src/target/arm720t.c

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  *                                                                         *
  10  *   This program is distributed in the hope that it will be useful,       *
  11  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  12  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  13  *   GNU General Public License for more details.                          *
  14  *                                                                         *
  15  *   You should have received a copy of the GNU General Public License     *
  16  *   along with this program; if not, write to the                         *
  17  *   Free Software Foundation, Inc.,                                       *
  18  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  19  ***************************************************************************/
  20 #ifdef HAVE_CONFIG_H
  21 #include "config.h"
  22 #endif
  23
  24 #include "arm720t.h"
  25 #include "time_support.h"
  26 #include "target_type.h"
  27
  28
  29 #if 0
  30 #define _DEBUG_INSTRUCTION_EXECUTION_
  31 #endif
  32
  33 /* cli handling */
  34 int arm720t_register_commands(struct command_context_s *cmd_ctx);
  35
  36 int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  37 int arm720t_handle_md_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  38 int arm720t_handle_mw_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  39
  40 /* forward declarations */
  41 int arm720t_target_create(struct target_s *target,Jim_Interp *interp);
  42 int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
  43 int arm720t_quit(void);
  44 int arm720t_arch_state(struct target_s *target);
  45 int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  46 int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  47 int arm720t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  48 int arm720t_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  49 int arm720t_soft_reset_halt(struct target_s *target);
  50
  51 target_type_t arm720t_target =
  52 {
  53         .name = "arm720t",
  54
  55         .poll = arm7_9_poll,
  56         .arch_state = arm720t_arch_state,
  57
  58         .halt = arm7_9_halt,
  59         .resume = arm7_9_resume,
  60         .step = arm7_9_step,
  61
  62         .assert_reset = arm7_9_assert_reset,
  63         .deassert_reset = arm7_9_deassert_reset,
  64         .soft_reset_halt = arm720t_soft_reset_halt,
  65
  66         .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
  67
  68         .read_memory = arm720t_read_memory,
  69         .write_memory = arm720t_write_memory,
  70         .read_phys_memory = arm720t_read_phys_memory,
  71         .write_phys_memory = arm720t_write_phys_memory,
  72         .bulk_write_memory = arm7_9_bulk_write_memory,
  73         .checksum_memory = arm7_9_checksum_memory,
  74         .blank_check_memory = arm7_9_blank_check_memory,
  75
  76         .run_algorithm = armv4_5_run_algorithm,
  77
  78         .add_breakpoint = arm7_9_add_breakpoint,
  79         .remove_breakpoint = arm7_9_remove_breakpoint,
  80         .add_watchpoint = arm7_9_add_watchpoint,
  81         .remove_watchpoint = arm7_9_remove_watchpoint,
  82
  83         .register_commands = arm720t_register_commands,
  84         .target_create = arm720t_target_create,
  85         .init_target = arm720t_init_target,
  86         .examine = arm7tdmi_examine,
  87         .quit = arm720t_quit
  88
  89 };
  90
  91 int arm720t_scan_cp15(target_t *target, uint32_t out, uint32_t *in, int instruction, int clock)
  92 {
  93         int retval = ERROR_OK;
  94         armv4_5_common_t *armv4_5 = target->arch_info;
  95         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
  96         arm_jtag_t *jtag_info = &arm7_9->jtag_info;
  97         scan_field_t fields[2];
  98         uint8_t out_buf[4];
  99         uint8_t instruction_buf = instruction;
 100
 101         buf_set_u32(out_buf, 0, 32, flip_u32(out, 32));
 102
 103         jtag_set_end_state(TAP_DRPAUSE);
 104         if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK)
 105         {
 106                 return retval;
 107         }
 108         if ((retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL)) != ERROR_OK)
 109         {
 110                 return retval;
 111         }
 112
 113         fields[0].tap = jtag_info->tap;
 114         fields[0].num_bits = 1;
 115         fields[0].out_value = &instruction_buf;
 116         fields[0].in_value = NULL;
 117
 118         fields[1].tap = jtag_info->tap;
 119         fields[1].num_bits = 32;
 120         fields[1].out_value = out_buf;
 121         fields[1].in_value = NULL;
 122
 123         if (in)
 124         {
 125                 fields[1].in_value = (uint8_t *)in;
 126                 jtag_add_dr_scan(2, fields, jtag_get_end_state());
 127                 jtag_add_callback(arm7flip32, (jtag_callback_data_t)in);
