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mmc: Board-specific MMC power initializations

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Some devices may use non-standard combinations of regulators to power MMC:
this allows these devices to provide a board-specific MMC power init function
to set everything up in their own way.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
Reviewed-by: Tom Rini <trini@ti.com>
This commit is contained in:
Paul Kocialkowski 2014-11-08 20:55:45 +01:00 committed by Tom Rini
parent 1e4ad74b87
commit 95de9ab201
2 changed files with 8 additions and 0 deletions
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7
drivers/mmc/mmc.c
View File

@ -1277,6 +1277,11 @@ block_dev_desc_t *mmc_get_dev(int dev)
}
#endif
/* board-specific MMC power initializations. */
__weak void board_mmc_power_init(void)
{
}
int mmc_start_init(struct mmc *mmc)
{
int err;
@ -1293,6 +1298,8 @@ int mmc_start_init(struct mmc *mmc)
if (mmc->has_init)
return 0;
board_mmc_power_init();
/* made sure it's not NULL earlier */
err = mmc->cfg->ops->init(mmc);

1
include/mmc.h
View File

@ -385,6 +385,7 @@ struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
int mmc_legacy_init(int verbose);
#endif
void board_mmc_power_init(void);
int board_mmc_init(bd_t *bis);
int cpu_mmc_init(bd_t *bis);
int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr);