* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
+ * Copyright (C) 2009 by Øyvind Harboe *
+ * oyvind.harboe@zylin.com *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
#include "target_type.h"
+/*
+ * ARM720 is an ARM7TDMI-S with MMU and ETM7. For information, see
+ * ARM DDI 0229C especially Chapter 9 about debug support.
+ */
+
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
-/* cli handling */
-int arm720t_register_commands(struct command_context_s *cmd_ctx);
-
-int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int arm720t_handle_virt2phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int arm720t_handle_md_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-int arm720t_handle_mw_phys_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-/* forward declarations */
-int arm720t_target_create(struct target_s *target,Jim_Interp *interp);
-int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
-int arm720t_quit(void);
-int arm720t_arch_state(struct target_s *target);
-int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
-int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
-int arm720t_soft_reset_halt(struct target_s *target);
-
-target_type_t arm720t_target =
-{
- .name = "arm720t",
-
- .poll = arm7_9_poll,
- .arch_state = arm720t_arch_state,
-
- .halt = arm7_9_halt,
- .resume = arm7_9_resume,
- .step = arm7_9_step,
-
- .assert_reset = arm7_9_assert_reset,
- .deassert_reset = arm7_9_deassert_reset,
- .soft_reset_halt = arm720t_soft_reset_halt,
-
- .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
-
- .read_memory = arm720t_read_memory,
- .write_memory = arm720t_write_memory,
- .bulk_write_memory = arm7_9_bulk_write_memory,
- .checksum_memory = arm7_9_checksum_memory,
- .blank_check_memory = arm7_9_blank_check_memory,
-
- .run_algorithm = armv4_5_run_algorithm,
-
- .add_breakpoint = arm7_9_add_breakpoint,
- .remove_breakpoint = arm7_9_remove_breakpoint,
- .add_watchpoint = arm7_9_add_watchpoint,
- .remove_watchpoint = arm7_9_remove_watchpoint,
-
- .register_commands = arm720t_register_commands,
- .target_create = arm720t_target_create,
- .init_target = arm720t_init_target,
- .examine = arm7tdmi_examine,
- .quit = arm720t_quit
-};
-
-int arm720t_scan_cp15(target_t *target, uint32_t out, uint32_t *in, int instruction, int clock)
+static int arm720t_scan_cp15(struct target *target,
+ uint32_t out, uint32_t *in, int instruction, int clock)
{
- int retval = ERROR_OK;
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm_jtag_t *jtag_info = &arm7_9->jtag_info;
- scan_field_t fields[2];
+ int retval;
+ struct arm720t_common *arm720t = target_to_arm720(target);
+ struct arm_jtag *jtag_info;
+ struct scan_field fields[2];
uint8_t out_buf[4];
uint8_t instruction_buf = instruction;
+ jtag_info = &arm720t->arm7tdmi_common.arm7_9_common.jtag_info;
+
buf_set_u32(out_buf, 0, 32, flip_u32(out, 32));
jtag_set_end_state(TAP_DRPAUSE);
return ERROR_OK;
}
-int arm720t_read_cp15(target_t *target, uint32_t opcode, uint32_t *value)
+static int arm720t_read_cp15(struct target *target, uint32_t opcode, uint32_t *value)
{
/* fetch CP15 opcode */
arm720t_scan_cp15(target, opcode, NULL, 1, 1);
return ERROR_OK;
}
-int arm720t_write_cp15(target_t *target, uint32_t opcode, uint32_t value)
+static int arm720t_write_cp15(struct target *target, uint32_t opcode, uint32_t value)
{
/* fetch CP15 opcode */
arm720t_scan_cp15(target, opcode, NULL, 1, 1);
return ERROR_OK;
}
-uint32_t arm720t_get_ttb(target_t *target)