 128         } else
 129         {
 130                 jtag_add_dr_scan(2, fields, jtag_get_end_state());
 131         }
 132
 133         if (clock)
 134                 jtag_add_runtest(0, jtag_get_end_state());
 135
 136 #ifdef _DEBUG_INSTRUCTION_EXECUTION_
 137         if ((retval = jtag_execute_queue()) != ERROR_OK)
 138         {
 139                 return retval;
 140         }
 141
 142         if (in)
 143                 LOG_DEBUG("out: %8.8x, in: %8.8x, instruction: %i, clock: %i", out, *in, instruction, clock);
 144         else
 145                 LOG_DEBUG("out: %8.8x, instruction: %i, clock: %i", out, instruction, clock);
 146 #else
 147                 LOG_DEBUG("out: %8.8" PRIx32 ", instruction: %i, clock: %i", out, instruction, clock);
 148 #endif
 149
 150         return ERROR_OK;
 151 }
 152
 153 int arm720t_read_cp15(target_t *target, uint32_t opcode, uint32_t *value)
 154 {
 155         /* fetch CP15 opcode */
 156         arm720t_scan_cp15(target, opcode, NULL, 1, 1);
 157         /* "DECODE" stage */
 158         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 159         /* "EXECUTE" stage (1) */
 160         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 0);
 161         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 162         /* "EXECUTE" stage (2) */
 163         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 164         /* "EXECUTE" stage (3), CDATA is read */
 165         arm720t_scan_cp15(target, ARMV4_5_NOP, value, 1, 1);
 166
 167         return ERROR_OK;
 168 }
 169
 170 int arm720t_write_cp15(target_t *target, uint32_t opcode, uint32_t value)
 171 {
 172         /* fetch CP15 opcode */
 173         arm720t_scan_cp15(target, opcode, NULL, 1, 1);
 174         /* "DECODE" stage */
 175         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 176         /* "EXECUTE" stage (1) */
 177         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 0);
 178         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 179         /* "EXECUTE" stage (2) */
 180         arm720t_scan_cp15(target, value, NULL, 0, 1);
 181         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 182
 183         return ERROR_OK;
 184 }
 185
 186 uint32_t arm720t_get_ttb(target_t *target)
 187 {
 188         uint32_t ttb = 0x0;
 189
 190         arm720t_read_cp15(target, 0xee120f10, &ttb);
 191         jtag_execute_queue();
 192
 193         ttb &= 0xffffc000;
 194
 195         return ttb;
 196 }
 197
 198 void arm720t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
 199 {
 200         uint32_t cp15_control;
 201
 202         /* read cp15 control register */
 203         arm720t_read_cp15(target, 0xee110f10, &cp15_control);
 204         jtag_execute_queue();
 205
 206         if (mmu)
 207                 cp15_control &= ~0x1U;
 208
 209         if (d_u_cache || i_cache)
 210                 cp15_control &= ~0x4U;
 211
 212         arm720t_write_cp15(target, 0xee010f10, cp15_control);
 213 }
 214
 215 void arm720t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
 216 {
 217         uint32_t cp15_control;
 218
 219         /* read cp15 control register */
 220         arm720t_read_cp15(target, 0xee110f10, &cp15_control);
 221         jtag_execute_queue();
 222
 223         if (mmu)
 224                 cp15_control |= 0x1U;
 225
 226         if (d_u_cache || i_cache)
 227                 cp15_control |= 0x4U;
 228
 229         arm720t_write_cp15(target, 0xee010f10, cp15_control);
 230 }
 231
 232 void arm720t_post_debug_entry(target_t *target)
 233 {
 234         armv4_5_common_t *armv4_5 = target->arch_info;
 235         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 236         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 237         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 238
 239         /* examine cp15 control reg */
 240         arm720t_read_cp15(target, 0xee110f10, &arm720t->cp15_control_reg);
 241         jtag_execute_queue();
 242         LOG_DEBUG("cp15_control_reg: %8.8" PRIx32 "", arm720t->cp15_control_reg);
 243
 244         arm720t->armv4_5_mmu.mmu_enabled = (arm720t->cp15_control_reg & 0x1U) ? 1 : 0;
 245         arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = (arm720t->cp15_control_reg & 0x4U) ? 1 : 0;
 246         arm720t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
 247
 248         /* save i/d fault status and address register */
 249         arm720t_read_cp15(target, 0xee150f10, &arm720t->fsr_reg);
 250         arm720t_read_cp15(target, 0xee160f10, &arm720t->far_reg);
 251         jtag_execute_queue();
 252 }
 253
 254 void arm720t_pre_restore_context(target_t *target)
 255 {
 256         armv4_5_common_t *armv4_5 = target->arch_info;
 257         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 258         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 259         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 260
 261         /* restore i/d fault status and address register */
