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| author | Alexey Skidanov <alexey.skidanov@sandisk.com> | 2015-01-29 10:49:43 +0200 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2015-01-29 11:15:12 +0100 |
| commit | 0501be6429e4eb02f417ad83eacd84b8c57b0283 (patch) | |
| tree | c56a75eb3b4c00bdab0925cb6e72e15e592684d4 /drivers/mmc/core/mmc.c | |
| parent | 14460dbaf7a5a0488963fdb8232ad5c8a8cca7b7 (diff) | |
| download | op-kernel-dev-0501be6429e4eb02f417ad83eacd84b8c57b0283.zip op-kernel-dev-0501be6429e4eb02f417ad83eacd84b8c57b0283.tar.gz | |
mmc: Resolve BKOPS compatability issue
This patch is coming to fix compatibility issue of BKOPS_EN field of EXT_CSD.
In eMMC-5.1, BKOPS_EN was changed, and now it has two operational bits:
Bit 0 - MANUAL_EN
Bit 1 - AUTO_EN
In previous eMMC revisions, only Bit 0 was supported.
Signed-off-by: Alexey Skidanov <alexey.skidanov@sandisk.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/mmc.c')
| -rw-r--r-- | drivers/mmc/core/mmc.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 1fc48a2..1d41e85 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -483,11 +483,13 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd) /* check whether the eMMC card supports BKOPS */ if (ext_csd[EXT_CSD_BKOPS_SUPPORT] & 0x1) { card->ext_csd.bkops = 1; - card->ext_csd.bkops_en = ext_csd[EXT_CSD_BKOPS_EN]; + card->ext_csd.man_bkops_en = + (ext_csd[EXT_CSD_BKOPS_EN] & + EXT_CSD_MANUAL_BKOPS_MASK); card->ext_csd.raw_bkops_status = ext_csd[EXT_CSD_BKOPS_STATUS]; - if (!card->ext_csd.bkops_en) - pr_info("%s: BKOPS_EN bit is not set\n", + if (!card->ext_csd.man_bkops_en) + pr_info("%s: MAN_BKOPS_EN bit is not set\n", mmc_hostname(card->host)); } |
