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 "jtag.h"
  26 #include "log.h"
  27
  28 #include <stdlib.h>
  29 #include <string.h>
  30
  31 #if 0
  32 #define _DEBUG_INSTRUCTION_EXECUTION_
  33 #endif
  34
  35 /* cli handling */
  36 int arm720t_register_commands(struct command_context_s *cmd_ctx);
  37
  38 int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  39 int arm720t_handle_virt2phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  40 int arm720t_handle_md_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  41 int arm720t_handle_mw_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
  42
  43 /* forward declarations */
  44 int arm720t_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target);
  45 int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
  46 int arm720t_quit();
  47 int arm720t_arch_state(struct target_s *target, char *buf, int buf_size);
  48 int arm720t_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
  49 int arm720t_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer);
  50 int arm720t_soft_reset_halt(struct target_s *target);
  51
  52 target_type_t arm720t_target =
  53 {
  54         .name = "arm720t",
  55
  56         .poll = arm7_9_poll,
  57         .arch_state = arm720t_arch_state,
  58
  59         .halt = arm7_9_halt,
  60         .resume = arm7_9_resume,
  61         .step = arm7_9_step,
  62
  63         .assert_reset = arm7_9_assert_reset,
  64         .deassert_reset = arm7_9_deassert_reset,
  65         .soft_reset_halt = arm720t_soft_reset_halt,
  66         .prepare_reset_halt = arm7_9_prepare_reset_halt,
  67
  68         .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
  69
  70         .read_memory = arm720t_read_memory,
  71         .write_memory = arm720t_write_memory,
  72         .bulk_write_memory = arm7_9_bulk_write_memory,
  73
  74         .run_algorithm = armv4_5_run_algorithm,
  75
  76         .add_breakpoint = arm7_9_add_breakpoint,
  77         .remove_breakpoint = arm7_9_remove_breakpoint,
  78         .add_watchpoint = arm7_9_add_watchpoint,
  79         .remove_watchpoint = arm7_9_remove_watchpoint,
  80
  81         .register_commands = arm720t_register_commands,
  82         .target_command = arm720t_target_command,
  83         .init_target = arm720t_init_target,
  84         .quit = arm720t_quit
  85 };
  86
  87 int arm720t_scan_cp15(target_t *target, u32 out, u32 *in, int instruction, int clock)
  88 {
  89         armv4_5_common_t *armv4_5 = target->arch_info;
  90         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
  91         arm_jtag_t *jtag_info = &arm7_9->jtag_info;
  92         scan_field_t fields[2];
  93         u8 out_buf[4];
  94         u8 instruction_buf = instruction;
  95
  96         buf_set_u32(out_buf, 0, 32, flip_u32(out, 32));
  97
  98         jtag_add_end_state(TAP_PD);
  99         arm_jtag_scann(jtag_info, 0xf);
 100         arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
 101
 102         fields[0].device = jtag_info->chain_pos;
 103         fields[0].num_bits = 1;
 104         fields[0].out_value = &instruction_buf;
 105         fields[0].out_mask = NULL;
 106         fields[0].in_value = NULL;
 107         fields[0].in_check_value = NULL;
 108         fields[0].in_check_mask = NULL;
 109         fields[0].in_handler = NULL;
 110         fields[0].in_handler_priv = NULL;
 111
 112         fields[1].device = jtag_info->chain_pos;
 113         fields[1].num_bits = 32;
 114         fields[1].out_value = out_buf;
 115         fields[1].out_mask = NULL;
 116         fields[1].in_value = NULL;
 117         if (in)
 118         {
 119                 fields[1].in_handler = arm_jtag_buf_to_u32_flip;
 120                 fields[1].in_handler_priv = in;
 121         } else
 122         {
 123                 fields[1].in_handler = NULL;
 124                 fields[1].in_handler_priv = NULL;
 125         }
 126         fields[1].in_check_value = NULL;
 127         fields[1].in_check_mask = NULL;
 128
 129         jtag_add_dr_scan(2, fields, -1, NULL);
 130
 131         if (clock)
 132                 jtag_add_runtest(0, -1);
 133
 134 #ifdef _DEBUG_INSTRUCTION_EXECUTION_
 135         jtag_execute_queue();
 136
 137         if (in)
 138                 DEBUG("out: %8.8x, in: %8.8x, instruction: %i, clock: %i", out, *in, instruction, clock);
 139         else
 140                 DEBUG("out: %8.8x, instruction: %i, clock: %i", out, instruction, clock);
 141 #else
 142                 DEBUG("out: %8.8x, instruction: %i, clock: %i", out, instruction, clock);
 143 #endif
 144
 145         return ERROR_OK;
 146 }
 147
 148 int arm720t_read_cp15(target_t *target, u32 opcode, u32 *value)
 149 {
 150         /* fetch CP15 opcode */
 151         arm720t_scan_cp15(target, opcode, NULL, 1, 1);
 152         /* "DECODE" stage */
 153         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 154         /* "EXECUTE" stage (1) */
 155         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 0);
 156         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 157         /* "EXECUTE" stage (2) */
 158         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 159         /* "EXECUTE" stage (3), CDATA is read */
 160         arm720t_scan_cp15(target, ARMV4_5_NOP, value, 1, 1);
 161
 162         return ERROR_OK;
 163 }
 164
 165 int arm720t_write_cp15(target_t *target, u32 opcode, u32 value)
 166 {
 167         /* fetch CP15 opcode */
 168         arm720t_scan_cp15(target, opcode, NULL, 1, 1);
 169         /* "DECODE" stage */
 170         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 171         /* "EXECUTE" stage (1) */
 172         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 0);
 173         arm720t_scan_cp15(target, 0x0, NULL, 0, 1);
 174         /* "EXECUTE" stage (2) */
 175         arm720t_scan_cp15(target, value, NULL, 0, 1);
 176         arm720t_scan_cp15(target, ARMV4_5_NOP, NULL, 1, 1);
 177
 178         return ERROR_OK;
 179 }
 180
 181 u32 arm720t_get_ttb(target_t *target)
 182 {
 183         u32 ttb = 0x0;
 184
 185         arm720t_read_cp15(target, 0xee120f10, &ttb);
 186         jtag_execute_queue();
 187
 188         ttb &= 0xffffc000;
 189
 190         return ttb;
 191 }
 192
 193 void arm720t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
 194 {
 195         u32 cp15_control;
 196
 197         /* read cp15 control register */
 198         arm720t_read_cp15(target, 0xee110f10, &cp15_control);
 199         jtag_execute_queue();
 200
 201         if (mmu)
 202                 cp15_control &= ~0x1U;
 203
 204         if (d_u_cache || i_cache)
 205                 cp15_control &= ~0x4U;
 206
 207         arm720t_write_cp15(target, 0xee010f10, cp15_control);
 208 }
 209
 210 void arm720t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
 211 {
 212         u32 cp15_control;
 213
 214         /* read cp15 control register */
 215         arm720t_read_cp15(target, 0xee110f10, &cp15_control);
 216         jtag_execute_queue();
 217
 218         if (mmu)
 219                 cp15_control |= 0x1U;
 220
 221         if (d_u_cache || i_cache)
 222                 cp15_control |= 0x4U;
 223
 224         arm720t_write_cp15(target, 0xee010f10, cp15_control);
 225 }
 226
 227 void arm720t_post_debug_entry(target_t *target)
 228 {
 229         armv4_5_common_t *armv4_5 = target->arch_info;
 230         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 231         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 232         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 233
 234         /* examine cp15 control reg */
 235         arm720t_read_cp15(target, 0xee110f10, &arm720t->cp15_control_reg);
 236         jtag_execute_queue();
 237         DEBUG("cp15_control_reg: %8.8x", arm720t->cp15_control_reg);
 238
 239         arm720t->armv4_5_mmu.mmu_enabled = (arm720t->cp15_control_reg & 0x1U) ? 1 : 0;
 240         arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = (arm720t->cp15_control_reg & 0x4U) ? 1 : 0;
 241         arm720t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
 242
 243         /* save i/d fault status and address register */
 244         arm720t_read_cp15(target, 0xee150f10, &arm720t->fsr);
 245         arm720t_read_cp15(target, 0xee160f10, &arm720t->far);
 246         jtag_execute_queue();
 247 }
 248
 249 void arm720t_pre_restore_context(target_t *target)
 250 {
 251         armv4_5_common_t *armv4_5 = target->arch_info;
 252         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 253         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 254         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 255
