2 * Copyright 2008,2010 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
47 #define MMC_MODE_SPI 0x400
48 #define MMC_MODE_HC 0x800
50 #define SD_DATA_4BIT 0x00040000
52 #define IS_SD(x) (x->version & SD_VERSION_SD)
54 #define MMC_DATA_READ 1
55 #define MMC_DATA_WRITE 2
57 #define NO_CARD_ERR -16 /* No SD/MMC card inserted */
58 #define UNUSABLE_ERR -17 /* Unusable Card */
59 #define COMM_ERR -18 /* Communications Error */
62 #define MMC_CMD_GO_IDLE_STATE 0
63 #define MMC_CMD_SEND_OP_COND 1
64 #define MMC_CMD_ALL_SEND_CID 2
65 #define MMC_CMD_SET_RELATIVE_ADDR 3
66 #define MMC_CMD_SET_DSR 4
67 #define MMC_CMD_SWITCH 6
68 #define MMC_CMD_SELECT_CARD 7
69 #define MMC_CMD_SEND_EXT_CSD 8
70 #define MMC_CMD_SEND_CSD 9
71 #define MMC_CMD_SEND_CID 10
72 #define MMC_CMD_STOP_TRANSMISSION 12
73 #define MMC_CMD_SEND_STATUS 13
74 #define MMC_CMD_SET_BLOCKLEN 16
75 #define MMC_CMD_READ_SINGLE_BLOCK 17
76 #define MMC_CMD_READ_MULTIPLE_BLOCK 18
77 #define MMC_CMD_WRITE_SINGLE_BLOCK 24
78 #define MMC_CMD_WRITE_MULTIPLE_BLOCK 25
79 #define MMC_CMD_ERASE_GROUP_START 35
80 #define MMC_CMD_ERASE_GROUP_END 36
81 #define MMC_CMD_ERASE 38
82 #define MMC_CMD_APP_CMD 55
83 #define MMC_CMD_SPI_READ_OCR 58
84 #define MMC_CMD_SPI_CRC_ON_OFF 59
86 #define SD_CMD_SEND_RELATIVE_ADDR 3
87 #define SD_CMD_SWITCH_FUNC 6
88 #define SD_CMD_SEND_IF_COND 8
90 #define SD_CMD_APP_SET_BUS_WIDTH 6
91 #define SD_CMD_ERASE_WR_BLK_START 32
92 #define SD_CMD_ERASE_WR_BLK_END 33
93 #define SD_CMD_APP_SEND_OP_COND 41
94 #define SD_CMD_APP_SEND_SCR 51
96 /* SCR definitions in different words */
97 #define SD_HIGHSPEED_BUSY 0x00020000
98 #define SD_HIGHSPEED_SUPPORTED 0x00020000
100 #define MMC_HS_TIMING 0x00000100
101 #define MMC_HS_52MHZ 0x2
103 #define OCR_BUSY 0x80000000
104 #define OCR_HCS 0x40000000
105 #define OCR_VOLTAGE_MASK 0x007FFF80
106 #define OCR_ACCESS_MODE 0x60000000
108 #define SECURE_ERASE 0x80000000
110 #define MMC_STATUS_MASK (~0x0206BF7F)
111 #define MMC_STATUS_RDY_FOR_DATA (1 << 8)
112 #define MMC_STATUS_CURR_STATE (0xf << 9)
113 #define MMC_STATUS_ERROR (1 << 19)
115 #define MMC_VDD_165_195 0x00000080 /* VDD voltage 1.65 - 1.95 */
116 #define MMC_VDD_20_21 0x00000100 /* VDD voltage 2.0 ~ 2.1 */
117 #define MMC_VDD_21_22 0x00000200 /* VDD voltage 2.1 ~ 2.2 */
118 #define MMC_VDD_22_23 0x00000400 /* VDD voltage 2.2 ~ 2.3 */
119 #define MMC_VDD_23_24 0x00000800 /* VDD voltage 2.3 ~ 2.4 */
120 #define MMC_VDD_24_25 0x00001000 /* VDD voltage 2.4 ~ 2.5 */
121 #define MMC_VDD_25_26 0x00002000 /* VDD voltage 2.5 ~ 2.6 */
122 #define MMC_VDD_26_27 0x00004000 /* VDD voltage 2.6 ~ 2.7 */
123 #define MMC_VDD_27_28 0x00008000 /* VDD voltage 2.7 ~ 2.8 */
124 #define MMC_VDD_28_29 0x00010000 /* VDD voltage 2.8 ~ 2.9 */
125 #define MMC_VDD_29_30 0x00020000 /* VDD voltage 2.9 ~ 3.0 */
126 #define MMC_VDD_30_31 0x00040000 /* VDD voltage 3.0 ~ 3.1 */
127 #define MMC_VDD_31_32 0x00080000 /* VDD voltage 3.1 ~ 3.2 */
128 #define MMC_VDD_32_33 0x00100000 /* VDD voltage 3.2 ~ 3.3 */
129 #define MMC_VDD_33_34 0x00200000 /* VDD voltage 3.3 ~ 3.4 */
130 #define MMC_VDD_34_35 0x00400000 /* VDD voltage 3.4 ~ 3.5 */
131 #define MMC_VDD_35_36 0x00800000 /* VDD voltage 3.5 ~ 3.6 */
133 #define MMC_SWITCH_MODE_CMD_SET 0x00 /* Change the command set */
134 #define MMC_SWITCH_MODE_SET_BITS 0x01 /* Set bits in EXT_CSD byte
135 addressed by index which are
