Read from the device EXT_CSD and set to the card->ext_csd structure
Change-Id: I940b1612f5bac078c330ad3829d7aa5f0ba0989e
Signed-off-by: Uri Yanai <uri.yanai@xxxxxxxxxxx>
Signed-off-by: Alex Lemberg <alex.lemberg@xxxxxxxxxxx>
---
drivers/mmc/core/mmc.c | 10 ++++++++--
include/linux/mmc/card.h | 1 +
include/linux/mmc/mmc.h | 1 +
3 files changed, 10 insertions(+), 2 deletions(-)
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index c0e2507..f70f6a1 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -530,8 +530,14 @@ static int mmc_decode_ext_csd(struct mmc_card *card, u8 *ext_csd)
EXT_CSD_MANUAL_BKOPS_MASK);
card->ext_csd.raw_bkops_status =
ext_csd[EXT_CSD_BKOPS_STATUS];
- if (!card->ext_csd.man_bkops_en)
- pr_debug("%s: MAN_BKOPS_EN bit is not set\n",
+ if (card->ext_csd.man_bkops_en)
+ pr_debug("%s: MAN_BKOPS_EN bit is set\n",
+ mmc_hostname(card->host));
+ card->ext_csd.auto_bkops_en =
+ (ext_csd[EXT_CSD_BKOPS_EN] &
+ EXT_CSD_AUTO_BKOPS_MASK);
+ if (card->ext_csd.auto_bkops_en)
+ pr_debug("%s: AUTO_BKOPS_EN bit is set\n",
mmc_hostname(card->host));
}
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 00449e5..e3f1031 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -84,6 +84,7 @@ struct mmc_ext_csd {
unsigned int hpi_cmd; /* cmd used as HPI */
bool bkops; /* background support bit */
bool man_bkops_en; /* manual bkops enable bit */
+ bool auto_bkops_en; /* auto 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 a074082..126b8d5 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -449,6 +449,7 @@ struct _mmc_csd {
* BKOPS modes
*/
#define EXT_CSD_MANUAL_BKOPS_MASK 0x01
+#define EXT_CSD_AUTO_BKOPS_MASK 0x02
/*
* Command Queue
--
1.9.1
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
