* 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 <http://www.gnu.org/licenses/>. *
* *
* *
* Cortex-M3(tm) TRM, ARM DDI 0337E (r1p1) and 0337G (r2p0) *
* any longer.
*/
-/**
- * Returns the type of a break point required by address location
- */
-#define BKPT_TYPE_BY_ADDR(addr) ((addr) < 0x20000000 ? BKPT_HARD : BKPT_SOFT)
-
/* forward declarations */
static int cortex_m_store_core_reg_u32(struct target *target,
uint32_t num, uint32_t value);
+static void cortex_m_dwt_free(struct target *target);
static int cortexm_dap_read_coreregister_u32(struct target *target,
uint32_t *value, int regnum)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
- struct adiv5_dap *swjdp = armv7m->arm.dap;
int retval;
uint32_t dcrdr;
/* because the DCB_DCRDR is used for the emulated dcc channel
* we have to save/restore the DCB_DCRDR when used */
if (target->dbg_msg_enabled) {
- retval = mem_ap_read_u32(swjdp, DCB_DCRDR, &dcrdr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, DCB_DCRDR, &dcrdr);
if (retval != ERROR_OK)
return retval;
}
- retval = mem_ap_write_u32(swjdp, DCB_DCRSR, regnum);
+ retval = mem_ap_write_u32(armv7m->debug_ap, DCB_DCRSR, regnum);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DCRDR, value);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DCRDR, value);
if (retval != ERROR_OK)
return retval;
/* restore DCB_DCRDR - this needs to be in a separate
* transaction otherwise the emulated DCC channel breaks */
if (retval == ERROR_OK)
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DCRDR, dcrdr);
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DCRDR, dcrdr);
}
return retval;
uint32_t value, int regnum)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
- struct adiv5_dap *swjdp = armv7m->arm.dap;
int retval;
uint32_t dcrdr;
/* because the DCB_DCRDR is used for the emulated dcc channel
* we have to save/restore the DCB_DCRDR when used */
if (target->dbg_msg_enabled) {
- retval = mem_ap_read_u32(swjdp, DCB_DCRDR, &dcrdr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, DCB_DCRDR, &dcrdr);
if (retval != ERROR_OK)
return retval;
}
- retval = mem_ap_write_u32(swjdp, DCB_DCRDR, value);
+ retval = mem_ap_write_u32(armv7m->debug_ap, DCB_DCRDR, value);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DCRSR, regnum | DCRSR_WnR);
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DCRSR, regnum | DCRSR_WnR);
if (retval != ERROR_OK)
return retval;
/* restore DCB_DCRDR - this needs to be in a seperate
* transaction otherwise the emulated DCC channel breaks */
if (retval == ERROR_OK)
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DCRDR, dcrdr);
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DCRDR, dcrdr);
}
return retval;
uint32_t mask_on, uint32_t mask_off)
{
struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
+ struct armv7m_common *armv7m = &cortex_m->armv7m;
/* mask off status bits */
cortex_m->dcb_dhcsr &= ~((0xFFFF << 16) | mask_off);
/* create new register mask */
cortex_m->dcb_dhcsr |= DBGKEY | C_DEBUGEN | mask_on;
- return mem_ap_write_atomic_u32(swjdp, DCB_DHCSR, cortex_m->dcb_dhcsr);
+ return mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DHCSR, cortex_m->dcb_dhcsr);
}
static int cortex_m_clear_halt(struct target *target)
{
struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
+ struct armv7m_common *armv7m = &cortex_m->armv7m;
int retval;
/* clear step if any */
cortex_m_write_debug_halt_mask(target, C_HALT, C_STEP);
/* Read Debug Fault Status Register */
- retval = mem_ap_read_atomic_u32(swjdp, NVIC_DFSR, &cortex_m->nvic_dfsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, NVIC_DFSR, &cortex_m->nvic_dfsr);
if (retval != ERROR_OK)
return retval;
/* Clear Debug Fault Status */
- retval = mem_ap_write_atomic_u32(swjdp, NVIC_DFSR, cortex_m->nvic_dfsr);
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, NVIC_DFSR, cortex_m->nvic_dfsr);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG(" NVIC_DFSR 0x%" PRIx32 "", cortex_m->nvic_dfsr);
static int cortex_m_single_step_core(struct target *target)
{
struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
- uint32_t dhcsr_save;
+ struct armv7m_common *armv7m = &cortex_m->armv7m;
int retval;
- /* backup dhcsr reg */
- dhcsr_save = cortex_m->dcb_dhcsr;
-
- /* Mask interrupts before clearing halt, if done already. This avoids
+ /* Mask interrupts before clearing halt, if not done already. This avoids
* Erratum 377497 (fixed in r1p0) where setting MASKINTS while clearing
* HALT can put the core into an unknown state.
*/
if (!(cortex_m->dcb_dhcsr & C_MASKINTS)) {
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DHCSR,
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DHCSR,
DBGKEY | C_MASKINTS | C_HALT | C_DEBUGEN);
if (retval != ERROR_OK)
return retval;
}
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DHCSR,
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DHCSR,
DBGKEY | C_MASKINTS | C_STEP | C_DEBUGEN);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG(" ");
/* restore dhcsr reg */
- cortex_m->dcb_dhcsr = dhcsr_save;
cortex_m_clear_halt(target);
return ERROR_OK;
struct cortex_m_dwt_comparator *dwt_list = cortex_m->dwt_comparator_list;
/* REVISIT The four debug monitor bits are currently ignored... */
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &dcb_demcr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DEMCR, &dcb_demcr);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("DCB_DEMCR = 0x%8.8" PRIx32 "", dcb_demcr);
/* this register is used for emulated dcc channel */
- retval = mem_ap_write_u32(swjdp, DCB_DCRDR, 0);
+ retval = mem_ap_write_u32(armv7m->debug_ap, DCB_DCRDR, 0);
if (retval != ERROR_OK)
return retval;
/* Enable debug requests */
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
if (retval != ERROR_OK)
return retval;
if (!(cortex_m->dcb_dhcsr & C_DEBUGEN)) {
- retval = mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN);
+ retval = cortex_m_write_debug_halt_mask(target, 0, C_HALT | C_STEP | C_MASKINTS);
if (retval != ERROR_OK)
return retval;
}
- /* clear any interrupt masking */
- cortex_m_write_debug_halt_mask(target, 0, C_MASKINTS);
+ /* Restore proper interrupt masking setting. */
+ if (cortex_m->isrmasking_mode == CORTEX_M_ISRMASK_ON)
+ cortex_m_write_debug_halt_mask(target, C_MASKINTS, 0);
+ else
+ cortex_m_write_debug_halt_mask(target, 0, C_MASKINTS);
/* Enable features controlled by ITM and DWT blocks, and catch only
* the vectors we were told to pay attention to.
