diff options
| author | Yangbo Lu | 2020-09-01 16:58:04 +0800 |
|---|---|---|
| committer | Peng Fan | 2020-10-12 15:46:34 +0800 |
| commit | d271e10581e7f15451e9d4c3cdd39044440a848a (patch) | |
| tree | 0d1d90084cc5c89957fd5aa4e9603962e36dd934 /include/mmc.h | |
| parent | 8c96880814b23b5e17b5e7d350ea6066dae54bc6 (diff) | |
mmc: add a mmc_hs400_prepare_ddr() interface
Add a mmc_hs400_prepare_ddr() interface for controllers
which needs preparation before switching to DDR mode for
HS400 mode.
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
Diffstat (limited to 'include/mmc.h')
| -rw-r--r-- | include/mmc.h | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/include/mmc.h b/include/mmc.h index bea1c491512..ac7b54f1a7e 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -513,6 +513,14 @@ struct dm_mmc_ops { * @return maximum number of blocks for this transfer */ int (*get_b_max)(struct udevice *dev, void *dst, lbaint_t blkcnt); + + /** + * hs400_prepare_ddr - prepare to switch to DDR mode + * + * @dev: Device to check + * @return 0 if success, -ve on error + */ + int (*hs400_prepare_ddr)(struct udevice *dev); }; #define mmc_get_ops(dev) ((struct dm_mmc_ops *)(dev)->driver->ops) @@ -540,7 +548,7 @@ int mmc_host_power_cycle(struct mmc *mmc); int mmc_deferred_probe(struct mmc *mmc); int mmc_reinit(struct mmc *mmc); int mmc_get_b_max(struct mmc *mmc, void *dst, lbaint_t blkcnt); - +int mmc_hs400_prepare_ddr(struct mmc *mmc); #else struct mmc_ops { int (*send_cmd)(struct mmc *mmc, @@ -552,6 +560,11 @@ struct mmc_ops { int (*host_power_cycle)(struct mmc *mmc); int (*get_b_max)(struct mmc *mmc, void *dst, lbaint_t blkcnt); }; + +static inline int mmc_hs400_prepare_ddr(struct mmc *mmc) +{ + return 0; +} #endif struct mmc_config { |