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driver: Add support of image load for MMC & SPI in SPL

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Add support of loading image, binary for MMC and SPI during SPL boot.

Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Reviewed-by: York Sun <yorksun@freescale.com>
This commit is contained in:
Prabhakar Kushwaha 2014-04-08 19:13:22 +05:30 committed by York Sun
parent e278ddcd7f
commit 1eaa742d85
4 changed files with 42 additions and 0 deletions
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26
drivers/mmc/fsl_esdhc_spl.c
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@ -19,6 +19,32 @@
#define MBRDBR_BOOT_SIG_AA 0x1ff
#define CONFIG_CFG_DATA_SECTOR 0
void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst)
{
uint blk_start, blk_cnt, err;
struct mmc *mmc = find_mmc_device(0);
if (!mmc) {
puts("spl: mmc device not found!!\n");
hang();
}
if (mmc_init(mmc)) {
puts("MMC init failed\n");
return;
}
blk_start = ALIGN(offs, mmc->read_bl_len) / mmc->read_bl_len;
blk_cnt = ALIGN(size, mmc->read_bl_len) / mmc->read_bl_len;
err = mmc->block_dev.block_read(0, blk_start, blk_cnt, vdst);
if (err != blk_cnt) {
puts("spl: mmc read failed!!\n");
hang();
}
}
/*
* The main entry for mmc booting. It's necessary that SDRAM is already
* configured and available since this code loads the main U-Boot image

14
drivers/mtd/spi/fsl_espi_spl.c
View File

@ -12,6 +12,20 @@
#define ESPI_BOOT_IMAGE_ADDR 0x50
#define CONFIG_CFG_DATA_SECTOR 0
void spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst)
{
struct spi_flash *flash;
flash = spi_flash_probe(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
if (flash == NULL) {
puts("\nspi_flash_probe failed");
hang();
}
spi_flash_read(flash, offs, size, vdst);
}
/*
* The main entry for SPI booting. It's necessary that SDRAM is already
* configured and available since this code loads the main U-Boot image

1
include/fsl_esdhc.h
View File

@ -187,5 +187,6 @@ static inline int fsl_esdhc_mmc_init(bd_t *bis) { return -ENOSYS; }
static inline void fdt_fixup_esdhc(void *blob, bd_t *bd) {}
#endif /* CONFIG_FSL_ESDHC */
void __noreturn mmc_boot(void);
void mmc_spl_load_image(uint32_t offs, unsigned int size, void *vdst);
#endif /* __FSL_ESDHC_H__ */

1
include/spi_flash.h
View File

@ -158,5 +158,6 @@ static inline int spi_flash_erase(struct spi_flash *flash, u32 offset,
}
void spi_boot(void) __noreturn;
void spi_spl_load_image(uint32_t offs, unsigned int size, void *vdst);
#endif /* _SPI_FLASH_H_ */