#define _MMC_H_
#include <linux/list.h>
+#include <linux/compiler.h>
#define SD_VERSION_SD 0x20000
-#define SD_VERSION_2 (SD_VERSION_SD | 0x20)
-#define SD_VERSION_1_0 (SD_VERSION_SD | 0x10)
-#define SD_VERSION_1_10 (SD_VERSION_SD | 0x1a)
+#define SD_VERSION_3 (SD_VERSION_SD | 0x300)
+#define SD_VERSION_2 (SD_VERSION_SD | 0x200)
+#define SD_VERSION_1_0 (SD_VERSION_SD | 0x100)
+#define SD_VERSION_1_10 (SD_VERSION_SD | 0x10a)
#define MMC_VERSION_MMC 0x10000
#define MMC_VERSION_UNKNOWN (MMC_VERSION_MMC)
-#define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x12)
-#define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x14)
-#define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x22)
-#define MMC_VERSION_3 (MMC_VERSION_MMC | 0x30)
-#define MMC_VERSION_4 (MMC_VERSION_MMC | 0x40)
+#define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x102)
+#define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x104)
+#define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x202)
+#define MMC_VERSION_3 (MMC_VERSION_MMC | 0x300)
+#define MMC_VERSION_4 (MMC_VERSION_MMC | 0x400)
+#define MMC_VERSION_4_1 (MMC_VERSION_MMC | 0x401)
+#define MMC_VERSION_4_2 (MMC_VERSION_MMC | 0x402)
+#define MMC_VERSION_4_3 (MMC_VERSION_MMC | 0x403)
+#define MMC_VERSION_4_41 (MMC_VERSION_MMC | 0x429)
+#define MMC_VERSION_4_5 (MMC_VERSION_MMC | 0x405)
#define MMC_MODE_HS 0x001
#define MMC_MODE_HS_52MHz 0x010
#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
#define EXT_CSD_CARD_TYPE 196 /* RO */
#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
#define EXT_CSD_HC_ERASE_GRP_SIZE 224 /* RO */
+#define EXT_CSD_BOOT_MULT 226 /* RO */
/*
* EXT_CSD field definitions
#define PART_ACCESS_MASK (0x7)
#define PART_SUPPORT (0x1)
+/* Maximum block size for MMC */
+#define MMC_MAX_BLOCK_LEN 512
+
struct mmc_cid {
unsigned long psn;
unsigned short oid;
uint resp_type;
uint cmdarg;
uint response[4];
- uint flags;
};
struct mmc_data {
void (*set_ios)(struct mmc *mmc);
int (*init)(struct mmc *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);
int board_mmc_getcd(struct mmc *mmc);
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;
+
+/**
+ * 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)