+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
- * 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 *
- * (at your option) any later version. *
- * *
- * This program is distributed in the hope that it will be useful, *
- * but WITHOUT ANY WARRANTY; without even the implied warranty of *
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
- * GNU General Public License for more details. *
- * *
- * You should have received a copy of the GNU General Public License *
- * along with this program; if not, write to the *
- * Free Software Foundation, Inc., *
- * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "arm966e.h"
-
-#include "arm7_9_common.h"
-#include "register.h"
-#include "target.h"
-#include "armv4_5.h"
-#include "embeddedice.h"
-#include "log.h"
-#include "jtag.h"
-#include "arm_jtag.h"
-
-#include <stdlib.h>
-#include <string.h>
+#include "target_type.h"
+#include "arm_opcodes.h"
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
#endif
-/* cli handling */
-int arm966e_register_commands(struct command_context_s *cmd_ctx);
-
-/* forward declarations */
-int arm966e_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target);
-int arm966e_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
-int arm966e_quit(void);
-
-target_type_t arm966e_target =
+int arm966e_init_arch_info(struct target *target, struct arm966e_common *arm966e, struct jtag_tap *tap)
{
- .name = "arm966e",
-
- .poll = arm7_9_poll,
- .arch_state = armv4_5_arch_state,
-
- .target_request_data = arm7_9_target_request_data,
-
- .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 = arm7_9_soft_reset_halt,
- .prepare_reset_halt = arm7_9_prepare_reset_halt,
+ struct arm7_9_common *arm7_9 = &arm966e->arm7_9_common;
- .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
-
- .read_memory = arm7_9_read_memory,
- .write_memory = arm7_9_write_memory,
- .bulk_write_memory = arm7_9_bulk_write_memory,
- .checksum_memory = arm7_9_checksum_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,
+ /* initialize arm7/arm9 specific info (including armv4_5) */
+ arm9tdmi_init_arch_info(target, arm7_9, tap);
- .register_commands = arm966e_register_commands,
- .target_command = arm966e_target_command,
- .init_target = arm966e_init_target,
- .quit = arm966e_quit,
-};
-
-int arm966e_init_target(struct command_context_s *cmd_ctx, struct target_s *target)
-{
- arm9tdmi_init_target(cmd_ctx, target);
-
- return ERROR_OK;
-}
-
-int arm966e_quit(void)
-{
-
- return ERROR_OK;
-}
-
-int arm966e_init_arch_info(target_t *target, arm966e_common_t *arm966e, int chain_pos, char *variant)
-{
- arm9tdmi_common_t *arm9tdmi = &arm966e->arm9tdmi_common;
- arm7_9_common_t *arm7_9 = &arm9tdmi->arm7_9_common;
-
- arm9tdmi_init_arch_info(target, arm9tdmi, chain_pos, variant);
-
- arm9tdmi->arch_info = arm966e;
arm966e->common_magic = ARM966E_COMMON_MAGIC;
-
+
/* The ARM966E-S implements the ARMv5TE architecture which
* has the BKPT instruction, so we don't have to use a watchpoint comparator
*/
arm7_9->arm_bkpt = ARMV5_BKPT(0x0);
arm7_9->thumb_bkpt = ARMV5_T_BKPT(0x0) & 0xffff;
-
- arm7_9->sw_bkpts_use_wp = 0;
