src/jtag/zy1000/zy1000.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2010 by Øyvind Harboe                              *
   3  *                                                                         *
   4  *   This program is free software; you can redistribute it and/or modify  *
   5  *   it under the terms of the GNU General Public License as published by  *
   6  *   the Free Software Foundation; either version 2 of the License, or     *
   7  *   (at your option) any later version.                                   *
   8  *                                                                         *
   9  *   This program is distributed in the hope that it will be useful,       *
  10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  12  *   GNU General Public License for more details.                          *
  13  *                                                                         *
  14  *   You should have received a copy of the GNU General Public License     *
  15  *   along with this program; if not, write to the                         *
  16  *   Free Software Foundation, Inc.,                                       *
  17  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  18  ***************************************************************************/
  19
  20 /* This file supports the zy1000 debugger: http://www.zylin.com/zy1000.html
  21  *
  22  * The zy1000 is a standalone debugger that has a web interface and
  23  * requires no drivers on the developer host as all communication
  24  * is via TCP/IP. The zy1000 gets it performance(~400-700kBytes/s
  25  * DCC downloads @ 16MHz target) as it has an FPGA to hardware
  26  * accelerate the JTAG commands, while offering *very* low latency
  27  * between OpenOCD and the FPGA registers.
  28  *
  29  * The disadvantage of the zy1000 is that it has a feeble CPU compared to
  30  * a PC(ca. 50-500 DMIPS depending on how one counts it), whereas a PC
  31  * is on the order of 10000 DMIPS(i.e. at a factor of 20-200).
  32  *
  33  * The zy1000 revc hardware is using an Altera Nios CPU, whereas the
  34  * revb is using ARM7 + Xilinx.
  35  *
  36  * See Zylin web pages or contact Zylin for more information.
  37  *
  38  * The reason this code is in OpenOCD rather than OpenOCD linked with the
  39  * ZY1000 code is that OpenOCD is the long road towards getting
  40  * libopenocd into place. libopenocd will support both low performance,
  41  * low latency systems(embedded) and high performance high latency
  42  * systems(PCs).
  43  */
  44 #ifdef HAVE_CONFIG_H
  45 #include "config.h"
  46 #endif
  47
  48 #include <target/embeddedice.h>
  49 #include <jtag/minidriver.h>
  50 #include <jtag/interface.h>
  51 #include <time.h>
  52 #include <helper/time_support.h>
  53
  54 #include <netinet/tcp.h>
  55
  56 #if BUILD_ECOSBOARD
  57 #include "zy1000_version.h"
  58
  59 #include <cyg/hal/hal_io.h>             // low level i/o
  60 #include <cyg/hal/hal_diag.h>
  61
  62 #ifdef CYGPKG_HAL_NIOS2
  63 #include <cyg/hal/io.h>
  64 #include <cyg/firmwareutil/firmwareutil.h>
  65 #endif
  66
  67 #define ZYLIN_VERSION GIT_ZY1000_VERSION
  68 #define ZYLIN_DATE __DATE__
  69 #define ZYLIN_TIME __TIME__
  70 #define ZYLIN_OPENOCD GIT_OPENOCD_VERSION
  71 #define ZYLIN_OPENOCD_VERSION "ZY1000 " ZYLIN_VERSION " " ZYLIN_DATE
  72
  73 #endif
  74
  75
  76 /* The software needs to check if it's in RCLK mode or not */
  77 static bool zy1000_rclk = false;
  78
  79 static int zy1000_khz(int khz, int *jtag_speed)
  80 {
  81         if (khz == 0)
  82         {
  83                 *jtag_speed = 0;
  84         }
  85         else
  86         {
  87                 *jtag_speed = 64000/khz;
  88         }
  89         return ERROR_OK;
  90 }
  91
  92 static int zy1000_speed_div(int speed, int *khz)
  93 {
  94         if (speed == 0)
  95         {
  96                 *khz = 0;
  97         }
  98         else
  99         {
 100                 *khz = 64000/speed;
 101         }
 102
 103         return ERROR_OK;
 104 }
 105
 106 static bool readPowerDropout(void)
 107 {
 108         uint32_t state;
 109         // sample and clear power dropout
 110         ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x80);
 111         ZY1000_PEEK(ZY1000_JTAG_BASE + 0x10, state);
 112         bool powerDropout;
 113         powerDropout = (state & 0x80) != 0;
 114         return powerDropout;
 115 }
 116
 117
 118 static bool readSRST(void)
 119 {
 120         uint32_t state;
 121         // sample and clear SRST sensing
 122         ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x00000040);
 123         ZY1000_PEEK(ZY1000_JTAG_BASE + 0x10, state);
 124         bool srstAsserted;
 125         srstAsserted = (state & 0x40) != 0;
 126         return srstAsserted;
 127 }
 128
 129 static int zy1000_srst_asserted(int *srst_asserted)
 130 {
 131         *srst_asserted = readSRST();
 132         return ERROR_OK;
 133 }
 134
 135 static int zy1000_power_dropout(int *dropout)
 136 {
 137         *dropout = readPowerDropout();
 138         return ERROR_OK;
 139 }
 140
 141 void zy1000_reset(int trst, int srst)
 142 {
 143         LOG_DEBUG("zy1000 trst=%d, srst=%d", trst, srst);
 144
 145         /* flush the JTAG FIFO. Not flushing the queue before messing with
 146          * reset has such interesting bugs as causing hard to reproduce
 147          * RCLK bugs as RCLK will stop responding when TRST is asserted
 148          */
 149         waitIdle();
 150
 151         if (!srst)
 152         {
 153                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x00000001);
 154         }
 155         else
 156         {
 157                 /* Danger!!! if clk != 0 when in
 158                  * idle in TAP_IDLE, reset halt on str912 will fail.