 262         arm720t_write_cp15(target, 0xee050f10, arm720t->fsr_reg);
 263         arm720t_write_cp15(target, 0xee060f10, arm720t->far_reg);
 264 }
 265
 266 int arm720t_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p, arm7tdmi_common_t **arm7tdmi_p, arm720t_common_t **arm720t_p)
 267 {
 268         armv4_5_common_t *armv4_5 = target->arch_info;
 269         arm7_9_common_t *arm7_9;
 270         arm7tdmi_common_t *arm7tdmi;
 271         arm720t_common_t *arm720t;
 272
 273         if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
 274         {
 275                 return -1;
 276         }
 277
 278         arm7_9 = armv4_5->arch_info;
 279         if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC)
 280         {
 281                 return -1;
 282         }
 283
 284         arm7tdmi = arm7_9->arch_info;
 285         if (arm7tdmi->common_magic != ARM7TDMI_COMMON_MAGIC)
 286         {
 287                 return -1;
 288         }
 289
 290         arm720t = arm7tdmi->arch_info;
 291         if (arm720t->common_magic != ARM720T_COMMON_MAGIC)
 292         {
 293                 return -1;
 294         }
 295
 296         *armv4_5_p = armv4_5;
 297         *arm7_9_p = arm7_9;
 298         *arm7tdmi_p = arm7tdmi;
 299         *arm720t_p = arm720t;
 300
 301         return ERROR_OK;
 302 }
 303
 304 int arm720t_arch_state(struct target_s *target)
 305 {
 306         armv4_5_common_t *armv4_5 = target->arch_info;
 307         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 308         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 309         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 310
 311         char *state[] =
 312         {
 313                 "disabled", "enabled"
 314         };
 315
 316         if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
 317         {
 318                 LOG_ERROR("BUG: called for a non-ARMv4/5 target");
 319                 exit(-1);
 320         }
 321
 322         LOG_USER("target halted in %s state due to %s, current mode: %s\n"
 323                         "cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n"
 324                         "MMU: %s, Cache: %s",
 325                          armv4_5_state_strings[armv4_5->core_state],
 326                          Jim_Nvp_value2name_simple(nvp_target_debug_reason, target->debug_reason)->name ,
 327                          armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)],
 328                          buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32),
 329                          buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32),
 330                          state[arm720t->armv4_5_mmu.mmu_enabled],
 331                          state[arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled]);
 332
 333         return ERROR_OK;
 334 }
 335
 336 int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 337 {
 338         int retval;
 339         armv4_5_common_t *armv4_5 = target->arch_info;
 340         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 341         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 342         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 343
 344         /* disable cache, but leave MMU enabled */
 345         if (arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
 346                 arm720t_disable_mmu_caches(target, 0, 1, 0);
 347
 348         retval = arm7_9_read_memory(target, address, size, count, buffer);
 349
 350         if (arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
 351                 arm720t_enable_mmu_caches(target, 0, 1, 0);
 352
 353         return retval;
 354 }
 355
 356 int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 357 {
 358         int retval;
 359
 360         if ((retval = arm7_9_write_memory(target, address, size, count, buffer)) != ERROR_OK)
 361                 return retval;
 362
 363         return retval;
 364 }
 365
 366
 367 int arm720t_read_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 368 {
 369         armv4_5_common_t *armv4_5 = target->arch_info;
 370         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 371         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 372         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 373
 374         return armv4_5_mmu_read_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
 375 }
 376
 377 int arm720t_write_phys_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 378 {
 379         armv4_5_common_t *armv4_5 = target->arch_info;
 380         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 381         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 382         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 383
 384         return armv4_5_mmu_write_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
 385 }
 386
 387
 388 int arm720t_soft_reset_halt(struct target_s *target)
 389 {
