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| author | Yi Sun <yi.y.sun@intel.com> | 2014-09-09 02:13:59 +0000 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2014-09-24 11:03:17 +0200 |
| commit | 7756a96d1617753d8387e59e0ba410e0dd512be4 (patch) | |
| tree | 55686d4c3b43cbbb8726b4da6698f395b81cdc0a | |
| parent | 528bc7808f4e36a330ec17ef22803f1345091494 (diff) | |
| download | op-kernel-dev-7756a96d1617753d8387e59e0ba410e0dd512be4.zip op-kernel-dev-7756a96d1617753d8387e59e0ba410e0dd512be4.tar.gz | |
mmc: sdhci: execute tuning when device is not busy
We find tuning timeout because of the secure erase operation lasts too
long, so don't do tuning when device is busy.
Signed-off-by: Yi Sun <yi.y.sun@intel.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
| -rw-r--r-- | drivers/mmc/host/sdhci.c | 7 | ||||
| -rw-r--r-- | drivers/mmc/host/sdhci.h | 1 |
2 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index db113ab..cbd4337 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1366,11 +1366,12 @@ static void sdhci_request(struct mmc_host *mmc, struct mmc_request *mrq) present_state = sdhci_readl(host, SDHCI_PRESENT_STATE); /* * Check if the re-tuning timer has already expired and there - * is no on-going data transfer. If so, we need to execute - * tuning procedure before sending command. + * is no on-going data transfer and DAT0 is not busy. If so, + * we need to execute tuning procedure before sending command. */ if ((host->flags & SDHCI_NEEDS_RETUNING) && - !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ))) { + !(present_state & (SDHCI_DOING_WRITE | SDHCI_DOING_READ)) && + (present_state & SDHCI_DATA_0_LVL_MASK)) { if (mmc->card) { /* eMMC uses cmd21 but sd and sdio use cmd19 */ tuning_opcode = diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h index 9828ff8..31896a7 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -72,6 +72,7 @@ #define SDHCI_WRITE_PROTECT 0x00080000 #define SDHCI_DATA_LVL_MASK 0x00F00000 #define SDHCI_DATA_LVL_SHIFT 20 +#define SDHCI_DATA_0_LVL_MASK 0x00100000 #define SDHCI_HOST_CONTROL 0x28 #define SDHCI_CTRL_LED 0x01 |
