1/* 2 * Toshiba PCI Secure Digital Host Controller Interface driver 3 * 4 * Copyright (C) 2014 Ondrej Zary 5 * Copyright (C) 2007 Richard Betts, All Rights Reserved. 6 * 7 * Based on asic3_mmc.c Copyright (c) 2005 SDG Systems, LLC 8 * 9 * This program is free software; you can redistribute it and/or modify 10 * it under the terms of the GNU General Public License as published by 11 * the Free Software Foundation; either version 2 of the License, or (at 12 * your option) any later version. 13 */ 14 15#define HCLK 33000000 /* 33 MHz (PCI clock) */ 16 17#define SD_PCICFG_CLKSTOP 0x40 /* 0x1f = clock controller, 0 = stop */ 18#define SD_PCICFG_GATEDCLK 0x41 /* Gated clock */ 19#define SD_PCICFG_CLKMODE 0x42 /* Control clock of SD controller */ 20#define SD_PCICFG_PINSTATUS 0x44 /* R/O: read status of SD pins */ 21#define SD_PCICFG_POWER1 0x48 22#define SD_PCICFG_POWER2 0x49 23#define SD_PCICFG_POWER3 0x4a 24#define SD_PCICFG_CARDDETECT 0x4c 25#define SD_PCICFG_SLOTS 0x50 /* R/O: define support slot number */ 26#define SD_PCICFG_EXTGATECLK1 0xf0 /* Could be used for gated clock */ 27#define SD_PCICFG_EXTGATECLK2 0xf1 /* Could be used for gated clock */ 28#define SD_PCICFG_EXTGATECLK3 0xf9 /* Bit 1: double buffer/single buffer */ 29#define SD_PCICFG_SDLED_ENABLE1 0xfa 30#define SD_PCICFG_SDLED_ENABLE2 0xfe 31 32#define SD_PCICFG_CLKMODE_DIV_DISABLE BIT(0) 33#define SD_PCICFG_CLKSTOP_ENABLE_ALL 0x1f 34#define SD_PCICFG_LED_ENABLE1_START 0x12 35#define SD_PCICFG_LED_ENABLE2_START 0x80 36 37#define SD_PCICFG_PWR1_33V 0x08 /* Set for 3.3 volts */ 38#define SD_PCICFG_PWR1_OFF 0x00 /* Turn off power */ 39#define SD_PCICFG_PWR2_AUTO 0x02 40 41#define SD_CMD 0x00 /* also for SDIO */ 42#define SD_ARG0 0x04 /* also for SDIO */ 43#define SD_ARG1 0x06 /* also for SDIO */ 44#define SD_STOPINTERNAL 0x08 45#define SD_BLOCKCOUNT 0x0a /* also for SDIO */ 46#define SD_RESPONSE0 0x0c /* also for SDIO */ 47#define SD_RESPONSE1 0x0e /* also for SDIO */ 48#define SD_RESPONSE2 0x10 /* also for SDIO */ 49#define SD_RESPONSE3 0x12 /* also for SDIO */ 50#define SD_RESPONSE4 0x14 /* also for SDIO */ 51#define SD_RESPONSE5 0x16 /* also for SDIO */ 52#define SD_RESPONSE6 0x18 /* also for SDIO */ 53#define SD_RESPONSE7 0x1a /* also for SDIO */ 54#define SD_CARDSTATUS 0x1c /* also for SDIO */ 55#define SD_BUFFERCTRL 0x1e /* also for SDIO */ 56#define SD_INTMASKCARD 0x20 /* also for SDIO */ 57#define SD_INTMASKBUFFER 0x22 /* also for SDIO */ 58#define SD_CARDCLOCKCTRL 0x24 59#define SD_CARDXFERDATALEN 0x26 /* also for SDIO */ 60#define SD_CARDOPTIONSETUP 0x28 /* also for SDIO */ 61#define SD_ERRORSTATUS0 0x2c /* also for SDIO */ 62#define SD_ERRORSTATUS1 0x2e /* also for SDIO */ 63#define SD_DATAPORT 0x30 /* also for SDIO */ 64#define SD_TRANSACTIONCTRL 0x34 /* also for SDIO */ 65#define SD_SOFTWARERESET 0xe0 /* also for SDIO */ 66 67/* registers above marked "also for SDIO" and all SDIO registers below can be 68 * accessed at SDIO_BASE + reg address */ 69#define SDIO_BASE 0x100 70 71#define SDIO_CARDPORTSEL 0x02 72#define SDIO_CARDINTCTRL 0x36 73#define SDIO_CLOCKNWAITCTRL 0x38 74#define SDIO_HOSTINFORMATION 0x3a 75#define SDIO_ERRORCTRL 0x3c 76#define SDIO_LEDCTRL 0x3e 77 78#define SD_TRANSCTL_SET BIT(8) 79 80#define SD_CARDCLK_DIV_DISABLE BIT(15) 81#define SD_CARDCLK_ENABLE_CLOCK BIT(8) 