* 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. *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
***************************************************************************/
#ifdef HAVE_CONFIG_H
uint32_t address, int handle_breakpoints,
int debug_execution);
static int mips_m4k_halt(struct target *target);
+static int mips_m4k_bulk_write_memory(struct target *target, uint32_t address,
+ uint32_t count, const uint8_t *buffer);
static int mips_m4k_examine_debug_reason(struct target *target)
{
+ struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
uint32_t break_status;
int retval;
if ((target->debug_reason != DBG_REASON_DBGRQ)
- && (target->debug_reason != DBG_REASON_SINGLESTEP)) {
- /* get info about inst breakpoint support */
- retval = target_read_u32(target, EJTAG_IBS, &break_status);
- if (retval != ERROR_OK)
- return retval;
- if (break_status & 0x1f) {
- /* we have halted on a breakpoint */
- retval = target_write_u32(target, EJTAG_IBS, 0);
+ && (target->debug_reason != DBG_REASON_SINGLESTEP)) {
+ if (ejtag_info->debug_caps & EJTAG_DCR_IB) {
+ /* get info about inst breakpoint support */
+ retval = target_read_u32(target,
+ ejtag_info->ejtag_ibs_addr, &break_status);
if (retval != ERROR_OK)
return retval;
- target->debug_reason = DBG_REASON_BREAKPOINT;
+ if (break_status & 0x1f) {
+ /* we have halted on a breakpoint */
+ retval = target_write_u32(target,
+ ejtag_info->ejtag_ibs_addr, 0);
+ if (retval != ERROR_OK)
+ return retval;
+ target->debug_reason = DBG_REASON_BREAKPOINT;
+ }
}
- /* get info about data breakpoint support */
- retval = target_read_u32(target, EJTAG_DBS, &break_status);
- if (retval != ERROR_OK)
- return retval;
- if (break_status & 0x1f) {
- /* we have halted on a breakpoint */
- retval = target_write_u32(target, EJTAG_DBS, 0);
+ if (ejtag_info->debug_caps & EJTAG_DCR_DB) {
+ /* get info about data breakpoint support */
+ retval = target_read_u32(target,
+ ejtag_info->ejtag_dbs_addr, &break_status);
if (retval != ERROR_OK)
return retval;
- target->debug_reason = DBG_REASON_WATCHPOINT;
+ if (break_status & 0x1f) {
+ /* we have halted on a breakpoint */
+ retval = target_write_u32(target,
+ ejtag_info->ejtag_dbs_addr, 0);
+ if (retval != ERROR_OK)
+ return retval;
+ target->debug_reason = DBG_REASON_WATCHPOINT;
+ }
}
}
struct mips32_common *mips32 = target_to_mips32(target);
struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
+ mips32_save_context(target);
+
/* make sure stepping disabled, SSt bit in CP0 debug register cleared */
mips_ejtag_config_step(ejtag_info, 0);
/* attempt to find halt reason */
mips_m4k_examine_debug_reason(target);
- mips32_save_context(target);
-
/* default to mips32 isa, it will be changed below if required */
mips32->isa_mode = MIPS32_ISA_MIPS32;
ret = mips_m4k_halt(curr);
if (ret != ERROR_OK) {
- LOG_ERROR("halt failed target->coreid: %d", curr->coreid);
+ LOG_ERROR("halt failed target->coreid: %" PRId32, curr->coreid);
retval = ret;
}
head = head->next;
return ERROR_OK;
}
-static int mips_m4k_soft_reset_halt(struct target *target)
-{
- /* TODO */
- return ERROR_OK;
-}
-
static int mips_m4k_single_step_core(struct target *target)
{
struct mips32_common *mips32 = target_to_mips32(target);
handle_breakpoints, 0);
if (ret != ERROR_OK) {
- LOG_ERROR("target->coreid :%d failed to resume at address :0x%x",
+ LOG_ERROR("target->coreid :%" PRId32 " failed to resume at address :0x%" PRIx32,
curr->coreid, address);
retval = ret;
}
/* registers are now invalid */
register_cache_invalidate(mips32->core_cache);
+ LOG_DEBUG("target stepped ");
+ mips_m4k_debug_entry(target);
+
if (breakpoint)
mips_m4k_set_breakpoint(target, breakpoint);
- LOG_DEBUG("target stepped ");
-
- mips_m4k_debug_entry(target);
target_call_event_callbacks(target, TARGET_EVENT_HALTED);
return ERROR_OK;
struct breakpoint *breakpoint)
{
struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
struct mips32_comparator *comparator_list = mips32->inst_break_list;
int retval;
while (comparator_list[bp_num].used && (bp_num < mips32->num_inst_bpoints))
bp_num++;
if (bp_num >= mips32->num_inst_bpoints) {
- LOG_ERROR("Can not find free FP Comparator(bpid: %d)",
+ LOG_ERROR("Can not find free FP Comparator(bpid: %" PRIu32 ")",
breakpoint->unique_id);
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
breakpoint->set = bp_num + 1;
comparator_list[bp_num].used = 1;
comparator_list[bp_num].bp_value = breakpoint->address;
+
+ /* EJTAG 2.0 uses 30bit IBA. First 2 bits are reserved.
