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_virt2phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  38 int arm720t_handle_md_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  39 int arm720t_handle_mw_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  40
  41 /* forward declarations */
  42 int arm720t_target_create(struct target_s *target,Jim_Interp *interp);
  43 int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
  44 int arm720t_quit(void);
  45 int arm720t_arch_state(struct target_s *target);
  46 int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  47 int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
  48 int arm720t_soft_reset_halt(struct target_s *target);
  49
  50 target_type_t arm720t_target =
  51 {
  52         .name = "arm720t",
  53
  54         .poll = arm7_9_poll,
  55         .arch_state = arm720t_arch_state,
  56
  57         .halt = arm7_9_halt,
  58         .resume = arm7_9_resume,
  59         .step = arm7_9_step,
  60
  61         .assert_reset = arm7_9_assert_reset,
  62         .deassert_reset = arm7_9_deassert_reset,
  63         .soft_reset_halt = arm720t_soft_reset_halt,
  64
  65         .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
  66
  67         .read_memory = arm720t_read_memory,
  68         .write_memory = arm720t_write_memory,
  69         .bulk_write_memory = arm7_9_bulk_write_memory,
  70         .checksum_memory = arm7_9_checksum_memory,
  71         .blank_check_memory = arm7_9_blank_check_memory,
  72
  73         .run_algorithm = armv4_5_run_algorithm,
  74
  75         .add_breakpoint = arm7_9_add_breakpoint,
  76         .remove_breakpoint = arm7_9_remove_breakpoint,
  77         .add_watchpoint = arm7_9_add_watchpoint,
  78         .remove_watchpoint = arm7_9_remove_watchpoint,
  79
  80         .register_commands = arm720t_register_commands,
  81         .target_create = arm720t_target_create,
  82         .init_target = arm720t_init_target,
  83         .examine = arm7tdmi_examine,
  84         .quit = arm720t_quit
  85 };
  86
  87 int arm720t_scan_cp15(target_t *target, uint32_t out, uint32_t *in, int instruction, int clock)
  88 {
  89         int retval = ERROR_OK;
  90         armv4_5_common_t *armv4_5 = target->arch_info;
  91         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
  92         arm_jtag_t *jtag_info = &arm7_9->jtag_info;
  93         scan_field_t fields[2];
  94         uint8_t out_buf[4];
  95         uint8_t instruction_buf = instruction;
  96
  97         buf_set_u32(out_buf, 0, 32, flip_u32(out, 32));
  98
  99         jtag_set_end_state(TAP_DRPAUSE);
 100         if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK)
 101         {
 102                 return retval;
 103         }
 104         if ((retval = arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL)) != ERROR_OK)
 105         {
 106                 return retval;
 107         }
 108
 109         fields[0].tap = jtag_info->tap;
 110         fields[0].num_bits = 1;
 111         fields[0].out_value = &instruction_buf;
 112         fields[0].in_value = NULL;
 113
 114         fields[1].tap = jtag_info->tap;
 115         fields[1].num_bits = 32;
 116         fields[1].out_value = out_buf;
 117         fields[1].in_value = NULL;
 118
 119         if (in)
 120         {
 121                 fields[1].in_value = (uint8_t *)in;
 122                 jtag_add_dr_scan(2, fields, jtag_get_end_state());
 123                 jtag_add_callback(arm7flip32, (jtag_callback_data_t)in);
 124         } else
 125         {
 126                 jtag_add_dr_scan(2, fields, jtag_get_end_state());
 127         }
 128
 129         if (clock)
 130                 jtag_add_runtest(0, jtag_get_end_state());
 131
 132 #ifdef _DEBUG_INSTRUCTION_EXECUTION_
 133         if ((retval = jtag_execute_queue()) != ERROR_OK)
 134         {
 135                 return retval;
 136         }
 137
 138         if (in)
 139                 LOG_DEBUG("out: %8.8x, in: %8.8x, instruction: %i, clock: %i", out, *in, instruction, clock);
 140         else
 141                 LOG_DEBUG("out: %8.8x, instruction: %i, clock: %i", out, instruction, clock);
 142 #else
 143                 LOG_DEBUG("out: %8.8" PRIx32 ", instruction: %i, clock: %i", out, instruction, clock);
 144 #endif
 145
 146         return ERROR_OK;
 147 }
 148
 149 int arm720t_read_cp15(target_t *target, uint32_t opcode, uint32_t *value)
 150 {
 151         /* fetch CP15 opcode */
 152         arm720t_scan_cp15(target, opcode, NULL, 1, 1);
 153         /* "DECODE" stage */
 154         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 155         /* "EXECUTE" stage (1) */
