1/* SPDX-License-Identifier: GPL-2.0+ */ 2/* 3 * Faraday FTSDC010 Secure Digital Memory Card Host Controller 4 * 5 * Copyright (C) 2011 Andes Technology Corporation 6 * Macpaul Lin, Andes Technology Corporation <macpaul@andestech.com> 7 */ 8 9#ifndef __FTSDC010_H 10#define __FTSDC010_H 11 12#ifndef __ASSEMBLY__ 13 14/* sd controller register */ 15#include <linux/bitops.h> 16struct ftsdc010_mmc { 17 unsigned int cmd; /* 0x00 - command reg */ 18 unsigned int argu; /* 0x04 - argument reg */ 19 unsigned int rsp0; /* 0x08 - response reg0 */ 20 unsigned int rsp1; /* 0x0c - response reg1 */ 21 unsigned int rsp2; /* 0x10 - response reg2 */ 22 unsigned int rsp3; /* 0x14 - response reg3 */ 23 unsigned int rsp_cmd; /* 0x18 - responded cmd reg */ 24 unsigned int dcr; /* 0x1c - data control reg */ 25 unsigned int dtr; /* 0x20 - data timer reg */ 26 unsigned int dlr; /* 0x24 - data length reg */ 27 unsigned int status; /* 0x28 - status reg */ 28 unsigned int clr; /* 0x2c - clear reg */ 29 unsigned int int_mask; /* 0x30 - intrrupt mask reg */ 30 unsigned int pcr; /* 0x34 - power control reg */ 31 unsigned int ccr; /* 0x38 - clock contorl reg */ 32 unsigned int bwr; /* 0x3c - bus width reg */ 33 unsigned int dwr; /* 0x40 - data window reg */ 34#ifndef CONFIG_FTSDC010_SDIO 35 unsigned int feature; /* 0x44 - feature reg */ 36 unsigned int rev; /* 0x48 - revision reg */ 37#else 38 unsigned int mmc_intr_time; /* 0x44 - MMC int resp time reg */ 39 unsigned int gpo; /* 0x48 - gerenal purpose output */ 40 unsigned int reserved[8]; /* 0x50 - 0x68 reserved */ 41 unsigned int sdio_ctrl1; /* 0x6c - SDIO control reg 1 */ 42 unsigned int sdio_ctrl2; /* 0x70 - SDIO control reg 2 */ 43 unsigned int sdio_status; /* 0x74 - SDIO status regi */ 44 unsigned int reserved1[9]; /* 0x78 - 0x98 reserved */ 45 unsigned int feature; /* 0x9c - feature reg */ 46 unsigned int rev; /* 0xa0 - revision reg */ 47#endif /* CONFIG_FTSDC010_SDIO */ 48}; 49 50struct mmc_host { 51 struct ftsdc010_mmc *reg; 52 unsigned int version; /* SDHCI spec. version */ 53 unsigned int clock; /* Current clock (MHz) */ 54 unsigned int fifo_len; /* bytes */ 55 unsigned int last_opcode; /* Last OP Code */ 56 unsigned int card_type; /* Card type */ 57}; 58 59/* functions */ 60int ftsdc010_mmc_init(int dev_index); 61 62#endif /* __ASSEMBLY__ */ 63 64/* global defines */ 65#define FTSDC010_CMD_RETRY 0x100000 66#define FTSDC010_PIO_RETRY 100 /* pio retry times */ 67#define FTSDC010_DELAY_UNIT 100 /* 