drivers/thunderbolt/tb_regs.h

   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_3                             0x03
 198 #define ROUTER_CS_3_V                           BIT(31)
 199 #define ROUTER_CS_4                             0x04
 200 /* Used with the router cmuv field */
 201 #define ROUTER_CS_4_CMUV_V1                     0x10
 202 #define ROUTER_CS_4_CMUV_V2                     0x20
 203 #define ROUTER_CS_5                             0x05
 204 #define ROUTER_CS_5_SLP                         BIT(0)
 205 #define ROUTER_CS_5_WOP                         BIT(1)
 206 #define ROUTER_CS_5_WOU                         BIT(2)
 207 #define ROUTER_CS_5_WOD                         BIT(3)
 208 #define ROUTER_CS_5_CNS                         BIT(23)
 209 #define ROUTER_CS_5_PTO                         BIT(24)
 210 #define ROUTER_CS_5_UTO                         BIT(25)
 211 #define ROUTER_CS_5_HCO                         BIT(26)
 212 #define ROUTER_CS_5_CV                          BIT(31)
 213 #define ROUTER_CS_6                             0x06
 214 #define ROUTER_CS_6_SLPR                        BIT(0)
 215 #define ROUTER_CS_6_TNS                         BIT(1)
 216 #define ROUTER_CS_6_WOPS                        BIT(2)
 217 #define ROUTER_CS_6_WOUS                        BIT(3)
 218 #define ROUTER_CS_6_HCI                         BIT(18)
 219 #define ROUTER_CS_6_CR                          BIT(25)
 220 #define ROUTER_CS_7                             0x07
 221 #define ROUTER_CS_9                             0x09
 222 #define ROUTER_CS_25                            0x19
 223 #define ROUTER_CS_26                            0x1a
 224 #define ROUTER_CS_26_OPCODE_MASK                GENMASK(15, 0)
 225 #define ROUTER_CS_26_STATUS_MASK                GENMASK(29, 24)
 226 #define ROUTER_CS_26_STATUS_SHIFT               24
 227 #define ROUTER_CS_26_ONS                        BIT(30)
 228 #define ROUTER_CS_26_OV                         BIT(31)
 229
 230 /* USB4 router operations opcodes */
 231 enum usb4_switch_op {
 232         USB4_SWITCH_OP_QUERY_DP_RESOURCE = 0x10,
 233         USB4_SWITCH_OP_ALLOC_DP_RESOURCE = 0x11,
 234         USB4_SWITCH_OP_DEALLOC_DP_RESOURCE = 0x12,
 235         USB4_SWITCH_OP_NVM_WRITE = 0x20,
 236         USB4_SWITCH_OP_NVM_AUTH = 0x21,
 237         USB4_SWITCH_OP_NVM_READ = 0x22,
 238         USB4_SWITCH_OP_NVM_SET_OFFSET = 0x23,
 239         USB4_SWITCH_OP_DROM_READ = 0x24,
 240         USB4_SWITCH_OP_NVM_SECTOR_SIZE = 0x25,
 241         USB4_SWITCH_OP_BUFFER_ALLOC = 0x33,
 242 };
 243
 244 /* Router TMU configuration */
 245 #define TMU_RTR_CS_0                            0x00
 246 #define TMU_RTR_CS_0_FREQ_WIND_MASK             GENMASK(26, 16)
 247 #define TMU_RTR_CS_0_TD                         BIT(27)
 248 #define TMU_RTR_CS_0_UCAP                       BIT(30)
 249 #define TMU_RTR_CS_1                            0x01
 250 #define TMU_RTR_CS_1_LOCAL_TIME_NS_MASK         GENMASK(31, 16)
 251 #define TMU_RTR_CS_1_LOCAL_TIME_NS_SHIFT        16
 252 #define TMU_RTR_CS_2                            0x02
 253 #define TMU_RTR_CS_3                            0x03
 254 #define TMU_RTR_CS_3_LOCAL_TIME_NS_MASK         GENMASK(15, 0)
 255 #define TMU_RTR_CS_3_TS_PACKET_INTERVAL_MASK    GENMASK(31, 16)
 256 #define TMU_RTR_CS_3_TS_PACKET_INTERVAL_SHIFT   16
 257 #define TMU_RTR_CS_15                           0x0f
