From 3697e5992f89c923aca17d7d9174739da28cb3cd Mon Sep 17 00:00:00 2001
From: Peng Fan <van.freenix@gmail.com>
Date: Thu, 1 Sep 2016 11:13:38 +0800
Subject: 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>
---
 include/mmc.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'include')

diff --git a/include/mmc.h b/include/mmc.h
index aa6d5d1d4f..e815eb3736 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 @@ struct mmc_config {
 	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 @@ struct mmc {
 	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;
-- 
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