100 us */ 68 69/* define from Linux kernel - include/linux/mmc/card.h */ 70#define MMC_TYPE_SDIO 2 /* SDIO card */ 71 72/* define for mmc layer */ 73#define MMC_DATA_BOTH_DIR (MMC_DATA_WRITE | MMC_DATA_READ) 74 75/* this part is strange */ 76#define FTSDC010_SDIO_CTRL1_REG 0x0000006C 77#define FTSDC010_SDIO_CTRL2_REG 0x0000006C 78#define FTSDC010_SDIO_STATUS_REG 0x00000070 79 80/* 0x00 - command register */ 81#define FTSDC010_CMD_IDX(x) (((x) & 0x3f) << 0) 82#define FTSDC010_CMD_NEED_RSP (1 << 6) 83#define FTSDC010_CMD_LONG_RSP (1 << 7) 84#define FTSDC010_CMD_APP_CMD (1 << 8) 85#define FTSDC010_CMD_CMD_EN (1 << 9) 86#define FTSDC010_CMD_SDC_RST (1 << 10) 87#define FTSDC010_CMD_MMC_INT_STOP (1 << 11) 88 89/* 0x18 - responded command register */ 90#define FTSDC010_RSP_CMD_IDX(x) (((x) >> 0) & 0x3f) 91#define FTSDC010_RSP_CMD_APP (1 << 6) 92 93/* 0x1c - data control register */ 94#define FTSDC010_DCR_BLK_SIZE(x) (((x) & 0xf) << 0) 95#define FTSDC010_DCR_DATA_WRITE (1 << 4) 96#define FTSDC010_DCR_DMA_EN (1 << 5) 97#define FTSDC010_DCR_DATA_EN (1 << 6) 98#ifdef CONFIG_FTSDC010_SDIO 99#define FTSDC010_DCR_FIFOTH (1 << 7) 100#define FTSDC010_DCR_DMA_TYPE(x) (((x) & 0x3) << 8) 101#define FTSDC010_DCR_FIFO_RST (1 << 10) 102#endif /* CONFIG_FTSDC010_SDIO */ 103 104#define FTSDC010_DCR_DMA_TYPE_1 0x0 /* Single r/w */ 105#define FTSDC010_DCR_DMA_TYPE_4 0x1 /* Burst 4 r/w */ 106#define FTSDC010_DCR_DMA_TYPE_8 0x2 /* Burst 8 r/w */ 107 108#define FTSDC010_DCR_BLK_BYTES(x) (ffs(x) - 1) /* 1B - 2048B */ 109 110/* CPRM related define */ 111#define FTSDC010_CPRM_DATA_CHANGE_ENDIAN_EN 0x000008 112#define FTSDC010_CPRM_DATA_SWAP_HL_EN 0x000010 113 114/* 0x28 - status register */ 115#define FTSDC010_STATUS_RSP_CRC_FAIL (1 << 0) 116#define FTSDC010_STATUS_DATA_CRC_FAIL (1 << 1) 117#define FTSDC010_STATUS_RSP_TIMEOUT (1 << 2) 118#define FTSDC010_STATUS_DATA_TIMEOUT (1 << 3) 119#define FTSDC010_STATUS_RSP_CRC_OK (1 << 4) 120#define FTSDC010_STATUS_DATA_CRC_OK (1 << 5) 121#define FTSDC010_STATUS_CMD_SEND (1 << 6) 122#define FTSDC010_STATUS_DATA_END (1 << 7) 123#define FTSDC010_STATUS_FIFO_URUN (1 << 8) 124#define FTSDC010_STATUS_FIFO_ORUN (1 << 9) 125#define FTSDC010_STATUS_CARD_CHANGE (1 << 10) 126#define FTSDC010_STATUS_CARD_DETECT (1 << 11) 127#define FTSDC010_STATUS_WRITE_PROT (1 << 12) 128#ifdef CONFIG_FTSDC010_SDIO 129#define FTSDC010_STATUS_CP_READY (1 << 13) /* reserved ? */ 130#define FTSDC010_STATUS_CP_BUF_READY (1 << 14) /* reserved ? */ 