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>
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 @@
#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