1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Thunderbolt driver - Port/Switch config area registers 4 * 5 * Every thunderbolt device consists (logically) of a switch with multiple 6 * ports. Every port contains up to four config regions (HOPS, PORT, SWITCH, 7 * COUNTERS) which are used to configure the device. 8 * 9 * Copyright (c) 2014 Andreas Noever <andreas.noever@gmail.com> 10 * Copyright (C) 2018, Intel Corporation 11 */ 12 13 #ifndef _TB_REGS 14 #define _TB_REGS 15 16 #include <linux/types.h> 17 18 19 #define TB_ROUTE_SHIFT 8 /* number of bits in a port entry of a route */ 20 21 22 /* 23 * TODO: should be 63? But we do not know how to receive frames larger than 256 24 * bytes at the frame level. (header + checksum = 16, 60*4 = 240) 25 */ 26 #define TB_MAX_CONFIG_RW_LENGTH 60 27 28 enum tb_switch_cap { 29 TB_SWITCH_CAP_TMU = 0x03, 30 TB_SWITCH_CAP_VSE = 0x05, 31 }; 32 33 enum tb_switch_vse_cap { 34 TB_VSE_CAP_PLUG_EVENTS = 0x01, /* also EEPROM */ 35 TB_VSE_CAP_TIME2 = 0x03, 36 TB_VSE_CAP_CP_LP = 0x04, 37 TB_VSE_CAP_LINK_CONTROLLER = 0x06, /* also IECS */ 38 }; 39 40 enum tb_port_cap { 41 TB_PORT_CAP_PHY = 0x01, 42 TB_PORT_CAP_POWER = 0x02, 43 TB_PORT_CAP_TIME1 = 0x03, 44 TB_PORT_CAP_ADAP = 0x04, 45 TB_PORT_CAP_VSE = 0x05, 46 TB_PORT_CAP_USB4 = 0x06, 47 }; 48 49 enum tb_port_state { 50 TB_PORT_DISABLED = 0, /* tb_cap_phy.disable == 1 */ 51 TB_PORT_CONNECTING = 1, /* retry */ 52 TB_PORT_UP = 2, 53 TB_PORT_TX_CL0S = 3, 54 TB_PORT_RX_CL0S = 4, 55 TB_PORT_CL1 = 5, 56 TB_PORT_CL2 = 6, 57 TB_PORT_UNPLUGGED = 7, 58 }; 59 60 /* capability headers */ 61 62 struct tb_cap_basic { 63 u8 next; 64 /* enum tb_cap cap:8; prevent "narrower than values of its type" */ 65 u8 cap; /* if cap == 0x05 then we have a extended capability */ 66 } __packed; 67 68 /** 69 * struct tb_cap_extended_short - Switch extended short capability 70 * @next: Pointer to the next capability. If @next and @length are zero 71 * then we have a long cap. 72 * @cap: Base capability ID (see &enum tb_switch_cap) 73 * @vsec_id: Vendor specific capability ID (see &enum switch_vse_cap) 74 * @length: Length of this capability 75 */ 76 struct tb_cap_extended_short { 77 u8 next; 78 u8 cap; 79 u8 vsec_id; 80 u8 length; 81 } __packed; 82 83 /** 84 * struct tb_cap_extended_long - Switch extended long capability 85 * @zero1: This field should be zero 86 * @cap: Base capability ID (see &enum tb_switch_cap) 87 * @vsec_id: Vendor specific capability ID (see &enum switch_vse_cap) 88 * @zero2: This field should be zero 89 * @next: Pointer to the next capability 90 * @length: Length of this