131#define FTSDC010_STATUS_PLAIN_TEXT_READY (1 << 15) /* reserved ? */ 132#define FTSDC010_STATUS_SDIO_IRPT (1 << 16) /* SDIO card intr */ 133#define FTSDC010_STATUS_DATA0_STATUS (1 << 17) 134#endif /* CONFIG_FTSDC010_SDIO */ 135#define FTSDC010_STATUS_RSP_ERROR \ 136 (FTSDC010_STATUS_RSP_CRC_FAIL | FTSDC010_STATUS_RSP_TIMEOUT) 137#define FTSDC010_STATUS_RSP_MASK \ 138 (FTSDC010_STATUS_RSP_ERROR | FTSDC010_STATUS_RSP_CRC_OK) 139#define FTSDC010_STATUS_DATA_ERROR \ 140 (FTSDC010_STATUS_DATA_CRC_FAIL | FTSDC010_STATUS_DATA_TIMEOUT) 141#define FTSDC010_STATUS_DATA_MASK \ 142 (FTSDC010_STATUS_DATA_ERROR | FTSDC010_STATUS_DATA_CRC_OK \ 143 | FTSDC010_STATUS_DATA_END) 144 145/* 0x2c - clear register */ 146#define FTSDC010_CLR_RSP_CRC_FAIL (1 << 0) 147#define FTSDC010_CLR_DATA_CRC_FAIL (1 << 1) 148#define FTSDC010_CLR_RSP_TIMEOUT (1 << 2) 149#define FTSDC010_CLR_DATA_TIMEOUT (1 << 3) 150#define FTSDC010_CLR_RSP_CRC_OK (1 << 4) 151#define FTSDC010_CLR_DATA_CRC_OK (1 << 5) 152#define FTSDC010_CLR_CMD_SEND (1 << 6) 153#define FTSDC010_CLR_DATA_END (1 << 7) 154#define FTSDC010_STATUS_FIFO_URUN (1 << 8) /* reserved ? */ 155#define FTSDC010_STATUS_FIFO_ORUN (1 << 9) /* reserved ? */ 156#define FTSDC010_CLR_CARD_CHANGE (1 << 10) 157#ifdef CONFIG_FTSDC010_SDIO 158#define FTSDC010_CLR_SDIO_IRPT (1 << 16) 159#endif /* CONFIG_FTSDC010_SDIO */ 160 161/* 0x30 - interrupt mask register */ 162#define FTSDC010_INT_MASK_RSP_CRC_FAIL (1 << 0) 163#define FTSDC010_INT_MASK_DATA_CRC_FAIL (1 << 1) 164#define FTSDC010_INT_MASK_RSP_TIMEOUT (1 << 2) 165#define FTSDC010_INT_MASK_DATA_TIMEOUT (1 << 3) 166#define FTSDC010_INT_MASK_RSP_CRC_OK (1 << 4) 167#define FTSDC010_INT_MASK_DATA_CRC_OK (1 << 5) 168#define FTSDC010_INT_MASK_CMD_SEND (1 << 6) 169#define FTSDC010_INT_MASK_DATA_END (1 << 7) 170#define FTSDC010_INT_MASK_FIFO_URUN (1 << 8) 171#define FTSDC010_INT_MASK_FIFO_ORUN (1 << 9) 172#define FTSDC010_INT_MASK_CARD_CHANGE (1 << 10) 173#ifdef CONFIG_FTSDC010_SDIO 174#define FTSDC010_INT_MASK_CP_READY (1 << 13) 175#define FTSDC010_INT_MASK_CP_BUF_READY (1 << 14) 176#define FTSDC010_INT_MASK_PLAIN_TEXT_READY (1 << 15) 177#define FTSDC010_INT_MASK_SDIO_IRPT (1 << 16) 178#define FTSDC010_STATUS_DATA0_STATUS (1 << 17) 179#endif /* CONFIG_FTSDC010_SDIO */ 180 181/* ? */ 182#define FTSDC010_CARD_INSERT 0x0 183#define FTSDC010_CARD_REMOVE FTSDC010_STATUS_REG_CARD_DETECT 184 185/* 0x34 - power control register */ 186#define FTSDC010_PCR_POWER(x) (((x) & 0xf) << 0) 