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mmc: Resolve BKOPS compatability issue

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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>
This commit is contained in:
Alexey Skidanov 2015-01-29 10:49:43 +02:00 • committed by Ulf Hansson
parent 14460dbaf7
commit 0501be6429
4 changed files with 12 additions and 5 deletions
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5
include/linux/mmc/mmc.h
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@ -427,6 +427,11 @@ struct _mmc_csd {
*/
#define EXT_CSD_BKOPS_LEVEL_2 0x2
/*
* BKOPS modes
*/
#define EXT_CSD_MANUAL_BKOPS_MASK 0x01
/*
* MMC_SWITCH access modes
*/