capability 91 */ 92 struct tb_cap_extended_long { 93 u8 zero1; 94 u8 cap; 95 u8 vsec_id; 96 u8 zero2; 97 u16 next; 98 u16 length; 99 } __packed; 100 101 /** 102 * struct tb_cap_any - Structure capable of hold every capability 103 * @basic: Basic capability 104 * @extended_short: Vendor specific capability 105 * @extended_long: Vendor specific extended capability 106 */ 107 struct tb_cap_any { 108 union { 109 struct tb_cap_basic basic; 110 struct tb_cap_extended_short extended_short; 111 struct tb_cap_extended_long extended_long; 112 }; 113 } __packed; 114 115 /* capabilities */ 116 117 struct tb_cap_link_controller { 118 struct tb_cap_extended_long cap_header; 119 u32 count:4; /* number of link controllers */ 120 u32 unknown1:4; 121 u32 base_offset:8; /* 122 * offset (into this capability) of the configuration 123 * area of the first link controller 124 */ 125 u32 length:12; /* link controller configuration area length */ 126 u32 unknown2:4; /* TODO check that length is correct */ 127 } __packed; 128 129 struct tb_cap_phy { 130 struct tb_cap_basic cap_header; 131 u32 unknown1:16; 132 u32 unknown2:14; 133 bool disable:1; 134 u32 unknown3:11; 135 enum tb_port_state state:4; 136 u32 unknown4:2; 137 } __packed; 138 139 struct tb_eeprom_ctl { 140 bool fl_sk:1; /* send pulse to transfer one bit */ 141 bool fl_cs:1; /* set to 0 before access */ 142 bool fl_di:1; /* to eeprom */ 143 bool fl_do:1; /* from eeprom */ 144 bool bit_banging_enable:1; /* set to 1 before access */ 145 bool not_present:1; /* should be 0 */ 146 bool unknown1:1; 147 bool present:1; /* should be 1 */ 148 u32 unknown2:24; 149 } __packed; 150 151 struct tb_cap_plug_events { 152 struct tb_cap_extended_short cap_header; 153 u32 __unknown1:2; /* VSC_CS_1 */ 154 u32 plug_events:5; /* VSC_CS_1 */ 155 u32 __unknown2:25; /* VSC_CS_1 */ 156 u32 vsc_cs_2; 157 u32 vsc_cs_3; 158 struct tb_eeprom_ctl eeprom_ctl; 159 u32 __unknown5[7]; /* VSC_CS_5 -> VSC_CS_11 */ 160 u32 drom_offset; /* VSC_CS_12: 32 bit register, but eeprom addresses are 16 bit */ 161 } __packed; 162 163 /* device headers */ 164 165 /* Present on port 0 in TB_CFG_SWITCH at address zero. */ 166 struct tb_regs_switch_header { 167 /* DWORD 0 */ 168 u16 vendor_id; 169 u16 device_id; 170 /* DWORD 1 */ 171 u32 first_cap_offset:8; 172 u32 upstream_port_number:6; 173 u32 max_port_number:6; 174 u32 depth:3; 175 u32 __unknown1:1; 176 u32 revision:8; 177 /* DWORD 2 */ 178 u32 route_lo; 179 /* DWORD 3 */ 180 u32 route_hi:31; 181 bool enabled:1; 182 /* DWORD 4 */ 183 u32 plug_events_delay:8; /* 184 * RW, pause between plug events in 185 * milliseconds. Writing 0x00 is interpreted 186 * as 255ms. 187 */ 188 u32 cmuv:8; 189 u32 __unknown4:8; 190 u32 thunderbolt_version:8; 191 } __packed; 192 193 /* Used with the router thunderbolt_version */ 194 #define USB4_VERSION_MAJOR_MASK GENMASK(7, 5) 195 196 #define ROUTER_CS_1 0x01 197 #define ROUTER_CS_4 0x04 198 /* Used with the router cmuv field */ 199 #define ROUTER_CS_4_CMUV_V1 0x10 200 #define ROUTER_CS_4_CMUV_V2 0x20 201 #define ROUTER_CS_5 0x05 202 #define ROUTER_CS_5_SLP BIT(0) 203 #define ROUTER_CS_5_WOP BIT(1) 204 #define ROUTER_CS_5_WOU BIT(2) 205 #define ROUTER_CS_5_WOD BIT(3) 206 #define ROUTER_CS_5_C3S BIT(23) 207 #define ROUTER_CS_5_PTO BIT(24) 208 #define ROUTER_CS_5_UTO BIT(25) 209 #define ROUTER_CS_5_HCO BIT(26) 210 #define ROUTER_CS_5_CV BIT(31) 211 #define ROUTER_CS_6 0x06 212 #define ROUTER_CS_6_SLPR BIT(0) 213 #define ROUTER_CS_6_TNS BIT(1) 214 #define ROUTER_CS_6_WOPS BIT(2) 215 #define ROUTER_CS_6_WOUS BIT(3) 216 #define ROUTER_CS_6_HCI BIT(18) 217 #define ROUTER_CS_6_CR BIT(25) 218 #define ROUTER_CS_7 0x07 219 #define ROUTER_CS_9 0x09 220 #define ROUTER_CS_25 0x19 221 #define ROUTER_CS_26 0x1a 222 #define ROUTER_CS_26_OPCODE_MASK GENMASK(15, 0) 223 #define ROUTER_CS_26_STATUS_MASK GENMASK(29, 24) 224 #define ROUTER_CS_26_STATUS_SHIFT 24 225 #define ROUTER_CS_26_ONS BIT(30) 226 #define ROUTER_CS_26_OV BIT(31) 227 228 /* USB4 router operations opcodes */ 229 enum usb4_switch_op { 230 USB4_SWITCH_OP_QUERY_DP_RESOURCE = 0x10, 231 USB4_SWITCH_OP_ALLOC_DP_RESOURCE = 0x11, 232 USB4_SWITCH_OP_DEALLOC_DP_RESOURCE = 0x12, 233 USB4_SWITCH_OP_NVM_WRITE = 0x20, 234 USB4_SWITCH_OP_NVM_AUTH = 0x21, 235 USB4_SWITCH_OP_NVM_READ = 0x22, 236 USB4_SWITCH_OP_NVM_SET_OFFSET = 0x23, 237 USB4_SWITCH_OP_DROM_READ = 0x24, 238 USB4_SWITCH_OP_NVM_SECTOR_SIZE = 0x25, 239 USB4_SWITCH_OP_BUFFER_ALLOC = 0x33, 240 }; 241 242 /* Router TMU configuration */ 243 #define TMU_RTR_CS_0 0x00 244 #define TMU_RTR_CS_0_FREQ_WIND_MASK GENMASK(26, 16) 245 #define TMU_RTR_CS_0_TD BIT(27) 246 #define TMU_RTR_CS_0_UCAP BIT(30) 247 #define TMU_RTR_CS_1 0x01 248 #define TMU_RTR_CS_1_LOCAL_TIME_NS_MASK GENMASK(31, 16) 249 #define TMU_RTR_CS_1_LOCAL_TIME_NS_SHIFT 16 250 #define TMU_RTR_CS_2 0x02 251 #define TMU_RTR_CS_3 0x03 252 #define TMU_RTR_CS_3_LOCAL_TIME_NS_MASK GENMASK(15, 0) 253 #define TMU_RTR_CS_3_TS_PACKET_INTERVAL_MASK GENMASK(31, 16) 254 #define TMU_RTR_CS_3_TS_PACKET_INTERVAL_SHIFT 16 255 #define TMU_RTR_CS_15 0x0f 256 #define TMU_RTR_CS_15_FREQ_AVG_MASK GENMASK(5, 0) 257 #define TMU_RTR_CS_15_DELAY_AVG_MASK GENMASK(11, 6) 258 #define TMU_RTR_CS_15_OFFSET_AVG_MASK