1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Header file for UHS-II packets, Host Controller registers and I/O
6 * Copyright (C) 2014 Intel Corp, All Rights Reserved.
8 #ifndef LINUX_MMC_UHS2_H
9 #define LINUX_MMC_UHS2_H
11 /* LINK Layer definition */
14 * Refer to UHS-II Addendum Version 1.02 Figure 5-2, the format of CCMD Header is described below:
15 * bit [3:0] : DID(Destination ID = Node ID of UHS2 card)
16 * bit [6:4] : TYP(Packet Type)
17 * 000b: CCMD(Control command packet)
18 * 001b: DCMD(Data command packet)
19 * 010b: RES(Response packet)
20 * 011b: DATA(Data payload packet)
21 * 111b: MSG(Message packet)
23 * bit [7] : NP(Native Packet)
24 * bit [10:8] : TID(Transaction ID)
26 * bit [15:12]: SID(Source ID 0: Node ID of Host)
28 * Broadcast CCMD issued by Host is represented as DID=SID=0.
32 * Refer to UHS-II Addendum Version 1.02 Figure 6-5, the format of CCMD Argument is described below:
33 * bit [3:0] : MSB of IOADR
34 * bit [5:4] : PLEN(Payload Length)
40 * bit [7] : R/W(Read/Write)
41 * 0: Control read command
42 * 1: Control write command
43 * bit [15:8] : LSB of IOADR
45 * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD.
46 * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last.
48 #define UHS2_NATIVE_PACKET_POS 7
49 #define UHS2_NATIVE_PACKET (1 << UHS2_NATIVE_PACKET_POS)
51 #define UHS2_PACKET_TYPE_POS 4
52 #define UHS2_PACKET_TYPE_CCMD (0 << UHS2_PACKET_TYPE_POS)
53 #define UHS2_PACKET_TYPE_DCMD (1 << UHS2_PACKET_TYPE_POS)
54 #define UHS2_PACKET_TYPE_RES (2 << UHS2_PACKET_TYPE_POS)
55 #define UHS2_PACKET_TYPE_DATA (3 << UHS2_PACKET_TYPE_POS)
56 #define UHS2_PACKET_TYPE_MSG (7 << UHS2_PACKET_TYPE_POS)
58 #define UHS2_DEST_ID_MASK 0x0F
59 #define UHS2_DEST_ID 0x1
61 #define UHS2_SRC_ID_POS 12
62 #define UHS2_SRC_ID_MASK 0xF000
64 #define UHS2_TRANS_ID_POS 8
65 #define UHS2_TRANS_ID_MASK 0x0700
68 #define UHS2_MSG_CTG_POS 5
69 #define UHS2_MSG_CTG_LMSG 0x00
70 #define UHS2_MSG_CTG_INT 0x60
71 #define UHS2_MSG_CTG_AMSG 0x80
73 #define UHS2_MSG_CTG_FCREQ 0x00
74 #define UHS2_MSG_CTG_FCRDY 0x01
75 #define UHS2_MSG_CTG_STAT 0x02
77 #define UHS2_MSG_CODE_POS 8
78 #define UHS2_MSG_CODE_FC_UNRECOVER_ERR 0x8
79 #define UHS2_MSG_CODE_STAT_UNRECOVER_ERR 0x8
80 #define UHS2_MSG_CODE_STAT_RECOVER_ERR 0x1
82 /* TRANS Layer definition */
85 #define UHS2_NATIVE_CMD_RW_POS 7
86 #define UHS2_NATIVE_CMD_WRITE (1 << UHS2_NATIVE_CMD_RW_POS)
87 #define UHS2_NATIVE_CMD_READ (0 << UHS2_NATIVE_CMD_RW_POS)
89 #define UHS2_NATIVE_CMD_PLEN_POS 4
90 #define UHS2_NATIVE_CMD_PLEN_4B (1 << UHS2_NATIVE_CMD_PLEN_POS)
91 #define UHS2_NATIVE_CMD_PLEN_8B (2 << UHS2_NATIVE_CMD_PLEN_POS)
92 #define UHS2_NATIVE_CMD_PLEN_16B (3 << UHS2_NATIVE_CMD_PLEN_POS)
94 #define UHS2_NATIVE_CCMD_GET_MIOADR_MASK 0xF00
95 #define UHS2_NATIVE_CCMD_MIOADR_MASK 0x0F
97 #define UHS2_NATIVE_CCMD_LIOADR_POS 8
98 #define UHS2_NATIVE_CCMD_GET_LIOADR_MASK 0x0FF
100 #define UHS2_CCMD_DEV_INIT_COMPLETE_FLAG BIT(11)
101 #define UHS2_DEV_INIT_PAYLOAD_LEN 1
102 #define UHS2_DEV_INIT_RESP_LEN 6
103 #define UHS2_DEV_ENUM_PAYLOAD_LEN 1
104 #define UHS2_DEV_ENUM_RESP_LEN 8
105 #define UHS2_CFG_WRITE_PAYLOAD_LEN 2
106 #define UHS2_CFG_WRITE_PHY_SET_RESP_LEN 4
107 #define UHS2_CFG_WRITE_GENERIC_SET_RESP_LEN 5
108 #define UHS2_GO_DORMANT_PAYLOAD_LEN 1
112 * Refer to UHS-II Addendum Version 1.02 Figure 6-8, the format of DCMD Argument is described below:
113 * bit [3:0] : Reserved
114 * bit [6:3] : TMODE(Transfer Mode)
115 * bit 3: DAM(Data Access Mode)
116 * bit 4: TLUM(TLEN Unit Mode)
117 * bit 5: LM(Length Mode)
118 * bit 6: DM(Duplex Mode)
119 * bit [7] : R/W(Read/Write)
120 * 0: Control read command
121 * 1: Control write command
122 * bit [15:8] : Reserved
124 * I/O Address specifies the address of register in UHS-II I/O space accessed by CCMD.