 258 #define TMU_RTR_CS_15_FREQ_AVG_MASK             GENMASK(5, 0)
 259 #define TMU_RTR_CS_15_DELAY_AVG_MASK            GENMASK(11, 6)
 260 #define TMU_RTR_CS_15_OFFSET_AVG_MASK           GENMASK(17, 12)
 261 #define TMU_RTR_CS_15_ERROR_AVG_MASK            GENMASK(23, 18)
 262 #define TMU_RTR_CS_18                           0x12
 263 #define TMU_RTR_CS_18_DELTA_AVG_CONST_MASK      GENMASK(23, 16)
 264 #define TMU_RTR_CS_22                           0x16
 265 #define TMU_RTR_CS_24                           0x18
 266 #define TMU_RTR_CS_25                           0x19
 267
 268 enum tb_port_type {
 269         TB_TYPE_INACTIVE        = 0x000000,
 270         TB_TYPE_PORT            = 0x000001,
 271         TB_TYPE_NHI             = 0x000002,
 272         /* TB_TYPE_ETHERNET     = 0x020000, lower order bits are not known */
 273         /* TB_TYPE_SATA         = 0x080000, lower order bits are not known */
 274         TB_TYPE_DP_HDMI_IN      = 0x0e0101,
 275         TB_TYPE_DP_HDMI_OUT     = 0x0e0102,
 276         TB_TYPE_PCIE_DOWN       = 0x100101,
 277         TB_TYPE_PCIE_UP         = 0x100102,
 278         TB_TYPE_USB3_DOWN       = 0x200101,
 279         TB_TYPE_USB3_UP         = 0x200102,
 280 };
 281
 282 /* Present on every port in TB_CF_PORT at address zero. */
 283 struct tb_regs_port_header {
 284         /* DWORD 0 */
 285         u16 vendor_id;
 286         u16 device_id;
 287         /* DWORD 1 */
 288         u32 first_cap_offset:8;
 289         u32 max_counters:11;
 290         u32 counters_support:1;
 291         u32 __unknown1:4;
 292         u32 revision:8;
 293         /* DWORD 2 */
 294         enum tb_port_type type:24;
 295         u32 thunderbolt_version:8;
 296         /* DWORD 3 */
 297         u32 __unknown2:20;
 298         u32 port_number:6;
 299         u32 __unknown3:6;
 300         /* DWORD 4 */
 301         u32 nfc_credits;
 302         /* DWORD 5 */
 303         u32 max_in_hop_id:11;
 304         u32 max_out_hop_id:11;
 305         u32 __unknown4:10;
 306         /* DWORD 6 */
 307         u32 __unknown5;
 308         /* DWORD 7 */
 309         u32 __unknown6;
 310
 311 } __packed;
 312
 313 /* Basic adapter configuration registers */
 314 #define ADP_CS_4                                0x04
 315 #define ADP_CS_4_NFC_BUFFERS_MASK               GENMASK(9, 0)
 316 #define ADP_CS_4_TOTAL_BUFFERS_MASK             GENMASK(29, 20)
 317 #define ADP_CS_4_TOTAL_BUFFERS_SHIFT            20
 318 #define ADP_CS_4_LCK                            BIT(31)
 319 #define ADP_CS_5                                0x05
 320 #define ADP_CS_5_LCA_MASK                       GENMASK(28, 22)
 321 #define ADP_CS_5_LCA_SHIFT                      22
 322 #define ADP_CS_5_DHP                            BIT(31)
 323
 324 /* TMU adapter registers */
 325 #define TMU_ADP_CS_3                            0x03
 326 #define TMU_ADP_CS_3_UDM                        BIT(29)
 327 #define TMU_ADP_CS_6                            0x06
 328 #define TMU_ADP_CS_6_DTS                        BIT(1)
 329 #define TMU_ADP_CS_8                            0x08
 330 #define TMU_ADP_CS_8_REPL_TIMEOUT_MASK          GENMASK(14, 0)
 331 #define TMU_ADP_CS_8_EUDM                       BIT(15)
 332 #define TMU_ADP_CS_8_REPL_THRESHOLD_MASK        GENMASK(25, 16)
 333 #define TMU_ADP_CS_9                            0x09