* choices *EXCEPT* explicitly scripted overrides like "vector_catch"
* or manual updates to the NVIC SHCSR and CCR registers.
*/
- retval = mem_ap_write_u32(swjdp, DCB_DEMCR, TRCENA | armv7m->demcr);
+ retval = mem_ap_write_u32(armv7m->debug_ap, DCB_DEMCR, TRCENA | armv7m->demcr);
if (retval != ERROR_OK)
return retval;
register_cache_invalidate(armv7m->arm.core_cache);
/* make sure we have latest dhcsr flags */
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
return retval;
}
struct adiv5_dap *swjdp = armv7m->arm.dap;
int retval;
- retval = mem_ap_read_u32(swjdp, NVIC_SHCSR, &shcsr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_SHCSR, &shcsr);
if (retval != ERROR_OK)
return retval;
switch (armv7m->exception_number) {
case 2: /* NMI */
break;
case 3: /* Hard Fault */
- retval = mem_ap_read_atomic_u32(swjdp, NVIC_HFSR, &except_sr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, NVIC_HFSR, &except_sr);
if (retval != ERROR_OK)
return retval;
if (except_sr & 0x40000000) {
- retval = mem_ap_read_u32(swjdp, NVIC_CFSR, &cfsr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_CFSR, &cfsr);
if (retval != ERROR_OK)
return retval;
}
break;
case 4: /* Memory Management */
- retval = mem_ap_read_u32(swjdp, NVIC_CFSR, &except_sr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_CFSR, &except_sr);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_read_u32(swjdp, NVIC_MMFAR, &except_ar);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_MMFAR, &except_ar);
if (retval != ERROR_OK)
return retval;
break;
case 5: /* Bus Fault */
- retval = mem_ap_read_u32(swjdp, NVIC_CFSR, &except_sr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_CFSR, &except_sr);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_read_u32(swjdp, NVIC_BFAR, &except_ar);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_BFAR, &except_ar);
if (retval != ERROR_OK)
return retval;
break;
case 6: /* Usage Fault */
- retval = mem_ap_read_u32(swjdp, NVIC_CFSR, &except_sr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_CFSR, &except_sr);
if (retval != ERROR_OK)
return retval;
break;
case 11: /* SVCall */
break;
case 12: /* Debug Monitor */
- retval = mem_ap_read_u32(swjdp, NVIC_DFSR, &except_sr);
+ retval = mem_ap_read_u32(armv7m->debug_ap, NVIC_DFSR, &except_sr);
if (retval != ERROR_OK)
return retval;
break;
struct cortex_m_common *cortex_m = target_to_cm(target);
struct armv7m_common *armv7m = &cortex_m->armv7m;
struct arm *arm = &armv7m->arm;
- struct adiv5_dap *swjdp = armv7m->arm.dap;
struct reg *r;
LOG_DEBUG(" ");
cortex_m_clear_halt(target);
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
if (retval != ERROR_OK)
return retval;
LOG_DEBUG("entered debug state in core mode: %s at PC 0x%" PRIx32 ", target->state: %s",
arm_mode_name(arm->core_mode),
- *(uint32_t *)(arm->pc->value),
+ buf_get_u32(arm->pc->value, 0, 32),
target_state_name(target));
if (armv7m->post_debug_entry) {
int retval = ERROR_OK;
enum target_state prev_target_state = target->state;
struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
+ struct armv7m_common *armv7m = &cortex_m->armv7m;
/* Read from Debug Halting Control and Status Register */
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
if (retval != ERROR_OK) {
target->state = TARGET_UNKNOWN;
return retval;
detected_failure = ERROR_FAIL;
/* refresh status bits */
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
if (retval != ERROR_OK)
return retval;
}
static int cortex_m_soft_reset_halt(struct target *target)
{
struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
+ struct armv7m_common *armv7m = &cortex_m->armv7m;
uint32_t dcb_dhcsr = 0;
int retval, timeout = 0;
LOG_WARNING("soft_reset_halt is deprecated, please use 'reset halt' instead.");
/* Enter debug state on reset; restore DEMCR in endreset_event() */
- retval = mem_ap_write_u32(swjdp, DCB_DEMCR,
+ retval = mem_ap_write_u32(armv7m->debug_ap, DCB_DEMCR,
TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET);
if (retval != ERROR_OK)
return retval;
/* Request a core-only reset */
- retval = mem_ap_write_atomic_u32(swjdp, NVIC_AIRCR,
+ retval = mem_ap_write_atomic_u32(armv7m->debug_ap, NVIC_AIRCR,
AIRCR_VECTKEY | AIRCR_VECTRESET);
if (retval != ERROR_OK)
return retval;
register_cache_invalidate(cortex_m->armv7m.arm.core_cache);
while (timeout < 100) {
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &dcb_dhcsr);
if (retval == ERROR_OK) {
- retval = mem_ap_read_atomic_u32(swjdp, NVIC_DFSR,
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, NVIC_DFSR,
&cortex_m->nvic_dfsr);
if (retval != ERROR_OK)
return retval;
}
static int cortex_m_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)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
struct breakpoint *breakpoint = NULL;
/* Single step past breakpoint at current address */
breakpoint = breakpoint_find(target, resume_pc);
if (breakpoint) {
- LOG_DEBUG("unset breakpoint at 0x%8.8" PRIx32 " (ID: %" PRIu32 ")",
+ LOG_DEBUG("unset breakpoint at " TARGET_ADDR_FMT " (ID: %" PRIu32 ")",
breakpoint->address,
