mmc/host/cb710-mmc.h

0001 /* SPDX-License-Identifier: GPL-2.0-only */
0002 /*
0003  *  cb710/cb710-mmc.h
0004  *
0005  *  Copyright by Michał Mirosław, 2008-2009
0006  */
0007 #ifndef LINUX_CB710_MMC_H
0008 #define LINUX_CB710_MMC_H
0009
0010 #include <linux/cb710.h>
0011
0012 /* per-MMC-reader structure */
0013 struct cb710_mmc_reader {
0014     struct tasklet_struct finish_req_tasklet;
0015     struct mmc_request *mrq;
0016     spinlock_t irq_lock;
0017     unsigned char last_power_mode;
0018 };
0019
0020 /* some device struct walking */
0021
0022 static inline struct mmc_host *cb710_slot_to_mmc(struct cb710_slot *slot)
0023 {
0024     return platform_get_drvdata(&slot->pdev);
0025 }
0026
0027 static inline struct cb710_slot *cb710_mmc_to_slot(struct mmc_host *mmc)
0028 {
0029     struct platform_device *pdev = to_platform_device(mmc_dev(mmc));
0030     return cb710_pdev_to_slot(pdev);
0031 }
0032
0033 /* registers (this might be all wrong ;) */
0034
0035 #define CB710_MMC_DATA_PORT     0x00
0036
0037 #define CB710_MMC_CONFIG_PORT       0x04
0038 #define CB710_MMC_CONFIG0_PORT      0x04
0039 #define CB710_MMC_CONFIG1_PORT      0x05
0040 #define   CB710_MMC_C1_4BIT_DATA_BUS        0x40
0041 #define CB710_MMC_CONFIG2_PORT      0x06
0042 #define   CB710_MMC_C2_READ_PIO_SIZE_MASK   0x0F    /* N-1 */
0043 #define CB710_MMC_CONFIG3_PORT      0x07
0044
0045 #define CB710_MMC_CONFIGB_PORT      0x08
0046
0047 #define CB710_MMC_IRQ_ENABLE_PORT   0x0C
0048 #define   CB710_MMC_IE_TEST_MASK        0x00BF
0049 #define   CB710_MMC_IE_CARD_INSERTION_STATUS    0x1000
0050 #define   CB710_MMC_IE_IRQ_ENABLE       0x8000
0051 #define   CB710_MMC_IE_CISTATUS_MASK        \
0052         (CB710_MMC_IE_CARD_INSERTION_STATUS|CB710_MMC_IE_IRQ_ENABLE)
0053
0054 #define CB710_MMC_STATUS_PORT       0x10
0055 #define   CB710_MMC_STATUS_ERROR_EVENTS     0x60FF
0056 #define CB710_MMC_STATUS0_PORT      0x10
0057 #define   CB710_MMC_S0_FIFO_UNDERFLOW       0x40
0058 #define CB710_MMC_STATUS1_PORT      0x11
0059 #define   CB710_MMC_S1_COMMAND_SENT     0x01
0060 #define   CB710_MMC_S1_DATA_TRANSFER_DONE   0x02
0061 #define   CB710_MMC_S1_PIO_TRANSFER_DONE    0x04
0062 #define   CB710_MMC_S1_CARD_CHANGED     0x10
0063 #define   CB710_MMC_S1_RESET            0x20
0064 #define CB710_MMC_STATUS2_PORT      0x12
0065 #define   CB710_MMC_S2_FIFO_READY       0x01
0066 #define   CB710_MMC_S2_FIFO_EMPTY       0x02
0067 #define   CB710_MMC_S2_BUSY_10          0x10
0068 #define   CB710_MMC_S2_BUSY_20          0x20
0069 #define CB710_MMC_STATUS3_PORT      0x13
0070 #define   CB710_MMC_S3_CARD_DETECTED        0x02
0071 #define   CB710_MMC_S3_WRITE_PROTECTED      0x04
0072
0073 #define CB710_MMC_CMD_TYPE_PORT     0x14
0074 #define   CB710_MMC_RSP_TYPE_MASK       0x0007
0075 #define     CB710_MMC_RSP_R1            (0)
0076 #define     CB710_MMC_RSP_136           (5)
0077 #define     CB710_MMC_RSP_NO_CRC        (2)
0078 #define   CB710_MMC_RSP_PRESENT_MASK        0x0018
0079 #define     CB710_MMC_RSP_NONE          (0 << 3)
0080 #define     CB710_MMC_RSP_PRESENT       (1 << 3)
0081 #define     CB710_MMC_RSP_PRESENT_X     (2 << 3)
0082 #define   CB710_MMC_CMD_TYPE_MASK       0x0060
0083 #define     CB710_MMC_CMD_BC            (0 << 5)
0084 #define     CB710_MMC_CMD_BCR           (1 << 5)
0085 #define     CB710_MMC_CMD_AC            (2 << 5)
0086 #define     CB710_MMC_CMD_ADTC          (3 << 5)
0087 #define   CB710_MMC_DATA_READ           0x0080
0088 #define   CB710_MMC_CMD_CODE_MASK       0x3F00
0089 #define   CB710_MMC_CMD_CODE_SHIFT      8
0090 #define   CB710_MMC_IS_APP_CMD          0x4000
0091 #define   CB710_MMC_RSP_BUSY            0x8000
0092
0093 #define CB710_MMC_CMD_PARAM_PORT    0x18
0094 #define CB710_MMC_TRANSFER_SIZE_PORT    0x1C
0095 #define CB710_MMC_RESPONSE0_PORT    0x20
0096 #define CB710_MMC_RESPONSE1_PORT    0x24
0097 #define CB710_MMC_RESPONSE2_PORT    0x28
0098 #define CB710_MMC_RESPONSE3_PORT    0x2C
0099
0100 #endif /* LINUX_CB710_MMC_H */