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 /* 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 28 /* Application commands */ 29 #define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */ 30 #define SD_APP_SD_STATUS 13 /* adtc R1 */ 31 #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 89