breakpoint->unique_id);
cortex_m_unset_breakpoint(target, breakpoint);
/* int irqstepcount = 0; */
static int cortex_m_step(struct target *target, int current,
- uint32_t address, int handle_breakpoints)
+ target_addr_t address, int handle_breakpoints)
{
struct cortex_m_common *cortex_m = target_to_cm(target);
struct armv7m_common *armv7m = &cortex_m->armv7m;
- struct adiv5_dap *swjdp = armv7m->arm.dap;
struct breakpoint *breakpoint = NULL;
struct reg *pc = armv7m->arm.pc;
bool bkpt_inst_found = false;
if (breakpoint)
retval = cortex_m_set_breakpoint(target, breakpoint);
else
- retval = breakpoint_add(target, pc_value, 2, BKPT_TYPE_BY_ADDR(pc_value));
+ retval = breakpoint_add(target, pc_value, 2, BKPT_HARD);
bool tmp_bp_set = (retval == ERROR_OK);
/* No more breakpoints left, just do a step */
/* Wait for pending handlers to complete or timeout */
do {
- retval = mem_ap_read_atomic_u32(swjdp,
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap,
DCB_DHCSR,
&cortex_m->dcb_dhcsr);
if (retval != ERROR_OK) {
}
}
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
if (retval != ERROR_OK)
return retval;
static int cortex_m_assert_reset(struct target *target)
{
struct cortex_m_common *cortex_m = target_to_cm(target);
- struct adiv5_dap *swjdp = cortex_m->armv7m.arm.dap;
+ struct armv7m_common *armv7m = &cortex_m->armv7m;
enum cortex_m_soft_reset_config reset_config = cortex_m->soft_reset_config;
LOG_DEBUG("target->state: %s",
bool srst_asserted = false;
+ if (!target_was_examined(target)) {
+ if (jtag_reset_config & RESET_HAS_SRST) {
+ adapter_assert_reset();
+ if (target->reset_halt)
+ LOG_ERROR("Target not examined, will not halt after reset!");
+ return ERROR_OK;
+ } else {
+ LOG_ERROR("Target not examined, reset NOT asserted!");
+ return ERROR_FAIL;
+ }
+ }
+
if ((jtag_reset_config & RESET_HAS_SRST) &&
(jtag_reset_config & RESET_SRST_NO_GATING)) {
adapter_assert_reset();
/* Enable debug requests */
int retval;
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m->dcb_dhcsr);
- if (retval != ERROR_OK)
- return retval;
- if (!(cortex_m->dcb_dhcsr & C_DEBUGEN)) {
- retval = mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN);
- if (retval != ERROR_OK)
- return retval;
- }
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DHCSR, &cortex_m->dcb_dhcsr);
+ /* Store important errors instead of failing and proceed to reset assert */
+
+ if (retval != ERROR_OK || !(cortex_m->dcb_dhcsr & C_DEBUGEN))
+ retval = cortex_m_write_debug_halt_mask(target, 0, C_HALT | C_STEP | C_MASKINTS);
/* If the processor is sleeping in a WFI or WFE instruction, the
* C_HALT bit must be asserted to regain control */
- if (cortex_m->dcb_dhcsr & S_SLEEP) {
- retval = mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_HALT | C_DEBUGEN);
- if (retval != ERROR_OK)
- return retval;
- }
+ if (retval == ERROR_OK && (cortex_m->dcb_dhcsr & S_SLEEP))
+ retval = cortex_m_write_debug_halt_mask(target, C_HALT, 0);
- retval = mem_ap_write_u32(swjdp, DCB_DCRDR, 0);
- if (retval != ERROR_OK)
- return retval;
+ mem_ap_write_u32(armv7m->debug_ap, DCB_DCRDR, 0);
+ /* Ignore less important errors */
if (!target->reset_halt) {
/* Set/Clear C_MASKINTS in a separate operation */
- if (cortex_m->dcb_dhcsr & C_MASKINTS) {
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DHCSR,
- DBGKEY | C_DEBUGEN | C_HALT);
- if (retval != ERROR_OK)
- return retval;
- }
+ if (cortex_m->dcb_dhcsr & C_MASKINTS)
+ cortex_m_write_debug_halt_mask(target, 0, C_MASKINTS);
/* clear any debug flags before resuming */
cortex_m_clear_halt(target);
* bad vector table entries. Should this include MMERR or
* other flags too?
*/
- retval = mem_ap_write_atomic_u32(swjdp, DCB_DEMCR,
+ int retval2;
+ retval2 = mem_ap_write_atomic_u32(armv7m->debug_ap, DCB_DEMCR,
TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET);
- if (retval != ERROR_OK)
- return retval;
+ if (retval != ERROR_OK || retval2 != ERROR_OK)
+ LOG_INFO("AP write error, reset will not halt");
}
if (jtag_reset_config & RESET_HAS_SRST) {
/* default to asserting srst */
if (!srst_asserted)
adapter_assert_reset();
+
+ /* srst is asserted, ignore AP access errors */
+ retval = ERROR_OK;
} else {
/* Use a standard Cortex-M3 software reset mechanism.
* We default to using VECRESET as it is supported on all current cores.
* This has the disadvantage of not resetting the peripherals, so a
* reset-init event handler is needed to perform any peripheral resets.
*/
- retval = mem_ap_write_atomic_u32(swjdp, NVIC_AIRCR,
- AIRCR_VECTKEY | ((reset_config == CORTEX_M_RESET_SYSRESETREQ)
- ? AIRCR_SYSRESETREQ : AIRCR_VECTRESET));
- if (retval != ERROR_OK)
- return retval;
-
LOG_DEBUG("Using Cortex-M %s", (reset_config == CORTEX_M_RESET_SYSRESETREQ)
? "SYSRESETREQ" : "VECTRESET");
"handler to reset any peripherals or configure hardware srst support.");
}
- /*
- SAM4L needs to execute security initalization
- startup sequence before AP access would be enabled.
- During the intialization CDBGPWRUPACK is pulled low and we
- need to wait for it to be set to 1 again.
