[U-Boot] [PATCH v4 1/3] mmc: Board-specific MMC power initializations
Paul Kocialkowski
contact at paulk.fr
Sat Nov 8 20:55:45 CET 2014
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 at paulk.fr>
---
drivers/mmc/mmc.c | 7 +++++++
include/mmc.h | 1 +
2 files changed, 8 insertions(+)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
index 44a4feb..8436bc7 100644
--- a/drivers/mmc/mmc.c
+++ b/drivers/mmc/mmc.c
@@ -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);
diff --git a/include/mmc.h b/include/mmc.h
index d74a190..adffc35 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -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);
--
1.9.1
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