diff options
| author | Stefan Wahren <stefan.wahren@i2se.com> | 2017-01-05 19:24:04 +0000 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-01-12 12:31:00 +0100 |
| commit | 01167c7b9cbf099c69fe411a228e4e9c7104e123 (patch) | |
| tree | dcf904ebd060c3271bdf503f1e6a06321e083945 /drivers/mmc | |
| parent | e1d070c3793a2766122865a7c2142853b48808c5 (diff) | |
| download | linux-01167c7b9cbf099c69fe411a228e4e9c7104e123.tar.gz | |
mmc: mxs-mmc: Fix additional cycles after transmission stop
According to the code the intention is to append 8 SCK cycles instead of 4 at end of a MMC_STOP_TRANSMISSION command. But this will never happened because it's an AC command not an ADTC command. So fix this by moving the statement into the right function. Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Fixes: e4243f13d10e (mmc: mxs-mmc: add mmc host driver for i.MX23/28) Cc: <stable@vger.kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/host/mxs-mmc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 44ecebd1ea8c..c8b8ac66ff7e 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -309,6 +309,9 @@ static void mxs_mmc_ac(struct mxs_mmc_host *host) cmd0 = BF_SSP(cmd->opcode, CMD0_CMD); cmd1 = cmd->arg; + if (cmd->opcode == MMC_STOP_TRANSMISSION) + cmd0 |= BM_SSP_CMD0_APPEND_8CYC; + if (host->sdio_irq_en) { ctrl0 |= BM_SSP_CTRL0_SDIO_IRQ_CHECK; cmd0 |= BM_SSP_CMD0_CONT_CLKING_EN | BM_SSP_CMD0_SLOW_CLKING_EN; @@ -417,8 +420,7 @@ static void mxs_mmc_adtc(struct mxs_mmc_host *host) ssp->base + HW_SSP_BLOCK_SIZE); } - if ((cmd->opcode == MMC_STOP_TRANSMISSION) || - (cmd->opcode == SD_IO_RW_EXTENDED)) + if (cmd->opcode == SD_IO_RW_EXTENDED) cmd0 |= BM_SSP_CMD0_APPEND_8CYC; cmd1 = cmd->arg; |