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>

2 files changed, 6 insertions, 1 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 4d69c00497bd..a6cf4c063e4e 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -83,7 +83,7 @@ struct mmc_ext_csd {
         bool                    hpi;                    /* HPI support bit */
         unsigned int            hpi_cmd;                /* cmd used as HPI */
         bool                    bkops;          /* background support bit */
-        bool                    bkops_en;       /* background enable bit */
+        bool                    man_bkops_en;   /* manual bkops enable bit */
         unsigned int            data_sector_size;       /* 512 bytes or 4KB */
         unsigned int            data_tag_unit_size;     /* DATA TAG UNIT size */
         unsigned int            boot_ro_lock;           /* ro lock support */
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index fb97b5cc91cd..124f562118b8 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -428,6 +428,11 @@ struct _mmc_csd {
 #define EXT_CSD_BKOPS_LEVEL_2           0x2
 
 /*
+ * BKOPS modes
+ */
+#define EXT_CSD_MANUAL_BKOPS_MASK       0x01
+
+/*
  * MMC_SWITCH access modes
  */