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| author | Dmitry Lifshitz <lifshitz@compulab.co.il> | 2014-07-30 13:19:06 +0300 |
|---|---|---|
| committer | Pantelis Antoniou <panto@antoniou-consulting.com> | 2014-08-01 20:12:15 +0300 |
| commit | 6e7b7df4df435742fcfde5f384760ae1bda2e39c (patch) | |
| tree | 64f0cc9f8d1d07ca8f19d66cf2a9f0ba17eead23 | |
| parent | ac77f42d0939f05b39335277b678859b47edb997 (diff) | |
| download | u-boot-6e7b7df4df435742fcfde5f384760ae1bda2e39c.zip u-boot-6e7b7df4df435742fcfde5f384760ae1bda2e39c.tar.gz u-boot-6e7b7df4df435742fcfde5f384760ae1bda2e39c.tar.bz2 | |
env_mmc: support env partition setup in runtime
Add callback with __weak annotation to allow setup of environment
partition number in runtime from a board file.
Propagate mmc_switch_part() return value into init_mmc_for_env() instead
of -1 in case of failure.
Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Pantelis Antoniou <panto@antoniou-consulting.com>
| -rw-r--r-- | common/env_mmc.c | 35 | ||||
| -rw-r--r-- | include/environment.h | 3 |
2 files changed, 26 insertions, 12 deletions
diff --git a/common/env_mmc.c b/common/env_mmc.c index 7da10e6..a7621a8 100644 --- a/common/env_mmc.c +++ b/common/env_mmc.c @@ -62,16 +62,36 @@ int env_init(void) return 0; } -static int init_mmc_for_env(struct mmc *mmc) -{ #ifdef CONFIG_SYS_MMC_ENV_PART +__weak uint mmc_get_env_part(struct mmc *mmc) +{ + return CONFIG_SYS_MMC_ENV_PART; +} + +static int mmc_set_env_part(struct mmc *mmc) +{ + uint part = mmc_get_env_part(mmc); int dev = CONFIG_SYS_MMC_ENV_DEV; + int ret = 0; #ifdef CONFIG_SPL_BUILD dev = 0; #endif + + if (part != mmc->part_num) { + ret = mmc_switch_part(dev, part); + if (ret) + puts("MMC partition switch failed\n"); + } + + return ret; +} +#else +static inline int mmc_set_env_part(struct mmc *mmc) {return 0; }; #endif +static int init_mmc_for_env(struct mmc *mmc) +{ if (!mmc) { puts("No MMC card found\n"); return -1; @@ -82,16 +102,7 @@ static int init_mmc_for_env(struct mmc *mmc) return -1; } -#ifdef CONFIG_SYS_MMC_ENV_PART - if (CONFIG_SYS_MMC_ENV_PART != mmc->part_num) { - if (mmc_switch_part(dev, CONFIG_SYS_MMC_ENV_PART)) { - puts("MMC partition switch failed\n"); - return -1; - } - } -#endif - - return 0; + return mmc_set_env_part(mmc); } static void fini_mmc_for_env(struct mmc *mmc) diff --git a/include/environment.h b/include/environment.h index d7a1adf..1fdbdad 100644 --- a/include/environment.h +++ b/include/environment.h @@ -184,6 +184,9 @@ extern void env_reloc(void); #include <mmc.h> extern int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr); +# ifdef CONFIG_SYS_MMC_ENV_PART +extern uint mmc_get_env_part(struct mmc *mmc); +# endif #endif #ifndef DO_DEPS_ONLY |