git.sur5r.net Git - openocd/blob - src/jtag/zy1000.c

   1 /***************************************************************************
   2  *   Copyright (C) 2007-2008 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 #ifdef HAVE_CONFIG_H
  20 #include "config.h"
  21 #endif
  22
  23
  24 #include "log.h"
  25 #include "jtag.h"
  26 #include "bitbang.h"
  27 #include "../target/embeddedice.h"
  28
  29
  30 #include <cyg/hal/hal_io.h>             // low level i/o
  31 #include <cyg/hal/hal_diag.h>
  32
  33 #include <stdlib.h>
  34
  35
  36 extern int jtag_error;
  37
  38 /* low level command set
  39  */
  40 int zy1000_read(void);
  41 static void zy1000_write(int tck, int tms, int tdi);
  42 void zy1000_reset(int trst, int srst);
  43
  44
  45 int zy1000_speed(int speed);
  46 int zy1000_register_commands(struct command_context_s *cmd_ctx);
  47 int zy1000_init(void);
  48 int zy1000_quit(void);
  49
  50 /* interface commands */
  51 int zy1000_handle_zy1000_port_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  52
  53 static int zy1000_khz(int khz, int *jtag_speed)
  54 {
  55         if (khz==0)
  56         {
  57                 *jtag_speed=0;
  58         }
  59         else
  60         {
  61                 *jtag_speed=64000/khz;
  62         }
  63         return ERROR_OK;
  64 }
  65
  66 static int zy1000_speed_div(int speed, int *khz)
  67 {
  68         if (speed==0)
  69         {
  70                 *khz = 0;
  71         }
  72         else
  73         {
  74                 *khz=64000/speed;
  75         }
  76
  77         return ERROR_OK;
  78 }
  79
  80 static bool readPowerDropout()
  81 {
  82         cyg_uint32 state;
  83         // sample and clear power dropout
  84         HAL_WRITE_UINT32(0x08000010, 0x80);
  85         HAL_READ_UINT32(0x08000010, state);
  86         bool powerDropout;
  87         powerDropout = (state & 0x80) != 0;
  88         return powerDropout;
  89 }
  90
  91
  92 static bool readSRST()
  93 {
  94         cyg_uint32 state;
  95         // sample and clear SRST sensing
  96         HAL_WRITE_UINT32(0x08000010, 0x00000040);
  97         HAL_READ_UINT32(0x08000010, state);
  98         bool srstAsserted;
  99         srstAsserted = (state & 0x40) != 0;
 100         return srstAsserted;
 101 }
 102
 103 static int zy1000_srst_asserted(int *srst_asserted)
 104 {
 105         *srst_asserted=readSRST();
 106         return ERROR_OK;
 107 }
 108
 109 static int zy1000_power_dropout(int *dropout)
 110 {
 111         *dropout=readPowerDropout();
 112         return ERROR_OK;
 113 }
 114
 115
 116 jtag_interface_t zy1000_interface =
 117 {
 118         .name = "ZY1000",
 119         .execute_queue = bitbang_execute_queue,
 120         .speed = zy1000_speed,
 121         .register_commands = zy1000_register_commands,
 122         .init = zy1000_init,
 123         .quit = zy1000_quit,
 124         .khz = zy1000_khz,
 125         .speed_div = zy1000_speed_div,
 126         .power_dropout = zy1000_power_dropout,
 127         .srst_asserted = zy1000_srst_asserted,
 128 };
 129
 130 bitbang_interface_t zy1000_bitbang =
 131 {
 132         .read = zy1000_read,
 133         .write = zy1000_write,
 134         .reset = zy1000_reset
 135 };
 136
 137
 138
 139 static void zy1000_write(int tck, int tms, int tdi)
 140 {
 141
 142 }
 143
 144 int zy1000_read(void)
 145 {
 146         return -1;
 147 }
 148
 149 extern bool readSRST();
 150
 151 void zy1000_reset(int trst, int srst)
 152 {
 153         LOG_DEBUG("zy1000 trst=%d, srst=%d", trst, srst);
 154         if(!srst)
 155         {
 156                 ZY1000_POKE(0x08000014, 0x00000001);
 157         }
 158         else
 159         {
 160                 /* Danger!!! if clk!=0 when in
 161                  * idle in TAP_RTI, reset halt on str912 will fail.