- arm7_9->sw_bkpts_enabled = 1;
-
+
return ERROR_OK;
}
-int arm966e_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target)
+static int arm966e_target_create(struct target *target, Jim_Interp *interp)
{
- int chain_pos;
- char *variant = NULL;
- arm966e_common_t *arm966e = malloc(sizeof(arm966e_common_t));
- memset(arm966e, 0, sizeof(*arm966e));
-
- if (argc < 4)
- {
- LOG_ERROR("'target arm966e' requires at least one additional argument");
- exit(-1);
- }
-
- chain_pos = strtoul(args[3], NULL, 0);
-
- if (argc >= 5)
- variant = args[4];
-
- LOG_DEBUG("chain_pos: %i, variant: %s", chain_pos, variant);
-
- arm966e_init_arch_info(target, arm966e, chain_pos, variant);
+ struct arm966e_common *arm966e = calloc(1, sizeof(struct arm966e_common));
- return ERROR_OK;
+ return arm966e_init_arch_info(target, arm966e, target->tap);
}
-int arm966e_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm7_9_common_t **arm7_9_p, arm9tdmi_common_t **arm9tdmi_p, arm966e_common_t **arm966e_p)
+static void arm966e_deinit_target(struct target *target)
{
- armv4_5_common_t *armv4_5 = target->arch_info;
- arm7_9_common_t *arm7_9;
- arm9tdmi_common_t *arm9tdmi;
- arm966e_common_t *arm966e;
-
- 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;
- }
-
- arm9tdmi = arm7_9->arch_info;
- if (arm9tdmi->common_magic != ARM9TDMI_COMMON_MAGIC)
- {
- return -1;
- }
-
- arm966e = arm9tdmi->arch_info;
- if (arm966e->common_magic != ARM966E_COMMON_MAGIC)
- {
- return -1;
+ struct arm *arm = target_to_arm(target);
+ struct arm966e_common *arm966e = target_to_arm966(target);
+
+ arm7_9_deinit(target);
+ arm_free_reg_cache(arm);
+ free(arm966e);
+}
+
+static int arm966e_verify_pointer(struct command_invocation *cmd,
+ struct arm966e_common *arm966e)
+{
+ if (arm966e->common_magic != ARM966E_COMMON_MAGIC) {
+ command_print(cmd, "target is not an ARM966");
+ return ERROR_TARGET_INVALID;
}
-
- *armv4_5_p = armv4_5;
- *arm7_9_p = arm7_9;
- *arm9tdmi_p = arm9tdmi;
- *arm966e_p = arm966e;
-
return ERROR_OK;
}
-int arm966e_read_cp15(target_t *target, int reg_addr, u32 *value)
+/*
+ * REVISIT: The "read_cp15" and "write_cp15" commands could hook up
+ * to eventual mrc() and mcr() routines ... the reg_addr values being
+ * constructed (for CP15 only) from Opcode_1, Opcode_2, and CRn values.
+ * See section 7.3 of the ARM966E-S TRM.
+ */
+
+static int arm966e_read_cp15(struct target *target, int reg_addr, uint32_t *value)
{
- 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[3];
- u8 reg_addr_buf = reg_addr & 0x3f;
- u8 nr_w_buf = 0;
-
- jtag_add_end_state(TAP_RTI);
- arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
-
- fields[0].device = jtag_info->chain_pos;
+ int retval = ERROR_OK;
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+ struct arm_jtag *jtag_info = &arm7_9->jtag_info;
+ struct scan_field fields[3];
+ uint8_t reg_addr_buf = reg_addr & 0x3f;
+ uint8_t nr_w_buf = 0;
+
+ retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+
fields[0].num_bits = 32;
+ /* REVISIT: table 7-2 shows that bits 31-31 need to be
+ * specified for accessing BIST registers ...
