1*da7fbe58SPierre Ossman /* 2*da7fbe58SPierre Ossman * include/linux/mmc/sd.h 3*da7fbe58SPierre Ossman * 4*da7fbe58SPierre Ossman * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved. 5*da7fbe58SPierre Ossman * 6*da7fbe58SPierre Ossman * This program is free software; you can redistribute it and/or modify 7*da7fbe58SPierre Ossman * it under the terms of the GNU General Public License as published by 8*da7fbe58SPierre Ossman * the Free Software Foundation; either version 2 of the License, or (at 9*da7fbe58SPierre Ossman * your option) any later version. 10*da7fbe58SPierre Ossman */ 11*da7fbe58SPierre Ossman 12*da7fbe58SPierre Ossman #ifndef MMC_SD_H 13*da7fbe58SPierre Ossman #define MMC_SD_H 14*da7fbe58SPierre Ossman 15*da7fbe58SPierre Ossman /* SD commands type argument response */ 16*da7fbe58SPierre Ossman /* class 0 */ 17*da7fbe58SPierre Ossman /* This is basically the same command as for MMC with some quirks. */ 18*da7fbe58SPierre Ossman #define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */ 19*da7fbe58SPierre Ossman #define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */ 20*da7fbe58SPierre Ossman 21*da7fbe58SPierre Ossman /* class 10 */ 22*da7fbe58SPierre Ossman #define SD_SWITCH 6 /* adtc [31:0] See below R1 */ 23*da7fbe58SPierre Ossman 24*da7fbe58SPierre Ossman /* Application commands */ 25*da7fbe58SPierre Ossman #define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */ 26*da7fbe58SPierre Ossman #define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */ 27*da7fbe58SPierre Ossman #define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */ 28*da7fbe58SPierre Ossman #define SD_APP_SEND_SCR 51 /* adtc R1 */ 29*da7fbe58SPierre Ossman 30*da7fbe58SPierre Ossman /* 31*da7fbe58SPierre Ossman * SD_SWITCH argument format: 32*da7fbe58SPierre Ossman * 33*da7fbe58SPierre Ossman * [31] Check (0) or switch (1) 34*da7fbe58SPierre Ossman * [30:24] Reserved (0) 35*da7fbe58SPierre Ossman * [23:20] Function group 6 36*da7fbe58SPierre Ossman * [19:16] Function group 5 37*da7fbe58SPierre Ossman * [15:12] Function group 4 38*da7fbe58SPierre Ossman * [11:8] Function group 3 39*da7fbe58SPierre Ossman * [7:4] Function group 2 40*da7fbe58SPierre Ossman * [3:0] Function group 1 41*da7fbe58SPierre Ossman */ 42*da7fbe58SPierre Ossman 43*da7fbe58SPierre Ossman /* 44*da7fbe58SPierre Ossman * SD_SEND_IF_COND argument format: 45*da7fbe58SPierre Ossman * 46*da7fbe58SPierre Ossman * [31:12] Reserved (0) 47*da7fbe58SPierre Ossman * [11:8] Host Voltage Supply Flags 48*da7fbe58SPierre Ossman * [7:0] Check Pattern (0xAA) 49*da7fbe58SPierre Ossman */ 50*da7fbe58SPierre Ossman 51*da7fbe58SPierre Ossman /* 52*da7fbe58SPierre Ossman * SCR field definitions 53*da7fbe58SPierre Ossman */ 54*da7fbe58SPierre Ossman 55*da7fbe58SPierre Ossman #define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */ 56*da7fbe58SPierre Ossman #define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */ 57*da7fbe58SPierre Ossman #define SCR_SPEC_VER_2 2 /* Implements system specification 2.00 */ 58*da7fbe58SPierre Ossman 59*da7fbe58SPierre Ossman /* 60*da7fbe58SPierre Ossman * SD bus widths 61*da7fbe58SPierre Ossman */ 62*da7fbe58SPierre Ossman #define SD_BUS_WIDTH_1 0 63*da7fbe58SPierre Ossman #define SD_BUS_WIDTH_4 2 64*da7fbe58SPierre Ossman 65*da7fbe58SPierre Ossman /* 66*da7fbe58SPierre Ossman * SD_SWITCH mode 67*da7fbe58SPierre Ossman */ 68*da7fbe58SPierre Ossman #define SD_SWITCH_CHECK 0 69*da7fbe58SPierre Ossman #define SD_SWITCH_SET 1 70*da7fbe58SPierre Ossman 71*da7fbe58SPierre Ossman /* 72*da7fbe58SPierre Ossman * SD_SWITCH function groups 73*da7fbe58SPierre Ossman */ 74*da7fbe58SPierre Ossman #define SD_SWITCH_GRP_ACCESS 0 75*da7fbe58SPierre Ossman 76*da7fbe58SPierre Ossman /* 77*da7fbe58SPierre Ossman * SD_SWITCH access modes 78*da7fbe58SPierre Ossman */ 79*da7fbe58SPierre Ossman #define SD_SWITCH_ACCESS_DEF 0 80*da7fbe58SPierre Ossman #define SD_SWITCH_ACCESS_HS 1 81*da7fbe58SPierre Ossman 82*da7fbe58SPierre Ossman #endif 83*da7fbe58SPierre Ossman 84