 162                  */
 163                 ZY1000_POKE(0x08000010, 0x00000001);
 164         }
 165
 166         if(!trst)
 167         {
 168                 ZY1000_POKE(0x08000014, 0x00000002);
 169         }
 170         else
 171         {
 172                 /* assert reset */
 173                 ZY1000_POKE(0x08000010, 0x00000002);
 174         }
 175
 176         if (trst||(srst&&(jtag_reset_config & RESET_SRST_PULLS_TRST)))
 177         {
 178                 waitIdle();
 179                 /* we're now in the TLR state until trst is deasserted */
 180                 ZY1000_POKE(0x08000020, TAP_TLR);
 181         } else
 182         {
 183                 /* We'll get RCLK failure when we assert TRST, so clear any false positives here */
 184                 ZY1000_POKE(0x08000014, 0x400);
 185         }
 186
 187         /* wait for srst to float back up */
 188         if (!srst)
 189         {
 190                 int i;
 191                 for (i=0; i<1000; i++)
 192                 {
 193                         // We don't want to sense our own reset, so we clear here.
 194                         // There is of course a timing hole where we could loose
 195                         // a "real" reset.
 196                         if (!readSRST())
 197                                 break;
 198
 199                         /* wait 1ms */
 200                         alive_sleep(1);
 201                 }
 202
 203                 if (i==1000)
 204                 {
 205                         LOG_USER("SRST didn't deassert after %dms", i);
 206                 } else if (i>1)
 207                 {
 208                         LOG_USER("SRST took %dms to deassert", i);
 209                 }
 210         }
 211 }
 212
 213 int zy1000_speed(int speed)
 214 {
 215         if(speed == 0)
 216         {
 217                 /*0 means RCLK*/
 218                 speed = 0;
 219                 ZY1000_POKE(0x08000010, 0x100);
 220                 LOG_DEBUG("jtag_speed using RCLK");
 221         }
 222         else
 223         {
 224                 if(speed > 8190 || speed < 2)
 225                 {
 226                         LOG_ERROR("valid ZY1000 jtag_speed=[8190,2]. Divisor is 64MHz / even values between 8190-2, i.e. min 7814Hz, max 32MHz");
 227                         return ERROR_INVALID_ARGUMENTS;
 228                 }
 229
 230                 LOG_USER("jtag_speed %d => JTAG clk=%f", speed, 64.0/(float)speed);
 231                 ZY1000_POKE(0x08000014, 0x100);
 232                 ZY1000_POKE(0x0800001c, speed&~1);
 233         }
 234         return ERROR_OK;
 235 }
 236
 237 int zy1000_register_commands(struct command_context_s *cmd_ctx)
 238 {
 239         return ERROR_OK;
 240 }
 241
 242
 243 int zy1000_init(void)
 244 {
 245         ZY1000_POKE(0x08000010, 0x30); // Turn on LED1 & LED2
 246
 247          /* deassert resets. Important to avoid infinite loop waiting for SRST to deassert */
 248         zy1000_reset(0, 0);
 249         zy1000_speed(jtag_speed);
 250
 251         bitbang_interface = &zy1000_bitbang;
 252
 253         return ERROR_OK;
 254 }
 255
 256 int zy1000_quit(void)
 257 {
 258
 259         return ERROR_OK;
 260 }
 261
 262
 263
 264 /* loads a file and returns a pointer to it in memory. The file contains
 265  * a 0 byte(sentinel) after len bytes - the length of the file. */
 266 int loadFile(const char *fileName, void **data, int *len)
 267 {
 268         FILE * pFile;
 269         pFile = fopen (fileName,"rb");
 270         if (pFile==NULL)
 271         {
 272                 LOG_ERROR("Can't open %s\n", fileName);
 273                 return ERROR_JTAG_DEVICE_ERROR;
 274         }
 275     if (fseek (pFile, 0, SEEK_END)!=0)
 276     {
 277                 LOG_ERROR("Can't open %s\n", fileName);
 278                 fclose(pFile);
 279                 return ERROR_JTAG_DEVICE_ERROR;
 280     }
 281     *len=ftell (pFile);
 282     if (*len==-1)
 283     {
 284                 LOG_ERROR("Can't open %s\n", fileName);
 285                 fclose(pFile);
 286                 return ERROR_JTAG_DEVICE_ERROR;
 287     }
 288
 289     if (fseek (pFile, 0, SEEK_SET)!=0)
 290     {
 291                 LOG_ERROR("Can't open %s\n", fileName);
 292                 fclose(pFile);
