src/pld/lattice.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2
   3 /***************************************************************************
   4  *   Copyright (C) 2022 by Daniel Anselmi                                  *
   5  *   danselmi@gmx.ch                                                       *
   6  ***************************************************************************/
   7
   8 #ifdef HAVE_CONFIG_H
   9 #include "config.h"
  10 #endif
  11
  12 #include "lattice.h"
  13 #include <jtag/jtag.h>
  14 #include "pld.h"
  15 #include "lattice_bit.h"
  16 #include "ecp2_3.h"
  17 #include "ecp5.h"
  18 #include "certus.h"
  19
  20 #define PRELOAD              0x1C
  21 #define USER1                0x32
  22 #define USER2                0x38
  23
  24
  25 struct lattice_devices_elem {
  26         uint32_t id;
  27         size_t preload_length;
  28         enum lattice_family_e family;
  29 };
  30
  31 static const struct lattice_devices_elem lattice_devices[] = {
  32         {0x01270043,  654, LATTICE_ECP2 /* ecp2-6e */},
  33         {0x01271043,  643, LATTICE_ECP2 /* ecp2-12e */},
  34         {0x01272043,  827, LATTICE_ECP2 /* ecp2-20e */},
  35         {0x01274043, 1011, LATTICE_ECP2 /* ecp2-35e */},
  36         {0x01273043, 1219, LATTICE_ECP2 /* ecp2-50e */},
  37         {0x01275043,  654, LATTICE_ECP2 /* ecp2-70e */},
  38         {0x01279043,  680, LATTICE_ECP2 /* ecp2m20e */},
  39         {0x0127A043,  936, LATTICE_ECP2 /* ecp2m35e */},
  40         {0x0127B043, 1056, LATTICE_ECP2 /* ecp2m50e */},
  41         {0x0127C043, 1039, LATTICE_ECP2 /* ecp2m70e */},
  42         {0x0127D043, 1311, LATTICE_ECP2 /* ecp2m100e */},
  43         {0x01010043,  467, LATTICE_ECP3 /* ecp3 lae3-17ea & lfe3-17ea*/},
  44         {0x01012043,  675, LATTICE_ECP3 /* ecp3 lae3-35ea & lfe3-35ea*/},
  45         {0x01014043, 1077, LATTICE_ECP3 /* ecp3 lfe3-70ea & lfe3-70e & lfe3-95ea && lfe3-95e*/},
  46         {0x01015043, 1326, LATTICE_ECP3 /* ecp3 lfe3-150e*/},
  47         {0x21111043,  409, LATTICE_ECP5 /* "LAE5U-12F & LFE5U-12F" */},
  48         {0x41111043,  409, LATTICE_ECP5 /* "LFE5U-25F" */},
  49         {0x41112043,  510, LATTICE_ECP5 /* "LFE5U-45F" */},
  50         {0x41113043,  750, LATTICE_ECP5 /* "LFE5U-85F" */},
  51         {0x81111043,  409, LATTICE_ECP5 /* "LFE5UM5G-25F" */},
  52         {0x81112043,  510, LATTICE_ECP5 /* "LFE5UM5G-45F" */},
  53         {0x81113043,  750, LATTICE_ECP5 /* "LFE5UM5G-85F" */},
  54         {0x01111043,  409, LATTICE_ECP5 /* "LAE5UM-25F" */},
  55         {0x01112043,  510, LATTICE_ECP5 /* "LAE5UM-45F" */},
  56         {0x01113043,  750, LATTICE_ECP5 /* "LAE5UM-85F" */},
  57         {0x310f0043,  362, LATTICE_CERTUS /* LFD2NX-17 */},
  58         {0x310f1043,  362, LATTICE_CERTUS /* LFD2NX-40 */},
  59         {0x010f4043,  362, LATTICE_CERTUS /* LFCPNX-100 */},
  60 };
  61
  62 int lattice_set_instr(struct jtag_tap *tap, uint8_t new_instr, tap_state_t endstate)
  63 {
  64         struct scan_field field;
  65         field.num_bits = tap->ir_length;
  66         void *t = calloc(DIV_ROUND_UP(field.num_bits, 8), 1);
  67         if (!t) {
  68                 LOG_ERROR("Out of memory");
  69                 return ERROR_FAIL;
  70         }
  71         field.out_value = t;
  72         buf_set_u32(t, 0, field.num_bits, new_instr);
  73         field.in_value = NULL;
  74         jtag_add_ir_scan(tap, &field, endstate);
  75         free(t);
  76         return ERROR_OK;
  77 }
  78
  79 static int lattice_check_device_family(struct lattice_pld_device *lattice_device)
  80 {
  81         if (lattice_device->family != LATTICE_UNKNOWN && lattice_device->preload_length != 0)
