X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Ftarget%2Fmips_m4k.c;h=85eea932ddbbd14dd98b9db31ceb230e858d8fe0;hb=99add6227fe0a3be536f9b83ff6aa7dd63a8d2dc;hp=502e94058b01e63d4eaa5df44eac8ad594ce1909;hpb=08d4411b59dd8bd0e7d8009003b71d23acbf6eee;p=openocd.git
diff --git a/src/target/mips_m4k.c b/src/target/mips_m4k.c
index 502e94058b..85eea932dd 100644
--- a/src/target/mips_m4k.c
+++ b/src/target/mips_m4k.c
@@ -20,9 +20,7 @@
* 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., *
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. *
+ * along with this program. If not, see . *
***************************************************************************/
#ifdef HAVE_CONFIG_H
@@ -35,6 +33,7 @@
#include "mips32_dmaacc.h"
#include "target_type.h"
#include "register.h"
+#include "smp.h"
static void mips_m4k_enable_breakpoints(struct target *target);
static void mips_m4k_enable_watchpoints(struct target *target);
@@ -43,39 +42,51 @@ static int mips_m4k_set_breakpoint(struct target *target,
static int mips_m4k_unset_breakpoint(struct target *target,
struct breakpoint *breakpoint);
static int mips_m4k_internal_restore(struct target *target, int current,
- uint32_t address, int handle_breakpoints,
+ target_addr_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, target_addr_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;
+ }
}
}
@@ -98,11 +109,14 @@ static int mips_m4k_debug_entry(struct target *target)
/* attempt to find halt reason */
mips_m4k_examine_debug_reason(target);
+ mips32_read_config_regs(target);
+
/* default to mips32 isa, it will be changed below if required */
mips32->isa_mode = MIPS32_ISA_MIPS32;
- if (ejtag_info->impcode & EJTAG_IMP_MIPS16)
- mips32->isa_mode = buf_get_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 1);
+ /* other than mips32 only and isa bit set ? */
+ if (mips32->isa_imp && buf_get_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 1))
+ mips32->isa_mode = mips32->isa_imp == 2 ? MIPS32_ISA_MIPS16E : MIPS32_ISA_MMIPS32;
LOG_DEBUG("entered debug state at PC 0x%" PRIx32 ", target->state: %s",
buf_get_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 32),
@@ -139,7 +153,7 @@ static int mips_m4k_halt_smp(struct target *target)
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;
@@ -185,6 +199,8 @@ static int mips_m4k_poll(struct target *target)
if (retval != ERROR_OK)
return retval;
+ ejtag_info->isa = (ejtag_ctrl & EJTAG_CTRL_DBGISA) ? 1 : 0;
+
/* clear this bit before handling polling
* as after reset registers will read zero */
if (ejtag_ctrl & EJTAG_CTRL_ROCC) {
@@ -290,6 +306,13 @@ static int mips_m4k_assert_reset(struct target *target)
struct mips_m4k_common *mips_m4k = target_to_m4k(target);
struct mips_ejtag *ejtag_info = &mips_m4k->mips32.ejtag_info;
+ /* TODO: apply hw reset signal in not examined state */
+ if (!(target_was_examined(target))) {
+ LOG_WARNING("Reset is not asserted because the target is not examined.");
+ LOG_WARNING("Use a reset button or power cycle the target.");
+ return ERROR_TARGET_NOT_EXAMINED;
+ }
+
LOG_DEBUG("target->state: %s",
target_state_name(target));
@@ -306,11 +329,15 @@ static int mips_m4k_assert_reset(struct target *target)
srst_asserted = true;
}
- if (target->reset_halt) {
- /* use hardware to catch reset */
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_EJTAGBOOT);
- } else
- mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT);
+
+ /* EJTAG before v2.5/2.6 does not support EJTAGBOOT or NORMALBOOT */
+ if (ejtag_info->ejtag_version != EJTAG_VERSION_20) {
+ if (target->reset_halt) {
+ /* use hardware to catch reset */
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_EJTAGBOOT);
+ } else
+ mips_ejtag_set_instr(ejtag_info, EJTAG_INST_NORMALBOOT);
+ }
if (jtag_reset_config & RESET_HAS_SRST) {
/* here we should issue a srst only, but we may have to assert trst as well */
@@ -318,6 +345,8 @@ static int mips_m4k_assert_reset(struct target *target)
