diff options
| author | Minda Chen <Minda.Chen@csr.com> | 2014-11-26 13:05:33 +0800 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-11-26 14:36:51 +0100 |
| commit | 996903de92f0c7a32d8c83f37d7ebcea0def8660 (patch) | |
| tree | e4a4d16b0f9a088c1be9cf57583d676348d1ff50 /include/linux/mmc | |
| parent | c6eb588028f8f23dae8e26312cf192f365c85b95 (diff) | |
mmc: core: add core-level function for sending tuning commands
According to the SD card spec, Add a manual tuning command function
for SDR104/HS200.
Sending command 19 or command 21 to read data and compare with the
tunning block pattern.
This patch will help to decrease some platform private codes in SDHCI
platform_execute_tuning() callbacks.
Signed-off-by: Minda Chen <Minda.Chen@csr.com>
Signed-off-by: Barry Song <Baohua.Song@csr.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/core.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index b11e43c10631..c4bdaa128693 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -154,6 +154,7 @@ extern void mmc_start_bkops(struct mmc_card *card, bool from_exception); extern int __mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int, bool, bool, bool); extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int); +extern int mmc_send_tuning(struct mmc_card *card); extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); #define MMC_ERASE_ARG 0x00000000 |