From e6f99a5611e1ff59555f93de88e527070f8548af Mon Sep 17 00:00:00 2001 From: Lei Wen Date: Wed, 22 Jun 2011 17:03:31 +0000 Subject: MMC: add erase function to both mmc and sd Erase is a very basic function since the begin of sd specification is announced. Although we could write a bulk of full 0xff memory to the range to take place of erase, it is more convenient and safe to implement the erase function itself. Signed-off-by: Lei Wen Signed-off-by: Andy Fleming Acked-by: Mike Frysinger --- include/mmc.h | 8 ++++++++ include/part.h | 3 +++ 2 files changed, 11 insertions(+) (limited to 'include') diff --git a/include/mmc.h b/include/mmc.h index aeacdee3095..1c8a3607177 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -75,6 +75,9 @@ #define MMC_CMD_READ_MULTIPLE_BLOCK 18 #define MMC_CMD_WRITE_SINGLE_BLOCK 24 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25 +#define MMC_CMD_ERASE_GROUP_START 35 +#define MMC_CMD_ERASE_GROUP_END 36 +#define MMC_CMD_ERASE 38 #define MMC_CMD_APP_CMD 55 #define MMC_CMD_SPI_READ_OCR 58 #define MMC_CMD_SPI_CRC_ON_OFF 59 @@ -84,6 +87,8 @@ #define SD_CMD_SEND_IF_COND 8 #define SD_CMD_APP_SET_BUS_WIDTH 6 +#define SD_CMD_ERASE_WR_BLK_START 32 +#define SD_CMD_ERASE_WR_BLK_END 33 #define SD_CMD_APP_SEND_OP_COND 41 #define SD_CMD_APP_SEND_SCR 51 @@ -99,6 +104,8 @@ #define OCR_VOLTAGE_MASK 0x007FFF80 #define OCR_ACCESS_MODE 0x60000000 +#define SECURE_ERASE 0x80000000 + #define MMC_STATUS_MASK (~0x0206BF7F) #define MMC_STATUS_RDY_FOR_DATA (1 << 8) #define MMC_STATUS_CURR_STATE (0xf << 9) @@ -285,6 +292,7 @@ struct mmc { uint tran_speed; uint read_bl_len; uint write_bl_len; + uint erase_grp_size; u64 capacity; block_dev_desc_t block_dev; int (*send_cmd)(struct mmc *mmc, diff --git a/include/part.h b/include/part.h index 3cdae0214ee..52435118290 100644 --- a/include/part.h +++ b/include/part.h @@ -49,6 +49,9 @@ typedef struct block_dev_desc { unsigned long start, lbaint_t blkcnt, const void *buffer); + unsigned long (*block_erase)(int dev, + unsigned long start, + lbaint_t blkcnt); void *priv; /* driver private struct pointer */ }block_dev_desc_t; -- cgit v1.3.1