jtag_add_reset(1, 1);
else if (!srst_asserted)
jtag_add_reset(0, 1);
+ } else if (target_has_event_action(target, TARGET_EVENT_RESET_ASSERT)) {
+ target_handle_event(target, TARGET_EVENT_RESET_ASSERT);
} else {
if (mips_m4k->is_pic32mx) {
LOG_DEBUG("Using MTAP reset to reset processor...");
@@ -362,12 +391,6 @@ static int mips_m4k_deassert_reset(struct target *target)
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);
@@ -403,7 +426,7 @@ static int mips_m4k_restore_smp(struct target *target, uint32_t address, int han
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;
}
@@ -414,7 +437,7 @@ static int mips_m4k_restore_smp(struct target *target, uint32_t address, int han
}
static int mips_m4k_internal_restore(struct target *target, int current,
- uint32_t address, int handle_breakpoints, int debug_execution)
+ target_addr_t address, int handle_breakpoints, int debug_execution)
{
struct mips32_common *mips32 = target_to_mips32(target);
struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
@@ -434,12 +457,13 @@ static int mips_m4k_internal_restore(struct target *target, int current,
/* current = 1: continue on current pc, otherwise continue at */
if (!current) {
+ mips_m4k_isa_filter(mips32->isa_imp, &address);
buf_set_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 32, address);
- mips32->core_cache->reg_list[MIPS32_PC].dirty = 1;
- mips32->core_cache->reg_list[MIPS32_PC].valid = 1;
+ mips32->core_cache->reg_list[MIPS32_PC].dirty = true;
+ mips32->core_cache->reg_list[MIPS32_PC].valid = true;
}
- if (ejtag_info->impcode & EJTAG_IMP_MIPS16)
+ if ((mips32->isa_imp > 1) && debug_execution) /* if more than one isa supported */
buf_set_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 1, mips32->isa_mode);
if (!current)
@@ -454,7 +478,8 @@ static int mips_m4k_internal_restore(struct target *target, int current,
/* Single step past breakpoint at current address */
breakpoint = breakpoint_find(target, resume_pc);
if (breakpoint) {
- LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 "", breakpoint->address);
+ LOG_DEBUG("unset breakpoint at " TARGET_ADDR_FMT "",
+ breakpoint->address);
mips_m4k_unset_breakpoint(target, breakpoint);
mips_m4k_single_step_core(target);
mips_m4k_set_breakpoint(target, breakpoint);
@@ -485,7 +510,7 @@ static int mips_m4k_internal_restore(struct target *target, int current,
}
static int mips_m4k_resume(struct target *target, int current,
- uint32_t address, int handle_breakpoints, int debug_execution)
+ target_addr_t address, int handle_breakpoints, int debug_execution)
{
int retval = ERROR_OK;
@@ -512,7 +537,7 @@ static int mips_m4k_resume(struct target *target, int current,
}
static int mips_m4k_step(struct target *target, int current,
- uint32_t address, int handle_breakpoints)
+ target_addr_t address, int handle_breakpoints)
{
/* get pointers to arch-specific information */
struct mips32_common *mips32 = target_to_mips32(target);
@@ -526,9 +551,10 @@ static int mips_m4k_step(struct target *target, int current,
/* current = 1: continue on current pc, otherwise continue at */
if (!current) {
+ mips_m4k_isa_filter(mips32->isa_imp, &address);
buf_set_u32(mips32->core_cache->reg_list[MIPS32_PC].value, 0, 32, address);
- mips32->core_cache->reg_list[MIPS32_PC].dirty = 1;
- mips32->core_cache->reg_list[MIPS32_PC].valid = 1;
+ mips32->core_cache->reg_list[MIPS32_PC].dirty = true;
+ mips32->core_cache->reg_list[MIPS32_PC].valid = true;
}
/* the front-end may request us not to handle breakpoints */
@@ -585,6 +611,7 @@ static int mips_m4k_set_breakpoint(struct target *target,
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;
@@ -599,57 +626,107 @@ static int mips_m4k_set_breakpoint(struct target *target,
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;
+
+ if (breakpoint->length != 4) /* make sure isa bit set */
+ comparator_list[bp_num].bp_value |= 1;