+ */
fields[0].out_value = NULL;
- fields[0].out_mask = NULL;
fields[0].in_value = NULL;
- fields[0].in_check_value = NULL;
- fields[0].in_check_mask = NULL;
- fields[0].in_handler = NULL;
- fields[0].in_handler_priv = NULL;
- fields[1].device = jtag_info->chain_pos;
fields[1].num_bits = 6;
fields[1].out_value = ®_addr_buf;
- fields[1].out_mask = NULL;
fields[1].in_value = NULL;
- fields[1].in_check_value = NULL;
- fields[1].in_check_mask = NULL;
- fields[1].in_handler = NULL;
- fields[1].in_handler_priv = NULL;
- fields[2].device = jtag_info->chain_pos;
fields[2].num_bits = 1;
fields[2].out_value = &nr_w_buf;
- fields[2].out_mask = NULL;
fields[2].in_value = NULL;
- fields[2].in_check_value = NULL;
- fields[2].in_check_mask = NULL;
- fields[2].in_handler = NULL;
- fields[2].in_handler_priv = NULL;
-
- jtag_add_dr_scan(3, fields, -1);
- fields[0].in_handler_priv = value;
- fields[0].in_handler = arm_jtag_buf_to_u32;
+ jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
+
+ fields[1].in_value = (uint8_t *)value;
+
+ jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
+
+ jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value);
- jtag_add_dr_scan(3, fields, -1);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
- jtag_execute_queue();
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, *value);
#endif
return ERROR_OK;
}
-int arm966e_write_cp15(target_t *target, int reg_addr, u32 value)
+/* EXPORTED to str9x (flash) */
+int arm966e_write_cp15(struct target *target, int reg_addr, uint32_t value)
{
- 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[3];
- u8 reg_addr_buf = reg_addr & 0x3f;
- u8 nr_w_buf = 1;
- u8 value_buf[4];
-
+ int retval = ERROR_OK;
+ struct arm7_9_common *arm7_9 = target_to_arm7_9(target);
+ struct arm_jtag *jtag_info = &arm7_9->jtag_info;
+ struct scan_field fields[3];
+ uint8_t reg_addr_buf = reg_addr & 0x3f;
+ uint8_t nr_w_buf = 1;
+ uint8_t value_buf[4];
+
buf_set_u32(value_buf, 0, 32, value);
-
- jtag_add_end_state(TAP_RTI);
- arm_jtag_scann(jtag_info, 0xf);
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
- fields[0].device = jtag_info->chain_pos;
+ retval = arm_jtag_scann(jtag_info, 0xf, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = arm_jtag_set_instr(jtag_info->tap, jtag_info->intest_instr, NULL, TAP_IDLE);
+ if (retval != ERROR_OK)
+ return retval;
+
fields[0].num_bits = 32;
fields[0].out_value = value_buf;
- fields[0].out_mask = NULL;
fields[0].in_value = NULL;
- fields[0].in_check_value = NULL;
- fields[0].in_check_mask = NULL;
- fields[0].in_handler = NULL;
- fields[0].in_handler_priv = NULL;
- fields[1].device = jtag_info->chain_pos;
fields[1].num_bits = 6;
fields[1].out_value = ®_addr_buf;
- fields[1].out_mask = NULL;
fields[1].in_value = NULL;
- fields[1].in_check_value = NULL;
- fields[1].in_check_mask = NULL;
- fields[1].in_handler = NULL;
- fields[1].in_handler_priv = NULL;
- fields[2].device = jtag_info->chain_pos;
fields[2].num_bits = 1;
fields[2].out_value = &nr_w_buf;
- fields[2].out_mask = NULL;
fields[2].in_value = NULL;
- fields[2].in_check_value = NULL;
- fields[2].in_check_mask = NULL;
- fields[2].in_handler = NULL;
- fields[2].in_handler_priv = NULL;
-
- jtag_add_dr_scan(3, fields, -1);
+
+ jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr, value);
return ERROR_OK;
}
-int arm966e_handle_cp15_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(arm966e_handle_cp15_command)
{
int retval;
- target_t *target = get_current_target(cmd_ctx);
- armv4_5_common_t *armv4_5;
- arm7_9_common_t *arm7_9;
- arm9tdmi_common_t *arm9tdmi;
- arm966e_common_t *arm966e;
- arm_jtag_t *jtag_info;
-
- if (arm966e_get_arch_pointers(target, &armv4_5, &arm7_9, &arm9tdmi, &arm966e) != ERROR_OK)
- {
- command_print(cmd_ctx, "current target isn't an ARM966e target");