GENMASK(17, 12) 259 #define TMU_RTR_CS_15_ERROR_AVG_MASK GENMASK(23, 18) 260 #define TMU_RTR_CS_18 0x12 261 #define TMU_RTR_CS_18_DELTA_AVG_CONST_MASK GENMASK(23, 16) 262 #define TMU_RTR_CS_22 0x16 263 #define TMU_RTR_CS_24 0x18 264 #define TMU_RTR_CS_25 0x19 265 266 enum tb_port_type { 267 TB_TYPE_INACTIVE = 0x000000, 268 TB_TYPE_PORT = 0x000001, 269 TB_TYPE_NHI = 0x000002, 270 /* TB_TYPE_ETHERNET = 0x020000, lower order bits are not known */ 271 /* TB_TYPE_SATA = 0x080000, lower order bits are not known */ 272 TB_TYPE_DP_HDMI_IN = 0x0e0101, 273 TB_TYPE_DP_HDMI_OUT = 0x0e0102, 274 TB_TYPE_PCIE_DOWN = 0x100101, 275 TB_TYPE_PCIE_UP = 0x100102, 276 TB_TYPE_USB3_DOWN = 0x200101, 277 TB_TYPE_USB3_UP = 0x200102, 278 }; 279 280 /* Present on every port in TB_CF_PORT at address zero. */ 281 struct tb_regs_port_header { 282 /* DWORD 0 */ 283 u16 vendor_id; 284 u16 device_id; 285 /* DWORD 1 */ 286 u32 first_cap_offset:8; 287 u32 max_counters:11; 288 u32 counters_support:1; 289 u32 __unknown1:4; 290 u32 revision:8; 291 /* DWORD 2 */ 292 enum tb_port_type type:24; 293 u32 thunderbolt_version:8; 294 /* DWORD 3 */ 295 u32 __unknown2:20; 296 u32 port_number:6; 297 u32 __unknown3:6; 298 /* DWORD 4 */ 299 u32 nfc_credits; 300 /* DWORD 5 */ 301 u32 max_in_hop_id:11; 302 u32 max_out_hop_id:11; 303 u32 __unknown4:10; 304 /* DWORD 6 */ 305 u32 __unknown5; 306 /* DWORD 7 */ 307 u32 __unknown6; 308 309 } __packed; 310 311 /* Basic adapter configuration registers */ 312 #define ADP_CS_4 0x04 313 #define ADP_CS_4_NFC_BUFFERS_MASK GENMASK(9, 0) 314 #define ADP_CS_4_TOTAL_BUFFERS_MASK GENMASK(29, 20) 315 #define ADP_CS_4_TOTAL_BUFFERS_SHIFT 20 316 #define ADP_CS_4_LCK BIT(31) 317 #define ADP_CS_5 0x05 318 #define ADP_CS_5_LCA_MASK GENMASK(28, 22) 319 #define ADP_CS_5_LCA_SHIFT 22 320 #define ADP_CS_5_DHP BIT(31) 321 322 /* TMU adapter registers */ 323 #define TMU_ADP_CS_3 0x03 324 #define TMU_ADP_CS_3_UDM BIT(29) 325 #define TMU_ADP_CS_6 0x06 326 #define TMU_ADP_CS_6_DTS BIT(1) 327 #define TMU_ADP_CS_8 0x08 328 #define TMU_ADP_CS_8_REPL_TIMEOUT_MASK GENMASK(14, 0) 329 #define TMU_ADP_CS_8_EUDM BIT(15) 330 #define TMU_ADP_CS_8_REPL_THRESHOLD_MASK GENMASK(25, 16) 331 #define TMU_ADP_CS_9 0x09 332 #define TMU_ADP_CS_9_REPL_N_MASK GENMASK(7, 0) 333 #define TMU_ADP_CS_9_DIRSWITCH_N_MASK GENMASK(15, 8) 334 #define TMU_ADP_CS_9_ADP_TS_INTERVAL_MASK GENMASK(31, 16) 335 336 /* Lane adapter registers */ 337 #define LANE_ADP_CS_0 0x00 338 #define LANE_ADP_CS_0_SUPPORTED_SPEED_MASK GENMASK(19, 16) 339 #define LANE_ADP_CS_0_SUPPORTED_SPEED_SHIFT 16 340 