 256         /* restore i/d fault status and address register */
 257         arm720t_write_cp15(target, 0xee050f10, arm720t->fsr);
 258         arm720t_write_cp15(target, 0xee060f10, arm720t->far);
 259 }
 260
 261 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)
 262 {
 263         armv4_5_common_t *armv4_5 = target->arch_info;
 264         arm7_9_common_t *arm7_9;
 265         arm7tdmi_common_t *arm7tdmi;
 266         arm720t_common_t *arm720t;
 267
 268         if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
 269         {
 270                 return -1;
 271         }
 272
 273         arm7_9 = armv4_5->arch_info;
 274         if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC)
 275         {
 276                 return -1;
 277         }
 278
 279         arm7tdmi = arm7_9->arch_info;
 280         if (arm7tdmi->common_magic != ARM7TDMI_COMMON_MAGIC)
 281         {
 282                 return -1;
 283         }
 284
 285         arm720t = arm7tdmi->arch_info;
 286         if (arm720t->common_magic != ARM720T_COMMON_MAGIC)
 287         {
 288                 return -1;
 289         }
 290
 291         *armv4_5_p = armv4_5;
 292         *arm7_9_p = arm7_9;
 293         *arm7tdmi_p = arm7tdmi;
 294         *arm720t_p = arm720t;
 295
 296         return ERROR_OK;
 297 }
 298
 299 int arm720t_arch_state(struct target_s *target, char *buf, int buf_size)
 300 {
 301         armv4_5_common_t *armv4_5 = target->arch_info;
 302         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 303         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 304         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 305
 306         char *state[] =
 307         {
 308                 "disabled", "enabled"
 309         };
 310
 311         if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
 312         {
 313                 ERROR("BUG: called for a non-ARMv4/5 target");
 314                 exit(-1);
 315         }
 316
 317         snprintf(buf, buf_size,
 318                         "target halted in %s state due to %s, current mode: %s\n"
 319                         "cpsr: 0x%8.8x pc: 0x%8.8x\n"
 320                         "MMU: %s, Cache: %s",
 321                          armv4_5_state_strings[armv4_5->core_state],
 322                          target_debug_reason_strings[target->debug_reason],
 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, u32 address, u32 size, u32 count, u8 *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, u32 address, u32 size, u32 count, u8 *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         armv4_5_common_t *armv4_5 = target->arch_info;
 365         arm7_9_common_t *arm7_9 = armv4_5->arch_info;
 366         arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
 367         arm720t_common_t *arm720t = arm7tdmi->arch_info;
 368         reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
 369
 370         if (target->state == TARGET_RUNNING)
 371         {
 372                 target->type->halt(target);
 373         }
 374
 375         while (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) == 0)
 376         {
 377                 embeddedice_read_reg(dbg_stat);
 378                 jtag_execute_queue();
 379         }
 380
 381         target->state = TARGET_HALTED;
 382
 383         /* SVC, ARM state, IRQ and FIQ disabled */
 384         buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8, 0xd3);
 385         armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1;
 386         armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1;
 387
 388         /* start fetching from 0x0 */
 389         buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, 0x0);
 390         armv4_5->core_cache->reg_list[15].dirty = 1;
 391         armv4_5->core_cache->reg_list[15].valid = 1;
 392
 393         armv4_5->core_mode = ARMV4_5_MODE_SVC;
 394         armv4_5->core_state = ARMV4_5_STATE_ARM;
 395
 396         arm720t_disable_mmu_caches(target, 1, 1, 1);
 397         arm720t->armv4_5_mmu.mmu_enabled = 0;
 398         arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled = 0;
 399         arm720t->armv4_5_mmu.armv4_5_cache.i_cache_enabled = 0;
 400
 401         target_call_event_callbacks(target, TARGET_EVENT_HALTED);
 402
 403         return ERROR_OK;
 404 }
 405