  82                 return ERROR_OK;
  83
  84         if (!lattice_device->tap || !lattice_device->tap->hasidcode)
  85                 return ERROR_FAIL;
  86
  87         for (size_t i = 0; i < ARRAY_SIZE(lattice_devices); ++i) {
  88                 if (lattice_devices[i].id == lattice_device->tap->idcode) {
  89                         if (lattice_device->family == LATTICE_UNKNOWN)
  90                                 lattice_device->family = lattice_devices[i].family;
  91                         if (lattice_device->preload_length == 0)
  92                                 lattice_device->preload_length = lattice_devices[i].preload_length;
  93                         return ERROR_OK;
  94                 }
  95         }
  96         LOG_ERROR("Unknown id! Specify family and preload-length manually.");
  97         return ERROR_FAIL;
  98 }
  99
 100 int lattice_read_u32_register(struct jtag_tap *tap, uint8_t cmd, uint32_t *in_val,
 101                                                         uint32_t out_val, bool do_idle)
 102 {
 103         struct scan_field field;
 104         uint8_t buffer[4];
 105
 106         int retval = lattice_set_instr(tap, cmd, TAP_IDLE);
 107         if (retval != ERROR_OK)
 108                 return retval;
 109         if (do_idle) {
 110                 jtag_add_runtest(2, TAP_IDLE);
 111                 jtag_add_sleep(1000);
 112         }
 113
 114         h_u32_to_le(buffer, out_val);
 115         field.num_bits = 32;
 116         field.out_value = buffer;
 117         field.in_value = buffer;
 118         jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
 119         retval = jtag_execute_queue();
 120         if (retval == ERROR_OK)
 121                 *in_val = le_to_h_u32(buffer);
 122
 123         return retval;
 124 }
 125
 126 int lattice_read_u64_register(struct jtag_tap *tap, uint8_t cmd, uint64_t *in_val,
 127                                                         uint64_t out_val)
 128 {
 129         struct scan_field field;
 130         uint8_t buffer[8];
 131
 132         int retval = lattice_set_instr(tap, cmd, TAP_IDLE);
 133         if (retval != ERROR_OK)
 134                 return retval;
 135         h_u64_to_le(buffer, out_val);
 136         field.num_bits = 64;
 137         field.out_value = buffer;
 138         field.in_value = buffer;
 139         jtag_add_dr_scan(tap, 1, &field, TAP_IDLE);
 140         retval = jtag_execute_queue();
 141         if (retval == ERROR_OK)
 142                 *in_val = le_to_h_u64(buffer);
 143
 144         return retval;
 145 }
 146
 147 int lattice_preload(struct lattice_pld_device *lattice_device)
 148 {
 149         struct scan_field field;
 150         size_t sz_bytes = DIV_ROUND_UP(lattice_device->preload_length, 8);
 151
 152         int retval = lattice_set_instr(lattice_device->tap, PRELOAD, TAP_IDLE);
 153         if (retval != ERROR_OK)
 154                 return retval;
 155         uint8_t *buffer = malloc(sz_bytes);
 156         if (!buffer) {
 157                 LOG_ERROR("Out of memory");
 158                 return ERROR_FAIL;
 159         }
 160         memset(buffer, 0xff, sz_bytes);
 161
 162         field.num_bits = lattice_device->preload_length;
 163         field.out_value = buffer;
 164         field.in_value = NULL;
 165         jtag_add_dr_scan(lattice_device->tap, 1, &field, TAP_IDLE);
 166         retval = jtag_execute_queue();
 167         free(buffer);
 168         return retval;
 169 }
 170
 171 static int lattice_read_usercode(struct lattice_pld_device *lattice_device, uint32_t *usercode, uint32_t out)
 172 {
 173         struct jtag_tap *tap = lattice_device->tap;
 174         if (!tap)
