1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
5 * Copyright (C) 2008 by Spencer Oliver *
6 * spen@spen-soft.co.uk *
8 * This program is free software; you can redistribute it and/or modify *
9 * it under the terms of the GNU General Public License as published by *
10 * the Free Software Foundation; either version 2 of the License, or *
11 * (at your option) any later version. *
13 * This program is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
16 * GNU General Public License for more details. *
18 * You should have received a copy of the GNU General Public License *
19 * along with this program. If not, see <http://www.gnu.org/licenses/>. *
20 ***************************************************************************/
27 #include "target_type.h"
28 #include "arm_opcodes.h"
31 #define _DEBUG_INSTRUCTION_EXECUTION_
34 int arm966e_init_arch_info(struct target
*target
, struct arm966e_common
*arm966e
, struct jtag_tap
*tap
)
36 struct arm7_9_common
*arm7_9
= &arm966e
->arm7_9_common
;
38 /* initialize arm7/arm9 specific info (including armv4_5) */
39 arm9tdmi_init_arch_info(target
, arm7_9
, tap
);
41 arm966e
->common_magic
= ARM966E_COMMON_MAGIC
;
43 /* The ARM966E-S implements the ARMv5TE architecture which
44 * has the BKPT instruction, so we don't have to use a watchpoint comparator
46 arm7_9
->arm_bkpt
= ARMV5_BKPT(0x0);
47 arm7_9
->thumb_bkpt
= ARMV5_T_BKPT(0x0) & 0xffff;
52 static int arm966e_target_create(struct target
*target
, Jim_Interp
*interp
)
54 struct arm966e_common
*arm966e
= calloc(1, sizeof(struct arm966e_common
));
56 return arm966e_init_arch_info(target
, arm966e
, target
->tap
);
59 static void arm966e_deinit_target(struct target
*target
)
61 struct arm
*arm
= target_to_arm(target
);
62 struct arm966e_common
*arm966e
= target_to_arm966(target
);
64 arm7_9_deinit(target
);
65 arm_free_reg_cache(arm
);
69 static int arm966e_verify_pointer(struct command_invocation
*cmd
,
70 struct arm966e_common
*arm966e
)
72 if (arm966e
->common_magic
!= ARM966E_COMMON_MAGIC
) {
73 command_print(cmd
, "target is not an ARM966");
74 return ERROR_TARGET_INVALID
;
80 * REVISIT: The "read_cp15" and "write_cp15" commands could hook up
81 * to eventual mrc() and mcr() routines ... the reg_addr values being
82 * constructed (for CP15 only) from Opcode_1, Opcode_2, and CRn values.
83 * See section 7.3 of the ARM966E-S TRM.
86 static int arm966e_read_cp15(struct target
*target
, int reg_addr
, uint32_t *value
)
88 int retval
= ERROR_OK
;
89 struct arm7_9_common
*arm7_9
= target_to_arm7_9(target
);
90 struct arm_jtag
*jtag_info
= &arm7_9
->jtag_info
;
91 struct scan_field fields
[3];
92 uint8_t reg_addr_buf
= reg_addr
& 0x3f;
95 retval
= arm_jtag_scann(jtag_info
, 0xf, TAP_IDLE
);
96 if (retval
!= ERROR_OK
)
98 retval
= arm_jtag_set_instr(jtag_info
->tap
, jtag_info
->intest_instr
, NULL
, TAP_IDLE
);
99 if (retval
!= ERROR_OK
)
102 fields
[0].num_bits
= 32;
103 /* REVISIT: table 7-2 shows that bits 31-31 need to be
104 * specified for accessing BIST registers ...
106 fields
[0].out_value
= NULL
;
107 fields
[0].in_value
= NULL
;
109 fields
[1].num_bits
= 6;
110 fields
[1].out_value
= ®_addr_buf
;
111 fields
[1].in_value
= NULL
;
113 fields
[2].num_bits
= 1;
114 fields
[2].out_value
= &nr_w_buf
;
115 fields
[2].in_value
= NULL
;
117 jtag_add_dr_scan(jtag_info
->tap
, 3, fields
, TAP_IDLE
);
119 fields
[1].in_value
= (uint8_t *)value
;
121 jtag_add_dr_scan(jtag_info
->tap
, 3, fields
, TAP_IDLE
);
123 jtag_add_callback(arm_le_to_h_u32
, (jtag_callback_data_t
)value
);
126 #ifdef _DEBUG_INSTRUCTION_EXECUTION_
127 retval
= jtag_execute_queue();
128 if (retval
!= ERROR_OK
)
130 LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr
, *value
);
136 /* EXPORTED to str9x (flash) */
137 int arm966e_write_cp15(struct target
*target
, int reg_addr
, uint32_t value
)
139 int retval
= ERROR_OK
;
140 struct arm7_9_common
*arm7_9
= target_to_arm7_9(target
);
141 struct arm_jtag
*jtag_info
= &arm7_9
->jtag_info
;
142 struct scan_field fields
[3];
143 uint8_t reg_addr_buf
= reg_addr
& 0x3f;
144 uint8_t nr_w_buf
= 1;
145 uint8_t value_buf
[4];
147 buf_set_u32(value_buf
, 0, 32, value
);
149 retval
= arm_jtag_scann(jtag_info
, 0xf, TAP_IDLE
);
150 if (retval
!= ERROR_OK
)
152 retval