125 * The unit of I/O Address is 4 Bytes. It is transmitted in MSB first, LSB last.
127 #define UHS2_DCMD_DM_POS 6
128 #define UHS2_DCMD_2L_HD_MODE (1 << UHS2_DCMD_DM_POS)
129 #define UHS2_DCMD_LM_POS 5
130 #define UHS2_DCMD_LM_TLEN_EXIST (1 << UHS2_DCMD_LM_POS)
131 #define UHS2_DCMD_TLUM_POS 4
132 #define UHS2_DCMD_TLUM_BYTE_MODE (1 << UHS2_DCMD_TLUM_POS)
133 #define UHS2_NATIVE_DCMD_DAM_POS 3
134 #define UHS2_NATIVE_DCMD_DAM_IO (1 << UHS2_NATIVE_DCMD_DAM_POS)
136 #define UHS2_RES_NACK_POS 7
137 #define UHS2_RES_NACK_MASK (0x1 << UHS2_RES_NACK_POS)
139 #define UHS2_RES_ECODE_POS 4
140 #define UHS2_RES_ECODE_MASK 0x7
141 #define UHS2_RES_ECODE_COND 1
142 #define UHS2_RES_ECODE_ARG 2
143 #define UHS2_RES_ECODE_GEN 3
145 /* IOADR of device registers */
146 #define UHS2_IOADR_GENERIC_CAPS 0x00
147 #define UHS2_IOADR_PHY_CAPS 0x02
148 #define UHS2_IOADR_LINK_CAPS 0x04
149 #define UHS2_IOADR_RSV_CAPS 0x06
150 #define UHS2_IOADR_GENERIC_SETTINGS 0x08
151 #define UHS2_IOADR_PHY_SETTINGS 0x0A
152 #define UHS2_IOADR_LINK_SETTINGS 0x0C
153 #define UHS2_IOADR_PRESET 0x40
155 /* SD application packets */
156 #define UHS2_SD_CMD_INDEX_POS 8
158 #define UHS2_SD_CMD_APP_POS 14
159 #define UHS2_SD_CMD_APP (1 << UHS2_SD_CMD_APP_POS)
161 /* UHS-II Device Registers */
162 #define UHS2_DEV_CONFIG_REG 0x000
164 /* General Caps and Settings registers */
165 #define UHS2_DEV_CONFIG_GEN_CAPS (UHS2_DEV_CONFIG_REG + 0x000)
166 #define UHS2_DEV_CONFIG_N_LANES_POS 8
167 #define UHS2_DEV_CONFIG_N_LANES_MASK 0x3F
168 #define UHS2_DEV_CONFIG_2L_HD_FD 0x1
169 #define UHS2_DEV_CONFIG_2D1U_FD 0x2
170 #define UHS2_DEV_CONFIG_1D2U_FD 0x4
171 #define UHS2_DEV_CONFIG_2D2U_FD 0x8
172 #define UHS2_DEV_CONFIG_DADR_POS 14
173 #define UHS2_DEV_CONFIG_DADR_MASK 0x1
174 #define UHS2_DEV_CONFIG_APP_POS 16
175 #define UHS2_DEV_CONFIG_APP_MASK 0xFF
176 #define UHS2_DEV_CONFIG_APP_SD_MEM 0x1
178 #define UHS2_DEV_CONFIG_GEN_SET (UHS2_DEV_CONFIG_REG + 0x008)
179 #define UHS2_DEV_CONFIG_GEN_SET_N_LANES_POS 8
180 #define UHS2_DEV_CONFIG_GEN_SET_2L_FD_HD 0x0
181 #define UHS2_DEV_CONFIG_GEN_SET_2D1U_FD 0x2
182 #define UHS2_DEV_CONFIG_GEN_SET_1D2U_FD 0x3
183 #define UHS2_DEV_CONFIG_GEN_SET_2D2U_FD 0x4
184 #define UHS2_DEV_CONFIG_GEN_SET_CFG_COMPLETE BIT(31)
186 /* PHY Caps and Settings registers */
