diff options
| author | Patrick Delaunay <patrick.delaunay@foss.st.com> | 2021-03-01 13:17:56 +0100 |
|---|---|---|
| committer | Patrice Chotard <patrice.chotard@foss.st.com> | 2021-03-11 18:02:51 +0100 |
| commit | 9f97193616f1fa2a9983ef3f846d5e5b42bc97a6 (patch) | |
| tree | 496898009797e22819d4d1aecd7bce5d93256c71 /board/st | |
| parent | c45f82bb2ee9c923a84b13f3eff8e151fbafa66b (diff) | |
board: stm32mp1: use CONFIG_SYS_MMC_ENV_DEV when available
Check whether user has explicitly defined the mmc device to use
in mmc_get_env_dev() with CONFIG_SYS_MMC_ENV_DEV.
On STMicroelectronics boards the used mmc device for environment is
the instance of boot device provided by the ROM code; the mmc instance
is configured by alias in device tree. The used partition is defined in
device tree with u-boot,mmc-env-partition = "ssbl".
This patch allows to override this selection for the support of customer
boards without alias; for example when SDMMC1 is not used and ENV in
mmc0=SDMMC2, user can force the value: CONFIG_SYS_MMC_ENV_DEV = 0.
On STMicroelectronics boards, the current behavior is kept with
CONFIG_SYS_MMC_ENV_DEV = -1.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Reviewed-by: Patrice Chotard <patrice.chotard@foss.st.com>
Diffstat (limited to 'board/st')
| -rw-r--r-- | board/st/stm32mp1/stm32mp1.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/board/st/stm32mp1/stm32mp1.c b/board/st/stm32mp1/stm32mp1.c index ab85d8ba68..759181fb5d 100644 --- a/board/st/stm32mp1/stm32mp1.c +++ b/board/st/stm32mp1/stm32mp1.c @@ -862,8 +862,14 @@ const char *env_ext4_get_dev_part(void) int mmc_get_env_dev(void) { - u32 bootmode = get_bootmode(); + u32 bootmode; + + if (CONFIG_SYS_MMC_ENV_DEV >= 0) + return CONFIG_SYS_MMC_ENV_DEV; + + bootmode = get_bootmode(); + /* use boot instance to select the correct mmc device identifier */ return (bootmode & TAMP_BOOT_INSTANCE_MASK) - 1; } |