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author | Wolfgang Denk <wd@denx.de> | 2011-08-04 23:05:07 +0200 |
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committer | Wolfgang Denk <wd@denx.de> | 2011-08-04 23:05:07 +0200 |
commit | fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b (patch) | |
tree | dbde38784fb8b48c7f9b14e70a947fab3a1f3bab /arch/arm/cpu/armv7/omap-common/spl.c | |
parent | 01b0f50060923e89693bf155c677e4f665916b3f (diff) | |
parent | b608b95753873a5073f550cca002c4bebf1a18f5 (diff) | |
download | u-boot-imx-fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b.zip u-boot-imx-fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b.tar.gz u-boot-imx-fb6440ee9b110b759ef61fd80bbd0df1bbf0f37b.tar.bz2 |
Merge branch 'master' of git://git.denx.de/u-boot-arm
* 'master' of git://git.denx.de/u-boot-arm:
drivers/rtc: add Marvell Integrated RTC
Armada100: Add Board Support for Marvell GuruPlug-Display
Armada100: MFP macro naming correction
arm: auto gen asm-offsets.h for mb86r0x
spear: fix build errors for spear3xx/spear600 platforms
cosmetic: arm: lib/board.c: Coding Style cleanup
ARM: versatile: fix board support
SMDKV310: Enable device tree support
SMDKV310: MMC_SPL: Fix building when using "make O="
arm: a320: enable tagged list support
arm: a320: fix multiline comment style
ARMv7: u8500_href: Add missing header to fix compiler warning
Removed unused define, CONFIG_ARMV7.
avr32: add grasshopper (ICnova AP7000) board
AT91/SPI: fix atmel_dataflash_spi.c to allow building without warnings
MAKEALL: remove AT91 boards that are in boards.cfg
AT91: Makes AT91SAM9263-EK build correctly against u-boot-atmel/master
AT91: Makes AT91SAM9263 SoC build correctly against u-boot-atmel/master
AT91: Board fix for AT91SAM9261-EK
AT91: SoC fix at91sam9261_matrix.h
AT91: Makes AT91SAM9RL-EK build correctly against u-boot-atmel/master
AT91: Makes AT91SAM9RL SoC build correctly against u-boot-atmel/master
AT91: change common at91sam9261 files to compile with new scheme
AT91: fix mistake in at91sam9260_devices.c(spi1_hw_init)
a/a/c/arm920t/at91/reset.c: drop obsolete CONFIG_AT91RM9200_USART
README: fix arm920t/at91 path
net/eth.c: drop obsolete at91rm9200 support
README.at91-soc: remove AT91(RM9200) joining notice
a/a/c/arm920t/cpu.c: remove CONFIG_AT91_LEGACY warning
MAKEALL: remove obsolete at91rm9200 soc
ARM: remove obsolete at91rm9200
omap4: clock init support for omap4460
omap4: support TPS programming
omap: reuse omap3 gpio support in omap4
omap4: sdram init changes for omap4460
omap4: add omap4460 revision detection
mkimage: Add OMAP boot image support
omap: add MMC and FAT support to SPL
omap: add basic SPL support
armv7: start.S: fixes and enhancements for SPL
omap4: automatic sdram detection
omap4: calculate EMIF register values
omap4: add sdram init support
omap4: add clock support
omap4: add OMAP4430 revision check
omap4: cleanup pin mux data
omap4: utility function to identify the context of hw init
DA8xx: fix LPSC constants
DA8xx: switch an enum to defines for consistency
DA8xx: add MMC/SD controller addresses
DaVinci EMAC: declare function for all DA8xx CPUs
DA8xx: add generic GPIO driver
DaVinci: rename gpio_defs.h to gpio.h
omap3evm: eth: Include functions only when necessary
omap3evm: Update ethernet reset sequence for Rev.G board
omap3evm: eth: split function setup_net_chip
omap3: Include array definition only when it is used
