1 /* SPDX-License-Identifier: GPL-2.0+ */ 2 /* 3 * Copyright (C) 2016 Socionext Inc. 4 * Author: Masahiro Yamada <yamada.masahiro@socionext.com> 5 */ 6 7 #ifndef __TMIO_COMMON_H__ 8 #define __TMIO_COMMON_H__ 9 10 #define TMIO_SD_CMD 0x000 /* command */ 11 #define TMIO_SD_CMD_NOSTOP BIT(14) /* No automatic CMD12 issue */ 12 #define TMIO_SD_CMD_MULTI BIT(13) /* multiple block transfer */ 13 #define TMIO_SD_CMD_RD BIT(12) /* 1: read, 0: write */ 14 #define TMIO_SD_CMD_DATA BIT(11) /* data transfer */ 15 #define TMIO_SD_CMD_APP BIT(6) /* ACMD preceded by CMD55 */ 16 #define TMIO_SD_CMD_NORMAL (0 << 8)/* auto-detect of resp-type */ 17 #define TMIO_SD_CMD_RSP_NONE (3 << 8)/* response: none */ 18 #define TMIO_SD_CMD_RSP_R1 (4 << 8)/* response: R1, R5, R6, R7 */ 19 #define TMIO_SD_CMD_RSP_R1B (5 << 8)/* response: R1b, R5b */ 20 #define TMIO_SD_CMD_RSP_R2 (6 << 8)/* response: R2 */ 21 #define TMIO_SD_CMD_RSP_R3 (7 << 8)/* response: R3, R4 */ 22 #define TMIO_SD_ARG 0x008 /* command argument */ 23 #define TMIO_SD_STOP 0x010 /* stop action control */ 24 #define TMIO_SD_STOP_SEC BIT(8) /* use sector count */ 25 #define TMIO_SD_STOP_STP BIT(0) /* issue CMD12 */ 26 #define TMIO_SD_SECCNT 0x014 /* sector counter */ 27 #define TMIO_SD_RSP10 0x018 /* response[39:8] */ 28 #define TMIO_SD_RSP32 0x020 /* response[71:40] */ 29 #define TMIO_SD_RSP54 0x028 /* response[103:72] */ 30 #define TMIO_SD_RSP76 0x030 /* response[127:104] */ 31 #define TMIO_SD_INFO1 0x038 /* IRQ status 1 */ 32 #define TMIO_SD_INFO1_CD BIT(5) /* state of card detect */ 33 #define TMIO_SD_INFO1_INSERT BIT(4) /* card inserted */ 34 #define TMIO_SD_INFO1_REMOVE BIT(3) /* card removed */ 35 #define TMIO_SD_INFO1_CMP BIT(2) /* data complete */ 36 #define TMIO_SD_INFO1_RSP BIT(0) /* response complete */ 37 #define TMIO_SD_INFO2 0x03c /* IRQ status 2 */ 38 #define TMIO_SD_INFO2_ERR_ILA BIT(15) /* illegal access err */ 39 #define TMIO_SD_INFO2_CBSY BIT(14) /* command busy */ 40 #define TMIO_SD_INFO2_SCLKDIVEN BIT(13) /* command setting reg ena */ 41 #define TMIO_SD_INFO2_BWE BIT(9) /* write buffer ready */ 42 #define TMIO_SD_INFO2_BRE BIT(8) /* read buffer ready */ 43 #define TMIO_SD_INFO2_DAT0 BIT(7) /* SDDAT0 */ 44 #define TMIO_SD_INFO2_ERR_RTO BIT(6) /* response time out */ 45 #define TMIO_SD_INFO2_ERR_ILR BIT(5) /* illegal read err */ 46 #define TMIO_SD_INFO2_ERR_ILW BIT(4) /* illegal write err */ 47 #define TMIO_SD_INFO2_ERR_TO BIT(3) /* time out error */ 48 #define TMIO_SD_INFO2_ERR_END BIT(2) /* END bit error */ 49 #define TMIO_SD_INFO2_ERR_CRC BIT(1) /* CRC error */ 50 #define TMIO_SD_INFO2_ERR_IDX BIT(0) /* cmd index error */ 51 #define TMIO_SD_INFO1_MASK 0x040 52 #define TMIO_SD_INFO2_MASK 0x044 53 #define TMIO_SD_CLKCTL 0x048 /* clock divisor */ 54 #define TMIO_SD_CLKCTL_DIV_MASK 0x104ff 55 #define TMIO_SD_CLKCTL_DIV1024 BIT(16) /* SDCLK = CLK / 1024 */ 56 #define TMIO_SD_CLKCTL_DIV512 BIT(7) /* SDCLK = CLK / 512 */ 57 #define TMIO_SD_CLKCTL_DIV256 BIT(6) /* SDCLK = CLK / 256 */ 58 #define TMIO_SD_CLKCTL_DIV128 BIT(5) /* SDCLK = CLK / 128 */ 59 #define TMIO_SD_CLKCTL_DIV64 BIT(4) /* SDCLK = CLK / 64 */ 60 #define TMIO_SD_CLKCTL_DIV32 BIT(3) /* SDCLK = CLK / 32 */ 61 #define TMIO_SD_CLKCTL_DIV16 BIT(2) /* SDCLK = CLK / 16 */ 62 #define TMIO_SD_CLKCTL_DIV8 BIT(1) /* SDCLK = CLK / 8 */ 63 #define TMIO_SD_CLKCTL_DIV4 BIT(0) /* SDCLK = CLK / 4 */ 64 #define TMIO_SD_CLKCTL_DIV2 0 /* SDCLK = CLK / 2 */ 65 #define TMIO_SD_CLKCTL_DIV1 BIT(10) /* SDCLK = CLK */ 66 #define TMIO_SD_CLKCTL_RCAR_DIV1 0xff /* SDCLK = CLK (RCar ver.) */ 67 #define TMIO_SD_CLKCTL_OFFEN BIT(9) /* stop SDCLK when unused */ 68 #define TMIO_SD_CLKCTL_SCLKEN BIT(8) /* SDCLK output enable */ 69 #define TMIO_SD_SIZE 0x04c /* block size */ 70 #define TMIO_SD_OPTION 0x050 71 #define TMIO_SD_OPTION_WIDTH_MASK (5 << 13) 72 #define TMIO_SD_OPTION_WIDTH_1 (4 << 13) 73 #define TMIO_SD_OPTION_WIDTH_4 (0 << 13) 74 #define TMIO_SD_OPTION_WIDTH_8 (1 << 13) 75 #define TMIO_SD_BUF 0x060 /* read/write buffer */ 76 #define TMIO_SD_EXTMODE 0x1b0 77 #define TMIO_SD_EXTMODE_DMA_EN BIT(1) /* transfer 1: DMA, 0: pio */ 78 #define TMIO_SD_SOFT_RST 0x1c0 79 #define TMIO_SD_SOFT_RST_RSTX BIT(0) /* reset deassert */ 80 #define TMIO_SD_VERSION 0x1c4 /* version register */ 81 #define TMIO_SD_VERSION_IP 0xff /* IP version */ 82 #define TMIO_SD_HOST_MODE 0x1c8 83 #define TMIO_SD_IF_MODE 0x1cc 84 #define TMIO_SD_IF_MODE_DDR BIT(0) /* DDR mode */ 85 #define TMIO_SD_VOLT 0x1e4 /* voltage switch */ 86 #define TMIO_SD_VOLT_MASK (3 << 0) 87 #define TMIO_SD_VOLT_OFF (0 << 0) 88 #define TMIO_SD_VOLT_330 (1 << 0)/* 3.3V signal */ 89 #define TMIO_SD_VOLT_180 (2 << 0)/* 1.8V signal */ 90 #define TMIO_SD_DMA_MODE 0x410 91 #define TMIO_SD_DMA_MODE_DIR_RD BIT(16) /* 1: from device, 0: to dev */ 92 #define