same id */ + if (is_gpmc_muxed() == GPMC_MUXED) /* if mux'ed */ + return (CPU_2420); + else + return (CPU_2422); + } else + return (CPU_2420); /* don't know, say 2420 */ +} + +/****************************************** + * get_cpu_rev(void) - extract version info + ******************************************/ +u32 get_cpu_rev(void) +{ + u32 v; + v = __raw_readl(TAP_IDCODE_REG); + v = v >> 28; + return (v + 1); /* currently 2422 and 2420 match up */ +} + +/**************************************************** + * is_mem_sdr() - return 1 if mem type in use is SDR + ****************************************************/ +u32 is_mem_sdr(void) +{ + volatile u32 *burst = (volatile u32 *)(SDRC_MR_0 + SDRC_CS0_OSET); + if (*burst == H4_2420_SDRC_MR_0_SDR) + return (1); + return (0); +} + +/*********************************************************** + * get_mem_type() - identify type of mDDR part used. + * 2422 uses stacked DDR, 2 parts CS0/CS1. + * 2420 may have 1 or 2, no good way to know...only init 1... + * when eeprom data is up we can select 1 more. + *************************************************************/ +u32 get_mem_type(void) +{ + u32 cpu, sdr = is_mem_sdr(); + + cpu = get_cpu_type(); + if (cpu == CPU_2422 || cpu == CPU_2423) + return (DDR_STACKED); + + if (get_prod_id() == 0x2) + return (XDR_POP); + + if (get_board_type() == BOARD_H4_MENELAUS) + if (sdr) + return (SDR_DISCRETE); + else + return (DDR_COMBO); + else if (sdr) /* SDP + SDR kit */ + return (SDR_DISCRETE); + else + return (DDR_DISCRETE); /* origional SDP */ +} + +/********************************************************************** + * + * get_cs0_size() - get size of chip select 0/1 + ************************************************************************/ +u32 get_sdr_cs_size(u32 offset) +{ + u32 size; + size = __raw_readl(SDRC_MCFG_0 + offset) >> 8; /* get ram size field */ + size &= 0x2FF; /* remove unwanted bits */ + size *= SZ_2M; /* find size in MB */ + return (size); +} + +/********************************************************************** + * + * get_board_type() - get board type based on current production stats. + * --- NOTE: 2 I2C EEPROMs will someday be populated with proper info. + * when they are available we can get info from there. This should + * be correct of all known boards up until today. + ************************************************************************/ +u32 get_board_type(void) +{ +#if 0 + if (i2c_probe(I2C_MENELAUS) == 0) + return (BOARD_H4_MENELAUS); + else +#endif + return (BOARD_H4_SDP); +} + +/****************************************************************** + * get_sysboot_value() - get init word settings (dip switch on h4) +******************************************************************/ +inline u32 get_sysboot_value(void) +{ + return (0x00000FFF & __raw_readl(CONTROL_STATUS)); +} + +/*************************************************************************** + * get_gpmc0_base() - Return current address hardware will be + * fetching from. The below effectively gives what is correct, its a bit + * mis-leading compared to the TRM. For the most general case the mask + * needs to be also taken into account this does work in practice. + * - for u-boot we currently map: + * -- 0 to nothing, + * -- 4 to flash + * -- 8 to enent + * -- c to wifi + ***************************************************************************/ +u32 get_gpmc0_base(void) +{ + u32 b; + + b = __raw_readl(GPMC_CONFIG7_0); + b &= 0x1F; /* keep base [5:0] */ + b = b << 24; /* ret 0x0b000000 */ + return (b); +} + +/***************************************************************** + * is_gpmc_muxed() - tells if address/data lines are multiplexed + *****************************************************************/ +u32 is_gpmc_muxed(void) +{ + u32 mux; + mux = get_sysboot_value(); + if ((mux & (BIT0 | BIT1 | BIT2 | BIT3)) == (BIT0 | BIT2 | BIT3)) + return (GPMC_MUXED); /* NAND Boot mode */ + if (mux & BIT1) /* if mux'ed */ + return (GPMC_MUXED); + else + return (GPMC_NONMUXED); +} + +/************************************************************************ + * get_gpmc0_type() - read sysboot lines to see type of memory attached + ************************************************************************/ +u32 get_gpmc0_type(void) +{ + u32 type; + type = get_sysboot_value(); + if ((type & (BIT3 | BIT2)) == (BIT3 | BIT2)) + return (TYPE_NAND); + else + return (TYPE_NOR); +} + +/******************************************************************* + * get_gpmc0_width() - See if bus is in x8 or x16 (mainly for nand) + *******************************************************************/ +u32 get_gpmc0_width(void) +{ + u32 width; + width = get_sysboot_value(); + if ((width & 0xF) == (BIT3 | BIT2)) + return (WIDTH_8BIT); + else + return (WIDTH_16BIT); +} + +/********************************************************************* + * wait_on_value() - common routine to allow waiting for changes in + * volatile regs. + *********************************************************************/ +u32 wait_on_value(u32 read_bit_mask, u32 match_value, u32 read_addr, +u32 bound) { + u32 i = 0, val; + do { + ++i; + val = __raw_readl(read_addr) & read_bit_mask; + if (val == match_value) + return (1); + if (i == bound) + return (0); + } while (1); +} + +/********************************************************************* + * display_board_info() - print banner with board info. + *********************************************************************/ +void display_board_info(u32 btype) +{ + char cpu_2420[] = "2420"; /* cpu type */ + char cpu_2422[] = "2422"; + char cpu_2423[] = "2423"; + char db_men[] = "Menelaus"; /* board type */ + char db_ip[] = "IP"; + char mem_sdr[] = "mSDR"; /* memory type */ + char mem_ddr[] = "mDDR"; + char t_tst[] = "TST"; /* security level */ + char t_emu[] = "EMU"; + char t_hs[] = "HS"; + char t_gp[] = "GP"; + char unk[] = "?"; + + char *cpu_s, *db_s, *mem_s, *sec_s; + u32 cpu, rev, sec; + + rev = get_cpu_rev(); + cpu = get_cpu_type(); + sec = get_device_type(); + + if (is_mem_sdr()) + mem_s = mem_sdr; + else + mem_s = mem_ddr; + + if (cpu == CPU_2423) + cpu_s = cpu_2423; + else if (cpu == CPU_2422) + cpu_s = cpu_2422; + else + cpu_s = cpu_2420; + + if (btype == BOARD_H4_MENELAUS) + db_s = db_men; + else + db_s = db_ip; + + switch (sec) { + case TST_DEVICE: + sec_s = t_tst; + break; + case EMU_DEVICE: + sec_s = t_emu; + break; + case HS_DEVICE: + sec_s = t_hs; + break; + case GP_DEVICE: + sec_s = t_gp; + break; + default: + sec_s = unk; + } + + printf("OMAP%s-%s revision %d\n", cpu_s, sec_s, rev - 1); + printf("Samsung Apollon SDP Base Board + %s \n", mem_s); } + +/************************************************************************* + * get_board_rev() - setup to pass kernel board revision information + * 0 = 242x IP platform (first 2xx boards) + * 1 = 242x Menelaus platfrom. + *************************************************************************/ +u32 get_board_rev(void) +{ + u32 rev = 0; + u32 btype = get_board_type(); + + if (btype == BOARD_H4_MENELAUS) { + rev = 1; + } + return (rev); +} + +/******************************************************** + * get_base(); get upper addr of current execution + *******************************************************/ +u32 get_base(void) +{ + u32 val; + __asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory"); + val &= 0xF0000000; + val >>= 28; + return (val); +} + +/******************************************************** + * get_base2(); get 2upper addr of current execution + *******************************************************/ +u32 get_base2(void) +{ + u32 val; + __asm__ __volatile__("mov %0, pc \n":"=r"(val)::"memory"); + val &= 0xFF000000; + val >>= 24; + return (val); +} + +/******************************************************** + * running_in_flash() - tell if currently running in + * flash. + *******************************************************/ +u32 running_in_flash(void) +{ + if (get_base() < 4) + return (1); /* in flash */ + return (0); /* running in SRAM or SDRAM */ +} + +/******************************************************** + * running_in_sram() - tell if currently running in + * sram. + *******************************************************/ +u32 running_in_sram(void) +{ + if (get_base() == 4) + return (1); /* in SRAM */ + return (0); /* running in FLASH or SDRAM */ +} + +/******************************************************** + * running_in_sdram() - tell if currently running in + * flash. + *******************************************************/ +u32 running_in_sdram(void) +{ + if (get_base() > 4) + return (1); /* in sdram */ + return (0); /* running in SRAM or FLASH */ +} + +/************************************************************* + * running_from_internal_boot() - am I a signed NOR image. + *************************************************************/ +u32 running_from_internal_boot(void) +{ + u32 v, base; + + v = get_sysboot_value() & BIT3; + base = get_base2(); + /* if running at mask rom flash address and + * sysboot3 says this was an internal boot + */ + if ((base == 0x08) && v) + return (1); + else + return (0); +} + +/************************************************************* + * get_device_type(): tell if GP/HS/EMU/TST + *************************************************************/ +u32 get_device_type(void) +{ + int mode; + mode = __raw_readl(CONTROL_STATUS) & (BIT10 | BIT9 | BIT8); + return (mode >>= 8); +} diff --git a/board/apollon/u-boot.lds b/board/apollon/u-boot.lds new file mode 100644 index 0000000..686d86b --- /dev/null +++ b/board/apollon/u-boot.lds @@ -0,0 +1,64 @@ +/* + * + * Copyright (C) 2005-2007 Samsung Electronics + * Kyungin Park <kyugnmin.park@samsung.com> + * + * January 2004 - Changed to support H4 device + * Copyright (c) 2004 Texas Instruments + * + * (C) Copyright 2002 + * Gary Jennejohn, DENX Software Engineering, <gj@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 + */ + +OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") +OUTPUT_ARCH(arm) +ENTRY(_start) +SECTIONS +{ + . = 0x00000000; + + . = ALIGN(4); + .text : + { + cpu/arm1136/start.o (.text) + *(.text) + } + + . = ALIGN(4); + .rodata : { *(.rodata) } + + . = ALIGN(4); + .data : { *(.data) } + + . = ALIGN(4); + .got : { *(.got) } + + . = .; + __u_boot_cmd_start = .; + .u_boot_cmd : { *(.u_boot_cmd) } + __u_boot_cmd_end = .; + + . = ALIGN(4); + __bss_start = .; + .bss : { *(.bss) } + _end = .; +} + |