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da7fbe58 PO |
1 | /* |
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 | ||
24 | /* Application commands */ | |
25 | #define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */ | |
26 | #define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */ | |
27 | #define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */ | |
28 | #define SD_APP_SEND_SCR 51 /* adtc R1 */ | |
29 | ||
30 | /* | |
31 | * SD_SWITCH argument format: | |
32 | * | |
33 | * [31] Check (0) or switch (1) | |
34 | * [30:24] Reserved (0) | |
35 | * [23:20] Function group 6 | |
36 | * [19:16] Function group 5 | |
37 | * [15:12] Function group 4 | |
38 | * [11:8] Function group 3 | |
39 | * [7:4] Function group 2 | |
40 | * [3:0] Function group 1 | |
41 | */ | |
42 | ||
43 | /* | |
44 | * SD_SEND_IF_COND argument format: | |
45 | * | |
46 | * [31:12] Reserved (0) | |
47 | * [11:8] Host Voltage Supply Flags | |
48 | * [7:0] Check Pattern (0xAA) | |
49 | */ | |
50 | ||
51 | /* | |
52 | * SCR field definitions | |
53 | */ | |
54 | ||
55 | #define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */ | |
56 | #define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */ | |
57 | #define SCR_SPEC_VER_2 2 /* Implements system specification 2.00 */ | |
58 | ||
59 | /* | |
60 | * SD bus widths | |
61 | */ | |
62 | #define SD_BUS_WIDTH_1 0 | |
63 | #define SD_BUS_WIDTH_4 2 | |
64 | ||
65 | /* | |
66 | * SD_SWITCH mode | |
67 | */ | |
68 | #define SD_SWITCH_CHECK 0 | |
69 | #define SD_SWITCH_SET 1 | |
70 | ||
71 | /* | |
72 | * SD_SWITCH function groups | |
73 | */ | |
74 | #define SD_SWITCH_GRP_ACCESS 0 | |
75 | ||
76 | /* | |
77 | * SD_SWITCH access modes | |
78 | */ | |
79 | #define SD_SWITCH_ACCESS_DEF 0 | |
80 | #define SD_SWITCH_ACCESS_HS 1 | |
81 | ||
82 | #endif | |
83 |