 293                 return ERROR_JTAG_DEVICE_ERROR;
 294     }
 295     *data=malloc(*len+1);
 296     if (*data==NULL)
 297     {
 298                 LOG_ERROR("Can't open %s\n", fileName);
 299                 fclose(pFile);
 300                 return ERROR_JTAG_DEVICE_ERROR;
 301     }
 302
 303     if (fread(*data, 1, *len, pFile)!=*len)
 304     {
 305                 fclose(pFile);
 306         free(*data);
 307                 LOG_ERROR("Can't open %s\n", fileName);
 308                 return ERROR_JTAG_DEVICE_ERROR;
 309     }
 310     fclose (pFile);
 311     *(((char *)(*data))+*len)=0; /* sentinel */
 312
 313     return ERROR_OK;
 314
 315
 316
 317 }
 318
 319
 320
 321
 322 int interface_jtag_execute_queue(void)
 323 {
 324         cyg_uint32 empty;
 325
 326         waitIdle();
 327         ZY1000_PEEK(0x08000010, empty);
 328         /* clear JTAG error register */
 329         ZY1000_POKE(0x08000014, 0x400);
 330
 331         if ((empty&0x400)!=0)
 332         {
 333                 LOG_WARNING("RCLK timeout");
 334                 /* the error is informative only as we don't want to break the firmware if there
 335                  * is a false positive.
 336                  */
 337 //              return ERROR_FAIL;
 338         }
 339         return ERROR_OK;
 340 }
 341
 342
 343
 344
 345
 346 static cyg_uint32 getShiftValue()
 347 {
 348         cyg_uint32 value;
 349         waitIdle();
 350         ZY1000_PEEK(0x0800000c, value);
 351         VERBOSE(LOG_INFO("getShiftValue %08x", value));
 352         return value;
 353 }
 354 #if 0
 355 static cyg_uint32 getShiftValueFlip()
 356 {
 357         cyg_uint32 value;
 358         waitIdle();
 359         ZY1000_PEEK(0x08000018, value);
 360         VERBOSE(LOG_INFO("getShiftValue %08x (flipped)", value));
 361         return value;
 362 }
 363 #endif
 364
 365 #if 0
 366 static void shiftValueInnerFlip(const enum tap_state state, const enum tap_state endState, int repeat, cyg_uint32 value)
 367 {
 368         VERBOSE(LOG_INFO("shiftValueInner %s %s %d %08x (flipped)", tap_state_strings[state], tap_state_strings[endState], repeat, value));
 369         cyg_uint32 a,b;
 370         a=state;
 371         b=endState;
 372         ZY1000_POKE(0x0800000c, value);
 373         ZY1000_POKE(0x08000008, (1<<15)|(repeat<<8)|(a<<4)|b);
 374         VERBOSE(getShiftValueFlip());
 375 }
 376 #endif
 377
 378 extern int jtag_check_value(u8 *captured, void *priv);
 379
 380 static void gotoEndState()
 381 {
 382         setCurrentState(cmd_queue_end_state);
 383 }
 384
 385 static __inline void scanFields(int num_fields, scan_field_t *fields, enum tap_state shiftState, int pause)
 386 {
 387         int i;
 388         int j;
 389         int k;
 390
 391         for (i = 0; i < num_fields; i++)
 392         {
 393                 cyg_uint32 value;
 394
 395                 static u8 *in_buff=NULL; /* pointer to buffer for scanned data */
 396                 static int in_buff_size=0;
 397                 u8 *inBuffer=NULL;
 398
 399
 400                 // figure out where to store the input data
 401                 int num_bits=fields[i].num_bits;
 402                 if (fields[i].in_value!=NULL)
 403                 {
 404                         inBuffer=fields[i].in_value;
 405                 } else if (fields[i].in_handler!=NULL)
 406                 {
 407                         if (in_buff_size*8<num_bits)
 408                         {
 409                                 // we need more space
 410                                 if (in_buff!=NULL)
 411                                         free(in_buff);
 412                                 in_buff=NULL;
 413                                 in_buff_size=(num_bits+7)/8;
 414                                 in_buff=malloc(in_buff_size);
 415                                 if (in_buff==NULL)
 416                                 {
 417                                         LOG_ERROR("Out of memory");
 418                                         jtag_error=ERROR_JTAG_QUEUE_FAILED;
 419                                         return;
 420                                 }
 421                         }
 422                         inBuffer=in_buff;
 423                 }
 424
