drivers/mmc/host/toshsd.h

   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
 163 struct 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 };