 156         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 0);
 157         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 158         /* "EXECUTE" stage (2) */
 159         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 160         /* "EXECUTE" stage (3), CDATA is read */
 161         arm720t_scan_cp15(target, ARMV4_5_NOP, value, 1, 1);
 162
 163         return ERROR_OK;
 164 }
 165
 166 int arm720t_write_cp15(target_t *target, uint32_t opcode, uint32_t value)
 167 {
 168         /* fetch CP15 opcode */
 169         arm720t_scan_cp15(target, opcode, NULL, 1, 1);
 170         /* "DECODE" stage */
 171         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 172         /* "EXECUTE" stage (1) */
 173         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 0);
 174         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 175         /* "EXECUTE" stage (2) */
 176         arm720t_scan_cp15(target, value, NULL, 0, 1);
 177         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 178
 179         return ERROR_OK;
 180 }
 181
 182 uint32_t arm720t_get_ttb(target_t *target)
 183 {
 184         uint32_t ttb = 0x0;
 185
 186         arm720t_read_cp15(target, 0xee120f10, &ttb);
 187         jtag_execute_queue();
 188
 189         ttb &= 0xffffc000;
 190
 191         return ttb;
 192 }
 193
 194 void arm720t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
 195 {
 196         uint32_t cp15_control;
 197
 198         /* read cp15 control register */
 199         arm720t_read_cp15(target, 0xee110f10, &cp15_control);
 200         jtag_execute_queue();
 201
 202         if (mmu)
 203                 cp15_control &= ~0x1U;
 204
 205         if (d_u_cache || i_cache)
 206                 cp15_control &= ~0x4U;
 207
 208         arm720t_write_cp15(target, 0xee010f10, cp15_control);
 209 }
 210
 211 void arm720t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
 212 {
 213         uint32_t cp15_control;
 214
 215         /* read cp15 control register */
 216         arm720t_read_cp15(target, 0xee110f10, &cp15_control);
 217         jtag_execute_queue();
 218
 219         if (mmu)
 220                 cp15_control |= 0x1U;
 221
 222         if (d_u_cache || i_cache)
 223                 cp15_control |= 0x4U;
 224
 225         arm720t_write_cp15(target, 0xee010f10, cp15_control);
 226 }
 227
 228 void arm720t_post_debug_entry(target_t *target)
 229 {
 230         armv4_5_common_t *armv4_5 = target->arch_info;
 231         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 232         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 233         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 234
 235         /* examine cp15 control reg */
 236         arm720t_read_cp15(target, 0xee110f10, &arm720t->cp15_control_reg);
 237         jtag_execute_queue();
 238         LOG_DEBUG("cp15_control_reg: %8.8" PRIx32 "", arm720t->cp15_control_reg);
 239
 240         arm720t->armv4_5_mmu.mmu_enabled = (arm720t->cp15_control_reg & 0x1U) ? 1 : 0;
 241         arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = (arm720t->cp15_control_reg & 0x4U) ? 1 : 0;
 242         arm720t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
 243
 244         /* save i/d fault status and address register */
 245         arm720t_read_cp15(target, 0xee150f10, &arm720t->fsr_reg);
 246         arm720t_read_cp15(target, 0xee160f10, &arm720t->far_reg);
 247         jtag_execute_queue();
 248 }
 249
 250 void arm720t_pre_restore_context(target_t *target)
 251 {
 252         armv4_5_common_t *armv4_5 = target->arch_info;
 253         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 254         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 255         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 256
 257         /* restore i/d fault status and address register */
 258         arm720t_write_cp15(target, 0xee050f10, arm720t->fsr_reg);
 259         arm720t_write_cp15(target, 0xee060f10, arm720t->far_reg);
 260 }
 261
 262 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)
 263 {
 264         armv4_5_common_t *armv4_5 = target->arch_info;
 265         arm7_9_common_t *arm7_9;
 266         arm7tdmi_common_t *arm7tdmi;
 267         arm720t_common_t *arm720t;
 268
 269         if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
 270         {
 271                 return -1;
 272         }
 273
 274         arm7_9 = armv4_5->arch_info;
 275         if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC)
 276         {
 277                 return -1;
 278         }
 279
 280         arm7tdmi = arm7_9->arch_info;
 281         if (arm7tdmi->common_magic != ARM7TDMI_COMMON_MAGIC)
 282         {
 283                 return -1;
