imx: kontron-sl-mx8mm: Adjust offset for U-Boot proper in case of eMMC fastboot

The image offset on SD/MMC devices is 33 KiB, except for eMMC boot if
fastboot is enabled. In this case it is 1 KiB. In order to make the
the bootloader universal, check the fastboot OTP boot fuse and adjust
the offset.

Signed-off-by: Frieder Schrempf <frieder.schrempf@kontron.de>
This commit is contained in:
Frieder Schrempf
2025-11-04 11:30:07 +01:00
committed by Fabio Estevam
parent 4faa1a5287
commit 0358408104

View File

@@ -186,6 +186,26 @@ static int power_init_board(void)
return 0;
}
unsigned long board_spl_mmc_get_uboot_raw_sector(struct mmc *mmc, unsigned long raw_sect)
{
/*
* The image offset on SD/MMC devices is 33 KiB, except for eMMC boot if
* fastboot is enabled. In this case it is 1 KiB. In order to make the
* bootloader universal, check the fastboot OTP boot fuse and adjust
* the offset.
*/
if (!IS_SD(mmc) && (readl(OCOTP_BASE_ADDR + 0x470) & 0x80)) {
switch (EXT_CSD_EXTRACT_BOOT_PART(mmc->part_config)) {
case EMMC_BOOT_PART_BOOT1:
case EMMC_BOOT_PART_BOOT2:
raw_sect -= 32 * 2;
break;
}
}
return raw_sect;
}
void board_init_f(ulong dummy)
{
int ret;