 175                 return ERROR_FAIL;
 176
 177         if (lattice_device->family == LATTICE_ECP2 || lattice_device->family == LATTICE_ECP3)
 178                 return lattice_ecp2_3_read_usercode(tap, usercode, out);
 179         else if (lattice_device->family == LATTICE_ECP5)
 180                 return lattice_ecp5_read_usercode(tap, usercode, out);
 181         else if (lattice_device->family == LATTICE_CERTUS)
 182                 return lattice_certus_read_usercode(tap, usercode, out);
 183
 184         return ERROR_FAIL;
 185 }
 186
 187 int lattice_verify_usercode(struct lattice_pld_device *lattice_device, uint32_t out,
 188                                                 uint32_t expected, uint32_t mask)
 189 {
 190         uint32_t usercode;
 191
 192         int retval = lattice_read_usercode(lattice_device, &usercode, out);
 193         if (retval != ERROR_OK)
 194                 return retval;
 195
 196         if ((usercode & mask) != expected) {
 197                 LOG_ERROR("verifying user code register failed got: 0x%08" PRIx32 " expected: 0x%08" PRIx32,
 198                         usercode & mask, expected);
 199                 return ERROR_FAIL;
 200         }
 201         return ERROR_OK;
 202 }
 203
 204 static int lattice_write_usercode(struct lattice_pld_device *lattice_device, uint32_t usercode)
 205 {
 206         if (lattice_device->family == LATTICE_ECP2 || lattice_device->family == LATTICE_ECP3)
 207                 return lattice_ecp2_3_write_usercode(lattice_device, usercode);
 208         else if (lattice_device->family == LATTICE_ECP5)
 209                 return lattice_ecp5_write_usercode(lattice_device, usercode);
 210         else if (lattice_device->family == LATTICE_CERTUS)
 211                 return lattice_certus_write_usercode(lattice_device, usercode);
 212
 213         return ERROR_FAIL;
 214 }
 215
 216 static int lattice_read_status_u32(struct lattice_pld_device *lattice_device, uint32_t *status,
 217                                                                 uint32_t out, bool do_idle)
 218 {
 219         if (!lattice_device->tap)
 220                 return ERROR_FAIL;
 221
 222         if (lattice_device->family == LATTICE_ECP2 || lattice_device->family == LATTICE_ECP3)
 223                 return lattice_ecp2_3_read_status(lattice_device->tap, status, out, do_idle);
 224         else if (lattice_device->family == LATTICE_ECP5)
 225                 return lattice_ecp5_read_status(lattice_device->tap, status, out, do_idle);
 226
 227         return ERROR_FAIL;
 228 }
 229 static int lattice_read_status_u64(struct lattice_pld_device *lattice_device, uint64_t *status,
 230                                                                 uint64_t out)
 231 {
 232         if (!lattice_device->tap)
 233                 return ERROR_FAIL;
 234
 235         if (lattice_device->family == LATTICE_CERTUS)
 236                 return lattice_certus_read_status(lattice_device->tap, status, out);
 237
 238         return ERROR_FAIL;
 239 }
 240
 241 int lattice_verify_status_register_u32(struct lattice_pld_device *lattice_device, uint32_t out,
 242                                                 uint32_t expected, uint32_t mask, bool do_idle)
 243 {
 244         uint32_t status;
 245         int retval = lattice_read_status_u32(lattice_device, &status, out, do_idle);
 246         if (retval != ERROR_OK)
 247                 return retval;
 248
 249         if ((status & mask) != expected) {
 250                 LOG_ERROR("verifying status register failed got: 0x%08" PRIx32 " expected: 0x%08" PRIx32,
 251                         status & mask, expected);
 252                 return ERROR_FAIL;
