diff options
| author | Haojian Zhuang <haojian.zhuang@linaro.org> | 2016-08-02 20:51:27 +0800 |
|---|---|---|
| committer | Haojian Zhuang <haojian.zhuang@linaro.org> | 2016-08-12 11:41:00 +0800 |
| commit | 445b1e704ec5734da9e96a44c9d24f50e3da25c0 (patch) | |
| tree | bd4b85e10530605090a3bd7f901e19f9468b5d40 /include | |
| parent | 3d99b17f60142ef96d39759132d4448e138b6c4e (diff) | |
emmc: support CMD23
Support CMD23. When CMD23 is used, CMD12 could be avoided.
Two scenarios:
1. CMD17 for single block, CMD18 + CMD12 for multiple blocks.
2. CMD23 + CMD18 for both single block and multiple blocks.
The emmc_init() should initialize whether CMD23 is supported
or not.
Signed-off-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/drivers/emmc.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/drivers/emmc.h b/include/drivers/emmc.h index 61d44959..5f78dcef 100644 --- a/include/drivers/emmc.h +++ b/include/drivers/emmc.h @@ -49,6 +49,7 @@ #define EMMC_CMD13 13 #define EMMC_CMD17 17 #define EMMC_CMD18 18 +#define EMMC_CMD23 23 #define EMMC_CMD24 24 #define EMMC_CMD25 25 #define EMMC_CMD35 35 @@ -111,6 +112,8 @@ #define EMMC_STATE_BTST 9 #define EMMC_STATE_SLP 10 +#define EMMC_FLAG_CMD23 (1 << 0) + typedef struct emmc_cmd { unsigned int cmd_idx; unsigned int cmd_arg; @@ -177,6 +180,7 @@ size_t emmc_erase_blocks(int lba, size_t size); size_t emmc_rpmb_read_blocks(int lba, uintptr_t buf, size_t size); size_t emmc_rpmb_write_blocks(int lba, const uintptr_t buf, size_t size); size_t emmc_rpmb_erase_blocks(int lba, size_t size); -void emmc_init(const emmc_ops_t *ops, int clk, int bus_width); +void emmc_init(const emmc_ops_t *ops, int clk, int bus_width, + unsigned int flags); #endif /* __EMMC_H__ */ |