| Pierre Ossman | da7fbe5 | 2006-12-24 22:46:55 +0100 | [diff] [blame] | 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 | |