/* * Marvell MMC/SD/SDIO driver * * (C) Copyright 2012 * Marvell Semiconductor * Written-by: Maen Suleiman, Gerald Kerma * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef __MVEBU_MMC_H__ #define __MVEBU_MMC_H__ /* needed for the mmc_cfg definition */ #include #define MMC_BLOCK_SIZE 512 /* * Clock rates */ #define MVEBU_MMC_CLOCKRATE_MAX 50000000 #define MVEBU_MMC_BASE_DIV_MAX 0x7ff #define MVEBU_MMC_BASE_FAST_CLOCK CONFIG_SYS_TCLK #define MVEBU_MMC_BASE_FAST_CLK_100 100000000 #define MVEBU_MMC_BASE_FAST_CLK_200 200000000 /* SDIO register */ #define SDIO_SYS_ADDR_LOW 0x000 #define SDIO_SYS_ADDR_HI 0x004 #define SDIO_BLK_SIZE 0x008 #define SDIO_BLK_COUNT 0x00c #define SDIO_ARG_LOW 0x010 #define SDIO_ARG_HI 0x014 #define SDIO_XFER_MODE 0x018 #define SDIO_CMD 0x01c #define SDIO_RSP(i) (0x020 + ((i)<<2)) #define SDIO_RSP0 0x020 #define SDIO_RSP1 0x024 #define SDIO_RSP2 0x028 #define SDIO_RSP3 0x02c #define SDIO_RSP4 0x030 #define SDIO_RSP5 0x034 #define SDIO_RSP6 0x038 #define SDIO_RSP7 0x03c #define SDIO_BUF_DATA_PORT 0x040 #define SDIO_RSVED 0x044 #define SDIO_HW_STATE 0x048 #define SDIO_PRESENT_STATE0 0x048 #define SDIO_PRESENT_STATE1 0x04c #define SDIO_HOST_CTRL 0x050 #define SDIO_BLK_GAP_CTRL 0x054 #define SDIO_CLK_CTRL 0x058 #define SDIO_SW_RESET 0x05c #define SDIO_NOR_INTR_STATUS 0x060 #define SDIO_ERR_INTR_STATUS 0x064 #define SDIO_NOR_STATUS_EN 0x068 #define SDIO_ERR_STATUS_EN 0x06c #define SDIO_NOR_INTR_EN 0x070 #define SDIO_ERR_INTR_EN 0x074 #define SDIO_AUTOCMD12_ERR_STATUS 0x078 #define SDIO_CURR_BYTE_LEFT 0x07c #define SDIO_CURR_BLK_LEFT 0x080 #define SDIO_AUTOCMD12_ARG_LOW 0x084 #define SDIO_AUTOCMD12_ARG_HI 0x088 #define SDIO_AUTOCMD12_INDEX 0x08c #define SDIO_AUTO_RSP(i) (0x090 + ((i)<<2)) #define SDIO_AUTO_RSP0 0x090 #define SDIO_AUTO_RSP1 0x094 #define SDIO_AUTO_RSP2 0x098 #define SDIO_CLK_DIV 0x128 #define WINDOW_CTRL(i) (0x108 + ((i) << 3)) #define WINDOW_BASE(i) (0x10c + ((i) << 3)) /* SDIO_PRESENT_STATE */ #define CARD_BUSY (1 << 1) #define CMD_INHIBIT (1 << 0) #define CMD_TXACTIVE (1 << 8) #define CMD_RXACTIVE (1 << 9) #define CMD_AUTOCMD12ACTIVE (1 << 14) #define CMD_BUS_BUSY (CMD_AUTOCMD12ACTIVE | \ CMD_RXACTIVE | \ CMD_TXACTIVE | \ CMD_INHIBIT | \ CARD_BUSY) /* * SDIO_CMD */ #define SDIO_CMD_RSP_NONE (0 << 0) #define SDIO_CMD_RSP_136 (1 << 0) #define SDIO_CMD_RSP_48 (2 << 0) #define SDIO_CMD_RSP_48BUSY (3 << 0) #define SDIO_CMD_CHECK_DATACRC16 (1 << 2) #define SDIO_CMD_CHECK_CMDCRC (1 << 3) #define SDIO_CMD_INDX_CHECK (1 << 4) #define SDIO_CMD_DATA_PRESENT (1 << 5) #define SDIO_UNEXPECTED_RESP (1 << 7) #define SDIO_CMD_INDEX(x) ((x) << 8) /* * SDIO_XFER_MODE */ #define SDIO_XFER_MODE_STOP_CLK (1 << 5) #define SDIO_XFER_MODE_HW_WR_DATA_EN (1 << 1) #define SDIO_XFER_MODE_AUTO_CMD12 (1 << 2) #define SDIO_XFER_MODE_INT_CHK_EN (1 << 3) #define SDIO_XFER_MODE_TO_HOST (1 << 4) #define SDIO_XFER_MODE_DMA (0 << 6) /* * SDIO_HOST_CTRL */ #define SDIO_HOST_CTRL_PUSH_PULL_EN (1 << 0) #define SDIO_HOST_CTRL_CARD_TYPE_MEM_ONLY (0 << 1) #define SDIO_HOST_CTRL_CARD_TYPE_IO_ONLY (1 << 1) #define SDIO_HOST_CTRL_CARD_TYPE_IO_MEM_COMBO (2 << 1) #define SDIO_HOST_CTRL_CARD_TYPE_IO_MMC (3 << 1) #define SDIO_HOST_CTRL_CARD_TYPE_MASK (3 << 1) #define SDIO_HOST_CTRL_BIG_ENDIAN (1 << 3) #define SDIO_HOST_CTRL_LSB_FIRST (1 << 4) #define SDIO_HOST_CTRL_DATA_WIDTH_1_BIT (0 << 9) #define SDIO_HOST_CTRL_DATA_WIDTH_4_BITS (1 << 9) #define SDIO_HOST_CTRL_HI_SPEED_EN (1 << 10) #define SDIO_HOST_CTRL_TMOUT_MAX 0xf #define SDIO_HOST_CTRL_TMOUT_MASK (0xf << 11) #define SDIO_HOST_CTRL_TMOUT(x) ((x) << 11) #define SDIO_HOST_CTRL_TMOUT_EN (1 << 15) /* * SDIO_SW_RESET */ #define SDIO_SW_RESET_NOW (1 << 8) /* * Normal interrupt status bits */ #define SDIO_NOR_ERROR (1 << 15) #define SDIO_NOR_UNEXP_RSP (1 << 14) #define SDIO_NOR_AUTOCMD12_DONE (1 << 13) #define SDIO_NOR_SUSPEND_ON (1 << 12) #define SDIO_NOR_LMB_FF_8W_AVAIL (1 << 11) #define SDIO_NOR_LMB_FF_8W_FILLED (1 << 10) #define SDIO_NOR_READ_WAIT_ON (1 << 9) #define SDIO_NOR_CARD_INT (1 << 8) #define SDIO_NOR_READ_READY (1 << 5) #define SDIO_NOR_WRITE_READY (1 << 4) #define SDIO_NOR_DMA_INI (1 << 3) #define SDIO_NOR_BLK_GAP_EVT (1 << 2) #define SDIO_NOR_XFER_DONE (1 << 1) #define SDIO_NOR_CMD_DONE (1 << 0) /* * Error status bits */ #define SDIO_ERR_CRC_STATUS (1 << 14) #define SDIO_ERR_CRC_STARTBIT (1 << 13) #define SDIO_ERR_CRC_ENDBIT (1 << 12) #define SDIO_ERR_RESP_TBIT (1 << 11) #define SDIO_ERR_XFER_SIZE (1 << 10) #define SDIO_ERR_CMD_STARTBIT (1 << 9) #define SDIO_ERR_AUTOCMD12 (1 << 8) #define SDIO_ERR_DATA_ENDBIT (1 << 6) #define SDIO_ERR_DATA_CRC (1 << 5) #define SDIO_ERR_DATA_TIMEOUT (1 << 4) #define SDIO_ERR_CMD_INDEX (1 << 3) #define SDIO_ERR_CMD_ENDBIT (1 << 2) #define SDIO_ERR_CMD_CRC (1 << 1) #define SDIO_ERR_CMD_TIMEOUT (1 << 0) /* enable all for polling */ #define SDIO_POLL_MASK 0xffff /* * CMD12 error status bits */ #define SDIO_AUTOCMD12_ERR_NOTEXE (1 << 0) #define SDIO_AUTOCMD12_ERR_TIMEOUT (1 << 1) #define