+ * Warning: there is no IB ASID registers in 2.0.
+ * Do not set it! :) */
+ if (ejtag_info->ejtag_version == EJTAG_VERSION_20)
+ comparator_list[bp_num].bp_value &= 0xFFFFFFFC;
+
target_write_u32(target, comparator_list[bp_num].reg_address,
comparator_list[bp_num].bp_value);
- target_write_u32(target, comparator_list[bp_num].reg_address + 0x08, 0x00000000);
- target_write_u32(target, comparator_list[bp_num].reg_address + 0x18, 1);
- LOG_DEBUG("bpid: %d, bp_num %i bp_value 0x%" PRIx32 "",
+ target_write_u32(target, comparator_list[bp_num].reg_address +
+ ejtag_info->ejtag_ibm_offs, 0x00000000);
+ target_write_u32(target, comparator_list[bp_num].reg_address +
+ ejtag_info->ejtag_ibc_offs, 1);
+ LOG_DEBUG("bpid: %" PRIu32 ", bp_num %i bp_value 0x%" PRIx32 "",
breakpoint->unique_id,
bp_num, comparator_list[bp_num].bp_value);
} else if (breakpoint->type == BKPT_SOFT) {
- LOG_DEBUG("bpid: %d", breakpoint->unique_id);
+ LOG_DEBUG("bpid: %" PRIu32, breakpoint->unique_id);
if (breakpoint->length == 4) {
uint32_t verify = 0xffffffff;
{
/* get pointers to arch-specific information */
struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
struct mips32_comparator *comparator_list = mips32->inst_break_list;
int retval;
if (breakpoint->type == BKPT_HARD) {
int bp_num = breakpoint->set - 1;
if ((bp_num < 0) || (bp_num >= mips32->num_inst_bpoints)) {
- LOG_DEBUG("Invalid FP Comparator number in breakpoint (bpid: %d)",
+ LOG_DEBUG("Invalid FP Comparator number in breakpoint (bpid: %" PRIu32 ")",
breakpoint->unique_id);
return ERROR_OK;
}
- LOG_DEBUG("bpid: %d - releasing hw: %d",
+ LOG_DEBUG("bpid: %" PRIu32 " - releasing hw: %d",
breakpoint->unique_id,
bp_num);
comparator_list[bp_num].used = 0;
comparator_list[bp_num].bp_value = 0;
- target_write_u32(target, comparator_list[bp_num].reg_address + 0x18, 0);
+ target_write_u32(target, comparator_list[bp_num].reg_address +
+ ejtag_info->ejtag_ibc_offs, 0);
} else {
/* restore original instruction (kept in target endianness) */
- LOG_DEBUG("bpid: %d", breakpoint->unique_id);
+ LOG_DEBUG("bpid: %" PRIu32, breakpoint->unique_id);
if (breakpoint->length == 4) {
uint32_t current_instr;
struct watchpoint *watchpoint)
{
struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
struct mips32_comparator *comparator_list = mips32->data_break_list;
int wp_num = 0;
/*
watchpoint->set = wp_num + 1;
comparator_list[wp_num].used = 1;
comparator_list[wp_num].bp_value = watchpoint->address;
- target_write_u32(target, comparator_list[wp_num].reg_address, comparator_list[wp_num].bp_value);
- target_write_u32(target, comparator_list[wp_num].reg_address + 0x08, 0x00000000);
- target_write_u32(target, comparator_list[wp_num].reg_address + 0x10, 0x00000000);
- target_write_u32(target, comparator_list[wp_num].reg_address + 0x18, enable);
- target_write_u32(target, comparator_list[wp_num].reg_address + 0x20, 0);
+
+ /* EJTAG 2.0 uses 29bit DBA. First 3 bits are reserved.