 159                  */
 160                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x00000001);
 161         }
 162
 163         if (!trst)
 164         {
 165                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x00000002);
 166         }
 167         else
 168         {
 169                 /* assert reset */
 170                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x00000002);
 171         }
 172
 173         if (trst||(srst && (jtag_get_reset_config() & RESET_SRST_PULLS_TRST)))
 174         {
 175                 /* we're now in the RESET state until trst is deasserted */
 176                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x20, TAP_RESET);
 177         } else
 178         {
 179                 /* We'll get RCLK failure when we assert TRST, so clear any false positives here */
 180                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x400);
 181         }
 182
 183         /* wait for srst to float back up */
 184         if ((!srst && ((jtag_get_reset_config() & RESET_TRST_PULLS_SRST) == 0))||
 185                 (!srst && !trst && (jtag_get_reset_config() & RESET_TRST_PULLS_SRST)))
 186         {
 187                 bool first = true;
 188                 long long start = 0;
 189                 long total = 0;
 190                 for (;;)
 191                 {
 192                         // We don't want to sense our own reset, so we clear here.
 193                         // There is of course a timing hole where we could loose
 194                         // a "real" reset.
 195                         if (!readSRST())
 196                         {
 197                                 if (total > 1)
 198                                 {
 199                                   LOG_USER("SRST took %dms to deassert", (int)total);
 200                                 }
 201                                 break;
 202                         }
 203
 204                         if (first)
 205                         {
 206                             first = false;
 207                             start = timeval_ms();
 208                         }
 209
 210                         total = timeval_ms() - start;
 211
 212                         keep_alive();
 213
 214                         if (total > 5000)
 215                         {
 216                                 LOG_ERROR("SRST took too long to deassert: %dms", (int)total);
 217                             break;
 218                         }
 219                 }
 220
 221         }
 222 }
 223
 224 int zy1000_speed(int speed)
 225 {
 226         /* flush JTAG master FIFO before setting speed */
 227         waitIdle();
 228
 229         zy1000_rclk = false;
 230
 231         if (speed == 0)
 232         {
 233                 /*0 means RCLK*/
 234                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x100);
 235                 zy1000_rclk = true;
 236                 LOG_DEBUG("jtag_speed using RCLK");
 237         }
 238         else
 239         {
 240                 if (speed > 8190 || speed < 2)
 241                 {
 242                         LOG_USER("valid ZY1000 jtag_speed=[8190,2]. Divisor is 64MHz / even values between 8190-2, i.e. min 7814Hz, max 32MHz");
 243                         return ERROR_INVALID_ARGUMENTS;
 244                 }
 245
 246                 LOG_USER("jtag_speed %d => JTAG clk=%f", speed, 64.0/(float)speed);
 247                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x100);
 248                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x1c, speed&~1);
 249         }
 250         return ERROR_OK;
 251 }
 252
 253 static bool savePower;
 254
 255
 256 static void setPower(bool power)
 257 {
 258         savePower = power;
 259         if (power)
 260         {
 261                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x8);
 262         } else
 263         {
 264                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x8);
 265         }
 266 }
 267
 268 COMMAND_HANDLER(handle_power_command)
 269 {
 270         switch (CMD_ARGC)
 271         {
 272         case 1: {
 273                 bool enable;
 274                 COMMAND_PARSE_ON_OFF(CMD_ARGV[0], enable);
 275                 setPower(enable);
 276                 // fall through
 277         }
 278         case 0:
 279                 LOG_INFO("Target power %s", savePower ? "on" : "off");
 280                 break;
 281         default:
 282                 return ERROR_INVALID_ARGUMENTS;
 283         }
 284
 285         return ERROR_OK;
 286 }
 287
 288 #if !BUILD_ECOSBOARD
 289 static char *tcp_server = "notspecified";
 290 static int jim_zy1000_server(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 291 {
 292         if (argc != 2)
 293                 return JIM_ERR;
 294
 295         tcp_server = strdup(Jim_GetString(argv[1], NULL));
 296
 297         return JIM_OK;
 298 }
 299 #endif
 300
 301 #if BUILD_ECOSBOARD
 302 /* Give TELNET a way to find out what version this is */
 303 static int jim_zy1000_version(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 304 {
 305         if ((argc < 1) || (argc > 3))
 306                 return JIM_ERR;
 307         const char *version_str = NULL;
 308
 309         if (argc == 1)
 310         {
 311                 version_str = ZYLIN_OPENOCD_VERSION;
 312         } else
 313         {
 314                 const char *str = Jim_GetString(argv[1], NULL);
 315                 const char *str2 = NULL;
 316                 if (argc > 2)
 317                         str2 = Jim_GetString(argv[2], NULL);
 318                 if (strcmp("openocd", str) == 0)
 319                 {
 320                         version_str = ZYLIN_OPENOCD;
 321                 }
 322                 else if (strcmp("zy1000", str) == 0)
 323                 {
 324                         version_str = ZYLIN_VERSION;
 325                 }
 326                 else if (strcmp("date", str) == 0)
 327                 {
 328                         version_str = ZYLIN_DATE;
 329                 }
 330                 else if (strcmp("time", str) == 0)
 331                 {
 332                         version_str = ZYLIN_TIME;
 333                 }
 334                 else if (strcmp("pcb", str) == 0)
 335                 {
 336 #ifdef CYGPKG_HAL_NIOS2
 337                         version_str="c";
 338 #else
 339                         version_str="b";
 340 #endif
 341                 }
 342 #ifdef CYGPKG_HAL_NIOS2
 343                 else if (strcmp("fpga", str) == 0)
 344                 {
 345
 346                         /* return a list of 32 bit integers to describe the expected
 347                          * and actual FPGA
 348                          */
 349                         static char *fpga_id = "0x12345678 0x12345678 0x12345678 0x12345678";
 350                         uint32_t id, timestamp;
 351                         HAL_READ_UINT32(SYSID_BASE, id);
 352                         HAL_READ_UINT32(SYSID_BASE+4, timestamp);
 353                         sprintf(fpga_id, "0x%08x 0x%08x 0x%08x 0x%08x", id, timestamp, SYSID_ID, SYSID_TIMESTAMP);
 354                         version_str = fpga_id;
 355                         if ((argc>2) && (strcmp("time", str2) == 0))
 356                         {
 357                             time_t last_mod = timestamp;
 358                             char * t = ctime (&last_mod) ;
 359                             t[strlen(t)-1] = 0;
 360                             version_str = t;
 361                         }
 362                 }
 363 #endif
 364
 365                 else
 366                 {
 367                         return JIM_ERR;
 368                 }
 369         }
 370
 371         Jim_SetResult(interp, Jim_NewStringObj(interp, version_str, -1));
 372
 373         return JIM_OK;
 374 }
 375 #endif
 376
 377 #ifdef CYGPKG_HAL_NIOS2
 378
 379
 380 struct info_forward
 381 {
 382         void *data;
 383         struct cyg_upgrade_info *upgraded_file;
 384 };
 385
 386 static void report_info(void *data, const char * format, va_list args)
 387 {
 388         char *s = alloc_vprintf(format, args);
 389         LOG_USER_N("%s", s);
 390         free(s);
 391 }
 392
 393 struct cyg_upgrade_info firmware_info =
 394 {
 395                 (uint8_t *)0x84000000,
 396                 "/ram/firmware.phi",
 397                 "Firmware",
 398                 0x0300000,
 399                 0x1f00000 -
 400                 0x0300000,
 401                 "ZylinNiosFirmware\n",
 402                 report_info,
 403 };
 404
 405 static int jim_zy1000_writefirmware(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 406 {
 407         if (argc != 2)
 408                 return JIM_ERR;
 409
 410         int length;
 411         const char *str = Jim_GetString(argv[1], &length);
 412
 413         /* */
 414         int tmpFile;
 415         if ((tmpFile = open(firmware_info.file, O_RDWR | O_CREAT | O_TRUNC)) <= 0)
 416         {
 417                 return JIM_ERR;
 418         }
 419         bool success;
 420         success = write(tmpFile, str, length) == length;
 421         close(tmpFile);
 422         if (!success)
 423                 return JIM_ERR;
 424
 425         if (!cyg_firmware_upgrade(NULL, firmware_info))
 426                 return JIM_ERR;
 427
 428         return JIM_OK;
 429 }
 430 #endif
 431
 432 static int
 433 zylinjtag_Jim_Command_powerstatus(Jim_Interp *interp,
 434                                                                    int argc,
 435                 Jim_Obj * const *argv)
 436 {
 437         if (argc != 1)
 438         {
 439                 Jim_WrongNumArgs(interp, 1, argv, "powerstatus");
 440                 return JIM_ERR;
 441         }
 442
 443         bool dropout = readPowerDropout();
 444
 445         Jim_SetResult(interp, Jim_NewIntObj(interp, dropout));
 446
 447         return JIM_OK;
 448 }
 449
 450
 451
 452 int zy1000_quit(void)
 453 {
 454
 455         return ERROR_OK;
 456 }
 457
 458
 459
 460 int interface_jtag_execute_queue(void)
 461 {
 462         uint32_t empty;
 463
 464         waitIdle();
 465
 466         if (zy1000_rclk)
 467         {
 468                 /* Only check for errors when using RCLK to speed up
 469                  * jtag over TCP/IP
 470                  */
 471                 ZY1000_PEEK(ZY1000_JTAG_BASE + 0x10, empty);
 472                 /* clear JTAG error register */
 473                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x14, 0x400);
 474
 475                 if ((empty&0x400) != 0)
 476                 {
 477                         LOG_WARNING("RCLK timeout");
 478                         /* the error is informative only as we don't want to break the firmware if there
 479                          * is a false positive.
 480                          */
 481         //              return ERROR_FAIL;
 482                 }
 483         }
 484         return ERROR_OK;
 485 }
 486
 487
 488
 489
 490
 491 static uint32_t getShiftValue(void)
 492 {
 493         uint32_t value;
 494         waitIdle();
 495         ZY1000_PEEK(ZY1000_JTAG_BASE + 0xc, value);
 496         VERBOSE(LOG_INFO("getShiftValue %08x", value));
 497         return value;
 498 }
 499 #if 0
 500 static uint32_t getShiftValueFlip(void)
 501 {
 502         uint32_t value;
 503         waitIdle();
 504         ZY1000_PEEK(ZY1000_JTAG_BASE + 0x18, value);
 505         VERBOSE(LOG_INFO("getShiftValue %08x (flipped)", value));
 506         return value;
 507 }
 508 #endif
 509
 510 #if 0
 511 static void shiftValueInnerFlip(const tap_state_t state, const tap_state_t endState, int repeat, uint32_t value)
 512 {
 513         VERBOSE(LOG_INFO("shiftValueInner %s %s %d %08x (flipped)", tap_state_name(state), tap_state_name(endState), repeat, value));
 514         uint32_t a,b;
 515         a = state;
 516         b = endState;
 517         ZY1000_POKE(ZY1000_JTAG_BASE + 0xc, value);
 518         ZY1000_POKE(ZY1000_JTAG_BASE + 0x8, (1 << 15) | (repeat << 8) | (a << 4) | b);
 519         VERBOSE(getShiftValueFlip());
 520 }
 521 #endif
 522
 523 // here we shuffle N bits out/in
 524 static __inline void scanBits(const uint8_t *out_value, uint8_t *in_value, int num_bits, bool pause_now, tap_state_t shiftState, tap_state_t end_state)
 525 {
 526         tap_state_t pause_state = shiftState;
 527         for (int j = 0; j < num_bits; j += 32)
 528         {
 529                 int k = num_bits - j;
 530                 if (k > 32)
 531                 {
 532                         k = 32;
 533                         /* we have more to shift out */
 534                 } else if (pause_now)
 535                 {
 536                         /* this was the last to shift out this time */
 537                         pause_state = end_state;
 538                 }
 539
 540                 // we have (num_bits + 7)/8 bytes of bits to toggle out.
