mmc: core: mmc sanitize feature support for v4.5

In the v4.5, there's no secure erase & trim support.
Instead it supports the sanitize feature.

Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>

2 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h
index 56e5625b6f41..9585835cbc42 100644
--- a/include/linux/mmc/core.h
+++ b/include/linux/mmc/core.h
@@ -156,6 +156,7 @@ extern int mmc_erase(struct mmc_card *card, unsigned int from, unsigned int nr,
                      unsigned int arg);
 extern int mmc_can_erase(struct mmc_card *card);
 extern int mmc_can_trim(struct mmc_card *card);
+extern int mmc_can_sanitize(struct mmc_card *card);
 extern int mmc_can_secure_erase_trim(struct mmc_card *card);
 extern int mmc_erase_group_aligned(struct mmc_card *card, unsigned int from,
                                    unsigned int nr);
diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h
index 02e9e3de9609..8a05a21fc7c3 100644
--- a/include/linux/mmc/mmc.h
+++ b/include/linux/mmc/mmc.h
@@ -275,6 +275,7 @@ struct _mmc_csd {
 #define EXT_CSD_PARTITION_ATTRIBUTE     156     /* R/W */
 #define EXT_CSD_PARTITION_SUPPORT       160     /* RO */
 #define EXT_CSD_RST_N_FUNCTION          162     /* R/W */
+#define EXT_CSD_SANITIZE_START          165     /* W */
 #define EXT_CSD_WR_REL_PARAM            166     /* RO */
 #define EXT_CSD_ERASE_GROUP_DEF         175     /* R/W */
 #define EXT_CSD_PART_CONFIG             179     /* R/W */
@@ -343,6 +344,7 @@ struct _mmc_csd {
 #define EXT_CSD_SEC_ER_EN       BIT(0)
 #define EXT_CSD_SEC_BD_BLK_EN   BIT(2)
 #define EXT_CSD_SEC_GB_CL_EN    BIT(4)
+#define EXT_CSD_SEC_SANITIZE    BIT(6)  /* v4.5 only */
 
 #define EXT_CSD_RST_N_EN_MASK   0x3
 #define EXT_CSD_RST_N_ENABLED   1       /* RST_n is enabled on card */