+ * There is as well no ASID register support. */
+ if (ejtag_info->ejtag_version == EJTAG_VERSION_20)
+ comparator_list[wp_num].bp_value &= 0xFFFFFFF8;
+ else
+ target_write_u32(target, comparator_list[wp_num].reg_address +
+ ejtag_info->ejtag_dbasid_offs, 0x00000000);
+
+ target_write_u32(target, comparator_list[wp_num].reg_address,
+ comparator_list[wp_num].bp_value);
+ target_write_u32(target, comparator_list[wp_num].reg_address +
+ ejtag_info->ejtag_dbm_offs, 0x00000000);
+
+ target_write_u32(target, comparator_list[wp_num].reg_address +
+ ejtag_info->ejtag_dbc_offs, enable);
+ /* TODO: probably this value is ignored on 2.0 */
+ target_write_u32(target, comparator_list[wp_num].reg_address +
+ ejtag_info->ejtag_dbv_offs, 0);
LOG_DEBUG("wp_num %i bp_value 0x%" PRIx32 "", wp_num, comparator_list[wp_num].bp_value);
return ERROR_OK;
{
/* get pointers to arch-specific information */
struct mips32_common *mips32 = target_to_mips32(target);
+ struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
struct mips32_comparator *comparator_list = mips32->data_break_list;
if (!watchpoint->set) {
}
comparator_list[wp_num].used = 0;
comparator_list[wp_num].bp_value = 0;
- target_write_u32(target, comparator_list[wp_num].reg_address + 0x18, 0);
+ target_write_u32(target, comparator_list[wp_num].reg_address +
+ ejtag_info->ejtag_dbc_offs, 0);
watchpoint->set = 0;
return ERROR_OK;
return ERROR_TARGET_NOT_HALTED;
}
+ if (size == 4 && count > 32) {
+ int retval = mips_m4k_bulk_write_memory(target, address, count, buffer);
+ if (retval == ERROR_OK)
+ return ERROR_OK;
+ LOG_WARNING("Falling back to non-bulk write");
+ }
+
/* sanitize arguments */
if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer))
return ERROR_COMMAND_SYNTAX_ERROR;
/* if noDMA off, use DMAACC mode for memory write */
int retval;
if (ejtag_info->impcode & EJTAG_IMP_NODMA)
- retval = mips32_pracc_write_mem(ejtag_info, address, size, count, (void *)buffer);
+ retval = mips32_pracc_write_mem(ejtag_info, address, size, count, buffer);
else
- retval = mips32_dmaacc_write_mem(ejtag_info, address, size, count, (void *)buffer);
+ retval = mips32_dmaacc_write_mem(ejtag_info, address, size, count, buffer);
if (t != NULL)
free(t);
{
struct mips32_common *mips32 = target_to_mips32(target);
struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
+ struct working_area *fast_data_area;
int retval;
int write_t = 1;
LOG_DEBUG("address: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "", address, count);
- if (target->state != TARGET_HALTED) {
- LOG_WARNING("target not halted");
- return ERROR_TARGET_NOT_HALTED;
- }
-
/* check alignment */
if (address & 0x3u)
return ERROR_TARGET_UNALIGNED_ACCESS;
MIPS32_FASTDATA_HANDLER_SIZE,
&mips32->fast_data_area);
if (retval != ERROR_OK) {
- LOG_WARNING("No working area available, falling back to non-bulk write");
- return mips_m4k_write_memory(target, address, 4, count, buffer);
+ LOG_ERROR("No working area available");
+ return retval;
}
/* reset fastadata state so the algo get reloaded */
ejtag_info->fast_access_save = -1;
}
+ fast_data_area = mips32->fast_data_area;
+
+ if (address <= fast_data_area->address + fast_data_area->size &&
