Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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 */