mmc: sd: extracting erase related information from sd status
Add function to read SD_STATUS information.
According to the information, get erase_timeout/erase_size/erase_offset.
Add a structure sd_ssr to include the erase related information.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Cc: Jaehoon Chung <jh80.chung@samsung.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Stefan Wahren <stefan.wahren@i2se.com>
Cc: Clemens Gruber <clemens.gruber@pqgruber.com>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Eric Nelson <eric@nelint.com>
Cc: Stephen Warren <swarren@nvidia.com>
diff --git a/include/mmc.h b/include/mmc.h
index aa6d5d1..e815eb3 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -11,6 +11,7 @@
#define _MMC_H_
#include <linux/list.h>
+#include <linux/sizes.h>
#include <linux/compiler.h>
#include <part.h>
@@ -102,6 +103,7 @@
#define SD_CMD_SWITCH_UHS18V 11
#define SD_CMD_APP_SET_BUS_WIDTH 6
+#define SD_CMD_APP_SD_STATUS 13
#define SD_CMD_ERASE_WR_BLK_START 32
#define SD_CMD_ERASE_WR_BLK_END 33
#define SD_CMD_APP_SEND_OP_COND 41
@@ -392,6 +394,12 @@
unsigned char part_type;
};
+struct sd_ssr {
+ unsigned int au; /* In sectors */
+ unsigned int erase_timeout; /* In milliseconds */
+ unsigned int erase_offset; /* In milliseconds */
+};
+
/*
* With CONFIG_DM_MMC enabled, struct mmc can be accessed from the MMC device
* with mmc_get_mmc_dev().
@@ -426,6 +434,7 @@
uint write_bl_len;
uint erase_grp_size; /* in 512-byte sectors */
uint hc_wp_grp_size; /* in 512-byte sectors */
+ struct sd_ssr ssr; /* SD status register */
u64 capacity;
u64 capacity_user;
u64 capacity_boot;