- */
- retval = dap_dp_poll_register(swjdp, DP_CTRL_STAT,
- CDBGPWRUPACK, CDBGPWRUPACK, 100);
- if (retval != ERROR_OK) {
- LOG_ERROR("Failed waitnig for CDBGPWRUPACK");
- return ERROR_FAIL;
- }
+ int retval3;
+ retval3 = mem_ap_write_atomic_u32(armv7m->debug_ap, NVIC_AIRCR,
+ AIRCR_VECTKEY | ((reset_config == CORTEX_M_RESET_SYSRESETREQ)
+ ? AIRCR_SYSRESETREQ : AIRCR_VECTRESET));
+ if (retval3 != ERROR_OK)
+ LOG_DEBUG("Ignoring AP write error right after reset");
- {
+ retval3 = dap_dp_init(armv7m->debug_ap->dap);
+ if (retval3 != ERROR_OK)
+ LOG_ERROR("DP initialisation failed");
+
+ else {
/* I do not know why this is necessary, but it
* fixes strange effects (step/resume cause NMI
* after reset) on LM3S6918 -- Michael Schwingen
*/
uint32_t tmp;
- retval = mem_ap_read_atomic_u32(swjdp, NVIC_AIRCR, &tmp);
- if (retval != ERROR_OK)
- return retval;
+ mem_ap_read_atomic_u32(armv7m->debug_ap, NVIC_AIRCR, &tmp);
}
}
register_cache_invalidate(cortex_m->armv7m.arm.core_cache);
+ /* now return stored error code if any */
+ if (retval != ERROR_OK)
+ return retval;
+
if (target->reset_halt) {
retval = target_halt(target);
if (retval != ERROR_OK)
static int cortex_m_deassert_reset(struct target *target)
{
+ struct armv7m_common *armv7m = &target_to_cm(target)->armv7m;
+
LOG_DEBUG("target->state: %s",
target_state_name(target));
/* deassert reset lines */
adapter_deassert_reset();
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
+
+ if ((jtag_reset_config & RESET_HAS_SRST) &&
+ !(jtag_reset_config & RESET_SRST_NO_GATING) &&
+ target_was_examined(target)) {
+ int retval = dap_dp_init(armv7m->debug_ap->dap);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("DP initialisation failed");
+ return retval;
+ }
+ }
+
return ERROR_OK;
}
{
int retval;
int fp_num = 0;
- uint32_t hilo;
struct cortex_m_common *cortex_m = target_to_cm(target);
struct cortex_m_fp_comparator *comparator_list = cortex_m->fp_comparator_list;
return ERROR_OK;
}
- if (cortex_m->auto_bp_type)
- breakpoint->type = BKPT_TYPE_BY_ADDR(breakpoint->address);
-
if (breakpoint->type == BKPT_HARD) {
+ uint32_t fpcr_value;
while (comparator_list[fp_num].used && (fp_num < cortex_m->fp_num_code))
fp_num++;
if (fp_num >= cortex_m->fp_num_code) {
return ERROR_FAIL;
}
breakpoint->set = fp_num + 1;
- hilo = (breakpoint->address & 0x2) ? FPCR_REPLACE_BKPT_HIGH : FPCR_REPLACE_BKPT_LOW;
+ fpcr_value = breakpoint->address | 1;
+ if (cortex_m->fp_rev == 0) {
+ if (breakpoint->address > 0x1FFFFFFF) {
+ LOG_ERROR("Cortex-M Flash Patch Breakpoint rev.1 cannot handle HW breakpoint above address 0x1FFFFFFE");
+ return ERROR_FAIL;
+ }
+ uint32_t hilo;
+ hilo = (breakpoint->address & 0x2) ? FPCR_REPLACE_BKPT_HIGH : FPCR_REPLACE_BKPT_LOW;
+ fpcr_value = (fpcr_value & 0x1FFFFFFC) | hilo | 1;
+ } else if (cortex_m->fp_rev > 1) {
+ LOG_ERROR("Unhandled Cortex-M Flash Patch Breakpoint architecture revision");
+ return ERROR_FAIL;
+ }
comparator_list[fp_num].used = 1;
- comparator_list[fp_num].fpcr_value = (breakpoint->address & 0x1FFFFFFC) | hilo | 1;
+ comparator_list[fp_num].fpcr_value = fpcr_value;
target_write_u32(target, comparator_list[fp_num].fpcr_address,
comparator_list[fp_num].fpcr_value);
LOG_DEBUG("fpc_num %i fpcr_value 0x%" PRIx32 "",
breakpoint->set = true;
}
- LOG_DEBUG("BPID: %" PRIu32 ", Type: %d, Address: 0x%08" PRIx32 " Length: %d (set=%d)",
+ LOG_DEBUG("BPID: %" PRIu32 ", Type: %d, Address: " TARGET_ADDR_FMT " Length: %d (set=%d)",
breakpoint->unique_id,
(int)(breakpoint->type),
breakpoint->address,
return ERROR_OK;
}
- LOG_DEBUG("BPID: %" PRIu32 ", Type: %d, Address: 0x%08" PRIx32 " Length: %d (set=%d)",
+ LOG_DEBUG("BPID: %" PRIu32 ", Type: %d, Address: " TARGET_ADDR_FMT " Length: %d (set=%d)",
breakpoint->unique_id,
(int)(breakpoint->type),
breakpoint->address,
{
struct cortex_m_common *cortex_m = target_to_cm(target);
- if (cortex_m->auto_bp_type)
- breakpoint->type = BKPT_TYPE_BY_ADDR(breakpoint->address);
-
- if (breakpoint->type != BKPT_TYPE_BY_ADDR(breakpoint->address)) {
- if (breakpoint->type == BKPT_HARD) {
- LOG_INFO("flash patch comparator requested outside code memory region");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- }
-
- if (breakpoint->type == BKPT_SOFT) {
- LOG_INFO("soft breakpoint requested in code (flash) memory region");
- return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
- }
- }
-
if ((breakpoint->type == BKPT_HARD) && (cortex_m->fp_code_available < 1)) {
LOG_INFO("no flash patch comparator unit available for hardware breakpoint");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
+ if (breakpoint->length == 3) {
+ LOG_DEBUG("Using a two byte breakpoint for 32bit Thumb-2 request");
+ breakpoint->length = 2;
+ }
+
if ((breakpoint->length != 2)) {
LOG_INFO("only breakpoints of two bytes length supported");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
return ERROR_TARGET_NOT_HALTED;
}
- if (cortex_m->auto_bp_type)
- breakpoint->type = BKPT_TYPE_BY_ADDR(breakpoint->address);
-
if (breakpoint->set)
cortex_m_unset_breakpoint(target, breakpoint);
LOG_DEBUG("load from core reg %i value 0x%" PRIx32 "", (int)num, *value);
break;
+ case ARMV7M_FPSCR:
+ /* Floating-point Status and Registers */
+ retval = target_write_u32(target, DCB_DCRSR, 0x21);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = target_read_u32(target, DCB_DCRDR, value);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("load from FPSCR value 0x%" PRIx32, *value);
+ break;
+
+ case ARMV7M_S0 ... ARMV7M_S31:
+ /* Floating-point Status and Registers */