+ else /* make sure isa bit cleared */
+ comparator_list[bp_num].bp_value &= ~1;
+
+ /* 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);
- if (breakpoint->length == 4) {
+ LOG_DEBUG("bpid: %" PRIu32, breakpoint->unique_id);
+
+ uint32_t isa_req = breakpoint->length & 1; /* micro mips request bit */
+ uint32_t bplength = breakpoint->length & ~1; /* drop micro mips request bit for length */
+ uint32_t bpaddr = breakpoint->address & ~1; /* drop isa bit from address, if set */
+
+ if (bplength == 4) {
uint32_t verify = 0xffffffff;
+ uint32_t sdbbp32_instr = MIPS32_SDBBP(isa_req);
+ if (ejtag_info->endianness && isa_req)
+ sdbbp32_instr = SWAP16(sdbbp32_instr);
- retval = target_read_memory(target, breakpoint->address, breakpoint->length, 1,
- breakpoint->orig_instr);
- if (retval != ERROR_OK)
- return retval;
- retval = target_write_u32(target, breakpoint->address, MIPS32_SDBBP);
- if (retval != ERROR_OK)
- return retval;
+ if ((breakpoint->address & 3) == 0) { /* word aligned */
- retval = target_read_u32(target, breakpoint->address, &verify);
- if (retval != ERROR_OK)
- return retval;
- if (verify != MIPS32_SDBBP) {
- LOG_ERROR("Unable to set 32bit breakpoint at address %08" PRIx32
- " - check that memory is read/writable", breakpoint->address);
+ retval = target_read_memory(target, bpaddr, bplength, 1, breakpoint->orig_instr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = target_write_u32(target, bpaddr, sdbbp32_instr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = target_read_u32(target, bpaddr, &verify);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (verify != sdbbp32_instr)
+ verify = 0;
+
+ } else { /* 16 bit aligned */
+ retval = target_read_memory(target, bpaddr, 2, 2, breakpoint->orig_instr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ uint8_t sdbbp_buf[4];
+ target_buffer_set_u32(target, sdbbp_buf, sdbbp32_instr);
+
+ retval = target_write_memory(target, bpaddr, 2, 2, sdbbp_buf);
+ if (retval != ERROR_OK)
+ return retval;
+
+ retval = target_read_memory(target, bpaddr, 2, 2, sdbbp_buf);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (target_buffer_get_u32(target, sdbbp_buf) != sdbbp32_instr)
+ verify = 0;
+ }
+
+ if (verify == 0) {
+ LOG_ERROR("Unable to set 32bit breakpoint at address %08" TARGET_PRIxADDR
+ " - check that memory is read/writable", breakpoint->address);
return ERROR_OK;
}
+
} else {
uint16_t verify = 0xffff;
- retval = target_read_memory(target, breakpoint->address, breakpoint->length, 1,
- breakpoint->orig_instr);
+ retval = target_read_memory(target, bpaddr, bplength, 1, breakpoint->orig_instr);
if (retval != ERROR_OK)
return retval;
- retval = target_write_u16(target, breakpoint->address, MIPS16_SDBBP);
+
+ retval = target_write_u16(target, bpaddr, MIPS16_SDBBP(isa_req));
if (retval != ERROR_OK)
return retval;
- retval = target_read_u16(target, breakpoint->address, &verify);
+ retval = target_read_u16(target, bpaddr, &verify);
if (retval != ERROR_OK)
return retval;
- if (verify != MIPS16_SDBBP) {
- LOG_ERROR("Unable to set 16bit breakpoint at address %08" PRIx32
+
+ if (verify != MIPS16_SDBBP(isa_req)) {
+ LOG_ERROR("Unable to set 16bit breakpoint at address %08" TARGET_PRIxADDR
" - check that memory is read/writable", breakpoint->address);
return ERROR_OK;
}
@@ -666,6 +743,7 @@ static int mips_m4k_unset_breakpoint(struct target *target,
{
/* 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;
@@ -677,59 +755,72 @@ static int mips_m4k_unset_breakpoint(struct target *target,
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);
- if (breakpoint->length == 4) {
- uint32_t current_instr;
-
- /* check that user program has not modified breakpoint instruction */
- retval = target_read_memory(target, breakpoint->address, 4, 1,
- (uint8_t *)¤t_instr);
- if (retval != ERROR_OK)
- return retval;
-
- /**
- * target_read_memory() gets us data in _target_ endianess.