+static uint32_t arm720t_get_ttb(struct target *target)
{
uint32_t ttb = 0x0;
return ttb;
}
-void arm720t_disable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
+static void arm720t_disable_mmu_caches(struct target *target,
+ int mmu, int d_u_cache, int i_cache)
{
uint32_t cp15_control;
arm720t_write_cp15(target, 0xee010f10, cp15_control);
}
-void arm720t_enable_mmu_caches(target_t *target, int mmu, int d_u_cache, int i_cache)
+static void arm720t_enable_mmu_caches(struct target *target,
+ int mmu, int d_u_cache, int i_cache)
{
uint32_t cp15_control;
arm720t_write_cp15(target, 0xee010f10, cp15_control);
}
-void arm720t_post_debug_entry(target_t *target)
+static void arm720t_post_debug_entry(struct target *target)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
- arm720t_common_t *arm720t = arm7tdmi->arch_info;
+ struct arm720t_common *arm720t = target_to_arm720(target);
/* examine cp15 control reg */
arm720t_read_cp15(target, 0xee110f10, &arm720t->cp15_control_reg);
jtag_execute_queue();
}
-void arm720t_pre_restore_context(target_t *target)
+static void arm720t_pre_restore_context(struct target *target)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
- arm720t_common_t *arm720t = arm7tdmi->arch_info;
+ struct arm720t_common *arm720t = target_to_arm720(target);
/* restore i/d fault status and address register */
arm720t_write_cp15(target, 0xee050f10, arm720t->fsr_reg);
arm720t_write_cp15(target, 0xee060f10, arm720t->far_reg);
}
-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)
+static int arm720t_verify_pointer(struct command_context_s *cmd_ctx,
+ struct arm720t_common *arm720t)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9;
- arm7tdmi_common_t *arm7tdmi;
- arm720t_common_t *arm720t;
-
- if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
- {
- return -1;
- }
-
- arm7_9 = armv4_5->arch_info;
- if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC)
- {
- return -1;
- }
-
- arm7tdmi = arm7_9->arch_info;
- if (arm7tdmi->common_magic != ARM7TDMI_COMMON_MAGIC)
- {
- return -1;
+ if (arm720t->common_magic != ARM720T_COMMON_MAGIC) {
+ command_print(cmd_ctx, "target is not an ARM720");
+ return ERROR_TARGET_INVALID;
}
-
- arm720t = arm7tdmi->arch_info;
- if (arm720t->common_magic != ARM720T_COMMON_MAGIC)
- {
- return -1;
- }
-
- *armv4_5_p = armv4_5;
- *arm7_9_p = arm7_9;
- *arm7tdmi_p = arm7tdmi;
- *arm720t_p = arm720t;
-
return ERROR_OK;
}
-int arm720t_arch_state(struct target_s *target)
+static int arm720t_arch_state(struct target *target)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
- arm720t_common_t *arm720t = arm7tdmi->arch_info;
+ struct arm720t_common *arm720t = target_to_arm720(target);
+ struct armv4_5_common_s *armv4_5;
- char *state[] =
+ static const char *state[] =
{
"disabled", "enabled"
};
- if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC)
- {
- LOG_ERROR("BUG: called for a non-ARMv4/5 target");
- exit(-1);
- }
+ armv4_5 = &arm720t->arm7tdmi_common.arm7_9_common.armv4_5_common;
LOG_USER("target halted in %s state due to %s, current mode: %s\n"
"cpsr: 0x%8.8" PRIx32 " pc: 0x%8.8" PRIx32 "\n"
return ERROR_OK;
}
-int arm720t_read_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+static int arm720_mmu(struct target *target, int *enabled)
+{
+ if (target->state != TARGET_HALTED) {
+ LOG_ERROR("%s: target not halted", __func__);
+ return ERROR_TARGET_INVALID;
+ }
+
+ *enabled = target_to_arm720(target)->armv4_5_mmu.mmu_enabled;
+ return ERROR_OK;
+}
+
