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124 lines
3.6 KiB
C
124 lines
3.6 KiB
C
/*
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* include/linux/mmc/sd.h
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*
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* Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
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* Copyright (C) 2018 CTCaer
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or (at
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* your option) any later version.
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*/
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#ifndef LINUX_MMC_SD_H
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#define LINUX_MMC_SD_H
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/* SD commands type argument response */
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/* class 0 */
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/* This is basically the same command as for MMC with some quirks. */
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#define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */
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#define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */
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#define SD_SWITCH_VOLTAGE 11 /* ac R1 */
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/* class 10 */
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#define SD_SWITCH 6 /* adtc [31:0] See below R1 */
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/* class 5 */
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#define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */
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#define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */
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/* Application commands */
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#define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */
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#define SD_APP_SD_STATUS 13 /* adtc R1 */
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#define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */
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#define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */
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#define SD_APP_SET_CLR_CARD_DETECT 42
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#define SD_APP_SEND_SCR 51 /* adtc R1 */
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/* OCR bit definitions */
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#define SD_OCR_S18R (1 << 24) /* 1.8V switching request */
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#define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */
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#define SD_OCR_XPC (1 << 28) /* SDXC power control */
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#define SD_OCR_CCS (1 << 30) /* Card Capacity Status */
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#define SD_OCR_VDD_32_33 (1 << 20) /* VDD voltage 3.2 ~ 3.3 */
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/*
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* SD_SWITCH argument format:
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*
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* [31] Check (0) or switch (1)
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* [30:24] Reserved (0)
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* [23:20] Function group 6
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* [19:16] Function group 5
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* [15:12] Function group 4
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* [11:8] Function group 3
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* [7:4] Function group 2
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* [3:0] Function group 1
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*/
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/*
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* SD_SEND_IF_COND argument format:
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*
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* [31:12] Reserved (0)
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* [11:8] Host Voltage Supply Flags
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* [7:0] Check Pattern (0xAA)
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*/
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/*
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* SCR field definitions
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*/
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#define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */
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#define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */
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#define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */
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#define SD_SCR_BUS_WIDTH_1 (1<<0)
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#define SD_SCR_BUS_WIDTH_4 (1<<2)
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/*
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* SD bus widths
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*/
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#define SD_BUS_WIDTH_1 0
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#define SD_BUS_WIDTH_4 2
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/*
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* SD bus speeds
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*/
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#define UHS_SDR12_BUS_SPEED 0
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#define HIGH_SPEED_BUS_SPEED 1
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#define UHS_SDR25_BUS_SPEED 1
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#define UHS_SDR50_BUS_SPEED 2
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#define UHS_SDR104_BUS_SPEED 3
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#define UHS_DDR50_BUS_SPEED 4
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#define HS400_BUS_SPEED 5
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#define SD_MODE_HIGH_SPEED (1 << HIGH_SPEED_BUS_SPEED)
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#define SD_MODE_UHS_SDR12 (1 << UHS_SDR12_BUS_SPEED)
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#define SD_MODE_UHS_SDR25 (1 << UHS_SDR25_BUS_SPEED)
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#define SD_MODE_UHS_SDR50 (1 << UHS_SDR50_BUS_SPEED)
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#define SD_MODE_UHS_SDR104 (1 << UHS_SDR104_BUS_SPEED)
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#define SD_MODE_UHS_DDR50 (1 << UHS_DDR50_BUS_SPEED)
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#define SD_DRIVER_TYPE_B 0x01
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#define SD_DRIVER_TYPE_A 0x02
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#define SD_SET_CURRENT_LIMIT_200 0
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#define SD_SET_CURRENT_LIMIT_400 1
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#define SD_SET_CURRENT_LIMIT_600 2
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#define SD_SET_CURRENT_LIMIT_800 3
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/*
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* SD_SWITCH mode
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*/
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#define SD_SWITCH_CHECK 0
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#define SD_SWITCH_SET 1
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/*
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* SD_SWITCH function groups
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*/
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#define SD_SWITCH_GRP_ACCESS 0
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/*
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* SD_SWITCH access modes
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*/
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#define SD_SWITCH_ACCESS_DEF 0
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#define SD_SWITCH_ACCESS_HS 1
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#endif /* LINUX_MMC_SD_H */
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