 253         }
 254         return ERROR_OK;
 255 }
 256
 257 int lattice_verify_status_register_u64(struct lattice_pld_device *lattice_device, uint64_t out,
 258                                                 uint64_t expected, uint64_t mask)
 259 {
 260         uint64_t status;
 261         int retval = lattice_read_status_u64(lattice_device, &status, out);
 262         if (retval != ERROR_OK)
 263                 return retval;
 264
 265         if ((status & mask) != expected) {
 266                 LOG_ERROR("verifying status register failed got: 0x%08" PRIx64 " expected: 0x%08" PRIx64,
 267                         status & mask, expected);
 268                 return ERROR_FAIL;
 269         }
 270         return ERROR_OK;
 271 }
 272
 273 static int lattice_load_command(struct pld_device *pld_device, const char *filename)
 274 {
 275         if (!pld_device)
 276                 return ERROR_FAIL;
 277
 278         struct lattice_pld_device *lattice_device = pld_device->driver_priv;
 279         if (!lattice_device || !lattice_device->tap)
 280                 return ERROR_FAIL;
 281         struct jtag_tap *tap = lattice_device->tap;
 282
 283         if (!tap || !tap->hasidcode)
 284                 return ERROR_FAIL;
 285
 286         int retval = lattice_check_device_family(lattice_device);
 287         if (retval != ERROR_OK)
 288                 return retval;
 289
 290         struct lattice_bit_file bit_file;
 291         retval = lattice_read_file(&bit_file, filename, lattice_device->family);
 292         if (retval != ERROR_OK)
 293                 return retval;
 294
 295         uint32_t id = tap->idcode;
 296         retval = ERROR_FAIL;
 297         switch (lattice_device->family) {
 298         case LATTICE_ECP2:
 299                 retval = lattice_ecp2_load(lattice_device, &bit_file);
 300                 break;
 301         case LATTICE_ECP3:
 302                 retval = lattice_ecp3_load(lattice_device, &bit_file);
 303                 break;
 304         case LATTICE_ECP5:
 305         case LATTICE_CERTUS:
 306                 if (bit_file.has_id && id != bit_file.idcode)
 307                         LOG_WARNING("Id on device (0x%8.8" PRIx32 ") and id in bit-stream (0x%8.8" PRIx32 ") don't match.",
 308                                 id, bit_file.idcode);
 309                 if (lattice_device->family == LATTICE_ECP5)
 310                         retval = lattice_ecp5_load(lattice_device, &bit_file);
 311                 else
 312                         retval = lattice_certus_load(lattice_device, &bit_file);
 313                 break;
 314         default:
 315                 LOG_ERROR("loading unknown device family");
 316                 break;
 317         }
 318         free(bit_file.raw_bit.data);
 319         return retval;
 320 }
 321
 322 static int lattice_get_ipdbg_hub(int user_num, struct pld_device *pld_device, struct pld_ipdbg_hub *hub)
 323 {
 324         if (!pld_device)
 325                 return ERROR_FAIL;
 326
 327         struct lattice_pld_device *pld_device_info = pld_device->driver_priv;
 328
 329         if (!pld_device_info || !pld_device_info->tap)
 330                 return ERROR_FAIL;
 331
 332         hub->tap = pld_device_info->tap;
 333
 334         if (user_num == 1) {
 335                 hub->user_ir_code = USER1;
 336         } else if (user_num == 2) {
 337                 hub->user_ir_code = USER2;
 338         } else {
 339                 LOG_ERROR("lattice devices only have user register 1 & 2");
 340                 return ERROR_FAIL;
 341         }
 342         return ERROR_OK;
 343 }
 344
 345 static int lattice_connect_spi_to_jtag(struct pld_device *pld_device)
