1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Marvell MMC/SD/SDIO driver 4 * 5 * (C) Copyright 2012 6 * Marvell Semiconductor <www.marvell.com> 7 * Written-by: Maen Suleiman, Gerald Kerma 8 */ 9 10 #ifndef __MVEBU_MMC_H__ 11 #define __MVEBU_MMC_H__ 12 13 /* needed for the mmc_cfg definition */ 14 #include <mmc.h> 15 16 #define MMC_BLOCK_SIZE 512 17 18 /* 19 * Clock rates 20 */ 21 22 #define MVEBU_MMC_CLOCKRATE_MAX 50000000 23 #define MVEBU_MMC_BASE_DIV_MAX 0x7ff 24 #define MVEBU_MMC_BASE_FAST_CLOCK CONFIG_SYS_TCLK 25 #define MVEBU_MMC_BASE_FAST_CLK_100 100000000 26 #define MVEBU_MMC_BASE_FAST_CLK_200 200000000 27 28 /* SDIO register */ 29 #define SDIO_SYS_ADDR_LOW 0x000 30 #define SDIO_SYS_ADDR_HI 0x004 31 #define SDIO_BLK_SIZE 0x008 32 #define SDIO_BLK_COUNT 0x00c 33 #define SDIO_ARG_LOW 0x010 34 #define SDIO_ARG_HI 0x014 35 #define SDIO_XFER_MODE 0x018 36 #define SDIO_CMD 0x01c 37 #define SDIO_RSP(i) (0x020 + ((i)<<2)) 38 #define SDIO_RSP0 0x020 39 #define SDIO_RSP1 0x024 40 #define SDIO_RSP2 0x028 41 #define SDIO_RSP3 0x02c 42 #define SDIO_RSP4 0x030 43 #define SDIO_RSP5 0x034 44 #define SDIO_RSP6 0x038 45 #define SDIO_RSP7 0x03c 46 #define SDIO_BUF_DATA_PORT 0x040 47 #define SDIO_RSVED 0x044 48 #define SDIO_HW_STATE 0x048 49 #define SDIO_PRESENT_STATE0 0x048 50 #define SDIO_PRESENT_STATE1 0x04c 51 #define SDIO_HOST_CTRL 0x050 52 #define SDIO_BLK_GAP_CTRL 0x054 53 #define SDIO_CLK_CTRL 0x058 54 #define SDIO_SW_RESET 0x05c 55 #define SDIO_NOR_INTR_STATUS 0x060 56 #define SDIO_ERR_INTR_STATUS 0x064 57 #define SDIO_NOR_STATUS_EN 0x068 58 #define SDIO_ERR_STATUS_EN 0x06c 59 #define SDIO_NOR_INTR_EN 0x070 60 #define SDIO_ERR_INTR_EN 0x074 61 #define SDIO_AUTOCMD12_ERR_STATUS 0x078 62 #define SDIO_CURR_BYTE_LEFT 0x07c 63 #define SDIO_CURR_BLK_LEFT 0x080 64 #define SDIO_AUTOCMD12_ARG_LOW 0x084 65 #define SDIO_AUTOCMD12_ARG_HI 0x088 66 #define SDIO_AUTOCMD12_INDEX 0x08c 67 #define SDIO_AUTO_RSP(i) (0x090 + ((i)<<2)) 68 #define SDIO_AUTO_RSP0 0x090 69 #define SDIO_AUTO_RSP1 0x094 70 #define SDIO_AUTO_RSP2 0x098 71 #define SDIO_CLK_DIV 0x128 72 73 #define WINDOW_CTRL(i) (0x108 + ((i) << 3)) 74 #define WINDOW_BASE(i) (0x10c + ((i) << 3)) 75 76 /* SDIO_PRESENT_STATE */ 77 #define CARD_BUSY (1 << 1) 78 #define CMD_INHIBIT (1 << 0) 79 #define CMD_TXACTIVE (1 << 8) 80 #define CMD_RXACTIVE (1 << 9) 81 #define CMD_FIFO_EMPTY (1 << 13) 82 #define CMD_AUTOCMD12ACTIVE (1 << 14) 83 #define CMD_BUS_BUSY (CMD_AUTOCMD12ACTIVE | \ 84 CMD_RXACTIVE | \ 85 CMD_TXACTIVE | \ 86 CMD_INHIBIT | \ 87 CARD_BUSY) 88 89 /* 90 * SDIO_CMD 91 */ 92 93 #define SDIO_CMD_RSP_NONE (0 << 0) 94 #define SDIO_CMD_RSP_136 (1 << 0) 95 #define SDIO_CMD_RSP_48 (2 << 0) 96 #define SDIO_CMD_RSP_48BUSY (3 << 0) 97 98 #define SDIO_CMD_CHECK_DATACRC16 (1 << 2) 99 #define SDIO_CMD_CHECK_CMDCRC (1 << 3) 100 #define SDIO_CMD_INDX_CHECK (1 << 4) 101 #define SDIO_CMD_DATA_PRESENT (1 << 5) 102 #define SDIO_UNEXPECTED_RESP (1 << 7) 103 104 #define SDIO_CMD_INDEX(x) ((x) << 8) 105 106 /* 107 * SDIO_XFER_MODE 108 */ 109 110 #define SDIO_XFER_MODE_STOP_CLK (1 << 5) 111 #define SDIO_XFER_MODE_HW_WR_DATA_EN (1 << 1) 112 #define SDIO_XFER_MODE_AUTO_CMD12 (1 << 2) 113 #define SDIO_XFER_MODE_INT_CHK_EN (1 << 3) 114 #define SDIO_XFER_MODE_TO_HOST (1 << 4) 115 #define SDIO_XFER_MODE_DMA (0 << 6) 116 117 /* 118 * SDIO_HOST_CTRL 119 */ 120 121 #define SDIO_HOST_CTRL_PUSH_PULL_EN (1 << 0) 122 123 #define SDIO_HOST_CTRL_CARD_TYPE_MEM_ONLY (0 << 1) 124 #define SDIO_HOST_CTRL_CARD_TYPE_IO_ONLY (1 << 1) 125 #define SDIO_HOST_CTRL_CARD_TYPE_IO_MEM_COMBO (2 << 1) 126 #define SDIO_HOST_CTRL_CARD_TYPE_IO_MMC (3 << 1) 127 #define SDIO_HOST_CTRL_CARD_TYPE_MASK (3 << 1) 128 129 #define SDIO_HOST_CTRL_BIG_ENDIAN (1 << 3) 130 #define SDIO_HOST_CTRL_LSB_FIRST (1 << 4) 131 #define SDIO_HOST_CTRL_DATA_WIDTH_1_BIT (0 << 9) 132 #define SDIO_HOST_CTRL_DATA_WIDTH_4_BITS (1 << 9) 133 #define SDIO_HOST_CTRL_HI_SPEED_EN (1 << 10) 134 135 #define SDIO_HOST_CTRL_TMOUT_MAX 0xf 136 #define SDIO_HOST_CTRL_TMOUT_MASK (0xf << 11) 137 #define SDIO_HOST_CTRL_TMOUT(x) ((x) << 11) 138 #define SDIO_HOST_CTRL_TMOUT_EN (1 << 15) 139 140 /* 141 * SDIO_SW_RESET 142 */ 143 144 #define SDIO_SW_RESET_NOW (1 << 8) 145 146 /* 147 * Normal interrupt status bits 148 */ 149 150 #define SDIO_NOR_ERROR (1 << 15) 151 #define SDIO_NOR_UNEXP_RSP (1 << 14) 152 #define SDIO_NOR_AUTOCMD12_DONE (1 << 13) 153 #define SDIO_NOR_SUSPEND_ON (1 << 12) 154 #define SDIO_NOR_LMB_FF_8W_AVAIL (1 << 11) 155 #define SDIO_NOR_LMB_FF_8W_FILLED (1 << 10) 156 #define SDIO_NOR_READ_WAIT_ON (1 << 9) 157 #define SDIO_NOR_CARD_INT (1 << 8) 158 #define SDIO_NOR_READ_READY (1 << 5) 159 #define SDIO_NOR_WRITE_READY (1 << 4) 160 #define SDIO_NOR_DMA_INI (1 << 3) 161 #define SDIO_NOR_BLK_GAP_EVT (1 << 2) 162 #define SDIO_NOR_XFER_DONE (1 << 1) 163 #define SDIO_NOR_CMD_DONE (1 << 0) 164 165 /* 166 * Error status bits 167 */ 168 169 #define SDIO_ERR_CRC_STATUS (1 << 14) 170 #define SDIO_ERR_CRC_STARTBIT (1 << 13) 171 #define SDIO_ERR_CRC_ENDBIT (1 << 12) 172 #define SDIO_ERR_RESP_TBIT (1 << 11) 173 #define SDIO_ERR_XFER_SIZE (1 << 10) 174 #define SDIO_ERR_CMD_STARTBIT (1 << 9) 175 #define SDIO_ERR_AUTOCMD12 (1 << 8) 176 #define SDIO_ERR_DATA_ENDBIT (1 << 6) 177 #define SDIO_ERR_DATA_CRC (1 << 5) 178 #define SDIO_ERR_DATA_TIMEOUT (1 << 4) 179 #define SDIO_ERR_CMD_INDEX (1 << 3) 180 #define SDIO_ERR_CMD_ENDBIT (1 << 2) 181 #define SDIO_ERR_CMD_CRC (1 << 1) 182 #define SDIO_ERR_CMD_TIMEOUT (1 << 0) 183 /* enable all for polling */ 184 #define SDIO_POLL_MASK 0xffff 185 186 /* 187 * CMD12 error status bits 188 */ 189 190 #define