TMIO_SD_DMA_MODE_ADDR_INC BIT(0) /* 1: address inc, 0: fixed */ 93 #define TMIO_SD_DMA_CTL 0x414 94 #define TMIO_SD_DMA_CTL_START BIT(0) /* start DMA (auto cleared) */ 95 #define TMIO_SD_DMA_RST 0x418 96 #define TMIO_SD_DMA_RST_RD BIT(9) 97 #define TMIO_SD_DMA_RST_WR BIT(8) 98 #define TMIO_SD_DMA_INFO1 0x420 99 #define TMIO_SD_DMA_INFO1_END_RD2 BIT(20) /* DMA from device is complete (uniphier) */ 100 #define TMIO_SD_DMA_INFO1_END_RD BIT(17) /* DMA from device is complete (renesas) */ 101 #define TMIO_SD_DMA_INFO1_END_WR BIT(16) /* DMA to device is complete */ 102 #define TMIO_SD_DMA_INFO1_MASK 0x424 103 #define TMIO_SD_DMA_INFO2 0x428 104 #define TMIO_SD_DMA_INFO2_ERR_RD BIT(17) 105 #define TMIO_SD_DMA_INFO2_ERR_WR BIT(16) 106 #define TMIO_SD_DMA_INFO2_MASK 0x42c 107 #define TMIO_SD_DMA_ADDR_L 0x440 108 #define TMIO_SD_DMA_ADDR_H 0x444 109 110 /* alignment required by the DMA engine of this controller */ 111 #define TMIO_SD_DMA_MINALIGN 0x10 112 113 struct tmio_sd_plat { 114 struct mmc_config cfg; 115 struct mmc mmc; 116 }; 117 118 struct tmio_sd_priv { 119 void __iomem *regbase; 120 unsigned long mclk; 121 unsigned int version; 122 u32 caps; 123 #define TMIO_SD_CAP_NONREMOVABLE BIT(0) /* Nonremovable e.g. eMMC */ 124 #define TMIO_SD_CAP_DMA_INTERNAL BIT(1) /* have internal DMA engine */ 125 #define TMIO_SD_CAP_DIV1024 BIT(2) /* divisor 1024 is available */ 126 #define TMIO_SD_CAP_64BIT BIT(3) /* Controller is 64bit */ 127 #define TMIO_SD_CAP_16BIT BIT(4) /* Controller is 16bit */ 128 #define TMIO_SD_CAP_RCAR_GEN2 BIT(5) /* Renesas RCar version of IP */ 129 #define TMIO_SD_CAP_RCAR_GEN3 BIT(6) /* Renesas RCar version of IP */ 130 #define TMIO_SD_CAP_RCAR_UHS BIT(7) /* Renesas RCar UHS/SDR modes */ 131 #define TMIO_SD_CAP_RCAR \ 132 (TMIO_SD_CAP_RCAR_GEN2 | TMIO_SD_CAP_RCAR_GEN3) 133 #ifdef CONFIG_DM_REGULATOR 134 struct udevice *vqmmc_dev; 135 #endif 136 }; 137 138 int tmio_sd_send_cmd(struct udevice *dev, struct mmc_cmd *cmd, 139 struct mmc_data *data); 140 int tmio_sd_set_ios(struct udevice *dev); 141 int tmio_sd_get_cd(struct udevice *dev); 142 143 int tmio_sd_bind(struct udevice *dev); 144 int tmio_sd_probe(struct udevice *dev, u32 quirks); 145 146 u32 tmio_sd_readl(struct tmio_sd_priv *priv, unsigned int reg); 147 void tmio_sd_writel(struct tmio_sd_priv *priv, 148 u32 val, unsigned int reg); 149 150 #endif /* __TMIO_COMMON_H__ */ 151