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_MASK GENMASK(25, 20) 341 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_SHIFT 20 342 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_DUAL 0x2 343 #define LANE_ADP_CS_0_CL0S_SUPPORT BIT(26) 344 #define LANE_ADP_CS_0_CL1_SUPPORT BIT(27) 345 #define LANE_ADP_CS_0_CL2_SUPPORT BIT(28) 346 #define LANE_ADP_CS_1 0x01 347 #define LANE_ADP_CS_1_TARGET_SPEED_MASK GENMASK(3, 0) 348 #define LANE_ADP_CS_1_TARGET_SPEED_GEN3 0xc 349 #define LANE_ADP_CS_1_TARGET_WIDTH_MASK GENMASK(9, 4) 350 #define LANE_ADP_CS_1_TARGET_WIDTH_SHIFT 4 351 #define LANE_ADP_CS_1_TARGET_WIDTH_SINGLE 0x1 352 #define LANE_ADP_CS_1_TARGET_WIDTH_DUAL 0x3 353 #define LANE_ADP_CS_1_CL0S_ENABLE BIT(10) 354 #define LANE_ADP_CS_1_CL1_ENABLE BIT(11) 355 #define LANE_ADP_CS_1_CL2_ENABLE BIT(12) 356 #define LANE_ADP_CS_1_LD BIT(14) 357 #define LANE_ADP_CS_1_LB BIT(15) 358 #define LANE_ADP_CS_1_CURRENT_SPEED_MASK GENMASK(19, 16) 359 #define LANE_ADP_CS_1_CURRENT_SPEED_SHIFT 16 360 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN2 0x8 361 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN3 0x4 362 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN4 0x2 363 #define LANE_ADP_CS_1_CURRENT_WIDTH_MASK GENMASK(25, 20) 364 #define LANE_ADP_CS_1_CURRENT_WIDTH_SHIFT 20 365 #define LANE_ADP_CS_1_PMS BIT(30) 366 367 /* USB4 port registers */ 368 #define PORT_CS_1 0x01 369 #define PORT_CS_1_LENGTH_SHIFT 8 370 #define PORT_CS_1_TARGET_MASK GENMASK(18, 16) 371 #define PORT_CS_1_TARGET_SHIFT 16 372 #define PORT_CS_1_RETIMER_INDEX_SHIFT 20 373 #define PORT_CS_1_WNR_WRITE BIT(24) 374 #define PORT_CS_1_NR BIT(25) 375 #define PORT_CS_1_RC BIT(26) 376 #define PORT_CS_1_PND BIT(31) 377 #define PORT_CS_2 0x02 378 #define PORT_CS_18 0x12 379 #define PORT_CS_18_BE BIT(8) 380 #define PORT_CS_18_TCM BIT(9) 381 #define PORT_CS_18_CPS BIT(10) 382 #define PORT_CS_18_WOCS BIT(16) 383 #define PORT_CS_18_WODS BIT(17) 384 #define PORT_CS_18_WOU4S BIT(18) 385 #define PORT_CS_19 0x13 386 #define PORT_CS_19_PC BIT(3) 387 #define PORT_CS_19_PID BIT(4) 388 #define PORT_CS_19_WOC BIT(16) 389 #define PORT_CS_19_WOD BIT(17) 390 #define PORT_CS_19_WOU4 BIT(18) 391 392 /* Display Port adapter registers */ 393 #define ADP_DP_CS_0 0x00 394 #define ADP_DP_CS_0_VIDEO_HOPID_MASK GENMASK(26, 16) 395 #define ADP_DP_CS_0_VIDEO_HOPID_SHIFT 16 396 #define ADP_DP_CS_0_AE BIT(30) 397 #define ADP_DP_CS_0_VE BIT(31) 398 #define ADP_DP_CS_1_AUX_TX_HOPID_MASK GENMASK(10, 0) 399 #define ADP_DP_CS_1_AUX_RX_HOPID_MASK GENMASK(21, 11) 400 #define ADP_DP_CS_1_AUX_RX_HOPID_SHIFT 11 401 #define