diff options
Diffstat (limited to 'include/mmc.h')
| -rw-r--r-- | include/mmc.h | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/include/mmc.h b/include/mmc.h index 8bbc6b6ebec..f88f672f111 100644 --- a/include/mmc.h +++ b/include/mmc.h @@ -68,6 +68,7 @@ #define UNUSABLE_ERR -17 /* Unusable Card */ #define COMM_ERR -18 /* Communications Error */ #define TIMEOUT -19 +#define IN_PROGRESS -20 /* operation is in progress */ #define MMC_CMD_GO_IDLE_STATE 0 #define MMC_CMD_SEND_OP_COND 1 @@ -92,6 +93,11 @@ #define MMC_CMD_APP_CMD 55 #define MMC_CMD_SPI_READ_OCR 58 #define MMC_CMD_SPI_CRC_ON_OFF 59 +#define MMC_CMD_RES_MAN 62 + +#define MMC_CMD62_ARG1 0xefac62ec +#define MMC_CMD62_ARG2 0xcbaea7 + #define SD_CMD_SEND_RELATIVE_ADDR 3 #define SD_CMD_SWITCH_FUNC 6 @@ -159,6 +165,7 @@ */ #define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */ #define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */ +#define EXT_CSD_BOOT_BUS_WIDTH 177 #define EXT_CSD_PART_CONF 179 /* R/W */ #define EXT_CSD_BUS_WIDTH 183 /* R/W */ #define EXT_CSD_HS_TIMING 185 /* R/W */ @@ -183,6 +190,16 @@ #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */ #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */ +#define EXT_CSD_BOOT_ACK_ENABLE (1 << 6) +#define EXT_CSD_BOOT_PARTITION_ENABLE (1 << 3) +#define EXT_CSD_PARTITION_ACCESS_ENABLE (1 << 0) +#define EXT_CSD_PARTITION_ACCESS_DISABLE (0 << 0) + +#define EXT_CSD_BOOT_ACK(x) (x << 6) +#define EXT_CSD_BOOT_PART_NUM(x) (x << 3) +#define EXT_CSD_PARTITION_ACCESS(x) (x << 0) + + #define R1_ILLEGAL_COMMAND (1 << 22) #define R1_APP_CMD (1 << 5) @@ -210,6 +227,11 @@ /* Maximum block size for MMC */ #define MMC_MAX_BLOCK_LEN 512 +/* The number of MMC physical partitions. These consist of: + * boot partitions (2), general purpose partitions (4) in MMC v4.4. + */ +#define MMC_NUM_BOOT_PARTITION 2 + struct mmc_cid { unsigned long psn; unsigned short oid; @@ -270,6 +292,10 @@ struct mmc { int (*getcd)(struct mmc *mmc); int (*getwp)(struct mmc *mmc); uint b_max; + char op_cond_pending; /* 1 if we are waiting on an op_cond command */ + char init_in_progress; /* 1 if we have done mmc_start_init() */ + char preinit; /* start init as early as possible */ + uint op_cond_response; /* the response byte from the last op_cond */ }; int mmc_register(struct mmc *mmc); @@ -286,6 +312,36 @@ int mmc_switch_part(int dev_num, unsigned int part_num); int mmc_getcd(struct mmc *mmc); int mmc_getwp(struct mmc *mmc); void spl_mmc_load(void) __noreturn; +/* Function to change the size of boot partition and rpmb partitions */ +int mmc_boot_partition_size_change(struct mmc *mmc, unsigned long bootsize, + unsigned long rpmbsize); +/* Function to send commands to open/close the specified boot partition */ +int mmc_boot_part_access(struct mmc *mmc, u8 ack, u8 part_num, u8 access); + +/** + * Start device initialization and return immediately; it does not block on + * polling OCR (operation condition register) status. Then you should call + * mmc_init, which would block on polling OCR status and complete the device + * initializatin. + * + * @param mmc Pointer to a MMC device struct + * @return 0 on success, IN_PROGRESS on waiting for OCR status, <0 on error. + */ +int mmc_start_init(struct mmc *mmc); + +/** + * Set preinit flag of mmc device. + * + * This will cause the device to be pre-inited during mmc_initialize(), + * which may save boot time if the device is not accessed until later. + * Some eMMC devices take 200-300ms to init, but unfortunately they + * must be sent a series of commands to even get them to start preparing + * for operation. + * + * @param mmc Pointer to a MMC device struct + * @param preinit preinit flag value + */ +void mmc_set_preinit(struct mmc *mmc, int preinit); #ifdef CONFIG_GENERIC_MMC #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI) |