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u-boot-brain
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spl: sata: support U-Boot load from raw sata disk 

Support load of the U-Boot image from raw SATA disk sector. This is
equivalent to load from MMC raw sector.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
This commit is contained in:
Baruch Siach 2019-07-14 17:54:21 +03:00 committed by Tom Rini
parent 146ce6474d
commit 60ca969a7a
2 changed files with 48 additions and 0 deletions
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14
common/spl/Kconfig
View File

@ -918,6 +918,20 @@ config SPL_SATA_SUPPORT
expense and power consumption. This enables loading from SATA
using a configured device.
config SPL_SATA_RAW_U_BOOT_USE_SECTOR
bool "SATA raw mode: by sector"
depends on SPL_SATA_SUPPORT
help
Use sector number for specifying U-Boot location on SATA disk in
raw mode.
config SPL_SATA_RAW_U_BOOT_SECTOR
hex "Sector on the SATA disk to load U-Boot from"
depends on SPL_SATA_RAW_U_BOOT_USE_SECTOR
help
Sector on the SATA disk to load U-Boot from, when the SATA disk is being
used in raw mode. Units: SATA disk sectors (1 sector = 512 bytes).
config SPL_SERIAL_SUPPORT
bool "Support serial"
select SPL_PRINTF

34
common/spl/spl_sata.c
View File

@ -25,6 +25,37 @@
#define CONFIG_SPL_FS_LOAD_PAYLOAD_NAME "u-boot.img"
#endif
#ifndef CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR
/* Dummy value to make the compiler happy */
#define CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR 0x100
#endif
static int spl_sata_load_image_raw(struct spl_image_info *spl_image,
struct blk_desc *stor_dev, unsigned long sector)
{
struct image_header *header;
unsigned long count;
u32 image_size_sectors;
int ret;
header = spl_get_load_buffer(-sizeof(*header), stor_dev->blksz);
count = blk_dread(stor_dev, sector, 1, header);
if (count == 0)
return -EIO;
ret = spl_parse_image_header(spl_image, header);
if (ret)
return ret;
image_size_sectors = DIV_ROUND_UP(spl_image->size, stor_dev->blksz);
count = blk_dread(stor_dev, sector, image_size_sectors,
(void *)spl_image->load_addr);
if (count != image_size_sectors)
return -EIO;
return 0;
}
static int spl_sata_load_image(struct spl_image_info *spl_image,
struct spl_boot_device *bootdev)
{
@ -59,6 +90,9 @@ static int spl_sata_load_image(struct spl_image_info *spl_image,
err = spl_load_image_fat(spl_image, stor_dev,
CONFIG_SYS_SATA_FAT_BOOT_PARTITION,
CONFIG_SPL_FS_LOAD_PAYLOAD_NAME);
} else if (IS_ENABLED(CONFIG_SPL_SATA_RAW_U_BOOT_USE_SECTOR)) {
err = spl_sata_load_image_raw(spl_image, stor_dev,
CONFIG_SPL_SATA_RAW_U_BOOT_SECTOR);
}
}
if (err) {