 541                 // bits are pushed out LSB to MSB
 542                 uint32_t value;
 543                 value = 0;
 544                 if (out_value != NULL)
 545                 {
 546                         for (int l = 0; l < k; l += 8)
 547                         {
 548                                 value|=out_value[(j + l)/8]<<l;
 549                         }
 550                 }
 551                 /* mask away unused bits for easier debugging */
 552                 if (k < 32)
 553                 {
 554                         value&=~(((uint32_t)0xffffffff) << k);
 555                 } else
 556                 {
 557                         /* Shifting by >= 32 is not defined by the C standard
 558                          * and will in fact shift by &0x1f bits on nios */
 559                 }
 560
 561                 shiftValueInner(shiftState, pause_state, k, value);
 562
 563                 if (in_value != NULL)
 564                 {
 565                         // data in, LSB to MSB
 566                         value = getShiftValue();
 567                         // we're shifting in data to MSB, shift data to be aligned for returning the value
 568                         value >>= 32-k;
 569
 570                         for (int l = 0; l < k; l += 8)
 571                         {
 572                                 in_value[(j + l)/8]=(value >> l)&0xff;
 573                         }
 574                 }
 575         }
 576 }
 577
 578 static __inline void scanFields(int num_fields, const struct scan_field *fields, tap_state_t shiftState, tap_state_t end_state)
 579 {
 580         for (int i = 0; i < num_fields; i++)
 581         {
 582                 scanBits(fields[i].out_value,
 583                                 fields[i].in_value,
 584                                 fields[i].num_bits,
 585                                 (i == num_fields-1),
 586                                 shiftState,
 587                                 end_state);
 588         }
 589 }
 590
 591 int interface_jtag_add_ir_scan(struct jtag_tap *active, const struct scan_field *fields, tap_state_t state)
 592 {
 593         int scan_size = 0;
 594         struct jtag_tap *tap, *nextTap;
 595         tap_state_t pause_state = TAP_IRSHIFT;
 596
 597         for (tap = jtag_tap_next_enabled(NULL); tap!= NULL; tap = nextTap)
 598         {
 599                 nextTap = jtag_tap_next_enabled(tap);
 600                 if (nextTap==NULL)
 601                 {
 602                         pause_state = state;
 603                 }
 604                 scan_size = tap->ir_length;
 605
 606                 /* search the list */
 607                 if (tap == active)
 608                 {
 609                         scanFields(1, fields, TAP_IRSHIFT, pause_state);
 610                         /* update device information */
 611                         buf_cpy(fields[0].out_value, tap->cur_instr, scan_size);
 612
 613                         tap->bypass = 0;
 614                 } else
 615                 {
 616                         /* if a device isn't listed, set it to BYPASS */
 617                         assert(scan_size <= 32);
 618                         shiftValueInner(TAP_IRSHIFT, pause_state, scan_size, 0xffffffff);
 619
 620                         tap->bypass = 1;
 621                 }
 622         }
 623
 624         return ERROR_OK;
 625 }
 626
 627
 628
 629
 630
 631 int interface_jtag_add_plain_ir_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t state)
 632 {
 633         scanBits(out_bits, in_bits, num_bits, true, TAP_IRSHIFT, state);
 634         return ERROR_OK;
 635 }
 636
 637 int interface_jtag_add_dr_scan(struct jtag_tap *active, int num_fields, const struct scan_field *fields, tap_state_t state)
 638 {
 639         struct jtag_tap *tap, *nextTap;
 640         tap_state_t pause_state = TAP_DRSHIFT;
 641         for (tap = jtag_tap_next_enabled(NULL); tap!= NULL; tap = nextTap)
 642         {
 643                 nextTap = jtag_tap_next_enabled(tap);
 644                 if (nextTap==NULL)
 645                 {
 646                         pause_state = state;
 647                 }
 648
 649                 /* Find a range of fields to write to this tap */
 650                 if (tap == active)
 651                 {
 652                         assert(!tap->bypass);
 653
 654                         scanFields(num_fields, fields, TAP_DRSHIFT, pause_state);
 655                 } else
 656                 {
 657                         /* Shift out a 0 for disabled tap's */
 658                         assert(tap->bypass);
 659                         shiftValueInner(TAP_DRSHIFT, pause_state, 1, 0);
 660                 }
 661         }
 662         return ERROR_OK;
 663 }
 664
 665 int interface_jtag_add_plain_dr_scan(int num_bits, const uint8_t *out_bits, uint8_t *in_bits, tap_state_t state)
 666 {
 667         scanBits(out_bits, in_bits, num_bits, true, TAP_DRSHIFT, state);
 668         return ERROR_OK;
 669 }
 670
 671 int interface_jtag_add_tlr()
 672 {
 673         setCurrentState(TAP_RESET);
 674         return ERROR_OK;
 675 }
 676
 677
 678 int interface_jtag_add_reset(int req_trst, int req_srst)
 679 {
 680         zy1000_reset(req_trst, req_srst);
 681         return ERROR_OK;
 682 }
 683
 684 static int zy1000_jtag_add_clocks(int num_cycles, tap_state_t state, tap_state_t clockstate)
 685 {
 686         /* num_cycles can be 0 */
 687         setCurrentState(clockstate);
 688
 689         /* execute num_cycles, 32 at the time. */
 690         int i;
 691         for (i = 0; i < num_cycles; i += 32)
 692         {
 693                 int num;
 694                 num = 32;
 695                 if (num_cycles-i < num)
 696                 {
 697                         num = num_cycles-i;
 698                 }
 699                 shiftValueInner(clockstate, clockstate, num, 0);
 700         }
 701
 702 #if !TEST_MANUAL()
 703         /* finish in end_state */
 704         setCurrentState(state);
 705 #else
 706         tap_state_t t = TAP_IDLE;
 707         /* test manual drive code on any target */
 708         int tms;
 709         uint8_t tms_scan = tap_get_tms_path(t, state);
 710         int tms_count = tap_get_tms_path_len(tap_get_state(), tap_get_end_state());
 711
 712         for (i = 0; i < tms_count; i++)
 713         {
 714                 tms = (tms_scan >> i) & 1;
 715                 waitIdle();
 716                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x28,  tms);
 717         }
 718         waitIdle();
 719         ZY1000_POKE(ZY1000_JTAG_BASE + 0x20, state);
 720 #endif
 721
 722         return ERROR_OK;
 723 }
 724
 725 int interface_jtag_add_runtest(int num_cycles, tap_state_t state)
 726 {
 727         return zy1000_jtag_add_clocks(num_cycles, state, TAP_IDLE);
 728 }
 729
