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 2 */ 19 #define SD_ADDR_EXT 22 /* ac [5:0] R1 */ 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 /* class 11 */ 36 #define SD_READ_EXTR_SINGLE 48 /* adtc [31:0] R1 */ 37 #define SD_WRITE_EXTR_SINGLE 49 /* adtc [31:0] R1 */ 38 39 /* OCR bit definitions */ 40 #define SD_OCR_S18R (1 << 24) /* 1.8V switching request */ 41 #define SD_ROCR_S18A SD_OCR_S18R /* 1.8V switching accepted by card */ 42 #define SD_OCR_2T (1 << 27) /* HO2T/CO2T - SDUC support */ 43 #define SD_OCR_XPC (1 << 28) /* SDXC power control */ 44 #define SD_OCR_CCS (1 << 30) /* Card Capacity Status */ 45 46 /* 47 * SD_SWITCH argument format: 48 * 49 * [31] Check (0) or switch (1) 50 * [30:24] Reserved (0) 51 * [23:20] Function group 6 52 * [19:16] Function group 5 53 * [15:12] Function group 4 54 * [11:8] Function group 3 55 * [7:4] Function group 2 56 * [3:0] Function group 1 57 */ 58 59 /* 60 * SD_SEND_IF_COND argument format: 61 * 62 * [31:12] Reserved (0) 63 * [11:8] Host Voltage Supply Flags 64 * [7:0] Check Pattern (0xAA) 65 */ 66 67 /* 68 * SCR field definitions 69 */ 70 71 #define SCR_SPEC_VER_0 0 /* Implements system specification 1.0 - 1.01 */ 72 #define SCR_SPEC_VER_1 1 /* Implements system specification 1.10 */ 73 #define SCR_SPEC_VER_2 2 /* Implements system specification 2.00-3.0X */ 74 75 /* 76 * SD bus widths 77 */ 78 #define SD_BUS_WIDTH_1 0 79 #define SD_BUS_WIDTH_4 2 80 81 /* 82 * SD_SWITCH mode 83 */ 84 #define SD_SWITCH_CHECK 0 85 #define SD_SWITCH_SET 1 86 87 /* 88 * SD_SWITCH function groups 89 */ 90 #define SD_SWITCH_GRP_ACCESS 0 91 92 /* 93 * SD_SWITCH access modes 94 */ 95 #define SD_SWITCH_ACCESS_DEF 0 96 #define SD_SWITCH_ACCESS_HS 1 97 98 /* 99 * Erase/discard 100 */ 101 #define SD_ERASE_ARG 0x00000000 102 #define SD_DISCARD_ARG 0x00000001 103 104 #endif /* LINUX_MMC_SD_H */ 105