 390         int retval = ERROR_OK;
 391         armv4_5_common_t *armv4_5 = target->arch_info;
 392         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 393         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 394         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 395         reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
 396
 397         if ((retval = target_halt(target)) != ERROR_OK)
 398         {
 399                 return retval;
 400         }
 401
 402         long long then = timeval_ms();
 403         int timeout;
 404         while (!(timeout = ((timeval_ms()-then) > 1000)))
 405         {
 406                 if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
 407                 {
 408                         embeddedice_read_reg(dbg_stat);
 409                         if ((retval = jtag_execute_queue()) != ERROR_OK)
 410                         {
 411                                 return retval;
 412                         }
 413                 } else
 414                 {
 415                         break;
 416                 }
 417                 if (debug_level >= 3)
 418                 {
 419                         alive_sleep(100);
 420                 } else
 421                 {
 422                         keep_alive();
 423                 }
 424         }
 425         if (timeout)
 426         {
 427                 LOG_ERROR("Failed to halt CPU after 1 sec");
 428                 return ERROR_TARGET_TIMEOUT;
 429         }
 430
 431         target->state = TARGET_HALTED;
 432
 433         /* SVC, ARM state, IRQ and FIQ disabled */
 434         buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8, 0xd3);
 435         armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1;
 436         armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1;
 437
 438         /* start fetching from 0x0 */
 439         buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, 0x0);
 440         armv4_5->core_cache->reg_list[15].dirty = 1;
 441         armv4_5->core_cache->reg_list[15].valid = 1;
 442
 443         armv4_5->core_mode = ARMV4_5_MODE_SVC;
 444         armv4_5->core_state = ARMV4_5_STATE_ARM;
 445
 446         arm720t_disable_mmu_caches(target, 1, 1, 1);
 447         arm720t->armv4_5_mmu.mmu_enabled = 0;
 448         arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 0;
 449         arm720t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
 450
 451         if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
 452         {
 453                 return retval;
 454         }
 455
 456         return ERROR_OK;
 457 }
 458
 459 int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
 460 {
 461         arm7tdmi_init_target(cmd_ctx, target);
 462
 463         return ERROR_OK;
 464 }
 465
 466 int arm720t_quit(void)
 467 {
 468         return ERROR_OK;
 469 }
 470
 471 int arm720t_init_arch_info(target_t *target, arm720t_common_t *arm720t, jtag_tap_t *tap)
 472 {
 473         arm7tdmi_common_t *arm7tdmi = &arm720t->arm7tdmi_common;
 474         arm7_9_common_t *arm7_9 = &arm7tdmi->arm7_9_common;
 475
 476         arm7tdmi_init_arch_info(target, arm7tdmi, tap);
 477
 478         arm7tdmi->arch_info = arm720t;
 479         arm720t->common_magic = ARM720T_COMMON_MAGIC;
 480
 481         arm7_9->post_debug_entry = arm720t_post_debug_entry;
 482         arm7_9->pre_restore_context = arm720t_pre_restore_context;
 483
 484         arm720t->armv4_5_mmu.armv4_5_cache.ctype = -1;
 485         arm720t->armv4_5_mmu.get_ttb = arm720t_get_ttb;
 486         arm720t->armv4_5_mmu.read_memory = arm7_9_read_memory;
 487         arm720t->armv4_5_mmu.write_memory = arm7_9_write_memory;
 488         arm720t->armv4_5_mmu.disable_mmu_caches = arm720t_disable_mmu_caches;
 489         arm720t->armv4_5_mmu.enable_mmu_caches = arm720t_enable_mmu_caches;
 490         arm720t->armv4_5_mmu.has_tiny_pages = 0;
 491         arm720t->armv4_5_mmu.mmu_enabled = 0;
 492
 493         return ERROR_OK;
 494 }
 495
 496 int arm720t_target_create(struct target_s *target, Jim_Interp *interp)
 497 {
 498         arm720t_common_t *arm720t = calloc(1,sizeof(arm720t_common_t));
 499
 500         arm720t_init_arch_info(target, arm720t, target->tap);
 501
 502         return ERROR_OK;
 503 }
 504
 505 int arm720t_register_commands(struct command_context_s *cmd_ctx)
 506 {
 507         int retval;
 508         command_t *arm720t_cmd;
 509
 510
 511         retval = arm7tdmi_register_commands(cmd_ctx);
 512
 513         arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t", NULL, COMMAND_ANY, "arm720t specific commands");
 514
 515         register_command(cmd_ctx, arm720t_cmd, "cp15", arm720t_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <opcode> [value]");
 516
 517         register_command(cmd_ctx, arm720t_cmd, "mdw_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory words <physical addr> [count]");