 334 #define TMU_ADP_CS_9_REPL_N_MASK                GENMASK(7, 0)
 335 #define TMU_ADP_CS_9_DIRSWITCH_N_MASK           GENMASK(15, 8)
 336 #define TMU_ADP_CS_9_ADP_TS_INTERVAL_MASK       GENMASK(31, 16)
 337
 338 /* Lane adapter registers */
 339 #define LANE_ADP_CS_0                           0x00
 340 #define LANE_ADP_CS_0_SUPPORTED_SPEED_MASK      GENMASK(19, 16)
 341 #define LANE_ADP_CS_0_SUPPORTED_SPEED_SHIFT     16
 342 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_MASK      GENMASK(25, 20)
 343 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_SHIFT     20
 344 #define LANE_ADP_CS_0_SUPPORTED_WIDTH_DUAL      0x2
 345 #define LANE_ADP_CS_0_CL0S_SUPPORT              BIT(26)
 346 #define LANE_ADP_CS_0_CL1_SUPPORT               BIT(27)
 347 #define LANE_ADP_CS_0_CL2_SUPPORT               BIT(28)
 348 #define LANE_ADP_CS_1                           0x01
 349 #define LANE_ADP_CS_1_TARGET_SPEED_MASK         GENMASK(3, 0)
 350 #define LANE_ADP_CS_1_TARGET_SPEED_GEN3         0xc
 351 #define LANE_ADP_CS_1_TARGET_WIDTH_MASK         GENMASK(5, 4)
 352 #define LANE_ADP_CS_1_TARGET_WIDTH_SHIFT        4
 353 #define LANE_ADP_CS_1_TARGET_WIDTH_SINGLE       0x1
 354 #define LANE_ADP_CS_1_TARGET_WIDTH_DUAL         0x3
 355 #define LANE_ADP_CS_1_TARGET_WIDTH_ASYM_MASK    GENMASK(7, 6)
 356 #define LANE_ADP_CS_1_TARGET_WIDTH_ASYM_TX      0x1
 357 #define LANE_ADP_CS_1_TARGET_WIDTH_ASYM_RX      0x2
 358 #define LANE_ADP_CS_1_TARGET_WIDTH_ASYM_DUAL    0x0
 359 #define LANE_ADP_CS_1_CL0S_ENABLE               BIT(10)
 360 #define LANE_ADP_CS_1_CL1_ENABLE                BIT(11)
 361 #define LANE_ADP_CS_1_CL2_ENABLE                BIT(12)
 362 #define LANE_ADP_CS_1_LD                        BIT(14)
 363 #define LANE_ADP_CS_1_LB                        BIT(15)
 364 #define LANE_ADP_CS_1_CURRENT_SPEED_MASK        GENMASK(19, 16)
 365 #define LANE_ADP_CS_1_CURRENT_SPEED_SHIFT       16
 366 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN2        0x8
 367 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN3        0x4
 368 #define LANE_ADP_CS_1_CURRENT_SPEED_GEN4        0x2
 369 #define LANE_ADP_CS_1_CURRENT_WIDTH_MASK        GENMASK(25, 20)
 370 #define LANE_ADP_CS_1_CURRENT_WIDTH_SHIFT       20
 371 #define LANE_ADP_CS_1_PMS                       BIT(30)
 372
 373 /* USB4 port registers */
 374 #define PORT_CS_1                               0x01
 375 #define PORT_CS_1_LENGTH_SHIFT                  8
 376 #define PORT_CS_1_TARGET_MASK                   GENMASK(18, 16)
 377 #define PORT_CS_1_TARGET_SHIFT                  16
 378 #define PORT_CS_1_RETIMER_INDEX_SHIFT           20
 379 #define PORT_CS_1_WNR_WRITE                     BIT(24)
 380 #define PORT_CS_1_NR                            BIT(25)
 381 #define PORT_CS_1_RC                            BIT(26)
 382 #define PORT_CS_1_PND                           BIT(31)
 383 #define PORT_CS_2                               0x02
 384 #define PORT_CS_18                              0x12
 385 #define PORT_CS_18_BE                           BIT(8)
 386 #define PORT_CS_18_TCM                          BIT(9)
 387 #define PORT_CS_18_CPS                          BIT(10)
 388 #define PORT_CS_18_WOCS                         BIT(16)
 389 #define PORT_CS_18_WODS                         BIT(17)
 390 #define PORT_CS_18_WOU4S                        BIT(18)