 425                 // here we shuffle N bits out/in
 426                 j=0;
 427                 while (j<num_bits)
 428                 {
 429                         enum tap_state pause_state;
 430                         int l;
 431                         k=num_bits-j;
 432                         pause_state=(shiftState==TAP_SD)?TAP_SD:TAP_SI;
 433                         if (k>32)
 434                         {
 435                                 k=32;
 436                                 /* we have more to shift out */
 437                         } else if (pause&&(i == num_fields-1))
 438                         {
 439                                 /* this was the last to shift out this time */
 440                                 pause_state=(shiftState==TAP_SD)?TAP_PD:TAP_PI;
 441                         }
 442
 443                         // we have (num_bits+7)/8 bytes of bits to toggle out.
 444                         // bits are pushed out LSB to MSB
 445                         value=0;
 446                         if (fields[i].out_value!=NULL)
 447                         {
 448                                 for (l=0; l<k; l+=8)
 449                                 {
 450                                         value|=fields[i].out_value[(j+l)/8]<<l;
 451                                 }
 452                         }
 453                         /* mask away unused bits for easier debugging */
 454                         value&=~(((u32)0xffffffff)<<k);
 455
 456                         shiftValueInner(shiftState, pause_state, k, value);
 457
 458                         if (inBuffer!=NULL)
 459                         {
 460                                 // data in, LSB to MSB
 461                                 value=getShiftValue();
 462                                 // we're shifting in data to MSB, shift data to be aligned for returning the value
 463                                 value >>= 32-k;
 464
 465                                 for (l=0; l<k; l+=8)
 466                                 {
 467                                         inBuffer[(j+l)/8]=(value>>l)&0xff;
 468                                 }
 469                         }
 470                         j+=k;
 471                 }
 472
 473                 if (fields[i].in_handler!=NULL)
 474                 {
 475                         // invoke callback
 476                         int r=fields[i].in_handler(inBuffer, fields[i].in_handler_priv, fields+i);
 477                         if (r!=ERROR_OK)
 478                         {
 479                             /* this will cause jtag_execute_queue() to return an error */
 480                                 jtag_error=r;
 481                         }
 482                 }
 483         }
 484 }
 485
 486 int interface_jtag_add_end_state(enum tap_state state)
 487 {
 488         return ERROR_OK;
 489 }
 490
 491
 492 int interface_jtag_add_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 493 {
 494
 495         int i, j;
 496         int scan_size = 0;
 497         jtag_device_t *device;
 498
 499         for (i=0; i < jtag_num_devices; i++)
 500         {
 501                 int pause=i==(jtag_num_devices-1);
 502                 int found = 0;
 503                 device = jtag_get_device(i);
 504                 scan_size = device->ir_length;
 505
 506                 /* search the list */
 507                 for (j=0; j < num_fields; j++)
 508                 {
 509                         if (i == fields[j].device)
 510                         {
 511                                 found = 1;
 512
 513                                 if ((jtag_verify_capture_ir)&&(fields[j].in_handler==NULL))
 514                                 {
 515                                         jtag_set_check_value(fields+j, device->expected, device->expected_mask, NULL);
 516                                 } else if (jtag_verify_capture_ir)
 517                                 {
 518                                         fields[j].in_check_value = device->expected;
 519                                         fields[j].in_check_mask = device->expected_mask;
 520                                 }
 521
 522                                 scanFields(1, fields+j, TAP_SI, pause);