- * If we want to use this data on the host for comparisons with some macros
- * we must first transform it to _host_ endianess using target_buffer_get_u32().
- */
- current_instr = target_buffer_get_u32(target, (uint8_t *)¤t_instr);
-
- if (current_instr == MIPS32_SDBBP) {
- retval = target_write_memory(target, breakpoint->address, 4, 1,
- breakpoint->orig_instr);
+ uint32_t isa_req = breakpoint->length & 1;
+ uint32_t bplength = breakpoint->length & ~1;
+ uint8_t current_instr[4];
+ LOG_DEBUG("bpid: %" PRIu32, breakpoint->unique_id);
+ if (bplength == 4) {
+ uint32_t sdbbp32_instr = MIPS32_SDBBP(isa_req);
+ if (ejtag_info->endianness && isa_req)
+ sdbbp32_instr = SWAP16(sdbbp32_instr);
+
+ if ((breakpoint->address & 3) == 0) { /* 32bit aligned */
+ /* check that user program has not modified breakpoint instruction */
+ retval = target_read_memory(target, breakpoint->address, 4, 1, current_instr);
+ if (retval != ERROR_OK)
+ return retval;
+ /**
+ * target_read_memory() gets us data in _target_ endianness.
+ * If we want to use this data on the host for comparisons with some macros
+ * we must first transform it to _host_ endianness using target_buffer_get_u16().
+ */
+ if (sdbbp32_instr == target_buffer_get_u32(target, current_instr)) {
+ retval = target_write_memory(target, breakpoint->address, 4, 1,
+ breakpoint->orig_instr);
+ if (retval != ERROR_OK)
+ return retval;
+ }
+ } else { /* 16bit aligned */
+ retval = target_read_memory(target, breakpoint->address, 2, 2, current_instr);
if (retval != ERROR_OK)
return retval;
+
+ if (sdbbp32_instr == target_buffer_get_u32(target, current_instr)) {
+ retval = target_write_memory(target, breakpoint->address, 2, 2,
+ breakpoint->orig_instr);
+ if (retval != ERROR_OK)
+ return retval;
+ }
}
} else {
- uint16_t current_instr;
-
/* check that user program has not modified breakpoint instruction */
- retval = target_read_memory(target, breakpoint->address, 2, 1,
- (uint8_t *)¤t_instr);
+ retval = target_read_memory(target, breakpoint->address, 2, 1, current_instr);
if (retval != ERROR_OK)
return retval;
- current_instr = target_buffer_get_u16(target, (uint8_t *)¤t_instr);
- if (current_instr == MIPS16_SDBBP) {
+
+ if (target_buffer_get_u16(target, current_instr) == MIPS16_SDBBP(isa_req)) {
retval = target_write_memory(target, breakpoint->address, 2, 1,
- breakpoint->orig_instr);
+ breakpoint->orig_instr);
if (retval != ERROR_OK)
return retval;
}
}
}
+
breakpoint->set = 0;
return ERROR_OK;
@@ -739,6 +830,12 @@ static int mips_m4k_add_breakpoint(struct target *target, struct breakpoint *bre
{
struct mips32_common *mips32 = target_to_mips32(target);
+ if ((breakpoint->length > 5 || breakpoint->length < 2) || /* out of range */
+ (breakpoint->length == 4 && (breakpoint->address & 2)) || /* mips32 unaligned */
+ (mips32->isa_imp == MIPS32_ONLY && breakpoint->length != 4) || /* misp32 specific */
+ ((mips32->isa_imp & 1) != (breakpoint->length & 1))) /* isa not implemented */
+ return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+
if (breakpoint->type == BKPT_HARD) {
if (mips32->num_inst_bpoints_avail < 1) {
LOG_INFO("no hardware breakpoint available");
@@ -775,6 +872,7 @@ static int mips_m4k_set_watchpoint(struct target *target,
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;
/*