SDIO_AUTOCMD12_ERR_CRC (1 << 2) #define SDIO_AUTOCMD12_ERR_ENDBIT (1 << 3) #define SDIO_AUTOCMD12_ERR_INDEX (1 << 4) #define SDIO_AUTOCMD12_ERR_RESP_T_BIT (1 << 5) #define SDIO_AUTOCMD12_ERR_RESP_STARTBIT (1 << 6) #define MMC_RSP_PRESENT (1 << 0) /* 136 bit response */ #define MMC_RSP_136 (1 << 1) /* expect valid crc */ #define MMC_RSP_CRC (1 << 2) /* card may send busy */ #define MMC_RSP_BUSY (1 << 3) /* response contains opcode */ #define MMC_RSP_OPCODE (1 << 4) #define MMC_BUSMODE_OPENDRAIN 1 #define MMC_BUSMODE_PUSHPULL 2 #define MMC_BUS_WIDTH_1 0 #define MMC_BUS_WIDTH_4 2 #define MMC_BUS_WIDTH_8 3 /* Can the host do 4 bit transfers */ #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can do MMC high-speed timing */ #define MMC_CAP_MMC_HIGHSPEED (1 << 1) /* Can do SD high-speed timing */ #define MMC_CAP_SD_HIGHSPEED (1 << 2) /* Can signal pending SDIO IRQs */ #define MMC_CAP_SDIO_IRQ (1 << 3) /* Talks only SPI protocols */ #define MMC_CAP_SPI (1 << 4) /* Needs polling for card-detection */ #define MMC_CAP_NEEDS_POLL (1 << 5) /* Can the host do 8 bit transfers */ #define MMC_CAP_8_BIT_DATA (1 << 6) /* Nonremovable e.g. eMMC */ #define MMC_CAP_NONREMOVABLE (1 << 8) /* Waits while card is busy */ #define MMC_CAP_WAIT_WHILE_BUSY (1 << 9) /* Allow erase/trim commands */ #define MMC_CAP_ERASE (1 << 10) /* can support DDR mode at 1.8V */ #define MMC_CAP_1_8V_DDR (1 << 11) /* can support DDR mode at 1.2V */ #define MMC_CAP_1_2V_DDR (1 << 12) /* Can power off after boot */ #define MMC_CAP_POWER_OFF_CARD (1 << 13) /* CMD14/CMD19 bus width ok */ #define MMC_CAP_BUS_WIDTH_TEST (1 << 14) /* Host supports UHS SDR12 mode */ #define MMC_CAP_UHS_SDR12 (1 << 15) /* Host supports UHS SDR25 mode */ #define MMC_CAP_UHS_SDR25 (1 << 16) /* Host supports UHS SDR50 mode */ #define MMC_CAP_UHS_SDR50 (1 << 17) /* Host supports UHS SDR104 mode */ #define MMC_CAP_UHS_SDR104 (1 << 18) /* Host supports UHS DDR50 mode */ #define MMC_CAP_UHS_DDR50 (1 << 19) /* Host supports Driver Type A */ #define MMC_CAP_DRIVER_TYPE_A (1 << 23) /* Host supports Driver Type C */ #define MMC_CAP_DRIVER_TYPE_C (1 << 24) /* Host supports Driver Type D */ #define MMC_CAP_DRIVER_TYPE_D (1 << 25) /* CMD23 supported. */ #define MMC_CAP_CMD23 (1 << 30) /* Hardware reset */ #define MMC_CAP_HW_RESET (1 << 31) struct mvebu_mmc_cfg { u32 mvebu_mmc_base; u32 mvebu_mmc_clk; u8 max_bus_width; struct mmc_config cfg; }; /* * Functions prototypes */ int mvebu_mmc_init(bd_t *bis); #endif /* __MVEBU_MMC_H__ */