diff options
| author | Chaotian Jing <chaotian.jing@mediatek.com> | 2015-10-27 09:24:28 +0300 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-10-27 12:38:41 +0300 |
| commit | 9979dbe5158899b556eb772b7335e29417ac0ddd (patch) | |
| tree | 23c3b19e0caeb3b6ed96db532eafbfdd7c300aca /include/linux/mmc | |
| parent | c9b5061e7728da1f7192ecaf3ffab4a7300920dc (diff) | |
| download | linux-9979dbe5158899b556eb772b7335e29417ac0ddd.tar.xz | |
mmc: mmc: extend the mmc_send_tuning()
The mmc_execute_tuning() has already prepared the opcode,
there is no need to prepare it again at mmc_send_tuning(),
and, there is a BUG of mmc_send_tuning() to determine the opcode
by bus width, assume eMMC was running at HS200, 4bit mode,
then the mmc_send_tuning() will overwrite the opcode from CMD21
to CMD19, then got error.
in addition, extend an argument of "cmd_error" to allow getting
if there was cmd error when tune response.
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
[Ulf: Rebased patch]
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/core.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index 79a31d3c3788..37967b6da03c 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -153,7 +153,7 @@ extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *, struct mmc_command *, int); extern void mmc_start_bkops(struct mmc_card *card, bool from_exception); extern int mmc_switch(struct mmc_card *, u8, u8, u8, unsigned int); -extern int mmc_send_tuning(struct mmc_host *host); +extern int mmc_send_tuning(struct mmc_host *host, u32 opcode, int *cmd_error); extern int mmc_get_ext_csd(struct mmc_card *card, u8 **new_ext_csd); #define MMC_ERASE_ARG 0x00000000 |