2 * Copyright 2008, Freescale Semiconductor, Inc
5 * Based (loosely) on the Linux code
7 * See file CREDITS for list of people who contributed to this
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 #include <linux/list.h>
31 #define SD_VERSION_SD 0x20000
32 #define SD_VERSION_2 (SD_VERSION_SD | 0x20)
33 #define SD_VERSION_1_0 (SD_VERSION_SD | 0x10)
34 #define SD_VERSION_1_10 (SD_VERSION_SD | 0x1a)
35 #define MMC_VERSION_MMC 0x10000
36 #define MMC_VERSION_UNKNOWN (MMC_VERSION_MMC)
37 #define MMC_VERSION_1_2 (MMC_VERSION_MMC | 0x12)
38 #define MMC_VERSION_1_4 (MMC_VERSION_MMC | 0x14)
39 #define MMC_VERSION_2_2 (MMC_VERSION_MMC | 0x22)
40 #define MMC_VERSION_3 (MMC_VERSION_MMC | 0x30)
41 #define MMC_VERSION_4 (MMC_VERSION_MMC | 0x40)
43 #define MMC_MODE_HS 0x001
44 #define MMC_MODE_HS_52MHz 0x010
45 #define MMC_MODE_4BIT 0x100
46 #define MMC_MODE_8BIT 0x200
48 #define SD_DATA_4BIT 0x00040000
50 #define IS_SD(x) (x->version & SD_VERSION_SD)
52 #define MMC_DATA_READ 1
53 #define MMC_DATA_WRITE 2
55 #define NO_CARD_ERR -16 /* No SD/MMC card inserted */
56 #define UNUSABLE_ERR -17 /* Unusable Card */
57 #define COMM_ERR -18 /* Communications Error */
60 #define MMC_CMD_GO_IDLE_STATE 0
61 #define MMC_CMD_SEND_OP_COND 1
62 #define MMC_CMD_ALL_SEND_CID 2
63 #define MMC_CMD_SET_RELATIVE_ADDR 3
64 #define MMC_CMD_SET_DSR 4
65 #define MMC_CMD_SWITCH 6
66 #define MMC_CMD_SELECT_CARD 7
67 #define MMC_CMD_SEND_EXT_CSD 8
68 #define MMC_CMD_SEND_CSD 9
69 #define MMC_CMD_SEND_CID 10
70 #define MMC_CMD_STOP_TRANSMISSION 12
71 #define MMC_CMD_SEND_STATUS 13
72 #define MMC_CMD_SET_BLOCKLEN 16
73 #define MMC_CMD_READ_SINGLE_BLOCK 17
74 #define MMC_CMD_READ_MULTIPLE_BLOCK 18
75 #define MMC_CMD_WRITE_SINGLE_BLOCK 24
76 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
77 #define MMC_CMD_APP_CMD 55
79 #define SD_CMD_SEND_RELATIVE_ADDR 3
80 #define SD_CMD_SWITCH_FUNC 6
81 #define SD_CMD_SEND_IF_COND 8
83 #define SD_CMD_APP_SET_BUS_WIDTH 6
84 #define SD_CMD_APP_SEND_OP_COND 41
85 #define SD_CMD_APP_SEND_SCR 51
87 /* SCR definitions in different words */
88 #define SD_HIGHSPEED_BUSY 0x00020000
89 #define SD_HIGHSPEED_SUPPORTED 0x00020000
91 #define MMC_HS_TIMING 0x00000100
92 #define MMC_HS_52MHZ 0x2
94 #define OCR_BUSY 0x80000000
95 #define OCR_HCS 0x40000000
97 #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */
98 #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */
99 #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */
100 #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
101 #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
102 #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
103 #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
104 #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
105 #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
106 #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
107 #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
108 #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
109 #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
110 #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
111 #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
112 #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
113 #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
115 #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
116 #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte
117 addressed by index which are
119 #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
120 addressed by index, which are
122 #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
124 #define SD_SWITCH_CHECK 0
125 #define SD_SWITCH_SWITCH 1
131 #define EXT_CSD_BUS_WIDTH 183 /* R/W */
132 #define EXT_CSD_HS_TIMING 185 /* R/W */
133 #define EXT_CSD_CARD_TYPE 196 /* RO */
134 #define EXT_CSD_REV 192 /* RO */
135 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
138 * EXT_CSD field definitions
141 #define EXT_CSD_CMD_SET_NORMAL (1<<0)
142 #define EXT_CSD_CMD_SET_SECURE (1<<1)
143 #define EXT_CSD_CMD_SET_CPSECURE (1<<2)
145 #define EXT_CSD_CARD_TYPE_26 (1<<0) /* Card can run at 26MHz */
146 #define EXT_CSD_CARD_TYPE_52 (1<<1) /* Card can run at 52MHz */
148 #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
149 #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
150 #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
152 #define R1_ILLEGAL_COMMAND (1 << 22)
153 #define R1_APP_CMD (1 << 5)
155 #define MMC_RSP_PRESENT (1 << 0)
156 #define MMC_RSP_136 (1 << 1) /* 136 bit response */
157 #define MMC_RSP_CRC (1 << 2) /* expect valid crc */
158 #define MMC_RSP_BUSY (1 << 3) /* card may send busy */
159 #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
161 #define MMC_RSP_NONE (0)
162 #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
163 #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
165 #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
166 #define MMC_RSP_R3 (MMC_RSP_PRESENT)
167 #define MMC_RSP_R4 (MMC_RSP_PRESENT)
168 #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
169 #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
170 #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
192 u64 read_bl_partial:1,
193 write_blk_misalign:1,
212 u8 file_format_grp:1,
214 perm_write_protect:1,
233 const char *src; /* src buffers don't get written to */
241 struct list_head link;
262 block_dev_desc_t block_dev;
263 int (*send_cmd)(struct mmc *mmc,
264 struct mmc_cmd *cmd, struct mmc_data *data);
265 void (*set_ios)(struct mmc *mmc);
266 int (*init)(struct mmc *mmc);
269 int mmc_register(struct mmc *mmc);
270 int mmc_initialize(bd_t *bis);
271 int mmc_init(struct mmc *mmc);
272 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
273 struct mmc *find_mmc_device(int dev_num);
274 void print_mmc_devices(char separator);
275 int board_mmc_getcd(u8 *cd, struct mmc *mmc);
277 #ifndef CONFIG_GENERIC_MMC
278 int mmc_legacy_init(int verbose);