 523                                 /* update device information */
 524                                 buf_cpy(fields[j].out_value, jtag_get_device(i)->cur_instr, scan_size);
 525
 526                                 device->bypass = 0;
 527                                 break;
 528                         }
 529                 }
 530
 531                 if (!found)
 532                 {
 533                         /* if a device isn't listed, set it to BYPASS */
 534                         u8 ones[]={0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff};
 535
 536                         scan_field_t tmp;
 537                         memset(&tmp, 0, sizeof(tmp));
 538                         tmp.out_value = ones;
 539                         tmp.num_bits = scan_size;
 540                         scanFields(1, &tmp, TAP_SI, pause);
 541                         /* update device information */
 542                         buf_cpy(tmp.out_value, jtag_get_device(i)->cur_instr, scan_size);
 543                         device->bypass = 1;
 544                 }
 545         }
 546         gotoEndState();
 547
 548         return ERROR_OK;
 549 }
 550
 551
 552
 553
 554
 555 int interface_jtag_add_plain_ir_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 556 {
 557         scanFields(num_fields, fields, TAP_SI, 1);
 558         gotoEndState();
 559
 560         return ERROR_OK;
 561 }
 562
 563 /*extern jtag_command_t **jtag_get_last_command_p(void);*/
 564
 565 int interface_jtag_add_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 566 {
 567         int i, j;
 568         for (i=0; i < jtag_num_devices; i++)
 569         {
 570                 int found = 0;
 571                 int pause = (i==(jtag_num_devices-1));
 572
 573                 for (j=0; j < num_fields; j++)
 574                 {
 575                         if (i == fields[j].device)
 576                         {
 577                                 found = 1;
 578
 579                                 scanFields(1, fields+j, TAP_SD, pause);
 580                         }
 581                 }
 582                 if (!found)
 583                 {
 584 #ifdef _DEBUG_JTAG_IO_
 585                         /* if a device isn't listed, the BYPASS register should be selected */
 586                         if (!jtag_get_device(i)->bypass)
 587                         {
 588                                 LOG_ERROR("BUG: no scan data for a device not in BYPASS");
 589                                 exit(-1);
 590                         }
 591 #endif
 592
 593                         scan_field_t tmp;
 594                         /* program the scan field to 1 bit length, and ignore it's value */
 595                         tmp.num_bits = 1;
 596                         tmp.out_value = NULL;
 597                         tmp.out_mask = NULL;
 598                         tmp.in_value = NULL;
 599                         tmp.in_check_value = NULL;
 600                         tmp.in_check_mask = NULL;
 601                         tmp.in_handler = NULL;
 602                         tmp.in_handler_priv = NULL;
 603
 604                         scanFields(1, &tmp, TAP_SD, pause);
 605                 }
 606                 else
 607                 {
 608 #ifdef _DEBUG_JTAG_IO_
 609                         /* if a device is listed, the BYPASS register must not be selected */
 610                         if (jtag_get_device(i)->bypass)
 611                         {
 612                                 LOG_WARNING("scan data for a device in BYPASS");
 613                         }
 614 #endif
 615                 }
 616         }
 617         gotoEndState();
 618         return ERROR_OK;
 619 }
 620
 621 int interface_jtag_add_plain_dr_scan(int num_fields, scan_field_t *fields, enum tap_state state)
 622 {
 623         scanFields(num_fields, fields, TAP_SD, 1);
 624         gotoEndState();
 625         return ERROR_OK;
 626 }
 627
 628
 629 int interface_jtag_add_tlr()
 630 {
 631         setCurrentState(TAP_TLR);
 632         return ERROR_OK;
 633 }
 634
 635
 636
 637
 638 extern int jtag_nsrst_delay;
 639 extern int jtag_ntrst_delay;
 640
 641 int interface_jtag_add_reset(int req_trst, int req_srst)
 642 {
 643         zy1000_reset(req_trst, req_srst);
