drivers/mmc/host/cb710-mmc.h

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2 /*
   3  *  cb710/cb710-mmc.h
   4  *
   5  *  Copyright by Michał Mirosław, 2008-2009
   6  */
   7 #ifndef LINUX_CB710_MMC_H
   8 #define LINUX_CB710_MMC_H
   9
  10 #include <linux/cb710.h>
  11 #include <linux/workqueue.h>
  12
  13 /* per-MMC-reader structure */
  14 struct cb710_mmc_reader {
  15         struct work_struct finish_req_bh_work;
  16         struct mmc_request *mrq;
  17         spinlock_t irq_lock;
  18         unsigned char last_power_mode;
  19 };
  20
  21 /* some device struct walking */
  22
  23 static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
  24 {
  25         return platform_get_drvdata(&slot->pdev);
  26 }
  27
  28 static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
  29 {
  30         struct platform_device *pdev = to_platform_device(mmc_dev(mmc));
  31         return cb710_pdev_to_slot(pdev);
  32 }
  33
  34 /* registers (this might be all wrong ;) */
  35
  36 #define CB710_MMC_DATA_PORT             0x00
  37
  38 #define CB710_MMC_CONFIG_PORT           0x04
  39 #define CB710_MMC_CONFIG0_PORT          0x04
  40 #define CB710_MMC_CONFIG1_PORT          0x05
  41 #define   CB710_MMC_C1_4BIT_DATA_BUS            0x40
  42 #define CB710_MMC_CONFIG2_PORT          0x06
  43 #define   CB710_MMC_C2_READ_PIO_SIZE_MASK       0x0F    /* N-1 */
  44 #define CB710_MMC_CONFIG3_PORT          0x07
  45
  46 #define CB710_MMC_CONFIGB_PORT          0x08
  47
  48 #define CB710_MMC_IRQ_ENABLE_PORT       0x0C
  49 #define   CB710_MMC_IE_TEST_MASK                0x00BF
  50 #define   CB710_MMC_IE_CARD_INSERTION_STATUS    0x1000
  51 #define   CB710_MMC_IE_IRQ_ENABLE               0x8000
  52 #define   CB710_MMC_IE_CISTATUS_MASK            \
  53                 (CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)
  54
  55 #define CB710_MMC_STATUS_PORT           0x10
  56 #define   CB710_MMC_STATUS_ERROR_EVENTS         0x60FF
  57 #define CB710_MMC_STATUS0_PORT          0x10
  58 #define   CB710_MMC_S0_FIFO_UNDERFLOW           0x40
  59 #define CB710_MMC_STATUS1_PORT          0x11
  60 #define   CB710_MMC_S1_COMMAND_SENT             0x01
  61 #define   CB710_MMC_S1_DATA_TRANSFER_DONE       0x02
  62 #define   CB710_MMC_S1_PIO_TRANSFER_DONE        0x04
  63 #define   CB710_MMC_S1_CARD_CHANGED             0x10
  64 #define   CB710_MMC_S1_RESET                    0x20
  65 #define CB710_MMC_STATUS2_PORT          0x12
  66 #define   CB710_MMC_S2_FIFO_READY               0x01
  67 #define   CB710_MMC_S2_FIFO_EMPTY               0x02
  68 #define   CB710_MMC_S2_BUSY_10                  0x10
  69 #define   CB710_MMC_S2_BUSY_20                  0x20
  70 #define CB710_MMC_STATUS3_PORT          0x13
  71 #define   CB710_MMC_S3_CARD_DETECTED            0x02
  72 #define   CB710_MMC_S3_WRITE_PROTECTED          0x04
  73
  74 #define CB710_MMC_CMD_TYPE_PORT         0x14
  75 #define   CB710_MMC_RSP_TYPE_MASK               0x0007
  76 #define     CB710_MMC_RSP_R1                    (0)
  77 #define     CB710_MMC_RSP_136                   (5)
  78 #define     CB710_MMC_RSP_NO_CRC                (2)
  79 #define   CB710_MMC_RSP_PRESENT_MASK            0x0018
  80 #define     CB710_MMC_RSP_NONE                  (0 << 3)
  81 #define     CB710_MMC_RSP_PRESENT               (1 << 3)
  82 #define     CB710_MMC_RSP_PRESENT_X             (2 << 3)
  83 #define   CB710_MMC_CMD_TYPE_MASK               0x0060
  84 #define     CB710_MMC_CMD_BC                    (0 << 5)
  85 #define     CB710_MMC_CMD_BCR                   (1 << 5)
  86 #define     CB710_MMC_CMD_AC                    (2 << 5)
  87 #define     CB710_MMC_CMD_ADTC                  (3 << 5)
  88 #define   CB710_MMC_DATA_READ                   0x0080
  89 #define   CB710_MMC_CMD_CODE_MASK               0x3F00
  90 #define   CB710_MMC_CMD_CODE_SHIFT              8
  91 #define   CB710_MMC_IS_APP_CMD                  0x4000
  92 #define   CB710_MMC_RSP_BUSY                    0x8000
  93
  94 #define CB710_MMC_CMD_PARAM_PORT        0x18
  95 #define CB710_MMC_TRANSFER_SIZE_PORT    0x1C
  96 #define CB710_MMC_RESPONSE0_PORT        0x20
  97 #define CB710_MMC_RESPONSE1_PORT        0x24
  98 #define CB710_MMC_RESPONSE2_PORT        0x28
  99 #define CB710_MMC_RESPONSE3_PORT        0x2C
 100
 101 #endif /* LINUX_CB710_MMC_H */