 406 int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
 407 {
 408         arm7tdmi_init_target(cmd_ctx, target);
 409
 410         return ERROR_OK;
 411
 412 }
 413
 414 int arm720t_quit()
 415 {
 416
 417         return ERROR_OK;
 418 }
 419
 420 int arm720t_init_arch_info(target_t *target, arm720t_common_t *arm720t, int chain_pos, char *variant)
 421 {
 422         arm7tdmi_common_t *arm7tdmi = &arm720t->arm7tdmi_common;
 423         arm7_9_common_t *arm7_9 = &arm7tdmi->arm7_9_common;
 424
 425         arm7tdmi_init_arch_info(target, arm7tdmi, chain_pos, variant);
 426
 427         arm7tdmi->arch_info = arm720t;
 428         arm720t->common_magic = ARM720T_COMMON_MAGIC;
 429
 430         arm7_9->post_debug_entry = arm720t_post_debug_entry;
 431         arm7_9->pre_restore_context = arm720t_pre_restore_context;
 432
 433         arm720t->armv4_5_mmu.armv4_5_cache.ctype = -1;
 434         arm720t->armv4_5_mmu.get_ttb = arm720t_get_ttb;
 435         arm720t->armv4_5_mmu.read_memory = arm7_9_read_memory;
 436         arm720t->armv4_5_mmu.write_memory = arm7_9_write_memory;
 437         arm720t->armv4_5_mmu.disable_mmu_caches = arm720t_disable_mmu_caches;
 438         arm720t->armv4_5_mmu.enable_mmu_caches = arm720t_enable_mmu_caches;
 439         arm720t->armv4_5_mmu.has_tiny_pages = 0;
 440         arm720t->armv4_5_mmu.mmu_enabled = 0;
 441
 442         return ERROR_OK;
 443 }
 444
 445 int arm720t_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target)
 446 {
 447         int chain_pos;
 448         char *variant = NULL;
 449         arm720t_common_t *arm720t = malloc(sizeof(arm720t_common_t));
 450
 451         if (argc < 4)
 452         {
 453                 ERROR("'target arm720t' requires at least one additional argument");
 454                 exit(-1);
 455         }
 456
 457         chain_pos = strtoul(args[3], NULL, 0);
 458
 459         if (argc >= 5)
 460                 variant = args[4];
 461
 462         DEBUG("chain_pos: %i, variant: %s", chain_pos, variant);
 463
 464         arm720t_init_arch_info(target, arm720t, chain_pos, variant);
 465
 466         return ERROR_OK;
 467 }
 468
 469 int arm720t_register_commands(struct command_context_s *cmd_ctx)
 470 {
 471         int retval;
 472         command_t *arm720t_cmd;
 473
 474
 475         retval = arm7tdmi_register_commands(cmd_ctx);
 476
 477         arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t", NULL, COMMAND_ANY, "arm720t specific commands");
 478
 479         register_command(cmd_ctx, arm720t_cmd, "cp15", arm720t_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <opcode> [value]");
 480         register_command(cmd_ctx, arm720t_cmd, "virt2phys", arm720t_handle_virt2phys_command, COMMAND_EXEC, "translate va to pa <va>");
 481
 482         register_command(cmd_ctx, arm720t_cmd, "mdw_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory words <physical addr> [count]");
 483         register_command(cmd_ctx, arm720t_cmd, "mdh_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory half-words <physical addr> [count]");
 484         register_command(cmd_ctx, arm720t_cmd, "mdb_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory bytes <physical addr> [count]");
 485
 486         register_command(cmd_ctx, arm720t_cmd, "mww_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory word <physical addr> <value>");
 487         register_command(cmd_ctx, arm720t_cmd, "mwh_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory half-word <physical addr> <value>");
 488         register_command(cmd_ctx, arm720t_cmd, "mwb_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory byte <physical addr> <value>");
 489
 490         return ERROR_OK;
 491 }
 492
 493 int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
 494 {
 495         int retval;
 496         target_t *target = get_current_target(cmd_ctx);
 497         armv4_5_common_t *armv4_5;
 498         arm7_9_common_t *arm7_9;
 499         arm7tdmi_common_t *arm7tdmi;
 500         arm720t_common_t *arm720t;
 501         arm_jtag_t *jtag_info;
 502
 503         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 504         {
 505                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 506                 return ERROR_OK;
 507         }
 508
 509         jtag_info = &arm7_9->jtag_info;
 510
 511         if (target->state != TARGET_HALTED)