+static int arm720_virt2phys(struct target *target,
+ uint32_t virt, uint32_t *phys)
+{
+ /** @todo Implement this! */
+ LOG_ERROR("%s: not implemented", __func__);
+ return ERROR_FAIL;
+}
+
+static int arm720t_read_memory(struct target *target,
+ uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
int retval;
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
- arm720t_common_t *arm720t = arm7tdmi->arch_info;
+ struct arm720t_common *arm720t = target_to_arm720(target);
/* disable cache, but leave MMU enabled */
if (arm720t->armv4_5_mmu.armv4_5_cache.d_u_cache_enabled)
return retval;
}
-int arm720t_write_memory(struct target_s *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+static int arm720t_read_phys_memory(struct target *target,
+ uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
{
- int retval;
+ struct arm720t_common *arm720t = target_to_arm720(target);
- if ((retval = arm7_9_write_memory(target, address, size, count, buffer)) != ERROR_OK)
- return retval;
+ return armv4_5_mmu_read_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
+}
- return retval;
+static int arm720t_write_phys_memory(struct target *target,
+ uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+{
+ struct arm720t_common *arm720t = target_to_arm720(target);
+
+ return armv4_5_mmu_write_physical(target, &arm720t->armv4_5_mmu, address, size, count, buffer);
}
-int arm720t_soft_reset_halt(struct target_s *target)
+static int arm720t_soft_reset_halt(struct target *target)
{
int retval = ERROR_OK;
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9 = armv4_5->arch_info;
- arm7tdmi_common_t *arm7tdmi = arm7_9->arch_info;
- arm720t_common_t *arm720t = arm7tdmi->arch_info;
- reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT];
+ struct arm720t_common *arm720t = target_to_arm720(target);
+ struct reg *dbg_stat = &arm720t->arm7tdmi_common.arm7_9_common
+ .eice_cache->reg_list[EICE_DBG_STAT];
+ struct armv4_5_common_s *armv4_5 = &arm720t->arm7tdmi_common
+ .arm7_9_common.armv4_5_common;
if ((retval = target_halt(target)) != ERROR_OK)
{
return ERROR_OK;
}
-int arm720t_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
+static int arm720t_init_target(struct command_context_s *cmd_ctx, struct target *target)
{
- arm7tdmi_init_target(cmd_ctx, target);
-
- return ERROR_OK;
-}
-
-int arm720t_quit(void)
-{
- return ERROR_OK;
+ return arm7tdmi_init_target(cmd_ctx, target);
}
-int arm720t_init_arch_info(target_t *target, arm720t_common_t *arm720t, jtag_tap_t *tap)
+static int arm720t_init_arch_info(struct target *target,
+ struct arm720t_common *arm720t, struct jtag_tap *tap)
{
- arm7tdmi_common_t *arm7tdmi = &arm720t->arm7tdmi_common;
- arm7_9_common_t *arm7_9 = &arm7tdmi->arm7_9_common;
+ struct arm7tdmi_common *arm7tdmi = &arm720t->arm7tdmi_common;
+ struct arm7_9_common *arm7_9 = &arm7tdmi->arm7_9_common;
arm7tdmi_init_arch_info(target, arm7tdmi, tap);
- arm7tdmi->arch_info = arm720t;
arm720t->common_magic = ARM720T_COMMON_MAGIC;
arm7_9->post_debug_entry = arm720t_post_debug_entry;
return ERROR_OK;
}
-int arm720t_target_create(struct target_s *target, Jim_Interp *interp)
+static int arm720t_target_create(struct target *target, Jim_Interp *interp)
{
- arm720t_common_t *arm720t = calloc(1,sizeof(arm720t_common_t));
+ struct arm720t_common *arm720t = calloc(1, sizeof(*arm720t));
- arm720t_init_arch_info(target, arm720t, target->tap);
-
- return ERROR_OK;
+ arm720t->arm7tdmi_common.arm7_9_common.armv4_5_common.is_armv4 = true;