137 #define MMC_SWITCH_MODE_CLEAR_BITS 0x02 /* Clear bits in EXT_CSD byte
138 addressed by index, which are
140 #define MMC_SWITCH_MODE_WRITE_BYTE 0x03 /* Set target byte to value */
142 #define SD_SWITCH_CHECK 0
143 #define SD_SWITCH_SWITCH 1
149 #define EXT_CSD_PART_CONF 179 /* R/W */
150 #define EXT_CSD_BUS_WIDTH 183 /* R/W */
151 #define EXT_CSD_HS_TIMING 185 /* R/W */
152 #define EXT_CSD_CARD_TYPE 196 /* RO */
153 #define EXT_CSD_REV 192 /* RO */
154 #define EXT_CSD_SEC_CNT 212 /* RO, 4 bytes */
157 * EXT_CSD field definitions
160 #define EXT_CSD_CMD_SET_NORMAL (1 << 0)
161 #define EXT_CSD_CMD_SET_SECURE (1 << 1)
162 #define EXT_CSD_CMD_SET_CPSECURE (1 << 2)
164 #define EXT_CSD_CARD_TYPE_26 (1 << 0) /* Card can run at 26MHz */
165 #define EXT_CSD_CARD_TYPE_52 (1 << 1) /* Card can run at 52MHz */
167 #define EXT_CSD_BUS_WIDTH_1 0 /* Card is in 1 bit mode */
168 #define EXT_CSD_BUS_WIDTH_4 1 /* Card is in 4 bit mode */
169 #define EXT_CSD_BUS_WIDTH_8 2 /* Card is in 8 bit mode */
171 #define R1_ILLEGAL_COMMAND (1 << 22)
172 #define R1_APP_CMD (1 << 5)
174 #define MMC_RSP_PRESENT (1 << 0)
175 #define MMC_RSP_136 (1 << 1) /* 136 bit response */
176 #define MMC_RSP_CRC (1 << 2) /* expect valid crc */
177 #define MMC_RSP_BUSY (1 << 3) /* card may send busy */
178 #define MMC_RSP_OPCODE (1 << 4) /* response contains opcode */
180 #define MMC_RSP_NONE (0)
181 #define MMC_RSP_R1 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
182 #define MMC_RSP_R1b (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE| \
184 #define MMC_RSP_R2 (MMC_RSP_PRESENT|MMC_RSP_136|MMC_RSP_CRC)
185 #define MMC_RSP_R3 (MMC_RSP_PRESENT)
186 #define MMC_RSP_R4 (MMC_RSP_PRESENT)
187 #define MMC_RSP_R5 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
188 #define MMC_RSP_R6 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
189 #define MMC_RSP_R7 (MMC_RSP_PRESENT|MMC_RSP_CRC|MMC_RSP_OPCODE)
191 #define MMCPART_NOAVAILABLE (0xff)
192 #define PART_ACCESS_MASK (0x7)
193 #define PART_SUPPORT (0x1)
207 * This structure is used by atmel_mci.c only.
208 * It works for the AVR32 architecture but NOT
209 * for ARM/AT91 architectures.
210 * Its use is highly depreciated.
211 * After the atmel_mci.c driver for AVR32 has
212 * been replaced this structure will be removed.
224 u64 read_bl_partial:1,
225 write_blk_misalign:1,
244 u8 file_format_grp:1,
246 perm_write_protect:1,
265 const char *src; /* src buffers don't get written to */
273 struct list_head link;
298 block_dev_desc_t block_dev;
299 int (*send_cmd)(struct mmc *mmc,
300 struct mmc_cmd *cmd, struct mmc_data *data);
301 void (*set_ios)(struct mmc *mmc);
302 int (*init)(struct mmc *mmc);
306 int mmc_register(struct mmc *mmc);
307 int mmc_initialize(bd_t *bis);
308 int mmc_init(struct mmc *mmc);
309 int mmc_read(struct mmc *mmc, u64 src, uchar *dst, int size);
310 void mmc_set_clock(struct mmc *mmc, uint clock);
311 struct mmc *find_mmc_device(int dev_num);
312 int mmc_set_dev(int dev_num);
313 void print_mmc_devices(char separator);
314 int get_mmc_num(void);
315 int board_mmc_getcd(u8 *cd, struct mmc *mmc);
316 int mmc_switch_part(int dev_num, unsigned int part_num);
318 #ifdef CONFIG_GENERIC_MMC
319 int atmel_mci_init(void *regs);
320 #define mmc_host_is_spi(mmc) ((mmc)->host_caps & MMC_MODE_SPI)
321 struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
323 int mmc_legacy_init(int verbose);