 284         }
 285
 286         arm720t = arm7tdmi->arch_info;
 287         if (arm720t->common_magic != ARM720T_COMMON_MAGIC)
 288         {
 289                 return -1;
 290         }
 291
 292         *armv4_5_p = armv4_5;
 293         *arm7_9_p = arm7_9;
 294         *arm7tdmi_p = arm7tdmi;
 295         *arm720t_p = arm720t;
 296
 297         return ERROR_OK;
 298 }
 299
 300 int arm720t_arch_state(struct target_s *target)
 301 {
 302         armv4_5_common_t *armv4_5 = target->arch_info;
 303         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 304         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 305         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 306
 307         char *state[] =
 308         {
 309                 "disabled", "enabled"
 310         };
 311
 312         if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
 313         {
 314                 LOG_ERROR("BUG: called for a non-ARMv4/5 target");
 315                 exit(-1);
 316         }
 317
 318         LOG_USER("target halted in %s state due to %s, current mode: %s\n"
 319                         "cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n"
 320                         "MMU: %s, Cache: %s",
 321                          armv4_5_state_strings[armv4_5->core_state],
 322                          Jim_Nvp_value2name_simple(nvp_target_debug_reason, target->debug_reason)->name ,
 323                          armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)],
 324                          buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32),
 325                          buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32),
 326                          state[arm720t->armv4_5_mmu.mmu_enabled],
 327                          state[arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled]);
 328
 329         return ERROR_OK;
 330 }
 331
 332 int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 333 {
 334         int retval;
 335         armv4_5_common_t *armv4_5 = target->arch_info;
 336         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 337         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 338         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 339
 340         /* disable cache, but leave MMU enabled */
 341         if (arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
 342                 arm720t_disable_mmu_caches(target, 0, 1, 0);
 343
 344         retval = arm7_9_read_memory(target, address, size, count, buffer);
 345
 346         if (arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
 347                 arm720t_enable_mmu_caches(target, 0, 1, 0);
 348
 349         return retval;
 350 }
 351
 352 int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 353 {
 354         int retval;
 355
 356         if ((retval = arm7_9_write_memory(target, address, size, count, buffer)) != ERROR_OK)
 357                 return retval;
 358
 359         return retval;
 360 }
 361
 362 int arm720t_soft_reset_halt(struct target_s *target)
 363 {
 364         int retval = ERROR_OK;
 365         armv4_5_common_t *armv4_5 = target->arch_info;
 366         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 367         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 368         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 369         reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
 370
 371         if ((retval = target_halt(target)) != ERROR_OK)
 372         {
 373                 return retval;
 374         }
 375
 376         long long then = timeval_ms();
 377         int timeout;
 378         while (!(timeout = ((timeval_ms()-then) > 1000)))
 379         {
 380                 if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
 381                 {
 382                         embeddedice_read_reg(dbg_stat);
 383                         if ((retval = jtag_execute_queue()) != ERROR_OK)
 384                         {
 385                                 return retval;
 386                         }
 387                 } else
 388                 {
 389                         break;
 390                 }
 391                 if (debug_level >= 3)
 392                 {
 393                         alive_sleep(100);
 394                 } else
 395                 {
 396                         keep_alive();
 397                 }
 398         }
 399         if (timeout)
 400         {
 401                 LOG_ERROR("Failed to halt CPU after 1 sec");
 402                 return ERROR_TARGET_TIMEOUT;
 403         }
 404
 405         target->state = TARGET_HALTED;
 406
 407         /* SVC, ARM state, IRQ and FIQ disabled */