 391 #define PORT_CS_18_CSA                          BIT(22)
 392 #define PORT_CS_18_TIP                          BIT(24)
 393 #define PORT_CS_19                              0x13
 394 #define PORT_CS_19_DPR                          BIT(0)
 395 #define PORT_CS_19_PC                           BIT(3)
 396 #define PORT_CS_19_PID                          BIT(4)
 397 #define PORT_CS_19_WOC                          BIT(16)
 398 #define PORT_CS_19_WOD                          BIT(17)
 399 #define PORT_CS_19_WOU4                         BIT(18)
 400 #define PORT_CS_19_START_ASYM                   BIT(24)
 401
 402 /* Display Port adapter registers */
 403 #define ADP_DP_CS_0                             0x00
 404 #define ADP_DP_CS_0_VIDEO_HOPID_MASK            GENMASK(26, 16)
 405 #define ADP_DP_CS_0_VIDEO_HOPID_SHIFT           16
 406 #define ADP_DP_CS_0_AE                          BIT(30)
 407 #define ADP_DP_CS_0_VE                          BIT(31)
 408 #define ADP_DP_CS_1_AUX_TX_HOPID_MASK           GENMASK(10, 0)
 409 #define ADP_DP_CS_1_AUX_RX_HOPID_MASK           GENMASK(21, 11)
 410 #define ADP_DP_CS_1_AUX_RX_HOPID_SHIFT          11
 411 #define ADP_DP_CS_2                             0x02
 412 #define ADP_DP_CS_2_NRD_MLC_MASK                GENMASK(2, 0)
 413 #define ADP_DP_CS_2_HPD                         BIT(6)
 414 #define ADP_DP_CS_2_NRD_MLR_MASK                GENMASK(9, 7)
 415 #define ADP_DP_CS_2_NRD_MLR_SHIFT               7
 416 #define ADP_DP_CS_2_CA                          BIT(10)
 417 #define ADP_DP_CS_2_GR_MASK                     GENMASK(12, 11)
 418 #define ADP_DP_CS_2_GR_SHIFT                    11
 419 #define ADP_DP_CS_2_GR_0_25G                    0x0
 420 #define ADP_DP_CS_2_GR_0_5G                     0x1
 421 #define ADP_DP_CS_2_GR_1G                       0x2
 422 #define ADP_DP_CS_2_GROUP_ID_MASK               GENMASK(15, 13)
 423 #define ADP_DP_CS_2_GROUP_ID_SHIFT              13
 424 #define ADP_DP_CS_2_CM_ID_MASK                  GENMASK(19, 16)
 425 #define ADP_DP_CS_2_CM_ID_SHIFT                 16
 426 #define ADP_DP_CS_2_CMMS                        BIT(20)
 427 #define ADP_DP_CS_2_ESTIMATED_BW_MASK           GENMASK(31, 24)
 428 #define ADP_DP_CS_2_ESTIMATED_BW_SHIFT          24
 429 #define ADP_DP_CS_3                             0x03
 430 #define ADP_DP_CS_3_HPDC                        BIT(9)
 431 #define DP_LOCAL_CAP                            0x04
 432 #define DP_REMOTE_CAP                           0x05
 433 /* For DP IN adapter */
 434 #define DP_STATUS                               0x06
 435 #define DP_STATUS_ALLOCATED_BW_MASK             GENMASK(31, 24)
 436 #define DP_STATUS_ALLOCATED_BW_SHIFT            24
 437 /* For DP OUT adapter */
 438 #define DP_STATUS_CTRL                          0x06
 439 #define DP_STATUS_CTRL_CMHS                     BIT(25)
 440 #define DP_STATUS_CTRL_UF                       BIT(26)
 441 #define DP_COMMON_CAP                           0x07
 442 /* Only if DP IN supports BW allocation mode */
 443 #define ADP_DP_CS_8                             0x08
 444 #define ADP_DP_CS_8_REQUESTED_BW_MASK           GENMASK(7, 0)
 445 #define ADP_DP_CS_8_DPME                        BIT(30)
 446 #define ADP_DP_CS_8_DR                          BIT(31)
 447
 448 /*
 449  * DP_COMMON_CAP offsets work also for DP_LOCAL_CAP and DP_REMOTE_CAP
 450  * with exception of DPRX done.