 346 {
 347         if (!pld_device)
 348                 return ERROR_FAIL;
 349
 350         struct lattice_pld_device *pld_device_info = pld_device->driver_priv;
 351
 352         int retval = lattice_check_device_family(pld_device_info);
 353         if (retval != ERROR_OK)
 354                 return retval;
 355
 356         if (pld_device_info->family == LATTICE_ECP2 || pld_device_info->family == LATTICE_ECP3)
 357                 return lattice_ecp2_3_connect_spi_to_jtag(pld_device_info);
 358         else if (pld_device_info->family == LATTICE_ECP5)
 359                 return lattice_ecp5_connect_spi_to_jtag(pld_device_info);
 360
 361         return ERROR_FAIL;
 362 }
 363
 364 static int lattice_disconnect_spi_from_jtag(struct pld_device *pld_device)
 365 {
 366         if (!pld_device)
 367                 return ERROR_FAIL;
 368
 369         struct lattice_pld_device *pld_device_info = pld_device->driver_priv;
 370
 371         int retval = lattice_check_device_family(pld_device_info);
 372         if (retval != ERROR_OK)
 373                 return retval;
 374
 375         if (pld_device_info->family == LATTICE_ECP2 || pld_device_info->family == LATTICE_ECP3)
 376                 return lattice_ecp2_3_disconnect_spi_from_jtag(pld_device_info);
 377         else if (pld_device_info->family == LATTICE_ECP5)
 378                 return lattice_ecp5_disconnect_spi_from_jtag(pld_device_info);
 379
 380         return ERROR_FAIL;
 381 }
 382
 383 static int lattice_get_stuff_bits(struct pld_device *pld_device, unsigned int *facing_read_bits,
 384                 unsigned int *trailing_write_bits)
 385 {
 386         if (!pld_device)
 387                 return ERROR_FAIL;
 388
 389         struct lattice_pld_device *pld_device_info = pld_device->driver_priv;
 390
 391         int retval = lattice_check_device_family(pld_device_info);
 392         if (retval != ERROR_OK)
 393                 return retval;
 394
 395         if (pld_device_info->family == LATTICE_ECP2 || pld_device_info->family == LATTICE_ECP3)
 396                 return lattice_ecp2_3_get_facing_read_bits(pld_device_info, facing_read_bits);
 397         else if (pld_device_info->family == LATTICE_ECP5)
 398                 return lattice_ecp5_get_facing_read_bits(pld_device_info, facing_read_bits);
 399
 400         return ERROR_FAIL;
 401 }
 402
 403 static int lattice_has_jtagspi_instruction(struct pld_device *device, bool *has_instruction)
 404 {
 405         *has_instruction = true;
 406         return ERROR_OK;
 407 }
 408
 409 PLD_CREATE_COMMAND_HANDLER(lattice_pld_create_command)
 410 {
 411         if (CMD_ARGC != 4 && CMD_ARGC != 6)
 412                 return ERROR_COMMAND_SYNTAX_ERROR;
 413
 414         if (strcmp(CMD_ARGV[2], "-chain-position") != 0)
 415                 return ERROR_COMMAND_SYNTAX_ERROR;
 416
 417         struct jtag_tap *tap = jtag_tap_by_string(CMD_ARGV[3]);
 418         if (!tap) {
 419                 command_print(CMD, "Tap: %s does not exist", CMD_ARGV[3]);
 420                 return ERROR_FAIL;
 421         }
 422
 423         /* id is not known yet -> postpone lattice_check_device_family() */
 424         enum lattice_family_e family = LATTICE_UNKNOWN;
 425         if (CMD_ARGC == 6) {
 426                 if (strcmp(CMD_ARGV[4], "-family") != 0)
 427                         return ERROR_COMMAND_SYNTAX_ERROR;
 428
 429                 if (strcasecmp(CMD_ARGV[5], "ecp2") == 0) {
 430                         family = LATTICE_ECP2;
 431                 } else if (strcasecmp(CMD_ARGV[5], "ecp3") == 0) {
 432                         family = LATTICE_ECP3;
 433                 } else if (strcasecmp(CMD_ARGV[5], "ecp5") == 0) {
