diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2016-12-02 13:16:35 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2016-12-05 14:15:46 +0100 |
| commit | ef3d232245ab7a1bf361c52449e612e4c8b7c5ab (patch) | |
| tree | 0e6d579644349f6efa511681faadaba24b9e9b58 /drivers/mmc/core/mmc_ops.h | |
| parent | db52d4f8a4bde36263a7cc9d46ff20b243562ac9 (diff) | |
| download | op-kernel-dev-ef3d232245ab7a1bf361c52449e612e4c8b7c5ab.zip op-kernel-dev-ef3d232245ab7a1bf361c52449e612e4c8b7c5ab.tar.gz | |
mmc: mmc: Relax checking for switch errors after HS200 switch
The JEDEC specification indicates CMD13 can be used after a HS200 switch
to check for errors. However in practice some boards experience CRC errors
in the CMD13 response. Consequently, for HS200, CRC errors are not a
reliable way to know the switch failed. If there really is a problem, we
would expect tuning will fail and the result ends up the same. So change
the error condition to ignore CRC errors in that case.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/mmc_ops.h')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/mmc/core/mmc_ops.h b/drivers/mmc/core/mmc_ops.h index 761cb69..abd525e 100644 --- a/drivers/mmc/core/mmc_ops.h +++ b/drivers/mmc/core/mmc_ops.h @@ -28,6 +28,7 @@ int mmc_bus_test(struct mmc_card *card, u8 bus_width); int mmc_send_hpi_cmd(struct mmc_card *card, u32 *status); int mmc_can_ext_csd(struct mmc_card *card); int mmc_switch_status(struct mmc_card *card); +int __mmc_switch_status(struct mmc_card *card, bool crc_err_fatal); int __mmc_switch(struct mmc_card *card, u8 set, u8 index, u8 value, unsigned int timeout_ms, unsigned char timing, bool use_busy_signal, bool send_status, bool retry_crc_err); |
