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| author | Pali Rohár <pali@kernel.org> | 2023-04-13 22:57:49 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2023-05-03 08:39:23 +0200 |
| commit | 2e9009e874640feec9e01ffa59c305bba085058c (patch) | |
| tree | cb4148eb057de5013c2a78b74a262759ecca3b98 | |
| parent | 461fa17970de418a93832f734a595031c0b72128 (diff) | |
| download | u-boot-2e9009e874640feec9e01ffa59c305bba085058c.zip u-boot-2e9009e874640feec9e01ffa59c305bba085058c.tar.gz u-boot-2e9009e874640feec9e01ffa59c305bba085058c.tar.bz2 | |
arm: mvebu: spl: Load proper U-Boot from correct eMMC partition
A38x BootROM completely ignores EXT_CSD_PART_CONF eMMC register and tries
to load SPL from any partition in defined order. Chosen partition can be
determined from the access bits in EXT_CSD_PART_CONF eMMC register.
So implement custom spl_mmc_emmc_boot_partition() function to always
returns eMMC partition from which BootROM loaded SPL. So this partition
would be used for loading proper U-Boot too.
Fixes: 2f27db2fbd6e ("arm: mvebu: spl: Load proper U-Boot from selected eMMC boot partition")
Signed-off-by: Pali Rohár <pali@kernel.org>
| -rw-r--r-- | arch/arm/mach-mvebu/spl.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/arch/arm/mach-mvebu/spl.c b/arch/arm/mach-mvebu/spl.c index 379daa8..0688601 100644 --- a/arch/arm/mach-mvebu/spl.c +++ b/arch/arm/mach-mvebu/spl.c @@ -11,6 +11,7 @@ #include <image.h> #include <init.h> #include <log.h> +#include <mmc.h> #include <spl.h> #include <asm/global_data.h> #include <asm/io.h> @@ -34,8 +35,9 @@ /* * When loading U-Boot via SPL from eMMC, the kwbimage main header is stored at - * sector 0 and either on HW boot partition or on data partition. Choice of HW - * partition depends on what is configured in eMMC EXT_CSC register. + * sector 0 on some HW/boot partition. Choice of HW partition depends on what is + * set in PART_ACCESS_MASK bits of EXT_CSD_PART_CONF eMMC register. Partition + * access bits into EXT_CSD_PART_CONF are set by the BootROM. * When loading U-Boot via SPL from SD card, the kwbimage main header is stored * at sector 1. * Therefore MBR/GPT partition booting, fixed sector number and fixed eMMC HW @@ -123,6 +125,10 @@ u32 spl_mmc_boot_mode(struct mmc *mmc, const u32 boot_device) { return IS_SD(mmc) ? MMCSD_MODE_RAW : MMCSD_MODE_EMMCBOOT; } +int spl_mmc_emmc_boot_partition(struct mmc *mmc) +{ + return EXT_CSD_EXTRACT_PARTITION_ACCESS(mmc->part_config); +} unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc, unsigned long raw_sect) { |