 434                         family = LATTICE_ECP5;
 435                 } else if (strcasecmp(CMD_ARGV[5], "certus") == 0) {
 436                         family = LATTICE_CERTUS;
 437                 } else {
 438                         command_print(CMD, "unknown family");
 439                         return ERROR_FAIL;
 440                 }
 441         }
 442
 443         struct lattice_pld_device *lattice_device = malloc(sizeof(struct lattice_pld_device));
 444         if (!lattice_device) {
 445                 LOG_ERROR("Out of memory");
 446                 return ERROR_FAIL;
 447         }
 448
 449         lattice_device->tap = tap;
 450         lattice_device->family = family;
 451         lattice_device->preload_length = 0;
 452
 453         pld->driver_priv = lattice_device;
 454
 455         return ERROR_OK;
 456 }
 457
 458 COMMAND_HANDLER(lattice_read_usercode_register_command_handler)
 459 {
 460         uint32_t usercode;
 461
 462         if (CMD_ARGC != 1)
 463                 return ERROR_COMMAND_SYNTAX_ERROR;
 464
 465         struct pld_device *device = get_pld_device_by_name_or_numstr(CMD_ARGV[0]);
 466         if (!device) {
 467                 command_print(CMD, "pld device '#%s' is out of bounds or unknown", CMD_ARGV[0]);
 468                 return ERROR_FAIL;
 469         }
 470
 471         struct lattice_pld_device *lattice_device = device->driver_priv;
 472         if (!lattice_device)
 473                 return ERROR_FAIL;
 474
 475         int retval = lattice_check_device_family(lattice_device);
 476         if (retval != ERROR_OK)
 477                 return retval;
 478
 479         retval = lattice_read_usercode(lattice_device, &usercode, 0x0);
 480         if (retval == ERROR_OK)
 481                 command_print(CMD, "0x%8.8" PRIx32, usercode);
 482
 483         return retval;
 484 }
 485
 486 COMMAND_HANDLER(lattice_set_preload_command_handler)
 487 {
 488         unsigned int preload_length;
 489
 490         if (CMD_ARGC != 2)
 491                 return ERROR_COMMAND_SYNTAX_ERROR;
 492
 493         struct pld_device *device = get_pld_device_by_name_or_numstr(CMD_ARGV[0]);
 494         if (!device) {
 495                 command_print(CMD, "pld device '#%s' is out of bounds or unknown", CMD_ARGV[0]);
 496                 return ERROR_FAIL;
 497         }
 498
 499         COMMAND_PARSE_NUMBER(uint, CMD_ARGV[1], preload_length);
 500
 501         struct lattice_pld_device *lattice_device = device->driver_priv;
 502
 503         if (!lattice_device)
 504                 return ERROR_FAIL;
 505
 506         lattice_device->preload_length = preload_length;
 507
 508         return ERROR_OK;
 509 }
 510
 511 COMMAND_HANDLER(lattice_write_usercode_register_command_handler)
 512 {
 513         uint32_t usercode;
 514
 515         if (CMD_ARGC != 2)
 516                 return ERROR_COMMAND_SYNTAX_ERROR;
 517
 518         struct pld_device *device = get_pld_device_by_name_or_numstr(CMD_ARGV[0]);
 519         if (!device) {
 520                 command_print(CMD, "pld device '#%s' is out of bounds or unknown", CMD_ARGV[0]);
 521                 return ERROR_FAIL;
 522         }
 523
 524         COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], usercode);
 525
 526         struct lattice_pld_device *lattice_device = device->driver_priv;
 527         if (!lattice_device)
 528                 return ERROR_FAIL;
 529
 530         int retval = lattice_check_device_family(lattice_device);
 531         if (retval != ERROR_OK)
 532                 return retval;
 533
 534         return lattice_write_usercode(lattice_device, usercode);
 535 }
 536
