+// SPDX-License-Identifier: GPL-2.0-or-later
+
/***************************************************************************
* Copyright (C) 2005 by Dominic Rath *
* Dominic.Rath@gmx.de *
* *
* Copyright (C) 2008 by Spencer Oliver *
* spen@spen-soft.co.uk *
- * *
- * 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. *
***************************************************************************/
+
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "arm966e.h"
#include "target_type.h"
-
+#include "arm_opcodes.h"
#if 0
#define _DEBUG_INSTRUCTION_EXECUTION_
static int arm966e_target_create(struct target *target, Jim_Interp *interp)
{
- struct arm966e_common *arm966e = calloc(1,sizeof(struct arm966e_common));
+ struct arm966e_common *arm966e = calloc(1, sizeof(struct arm966e_common));
return arm966e_init_arch_info(target, arm966e, target->tap);
}
-static int arm966e_verify_pointer(struct command_context *cmd_ctx,
+static void arm966e_deinit_target(struct target *target)
+{
+ 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_ctx, "target is not an ARM966");
+ command_print(cmd, "target is not an ARM966");
return ERROR_TARGET_INVALID;
}
return ERROR_OK;
}
+/*
+ * 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)
{
int retval = ERROR_OK;
uint8_t reg_addr_buf = reg_addr & 0x3f;
uint8_t nr_w_buf = 0;
- jtag_set_end_state(TAP_IDLE);
- if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK)
- {
+ 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;
- }
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
- fields[0].tap = jtag_info->tap;
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].in_value = NULL;
- fields[1].tap = jtag_info->tap;
fields[1].num_bits = 6;
fields[1].out_value = ®_addr_buf;
fields[1].in_value = NULL;
- fields[2].tap = jtag_info->tap;
fields[2].num_bits = 1;
fields[2].out_value = &nr_w_buf;
fields[2].in_value = NULL;
- jtag_add_dr_scan(3, fields, jtag_get_end_state());
+ jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
fields[1].in_value = (uint8_t *)value;
- jtag_add_dr_scan(3, fields, jtag_get_end_state());
+ jtag_add_dr_scan(jtag_info->tap, 3, fields, TAP_IDLE);
jtag_add_callback(arm_le_to_h_u32, (jtag_callback_data_t)value);
#ifdef _DEBUG_INSTRUCTION_EXECUTION_
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ 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;
}
-// EXPORTED to str9x (flash)
+/* EXPORTED to str9x (flash) */
int arm966e_write_cp15(struct target *target, int reg_addr, uint32_t value)
{
int retval = ERROR_OK;
buf_set_u32(value_buf, 0, 32, value);
- jtag_set_end_state(TAP_IDLE);
- if ((retval = arm_jtag_scann(jtag_info, 0xf)) != ERROR_OK)
- {
+ 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;
- }
- arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL);
- fields[0].tap = jtag_info->tap;
fields[0].num_bits = 32;
fields[0].out_value = value_buf;
fields[0].in_value = NULL;
- fields[1].tap = jtag_info->tap;
fields[1].num_bits = 6;
fields[1].out_value = ®_addr_buf;
fields[1].in_value = NULL;
- fields[2].tap = jtag_info->tap;
fields[2].num_bits = 1;
fields[2].out_value = &nr_w_buf;
fields[2].in_value = NULL;
- jtag_add_dr_scan(3, fields, jtag_get_end_state());
+ 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);
COMMAND_HANDLER(arm966e_handle_cp15_command)
{
int retval;
- struct target *target = get_current_target(cmd_ctx);
+ struct target *target = get_current_target(CMD_CTX);
struct arm966e_common *arm966e = target_to_arm966(target);
- retval = arm966e_verify_pointer(cmd_ctx, arm966e);
+ retval = arm966e_verify_pointer(CMD, arm966e);
if (retval != ERROR_OK)
return retval;
- if (target->state != TARGET_HALTED)
- {
- command_print(cmd_ctx, "target must be stopped for \"%s\" command", CMD_NAME);
- return ERROR_OK;
+ if (target->state != TARGET_HALTED) {
+ command_print(CMD, "Error: target must be stopped for \"%s\" command", CMD_NAME);
+ return ERROR_TARGET_NOT_HALTED;
}
/* one or more argument, access a single register (write if second argument is given */
- if (CMD_ARGC >= 1)
- {
+ if (CMD_ARGC >= 1) {
uint32_t address;
- COMMAND_PARSE_NUMBER(u32, args[0], address);
+ COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], address);
- if (CMD_ARGC == 1)
- {
+ if (CMD_ARGC == 1) {
uint32_t value;
- if ((retval = arm966e_read_cp15(target, address, &value)) != ERROR_OK)
- {
- command_print(cmd_ctx,
- "couldn't access reg %" PRIi32,
+ retval = arm966e_read_cp15(target, address, &value);
+ if (retval != ERROR_OK) {
+ command_print(CMD,
+ "couldn't access reg %" PRIu32,
address);
return ERROR_OK;
}
- if ((retval = jtag_execute_queue()) != ERROR_OK)
- {
+ retval = jtag_execute_queue();
+ if (retval != ERROR_OK)
return retval;
- }
- command_print(cmd_ctx, "%" PRIi32 ": %8.8" PRIx32,
+ command_print(CMD, "%" PRIu32 ": %8.8" PRIx32,
address, value);
- }
- else if (CMD_ARGC == 2)
- {
+ } else if (CMD_ARGC == 2) {
uint32_t value;
- COMMAND_PARSE_NUMBER(u32, args[1], value);
- if ((retval = arm966e_write_cp15(target, address, value)) != ERROR_OK)
- {
- command_print(cmd_ctx,
- "couldn't access reg %" PRIi32,
+ 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, "%" PRIi32 ": %8.8" PRIx32,
+ command_print(CMD, "%" PRIu32 ": %8.8" PRIx32,
address, value);
}
}
return ERROR_OK;
}
-/** Registers commands used to access coprocessor resources. */
-int arm966e_register_commands(struct command_context *cmd_ctx)
-{
- int retval;
- struct command *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]");
+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
+};
- return retval;
-}
+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 =
-{
+struct target_type arm966e_target = {
.name = "arm966e",
.poll = arm7_9_poll,
- .arch_state = armv4_5_arch_state,
+ .arch_state = arm_arch_state,
.target_request_data = arm7_9_target_request_data,
.deassert_reset = arm7_9_deassert_reset,
.soft_reset_halt = arm7_9_soft_reset_halt,
- .get_gdb_reg_list = armv4_5_get_gdb_reg_list,
+ .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,
- .bulk_write_memory = arm7_9_bulk_write_memory,
+ .write_memory = arm7_9_write_memory_opt,
.checksum_memory = arm_checksum_memory,
.blank_check_memory = arm_blank_check_memory,
.add_watchpoint = arm7_9_add_watchpoint,
.remove_watchpoint = arm7_9_remove_watchpoint,
- .register_commands = arm966e_register_commands,
+ .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,
};
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