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 --- drivers/mmc/mmc.c | 8 ++++++++ include/mmc.h | 2 ++ 2 files changed, 10 insertions(+)
diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index 44a4feb..125f347 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1277,6 +1277,12 @@ block_dev_desc_t *mmc_get_dev(int dev) } #endif
+/* board-specific MMC power initializations. */ +__weak int board_mmc_power_init(void) +{ + return -1; +} + int mmc_start_init(struct mmc *mmc) { int err; @@ -1293,6 +1299,8 @@ 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 7f5f9bc..577e269 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -388,6 +388,8 @@ int mmc_legacy_init(int verbose); int board_mmc_init(bd_t *bis); int cpu_mmc_init(bd_t *bis);
+int board_mmc_power_init(void); + /* Set block count limit because of 16 bit register limit on some hardware*/ #ifndef CONFIG_SYS_MMC_MAX_BLK_COUNT #define CONFIG_SYS_MMC_MAX_BLK_COUNT 65535