82#define SD_CARDCLK_CLK_DIV_512 BIT(7) 83#define SD_CARDCLK_CLK_DIV_256 BIT(6) 84#define SD_CARDCLK_CLK_DIV_128 BIT(5) 85#define SD_CARDCLK_CLK_DIV_64 BIT(4) 86#define SD_CARDCLK_CLK_DIV_32 BIT(3) 87#define SD_CARDCLK_CLK_DIV_16 BIT(2) 88#define SD_CARDCLK_CLK_DIV_8 BIT(1) 89#define SD_CARDCLK_CLK_DIV_4 BIT(0) 90#define SD_CARDCLK_CLK_DIV_2 0 91 92#define SD_CARDOPT_REQUIRED 0x000e 93#define SD_CARDOPT_DATA_RESP_TIMEOUT(x) (((x) & 0x0f) << 4) /* 4 bits */ 94#define SD_CARDOPT_C2_MODULE_ABSENT BIT(14) 95#define SD_CARDOPT_DATA_XFR_WIDTH_1 (1 << 15) 96#define SD_CARDOPT_DATA_XFR_WIDTH_4 (0 << 15) 97 98#define SD_CMD_TYPE_CMD (0 << 6) 99#define SD_CMD_TYPE_ACMD (1 << 6) 100#define SD_CMD_TYPE_AUTHEN (2 << 6) 101#define SD_CMD_RESP_TYPE_NONE (3 << 8) 102#define SD_CMD_RESP_TYPE_EXT_R1 (4 << 8) 103#define SD_CMD_RESP_TYPE_EXT_R1B (5 << 8) 104#define SD_CMD_RESP_TYPE_EXT_R2 (6 << 8) 105#define SD_CMD_RESP_TYPE_EXT_R3 (7 << 8) 106#define SD_CMD_RESP_TYPE_EXT_R6 (4 << 8) 107#define SD_CMD_RESP_TYPE_EXT_R7 (4 << 8) 108#define SD_CMD_DATA_PRESENT BIT(11) 109#define SD_CMD_TRANSFER_READ BIT(12) 110#define SD_CMD_MULTI_BLOCK BIT(13) 111#define SD_CMD_SECURITY_CMD BIT(14) 112 113#define SD_STOPINT_ISSUE_CMD12 BIT(0) 114#define SD_STOPINT_AUTO_ISSUE_CMD12 BIT(8) 115 116#define SD_CARD_RESP_END BIT(0) 117#define SD_CARD_RW_END BIT(2) 118#define SD_CARD_CARD_REMOVED_0 BIT(3) 119#define SD_CARD_CARD_INSERTED_0 BIT(4) 120#define SD_CARD_PRESENT_0 BIT(5) 121#define SD_CARD_UNK6 BIT(6) 122#define SD_CARD_WRITE_PROTECT BIT(7) 123#define SD_CARD_CARD_REMOVED_3 BIT(8) 124#define SD_CARD_CARD_INSERTED_3 BIT(9) 125#define SD_CARD_PRESENT_3 BIT(10) 126 127#define SD_BUF_CMD_INDEX_ERR BIT(16) 128#define SD_BUF_CRC_ERR BIT(17) 129#define SD_BUF_STOP_BIT_END_ERR BIT(18) 130#define SD_BUF_DATA_TIMEOUT BIT(19) 131#define SD_BUF_OVERFLOW BIT(20) 132#define SD_BUF_UNDERFLOW BIT(21) 133#define SD_BUF_CMD_TIMEOUT BIT(22) 134#define SD_BUF_UNK7 BIT(23) 135#define SD_BUF_READ_ENABLE BIT(24) 136#define SD_BUF_WRITE_ENABLE BIT(25) 137#define SD_BUF_ILLEGAL_FUNCTION BIT(29) 138#define SD_BUF_CMD_BUSY BIT(30) 139#define SD_BUF_ILLEGAL_ACCESS BIT(31) 140 141#define SD_ERR0_RESP_CMD_ERR BIT(0) 142#define SD_ERR0_RESP_NON_CMD12_END_BIT_ERR BIT(2) 143#define SD_ERR0_RESP_CMD12_END_BIT_ERR BIT(3) 144#define SD_ERR0_READ_DATA_END_BIT_ERR BIT(4) 145#define SD_ERR0_WRITE_CRC_STATUS_END_BIT_ERR BIT(5) 146#define SD_ERR0_RESP_NON_CMD12_CRC_ERR BIT(8) 147#define SD_ERR0_RESP_CMD12_CRC_ERR BIT(9) 148#define SD_ERR0_READ_DATA_CRC_ERR BIT(10) 149#define SD_ERR0_WRITE_CMD_CRC_ERR BIT(11) 150 151#define SD_ERR1_NO_CMD_RESP BIT(16) 152#define SD_ERR1_TIMEOUT_READ_DATA BIT(20) 153#define SD_ERR1_TIMEOUT_CRS_STATUS BIT(21) 154#define SD_ERR1_TIMEOUT_CRC_BUSY BIT(22) 155 156#define IRQ_DONT_CARE_BITS (SD_CARD_PRESENT_3 \ 157 | SD_CARD_WRITE_PROTECT \ 158 | SD_CARD_UNK6 \ 159 | SD_CARD_PRESENT_0 \ 160 | SD_BUF_UNK7 \ 161 | SD_BUF_CMD_BUSY) 162 163struct toshsd_host { 164 struct pci_dev *pdev; 165 struct mmc_host *mmc; 166 167 spinlock_t lock; 168 169 struct mmc_request *mrq;/* Current request */ 170 struct mmc_command *cmd;/* Current command */ 171 struct mmc_data *data; /* Current data request */ 172 173 struct sg_mapping_iter sg_miter; /* for PIO */ 174 175 void __iomem *ioaddr; /* mapped address */ 176}; 177