+#define SD_CMD_APP_SEND_SCR 51
+
+/* SCR definitions in different words */
+#define SD_HIGHSPEED_BUSY 0x00020000
+#define SD_HIGHSPEED_SUPPORTED 0x00020000
+
+#define MMC_HS_TIMING 0x00000100
+#define MMC_HS_52MHZ 0x2
+
+#define OCR_BUSY 0x80000000
+#define OCR_HCS 0x40000000
+#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)
+#define MMC_STATUS_ERROR (1 << 19)
+
+#define MMC_STATE_PRG (7 << 9)
+
+#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 */
+#define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
+#define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
+#define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
+#define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
+#define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
+#define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
+#define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
+#define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
+#define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
+#define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
+#define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
+#define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
+#define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
+#define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
+
+#define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
+#define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte
+ addressed by index which are
+ 1 in value field */
+#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
+ addressed by index, which are
+ 1 in value field */
+#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
+
+#define SD_SWITCH_CHECK 0
+#define SD_SWITCH_SWITCH 1
+
+/*
+ * EXT_CSD fields
+ */
+#define EXT_CSD_PARTITIONING_SUPPORT 160 /* RO */
+#define EXT_CSD_ERASE_GROUP_DEF 175 /* R/W */
+#define EXT_CSD_PART_CONF 179 /* R/W */
+#define EXT_CSD_BUS_WIDTH 183 /* R/W */
+#define EXT_CSD_HS_TIMING 185 /* R/W */
+#define EXT_CSD_REV 192 /* RO */
+#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 */
+
+/*
+ * EXT_CSD field definitions
+ */
+
+#define EXT_CSD_CMD_SET_NORMAL (1 << 0)
+#define EXT_CSD_CMD_SET_SECURE (1 << 1)
+#define EXT_CSD_CMD_SET_CPSECURE (1 << 2)
+
+#define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
+#define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
+
+#define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
+#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 R1_ILLEGAL_COMMAND (1 << 22)
+#define R1_APP_CMD (1 << 5)
+
+#define MMC_RSP_PRESENT (1 << 0)
+#define MMC_RSP_136 (1 << 1) /* 136 bit response */
+#define MMC_RSP_CRC (1 << 2) /* expect valid crc */
+#define MMC_RSP_BUSY (1 << 3) /* card may send busy */
+#define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
+
+#define MMC_RSP_NONE (0)
+#define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
+ MMC_RSP_BUSY)
+#define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
+#define MMC_RSP_R3 (MMC_RSP_PRESENT)
+#define MMC_RSP_R4 (MMC_RSP_PRESENT)
+#define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+#define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
+
+#define MMCPART_NOAVAILABLE (0xff)
+#define PART_ACCESS_MASK (0x7)
+#define PART_SUPPORT (0x1)
+
+struct mmc_cid {
+ unsigned long psn;
+ unsigned short oid;
+ unsigned char mid;
+ unsigned char prv;
+ unsigned char mdt;
+ char pnm[7];
+};
+
+/*
+ * WARNING!
+ *
+ * This structure is used by atmel_mci.c only.
+ * It works for the AVR32 architecture but NOT
+ * for ARM/AT91 architectures.
+ * Its use is highly depreciated.
+ * After the atmel_mci.c driver for AVR32 has
+ * been replaced this structure will be removed.
+ */
+struct mmc_csd
+{
+ u8 csd_structure:2,
+ spec_vers:4,
+ rsvd1:2;
+ u8 taac;
+ u8 nsac;
+ u8 tran_speed;
+ u16 ccc:12,
+ read_bl_len:4;
+ u64 read_bl_partial:1,
+ write_blk_misalign:1,
+ read_blk_misalign:1,
+ dsr_imp:1,
+ rsvd2:2,
+ c_size:12,
+ vdd_r_curr_min:3,
+ vdd_r_curr_max:3,
+ vdd_w_curr_min:3,
+ vdd_w_curr_max:3,
+ c_size_mult:3,
+ sector_size:5,
+ erase_grp_size:5,
+ wp_grp_size:5,
+ wp_grp_enable:1,
+ default_ecc:2,
+ r2w_factor:3,
+ write_bl_len:4,
+ write_bl_partial:1,
+ rsvd3:5;
+ u8 file_format_grp:1,
+ copy:1,
+ perm_write_protect:1,
+ tmp_write_protect:1,
+ file_format:2,
+ ecc:2;
+ u8 crc:7;
+ u8 one:1;
+};
+
+struct mmc_cmd {
+ ushort cmdidx;
+ uint resp_type;
+ uint cmdarg;
+ uint response[4];
+ uint flags;
+};
+
+struct mmc_data {
+ union {
+ char *dest;
+ const char *src; /* src buffers don't get written to */
+ };
+ uint flags;
+ uint blocks;
+ uint blocksize;
+};
+
+struct mmc {
+ struct list_head link;
+ char name[32];
+ void *priv;
+ uint voltages;
+ uint version;
+ uint has_init;
+ uint f_min;
+ uint f_max;
+ int high_capacity;
+ uint bus_width;
+ uint clock;
+ uint card_caps;
+ uint host_caps;
+ uint ocr;
+ uint scr[2];
+ uint csd[4];
+ uint cid[4];
+ ushort rca;
+ char part_config;
+ char part_num;
+ 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,
+ struct mmc_cmd *cmd, struct mmc_data *data);
+ void (*set_ios)(struct mmc *mmc);
+ int (*init)(struct mmc *mmc);
+ int (*getcd)(struct mmc *mmc);
+ uint b_max;
+};
+
+int mmc_register(struct mmc *mmc);
+int mmc_initialize(bd_t *bis);
+int mmc_init(struct mmc *mmc);
+int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
+void mmc_set_clock(struct mmc *mmc, uint clock);
+struct mmc *find_mmc_device(int dev_num);
+int mmc_set_dev(int dev_num);
+void print_mmc_devices(char separator);
+int get_mmc_num(void);
+int board_mmc_getcd(struct mmc *mmc);
+int mmc_switch_part(int dev_num, unsigned int part_num);
+int mmc_getcd(struct mmc *mmc);