= arm_jtag_set_instr(jtag_info
->tap
, jtag_info
->intest_instr
, NULL
, TAP_IDLE
);
153 if (retval
!= ERROR_OK
)
156 fields
[0].num_bits
= 32;
157 fields
[0].out_value
= value_buf
;
158 fields
[0].in_value
= NULL
;
160 fields
[1].num_bits
= 6;
161 fields
[1].out_value
= ®_addr_buf
;
162 fields
[1].in_value
= NULL
;
164 fields
[2].num_bits
= 1;
165 fields
[2].out_value
= &nr_w_buf
;
166 fields
[2].in_value
= NULL
;
168 jtag_add_dr_scan(jtag_info
->tap
, 3, fields
, TAP_IDLE
);
170 #ifdef _DEBUG_INSTRUCTION_EXECUTION_
171 LOG_DEBUG("addr: 0x%x value: %8.8x", reg_addr
, value
);
177 COMMAND_HANDLER(arm966e_handle_cp15_command
)
180 struct target
*target
= get_current_target(CMD_CTX
);
181 struct arm966e_common
*arm966e
= target_to_arm966(target
);
183 retval
= arm966e_verify_pointer(CMD
, arm966e
);
184 if (retval
!= ERROR_OK
)
187 if (target
->state
!= TARGET_HALTED
) {
188 command_print(CMD
, "target must be stopped for \"%s\" command", CMD_NAME
);
192 /* one or more argument, access a single register (write if second argument is given */
195 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[0], address
);
199 retval
= arm966e_read_cp15(target
, address
, &value
);
200 if (retval
!= ERROR_OK
) {
202 "couldn't access reg %" PRIu32
,
206 retval
= jtag_execute_queue();
207 if (retval
!= ERROR_OK
)
210 command_print(CMD
, "%" PRIu32
": %8.8" PRIx32
,
212 } else if (CMD_ARGC
== 2) {
214 COMMAND_PARSE_NUMBER(u32
, CMD_ARGV
[1], value
);
215 retval
= arm966e_write_cp15(target
, address
, value
);
216 if (retval
!= ERROR_OK
) {
218 "couldn't access reg %" PRIu32
,
222 command_print(CMD
, "%" PRIu32
": %8.8" PRIx32
,
230 static const struct command_registration arm966e_exec_command_handlers
[] = {
233 .handler
= arm966e_handle_cp15_command
,
234 .mode
= COMMAND_EXEC
,
235 .usage
= "regnum [value]",
236 .help
= "display/modify cp15 register",
238 COMMAND_REGISTRATION_DONE
241 const struct command_registration arm966e_command_handlers
[] = {
243 .chain
= arm9tdmi_command_handlers
,
248 .help
= "arm966e command group",
250 .chain
= arm966e_exec_command_handlers
,
252 COMMAND_REGISTRATION_DONE
255 /** Holds methods for ARM966 targets. */
256 struct target_type arm966e_target
= {
260 .arch_state
= arm_arch_state
,
262 .target_request_data
= arm7_9_target_request_data
,
265 .resume
= arm7_9_resume
,
268 .assert_reset
= arm7_9_assert_reset
,
269 .deassert_reset
= arm7_9_deassert_reset
,
270 .soft_reset_halt
= arm7_9_soft_reset_halt
,
272 .get_gdb_arch
= arm_get_gdb_arch
,
273 .get_gdb_reg_list
= arm_get_gdb_reg_list
,
275 .read_memory
= arm7_9_read_memory
,
276 .write_memory
= arm7_9_write_memory_opt
,
278 .checksum_memory
= arm_checksum_memory
,
279 .blank_check_memory
= arm_blank_check_memory
,
281 .run_algorithm
= armv4_5_run_algorithm
,
283 .add_breakpoint
= arm7_9_add_breakpoint
,
284 .remove_breakpoint
= arm7_9_remove_breakpoint
,
285 .add_watchpoint
= arm7_9_add_watchpoint
,
286 .remove_watchpoint
= arm7_9_remove_watchpoint
,
288 .commands
= arm966e_command_handlers
,
289 .target_create
= arm966e_target_create
,
290 .init_target
= arm9tdmi_init_target
,
291 .deinit_target
= arm966e_deinit_target
,
292 .examine
= arm7_9_examine
,
293 .check_reset
= arm7_9_check_reset
,
Linking to existing account procedure
If you already have an account and want to add another login method
you
MUST first sign in with your existing account and
then change URL to read
https://review.openocd.org/login/?link
to get to this page again but this time it'll work for linking. Thank you.
SSH host keys fingerprints
1024 SHA256:YKx8b7u5ZWdcbp7/4AeXNaqElP49m6QrwfXaqQGJAOk gerrit-code-review@openocd.zylin.com (DSA)
384 SHA256:jHIbSQa4REvwCFG4cq5LBlBLxmxSqelQPem/EXIrxjk gerrit-code-review@openocd.org (ECDSA)
521 SHA256:UAOPYkU9Fjtcao0Ul/Rrlnj/OsQvt+pgdYSZ4jOYdgs gerrit-code-review@openocd.org (ECDSA)
256 SHA256:A13M5QlnozFOvTllybRZH6vm7iSt0XLxbA48yfc2yfY gerrit-code-review@openocd.org (ECDSA)
256 SHA256:spYMBqEYoAOtK7yZBrcwE8ZpYt6b68Cfh9yEVetvbXg gerrit-code-review@openocd.org (ED25519)
+--[ED25519 256]--+
|=.. |
|+o.. . |
|*.o . . |
|+B . . . |
|Bo. = o S |
|Oo.+ + = |
|oB=.* = . o |
| =+=.+ + E |
|. .=o . o |
+----[SHA256]-----+
2048 SHA256:0Onrb7/PHjpo6iVZ7xQX2riKN83FJ3KGU0TvI0TaFG4 gerrit-code-review@openocd.zylin.com (RSA)