 512         {
 513                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 514                 return ERROR_OK;
 515         }
 516
 517         /* one or more argument, access a single register (write if second argument is given */
 518         if (argc >= 1)
 519         {
 520                 u32 opcode = strtoul(args[0], NULL, 0);
 521
 522                 if (argc == 1)
 523                 {
 524                         u32 value;
 525                         if ((retval = arm720t_read_cp15(target, opcode, &value)) != ERROR_OK)
 526                         {
 527                                 command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8x", opcode);
 528                                 return ERROR_OK;
 529                         }
 530                         jtag_execute_queue();
 531
 532                         command_print(cmd_ctx, "0x%8.8x: 0x%8.8x", opcode, value);
 533                 }
 534                 else if (argc == 2)
 535                 {
 536                         u32 value = strtoul(args[1], NULL, 0);
 537                         if ((retval = arm720t_write_cp15(target, opcode, value)) != ERROR_OK)
 538                         {
 539                                 command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8x", opcode);
 540                                 return ERROR_OK;
 541                         }
 542                         command_print(cmd_ctx, "0x%8.8x: 0x%8.8x", opcode, value);
 543                 }
 544         }
 545
 546         return ERROR_OK;
 547 }
 548
 549 int arm720t_handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 550 {
 551         target_t *target = get_current_target(cmd_ctx);
 552         armv4_5_common_t *armv4_5;
 553         arm7_9_common_t *arm7_9;
 554         arm7tdmi_common_t *arm7tdmi;
 555         arm720t_common_t *arm720t;
 556         arm_jtag_t *jtag_info;
 557
 558         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 559         {
 560                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 561                 return ERROR_OK;
 562         }
 563
 564         jtag_info = &arm7_9->jtag_info;
 565
 566         if (target->state != TARGET_HALTED)
 567         {
 568                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 569                 return ERROR_OK;
 570         }
 571
 572         return armv4_5_mmu_handle_virt2phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 573 }
 574
 575 int arm720t_handle_md_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 576 {
 577         target_t *target = get_current_target(cmd_ctx);
 578         armv4_5_common_t *armv4_5;
 579         arm7_9_common_t *arm7_9;
 580         arm7tdmi_common_t *arm7tdmi;
 581         arm720t_common_t *arm720t;
 582         arm_jtag_t *jtag_info;
 583
 584         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 585         {
 586                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 587                 return ERROR_OK;
 588         }
 589
 590         jtag_info = &arm7_9->jtag_info;
 591
 592         if (target->state != TARGET_HALTED)
 593         {
 594                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 595                 return ERROR_OK;
 596         }
 597
 598         return armv4_5_mmu_handle_md_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 599 }
 600
 601 int arm720t_handle_mw_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
 602 {
 603         target_t *target = get_current_target(cmd_ctx);
 604         armv4_5_common_t *armv4_5;
 605         arm7_9_common_t *arm7_9;
 606         arm7tdmi_common_t *arm7tdmi;
 607         arm720t_common_t *arm720t;
 608         arm_jtag_t *jtag_info;
 609
 610         if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
 611         {
 612                 command_print(cmd_ctx, "current target isn't an ARM720t target");
 613                 return ERROR_OK;
 614         }
 615
 616         jtag_info = &arm7_9->jtag_info;
 617
 618         if (target->state != TARGET_HALTED)
 619         {
 620                 command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
 621                 return ERROR_OK;
 622         }
 623
 624         return armv4_5_mmu_handle_mw_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
 625 }
 626