diff options
| author | Kishon Vijay Abraham I <kishon@ti.com> | 2017-09-21 16:30:05 +0200 |
|---|---|---|
| committer | Jaehoon Chung <jh80.chung@samsung.com> | 2018-01-12 18:11:04 +0900 |
| commit | ec841209a7d250c1616d56744e1e79acab6c2921 (patch) | |
| tree | 3dfea8b04f0f76e34e251e618d44fc69d7b7c247 | |
| parent | 2e7410d76ad11856d09284c18d262d0bb2a3da0c (diff) | |
mmc: Add a execute_tuning() callback to the mmc operations.
Tuning is a mandatory step in the initialization of SDR104 and HS200 modes.
This callback execute the tuning process.
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Jean-Jacques Hiblot <jjhiblot@ti.com>
| -rw-r--r-- | drivers/mmc/mmc-uclass.c | 14 | ||||
| -rw-r--r-- | drivers/mmc/mmc.c | 5 | ||||
| -rw-r--r-- | include/mmc.h | 11 |
3 files changed, 30 insertions, 0 deletions
diff --git a/drivers/mmc/mmc-uclass.c b/drivers/mmc/mmc-uclass.c index 9c6a8ba476..60cc0ac4cc 100644 --- a/drivers/mmc/mmc-uclass.c +++ b/drivers/mmc/mmc-uclass.c @@ -92,6 +92,20 @@ int mmc_getcd(struct mmc *mmc) return dm_mmc_get_cd(mmc->dev); } +int dm_mmc_execute_tuning(struct udevice *dev, uint opcode) +{ + struct dm_mmc_ops *ops = mmc_get_ops(dev); + + if (!ops->execute_tuning) + return -ENOSYS; + return ops->execute_tuning(dev, opcode); +} + +int mmc_execute_tuning(struct mmc *mmc, uint opcode) +{ + return dm_mmc_execute_tuning(mmc->dev, opcode); +} + struct mmc *mmc_get_mmc_dev(struct udevice *dev) { struct mmc_uclass_priv *upriv; diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c index be68d8d930..b06e4bc917 100644 --- a/drivers/mmc/mmc.c +++ b/drivers/mmc/mmc.c @@ -1199,6 +1199,11 @@ static inline int bus_width(uint cap) } #if !CONFIG_IS_ENABLED(DM_MMC) +static int mmc_execute_tuning(struct mmc *mmc, uint opcode) +{ + return -ENOTSUPP; +} + static void mmc_send_init_stream(struct mmc *mmc) { } diff --git a/include/mmc.h b/include/mmc.h index 8d6e0f8fb0..56fa869ea8 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -383,6 +383,15 @@ struct dm_mmc_ops { * @return 0 if write-enabled, 1 if write-protected, -ve on error */ int (*get_wp)(struct udevice *dev); + + /** + * execute_tuning() - Start the tuning process + * + * @dev: Device to start the tuning + * @opcode: Command opcode to send + * @return 0 if OK, -ve on error + */ + int (*execute_tuning)(struct udevice *dev, uint opcode); }; #define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops) @@ -393,12 +402,14 @@ int dm_mmc_set_ios(struct udevice *dev); void dm_mmc_send_init_stream(struct udevice *dev); int dm_mmc_get_cd(struct udevice *dev); int dm_mmc_get_wp(struct udevice *dev); +int dm_mmc_execute_tuning(struct udevice *dev, uint opcode); /* Transition functions for compatibility */ int mmc_set_ios(struct mmc *mmc); void mmc_send_init_stream(struct mmc *mmc); int mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); +int mmc_execute_tuning(struct mmc *mmc, uint opcode); #else struct mmc_ops { |