+ fast_data_area->address <= address + count) {
+ LOG_ERROR("fast_data (0x%8.8" PRIx32 ") is within write area "
+ "(0x%8.8" PRIx32 "-0x%8.8" PRIx32 ").",
+ fast_data_area->address, address, address + count);
+ LOG_ERROR("Change work-area-phys or load_image address!");
+ return ERROR_FAIL;
+ }
+
/* mips32_pracc_fastdata_xfer requires uint32_t in host endianness, */
/* but byte array represents target endianness */
uint32_t *t = NULL;
if (t != NULL)
free(t);
- if (retval != ERROR_OK) {
- /* FASTDATA access failed, try normal memory write */
- LOG_DEBUG("Fastdata access Failed, falling back to non-bulk write");
- retval = mips_m4k_write_memory(target, address, 4, count, buffer);
- }
+ if (retval != ERROR_OK)
+ LOG_ERROR("Fastdata access Failed");
return retval;
}
if (CMD_ARGC == 2) {
uint32_t value;
-
retval = mips32_cp0_read(ejtag_info, &value, cp0_reg, cp0_sel);
if (retval != ERROR_OK) {
command_print(CMD_CTX,
cp0_reg);
return ERROR_OK;
}
- retval = jtag_execute_queue();
- if (retval != ERROR_OK)
- return retval;
-
command_print(CMD_CTX, "cp0 reg %" PRIi32 ", select %" PRIi32 ": %8.8" PRIx32,
cp0_reg, cp0_sel, value);
+
} else if (CMD_ARGC == 3) {
uint32_t value;
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], value);
target->gdb_service->core[1] = coreid;
}
- command_print(CMD_CTX, "gdb coreid %d -> %d", target->gdb_service->core[0]
+ command_print(CMD_CTX, "gdb coreid %" PRId32 " -> %" PRId32, target->gdb_service->core[0]
, target->gdb_service->core[1]);
}
return ERROR_OK;
}
+COMMAND_HANDLER(mips_m4k_handle_scan_delay_command)
+{
+ struct target *target = get_current_target(CMD_CTX);
+ struct mips_m4k_common *mips_m4k = target_to_m4k(target);
+ struct mips_ejtag *ejtag_info = &mips_m4k->mips32.ejtag_info;
+
+ if (CMD_ARGC == 1)
+ COMMAND_PARSE_NUMBER(uint, CMD_ARGV[0], ejtag_info->scan_delay);
+ else if (CMD_ARGC > 1)
+ return ERROR_COMMAND_SYNTAX_ERROR;
+
+ command_print(CMD_CTX, "scan delay: %d nsec", ejtag_info->scan_delay);
+ if (ejtag_info->scan_delay >= 20000000) {
+ ejtag_info->mode = 0;
+ command_print(CMD_CTX, "running in legacy mode");
+ } else {
+ ejtag_info->mode = 1;
+ command_print(CMD_CTX, "running in fast queued mode");
+ }
+
+ return ERROR_OK;
+}
+
static const struct command_registration mips_m4k_exec_command_handlers[] = {
{
.name = "cp0",
.help = "display/fix current core played to gdb",
.usage = "",
},
+ {
+ .name = "scan_delay",
+ .handler = mips_m4k_handle_scan_delay_command,
+ .mode = COMMAND_ANY,
+ .help = "display/set scan delay in nano seconds",
+ .usage = "[value]",
+ },
COMMAND_REGISTRATION_DONE
};
.poll = mips_m4k_poll,
.arch_state = mips32_arch_state,
- .target_request_data = NULL,
-
.halt = mips_m4k_halt,
.resume = mips_m4k_resume,
.step = mips_m4k_step,
.assert_reset = mips_m4k_assert_reset,
.deassert_reset = mips_m4k_deassert_reset,
- .soft_reset_halt = mips_m4k_soft_reset_halt,
.get_gdb_reg_list = mips32_get_gdb_reg_list,
.read_memory = mips_m4k_read_memory,
.write_memory = mips_m4k_write_memory,
- .bulk_write_memory = mips_m4k_bulk_write_memory,
.checksum_memory = mips32_checksum_memory,
.blank_check_memory = mips32_blank_check_memory,
projects / openocd / blobdiff