 730 int interface_jtag_add_clocks(int num_cycles)
 731 {
 732         return zy1000_jtag_add_clocks(num_cycles, cmd_queue_cur_state, cmd_queue_cur_state);
 733 }
 734
 735 int interface_add_tms_seq(unsigned num_bits, const uint8_t *seq, enum tap_state state)
 736 {
 737         /*wait for the fifo to be empty*/
 738         waitIdle();
 739
 740         for (unsigned i = 0; i < num_bits; i++)
 741         {
 742                 int tms;
 743
 744                 if (((seq[i/8] >> (i % 8)) & 1) == 0)
 745                 {
 746                         tms = 0;
 747                 }
 748                 else
 749                 {
 750                         tms = 1;
 751                 }
 752
 753                 waitIdle();
 754                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, tms);
 755         }
 756
 757         waitIdle();
 758         if (state != TAP_INVALID)
 759         {
 760                 ZY1000_POKE(ZY1000_JTAG_BASE + 0x20, state);
 761         } else
 762         {
 763                 /* this would be normal if we are switching to SWD mode */
 764         }
 765         return ERROR_OK;
 766 }
 767
 768 int interface_jtag_add_pathmove(int num_states, const tap_state_t *path)
 769 {
 770         int state_count;
 771         int tms = 0;
 772
 773         state_count = 0;
 774
 775         tap_state_t cur_state = cmd_queue_cur_state;
 776
 777         uint8_t seq[16];
 778         memset(seq, 0, sizeof(seq));
 779         assert(num_states < (int)((sizeof(seq) * 8)));
 780
 781         while (num_states)
 782         {
 783                 if (tap_state_transition(cur_state, false) == path[state_count])
 784                 {
 785                         tms = 0;
 786                 }
 787                 else if (tap_state_transition(cur_state, true) == path[state_count])
 788                 {
 789                         tms = 1;
 790                 }
 791                 else
 792                 {
 793                         LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_name(cur_state), tap_state_name(path[state_count]));
 794                         exit(-1);
 795                 }
 796
 797                 seq[state_count/8] = seq[state_count/8] | (tms << (state_count % 8));
 798
 799                 cur_state = path[state_count];
 800                 state_count++;
 801                 num_states--;
 802         }
 803
 804         return interface_add_tms_seq(state_count, seq, cur_state);
 805 }
 806
 807 static void jtag_pre_post_bits(struct jtag_tap *tap, int *pre, int *post)
 808 {
 809         /* bypass bits before and after */
 810         int pre_bits = 0;
 811         int post_bits = 0;
 812
 813         bool found = false;
 814         struct jtag_tap *cur_tap, *nextTap;
 815         for (cur_tap = jtag_tap_next_enabled(NULL); cur_tap!= NULL; cur_tap = nextTap)
 816         {
 817                 nextTap = jtag_tap_next_enabled(cur_tap);
 818                 if (cur_tap == tap)
 819                 {
 820                         found = true;
 821                 } else
 822                 {
 823                         if (found)
 824                         {
 825                                 post_bits++;
 826                         } else
 827                         {
 828                                 pre_bits++;
 829                         }
 830                 }
 831         }
 832         *pre = pre_bits;
 833         *post = post_bits;
 834 }
 835
 836 /*
 837         static const int embeddedice_num_bits[] = {32, 6};
 838         uint32_t values[2];
 839
 840         values[0] = value;
 841         values[1] = (1 << 5) | reg_addr;
 842
 843         jtag_add_dr_out(tap,
 844                         2,
 845                         embeddedice_num_bits,
 846                         values,
 847                         TAP_IDLE);
 848 */
 849
 850 void embeddedice_write_dcc(struct jtag_tap *tap, int reg_addr, uint8_t *buffer, int little, int count)
 851 {
 852 #if 0
 853         int i;
 854         for (i = 0; i < count; i++)
 855         {
 856                 embeddedice_write_reg_inner(tap, reg_addr, fast_target_buffer_get_u32(buffer, little));
 857                 buffer += 4;
 858         }
 859 #else
 860         int pre_bits;
 861         int post_bits;
 862         jtag_pre_post_bits(tap, &pre_bits, &post_bits);
 863
 864         if ((pre_bits > 32) || (post_bits + 6 > 32))
 865         {
 866                 int i;
 867                 for (i = 0; i < count; i++)
 868                 {
 869                         embeddedice_write_reg_inner(tap, reg_addr, fast_target_buffer_get_u32(buffer, little));
 870                         buffer += 4;
 871                 }
 872         } else
 873         {
 874                 int i;
 875                 for (i = 0; i < count; i++)
 876                 {
 877                         /* Fewer pokes means we get to use the FIFO more efficiently */
 878                         shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, pre_bits, 0);
 879                         shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, 32, fast_target_buffer_get_u32(buffer, little));
 880                         /* Danger! here we need to exit into the TAP_IDLE state to make
 881                          * DCC pick up this value.
 882                          */
 883                         shiftValueInner(TAP_DRSHIFT, TAP_IDLE, 6 + post_bits, (reg_addr | (1 << 5)));
 884                         buffer += 4;
 885                 }
 886         }
 887 #endif
 888 }
 889
 890
 891
 892 int arm11_run_instr_data_to_core_noack_inner(struct jtag_tap * tap, uint32_t opcode, uint32_t * data, size_t count)
 893 {
 894         /* bypass bits before and after */
 895         int pre_bits;
 896         int post_bits;
 897         jtag_pre_post_bits(tap, &pre_bits, &post_bits);
 898         post_bits+=2;
 899
 900         if ((pre_bits > 32) || (post_bits > 32))
 901         {
 902                 int arm11_run_instr_data_to_core_noack_inner_default(struct jtag_tap * tap, uint32_t opcode, uint32_t * data, size_t count);
 903                 return arm11_run_instr_data_to_core_noack_inner_default(tap, opcode, data, count);
 904         } else
 905         {
 906                 static const int bits[] = {32, 2};
 907                 uint32_t values[] = {0, 0};
 908
 909                 /* FIX!!!!!! the target_write_memory() API started this nasty problem
 910                  * with unaligned uint32_t * pointers... */
 911                 const uint8_t *t = (const uint8_t *)data;
 912
 913                 while (--count > 0)
 914                 {
 915 #if 1
 916                         /* Danger! This code doesn't update cmd_queue_cur_state, so
 917                          * invoking jtag_add_pathmove() before jtag_add_dr_out() after
 918                          * this loop would fail!
