1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
2 | /* |
3 | * include/linux/mmc/sdio.h |
4 | * |
5 | * Copyright 2006-2007 Pierre Ossman |
6 | */ |
7 | |
8 | #ifndef LINUX_MMC_SDIO_H |
9 | #define LINUX_MMC_SDIO_H |
10 | |
11 | /* SDIO commands type argument response */ |
12 | #define SD_IO_SEND_OP_COND 5 /* bcr [23:0] OCR R4 */ |
13 | #define SD_IO_RW_DIRECT 52 /* ac [31:0] See below R5 */ |
14 | #define SD_IO_RW_EXTENDED 53 /* adtc [31:0] See below R5 */ |
15 | |
16 | /* |
17 | * SD_IO_RW_DIRECT argument format: |
18 | * |
19 | * [31] R/W flag |
20 | * [30:28] Function number |
21 | * [27] RAW flag |
22 | * [25:9] Register address |
23 | * [7:0] Data |
24 | */ |
25 | |
26 | /* |
27 | * SD_IO_RW_EXTENDED argument format: |
28 | * |
29 | * [31] R/W flag |
30 | * [30:28] Function number |
31 | * [27] Block mode |
32 | * [26] Increment address |
33 | * [25:9] Register address |
34 | * [8:0] Byte/block count |
35 | */ |
36 | |
37 | #define R4_18V_PRESENT (1<<24) |
38 | #define R4_MEMORY_PRESENT (1 << 27) |
39 | |
40 | /* |
41 | SDIO status in R5 |
42 | Type |
43 | e : error bit |
44 | s : status bit |
45 | r : detected and set for the actual command response |
46 | x : detected and set during command execution. the host must poll |
47 | the card by sending status command in order to read these bits. |
48 | Clear condition |
49 | a : according to the card state |
50 | b : always related to the previous command. Reception of |
51 | a valid command will clear it (with a delay of one command) |
52 | c : clear by read |
53 | */ |
54 | |
55 | #define R5_COM_CRC_ERROR (1 << 15) /* er, b */ |
56 | #define R5_ILLEGAL_COMMAND (1 << 14) /* er, b */ |
57 | #define R5_ERROR (1 << 11) /* erx, c */ |
58 | #define R5_FUNCTION_NUMBER (1 << 9) /* er, c */ |
59 | #define R5_OUT_OF_RANGE (1 << 8) /* er, c */ |
60 | #define R5_STATUS(x) (x & 0xCB00) |
61 | #define R5_IO_CURRENT_STATE(x) ((x & 0x3000) >> 12) /* s, b */ |
62 | |
63 | /* |
64 | * Card Common Control Registers (CCCR) |
65 | */ |
66 | |
67 | #define SDIO_CCCR_CCCR 0x00 |
68 | |
69 | #define SDIO_CCCR_REV_1_00 0 /* CCCR/FBR Version 1.00 */ |
70 | #define SDIO_CCCR_REV_1_10 1 /* CCCR/FBR Version 1.10 */ |
71 | #define SDIO_CCCR_REV_1_20 2 /* CCCR/FBR Version 1.20 */ |
72 | #define SDIO_CCCR_REV_3_00 3 /* CCCR/FBR Version 3.00 */ |
73 | |
74 | #define SDIO_SDIO_REV_1_00 0 /* SDIO Spec Version 1.00 */ |
75 | #define SDIO_SDIO_REV_1_10 1 /* SDIO Spec Version 1.10 */ |
76 | #define SDIO_SDIO_REV_1_20 2 /* SDIO Spec Version 1.20 */ |
77 | #define SDIO_SDIO_REV_2_00 3 /* SDIO Spec Version 2.00 */ |
78 | #define SDIO_SDIO_REV_3_00 4 /* SDIO Spec Version 3.00 */ |
79 | |
80 | #define SDIO_CCCR_SD 0x01 |
81 | |
82 | #define SDIO_SD_REV_1_01 0 /* SD Physical Spec Version 1.01 */ |
83 | #define SDIO_SD_REV_1_10 1 /* SD Physical Spec Version 1.10 */ |
84 | #define SDIO_SD_REV_2_00 2 /* SD Physical Spec Version 2.00 */ |
85 | #define SDIO_SD_REV_3_00 3 /* SD Physical Spec Version 3.00 */ |
86 | |
87 | #define SDIO_CCCR_IOEx 0x02 |
88 | #define SDIO_CCCR_IORx 0x03 |
89 | |
90 | #define SDIO_CCCR_IENx 0x04 /* Function/Master Interrupt Enable */ |
91 | #define SDIO_CCCR_INTx 0x05 /* Function Interrupt Pending */ |
92 | |
93 | #define SDIO_CCCR_ABORT 0x06 /* function abort/card reset */ |
94 | |
95 | #define SDIO_CCCR_IF 0x07 /* bus interface controls */ |
96 | |
97 | #define SDIO_BUS_WIDTH_MASK 0x03 /* data bus width setting */ |
98 | #define SDIO_BUS_WIDTH_1BIT 0x00 |
99 | #define SDIO_BUS_WIDTH_RESERVED 0x01 |
100 | #define SDIO_BUS_WIDTH_4BIT 0x02 |
101 | #define SDIO_BUS_ECSI 0x20 /* Enable continuous SPI interrupt */ |
102 | #define SDIO_BUS_SCSI 0x40 /* Support continuous SPI interrupt */ |