omap730p2: fix build breaks
omap2420h4: fix build breaks
omap1610inn: fix build breaks
omap1510inn: fix build breaks
omap5912osk: fix build breaks
omap1610h2: fix build breaks
Diffstat (limited to 'arch/arm/cpu/armv7/omap-common/spl.c')
-rw-r--r-- | arch/arm/cpu/armv7/omap-common/spl.c | 272 |
1 files changed, 272 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/omap-common/spl.c b/arch/arm/cpu/armv7/omap-common/spl.c new file mode 100644 index 0000000..d177652 --- /dev/null +++ b/arch/arm/cpu/armv7/omap-common/spl.c @@ -0,0 +1,272 @@ +/* + * (C) Copyright 2010 + * Texas Instruments, <www.ti.com> + * + * Aneesh V <aneesh@ti.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 <common.h> +#include <asm/u-boot.h> +#include <asm/utils.h> +#include <asm/arch/sys_proto.h> +#include <mmc.h> +#include <fat.h> +#include <timestamp_autogenerated.h> +#include <version_autogenerated.h> +#include <asm/omap_common.h> +#include <asm/arch/mmc_host_def.h> +#include <i2c.h> +#include <image.h> + +DECLARE_GLOBAL_DATA_PTR; + +/* Define global data structure pointer to it*/ +static gd_t gdata __attribute__ ((section(".data"))); +static bd_t bdata __attribute__ ((section(".data"))); +static const char *image_name; +static u8 image_os; +static u32 image_load_addr; +static u32 image_entry_point; +static u32 image_size; + +inline void hang(void) +{ + puts("### ERROR ### Please RESET the board ###\n"); + for (;;) + ; +} + +void board_init_f(ulong dummy) +{ + /* + * We call relocate_code() with relocation target same as the + * CONFIG_SYS_SPL_TEXT_BASE. This will result in relocation getting + * skipped. Instead, only .bss initialization will happen. That's + * all we need + */ + debug(">>board_init_f()\n"); + relocate_code(CONFIG_SPL_STACK, &gdata, CONFIG_SPL_TEXT_BASE); +} + +#ifdef CONFIG_GENERIC_MMC +int board_mmc_init(bd_t *bis) +{ + switch (omap_boot_device()) { + case BOOT_DEVICE_MMC1: + omap_mmc_init(0); + break; + case BOOT_DEVICE_MMC2: + omap_mmc_init(1); + break; + } + return 0; +} +#endif + +static void parse_image_header(const struct image_header *header) +{ + u32 header_size = sizeof(struct image_header); + + if (__be32_to_cpu(header->ih_magic) == IH_MAGIC) { + image_size = __be32_to_cpu(header->ih_size) + header_size; + image_entry_point = __be32_to_cpu(header->ih_load); + /* Load including the header */ + image_load_addr = image_entry_point - header_size; + image_os = header->ih_os; + image_name = (const char *)&header->ih_name; + debug("spl: payload image: %s load addr: 0x%x size: %d\n", + image_name, image_load_addr, image_size); + } else { + /* Signature not found - assume u-boot.bin */ + printf("mkimage signature not found - ih_magic = %x\n", + header->ih_magic); + puts("Assuming u-boot.bin ..\n"); + /* Let's assume U-Boot will not be more than 200 KB */ + image_size = 200 * 1024; + image_entry_point = CONFIG_SYS_TEXT_BASE; + image_load_addr = CONFIG_SYS_TEXT_BASE; + image_os = IH_OS_U_BOOT; + image_name = "U-Boot"; + } +} + +static void mmc_load_image_raw(struct mmc *mmc) +{ + u32 image_size_sectors, err; + const struct image_header *header; + + header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - + sizeof(struct image_header)); + + /* read image header to find the image size & load address */ + err = mmc->block_dev.block_read(0, + CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, 1, + (void *)header); + + if (err <= 0) + goto