+ retval = target_write_u32(target, DCB_DCRSR, num - ARMV7M_S0 + 0x40);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = target_read_u32(target, DCB_DCRDR, value);
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("load from FPU reg S%d value 0x%" PRIx32,
+ (int)(num - ARMV7M_S0), *value);
+ break;
+
case ARMV7M_PRIMASK:
case ARMV7M_BASEPRI:
case ARMV7M_FAULTMASK:
LOG_DEBUG("write core reg %i value 0x%" PRIx32 "", (int)num, value);
break;
+ case ARMV7M_FPSCR:
+ /* Floating-point Status and Registers */
+ retval = target_write_u32(target, DCB_DCRDR, value);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = target_write_u32(target, DCB_DCRSR, 0x21 | (1<<16));
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("write FPSCR value 0x%" PRIx32, value);
+ break;
+
+ case ARMV7M_S0 ... ARMV7M_S31:
+ /* Floating-point Status and Registers */
+ retval = target_write_u32(target, DCB_DCRDR, value);
+ if (retval != ERROR_OK)
+ return retval;
+ retval = target_write_u32(target, DCB_DCRSR, (num - ARMV7M_S0 + 0x40) | (1<<16));
+ if (retval != ERROR_OK)
+ return retval;
+ LOG_DEBUG("write FPU reg S%d value 0x%" PRIx32,
+ (int)(num - ARMV7M_S0), value);
+ break;
+
case ARMV7M_PRIMASK:
case ARMV7M_BASEPRI:
case ARMV7M_FAULTMASK:
return ERROR_OK;
}
-static int cortex_m_read_memory(struct target *target, uint32_t address,
+static int cortex_m_read_memory(struct target *target, target_addr_t address,
uint32_t size, uint32_t count, uint8_t *buffer)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
- struct adiv5_dap *swjdp = armv7m->arm.dap;
if (armv7m->arm.is_armv6m) {
/* armv6m does not handle unaligned memory access */
return ERROR_TARGET_UNALIGNED_ACCESS;
}
- return mem_ap_read(swjdp, buffer, size, count, address, true);
+ return mem_ap_read_buf(armv7m->debug_ap, buffer, size, count, address);
}
-static int cortex_m_write_memory(struct target *target, uint32_t address,
+static int cortex_m_write_memory(struct target *target, target_addr_t address,
uint32_t size, uint32_t count, const uint8_t *buffer)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
- struct adiv5_dap *swjdp = armv7m->arm.dap;
if (armv7m->arm.is_armv6m) {
/* armv6m does not handle unaligned memory access */
return ERROR_TARGET_UNALIGNED_ACCESS;
}
- return mem_ap_write(swjdp, buffer, size, count, address, true);
+ return mem_ap_write_buf(armv7m->debug_ap, buffer, size, count, address);
}
static int cortex_m_init_target(struct command_context *cmd_ctx,
struct target *target)
{
armv7m_build_reg_cache(target);
+ arm_semihosting_init(target);
return ERROR_OK;
}
+void cortex_m_deinit_target(struct target *target)
+{
+ struct cortex_m_common *cortex_m = target_to_cm(target);
+
+ free(cortex_m->fp_comparator_list);
+
+ cortex_m_dwt_free(target);
+ armv7m_free_reg_cache(target);
+
+ free(target->private_config);
+ free(cortex_m);
+}
+
+int cortex_m_profiling(struct target *target, uint32_t *samples,
+ uint32_t max_num_samples, uint32_t *num_samples, uint32_t seconds)
+{
+ struct timeval timeout, now;
+ struct armv7m_common *armv7m = target_to_armv7m(target);
+ uint32_t reg_value;
+ bool use_pcsr = false;
+ int retval = ERROR_OK;
+ struct reg *reg;
+
+ gettimeofday(&timeout, NULL);
+ timeval_add_time(&timeout, seconds, 0);
+
+ retval = target_read_u32(target, DWT_PCSR, ®_value);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Error while reading PCSR");
+ return retval;
+ }
+
+ if (reg_value != 0) {
+ use_pcsr = true;
+ LOG_INFO("Starting Cortex-M profiling. Sampling DWT_PCSR as fast as we can...");
+ } else {
+ LOG_INFO("Starting profiling. Halting and resuming the"
+ " target as often as we can...");
+ reg = register_get_by_name(target->reg_cache, "pc", 1);
+ }
+
+ /* Make sure the target is running */
+ target_poll(target);
+ if (target->state == TARGET_HALTED)
+ retval = target_resume(target, 1, 0, 0, 0);
+
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Error while resuming target");
+ return retval;
+ }
+
+ uint32_t sample_count = 0;
+
+ for (;;) {
+ if (use_pcsr) {
+ if (armv7m && armv7m->debug_ap) {
+ uint32_t read_count = max_num_samples - sample_count;
+ if (read_count > 1024)
+ read_count = 1024;
+
+ retval = mem_ap_read_buf_noincr(armv7m->debug_ap,
+ (void *)&samples[sample_count],
+ 4, read_count, DWT_PCSR);
+ sample_count += read_count;
+ } else {
+ target_read_u32(target, DWT_PCSR, &samples[sample_count++]);
+ }
+ } else {
+ target_poll(target);
+ if (target->state == TARGET_HALTED) {
+ reg_value = buf_get_u32(reg->value, 0, 32);
+ /* current pc, addr = 0, do not handle breakpoints, not debugging */
+ retval = target_resume(target, 1, 0, 0, 0);
+ samples[sample_count++] = reg_value;
+ target_poll(target);
+ alive_sleep(10); /* sleep 10ms, i.e. <100 samples/second. */
+ } else if (target->state == TARGET_RUNNING) {
+ /* We want to quickly sample the PC. */
+ retval = target_halt(target);
+ } else {
+ LOG_INFO("Target not halted or running");
+ retval = ERROR_OK;
+ break;
+ }
+ }
+
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Error while reading %s", use_pcsr ? "PCSR" : "target pc");
+ return retval;
+ }
+
+
+ gettimeofday(&now, NULL);
+ if (sample_count >= max_num_samples || timeval_compare(&now, &timeout) > 0) {
+ LOG_INFO("Profiling completed. %" PRIu32 " samples.", sample_count);
+ break;
+ }
+ }
+
+ *num_samples = sample_count;
+ return retval;
+}
+
+
/* REVISIT cache valid/dirty bits are unmaintained. We could set "valid"
* on r/w if the core is not running, and clear on resume or reset ... or
* at least, in a post_restore_context() method.