- return ERROR_OK;
- }
-
- jtag_info = &arm7_9->jtag_info;
-
- if (target->state != TARGET_HALTED)
- {
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
+ struct target *target = get_current_target(CMD_CTX);
+ struct arm966e_common *arm966e = target_to_arm966(target);
+
+ retval = arm966e_verify_pointer(CMD, arm966e);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (target->state != TARGET_HALTED) {
+ command_print(CMD, "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)
- {
- int address = strtoul(args[0], NULL, 0);
-
- if (argc == 1)
- {
- u32 value;
- if ((retval = arm966e_read_cp15(target, address, &value)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't access reg %i", address);
+ if (CMD_ARGC >= 1) {
+ uint32_t address;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
+
+ if (CMD_ARGC == 1) {
+ uint32_t value;
+ retval = arm966e_read_cp15(target, address, &value);
+ if (retval != ERROR_OK) {
+ command_print(CMD,
+ "couldn't access reg %" PRIu32,
+ address);
return ERROR_OK;
}
- jtag_execute_queue();
-
- command_print(cmd_ctx, "%i: %8.8x", address, value);
- }
- else if (argc == 2)
- {
- u32 value = strtoul(args[1], NULL, 0);
- if ((retval = arm966e_write_cp15(target, address, value)) != ERROR_OK)
- {
- command_print(cmd_ctx, "couldn't access reg %i", address);
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
+ return retval;
+
+ command_print(CMD, "%" PRIu32 ": %8.8" PRIx32,
+ address, value);
+ } else if (CMD_ARGC == 2) {
+ uint32_t value;
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
+ retval = arm966e_write_cp15(target, address, value);
+ if (retval != ERROR_OK) {
+ command_print(CMD,
+ "couldn't access reg %" PRIu32,
+ address);
return ERROR_OK;
}
- command_print(cmd_ctx, "%i: %8.8x", address, value);
+ command_print(CMD, "%" PRIu32 ": %8.8" PRIx32,
+ address, value);
}
}
return ERROR_OK;
}
-int arm966e_register_commands(struct command_context_s *cmd_ctx)
-{
- int retval;
- command_t *arm966e_cmd;
-
- retval = arm9tdmi_register_commands(cmd_ctx);
- arm966e_cmd = register_command(cmd_ctx, NULL, "arm966e", NULL, COMMAND_ANY, "arm966e specific commands");
- register_command(cmd_ctx, arm966e_cmd, "cp15", arm966e_handle_cp15_command, COMMAND_EXEC, "display/modify cp15 register <num> [value]");
-
- return ERROR_OK;
-}
+static const struct command_registration arm966e_exec_command_handlers[] = {
+ {
+ .name = "cp15",
+ .handler = arm966e_handle_cp15_command,
+ .mode = COMMAND_EXEC,
+ .usage = "regnum [value]",
+ .help = "display/modify cp15 register",
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+const struct command_registration arm966e_command_handlers[] = {
+ {
+ .chain = arm9tdmi_command_handlers,
+ },
+ {
+ .name = "arm966e",
+ .mode = COMMAND_ANY,
+ .help = "arm966e command group",
+ .usage = "",
+ .chain = arm966e_exec_command_handlers,
+ },
+ COMMAND_REGISTRATION_DONE
+};
+
+/** Holds methods for ARM966 targets. */
+struct target_type arm966e_target = {
+ .name = "arm966e",
+
+ .poll = arm7_9_poll,
+ .arch_state = arm_arch_state,
+
+ .target_request_data = arm7_9_target_request_data,
+
+ .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 = arm7_9_soft_reset_halt,
+
+ .get_gdb_arch = arm_get_gdb_arch,
+ .get_gdb_reg_list = arm_get_gdb_reg_list,
+
+ .read_memory = arm7_9_read_memory,
+ .write_memory = arm7_9_write_memory_opt,
+
+ .checksum_memory = arm_checksum_memory,
+ .blank_check_memory = arm_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,
+
+ .commands = arm966e_command_handlers,
+ .target_create = arm966e_target_create,
+ .init_target = arm9tdmi_init_target,
+ .deinit_target = arm966e_deinit_target,
+ .examine = arm7_9_examine,
+ .check_reset = arm7_9_check_reset,
+};
projects / fw / openocd / blobdiff