SDIO_AUTOCMD12_ERR_NOTEXE (1 << 0) 191 #define SDIO_AUTOCMD12_ERR_TIMEOUT (1 << 1) 192 #define SDIO_AUTOCMD12_ERR_CRC (1 << 2) 193 #define SDIO_AUTOCMD12_ERR_ENDBIT (1 << 3) 194 #define SDIO_AUTOCMD12_ERR_INDEX (1 << 4) 195 #define SDIO_AUTOCMD12_ERR_RESP_T_BIT (1 << 5) 196 #define SDIO_AUTOCMD12_ERR_RESP_STARTBIT (1 << 6) 197 198 #define MMC_RSP_PRESENT (1 << 0) 199 /* 136 bit response */ 200 #define MMC_RSP_136 (1 << 1) 201 /* expect valid crc */ 202 #define MMC_RSP_CRC (1 << 2) 203 /* card may send busy */ 204 #define MMC_RSP_BUSY (1 << 3) 205 /* response contains opcode */ 206 #define MMC_RSP_OPCODE (1 << 4) 207 208 #define MMC_BUSMODE_OPENDRAIN 1 209 #define MMC_BUSMODE_PUSHPULL 2 210 211 #define MMC_BUS_WIDTH_1 0 212 #define MMC_BUS_WIDTH_4 2 213 #define MMC_BUS_WIDTH_8 3 214 215 /* Can the host do 4 bit transfers */ 216 #define MMC_CAP_4_BIT_DATA (1 << 0) 217 /* Can do MMC high-speed timing */ 218 #define MMC_CAP_MMC_HIGHSPEED (1 << 1) 219 /* Can do SD high-speed timing */ 220 #define MMC_CAP_SD_HIGHSPEED (1 << 2) 221 /* Can signal pending SDIO IRQs */ 222 #define MMC_CAP_SDIO_IRQ (1 << 3) 223 /* Talks only SPI protocols */ 224 #define MMC_CAP_SPI (1 << 4) 225 /* Can the host do 8 bit transfers */ 226 #define MMC_CAP_8_BIT_DATA (1 << 6) 227 228 /* Waits while card is busy */ 229 #define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) 230 /* Allow erase/trim commands */ 231 #define MMC_CAP_ERASE (1 << 10) 232 /* can support DDR mode at 1.8V */ 233 #define MMC_CAP_1_8V_DDR (1 << 11) 234 /* can support DDR mode at 1.2V */ 235 #define MMC_CAP_1_2V_DDR (1 << 12) 236 /* Can power off after boot */ 237 #define MMC_CAP_POWER_OFF_CARD (1 << 13) 238 /* CMD14/CMD19 bus width ok */ 239 #define MMC_CAP_BUS_WIDTH_TEST (1 << 14) 240 /* Host supports UHS SDR12 mode */ 241 #define MMC_CAP_UHS_SDR12 (1 << 15) 242 /* Host supports UHS SDR25 mode */ 243 #define MMC_CAP_UHS_SDR25 (1 << 16) 244 /* Host supports UHS SDR50 mode */ 245 #define MMC_CAP_UHS_SDR50 (1 << 17) 246 /* Host supports UHS SDR104 mode */ 247 #define MMC_CAP_UHS_SDR104 (1 << 18) 248 /* Host supports UHS DDR50 mode */ 249 #define MMC_CAP_UHS_DDR50 (1 << 19) 250 /* Host supports Driver Type A */ 251 #define MMC_CAP_DRIVER_TYPE_A (1 << 23) 252 /* Host supports Driver Type C */ 253 #define MMC_CAP_DRIVER_TYPE_C (1 << 24) 254 /* Host supports Driver Type D */ 255 #define MMC_CAP_DRIVER_TYPE_D (1 << 25) 256 /* CMD23 supported. */ 257 #define MMC_CAP_CMD23 (1 << 30) 258 /* Hardware reset */ 259 #define MMC_CAP_HW_RESET (1 << 31) 260 261 struct mvebu_mmc_cfg { 262 u32 mvebu_mmc_base; 263 u32 mvebu_mmc_clk; 264 u8 max_bus_width; 265 struct mmc_config cfg; 266 }; 267 268 /* 269 * Functions prototypes 270 */ 271 272 int mvebu_mmc_init(struct bd_info *bis); 273 274 #endif /* __MVEBU_MMC_H__ */ 275