+ return arm720t_init_arch_info(target, arm720t, target->tap);
}
-int arm720t_register_commands(struct command_context_s *cmd_ctx)
+COMMAND_HANDLER(arm720t_handle_cp15_command)
{
int retval;
- command_t *arm720t_cmd;
-
-
- retval = arm7tdmi_register_commands(cmd_ctx);
-
- arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t", NULL, COMMAND_ANY, "arm720t specific commands");
-
- register_command(cmd_ctx, arm720t_cmd, "cp15", arm720t_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <opcode> [value]");
- register_command(cmd_ctx, arm720t_cmd, "virt2phys", arm720t_handle_virt2phys_command, COMMAND_EXEC, "translate va to pa <va>");
-
- register_command(cmd_ctx, arm720t_cmd, "mdw_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory words <physical addr> [count]");
- register_command(cmd_ctx, arm720t_cmd, "mdh_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory half-words <physical addr> [count]");
- register_command(cmd_ctx, arm720t_cmd, "mdb_phys", arm720t_handle_md_phys_command, COMMAND_EXEC, "display memory bytes <physical addr> [count]");
-
- register_command(cmd_ctx, arm720t_cmd, "mww_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory word <physical addr> <value>");
- register_command(cmd_ctx, arm720t_cmd, "mwh_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory half-word <physical addr> <value>");
- register_command(cmd_ctx, arm720t_cmd, "mwb_phys", arm720t_handle_mw_phys_command, COMMAND_EXEC, "write memory byte <physical addr> <value>");
-
- return ERROR_OK;
-}
+ struct target *target = get_current_target(cmd_ctx);
+ struct arm720t_common *arm720t = target_to_arm720(target);
+ struct arm_jtag *jtag_info;
-int arm720t_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
-{
- int retval;
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm7tdmi_common_t *arm7tdmi;
- arm720t_common_t *arm720t;
- arm_jtag_t *jtag_info;
-
- if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
- {
- command_print(cmd_ctx, "current target isn't an ARM720t target");
- return ERROR_OK;
- }
+ retval = arm720t_verify_pointer(cmd_ctx, arm720t);
+ if (retval != ERROR_OK)
+ return retval;
- jtag_info = &arm7_9->jtag_info;
+ jtag_info = &arm720t->arm7tdmi_common.arm7_9_common.jtag_info;
if (target->state != TARGET_HALTED)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
+ command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
/* one or more argument, access a single register (write if second argument is given */
if (argc >= 1)
{
- uint32_t opcode = strtoul(args[0], NULL, 0);
+ uint32_t opcode;
+ COMMAND_PARSE_NUMBER(u32, args[0], opcode);
if (argc == 1)
{
}
else if (argc == 2)
{
- uint32_t value = strtoul(args[1], NULL, 0);
+ uint32_t value;
+ COMMAND_PARSE_NUMBER(u32, args[1], value);
+
if ((retval = arm720t_write_cp15(target, opcode, value)) != ERROR_OK)
{
command_print(cmd_ctx, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
return ERROR_OK;
}
-int arm720t_handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
+static int arm720t_mrc(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
{
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm7tdmi_common_t *arm7tdmi;
- arm720t_common_t *arm720t;
- arm_jtag_t *jtag_info;
-
- if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
+ if (cpnum!=15)
{
- command_print(cmd_ctx, "current target isn't an ARM720t target");
- return ERROR_OK;
+ LOG_ERROR("Only cp15 is supported");
+ return ERROR_FAIL;
}
- jtag_info = &arm7_9->jtag_info;
+ return arm720t_read_cp15(target, mrc_opcode(cpnum, op1, op2, CRn, CRm), value);