 644         return ERROR_OK;
 645 }
 646
 647 int interface_jtag_add_runtest(int num_cycles, enum tap_state state)
 648 {
 649         /* num_cycles can be 0 */
 650         setCurrentState(TAP_RTI);
 651
 652         /* execute num_cycles, 32 at the time. */
 653         int i;
 654         for (i=0; i<num_cycles; i+=32)
 655         {
 656                 int num;
 657                 num=32;
 658                 if (num_cycles-i<num)
 659                 {
 660                         num=num_cycles-i;
 661                 }
 662                 shiftValueInner(TAP_RTI, TAP_RTI, num, 0);
 663         }
 664
 665 #if !TEST_MANUAL()
 666         /* finish in end_state */
 667         setCurrentState(state);
 668 #else
 669         enum tap_state t=TAP_RTI;
 670         /* test manual drive code on any target */
 671         int tms;
 672         u8 tms_scan = TAP_MOVE(t, state);
 673
 674         for (i = 0; i < 7; i++)
 675         {
 676                 tms = (tms_scan >> i) & 1;
 677                 waitIdle();
 678                 ZY1000_POKE(0x08000028,  tms);
 679         }
 680         waitIdle();
 681         ZY1000_POKE(0x08000020, state);
 682 #endif
 683
 684
 685         return ERROR_OK;
 686 }
 687
 688 int interface_jtag_add_sleep(u32 us)
 689 {
 690         jtag_sleep(us);
 691         return ERROR_OK;
 692 }
 693
 694 int interface_jtag_add_pathmove(int num_states, enum tap_state *path)
 695 {
 696         int state_count;
 697         int tms = 0;
 698
 699         /*wait for the fifo to be empty*/
 700         waitIdle();
 701
 702         state_count = 0;
 703
 704         enum tap_state cur_state=cmd_queue_cur_state;
 705
 706         while (num_states)
 707         {
 708                 if (tap_transitions[cur_state].low == path[state_count])
 709                 {
 710                         tms = 0;
 711                 }
 712                 else if (tap_transitions[cur_state].high == path[state_count])
 713                 {
 714                         tms = 1;
 715                 }
 716                 else
 717                 {
 718                         LOG_ERROR("BUG: %s -> %s isn't a valid TAP transition", tap_state_strings[cur_state], tap_state_strings[path[state_count]]);
 719                         exit(-1);
 720                 }
 721
 722                 waitIdle();
 723                 ZY1000_POKE(0x08000028,  tms);
 724
 725                 cur_state = path[state_count];
 726                 state_count++;
 727                 num_states--;
 728         }
 729
 730         waitIdle();
 731         ZY1000_POKE(0x08000020,  cur_state);
 732         return ERROR_OK;
 733 }
 734
 735
 736
 737 void embeddedice_write_dcc(int chain_pos, int reg_addr, u8 *buffer, int little, int count)
 738 {
 739 //      static int const reg_addr=0x5;
 740         enum tap_state end_state=cmd_queue_end_state;
 741         if (jtag_num_devices==1)
 742         {
 743                 /* better performance via code duplication */
 744                 if (little)
 745                 {
 746                         int i;
 747                         for (i = 0; i < count; i++)
 748                         {
 749                                 shiftValueInner(TAP_SD, TAP_SD, 32, fast_target_buffer_get_u32(buffer, 1));
 750                                 shiftValueInner(TAP_SD, end_state, 6, reg_addr|(1<<5));
 751                                 buffer+=4;
 752                         }
 753                 } else
 754                 {
 755                         int i;
 756                         for (i = 0; i < count; i++)
 757                         {
 758                                 shiftValueInner(TAP_SD, TAP_SD, 32, fast_target_buffer_get_u32(buffer, 0));
 759                                 shiftValueInner(TAP_SD, end_state, 6, reg_addr|(1<<5));
 760                                 buffer+=4;
 761                         }
 762                 }
 763         }
 764         else
 765         {
 766                 int i;
 767                 for (i = 0; i < count; i++)
 768                 {
 769                         embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little));
 770                         buffer += 4;
 771                 }
 772         }
 773 }
 774