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| author | Ulf Hansson <ulf.hansson@linaro.org> | 2020-01-22 15:27:45 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2020-01-24 12:16:05 +0100 |
| commit | 24ed3bd01d6a844fd5e8a75f48d0a3d10ed71bf9 (patch) | |
| tree | 2c37ba5673bc2f04d754a31e84dd367cdfbe6ac5 /drivers/mmc | |
| parent | 1d45a3f47c0be28989cdbace166e4f73214ff88c (diff) | |
| download | linux-24ed3bd01d6a844fd5e8a75f48d0a3d10ed71bf9.tar.bz2 | |
mmc: core: Specify timeouts for BKOPS and CACHE_FLUSH for eMMC
The timeout values used while waiting for a CMD6 for BKOPS or a CACHE_FLUSH
to complete, are not defined by the eMMC spec. However, a timeout of 10
minutes as is currently being used, is just silly for both of these cases.
Instead, let's specify more reasonable timeouts, 120s for BKOPS and 30s for
CACHE_FLUSH.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Link: https://lore.kernel.org/r/20200122142747.5690-2-ulf.hansson@linaro.org
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/mmc_ops.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/mmc/core/mmc_ops.c b/drivers/mmc/core/mmc_ops.c index 09113b9ad679..1966abcbc7c0 100644 --- a/drivers/mmc/core/mmc_ops.c +++ b/drivers/mmc/core/mmc_ops.c @@ -19,7 +19,9 @@ #include "host.h" #include "mmc_ops.h" -#define MMC_OPS_TIMEOUT_MS (10 * 60 * 1000) /* 10 minute timeout */ +#define MMC_OPS_TIMEOUT_MS (10 * 60 * 1000) /* 10min*/ +#define MMC_BKOPS_TIMEOUT_MS (120 * 1000) /* 120s */ +#define MMC_CACHE_FLUSH_TIMEOUT_MS (30 * 1000) /* 30s */ static const u8 tuning_blk_pattern_4bit[] = { 0xff, 0x0f, 0xff, 0x00, 0xff, 0xcc, 0xc3, 0xcc, @@ -941,7 +943,7 @@ void mmc_run_bkops(struct mmc_card *card) * urgent levels by using an asynchronous background task, when idle. */ err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_BKOPS_START, 1, MMC_OPS_TIMEOUT_MS); + EXT_CSD_BKOPS_START, 1, MMC_BKOPS_TIMEOUT_MS); if (err) pr_warn("%s: Error %d starting bkops\n", mmc_hostname(card->host), err); @@ -961,7 +963,8 @@ int mmc_flush_cache(struct mmc_card *card) (card->ext_csd.cache_size > 0) && (card->ext_csd.cache_ctrl & 1)) { err = mmc_switch(card, EXT_CSD_CMD_SET_NORMAL, - EXT_CSD_FLUSH_CACHE, 1, 0); + EXT_CSD_FLUSH_CACHE, 1, + MMC_CACHE_FLUSH_TIMEOUT_MS); if (err) pr_err("%s: cache flush error %d\n", mmc_hostname(card->host), err); |