 451  */
 452 #define DP_COMMON_CAP_RATE_MASK                 GENMASK(11, 8)
 453 #define DP_COMMON_CAP_RATE_SHIFT                8
 454 #define DP_COMMON_CAP_RATE_RBR                  0x0
 455 #define DP_COMMON_CAP_RATE_HBR                  0x1
 456 #define DP_COMMON_CAP_RATE_HBR2                 0x2
 457 #define DP_COMMON_CAP_RATE_HBR3                 0x3
 458 #define DP_COMMON_CAP_LANES_MASK                GENMASK(14, 12)
 459 #define DP_COMMON_CAP_LANES_SHIFT               12
 460 #define DP_COMMON_CAP_1_LANE                    0x0
 461 #define DP_COMMON_CAP_2_LANES                   0x1
 462 #define DP_COMMON_CAP_4_LANES                   0x2
 463 #define DP_COMMON_CAP_UHBR10                    BIT(17)
 464 #define DP_COMMON_CAP_UHBR20                    BIT(18)
 465 #define DP_COMMON_CAP_UHBR13_5                  BIT(19)
 466 #define DP_COMMON_CAP_LTTPR_NS                  BIT(27)
 467 #define DP_COMMON_CAP_BW_MODE                   BIT(28)
 468 #define DP_COMMON_CAP_DPRX_DONE                 BIT(31)
 469 /* Only present if DP IN supports BW allocation mode */
 470 #define ADP_DP_CS_8                             0x08
 471 #define ADP_DP_CS_8_DPME                        BIT(30)
 472 #define ADP_DP_CS_8_DR                          BIT(31)
 473
 474 /* PCIe adapter registers */
 475 #define ADP_PCIE_CS_0                           0x00
 476 #define ADP_PCIE_CS_0_PE                        BIT(31)
 477 #define ADP_PCIE_CS_1                           0x01
 478 #define ADP_PCIE_CS_1_EE                        BIT(0)
 479
 480 /* USB adapter registers */
 481 #define ADP_USB3_CS_0                           0x00
 482 #define ADP_USB3_CS_0_V                         BIT(30)
 483 #define ADP_USB3_CS_0_PE                        BIT(31)
 484 #define ADP_USB3_CS_1                           0x01
 485 #define ADP_USB3_CS_1_CUBW_MASK                 GENMASK(11, 0)
 486 #define ADP_USB3_CS_1_CDBW_MASK                 GENMASK(23, 12)
 487 #define ADP_USB3_CS_1_CDBW_SHIFT                12
 488 #define ADP_USB3_CS_1_HCA                       BIT(31)
 489 #define ADP_USB3_CS_2                           0x02
 490 #define ADP_USB3_CS_2_AUBW_MASK                 GENMASK(11, 0)
 491 #define ADP_USB3_CS_2_ADBW_MASK                 GENMASK(23, 12)
 492 #define ADP_USB3_CS_2_ADBW_SHIFT                12
 493 #define ADP_USB3_CS_2_CMR                       BIT(31)
 494 #define ADP_USB3_CS_3                           0x03
 495 #define ADP_USB3_CS_3_SCALE_MASK                GENMASK(5, 0)
 496 #define ADP_USB3_CS_4                           0x04
 497 #define ADP_USB3_CS_4_MSLR_MASK                 GENMASK(18, 12)
 498 #define ADP_USB3_CS_4_MSLR_SHIFT                12
 499 #define ADP_USB3_CS_4_MSLR_20G                  0x1
 500
 501 /* Hop register from TB_CFG_HOPS. 8 byte per entry. */
 502 struct tb_regs_hop {
