mmc: core: Add cache control for eMMC4.5 device
This patch adds cache feature of eMMC4.5 Spec.
If device supports cache capability, host can utilize some specific
operations.
Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 5513785..32492b7 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -51,6 +51,7 @@
u8 rel_sectors;
u8 rel_param;
u8 part_config;
+ u8 cache_ctrl;
u8 rst_n_function;
unsigned int part_time; /* Units: ms */
unsigned int sa_timeout; /* Units: 100ns */
@@ -67,6 +68,7 @@
bool enhanced_area_en; /* enable bit */
unsigned long long enhanced_area_offset; /* Units: Byte */
unsigned int enhanced_area_size; /* Units: KB */
+ unsigned int cache_size; /* Units: KB */
u8 raw_partition_support; /* 160 */
u8 raw_erased_mem_count; /* 181 */
u8 raw_ext_csd_structure; /* 194 */