 518         register_command(cmd_ctx, arm720t_cmd, "mdh_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory half-words <physical addr> [count]");
 519         register_command(cmd_ctx, arm720t_cmd, "mdb_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory bytes <physical addr> [count]");
 520
 521         register_command(cmd_ctx, arm720t_cmd, "mww_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory word <physical addr> <value>");
 522         register_command(cmd_ctx, arm720t_cmd, "mwh_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory half-word <physical addr> <value>");
 523         register_command(cmd_ctx, arm720t_cmd, "mwb_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory byte <physical addr> <value>");
 524
 525         return ERROR_OK;
 526 }
 527
 528 int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 529 {
 530         int retval;
 531         target_t *target = get_current_target(cmd_ctx);
 532         armv4_5_common_t *armv4_5;
 533         arm7_9_common_t *arm7_9;
 534         arm7tdmi_common_t *arm7tdmi;
 535         arm720t_common_t *arm720t;
 536         arm_jtag_t *jtag_info;
 537
 538         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 539         {
 540                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 541                 return ERROR_OK;
 542         }
 543
 544         jtag_info = &arm7_9->jtag_info;
 545
 546         if (target->state != TARGET_HALTED)
 547         {
 548                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 549                 return ERROR_OK;
 550         }
 551
 552         /* one or more argument, access a single register (write if second argument is given */
 553         if (argc >= 1)
 554         {
 555                 uint32_t opcode = strtoul(args[0], NULL, 0);
 556
 557                 if (argc == 1)
 558                 {
 559                         uint32_t value;
 560                         if ((retval = arm720t_read_cp15(target, opcode, &value)) != ERROR_OK)
 561                         {
 562                                 command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
 563                                 return ERROR_OK;
 564                         }
 565
 566                         if ((retval = jtag_execute_queue()) != ERROR_OK)
 567                         {
 568                                 return retval;
 569                         }
 570
 571                         command_print(cmd_ctx, "0x%8.8" PRIx32 ": 0x%8.8" PRIx32 "", opcode, value);
 572                 }
 573                 else if (argc == 2)
 574                 {
 575                         uint32_t value = strtoul(args[1], NULL, 0);
 576                         if ((retval = arm720t_write_cp15(target, opcode, value)) != ERROR_OK)
 577                         {
 578                                 command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
 579                                 return ERROR_OK;
 580                         }
 581                         command_print(cmd_ctx, "0x%8.8" PRIx32 ": 0x%8.8" PRIx32 "", opcode, value);
 582                 }
 583         }
 584
 585         return ERROR_OK;
 586 }
 587
 588 int arm720t_handle_md_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 589 {
 590         target_t *target = get_current_target(cmd_ctx);
 591         armv4_5_common_t *armv4_5;
 592         arm7_9_common_t *arm7_9;
 593         arm7tdmi_common_t *arm7tdmi;
 594         arm720t_common_t *arm720t;
 595         arm_jtag_t *jtag_info;
 596
 597         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 598         {
 599                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 600                 return ERROR_OK;
 601         }
 602
 603         jtag_info = &arm7_9->jtag_info;
 604
 605         if (target->state != TARGET_HALTED)
 606         {
 607                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 608                 return ERROR_OK;
 609         }
 610
 611         return armv4_5_mmu_handle_md_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 612 }
 613
 614 int arm720t_handle_mw_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 615 {
 616         target_t *target = get_current_target(cmd_ctx);
 617         armv4_5_common_t *armv4_5;
 618         arm7_9_common_t *arm7_9;
 619         arm7tdmi_common_t *arm7tdmi;
 620         arm720t_common_t *arm720t;
 621         arm_jtag_t *jtag_info;
 622
 623         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 624         {
 625                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 626                 return ERROR_OK;
 627         }
 628
 629         jtag_info = &arm7_9->jtag_info;
 630
 631         if (target->state != TARGET_HALTED)
 632         {
 633                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 634                 return ERROR_OK;
 635         }
 636
 637         return armv4_5_mmu_handle_mw_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 638 }