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env_mmc: support env partition setup in runtime

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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>
This commit is contained in:
Dmitry Lifshitz
2014-07-30 13:19:06 +03:00
committed by Pantelis Antoniou
parent ac77f42d09
commit 6e7b7df4df
2 changed files with 26 additions and 12 deletions
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3
include/environment.h
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@@ -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