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Pierre Ossmanda7fbe52006-12-24 22:46:55 +01001/*
2 * include/linux/mmc/sd.h
3 *
4 * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or (at
9 * your option) any later version.
10 */
11
12#ifndef MMC_SD_H
13#define MMC_SD_H
14
15/* SD commands type argument response */
16 /* class 0 */
17/* This is basically the same command as for MMC with some quirks. */
18#define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */
19#define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */
20
21 /* class 10 */
22#define SD_SWITCH 6 /* adtc [31:0] See below R1 */
23
Adrian Hunterdfe86cb2010-08-11 14:17:46 -070024 /* class 5 */
25#define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */
26#define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */
27
Pierre Ossmanda7fbe52006-12-24 22:46:55 +010028 /* Application commands */
29#define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */
Adrian Hunterdfe86cb2010-08-11 14:17:46 -070030#define SD_APP_SD_STATUS 13 /* adtc R1 */
Pierre Ossmanda7fbe52006-12-24 22:46:55 +010031#define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */
32#define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */
33#define SD_APP_SEND_SCR 51 /* adtc R1 */
34
35/*
36 * SD_SWITCH argument format:
37 *
38 * [31] Check (0) or switch (1)
39 * [30:24] Reserved (0)
40 * [23:20] Function group 6
41 * [19:16] Function group 5
42 * [15:12] Function group 4
43 * [11:8] Function group 3
44 * [7:4] Function group 2
45 * [3:0] Function group 1
46 */
47
48/*
49 * SD_SEND_IF_COND argument format:
50 *
51 * [31:12] Reserved (0)
52 * [11:8] Host Voltage Supply Flags
53 * [7:0] Check Pattern (0xAA)
54 */
55
56/*
57 * SCR field definitions
58 */
59
60#define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */
61#define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */
62#define SCR_SPEC_VER_2 2 /* Implements system specification 2.00 */
63
64/*
65 * SD bus widths
66 */
67#define SD_BUS_WIDTH_1 0
68#define SD_BUS_WIDTH_4 2
69
70/*
71 * SD_SWITCH mode
72 */
73#define SD_SWITCH_CHECK 0
74#define SD_SWITCH_SET 1
75
76/*
77 * SD_SWITCH function groups
78 */
79#define SD_SWITCH_GRP_ACCESS 0
80
81/*
82 * SD_SWITCH access modes
83 */
84#define SD_SWITCH_ACCESS_DEF 0
85#define SD_SWITCH_ACCESS_HS 1
86
87#endif
88