 503         /* DWORD 0 */
 504         u32 next_hop:11; /*
 505                           * hop to take after sending the packet through
 506                           * out_port (on the incoming port of the next switch)
 507                           */
 508         u32 out_port:6; /* next port of the path (on the same switch) */
 509         u32 initial_credits:7;
 510         u32 pmps:1;
 511         u32 unknown1:6; /* set to zero */
 512         bool enable:1;
 513
 514         /* DWORD 1 */
 515         u32 weight:4;
 516         u32 unknown2:4; /* set to zero */
 517         u32 priority:3;
 518         bool drop_packages:1;
 519         u32 counter:11; /* index into TB_CFG_COUNTERS on this port */
 520         bool counter_enable:1;
 521         bool ingress_fc:1;
 522         bool egress_fc:1;
 523         bool ingress_shared_buffer:1;
 524         bool egress_shared_buffer:1;
 525         bool pending:1;
 526         u32 unknown3:3; /* set to zero */
 527 } __packed;
 528
 529 /* TMU Thunderbolt 3 registers */
 530 #define TB_TIME_VSEC_3_CS_9                     0x9
 531 #define TB_TIME_VSEC_3_CS_9_TMU_OBJ_MASK        GENMASK(17, 16)
 532 #define TB_TIME_VSEC_3_CS_26                    0x1a
 533 #define TB_TIME_VSEC_3_CS_26_TD                 BIT(22)
 534
 535 /*
 536  * Used for Titan Ridge only. Bits are part of the same register: TMU_ADP_CS_6
 537  * (see above) as in USB4 spec, but these specific bits used for Titan Ridge
 538  * only and reserved in USB4 spec.
 539  */
 540 #define TMU_ADP_CS_6_DISABLE_TMU_OBJ_MASK       GENMASK(3, 2)
 541 #define TMU_ADP_CS_6_DISABLE_TMU_OBJ_CL1        BIT(2)
 542 #define TMU_ADP_CS_6_DISABLE_TMU_OBJ_CL2        BIT(3)
 543
 544 /* Plug Events registers */
 545 #define TB_PLUG_EVENTS_USB_DISABLE              BIT(2)
 546 #define TB_PLUG_EVENTS_CS_1_LANE_DISABLE        BIT(3)
 547 #define TB_PLUG_EVENTS_CS_1_DPOUT_DISABLE       BIT(4)
 548 #define TB_PLUG_EVENTS_CS_1_LOW_DPIN_DISABLE    BIT(5)
 549 #define TB_PLUG_EVENTS_CS_1_HIGH_DPIN_DISABLE   BIT(6)
 550
 551 #define TB_PLUG_EVENTS_PCIE_WR_DATA             0x1b
 552 #define TB_PLUG_EVENTS_PCIE_CMD                 0x1c
 553 #define TB_PLUG_EVENTS_PCIE_CMD_DW_OFFSET_MASK  GENMASK(9, 0)
 554 #define TB_PLUG_EVENTS_PCIE_CMD_BR_SHIFT        10
 555 #define TB_PLUG_EVENTS_PCIE_CMD_BR_MASK         GENMASK(17, 10)
 556 #define TB_PLUG_EVENTS_PCIE_CMD_RD_WR_MASK      BIT(21)
 557 #define TB_PLUG_EVENTS_PCIE_CMD_WR              0x1
 558 #define TB_PLUG_EVENTS_PCIE_CMD_COMMAND_SHIFT   22
 559 #define TB_PLUG_EVENTS_PCIE_CMD_COMMAND_MASK    GENMASK(24, 22)
 560 #define TB_PLUG_EVENTS_PCIE_CMD_COMMAND_VAL     0x2
 561 #define TB_PLUG_EVENTS_PCIE_CMD_REQ_ACK_MASK    BIT(30)
 562 #define TB_PLUG_EVENTS_PCIE_CMD_TIMEOUT_MASK    BIT(31)
 563 #define TB_PLUG_EVENTS_PCIE_CMD_RD_DATA         0x1d
 564
