[PATCH v2 06/10] mci: describe more command structure in mci.h

[Ahmad Fatoum <a.fatoum@pengutronix.de>]

This introduces no functional change, but adds a number of definitions
that will come in handy when adding erase support in a later commit.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
---
v1 -> v2:
  - no change
---
 include/mci.h | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 60 insertions(+), 1 deletion(-)

diff --git a/include/mci.h b/include/mci.h
index 4f1ff9dc57c8..610040937ee5 100644
--- a/include/mci.h
+++ b/include/mci.h
@@ -14,6 +14,7 @@
 #define _MCI_H_
 
 #include <linux/list.h>
+#include <linux/bits.h>
 #include <block.h>
 #include <fs.h>
 #include <regulator.h>
@@ -28,6 +29,7 @@
 #define SD_VERSION_1_0		(SD_VERSION_SD | 0x100)
 #define SD_VERSION_1_10		(SD_VERSION_SD | 0x1a0)
 #define SD_VERSION_2		(SD_VERSION_SD | 0x200)
+#define SD_VERSION_3		(SD_VERSION_SD | 0x300)
 
 /* Firmware revisions for MMC cards */
 #define MMC_VERSION_MMC		0x10000
@@ -59,7 +61,8 @@
 /* Mask of all caps for bus width */
 #define MMC_CAP_BIT_DATA_MASK		(MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA)
 
-#define SD_DATA_4BIT		0x00040000
+#define SD_DATA_4BIT			BIT(18)
+#define SD_DATA_STAT_AFTER_ERASE	BIT(23)
 
 #define IS_SD(x) (x->version & SD_VERSION_SD)
 
@@ -90,11 +93,21 @@
 #define MMC_CMD_SPI_READ_OCR		58
 #define MMC_CMD_SPI_CRC_ON_OFF		59
 
+  /* class 5 */
+#define MMC_ERASE_GROUP_START    35   /* ac   [31:0] data addr   R1  */
+#define MMC_ERASE_GROUP_END      36   /* ac   [31:0] data addr   R1  */
+#define MMC_ERASE                38   /* ac                      R1b */
+
 #define SD_CMD_SEND_RELATIVE_ADDR	3
 #define SD_CMD_SWITCH_FUNC		6
 #define SD_CMD_SEND_IF_COND		8
 
+  /* class 5 */
+#define SD_ERASE_WR_BLK_START    32   /* ac   [31:0] data addr   R1  */
+#define SD_ERASE_WR_BLK_END      33   /* ac   [31:0] data addr   R1  */
+
 #define SD_CMD_APP_SET_BUS_WIDTH	6
+#define SD_CMD_APP_SD_STATUS		13
 #define SD_CMD_APP_SEND_OP_COND		41
 #define SD_CMD_APP_SEND_SCR		51
 
@@ -110,6 +123,35 @@
 /** card's response in its OCR if it is a high capacity card */
 #define OCR_HCS			0x40000000
 
+/*
+ * Card Command Classes (CCC)
+ */
+#define CCC_BASIC		(1<<0)	/* (0) Basic protocol functions */
+					/* (CMD0,1,2,3,4,7,9,10,12,13,15) */
+					/* (and for SPI, CMD58,59) */
+#define CCC_STREAM_READ		(1<<1)	/* (1) Stream read commands */
+					/* (CMD11) */
+#define CCC_BLOCK_READ		(1<<2)	/* (2) Block read commands */
+					/* (CMD16,17,18) */
+#define CCC_STREAM_WRITE	(1<<3)	/* (3) Stream write commands */
+					/* (CMD20) */
+#define CCC_BLOCK_WRITE		(1<<4)	/* (4) Block write commands */
+					/* (CMD16,24,25,26,27) */
+#define CCC_ERASE		(1<<5)	/* (5) Ability to erase blocks */
+					/* (CMD32,33,34,35,36,37,38,39) */
+#define CCC_WRITE_PROT		(1<<6)	/* (6) Able to write protect blocks */
+					/* (CMD28,29,30) */
+#define CCC_LOCK_CARD		(1<<7)	/* (7) Able to lock down card */
+					/* (CMD16,CMD42) */
+#define CCC_APP_SPEC		(1<<8)	/* (8) Application specific */
+					/* (CMD55,56,57,ACMD*) */
+#define CCC_IO_MODE		(1<<9)	/* (9) I/O mode */
+					/* (CMD5,39,40,52,53) */
+#define CCC_SWITCH		(1<<10)	/* (10) High speed switch */
+					/* (CMD6,34,35,36,37,50) */
+					/* (11) Reserved */
+					/* (CMD?) */
+
 #define MMC_VDD_165_195		0x00000080	/* VDD voltage 1.65 - 1.95 */
 #define MMC_VDD_20_21		0x00000100	/* VDD voltage 2.0 ~ 2.1 */
 #define MMC_VDD_21_22		0x00000200	/* VDD voltage 2.1 ~ 2.2 */
@@ -139,6 +181,21 @@
 #define SD_SWITCH_CHECK		0
 #define SD_SWITCH_SWITCH	1
 
+/*
+ * Erase/trim/discard
+ */
+#define MMC_ERASE_ARG			0x00000000
+#define MMC_SECURE_ERASE_ARG		0x80000000
+#define MMC_TRIM_ARG			0x00000001
+#define MMC_DISCARD_ARG			0x00000003
+#define MMC_SECURE_TRIM1_ARG		0x80000001
+#define MMC_SECURE_TRIM2_ARG		0x80008000
+#define MMC_SECURE_ARGS			0x80000000
+#define MMC_TRIM_OR_DISCARD_ARGS	0x00008003
+
+#define SD_ERASE_ARG			0x00000000
+#define SD_DISCARD_ARG			0x00000001
+
 /*
  * EXT_CSD fields
  */
@@ -338,6 +395,8 @@
 #define EXT_CSD_TIMING_HS400	3	/* HS400 */
 #define EXT_CSD_DRV_STR_SHIFT	4	/* Driver Strength shift */
 
+#define EXT_CSD_SEC_FEATURE_TRIM_EN	(1 << 4) /* Support secure & insecure trim */
+
 #define R1_ILLEGAL_COMMAND		(1 << 22)
 #define R1_STATUS(x)			(x & 0xFFF9A000)
 #define R1_CURRENT_STATE(x)		((x & 0x00001E00) >> 9)	/* sx, b (4 bits) */
-- 
2.39.2