struct dwt_reg_state {
struct target *target;
uint32_t addr;
- uint32_t value; /* scratch/cache */
+ uint8_t value[4]; /* scratch/cache */
};
static int cortex_m_dwt_get_reg(struct reg *reg)
{
struct dwt_reg_state *state = reg->arch_info;
- return target_read_u32(state->target, state->addr, &state->value);
+ uint32_t tmp;
+ int retval = target_read_u32(state->target, state->addr, &tmp);
+ if (retval != ERROR_OK)
+ return retval;
+
+ buf_set_u32(state->value, 0, 32, tmp);
+ return ERROR_OK;
}
static int cortex_m_dwt_set_reg(struct reg *reg, uint8_t *buf)
struct dwt_reg {
uint32_t addr;
- char *name;
+ const char *name;
unsigned size;
};
-static struct dwt_reg dwt_base_regs[] = {
+static const struct dwt_reg dwt_base_regs[] = {
{ DWT_CTRL, "dwt_ctrl", 32, },
/* NOTE that Erratum 532314 (fixed r2p0) affects CYCCNT: it wrongly
* increments while the core is asleep.
/* plus some 8 bit counters, useful for profiling with TPIU */
};
-static struct dwt_reg dwt_comp[] = {
+static const struct dwt_reg dwt_comp[] = {
#define DWT_COMPARATOR(i) \
{ DWT_COMP0 + 0x10 * (i), "dwt_" #i "_comp", 32, }, \
{ DWT_MASK0 + 0x10 * (i), "dwt_" #i "_mask", 4, }, \
DWT_COMPARATOR(1),
DWT_COMPARATOR(2),
DWT_COMPARATOR(3),
+ DWT_COMPARATOR(4),
+ DWT_COMPARATOR(5),
+ DWT_COMPARATOR(6),
+ DWT_COMPARATOR(7),
+ DWT_COMPARATOR(8),
+ DWT_COMPARATOR(9),
+ DWT_COMPARATOR(10),
+ DWT_COMPARATOR(11),
+ DWT_COMPARATOR(12),
+ DWT_COMPARATOR(13),
+ DWT_COMPARATOR(14),
+ DWT_COMPARATOR(15),
#undef DWT_COMPARATOR
};
.set = cortex_m_dwt_set_reg,
};
-static void cortex_m_dwt_addreg(struct target *t, struct reg *r, struct dwt_reg *d)
+static void cortex_m_dwt_addreg(struct target *t, struct reg *r, const struct dwt_reg *d)
{
struct dwt_reg_state *state;
r->name = d->name;
r->size = d->size;
- r->value = &state->value;
+ r->value = state->value;
r->arch_info = state;
r->type = &dwt_reg_type;
}
int reg, i;
target_read_u32(target, DWT_CTRL, &dwtcr);
+ LOG_DEBUG("DWT_CTRL: 0x%" PRIx32, dwtcr);
if (!dwtcr) {
LOG_DEBUG("no DWT");
return;
*/
}
+static void cortex_m_dwt_free(struct target *target)
+{
+ struct cortex_m_common *cm = target_to_cm(target);
+ struct reg_cache *cache = cm->dwt_cache;
+
+ free(cm->dwt_comparator_list);
+ cm->dwt_comparator_list = NULL;
+ cm->dwt_num_comp = 0;
+
+ if (cache) {
+ register_unlink_cache(&target->reg_cache, cache);
+
+ if (cache->reg_list) {
+ for (size_t i = 0; i < cache->num_regs; i++)
+ free(cache->reg_list[i].arch_info);
+ free(cache->reg_list);
+ }
+ free(cache);
+ }
+ cm->dwt_cache = NULL;
+}
+
#define MVFR0 0xe000ef40
#define MVFR1 0xe000ef44
#define MVFR0_DEFAULT_M4 0x10110021
#define MVFR1_DEFAULT_M4 0x11000011
+#define MVFR0_DEFAULT_M7_SP 0x10110021
+#define MVFR0_DEFAULT_M7_DP 0x10110221
+#define MVFR1_DEFAULT_M7_SP 0x11000011
+#define MVFR1_DEFAULT_M7_DP 0x12000011
+
int cortex_m_examine(struct target *target)
{
int retval;
/* stlink shares the examine handler but does not support
* all its calls */
if (!armv7m->stlink) {
- retval = ahbap_debugport_init(swjdp);
+ if (cortex_m->apsel < 0) {
+ /* Search for the MEM-AP */
+ retval = dap_find_ap(swjdp, AP_TYPE_AHB_AP, &armv7m->debug_ap);
+ if (retval != ERROR_OK) {
+ LOG_ERROR("Could not find MEM-AP to control the core");
+ return retval;
+ }
+ } else {