 408         buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8, 0xd3);
 409         armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1;
 410         armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1;
 411
 412         /* start fetching from 0x0 */
 413         buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, 0x0);
 414         armv4_5->core_cache->reg_list[15].dirty = 1;
 415         armv4_5->core_cache->reg_list[15].valid = 1;
 416
 417         armv4_5->core_mode = ARMV4_5_MODE_SVC;
 418         armv4_5->core_state = ARMV4_5_STATE_ARM;
 419
 420         arm720t_disable_mmu_caches(target, 1, 1, 1);
 421         arm720t->armv4_5_mmu.mmu_enabled = 0;
 422         arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 0;
 423         arm720t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
 424
 425         if ((retval = target_call_event_callbacks(target, TARGET_EVENT_HALTED)) != ERROR_OK)
 426         {
 427                 return retval;
 428         }
 429
 430         return ERROR_OK;
 431 }
 432
 433 int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
 434 {
 435         arm7tdmi_init_target(cmd_ctx, target);
 436
 437         return ERROR_OK;
 438 }
 439
 440 int arm720t_quit(void)
 441 {
 442         return ERROR_OK;
 443 }
 444
 445 int arm720t_init_arch_info(target_t *target, arm720t_common_t *arm720t, jtag_tap_t *tap)
 446 {
 447         arm7tdmi_common_t *arm7tdmi = &arm720t->arm7tdmi_common;
 448         arm7_9_common_t *arm7_9 = &arm7tdmi->arm7_9_common;
 449
 450         arm7tdmi_init_arch_info(target, arm7tdmi, tap);
 451
 452         arm7tdmi->arch_info = arm720t;
 453         arm720t->common_magic = ARM720T_COMMON_MAGIC;
 454
 455         arm7_9->post_debug_entry = arm720t_post_debug_entry;
 456         arm7_9->pre_restore_context = arm720t_pre_restore_context;
 457
 458         arm720t->armv4_5_mmu.armv4_5_cache.ctype = -1;
 459         arm720t->armv4_5_mmu.get_ttb = arm720t_get_ttb;
 460         arm720t->armv4_5_mmu.read_memory = arm7_9_read_memory;
 461         arm720t->armv4_5_mmu.write_memory = arm7_9_write_memory;
 462         arm720t->armv4_5_mmu.disable_mmu_caches = arm720t_disable_mmu_caches;
 463         arm720t->armv4_5_mmu.enable_mmu_caches = arm720t_enable_mmu_caches;
 464         arm720t->armv4_5_mmu.has_tiny_pages = 0;
 465         arm720t->armv4_5_mmu.mmu_enabled = 0;
 466
 467         return ERROR_OK;
 468 }
 469
 470 int arm720t_target_create(struct target_s *target, Jim_Interp *interp)
 471 {
 472         arm720t_common_t *arm720t = calloc(1,sizeof(arm720t_common_t));
 473
 474         arm720t_init_arch_info(target, arm720t, target->tap);
 475
 476         return ERROR_OK;
 477 }
 478
 479 int arm720t_register_commands(struct command_context_s *cmd_ctx)
 480 {
 481         int retval;
 482         command_t *arm720t_cmd;
 483
 484
 485         retval = arm7tdmi_register_commands(cmd_ctx);
 486
 487         arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t", NULL, COMMAND_ANY, "arm720t specific commands");
 488
 489         register_command(cmd_ctx, arm720t_cmd, "cp15", arm720t_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <opcode> [value]");
 490         register_command(cmd_ctx, arm720t_cmd, "virt2phys", arm720t_handle_virt2phys_command, COMMAND_EXEC, "translate va to pa <va>");
 491
 492         register_command(cmd_ctx, arm720t_cmd, "mdw_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory words <physical addr> [count]");
 493         register_command(cmd_ctx, arm720t_cmd, "mdh_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory half-words <physical addr> [count]");
 494         register_command(cmd_ctx, arm720t_cmd, "mdb_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory bytes <physical addr> [count]");
 495
 496         register_command(cmd_ctx, arm720t_cmd, "mww_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory word <physical addr> <value>");
 497         register_command(cmd_ctx, arm720t_cmd, "mwh_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory half-word <physical addr> <value>");
 498         register_command(cmd_ctx, arm720t_cmd, "mwb_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory byte <physical addr> <value>");
 499
 500         return ERROR_OK;
 501 }
 502
 503 int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 504 {
 505         int retval;
 506         target_t *target = get_current_target(cmd_ctx);
 507         armv4_5_common_t *armv4_5;
 508         arm7_9_common_t *arm7_9;
 509         arm7tdmi_common_t *arm7tdmi;
 510         arm720t_common_t *arm720t;
 511         arm_jtag_t *jtag_info;
 512
 513         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 514         {