@@ -824,11 +922,25 @@ static int mips_m4k_set_watchpoint(struct target *target,
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;
@@ -839,6 +951,7 @@ static int mips_m4k_unset_watchpoint(struct target *target,
{
/* 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) {
@@ -853,7 +966,8 @@ static int mips_m4k_unset_watchpoint(struct target *target,
}
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;
@@ -905,13 +1019,13 @@ static void mips_m4k_enable_watchpoints(struct target *target)
}
}
-static int mips_m4k_read_memory(struct target *target, uint32_t address,
+static int mips_m4k_read_memory(struct target *target, target_addr_t address,
uint32_t size, uint32_t count, uint8_t *buffer)
{
struct mips32_common *mips32 = target_to_mips32(target);
struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
- LOG_DEBUG("address: 0x%8.8" PRIx32 ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "",
+ LOG_DEBUG("address: " TARGET_ADDR_FMT ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "",
address, size, count);
if (target->state != TARGET_HALTED) {
@@ -964,13 +1078,13 @@ static int mips_m4k_read_memory(struct target *target, uint32_t address,
return retval;
}
-static int mips_m4k_write_memory(struct target *target, uint32_t address,
+static int mips_m4k_write_memory(struct target *target, target_addr_t address,
uint32_t size, uint32_t count, const uint8_t *buffer)
{
struct mips32_common *mips32 = target_to_mips32(target);
struct mips_ejtag *ejtag_info = &mips32->ejtag_info;
- LOG_DEBUG("address: 0x%8.8" PRIx32 ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "",
+ LOG_DEBUG("address: " TARGET_ADDR_FMT ", size: 0x%8.8" PRIx32 ", count: 0x%8.8" PRIx32 "",
address, size, count);
if (target->state != TARGET_HALTED) {
@@ -978,6 +1092,13 @@ static int mips_m4k_write_memory(struct target *target, uint32_t address,
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;
@@ -985,7 +1106,7 @@ static int mips_m4k_write_memory(struct target *target, uint32_t address,
if (((size == 4) && (address & 0x3u)) || ((size == 2) && (address & 0x1u)))
return ERROR_TARGET_UNALIGNED_ACCESS;
- /** correct endianess if we have word or hword access */
+ /** correct endianness if we have word or hword access */
void *t = NULL;
if (size > 1) {
/* mips32_..._write_mem with size 4/2 requires uint32_t/uint16_t in host */
@@ -1010,9 +1131,9 @@ static int mips_m4k_write_memory(struct target *target, uint32_t address,
/* 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);
@@ -1056,52 +1177,43 @@ static int mips_m4k_target_create(struct target *target, Jim_Interp *interp)
static int mips_m4k_examine(struct target *target)
{
- int retval;
struct mips_m4k_common *mips_m4k = target_to_m4k(target);
struct mips_ejtag *ejtag_info = &mips_m4k->mips32.ejtag_info;
- uint32_t idcode = 0;
if (!target_was_examined(target)) {
- retval = mips_ejtag_get_idcode(ejtag_info, &idcode);
- if (retval != ERROR_OK)
+ int retval = mips_ejtag_get_idcode(ejtag_info);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("idcode read failed");
return retval;
- ejtag_info->idcode = idcode;
-
- if (((idcode >> 1) & 0x7FF) == 0x29) {
+ }
+ if (((ejtag_info->idcode >> 1) & 0x7FF) == 0x29) {
/* we are using a pic32mx so select ejtag port
* as it is not selected by default */
mips_ejtag_set_instr(ejtag_info, MTAP_SW_ETAP);
