speeds, like the 32kHz startup clock of an AT91RM9200.
@end deffn
-@subsection ARM720T specific commands
-@cindex ARM720T
-
-These commands are available to ARM720T based CPUs,
-which are implementations of the ARMv4T architecture
-based on the ARM7TDMI-S integer core.
-They are available in addition to the ARM and ARM7/ARM9 commands.
-
-@deffn Command {arm720t cp15} opcode [value]
-@emph{DEPRECATED -- avoid using this.
-Use the @command{arm mrc} or @command{arm mcr} commands instead.}
-
-Display cp15 register returned by the ARM instruction @var{opcode};
-else if a @var{value} is provided, that value is written to that register.
-The @var{opcode} should be the value of either an MRC or MCR instruction.
-@end deffn
-
@subsection ARM9 specific commands
@cindex ARM9
arm720t_write_cp15(target, 0xee060f10, arm720t->far_reg);
}
-static int arm720t_verify_pointer(struct command_invocation *cmd,
- struct arm720t_common *arm720t)
-{
- if (arm720t->common_magic != ARM720T_COMMON_MAGIC) {
- command_print(cmd, "target is not an ARM720");
- return ERROR_TARGET_INVALID;
- }
- return ERROR_OK;
-}
-
static int arm720t_arch_state(struct target *target)
{
struct arm720t_common *arm720t = target_to_arm720(target);
return arm720t_init_arch_info(target, arm720t, target->tap);
}
-COMMAND_HANDLER(arm720t_handle_cp15_command)
-{
- int retval;
- struct target *target = get_current_target(CMD_CTX);
- struct arm720t_common *arm720t = target_to_arm720(target);
-
- retval = arm720t_verify_pointer(CMD, arm720t);
- 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 (CMD_ARGC >= 1) {
- uint32_t opcode;
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], opcode);
-
- if (CMD_ARGC == 1) {
- uint32_t value;
- retval = arm720t_read_cp15(target, opcode, &value);
- if (retval != ERROR_OK) {
- command_print(CMD, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
- return ERROR_OK;
- }
-
- retval = jtag_execute_queue();
- if (retval != ERROR_OK)
- return retval;
-
- command_print(CMD, "0x%8.8" PRIx32 ": 0x%8.8" PRIx32 "", opcode, value);
- } else if (CMD_ARGC == 2) {
- uint32_t value;
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[1], value);
-
- retval = arm720t_write_cp15(target, opcode, value);
- if (retval != ERROR_OK) {
- command_print(CMD, "couldn't access cp15 with opcode 0x%8.8" PRIx32 "", opcode);
- return ERROR_OK;
- }
- command_print(CMD, "0x%8.8" PRIx32 ": 0x%8.8" PRIx32 "", opcode, value);
- }
- }
-
- return ERROR_OK;
-}
-
static int arm720t_mrc(struct target *target, int cpnum,
uint32_t op1, uint32_t op2,
uint32_t CRn, uint32_t CRm,
value);
}
-static const struct command_registration arm720t_exec_command_handlers[] = {
- {
- .name = "cp15",
- .handler = arm720t_handle_cp15_command,
- .mode = COMMAND_EXEC,
- /* prefer using less error-prone "arm mcr" or "arm mrc" */
- .help = "display/modify cp15 register using ARM opcode"
- " (DEPRECATED)",
- .usage = "instruction [value]",
- },
- COMMAND_REGISTRATION_DONE
-};
-
static const struct command_registration arm720t_command_handlers[] = {
{
.chain = arm7_9_command_handlers,
},
- {
- .name = "arm720t",
- .mode = COMMAND_ANY,
- .help = "arm720t command group",
- .usage = "",
- .chain = arm720t_exec_command_handlers,
- },
COMMAND_REGISTRATION_DONE
};