+ armv7m->debug_ap = dap_ap(swjdp, cortex_m->apsel);
+ }
+
+ /* Leave (only) generic DAP stuff for debugport_init(); */
+ armv7m->debug_ap->memaccess_tck = 8;
+
+ retval = mem_ap_init(armv7m->debug_ap);
if (retval != ERROR_OK)
return retval;
}
LOG_DEBUG("Cortex-M%d r%" PRId8 "p%" PRId8 " processor detected",
i, (uint8_t)((cpuid >> 20) & 0xf), (uint8_t)((cpuid >> 0) & 0xf));
+ if (i == 7) {
+ uint8_t rev, patch;
+ rev = (cpuid >> 20) & 0xf;
+ patch = (cpuid >> 0) & 0xf;
+ if ((rev == 0) && (patch < 2))
+ LOG_WARNING("Silicon bug: single stepping will enter pending exception handler!");
+ }
LOG_DEBUG("cpuid: 0x%8.8" PRIx32 "", cpuid);
- /* test for floating point feature on cortex-m4 */
if (i == 4) {
target_read_u32(target, MVFR0, &mvfr0);
target_read_u32(target, MVFR1, &mvfr1);
+ /* test for floating point feature on Cortex-M4 */
if ((mvfr0 == MVFR0_DEFAULT_M4) && (mvfr1 == MVFR1_DEFAULT_M4)) {
LOG_DEBUG("Cortex-M%d floating point feature FPv4_SP found", i);
armv7m->fp_feature = FPv4_SP;
}
+ } else if (i == 7) {
+ target_read_u32(target, MVFR0, &mvfr0);
+ target_read_u32(target, MVFR1, &mvfr1);
+
+ /* test for floating point features on Cortex-M7 */
+ if ((mvfr0 == MVFR0_DEFAULT_M7_SP) && (mvfr1 == MVFR1_DEFAULT_M7_SP)) {
+ LOG_DEBUG("Cortex-M%d floating point feature FPv5_SP found", i);
+ armv7m->fp_feature = FPv5_SP;
+ } else if ((mvfr0 == MVFR0_DEFAULT_M7_DP) && (mvfr1 == MVFR1_DEFAULT_M7_DP)) {
+ LOG_DEBUG("Cortex-M%d floating point feature FPv5_DP found", i);
+ armv7m->fp_feature = FPv5_DP;
+ }
} else if (i == 0) {
/* Cortex-M0 does not support unaligned memory access */
armv7m->arm.is_armv6m = true;
}
- if (i == 4 || i == 3) {
- /* Cortex-M3/M4 has 4096 bytes autoincrement range */
- armv7m->dap.tar_autoincr_block = (1 << 12);
+ if (armv7m->fp_feature == FP_NONE &&
+ armv7m->arm.core_cache->num_regs > ARMV7M_NUM_CORE_REGS_NOFP) {
+ /* free unavailable FPU registers */
+ size_t idx;
+
+ for (idx = ARMV7M_NUM_CORE_REGS_NOFP;
+ idx < armv7m->arm.core_cache->num_regs;
+ idx++) {
+ free(armv7m->arm.core_cache->reg_list[idx].value);
+ free(armv7m->arm.core_cache->reg_list[idx].feature);
+ free(armv7m->arm.core_cache->reg_list[idx].reg_data_type);
+ }
+ armv7m->arm.core_cache->num_regs = ARMV7M_NUM_CORE_REGS_NOFP;
+ }
+
+ if (!armv7m->stlink) {
+ if (i == 3 || i == 4)
+ /* Cortex-M3/M4 have 4096 bytes autoincrement range,
+ * s. ARM IHI 0031C: MEM-AP 7.2.2 */
+ armv7m->debug_ap->tar_autoincr_block = (1 << 12);
+ else if (i == 7)
+ /* Cortex-M7 has only 1024 bytes autoincrement range */
+ armv7m->debug_ap->tar_autoincr_block = (1 << 10);
+ }
+
+ /* Configure trace modules */
+ retval = target_write_u32(target, DCB_DEMCR, TRCENA | armv7m->demcr);
+ if (retval != ERROR_OK)
+ return retval;
+
+ if (armv7m->trace_config.config_type != TRACE_CONFIG_TYPE_DISABLED) {
+ armv7m_trace_tpiu_config(target);
+ armv7m_trace_itm_config(target);
}
/* NOTE: FPB and DWT are both optional. */
/* Setup FPB */
target_read_u32(target, FP_CTRL, &fpcr);
- cortex_m->auto_bp_type = 1;
/* bits [14:12] and [7:4] */
cortex_m->fp_num_code = ((fpcr >> 8) & 0x70) | ((fpcr >> 4) & 0xF);
cortex_m->fp_num_lit = (fpcr >> 8) & 0xF;
cortex_m->fp_code_available = cortex_m->fp_num_code;
+ /* Detect flash patch revision, see RM DDI 0403E.b page C1-817.