187 #define UHS2_DEV_CONFIG_PHY_CAPS (UHS2_DEV_CONFIG_REG + 0x002)
188 #define UHS2_DEV_CONFIG_PHY_MINOR_MASK 0xF
189 #define UHS2_DEV_CONFIG_PHY_MAJOR_POS 4
190 #define UHS2_DEV_CONFIG_PHY_MAJOR_MASK 0x3
191 #define UHS2_DEV_CONFIG_CAN_HIBER_POS 15
192 #define UHS2_DEV_CONFIG_CAN_HIBER_MASK 0x1
193 #define UHS2_DEV_CONFIG_PHY_CAPS1 (UHS2_DEV_CONFIG_REG + 0x003)
194 #define UHS2_DEV_CONFIG_N_LSS_SYN_MASK 0xF
195 #define UHS2_DEV_CONFIG_N_LSS_DIR_POS 4
196 #define UHS2_DEV_CONFIG_N_LSS_DIR_MASK 0xF
198 #define UHS2_DEV_CONFIG_PHY_SET (UHS2_DEV_CONFIG_REG + 0x00A)
199 #define UHS2_DEV_CONFIG_PHY_SET_SPEED_POS 6
200 #define UHS2_DEV_CONFIG_PHY_SET_SPEED_A 0x0
201 #define UHS2_DEV_CONFIG_PHY_SET_SPEED_B 0x1
203 /* LINK-TRAN Caps and Settings registers */
204 #define UHS2_DEV_CONFIG_LINK_TRAN_CAPS (UHS2_DEV_CONFIG_REG + 0x004)
205 #define UHS2_DEV_CONFIG_LT_MINOR_MASK 0xF
206 #define UHS2_DEV_CONFIG_LT_MAJOR_POS 4
207 #define UHS2_DEV_CONFIG_LT_MAJOR_MASK 0x3
208 #define UHS2_DEV_CONFIG_N_FCU_POS 8
209 #define UHS2_DEV_CONFIG_N_FCU_MASK 0xFF
210 #define UHS2_DEV_CONFIG_DEV_TYPE_POS 16
211 #define UHS2_DEV_CONFIG_DEV_TYPE_MASK 0x7
212 #define UHS2_DEV_CONFIG_MAX_BLK_LEN_POS 20
213 #define UHS2_DEV_CONFIG_MAX_BLK_LEN_MASK 0xFFF
214 #define UHS2_DEV_CONFIG_LINK_TRAN_CAPS1 (UHS2_DEV_CONFIG_REG + 0x005)
215 #define UHS2_DEV_CONFIG_N_DATA_GAP_MASK 0xFF
217 #define UHS2_DEV_CONFIG_LINK_TRAN_SET (UHS2_DEV_CONFIG_REG + 0x00C)
218 #define UHS2_DEV_CONFIG_LT_SET_MAX_BLK_LEN 0x200
219 #define UHS2_DEV_CONFIG_LT_SET_MAX_RETRY_POS 16
221 /* Preset register */
222 #define UHS2_DEV_CONFIG_PRESET (UHS2_DEV_CONFIG_REG + 0x040)
224 #define UHS2_DEV_INT_REG 0x100
226 #define UHS2_DEV_STATUS_REG 0x180
228 #define UHS2_DEV_CMD_REG 0x200
229 #define UHS2_DEV_CMD_FULL_RESET (UHS2_DEV_CMD_REG + 0x000)
230 #define UHS2_DEV_CMD_GO_DORMANT_STATE (UHS2_DEV_CMD_REG + 0x001)
231 #define UHS2_DEV_CMD_DORMANT_HIBER BIT(7)
232 #define UHS2_DEV_CMD_DEVICE_INIT (UHS2_DEV_CMD_REG + 0x002)
233 #define UHS2_DEV_INIT_COMPLETE_FLAG BIT(11)
234 #define UHS2_DEV_CMD_ENUMERATE (UHS2_DEV_CMD_REG + 0x003)
235 #define UHS2_DEV_CMD_TRANS_ABORT (UHS2_DEV_CMD_REG + 0x004)
237 #define UHS2_RCLK_MAX 52000000
238 #define UHS2_RCLK_MIN 26000000
240 #endif /* LINUX_MMC_UHS2_H */