 537 COMMAND_HANDLER(lattice_read_status_command_handler)
 538 {
 539         if (CMD_ARGC != 1)
 540                 return ERROR_COMMAND_SYNTAX_ERROR;
 541
 542         struct pld_device *device = get_pld_device_by_name_or_numstr(CMD_ARGV[0]);
 543         if (!device) {
 544                 command_print(CMD, "pld device '#%s' is out of bounds or unknown", CMD_ARGV[0]);
 545                 return ERROR_FAIL;
 546         }
 547
 548         struct lattice_pld_device *lattice_device = device->driver_priv;
 549         if (!lattice_device)
 550                 return ERROR_FAIL;
 551
 552         int retval = lattice_check_device_family(lattice_device);
 553         if (retval != ERROR_OK)
 554                 return retval;
 555
 556         if (lattice_device->family == LATTICE_CERTUS) {
 557                 uint64_t status;
 558                 retval = lattice_read_status_u64(lattice_device, &status, 0x0);
 559                 if (retval == ERROR_OK)
 560                         command_print(CMD, "0x%016" PRIx64, status);
 561         } else {
 562                 uint32_t status;
 563                 const bool do_idle = lattice_device->family == LATTICE_ECP5;
 564                 retval = lattice_read_status_u32(lattice_device, &status, 0x0, do_idle);
 565                 if (retval == ERROR_OK)
 566                         command_print(CMD, "0x%8.8" PRIx32, status);
 567         }
 568
 569         return retval;
 570 }
 571
 572 static const struct command_registration lattice_exec_command_handlers[] = {
 573         {
 574                 .name = "read_status",
 575                 .mode = COMMAND_EXEC,
 576                 .handler = lattice_read_status_command_handler,
 577                 .help = "reading status register from FPGA",
 578                 .usage = "pld_name",
 579         }, {
 580                 .name = "read_user",
 581                 .mode = COMMAND_EXEC,
 582                 .handler = lattice_read_usercode_register_command_handler,
 583                 .help = "reading usercode register from FPGA",
 584                 .usage = "pld_name",
 585         }, {
 586                 .name = "write_user",
 587                 .mode = COMMAND_EXEC,
 588                 .handler = lattice_write_usercode_register_command_handler,
 589                 .help = "writing usercode register to FPGA",
 590                 .usage = "pld_name value",
 591         }, {
 592                 .name = "set_preload",
 593                 .mode = COMMAND_ANY,
 594                 .handler = lattice_set_preload_command_handler,
 595                 .help = "set length for preload (device specific)",
 596                 .usage = "pld_name value",
 597         },
 598         COMMAND_REGISTRATION_DONE
 599 };
 600
 601 static const struct command_registration lattice_command_handler[] = {
 602         {
 603                 .name = "lattice",
 604                 .mode = COMMAND_ANY,
 605                 .help = "lattice specific commands",
 606                 .usage = "",
 607                 .chain = lattice_exec_command_handlers,
 608         },
 609         COMMAND_REGISTRATION_DONE
 610 };
 611
 612 struct pld_driver lattice_pld = {
 613         .name = "lattice",
 614         .commands = lattice_command_handler,
 615         .pld_create_command = &lattice_pld_create_command,
 616         .load = &lattice_load_command,
 617         .get_ipdbg_hub = lattice_get_ipdbg_hub,
 618         .has_jtagspi_instruction = lattice_has_jtagspi_instruction,
 619         .connect_spi_to_jtag = lattice_connect_spi_to_jtag,
 620         .disconnect_spi_from_jtag = lattice_disconnect_spi_from_jtag,
 621         .get_stuff_bits = lattice_get_stuff_bits,
 622 };