- LOG_DEBUG("PIC32MX Detected - using EJTAG Interface");
+ LOG_DEBUG("PIC32 Detected - using EJTAG Interface");
mips_m4k->is_pic32mx = true;
}
}
/* init rest of ejtag interface */
- retval = mips_ejtag_init(ejtag_info);
- if (retval != ERROR_OK)
- return retval;
-
- retval = mips32_examine(target);
+ int retval = mips_ejtag_init(ejtag_info);
if (retval != ERROR_OK)
return retval;
- return ERROR_OK;
+ return mips32_examine(target);
}
-static int mips_m4k_bulk_write_memory(struct target *target, uint32_t address,
+static int mips_m4k_bulk_write_memory(struct target *target, target_addr_t address,
uint32_t count, const uint8_t *buffer)
{
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;
- }
+ LOG_DEBUG("address: " TARGET_ADDR_FMT ", count: 0x%8.8" PRIx32 "",
+ address, count);
/* check alignment */
if (address & 0x3u)
@@ -1116,14 +1228,25 @@ static int mips_m4k_bulk_write_memory(struct target *target, uint32_t address,
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 (" TARGET_ADDR_FMT ") is within write area "
+ "(" TARGET_ADDR_FMT "-" TARGET_ADDR_FMT ").",
+ 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;
@@ -1141,20 +1264,17 @@ static int mips_m4k_bulk_write_memory(struct target *target, uint32_t address,
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;
}
-static int mips_m4k_verify_pointer(struct command_context *cmd_ctx,
+static int mips_m4k_verify_pointer(struct command_invocation *cmd,
struct mips_m4k_common *mips_m4k)
{
if (mips_m4k->common_magic != MIPSM4K_COMMON_MAGIC) {
- command_print(cmd_ctx, "target is not an MIPS_M4K");
+ command_print(cmd, "target is not an MIPS_M4K");
return ERROR_TARGET_INVALID;
}
return ERROR_OK;
@@ -1167,12 +1287,12 @@ COMMAND_HANDLER(mips_m4k_handle_cp0_command)
struct mips_m4k_common *mips_m4k = target_to_m4k(target);
struct mips_ejtag *ejtag_info = &mips_m4k->mips32.ejtag_info;
- retval = mips_m4k_verify_pointer(CMD_CTX, mips_m4k);
+ retval = mips_m4k_verify_pointer(CMD, mips_m4k);
if (retval != ERROR_OK)
return retval;
if (target->state != TARGET_HALTED) {
- command_print(CMD_CTX, "target must be stopped for \"%s\" command", CMD_NAME);
+ command_print(CMD, "target must be stopped for \"%s\" command", CMD_NAME);
return ERROR_OK;
}
@@ -1188,12 +1308,12 @@ COMMAND_HANDLER(mips_m4k_handle_cp0_command)
uint32_t value;
retval = mips32_cp0_read(ejtag_info, &value, cp0_reg, cp0_sel);
if (retval != ERROR_OK) {
- command_print(CMD_CTX,
- "couldn't access reg %" PRIi32,
+ command_print(CMD,
+ "couldn't access reg %" PRIu32,
cp0_reg);
return ERROR_OK;
}
- command_print(CMD_CTX, "cp0 reg %" PRIi32 ", select %" PRIi32 ": %8.8" PRIx32,
+ command_print(CMD, "cp0 reg %" PRIu32 ", select %" PRIu32 ": %8.8" PRIx32,
cp0_reg, cp0_sel, value);
} else if (CMD_ARGC == 3) {
@@ -1201,12 +1321,12 @@ COMMAND_HANDLER(mips_m4k_handle_cp0_command)
COMMAND_PARSE_NUMBER(u32, CMD_ARGV[2], value);
retval = mips32_cp0_write(ejtag_info, value, cp0_reg, cp0_sel);
if (retval != ERROR_OK) {
- command_print(CMD_CTX,
- "couldn't access cp0 reg %" PRIi32 ", select %" PRIi32,
+ command_print(CMD,
+ "couldn't access cp0 reg %" PRIu32 ", select %" PRIu32,
cp0_reg, cp0_sel);
return ERROR_OK;
}
- command_print(CMD_CTX, "cp0 reg %" PRIi32 ", select %" PRIi32 ": %8.8" PRIx32,
+ command_print(CMD, "cp0 reg %" PRIu32 ", select %" PRIu32 ": %8.8" PRIx32,