- if (target->state != TARGET_HALTED)
+}
+
+static int arm720t_mcr(struct target *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
+{
+ if (cpnum!=15)
{
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
- return ERROR_OK;
+ LOG_ERROR("Only cp15 is supported");
+ return ERROR_FAIL;
}
- return armv4_5_mmu_handle_virt2phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
+ return arm720t_write_cp15(target, mrc_opcode(cpnum, op1, op2, CRn, CRm), value);
}
-int arm720t_handle_md_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
+static int arm720t_register_commands(struct command_context_s *cmd_ctx)
{
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm7tdmi_common_t *arm7tdmi;
- arm720t_common_t *arm720t;
- arm_jtag_t *jtag_info;
-
- if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
- {
- command_print(cmd_ctx, "current target isn't an ARM720t target");
- return ERROR_OK;
- }
+ int retval;
+ command_t *arm720t_cmd;
- jtag_info = &arm7_9->jtag_info;
- if (target->state != TARGET_HALTED)
- {
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
- return ERROR_OK;
- }
+ retval = arm7_9_register_commands(cmd_ctx);
- return armv4_5_mmu_handle_md_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
+ arm720t_cmd = register_command(cmd_ctx, NULL, "arm720t",
+ NULL, COMMAND_ANY,
+ "arm720t specific commands");
+
+ register_command(cmd_ctx, arm720t_cmd, "cp15",
+ arm720t_handle_cp15_command, COMMAND_EXEC,
+ "display/modify cp15 register <opcode> [value]");
+
+ return ERROR_OK;
}
-int arm720t_handle_mw_phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc)
+/** Holds methods for ARM720 targets. */
+struct target_type arm720t_target =
{
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm7tdmi_common_t *arm7tdmi;
- arm720t_common_t *arm720t;
- arm_jtag_t *jtag_info;
-
- if (arm720t_get_arch_pointers(target, &armv4_5, &arm7_9, &arm7tdmi, &arm720t) != ERROR_OK)
- {
- command_print(cmd_ctx, "current target isn't an ARM720t target");
- return ERROR_OK;
- }
+ .name = "arm720t",
- jtag_info = &arm7_9->jtag_info;
+ .poll = arm7_9_poll,
+ .arch_state = arm720t_arch_state,
- if (target->state != TARGET_HALTED)
- {
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
- return ERROR_OK;
- }
+ .halt = arm7_9_halt,
+ .resume = arm7_9_resume,
+ .step = arm7_9_step,
- return armv4_5_mmu_handle_mw_phys_command(cmd_ctx, cmd, args, argc, target, &arm720t->armv4_5_mmu);
-}
+ .assert_reset = arm7_9_assert_reset,
+ .deassert_reset = arm7_9_deassert_reset,
+ .soft_reset_halt = arm720t_soft_reset_halt,
+
+ .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
+
+ .read_memory = arm720t_read_memory,
+ .write_memory = arm7_9_write_memory,
+ .read_phys_memory = arm720t_read_phys_memory,
+ .write_phys_memory = arm720t_write_phys_memory,
+ .mmu = arm720_mmu,
+ .virt2phys = arm720_virt2phys,
+
+ .bulk_write_memory = arm7_9_bulk_write_memory,
+ .checksum_memory = arm7_9_checksum_memory,
+ .blank_check_memory = arm7_9_blank_check_memory,
+
+ .run_algorithm = armv4_5_run_algorithm,
+
+ .add_breakpoint = arm7_9_add_breakpoint,
+ .remove_breakpoint = arm7_9_remove_breakpoint,
+ .add_watchpoint = arm7_9_add_watchpoint,
+ .remove_watchpoint = arm7_9_remove_watchpoint,
+
+ .register_commands = arm720t_register_commands,
+ .target_create = arm720t_target_create,
+ .init_target = arm720t_init_target,
+ .examine = arm7tdmi_examine,
+ .mrc = arm720t_mrc,
+ .mcr = arm720t_mcr,
+
+};
Code Review / openocd.git / blobdiff