103 | |
104 | #define SDIO_BUS_ASYNC_INT 0x20 |
105 | |
106 | #define SDIO_BUS_CD_DISABLE 0x80 /* disable pull-up on DAT3 (pin 1) */ |
107 | |
108 | #define SDIO_CCCR_CAPS 0x08 |
109 | |
110 | #define SDIO_CCCR_CAP_SDC 0x01 /* can do CMD52 while data transfer */ |
111 | #define SDIO_CCCR_CAP_SMB 0x02 /* can do multi-block xfers (CMD53) */ |
112 | #define SDIO_CCCR_CAP_SRW 0x04 /* supports read-wait protocol */ |
113 | #define SDIO_CCCR_CAP_SBS 0x08 /* supports suspend/resume */ |
114 | #define SDIO_CCCR_CAP_S4MI 0x10 /* interrupt during 4-bit CMD53 */ |
115 | #define SDIO_CCCR_CAP_E4MI 0x20 /* enable ints during 4-bit CMD53 */ |
116 | #define SDIO_CCCR_CAP_LSC 0x40 /* low speed card */ |
117 | #define SDIO_CCCR_CAP_4BLS 0x80 /* 4 bit low speed card */ |
118 | |
119 | #define SDIO_CCCR_CIS 0x09 /* common CIS pointer (3 bytes) */ |
120 | |
121 | /* Following 4 regs are valid only if SBS is set */ |
122 | #define SDIO_CCCR_SUSPEND 0x0c |
123 | #define SDIO_CCCR_SELx 0x0d |
124 | #define SDIO_CCCR_EXECx 0x0e |
125 | #define SDIO_CCCR_READYx 0x0f |
126 | |
127 | #define SDIO_CCCR_BLKSIZE 0x10 |
128 | |
129 | #define SDIO_CCCR_POWER 0x12 |
130 | |
131 | #define SDIO_POWER_SMPC 0x01 /* Supports Master Power Control */ |
132 | #define SDIO_POWER_EMPC 0x02 /* Enable Master Power Control */ |
133 | |
134 | #define SDIO_CCCR_SPEED 0x13 |
135 | |
136 | #define SDIO_SPEED_SHS 0x01 /* Supports High-Speed mode */ |
137 | #define SDIO_SPEED_BSS_SHIFT 1 |
138 | #define SDIO_SPEED_BSS_MASK (7<<SDIO_SPEED_BSS_SHIFT) |
139 | #define SDIO_SPEED_SDR12 (0<<SDIO_SPEED_BSS_SHIFT) |
140 | #define SDIO_SPEED_SDR25 (1<<SDIO_SPEED_BSS_SHIFT) |
141 | #define SDIO_SPEED_SDR50 (2<<SDIO_SPEED_BSS_SHIFT) |
142 | #define SDIO_SPEED_SDR104 (3<<SDIO_SPEED_BSS_SHIFT) |
143 | #define SDIO_SPEED_DDR50 (4<<SDIO_SPEED_BSS_SHIFT) |
144 | #define SDIO_SPEED_EHS SDIO_SPEED_SDR25 /* Enable High-Speed */ |
145 | |
146 | #define SDIO_CCCR_UHS 0x14 |
147 | #define SDIO_UHS_SDR50 0x01 |
148 | #define SDIO_UHS_SDR104 0x02 |
149 | #define SDIO_UHS_DDR50 0x04 |
150 | |
151 | #define SDIO_CCCR_DRIVE_STRENGTH 0x15 |
152 | #define SDIO_SDTx_MASK 0x07 |
153 | #define SDIO_DRIVE_SDTA (1<<0) |
154 | #define SDIO_DRIVE_SDTC (1<<1) |
155 | #define SDIO_DRIVE_SDTD (1<<2) |
156 | #define SDIO_DRIVE_DTSx_MASK 0x03 |
157 | #define SDIO_DRIVE_DTSx_SHIFT 4 |
158 | #define SDIO_DTSx_SET_TYPE_B (0 << SDIO_DRIVE_DTSx_SHIFT) |
159 | #define SDIO_DTSx_SET_TYPE_A (1 << SDIO_DRIVE_DTSx_SHIFT) |
160 | #define SDIO_DTSx_SET_TYPE_C (2 << SDIO_DRIVE_DTSx_SHIFT) |
161 | #define SDIO_DTSx_SET_TYPE_D (3 << SDIO_DRIVE_DTSx_SHIFT) |
162 | |
163 | #define SDIO_CCCR_INTERRUPT_EXT 0x16 |
164 | #define SDIO_INTERRUPT_EXT_SAI (1 << 0) |
165 | #define SDIO_INTERRUPT_EXT_EAI (1 << 1) |
166 | |
167 | /* |
168 | * Function Basic Registers (FBR) |
169 | */ |
170 | |
171 | #define SDIO_FBR_BASE(f) ((f) * 0x100) /* base of function f's FBRs */ |
172 | |
173 | #define SDIO_FBR_STD_IF 0x00 |
174 | |
175 | #define SDIO_FBR_SUPPORTS_CSA 0x40 /* supports Code Storage Area */ |
176 | #define SDIO_FBR_ENABLE_CSA 0x80 /* enable Code Storage Area */ |
177 | |
178 | #define SDIO_FBR_STD_IF_EXT 0x01 |
179 | |
180 | #define SDIO_FBR_POWER 0x02 |
181 | |
182 | #define SDIO_FBR_POWER_SPS 0x01 /* Supports Power Selection */ |
183 | #define SDIO_FBR_POWER_EPS 0x02 /* Enable (low) Power Selection */ |
184 | |
185 | #define SDIO_FBR_CIS 0x09 /* CIS pointer (3 bytes) */ |
186 | |
187 | |
188 | #define SDIO_FBR_CSA 0x0C /* CSA pointer (3 bytes) */ |
189 | |
190 | #define SDIO_FBR_CSA_DATA 0x0F |
191 | |
192 | #define SDIO_FBR_BLKSIZE 0x10 /* block size (2 bytes) */ |
193 | |
194 | #endif /* LINUX_MMC_SDIO_H */ |
195 | |