1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * include/linux/mmc/sd.h 4 * 5 * Copyright (C) 2005-2007 Pierre Ossman, All Rights Reserved. 6 */ 7 8 #ifndef LINUX_MMC_SD_H 9 #define LINUX_MMC_SD_H 10 11 /* SD commands type argument response */ 12 /* class 0 */ 13 /* This is basically the same command as for MMC with some quirks. */ 14 #define SD_SEND_RELATIVE_ADDR 3 /* bcr R6 */ 15 #define SD_SEND_IF_COND 8 /* bcr [11:0] See below R7 */ 16 #define SD_SWITCH_VOLTAGE 11 /* ac R1 */ 17 18 /* class 10 */ 19 #define SD_SWITCH 6 /* adtc [31:0] See below R1 */ 20 21 /* class 5 */ 22 #define SD_ERASE_WR_BLK_START 32 /* ac [31:0] data addr R1 */ 23 #define SD_ERASE_WR_BLK_END 33 /* ac [31:0] data addr R1 */ 24 25 /* Application commands */ 26 #define SD_APP_SET_BUS_WIDTH 6 /* ac [1:0] bus width R1 */ 27 #define SD_APP_SD_STATUS 13 /* adtc R1 */ 28 #define SD_APP_SEND_NUM_WR_BLKS 22 /* adtc R1 */ 29 #define SD_APP_OP_COND 41 /* bcr [31:0] OCR R3 */ 30 #define SD_APP_SEND_SCR 51 /* adtc R1 */ 31 32 /* OCR bit definitions */ 33 #define SD_OCR_S18R (1 << 24) /* 1.8V switching request */ 34 #define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */ 35 #define SD_OCR_XPC (1 << 28) /* SDXC power control */ 36 #define SD_OCR_CCS (1 << 30) /* Card Capacity Status */ 37 38 /* 39 * SD_SWITCH argument format: 40 * 41 * [31] Check (0) or switch (1) 42 * [30:24] Reserved (0) 43 * [23:20] Function group 6 44 * [19:16] Function group 5 45 * [15:12] Function group 4 46 * [11:8] Function group 3 47 * [7:4] Function group 2 48 * [3:0] Function group 1 49 */ 50 51 /* 52 * SD_SEND_IF_COND argument format: 53 * 54 * [31:12] Reserved (0) 55 * [11:8] Host Voltage Supply Flags 56 * [7:0] Check Pattern (0xAA) 57 */ 58 59 /* 60 * SCR field definitions 61 */ 62 63 #define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */ 64 #define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */ 65 #define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */ 66 67 /* 68 * SD bus widths 69 */ 70 #define SD_BUS_WIDTH_1 0 71 #define SD_BUS_WIDTH_4 2 72 73 /* 74 * SD_SWITCH mode 75 */ 76 #define SD_SWITCH_CHECK 0 77 #define SD_SWITCH_SET 1 78 79 /* 80 * SD_SWITCH function groups 81 */ 82 #define SD_SWITCH_GRP_ACCESS 0 83 84 /* 85 * SD_SWITCH access modes 86 */ 87 #define SD_SWITCH_ACCESS_DEF 0 88 #define SD_SWITCH_ACCESS_HS 1 89 90 /* 91 * Erase/discard 92 */ 93 #define SD_ERASE_ARG 0x00000000 94 #define SD_DISCARD_ARG 0x00000001 95 96 #endif /* LINUX_MMC_SD_H */ 97