 919                          */
 920                         shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, pre_bits, 0);
 921
 922                         uint32_t value;
 923                         value = *t++;
 924                         value |= (*t++<<8);
 925                         value |= (*t++<<16);
 926                         value |= (*t++<<24);
 927
 928                         shiftValueInner(TAP_DRSHIFT, TAP_DRSHIFT, 32, value);
 929                         /* minimum 2 bits */
 930                         shiftValueInner(TAP_DRSHIFT, TAP_DRPAUSE, post_bits, 0);
 931
 932                         /* copy & paste from arm11_dbgtap.c */
 933                         //TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
 934                         /* KLUDGE! we have to flush the fifo or the Nios CPU locks up.
 935                          * This is probably a bug in the Avalon bus(cross clocking bridge?)
 936                          * or in the jtag registers module.
 937                          */
 938                         waitIdle();
 939                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
 940                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
 941                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
 942                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
 943                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
 944                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 1);
 945                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
 946                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x28, 0);
 947                         /* we don't have to wait for the queue to empty here */
 948                         ZY1000_POKE(ZY1000_JTAG_BASE + 0x20, TAP_DRSHIFT);
 949                         waitIdle();
 950 #else
 951                         static const tap_state_t arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay[] =
 952                         {
 953                                 TAP_DREXIT2, TAP_DRUPDATE, TAP_IDLE, TAP_IDLE, TAP_IDLE, TAP_DRSELECT, TAP_DRCAPTURE, TAP_DRSHIFT
 954                         };
 955
 956                         values[0] = *t++;
 957                         values[0] |= (*t++<<8);
 958                         values[0] |= (*t++<<16);
 959                         values[0] |= (*t++<<24);
 960
 961                         jtag_add_dr_out(tap,
 962                                 2,
 963                                 bits,
 964                                 values,
 965                                 TAP_IDLE);
 966
 967                         jtag_add_pathmove(ARRAY_SIZE(arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay),
 968                                 arm11_MOVE_DRPAUSE_IDLE_DRPAUSE_with_delay);
 969 #endif
 970                 }
 971
 972                 values[0] = *t++;
 973                 values[0] |= (*t++<<8);
 974                 values[0] |= (*t++<<16);
 975                 values[0] |= (*t++<<24);
 976
 977                 /* This will happen on the last iteration updating cmd_queue_cur_state
 978                  * so we don't have to track it during the common code path
 979                  */
 980                 jtag_add_dr_out(tap,
 981                         2,
 982                         bits,
 983                         values,
 984                         TAP_IDLE);
 985
 986                 return jtag_execute_queue();
 987         }
 988 }
 989
 990
 991 static const struct command_registration zy1000_commands[] = {
 992         {
 993                 .name = "power",
 994                 .handler = handle_power_command,
 995                 .mode = COMMAND_ANY,
 996                 .help = "Turn power switch to target on/off. "
 997                         "With no arguments, prints status.",
 998                 .usage = "('on'|'off)",
 999         },
1000 #if BUILD_ECOSBOARD
1001         {
1002                 .name = "zy1000_version",
1003                 .mode = COMMAND_ANY,
1004                 .jim_handler = jim_zy1000_version,
1005                 .help = "Print version info for zy1000.",
1006                 .usage = "['openocd'|'zy1000'|'date'|'time'|'pcb'|'fpga']",
1007         },
1008 #else
1009         {
1010                 .name = "zy1000_server",
1011                 .mode = COMMAND_ANY,
1012                 .jim_handler = jim_zy1000_server,
1013                 .help = "Tcpip address for ZY1000 server.",
1014                 .usage = "address",
1015         },
1016 #endif
1017         {
1018                 .name = "powerstatus",
1019                 .mode = COMMAND_ANY,
1020                 .jim_handler = zylinjtag_Jim_Command_powerstatus,
1021                 .help = "Returns power status of target",
1022         },
1023 #ifdef CYGPKG_HAL_NIOS2
1024         {
1025                 .name = "updatezy1000firmware",
1026                 .mode = COMMAND_ANY,
1027                 .jim_handler = jim_zy1000_writefirmware,
1028                 .help = "writes firmware to flash",
1029                 /* .usage = "some_string", */
1030         },
1031 #endif
1032         COMMAND_REGISTRATION_DONE
1033 };
1034
1035
1036 static int tcp_ip = -1;
1037
1038 /* Write large packets if we can */
1039 static size_t out_pos;
1040 static uint8_t out_buffer[16384];
1041 static size_t in_pos;
1042 static size_t in_write;
1043 static uint8_t in_buffer[16384];
1044
1045 static bool flush_writes(void)
1046 {
1047         bool ok = (write(tcp_ip, out_buffer, out_pos) == (int)out_pos);
1048         out_pos = 0;
1049         return ok;
1050 }
1051
1052 static bool writeLong(uint32_t l)
1053 {
1054         int i;
1055         for (i = 0; i < 4; i++)
1056         {
1057                 uint8_t c = (l >> (i*8))&0xff;
1058                 out_buffer[out_pos++] = c;
1059                 if (out_pos >= sizeof(out_buffer))
1060                 {
1061                         if (!flush_writes())
1062                         {
1063                                 return false;
1064                         }
1065                 }
1066         }
1067         return true;
1068 }
1069
1070 static bool readLong(uint32_t *out_data)
1071 {
1072         if (out_pos > 0)
1073         {
1074                 if (!flush_writes())
1075                 {
1076                         return false;
1077                 }
1078         }
1079
1080         uint32_t data = 0;
1081         int i;
1082         for (i = 0; i < 4; i++)
1083         {
1084                 uint8_t c;
1085                 if (in_pos == in_write)
1086                 {
1087                         /* read more */
1088                         int t;
1089                         t = read(tcp_ip, in_buffer, sizeof(in_buffer));
1090                         if (t < 1)
1091                         {
1092                                 return false;
1093                         }
1094                         in_write = (size_t) t;
1095                         in_pos = 0;
1096                 }
1097                 c = in_buffer[in_pos++];
1098
1099                 data |= (c << (i*8));
1100         }
1101         *out_data = data;
1102         return true;
1103 }
1104
1105 enum ZY1000_CMD
1106 {
1107         ZY1000_CMD_POKE = 0x0,
1108         ZY1000_CMD_PEEK = 0x8,
1109         ZY1000_CMD_SLEEP = 0x1,
1110 };
1111
1112
1113 #if !BUILD_ECOSBOARD
1114
1115 #include <sys/socket.h> /* for socket(), connect(), send(), and recv() */
1116 #include <arpa/inet.h>  /* for sockaddr_in and inet_addr() */
1117
1118 /* We initialize this late since we need to know the server address
1119  * first.