ADP_DP_CS_2 0x02 402 #define ADP_DP_CS_2_NRD_MLC_MASK GENMASK(2, 0) 403 #define ADP_DP_CS_2_HDP BIT(6) 404 #define ADP_DP_CS_2_NRD_MLR_MASK GENMASK(9, 7) 405 #define ADP_DP_CS_2_NRD_MLR_SHIFT 7 406 #define ADP_DP_CS_2_CA BIT(10) 407 #define ADP_DP_CS_2_GR_MASK GENMASK(12, 11) 408 #define ADP_DP_CS_2_GR_SHIFT 11 409 #define ADP_DP_CS_2_GR_0_25G 0x0 410 #define ADP_DP_CS_2_GR_0_5G 0x1 411 #define ADP_DP_CS_2_GR_1G 0x2 412 #define ADP_DP_CS_2_GROUP_ID_MASK GENMASK(15, 13) 413 #define ADP_DP_CS_2_GROUP_ID_SHIFT 13 414 #define ADP_DP_CS_2_CM_ID_MASK GENMASK(19, 16) 415 #define ADP_DP_CS_2_CM_ID_SHIFT 16 416 #define ADP_DP_CS_2_CMMS BIT(20) 417 #define ADP_DP_CS_2_ESTIMATED_BW_MASK GENMASK(31, 24) 418 #define ADP_DP_CS_2_ESTIMATED_BW_SHIFT 24 419 #define ADP_DP_CS_3 0x03 420 #define ADP_DP_CS_3_HDPC BIT(9) 421 #define DP_LOCAL_CAP 0x04 422 #define DP_REMOTE_CAP 0x05 423 /* For DP IN adapter */ 424 #define DP_STATUS 0x06 425 #define DP_STATUS_ALLOCATED_BW_MASK GENMASK(31, 24) 426 #define DP_STATUS_ALLOCATED_BW_SHIFT 24 427 /* For DP OUT adapter */ 428 #define DP_STATUS_CTRL 0x06 429 #define DP_STATUS_CTRL_CMHS BIT(25) 430 #define DP_STATUS_CTRL_UF BIT(26) 431 #define DP_COMMON_CAP 0x07 432 /* Only if DP IN supports BW allocation mode */ 433 #define ADP_DP_CS_8 0x08 434 #define ADP_DP_CS_8_REQUESTED_BW_MASK GENMASK(7, 0) 435 #define ADP_DP_CS_8_DPME BIT(30) 436 #define ADP_DP_CS_8_DR BIT(31) 437 438 /* 439 * DP_COMMON_CAP offsets work also for DP_LOCAL_CAP and DP_REMOTE_CAP 440 * with exception of DPRX done. 441 */ 442 #define DP_COMMON_CAP_RATE_MASK GENMASK(11, 8) 443 #define DP_COMMON_CAP_RATE_SHIFT 8 444 #define DP_COMMON_CAP_RATE_RBR 0x0 445 #define DP_COMMON_CAP_RATE_HBR 0x1 446 #define DP_COMMON_CAP_RATE_HBR2 0x2 447 #define DP_COMMON_CAP_RATE_HBR3 0x3 448 #define DP_COMMON_CAP_LANES_MASK GENMASK(14, 12) 449 #define DP_COMMON_CAP_LANES_SHIFT 12 450 #define DP_COMMON_CAP_1_LANE 0x0 451 #define DP_COMMON_CAP_2_LANES 0x1 452 #define DP_COMMON_CAP_4_LANES 0x2 453 #define DP_COMMON_CAP_UHBR10 BIT(17) 454 #define DP_COMMON_CAP_UHBR20 BIT(18) 455 #define DP_COMMON_CAP_UHBR13_5 BIT(19) 456 #define DP_COMMON_CAP_LTTPR_NS BIT(27) 457 #define DP_COMMON_CAP_BW_MODE BIT(28) 458 #define DP_COMMON_CAP_DPRX_DONE BIT(31) 459 /* Only present if DP IN supports BW allocation mode */ 460 #define ADP_DP_CS_8 0x08 461 #define ADP_DP_CS_8_DPME BIT(30) 462 #define ADP_DP_CS_8_DR BIT(31) 463 464 /* PCIe adapter registers */ 465 #define ADP_PCIE_CS_0 0x00 466 #define ADP_PCIE_CS_0_PE BIT(31) 467 #define ADP_PCIE_CS_1 0x01 468 #define ADP_PCIE_CS_1_EE BIT(0) 469 470 /* USB