187#define FTSDC010_PCR_POWER_ON (1 << 4) 188 189/* 0x38 - clock control register */ 190#define FTSDC010_CCR_CLK_DIV(x) (((x) & 0x7f) << 0) 191#define FTSDC010_CCR_CLK_SD (1 << 7) /* 0: MMC, 1: SD */ 192#define FTSDC010_CCR_CLK_DIS (1 << 8) 193#define FTSDC010_CCR_CLK_HISPD (1 << 9) /* high speed */ 194 195/* card type */ 196#define FTSDC010_CARD_TYPE_SD FTSDC010_CLOCK_REG_CARD_TYPE 197#define FTSDC010_CARD_TYPE_MMC 0x0 198 199/* 0x3c - bus width register */ 200#define FTSDC010_BWR_MODE_1BIT (1 << 0) /* 1 bit mode enabled */ 201#define FTSDC010_BWR_MODE_8BIT (1 << 1) /* 8 bit mode enabled */ 202#define FTSDC010_BWR_MODE_4BIT (1 << 2) /* 4 bit mode enabled */ 203#define FTSDC010_BWR_MODE_MASK (7 << 0) 204#define FTSDC010_BWR_MODE_SHIFT (0) 205#define FTSDC010_BWR_CAPS_1BIT (0 << 3) /* 1 bits mode supported */ 206#define FTSDC010_BWR_CAPS_4BIT (1 << 3) /* 1,4 bits mode supported */ 207#define FTSDC010_BWR_CAPS_8BIT (2 << 3) /* 1,4,8 bits mode supported */ 208#define FTSDC010_BWR_CAPS_MASK (3 << 3) 209#define FTSDC010_BWR_CAPS_SHIFT (3) 210#define FTSDC010_BWR_CARD_DETECT (1 << 5) 211 212/* 0x44 or 0x9c - feature register */ 213#define FTSDC010_FEATURE_FIFO_DEPTH(x) (((x) >> 0) & 0xff) 214#define FTSDC010_FEATURE_CPRM_FUNCTION (1 << 8) 215 216#define FTSDC010_FIFO_DEPTH_4 0x04 217#define FTSDC010_FIFO_DEPTH_8 0x08 218#define FTSDC010_FIFO_DEPTH_16 0x10 219 220/* 0x48 or 0xa0 - revision register */ 221#define FTSDC010_REV_REVISION(x) (((x) & 0xff) >> 0) 222#define FTSDC010_REV_MINOR(x) (((x) & 0xff00) >> 8) 223#define FTSDC010_REV_MAJOR(x) (((x) & 0xffff0000) >> 16) 224 225#ifdef CONFIG_FTSDC010_SDIO 226/* 0x44 - general purpose output */ 227#define FTSDC010_GPO_PORT(x) (((x) & 0xf) << 0) 228 229/* 0x6c - sdio control register 1 */ 230#define FTSDC010_SDIO_CTRL1_SDIO_BLK_SIZE(x) (((x) & 0xfff) << 0) 231#define FTSDC010_SDIO_CTRL1_SDIO_BLK_MODE (1 << 12) 232#define FTSDC010_SDIO_CTRL1_READ_WAIT_EN (1 << 13) 233#define FTSDC010_SDIO_CTRL1_SDIO_ENABLE (1 << 14) 234#define FTSDC010_SDIO_CTRL1_SDIO_BLK_NO(x) (((x) & 0x1ff) << 15) 235 236/* 0x70 - sdio control register 2 */ 237#define FTSDC010_SDIO_CTRL2_SUSP_READ_WAIT (1 << 0) 238#define FTSDC010_SDIO_CTRL2_SUSP_CMD_ABORT (1 << 1) 239 240/* 0x74 - sdio status register */ 241#define FTSDC010_SDIO_STATUS_SDIO_BLK_CNT(x) (((x) >> 0) & 0x1ffff) 242#define FTSDC010_SDIO_STATUS_FIFO_REMAIN_NO(x) (((x) >> 17) & 0xef) 243 244#endif /* CONFIG_FTSDC010_SDIO */ 245 246#endif /* __FTSDC010_H */ 247