1120  */
1121 static void tcpip_open(void)
1122 {
1123         if (tcp_ip >= 0)
1124                 return;
1125
1126         struct sockaddr_in echoServAddr; /* Echo server address */
1127
1128         /* Create a reliable, stream socket using TCP */
1129         if ((tcp_ip = socket(PF_INET, SOCK_STREAM, IPPROTO_TCP)) < 0)
1130         {
1131                 fprintf(stderr, "Failed to connect to zy1000 server\n");
1132                 exit(-1);
1133         }
1134
1135         /* Construct the server address structure */
1136         memset(&echoServAddr, 0, sizeof(echoServAddr)); /* Zero out structure */
1137         echoServAddr.sin_family = AF_INET; /* Internet address family */
1138         echoServAddr.sin_addr.s_addr = inet_addr(tcp_server); /* Server IP address */
1139         echoServAddr.sin_port = htons(7777); /* Server port */
1140
1141         /* Establish the connection to the echo server */
1142         if (connect(tcp_ip, (struct sockaddr *) &echoServAddr, sizeof(echoServAddr)) < 0)
1143         {
1144                 fprintf(stderr, "Failed to connect to zy1000 server\n");
1145                 exit(-1);
1146         }
1147
1148         int flag = 1;
1149         setsockopt(tcp_ip,      /* socket affected */
1150                         IPPROTO_TCP,            /* set option at TCP level */
1151                         TCP_NODELAY,            /* name of option */
1152                         (char *)&flag,          /* the cast is historical cruft */
1153                         sizeof(int));           /* length of option value */
1154
1155 }
1156
1157
1158 /* send a poke */
1159 void zy1000_tcpout(uint32_t address, uint32_t data)
1160 {
1161         tcpip_open();
1162         if (!writeLong((ZY1000_CMD_POKE << 24) | address)||
1163                         !writeLong(data))
1164         {
1165                 fprintf(stderr, "Could not write to zy1000 server\n");
1166                 exit(-1);
1167         }
1168 }
1169
1170 uint32_t zy1000_tcpin(uint32_t address)
1171 {
1172         tcpip_open();
1173         uint32_t data;
1174         if (!writeLong((ZY1000_CMD_PEEK << 24) | address)||
1175                         !readLong(&data))
1176         {
1177                 fprintf(stderr, "Could not read from zy1000 server\n");
1178                 exit(-1);
1179         }
1180         return data;
1181 }
1182
1183 int interface_jtag_add_sleep(uint32_t us)
1184 {
1185         tcpip_open();
1186         if (!writeLong((ZY1000_CMD_SLEEP << 24))||
1187                         !writeLong(us))
1188         {
1189                 fprintf(stderr, "Could not read from zy1000 server\n");
1190                 exit(-1);
1191         }
1192         return ERROR_OK;
1193 }
1194
1195
1196 #endif
1197
1198 #if BUILD_ECOSBOARD
1199 static char tcpip_stack[2048];
1200 static cyg_thread tcpip_thread_object;
1201 static cyg_handle_t tcpip_thread_handle;
1202
1203 static char watchdog_stack[2048];
1204 static cyg_thread watchdog_thread_object;
1205 static cyg_handle_t watchdog_thread_handle;
1206
1207 /* Infinite loop peeking & poking */
1208 static void tcpipserver(void)
1209 {
1210         for (;;)
1211         {
1212                 uint32_t address;
1213                 if (!readLong(&address))
1214                         return;
1215                 enum ZY1000_CMD c = (address >> 24) & 0xff;
1216                 address &= 0xffffff;
1217                 switch (c)
1218                 {
1219                         case ZY1000_CMD_POKE:
1220                         {
1221                                 uint32_t data;
1222                                 if (!readLong(&data))
1223                                         return;
1224                                 address &= ~0x80000000;
1225                                 ZY1000_POKE(address + ZY1000_JTAG_BASE, data);
1226                                 break;
1227                         }
1228                         case ZY1000_CMD_PEEK:
1229                         {
1230                                 uint32_t data;
1231                                 ZY1000_PEEK(address + ZY1000_JTAG_BASE, data);
1232                                 if (!writeLong(data))
1233                                         return;
1234                                 break;
1235                         }
1236                         case ZY1000_CMD_SLEEP:
1237                         {
1238                                 uint32_t data;
1239                                 if (!readLong(&data))
1240                                         return;
1241                                 jtag_sleep(data);
1242                                 break;
1243                         }
1244                         default:
1245                                 return;
1246                 }
1247         }
1248 }
1249
1250
1251 static void tcpip_server(cyg_addrword_t data)
1252 {
1253         int so_reuseaddr_option = 1;
1254
1255         int fd;
1256         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
1257         {
1258                 LOG_ERROR("error creating socket: %s", strerror(errno));
1259                 exit(-1);
1260         }
1261
1262         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
1263                         sizeof(int));
1264
1265         struct sockaddr_in sin;
1266         unsigned int address_size;
1267         address_size = sizeof(sin);
1268         memset(&sin, 0, sizeof(sin));
1269         sin.sin_family = AF_INET;
1270         sin.sin_addr.s_addr = INADDR_ANY;
1271         sin.sin_port = htons(7777);
1272
1273         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
1274         {
1275                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
1276                 exit(-1);
1277         }
1278
1279         if (listen(fd, 1) == -1)
1280         {
1281                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
1282                 exit(-1);
1283         }
1284
1285
1286         for (;;)
1287         {