cp0_reg, cp0_sel, value);
}
}
@@ -1214,64 +1334,6 @@ COMMAND_HANDLER(mips_m4k_handle_cp0_command)
return ERROR_OK;
}
-COMMAND_HANDLER(mips_m4k_handle_smp_off_command)
-{
- struct target *target = get_current_target(CMD_CTX);
- /* check target is an smp target */
- struct target_list *head;
- struct target *curr;
- head = target->head;
- target->smp = 0;
- if (head != (struct target_list *)NULL) {
- while (head != (struct target_list *)NULL) {
- curr = head->target;
- curr->smp = 0;
- head = head->next;
- }
- /* fixes the target display to the debugger */
- target->gdb_service->target = target;
- }
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(mips_m4k_handle_smp_on_command)
-{
- struct target *target = get_current_target(CMD_CTX);
- struct target_list *head;
- struct target *curr;
- head = target->head;
- if (head != (struct target_list *)NULL) {
- target->smp = 1;
- while (head != (struct target_list *)NULL) {
- curr = head->target;
- curr->smp = 1;
- head = head->next;
- }
- }
- return ERROR_OK;
-}
-
-COMMAND_HANDLER(mips_m4k_handle_smp_gdb_command)
-{
- struct target *target = get_current_target(CMD_CTX);
- int retval = ERROR_OK;
- struct target_list *head;
- head = target->head;
- if (head != (struct target_list *)NULL) {
- if (CMD_ARGC == 1) {
- int coreid = 0;
- COMMAND_PARSE_NUMBER(int, CMD_ARGV[0], coreid);
- if (ERROR_OK != retval)
- return retval;
- target->gdb_service->core[1] = coreid;
-
- }
- command_print(CMD_CTX, "gdb coreid %d -> %d", 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);
@@ -1279,17 +1341,17 @@ COMMAND_HANDLER(mips_m4k_handle_scan_delay_command)
struct mips_ejtag *ejtag_info = &mips_m4k->mips32.ejtag_info;
if (CMD_ARGC == 1)
- COMMAND_PARSE_NUMBER(u32, CMD_ARGV[0], ejtag_info->scan_delay);
+ 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) {
+ command_print(CMD, "scan delay: %d nsec", ejtag_info->scan_delay);
+ if (ejtag_info->scan_delay >= MIPS32_SCAN_DELAY_LEGACY_MODE) {
ejtag_info->mode = 0;
- command_print(CMD_CTX, "running in legacy mode");
+ command_print(CMD, "running in legacy mode");
} else {
ejtag_info->mode = 1;
- command_print(CMD_CTX, "running in fast queued mode");
+ command_print(CMD, "running in fast queued mode");
}
return ERROR_OK;
@@ -1303,27 +1365,6 @@ static const struct command_registration mips_m4k_exec_command_handlers[] = {
.usage = "regnum [value]",
.help = "display/modify cp0 register",
},
- {
- .name = "smp_off",
- .handler = mips_m4k_handle_smp_off_command,
- .mode = COMMAND_EXEC,
- .help = "Stop smp handling",
- .usage = "",},
-
- {
- .name = "smp_on",
- .handler = mips_m4k_handle_smp_on_command,
- .mode = COMMAND_EXEC,
- .help = "Restart smp handling",
- .usage = "",
- },
- {
- .name = "smp_gdb",
- .handler = mips_m4k_handle_smp_gdb_command,
- .mode = COMMAND_EXEC,
- .help = "display/fix current core played to gdb",
- .usage = "",
- },
{
.name = "scan_delay",
.handler = mips_m4k_handle_scan_delay_command,
@@ -1331,6 +1372,9 @@ static const struct command_registration mips_m4k_exec_command_handlers[] = {
.help = "display/set scan delay in nano seconds",
.usage = "[value]",
},
+ {
+ .chain = smp_command_handlers,
+ },
COMMAND_REGISTRATION_DONE
};
@@ -1354,21 +1398,17 @@ struct target_type mips_m4k_target = {
.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,