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spl: mmc: Add option to set eMMC HW boot partition 

This change allows setting pre-defined eMMC boot partition for SPL eMMC
booting. It is necessary in the case when one wants to boot (through falcon
boot) from eMMC after loading SPL from other memory (like SPI-NOR).

Signed-off-by: Mans Rullgard <mans@mansr.com>
[lukma: Edit the commit message]
Signed-off-by: Lukasz Majewski <lukma@denx.de>
Acked-by: Andreas Dannenberg <dannenberg@ti.com>
This commit is contained in:
Mans Rullgard 2019-09-03 16:16:50 +02:00 committed by Tom Rini
parent 9243990b17
commit 17241ea054
2 changed files with 10 additions and 0 deletions
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6
common/spl/Kconfig
View File

@ -325,6 +325,12 @@ config SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR
Address on the MMC to load U-Boot from, when the MMC is being used
in raw mode. Units: MMC sectors (1 sector = 512 bytes).
config SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
int "Number of the eMMC boot partition to use"
default 1
help
eMMC boot partition number to use when the eMMC in raw mode.
config SYS_MMCSD_RAW_MODE_U_BOOT_USE_PARTITION
bool "MMC Raw mode: by partition"
help

4
common/spl/spl_mmc.c
View File

@ -355,6 +355,9 @@ int spl_mmc_load(struct spl_image_info *spl_image,
err = -EINVAL;
switch (boot_mode) {
case MMCSD_MODE_EMMCBOOT:
#ifdef CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION
part = CONFIG_SYS_MMCSD_RAW_MODE_EMMC_BOOT_PARTITION;
#else
/*
* We need to check what the partition is configured to.
* 1 and 2 match up to boot0 / boot1 and 7 is user data
@ -364,6 +367,7 @@ int spl_mmc_load(struct spl_image_info *spl_image,
if (part == 7)
part = 0;
#endif
if (CONFIG_IS_ENABLED(MMC_TINY))
err = mmc_switch_part(mmc, part);