 515                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 516                 return ERROR_OK;
 517         }
 518
 519         jtag_info = &arm7_9->jtag_info;
 520
 521         if (target->state != TARGET_HALTED)
 522         {
 523                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 524                 return ERROR_OK;
 525         }
 526
 527         /* one or more argument, access a single register (write if second argument is given */
 528         if (argc >= 1)
 529         {
 530                 uint32_t opcode = strtoul(args[0], NULL, 0);
 531
 532                 if (argc == 1)
 533                 {
 534                         uint32_t value;
 535                         if ((retval = arm720t_read_cp15(target, opcode, &value)) != ERROR_OK)
 536                         {
 537                                 command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
 538                                 return ERROR_OK;
 539                         }
 540
 541                         if ((retval = jtag_execute_queue()) != ERROR_OK)
 542                         {
 543                                 return retval;
 544                         }
 545
 546                         command_print(cmd_ctx, "0x%8.8" PRIx32 ": 0x%8.8" PRIx32 "", opcode, value);
 547                 }
 548                 else if (argc == 2)
 549                 {
 550                         uint32_t value = strtoul(args[1], NULL, 0);
 551                         if ((retval = arm720t_write_cp15(target, opcode, value)) != ERROR_OK)
 552                         {
 553                                 command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
 554                                 return ERROR_OK;
 555                         }
 556                         command_print(cmd_ctx, "0x%8.8" PRIx32 ": 0x%8.8" PRIx32 "", opcode, value);
 557                 }
 558         }
 559
 560         return ERROR_OK;
 561 }
 562
 563 int arm720t_handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 564 {
 565         target_t *target = get_current_target(cmd_ctx);
 566         armv4_5_common_t *armv4_5;
 567         arm7_9_common_t *arm7_9;
 568         arm7tdmi_common_t *arm7tdmi;
 569         arm720t_common_t *arm720t;
 570         arm_jtag_t *jtag_info;
 571
 572         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 573         {
 574                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 575                 return ERROR_OK;
 576         }
 577
 578         jtag_info = &arm7_9->jtag_info;
 579
 580         if (target->state != TARGET_HALTED)
 581         {
 582                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 583                 return ERROR_OK;
 584         }
 585
 586         return armv4_5_mmu_handle_virt2phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 587 }
 588
 589 int arm720t_handle_md_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 590 {
 591         target_t *target = get_current_target(cmd_ctx);
 592         armv4_5_common_t *armv4_5;
 593         arm7_9_common_t *arm7_9;
 594         arm7tdmi_common_t *arm7tdmi;
 595         arm720t_common_t *arm720t;
 596         arm_jtag_t *jtag_info;
 597
 598         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 599         {
 600                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 601                 return ERROR_OK;
 602         }
 603
 604         jtag_info = &arm7_9->jtag_info;
 605
 606         if (target->state != TARGET_HALTED)
 607         {
 608                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 609                 return ERROR_OK;
 610         }
 611
 612         return armv4_5_mmu_handle_md_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 613 }
 614
 615 int arm720t_handle_mw_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 616 {
 617         target_t *target = get_current_target(cmd_ctx);
 618         armv4_5_common_t *armv4_5;
 619         arm7_9_common_t *arm7_9;
 620         arm7tdmi_common_t *arm7tdmi;
 621         arm720t_common_t *arm720t;
 622         arm_jtag_t *jtag_info;
 623
 624         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 625         {
 626                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 627                 return ERROR_OK;
 628         }
 629
 630         jtag_info = &arm7_9->jtag_info;
 631
 632         if (target->state != TARGET_HALTED)
 633         {
 634                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 635                 return ERROR_OK;
 636         }
 637
 638         return armv4_5_mmu_handle_mw_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 639 }