end; + + parse_image_header(header); + + /* convert size to sectors - round up */ + image_size_sectors = (image_size + MMCSD_SECTOR_SIZE - 1) / + MMCSD_SECTOR_SIZE; + + /* Read the header too to avoid extra memcpy */ + err = mmc->block_dev.block_read(0, + CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR, + image_size_sectors, (void *)image_load_addr); + +end: + if (err <= 0) { + printf("spl: mmc blk read err - %d\n", err); + hang(); + } +} + +static void mmc_load_image_fat(struct mmc *mmc) +{ + s32 err; + struct image_header *header; + + header = (struct image_header *)(CONFIG_SYS_TEXT_BASE - + sizeof(struct image_header)); + + err = fat_register_device(&mmc->block_dev, + CONFIG_SYS_MMC_SD_FAT_BOOT_PARTITION); + if (err) { + printf("spl: fat register err - %d\n", err); + hang(); + } + + err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, + (u8 *)header, sizeof(struct image_header)); + if (err <= 0) + goto end; + + parse_image_header(header); + + err = file_fat_read(CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, + (u8 *)image_load_addr, 0); + +end: + if (err <= 0) { + printf("spl: error reading image %s, err - %d\n", + CONFIG_SPL_FAT_LOAD_PAYLOAD_NAME, err); + hang(); + } +} + +static void mmc_load_image(void) +{ + struct mmc *mmc; + int err; + u32 boot_mode; + + mmc_initialize(gd->bd); + /* We register only one device. So, the dev id is always 0 */ + mmc = find_mmc_device(0); + if (!mmc) { + puts("spl: mmc device not found!!\n"); + hang(); + } + + err = mmc_init(mmc); + if (err) { + printf("spl: mmc init failed: err - %d\n", err); + hang(); + } + + boot_mode = omap_boot_mode(); + if (boot_mode == MMCSD_MODE_RAW) { + debug("boot mode - RAW\n"); + mmc_load_image_raw(mmc); + } else if (boot_mode == MMCSD_MODE_FAT) { + debug("boot mode - FAT\n"); + mmc_load_image_fat(mmc); + } else { + puts("spl: wrong MMC boot mode\n"); + hang(); + } +} + +void jump_to_image_no_args(void) +{ + typedef void (*image_entry_noargs_t)(void)__attribute__ ((noreturn)); + image_entry_noargs_t image_entry = + (image_entry_noargs_t) image_entry_point; + + image_entry(); +} + +void jump_to_image_no_args(void) __attribute__ ((noreturn)); +void board_init_r(gd_t *id, ulong dummy) +{ + u32 boot_device; + debug(">>spl:board_init_r()\n"); + + timer_init(); + i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); + + boot_device = omap_boot_device(); + debug("boot device - %d\n", boot_device); + switch (boot_device) { + case BOOT_DEVICE_MMC1: + case BOOT_DEVICE_MMC2: + mmc_load_image(); + break; + default: + printf("SPL: Un-supported Boot Device - %d!!!\n", boot_device); + hang(); + break; + } + + switch (image_os) { + case IH_OS_U_BOOT: + debug("Jumping to U-Boot\n"); + jump_to_image_no_args(); + break; + default: + puts("Unsupported OS image.. Jumping nevertheless..\n"); + jump_to_image_no_args(); + } +} + +void preloader_console_init(void) +{ + const char *u_boot_rev = U_BOOT_VERSION; + char rev_string_buffer[50]; + + gd = &gdata; + gd->bd = &bdata; + gd->flags |= GD_FLG_RELOC; + gd->baudrate = CONFIG_BAUDRATE; + + setup_clocks_for_console(); + serial_init(); /* serial communications setup */ + + /* Avoid a second "U-Boot" coming from this string */ + u_boot_rev = &u_boot_rev[7]; + + printf("\nU-Boot SPL %s (%s - %s)\n", u_boot_rev, U_BOOT_DATE, + U_BOOT_TIME); + omap_rev_string(rev_string_buffer); + printf("Texas Instruments %s\n", rev_string_buffer); +} |