adapter registers */ 471 #define ADP_USB3_CS_0 0x00 472 #define ADP_USB3_CS_0_V BIT(30) 473 #define ADP_USB3_CS_0_PE BIT(31) 474 #define ADP_USB3_CS_1 0x01 475 #define ADP_USB3_CS_1_CUBW_MASK GENMASK(11, 0) 476 #define ADP_USB3_CS_1_CDBW_MASK GENMASK(23, 12) 477 #define ADP_USB3_CS_1_CDBW_SHIFT 12 478 #define ADP_USB3_CS_1_HCA BIT(31) 479 #define ADP_USB3_CS_2 0x02 480 #define ADP_USB3_CS_2_AUBW_MASK GENMASK(11, 0) 481 #define ADP_USB3_CS_2_ADBW_MASK GENMASK(23, 12) 482 #define ADP_USB3_CS_2_ADBW_SHIFT 12 483 #define ADP_USB3_CS_2_CMR BIT(31) 484 #define ADP_USB3_CS_3 0x03 485 #define ADP_USB3_CS_3_SCALE_MASK GENMASK(5, 0) 486 #define ADP_USB3_CS_4 0x04 487 #define ADP_USB3_CS_4_ALR_MASK GENMASK(6, 0) 488 #define ADP_USB3_CS_4_ALR_20G 0x1 489 #define ADP_USB3_CS_4_ULV BIT(7) 490 #define ADP_USB3_CS_4_MSLR_MASK GENMASK(18, 12) 491 #define ADP_USB3_CS_4_MSLR_SHIFT 12 492 #define ADP_USB3_CS_4_MSLR_20G 0x1 493 494 /* Hop register from TB_CFG_HOPS. 8 byte per entry. */ 495 struct tb_regs_hop { 496 /* DWORD 0 */ 497 u32 next_hop:11; /* 498 * hop to take after sending the packet through 499 * out_port (on the incoming port of the next switch) 500 */ 501 u32 out_port:6; /* next port of the path (on the same switch) */ 502 u32 initial_credits:8; 503 u32 unknown1:6; /* set to zero */ 504 bool enable:1; 505 506 /* DWORD 1 */ 507 u32 weight:4; 508 u32 unknown2:4; /* set to zero */ 509 u32 priority:3; 510 bool drop_packages:1; 511 u32 counter:11; /* index into TB_CFG_COUNTERS on this port */ 512 bool counter_enable:1; 513 bool ingress_fc:1; 514 bool egress_fc:1; 515 bool ingress_shared_buffer:1; 516 bool egress_shared_buffer:1; 517 bool pending:1; 518 u32 unknown3:3; /* set to zero */ 519 } __packed; 520 521 /* TMU Thunderbolt 3 registers */ 522 #define TB_TIME_VSEC_3_CS_9 0x9 523 #define TB_TIME_VSEC_3_CS_9_TMU_OBJ_MASK GENMASK(17, 16) 524 #define TB_TIME_VSEC_3_CS_26 0x1a 525 #define TB_TIME_VSEC_3_CS_26_TD BIT(22) 526 527 /* 528 * Used for Titan Ridge only. Bits are part of the same register: TMU_ADP_CS_6 529 * (see above) as in USB4 spec, but these specific bits used for Titan Ridge 530 * only and reserved in USB4 spec. 531 */ 532 #define TMU_ADP_CS_6_DISABLE_TMU_OBJ_MASK GENMASK(3, 2) 533 #define TMU_ADP_CS_6_DISABLE_TMU_OBJ_CL1 BIT(2) 534 #define TMU_ADP_CS_6_DISABLE_TMU_OBJ_CL2 BIT(3) 535 536 /* Plug Events registers */ 537 #define TB_PLUG_EVENTS_USB_DISABLE BIT(2) 538 #define TB_PLUG_EVENTS_CS_1_LANE_DISABLE BIT(3) 539 #define TB_PLUG_EVENTS_CS_1_DPOUT_DISABLE BIT(4) 540 #define TB_PLUG_EVENTS_CS_1_LOW_DPIN_DISABLE BIT(5) 541 #define