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-rw-r--r--include/mmc.h244
1 files changed, 233 insertions, 11 deletions
diff --git a/include/mmc.h b/include/mmc.h
index 19c76fe..b9b27ba 100644
--- a/include/mmc.h
+++ b/include/mmc.h
@@ -1,6 +1,8 @@
/*
- * (C) Copyright 2000-2003
- * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ * Copyright 2008, Freescale Semiconductor, Inc
+ * Andy Fleming
+ *
+ * Based (loosely) on the Linux code
*
* See file CREDITS for list of people who contributed to this
* project.
@@ -23,35 +25,255 @@
#ifndef _MMC_H_
#define _MMC_H_
-#include <asm/arch/mmc.h>
-/* MMC command numbers */
+#include <linux/list.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 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_MODE_HS 0x001
+#define MMC_MODE_HS_52MHz 0x010
+#define MMC_MODE_4BIT 0x100
+#define MMC_MODE_8BIT 0x200
+
+#define SD_DATA_4BIT 0x00040000
+
+#define IS_SD(x) (mmc->version & SD_VERSION_SD)
+
+#define MMC_DATA_READ 1
+#define MMC_DATA_WRITE 2
+
+#define NO_CARD_ERR -16 /* No SD/MMC card inserted */
+#define UNUSABLE_ERR -17 /* Unusable Card */
+#define COMM_ERR -18 /* Communications Error */
+#define TIMEOUT -19
+
#define MMC_CMD_GO_IDLE_STATE 0
#define MMC_CMD_SEND_OP_COND 1
#define MMC_CMD_ALL_SEND_CID 2
#define MMC_CMD_SET_RELATIVE_ADDR 3
#define MMC_CMD_SET_DSR 4
+#define MMC_CMD_SWITCH 6
#define MMC_CMD_SELECT_CARD 7
+#define MMC_CMD_SEND_EXT_CSD 8
#define MMC_CMD_SEND_CSD 9
#define MMC_CMD_SEND_CID 10
+#define MMC_CMD_STOP_TRANSMISSION 12
#define MMC_CMD_SEND_STATUS 13
#define MMC_CMD_SET_BLOCKLEN 16
#define MMC_CMD_READ_SINGLE_BLOCK 17
#define MMC_CMD_READ_MULTIPLE_BLOCK 18
-#define MMC_CMD_WRITE_BLOCK 24
+#define MMC_CMD_WRITE_SINGLE_BLOCK 24
+#define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
#define MMC_CMD_APP_CMD 55
-/* SD Card command numbers */
#define SD_CMD_SEND_RELATIVE_ADDR 3
-#define SD_CMD_SWITCH 6
+#define SD_CMD_SWITCH_FUNC 6
#define SD_CMD_SEND_IF_COND 8
#define SD_CMD_APP_SET_BUS_WIDTH 6
#define SD_CMD_APP_SEND_OP_COND 41
+#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 0x80
+#define OCR_HCS 0x40000000
+
+#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_BUS_WIDTH 183 /* R/W */
+#define EXT_CSD_HS_TIMING 185 /* R/W */
+#define EXT_CSD_CARD_TYPE 196 /* RO */
+#define EXT_CSD_REV 192 /* RO */
+#define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
+
+/*
+ * 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)
+
+
+struct mmc_cid {
+ unsigned long psn;
+ unsigned short oid;
+ unsigned char mid;
+ unsigned char prv;
+ unsigned char mdt;
+ char pnm[7];
+};
+
+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;
+ char response[18];
+ 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 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];
+ char cid[16];
+ ushort rca;
+ uint tran_speed;
+ uint read_bl_len;
+ uint write_bl_len;
+ 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 mmc_init(int verbose);
-int mmc_read(ulong src, uchar *dst, int size);
-int mmc_write(uchar *src, ulong dst, int size);
-int mmc2info(ulong addr);
+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);
+struct mmc *find_mmc_device(int dev_num);
+void print_mmc_devices(char separator);
+#ifndef CONFIG_GENERIC_MMC
+int mmc_legacy_init(int verbose);
+#endif
#endif /* _MMC_H_ */
generated by cgit v1.1 at 2024-12-28 10:17:32 +0000