1288                 tcp_ip = accept(fd, (struct sockaddr *) &sin, &address_size);
1289                 if (tcp_ip < 0)
1290                 {
1291                         continue;
1292                 }
1293
1294                 int flag = 1;
1295                 setsockopt(tcp_ip,      /* socket affected */
1296                                 IPPROTO_TCP,            /* set option at TCP level */
1297                                 TCP_NODELAY,            /* name of option */
1298                                 (char *)&flag,          /* the cast is historical cruft */
1299                                 sizeof(int));           /* length of option value */
1300
1301                 bool save_poll = jtag_poll_get_enabled();
1302
1303                 /* polling will screw up the "connection" */
1304                 jtag_poll_set_enabled(false);
1305
1306                 tcpipserver();
1307
1308                 jtag_poll_set_enabled(save_poll);
1309
1310                 close(tcp_ip);
1311
1312         }
1313         close(fd);
1314
1315 }
1316
1317 #ifdef WATCHDOG_BASE
1318 /* If we connect to port 8888 we must send a char every 10s or the board resets itself */
1319 static void watchdog_server(cyg_addrword_t data)
1320 {
1321         int so_reuseaddr_option = 1;
1322
1323         int fd;
1324         if ((fd = socket(AF_INET, SOCK_STREAM, 0)) == -1)
1325         {
1326                 LOG_ERROR("error creating socket: %s", strerror(errno));
1327                 exit(-1);
1328         }
1329
1330         setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, (void*) &so_reuseaddr_option,
1331                         sizeof(int));
1332
1333         struct sockaddr_in sin;
1334         unsigned int address_size;
1335         address_size = sizeof(sin);
1336         memset(&sin, 0, sizeof(sin));
1337         sin.sin_family = AF_INET;
1338         sin.sin_addr.s_addr = INADDR_ANY;
1339         sin.sin_port = htons(8888);
1340
1341         if (bind(fd, (struct sockaddr *) &sin, sizeof(sin)) == -1)
1342         {
1343                 LOG_ERROR("couldn't bind to socket: %s", strerror(errno));
1344                 exit(-1);
1345         }
1346
1347         if (listen(fd, 1) == -1)
1348         {
1349                 LOG_ERROR("couldn't listen on socket: %s", strerror(errno));
1350                 exit(-1);
1351         }
1352
1353
1354         for (;;)
1355         {
1356                 int watchdog_ip = accept(fd, (struct sockaddr *) &sin, &address_size);
1357
1358                 /* Start watchdog, must be reset every 10 seconds. */
1359                 HAL_WRITE_UINT32(WATCHDOG_BASE + 4, 4);
1360
1361                 if (watchdog_ip < 0)
1362                 {
1363                         LOG_ERROR("couldn't open watchdog socket: %s", strerror(errno));
1364                         exit(-1);
1365                 }
1366
1367                 int flag = 1;
1368                 setsockopt(watchdog_ip, /* socket affected */
1369                                 IPPROTO_TCP,            /* set option at TCP level */
1370                                 TCP_NODELAY,            /* name of option */
1371                                 (char *)&flag,          /* the cast is historical cruft */
1372                                 sizeof(int));           /* length of option value */
1373
1374
1375                 char buf;
1376                 for (;;)
1377                 {
1378                         if (read(watchdog_ip, &buf, 1) == 1)
1379                         {
1380                                 /* Reset timer */
1381                                 HAL_WRITE_UINT32(WATCHDOG_BASE + 8, 0x1234);
1382                                 /* Echo so we can telnet in and see that resetting works */
1383                                 write(watchdog_ip, &buf, 1);
1384                         } else
1385                         {
1386                                 /* Stop tickling the watchdog, the CPU will reset in < 10 seconds
1387                                  * now.
1388                                  */
1389                                 return;
1390                         }
1391
1392                 }
1393
1394                 /* Never reached */
1395         }
1396 }
1397 #endif
1398
1399 int interface_jtag_add_sleep(uint32_t us)
1400 {
1401         jtag_sleep(us);
1402         return ERROR_OK;
1403 }
1404
1405 #endif
1406
1407
1408 int zy1000_init(void)
1409 {
1410 #if BUILD_ECOSBOARD
1411         LOG_USER("%s", ZYLIN_OPENOCD_VERSION);
1412 #endif
1413
1414         ZY1000_POKE(ZY1000_JTAG_BASE + 0x10, 0x30); // Turn on LED1 & LED2
1415
1416         setPower(true); // on by default
1417
1418
1419          /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */
1420         zy1000_reset(0, 0);
1421         zy1000_speed(jtag_get_speed());
1422
1423
1424 #if BUILD_ECOSBOARD
1425         cyg_thread_create(1, tcpip_server, (cyg_addrword_t) 0, "tcip/ip server",
1426                         (void *) tcpip_stack, sizeof(tcpip_stack),
1427                         &tcpip_thread_handle, &tcpip_thread_object);
1428         cyg_thread_resume(tcpip_thread_handle);
1429 #ifdef WATCHDOG_BASE
1430         cyg_thread_create(1, watchdog_server, (cyg_addrword_t) 0, "watchdog tcip/ip server",
1431                         (void *) watchdog_stack, sizeof(watchdog_stack),
1432                         &watchdog_thread_handle, &watchdog_thread_object);
1433         cyg_thread_resume(watchdog_thread_handle);
1434 #endif
1435 #endif
1436
1437         return ERROR_OK;
1438 }
1439
1440
1441
1442 struct jtag_interface zy1000_interface =
1443 {
1444         .name = "ZY1000",
1445         .supported = DEBUG_CAP_TMS_SEQ,
1446         .execute_queue = NULL,
1447         .speed = zy1000_speed,
1448         .commands = zy1000_commands,
1449         .init = zy1000_init,
1450         .quit = zy1000_quit,
1451         .khz = zy1000_khz,
1452         .speed_div = zy1000_speed_div,
1453         .power_dropout = zy1000_power_dropout,
1454         .srst_asserted = zy1000_srst_asserted,
1455 };
1456