 565 /* CP Low Power registers */
 566 #define TB_LOW_PWR_C1_CL1                       0x1
 567 #define TB_LOW_PWR_C1_CL1_OBJ_MASK              GENMASK(4, 1)
 568 #define TB_LOW_PWR_C1_CL2_OBJ_MASK              GENMASK(4, 1)
 569 #define TB_LOW_PWR_C1_PORT_A_MASK               GENMASK(2, 1)
 570 #define TB_LOW_PWR_C0_PORT_B_MASK               GENMASK(4, 3)
 571 #define TB_LOW_PWR_C3_CL1                       0x3
 572
 573 /* Common link controller registers */
 574 #define TB_LC_DESC                              0x02
 575 #define TB_LC_DESC_NLC_MASK                     GENMASK(3, 0)
 576 #define TB_LC_DESC_SIZE_SHIFT                   8
 577 #define TB_LC_DESC_SIZE_MASK                    GENMASK(15, 8)
 578 #define TB_LC_DESC_PORT_SIZE_SHIFT              16
 579 #define TB_LC_DESC_PORT_SIZE_MASK               GENMASK(27, 16)
 580 #define TB_LC_FUSE                              0x03
 581 #define TB_LC_SNK_ALLOCATION                    0x10
 582 #define TB_LC_SNK_ALLOCATION_SNK0_MASK          GENMASK(3, 0)
 583 #define TB_LC_SNK_ALLOCATION_SNK0_CM            0x1
 584 #define TB_LC_SNK_ALLOCATION_SNK1_SHIFT         4
 585 #define TB_LC_SNK_ALLOCATION_SNK1_MASK          GENMASK(7, 4)
 586 #define TB_LC_SNK_ALLOCATION_SNK1_CM            0x1
 587 #define TB_LC_POWER                             0x740
 588
 589 /* Link controller registers */
 590 #define TB_LC_PORT_MODE                         0x26
 591 #define TB_LC_PORT_MODE_DPR                     BIT(0)
 592
 593 #define TB_LC_CS_42                             0x2a
 594 #define TB_LC_CS_42_USB_PLUGGED                 BIT(31)
 595
 596 #define TB_LC_PORT_ATTR                         0x8d
 597 #define TB_LC_PORT_ATTR_BE                      BIT(12)
 598
 599 #define TB_LC_SX_CTRL                           0x96
 600 #define TB_LC_SX_CTRL_WOC                       BIT(1)
 601 #define TB_LC_SX_CTRL_WOD                       BIT(2)
 602 #define TB_LC_SX_CTRL_WODPC                     BIT(3)
 603 #define TB_LC_SX_CTRL_WODPD                     BIT(4)
 604 #define TB_LC_SX_CTRL_WOU4                      BIT(5)
 605 #define TB_LC_SX_CTRL_WOP                       BIT(6)
 606 #define TB_LC_SX_CTRL_L1C                       BIT(16)
 607 #define TB_LC_SX_CTRL_L1D                       BIT(17)
 608 #define TB_LC_SX_CTRL_L2C                       BIT(20)
 609 #define TB_LC_SX_CTRL_L2D                       BIT(21)
 610 #define TB_LC_SX_CTRL_SLI                       BIT(29)
 611 #define TB_LC_SX_CTRL_UPSTREAM                  BIT(30)
 612 #define TB_LC_SX_CTRL_SLP                       BIT(31)
 613 #define TB_LC_LINK_ATTR                         0x97
 614 #define TB_LC_LINK_ATTR_CPS                     BIT(18)
 615
 616 #define TB_LC_LINK_REQ                          0xad
 617 #define TB_LC_LINK_REQ_XHCI_CONNECT             BIT(31)
 618
 619 #endif