+ Revision is zero base, fp_rev == 1 means Rev.2 ! */
+ cortex_m->fp_rev = (fpcr >> 28) & 0xf;
+ free(cortex_m->fp_comparator_list);
cortex_m->fp_comparator_list = calloc(
cortex_m->fp_num_code + cortex_m->fp_num_lit,
sizeof(struct cortex_m_fp_comparator));
cortex_m->fp_num_lit);
/* Setup DWT */
+ cortex_m_dwt_free(target);
cortex_m_dwt_setup(cortex_m, target);
/* These hardware breakpoints only work for code in flash! */
static int cortex_m_dcc_read(struct target *target, uint8_t *value, uint8_t *ctrl)
{
struct armv7m_common *armv7m = target_to_armv7m(target);
- struct adiv5_dap *swjdp = armv7m->arm.dap;
uint16_t dcrdr;
uint8_t buf[2];
int retval;
- retval = mem_ap_read(swjdp, buf, 2, 1, DCB_DCRDR, false);
+ retval = mem_ap_read_buf_noincr(armv7m->debug_ap, buf, 2, 1, DCB_DCRDR);
if (retval != ERROR_OK)
return retval;
* signify we have read data */
if (dcrdr & (1 << 0)) {
target_buffer_set_u16(target, buf, 0);
- retval = mem_ap_write(swjdp, buf, 2, 1, DCB_DCRDR, false);
+ retval = mem_ap_write_buf_noincr(armv7m->debug_ap, buf, 2, 1, DCB_DCRDR);
if (retval != ERROR_OK)
return retval;
}
uint32_t i;
for (i = 0; i < (size * 4); i++) {
- cortex_m_dcc_read(target, &data, &ctrl);
+ int retval = cortex_m_dcc_read(target, &data, &ctrl);
+ if (retval != ERROR_OK)
+ return retval;
buffer[i] = data;
}
if (target->state == TARGET_RUNNING) {
uint8_t data;
uint8_t ctrl;
+ int retval;
- cortex_m_dcc_read(target, &data, &ctrl);
+ retval = cortex_m_dcc_read(target, &data, &ctrl);
+ if (retval != ERROR_OK)
+ return retval;
/* check if we have data */
if (ctrl & (1 << 0)) {
/* we assume target is quick enough */
request = data;
- cortex_m_dcc_read(target, &data, &ctrl);
- request |= (data << 8);
- cortex_m_dcc_read(target, &data, &ctrl);
- request |= (data << 16);
- cortex_m_dcc_read(target, &data, &ctrl);
- request |= (data << 24);
+ for (int i = 1; i <= 3; i++) {
+ retval = cortex_m_dcc_read(target, &data, &ctrl);
+ if (retval != ERROR_OK)
+ return retval;
+ request |= ((uint32_t)data << (i * 8));
+ }
target_request(target, request);
}
}
}
static int cortex_m_init_arch_info(struct target *target,
- struct cortex_m_common *cortex_m, struct jtag_tap *tap)
+ struct cortex_m_common *cortex_m, struct adiv5_dap *dap)
{
- int retval;
struct armv7m_common *armv7m = &cortex_m->armv7m;
armv7m_init_arch_info(target, armv7m);
- /* prepare JTAG information for the new target */
- cortex_m->jtag_info.tap = tap;
- cortex_m->jtag_info.scann_size = 4;
-
/* default reset mode is to use srst if fitted
* if not it will use CORTEX_M3_RESET_VECTRESET */
cortex_m->soft_reset_config = CORTEX_M_RESET_VECTRESET;
- armv7m->arm.dap = &armv7m->dap;
-
- /* Leave (only) generic DAP stuff for debugport_init(); */
- armv7m->dap.jtag_info = &cortex_m->jtag_info;
- armv7m->dap.memaccess_tck = 8;
-
- /* Cortex-M3/M4 has 4096 bytes autoincrement range
- * but set a safe default to 1024 to support Cortex-M0
- * this will be changed in cortex_m3_examine if a M3/M4 is detected */
- armv7m->dap.tar_autoincr_block = (1 << 10);
+ armv7m->arm.dap = dap;
/* register arch-specific functions */
armv7m->examine_debug_reason = cortex_m_examine_debug_reason;
target_register_timer_callback(cortex_m_handle_target_request, 1, 1, target);
- retval = arm_jtag_setup_connection(&cortex_m->jtag_info);
- if (retval != ERROR_OK)
- return retval;
-
return ERROR_OK;
}
static int cortex_m_target_create(struct target *target, Jim_Interp *interp)
{
struct cortex_m_common *cortex_m = calloc(1, sizeof(struct cortex_m_common));
-
cortex_m->common_magic = CORTEX_M_COMMON_MAGIC;
- cortex_m_init_arch_info(target, cortex_m, target->tap);
+ struct adiv5_private_config *pc;
+
+ pc = (struct adiv5_private_config *)target->private_config;
+ if (adiv5_verify_config(pc) != ERROR_OK)
+ return ERROR_FAIL;
+
+ cortex_m->apsel = pc->ap_num;
+
+ cortex_m_init_arch_info(target, cortex_m, pc->dap);
return ERROR_OK;
}
* cortexm3_target structure, which is only used with CM3 targets.
*/
-static const struct {
- char name[10];
- unsigned mask;
-} vec_ids[] = {
- { "hard_err", VC_HARDERR, },
- { "int_err", VC_INTERR, },
- { "bus_err", VC_BUSERR, },
- { "state_err", VC_STATERR, },
- { "chk_err", VC_CHKERR, },
- { "nocp_err", VC_NOCPERR, },
- { "mm_err", VC_MMERR, },
- { "reset", VC_CORERESET, },
-};
-
COMMAND_HANDLER(handle_cortex_m_vector_catch_command)
{
struct target *target = get_current_target(CMD_CTX);
struct cortex_m_common *cortex_m = target_to_cm(target);
struct armv7m_common *armv7m = &cortex_m->armv7m;
- struct adiv5_dap *swjdp = armv7m->arm.dap;
uint32_t demcr = 0;
int retval;
+ static const struct {
+ char name[10];
+ unsigned mask;
+ } vec_ids[] = {
+ { "hard_err", VC_HARDERR, },
+ { "int_err", VC_INTERR, },
+ { "bus_err", VC_BUSERR, },
+ { "state_err", VC_STATERR, },
+ { "chk_err", VC_CHKERR, },
+ { "nocp_err", VC_NOCPERR, },
+ { "mm_err", VC_MMERR, },
+ { "reset", VC_CORERESET, },
+ };
+
retval = cortex_m_verify_pointer(CMD_CTX, cortex_m);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &demcr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DEMCR, &demcr);
if (retval != ERROR_OK)
return retval;
demcr |= catch;
/* write, but don't assume it stuck (why not??) */
- retval = mem_ap_write_u32(swjdp, DCB_DEMCR, demcr);
+ retval = mem_ap_write_u32(armv7m->debug_ap, DCB_DEMCR, demcr);
if (retval != ERROR_OK)
return retval;
- retval = mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &demcr);
+ retval = mem_ap_read_atomic_u32(armv7m->debug_ap, DCB_DEMCR, &demcr);
if (retval != ERROR_OK)
return retval;
{
.chain = armv7m_command_handlers,
},
+ {
+ .chain = armv7m_trace_command_handlers,
+ },
{
.name = "cortex_m",
.mode = COMMAND_EXEC,
.commands = cortex_m_command_handlers,
.target_create = cortex_m_target_create,
+ .target_jim_configure = adiv5_jim_configure,
.init_target = cortex_m_init_target,
.examine = cortex_m_examine,
+ .deinit_target = cortex_m_deinit_target,
+
+ .profiling = cortex_m_profiling,
};
projects / openocd / blobdiff