mmc.h (1de97f9856f697380cc504126ab92561ed238803) mmc.h (272cc70b211e945e4413122aa73868f6ada732a5)
1/*
1/*
2 * (C) Copyright 2000-2003
3 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
2 * Copyright 2008, Freescale Semiconductor, Inc
3 * Andy Fleming
4 *
4 *
5 * Based (loosely) on the Linux code
6 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *

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19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24#ifndef _MMC_H_
25#define _MMC_H_
26
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
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.
14 *

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21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26#ifndef _MMC_H_
27#define _MMC_H_
28
27/* MMC command numbers */
29#include <linux/list.h>
30
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)
42
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
47
48#define SD_DATA_4BIT 0x00040000
49
50#define IS_SD(x) (mmc->version & SD_VERSION_SD)
51
52#define MMC_DATA_READ 1
53#define MMC_DATA_WRITE 2
54
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 */
58#define TIMEOUT -19
59
28#define MMC_CMD_GO_IDLE_STATE 0
29#define MMC_CMD_SEND_OP_COND 1
30#define MMC_CMD_ALL_SEND_CID 2
31#define MMC_CMD_SET_RELATIVE_ADDR 3
32#define MMC_CMD_SET_DSR 4
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
33#define MMC_CMD_SELECT_CARD 7
66#define MMC_CMD_SELECT_CARD 7
67#define MMC_CMD_SEND_EXT_CSD 8
34#define MMC_CMD_SEND_CSD 9
35#define MMC_CMD_SEND_CID 10
68#define MMC_CMD_SEND_CSD 9
69#define MMC_CMD_SEND_CID 10
70#define MMC_CMD_STOP_TRANSMISSION 12
36#define MMC_CMD_SEND_STATUS 13
37#define MMC_CMD_SET_BLOCKLEN 16
38#define MMC_CMD_READ_SINGLE_BLOCK 17
39#define MMC_CMD_READ_MULTIPLE_BLOCK 18
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
40#define MMC_CMD_WRITE_BLOCK 24
75#define MMC_CMD_WRITE_SINGLE_BLOCK 24
76#define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
41#define MMC_CMD_APP_CMD 55
42
77#define MMC_CMD_APP_CMD 55
78
43/* SD Card command numbers */
44#define SD_CMD_SEND_RELATIVE_ADDR 3
79#define SD_CMD_SEND_RELATIVE_ADDR 3
45#define SD_CMD_SWITCH 6
80#define SD_CMD_SWITCH_FUNC 6
46#define SD_CMD_SEND_IF_COND 8
47
48#define SD_CMD_APP_SET_BUS_WIDTH 6
49#define SD_CMD_APP_SEND_OP_COND 41
81#define SD_CMD_SEND_IF_COND 8
82
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
50
86
87/* SCR definitions in different words */
88#define SD_HIGHSPEED_BUSY 0x00020000
89#define SD_HIGHSPEED_SUPPORTED 0x00020000
90
91#define MMC_HS_TIMING 0x00000100
92#define MMC_HS_52MHZ 0x2
93
94#define OCR_BUSY 0x80
95#define OCR_HCS 0x40000000
96
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 */
114
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
118 1 in value field */
119#define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
120 addressed by index, which are
121 1 in value field */
122#define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
123
124#define SD_SWITCH_CHECK 0
125#define SD_SWITCH_SWITCH 1
126
127/*
128 * EXT_CSD fields
129 */
130
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 */
136
137/*
138 * EXT_CSD field definitions
139 */
140
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)
144
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 */
147
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 */
151
51#define R1_ILLEGAL_COMMAND (1 << 22)
52#define R1_APP_CMD (1 << 5)
53
152#define R1_ILLEGAL_COMMAND (1 << 22)
153#define R1_APP_CMD (1 << 5)
154
54int mmc_legacy_init(int verbose);
55int mmc_read(ulong src, uchar *dst, int size);
56int mmc_write(uchar *src, ulong dst, int size);
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 */
57
160
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| \
164 MMC_RSP_BUSY)
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)
171
172
58struct mmc_cid {
59 unsigned long psn;
60 unsigned short oid;
61 unsigned char mid;
62 unsigned char prv;
63 unsigned char mdt;
64 char pnm[7];
65};

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99 perm_write_protect:1,
100 tmp_write_protect:1,
101 file_format:2,
102 ecc:2;
103 u8 crc:7;
104 u8 one:1;
105};
106
173struct mmc_cid {
174 unsigned long psn;
175 unsigned short oid;
176 unsigned char mid;
177 unsigned char prv;
178 unsigned char mdt;
179 char pnm[7];
180};

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214 perm_write_protect:1,
215 tmp_write_protect:1,
216 file_format:2,
217 ecc:2;
218 u8 crc:7;
219 u8 one:1;
220};
221
222struct mmc_cmd {
223 ushort cmdidx;
224 uint resp_type;
225 uint cmdarg;
226 char response[18];
227 uint flags;
228};
229
230struct mmc_data {
231 union {
232 char *dest;
233 const char *src; /* src buffers don't get written to */
234 };
235 uint flags;
236 uint blocks;
237 uint blocksize;
238};
239
240struct mmc {
241 struct list_head link;
242 char name[32];
243 void *priv;
244 uint voltages;
245 uint version;
246 uint f_min;
247 uint f_max;
248 int high_capacity;
249 uint bus_width;
250 uint clock;
251 uint card_caps;
252 uint host_caps;
253 uint ocr;
254 uint scr[2];
255 uint csd[4];
256 char cid[16];
257 ushort rca;
258 uint tran_speed;
259 uint read_bl_len;
260 uint write_bl_len;
261 u64 capacity;
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);
267};
268
269int mmc_register(struct mmc *mmc);
270int mmc_initialize(bd_t *bis);
271int mmc_init(struct mmc *mmc);
272int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
273struct mmc *find_mmc_device(int dev_num);
274void print_mmc_devices(char separator);
275
276#ifndef CONFIG_GENERIC_MMC
277int mmc_legacy_init(int verbose);
278#endif
107#endif /* _MMC_H_ */
279#endif /* _MMC_H_ */