TB_PLUG_EVENTS_CS_1_HIGH_DPIN_DISABLE BIT(6) 542 543 #define TB_PLUG_EVENTS_PCIE_WR_DATA 0x1b 544 #define TB_PLUG_EVENTS_PCIE_CMD 0x1c 545 #define TB_PLUG_EVENTS_PCIE_CMD_DW_OFFSET_MASK GENMASK(9, 0) 546 #define TB_PLUG_EVENTS_PCIE_CMD_BR_SHIFT 10 547 #define TB_PLUG_EVENTS_PCIE_CMD_BR_MASK GENMASK(17, 10) 548 #define TB_PLUG_EVENTS_PCIE_CMD_RD_WR_MASK BIT(21) 549 #define TB_PLUG_EVENTS_PCIE_CMD_WR 0x1 550 #define TB_PLUG_EVENTS_PCIE_CMD_COMMAND_SHIFT 22 551 #define TB_PLUG_EVENTS_PCIE_CMD_COMMAND_MASK GENMASK(24, 22) 552 #define TB_PLUG_EVENTS_PCIE_CMD_COMMAND_VAL 0x2 553 #define TB_PLUG_EVENTS_PCIE_CMD_REQ_ACK_MASK BIT(30) 554 #define TB_PLUG_EVENTS_PCIE_CMD_TIMEOUT_MASK BIT(31) 555 #define TB_PLUG_EVENTS_PCIE_CMD_RD_DATA 0x1d 556 557 /* CP Low Power registers */ 558 #define TB_LOW_PWR_C1_CL1 0x1 559 #define TB_LOW_PWR_C1_CL1_OBJ_MASK GENMASK(4, 1) 560 #define TB_LOW_PWR_C1_CL2_OBJ_MASK GENMASK(4, 1) 561 #define TB_LOW_PWR_C1_PORT_A_MASK GENMASK(2, 1) 562 #define TB_LOW_PWR_C0_PORT_B_MASK GENMASK(4, 3) 563 #define TB_LOW_PWR_C3_CL1 0x3 564 565 /* Common link controller registers */ 566 #define TB_LC_DESC 0x02 567 #define TB_LC_DESC_NLC_MASK GENMASK(3, 0) 568 #define TB_LC_DESC_SIZE_SHIFT 8 569 #define TB_LC_DESC_SIZE_MASK GENMASK(15, 8) 570 #define TB_LC_DESC_PORT_SIZE_SHIFT 16 571 #define TB_LC_DESC_PORT_SIZE_MASK GENMASK(27, 16) 572 #define TB_LC_FUSE 0x03 573 #define TB_LC_SNK_ALLOCATION 0x10 574 #define TB_LC_SNK_ALLOCATION_SNK0_MASK GENMASK(3, 0) 575 #define TB_LC_SNK_ALLOCATION_SNK0_CM 0x1 576 #define TB_LC_SNK_ALLOCATION_SNK1_SHIFT 4 577 #define TB_LC_SNK_ALLOCATION_SNK1_MASK GENMASK(7, 4) 578 #define TB_LC_SNK_ALLOCATION_SNK1_CM 0x1 579 #define TB_LC_POWER 0x740 580 581 /* Link controller registers */ 582 #define TB_LC_CS_42 0x2a 583 #define TB_LC_CS_42_USB_PLUGGED BIT(31) 584 585 #define TB_LC_PORT_ATTR 0x8d 586 #define TB_LC_PORT_ATTR_BE BIT(12) 587 588 #define TB_LC_SX_CTRL 0x96 589 #define TB_LC_SX_CTRL_WOC BIT(1) 590 #define TB_LC_SX_CTRL_WOD BIT(2) 591 #define TB_LC_SX_CTRL_WODPC BIT(3) 592 #define TB_LC_SX_CTRL_WODPD BIT(4) 593 #define TB_LC_SX_CTRL_WOU4 BIT(5) 594 #define TB_LC_SX_CTRL_WOP BIT(6) 595 #define TB_LC_SX_CTRL_L1C BIT(16) 596 #define TB_LC_SX_CTRL_L1D BIT(17) 597 #define TB_LC_SX_CTRL_L2C BIT(20) 598 #define TB_LC_SX_CTRL_L2D BIT(21) 599 #define TB_LC_SX_CTRL_SLI BIT(29) 600 #define TB_LC_SX_CTRL_UPSTREAM BIT(30) 601 #define TB_LC_SX_CTRL_SLP BIT(31) 602 #define TB_LC_LINK_ATTR 0x97 603 #define TB_LC_LINK_ATTR_CPS BIT(18) 604 605 #define TB_LC_LINK_REQ 0xad 606 #define TB_LC_LINK_REQ_XHCI_CONNECT BIT(31) 607 608 #endif 609
