Merge tag 'mt76-for-kvalo-2020-06-07' of https://github.com/nbd168/wireless
[linux-2.6-block.git] / include / linux / mmc / sd.h
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2874c5fd 1/* SPDX-License-Identifier: GPL-2.0-or-later */
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2/*
3 * include/linux/mmc/sd.h
4 *
5 * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
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6 */
7
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8#ifndef LINUX_MMC_SD_H
9#define LINUX_MMC_SD_H
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10
11/* SD commands type argument response */
12 /* class 0 */
13/* This is basically the same command as for MMC with some quirks. */
14#define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */
15#define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */
f2119df6 16#define SD_SWITCH_VOLTAGE 11 /* ac R1 */
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17
18 /* class 10 */
19#define SD_SWITCH 6 /* adtc [31:0] See below R1 */
20
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21 /* class 5 */
22#define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */
23#define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */
24
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25 /* Application commands */
26#define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */
dfe86cba 27#define SD_APP_SD_STATUS 13 /* adtc R1 */
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28#define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */
29#define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */
30#define SD_APP_SEND_SCR 51 /* adtc R1 */
31
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32/* OCR bit definitions */
33#define SD_OCR_S18R (1 << 24) /* 1.8V switching request */
34#define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */
35#define SD_OCR_XPC (1 << 28) /* SDXC power control */
36#define SD_OCR_CCS (1 << 30) /* Card Capacity Status */
37
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38/*
39 * SD_SWITCH argument format:
40 *
41 * [31] Check (0) or switch (1)
42 * [30:24] Reserved (0)
43 * [23:20] Function group 6
44 * [19:16] Function group 5
45 * [15:12] Function group 4
46 * [11:8] Function group 3
47 * [7:4] Function group 2
48 * [3:0] Function group 1
49 */
50
51/*
52 * SD_SEND_IF_COND argument format:
53 *
54 * [31:12] Reserved (0)
55 * [11:8] Host Voltage Supply Flags
56 * [7:0] Check Pattern (0xAA)
57 */
58
59/*
60 * SCR field definitions
61 */
62
63#define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */
64#define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */
f0d89972 65#define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */
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66
67/*
68 * SD bus widths
69 */
70#define SD_BUS_WIDTH_1 0
71#define SD_BUS_WIDTH_4 2
72
73/*
74 * SD_SWITCH mode
75 */
76#define SD_SWITCH_CHECK 0
77#define SD_SWITCH_SET 1
78
79/*
80 * SD_SWITCH function groups
81 */
82#define SD_SWITCH_GRP_ACCESS 0
83
84/*
85 * SD_SWITCH access modes
86 */
87#define SD_SWITCH_ACCESS_DEF 0
88#define SD_SWITCH_ACCESS_HS 1
89
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90/*
91 * Erase/discard
92 */
93#define SD_ERASE_ARG 0x00000000
bc47e2f6 94#define SD_DISCARD_ARG 0x00000001
01904ff7 95
100e9186 96#endif /* LINUX_MMC_SD_H */