* along with this program; if not, write to the *
* Free Software Foundation, Inc., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
+ * *
+ * *
+ * Cortex-M3(tm) TRM, ARM DDI 0337C *
+ * *
***************************************************************************/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
-#include "replacements.h"
-
#include "cortex_m3.h"
-#include "armv7m.h"
-
-#include "register.h"
-#include "target.h"
#include "target_request.h"
-#include "log.h"
-#include "jtag.h"
-#include "arm_jtag.h"
+#include "target_type.h"
-#include <stdlib.h>
-#include <string.h>
/* cli handling */
int cortex_m3_register_commands(struct command_context_s *cmd_ctx);
+int handle_cortex_m3_mask_interrupts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
/* forward declarations */
void cortex_m3_enable_breakpoints(struct target_s *target);
int cortex_m3_quit(void);
int cortex_m3_load_core_reg_u32(target_t *target, enum armv7m_regtype type, u32 num, u32 *value);
int cortex_m3_store_core_reg_u32(target_t *target, enum armv7m_regtype type, u32 num, u32 value);
-int cortex_m3_target_request_data(target_t *target, u32 size, u8 *buffer);
+int cortex_m3_target_request_data(target_t *target, u32 size, uint8_t *buffer);
int cortex_m3_examine(struct target_s *target);
#ifdef ARMV7_GDB_HACKS
-extern u8 armv7m_gdb_dummy_cpsr_value[];
+extern uint8_t armv7m_gdb_dummy_cpsr_value[];
extern reg_t armv7m_gdb_dummy_cpsr_reg;
#endif
.arch_state = armv7m_arch_state,
.target_request_data = cortex_m3_target_request_data,
-
+
.halt = cortex_m3_halt,
.resume = cortex_m3_resume,
.step = cortex_m3_step,
.assert_reset = cortex_m3_assert_reset,
.deassert_reset = cortex_m3_deassert_reset,
.soft_reset_halt = cortex_m3_soft_reset_halt,
-
+
.get_gdb_reg_list = armv7m_get_gdb_reg_list,
.read_memory = cortex_m3_read_memory,
.bulk_write_memory = cortex_m3_bulk_write_memory,
.checksum_memory = armv7m_checksum_memory,
.blank_check_memory = armv7m_blank_check_memory,
-
+
.run_algorithm = armv7m_run_algorithm,
-
+
.add_breakpoint = cortex_m3_add_breakpoint,
.remove_breakpoint = cortex_m3_remove_breakpoint,
.add_watchpoint = cortex_m3_add_watchpoint,
.quit = cortex_m3_quit
};
+int cortexm3_dap_read_coreregister_u32(swjdp_common_t *swjdp, u32 *value, int regnum)
+{
+ int retval;
+ u32 dcrdr;
+
+ /* because the DCB_DCRDR is used for the emulated dcc channel
+ * we gave to save/restore the DCB_DCRDR when used */
+
+ mem_ap_read_u32(swjdp, DCB_DCRDR, &dcrdr);
+
+ swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+
+ /* mem_ap_write_u32(swjdp, DCB_DCRSR, regnum); */
+ dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_OFF, DCB_DCRSR & 0xFFFFFFF0);
+ dap_ap_write_reg_u32(swjdp, AP_REG_BD0 | (DCB_DCRSR & 0xC), regnum );
+
+ /* mem_ap_read_u32(swjdp, DCB_DCRDR, value); */
+ dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_OFF, DCB_DCRDR & 0xFFFFFFF0);
+ dap_ap_read_reg_u32(swjdp, AP_REG_BD0 | (DCB_DCRDR & 0xC), value );
+
+ mem_ap_write_u32(swjdp, DCB_DCRDR, dcrdr);
+ retval = swjdp_transaction_endcheck(swjdp);
+ return retval;
+}
+
+int cortexm3_dap_write_coreregister_u32(swjdp_common_t *swjdp, u32 value, int regnum)
+{
+ int retval;
+ u32 dcrdr;
+
+ /* because the DCB_DCRDR is used for the emulated dcc channel
+ * we gave to save/restore the DCB_DCRDR when used */
+
+ mem_ap_read_u32(swjdp, DCB_DCRDR, &dcrdr);
+
+ swjdp->trans_mode = TRANS_MODE_COMPOSITE;
+
+ /* mem_ap_write_u32(swjdp, DCB_DCRDR, core_regs[i]); */
+ dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_OFF, DCB_DCRDR & 0xFFFFFFF0);
+ dap_ap_write_reg_u32(swjdp, AP_REG_BD0 | (DCB_DCRDR & 0xC), value );
+
+ /* mem_ap_write_u32(swjdp, DCB_DCRSR, i | DCRSR_WnR ); */
+ dap_setup_accessport(swjdp, CSW_32BIT | CSW_ADDRINC_OFF, DCB_DCRSR & 0xFFFFFFF0);
+ dap_ap_write_reg_u32(swjdp, AP_REG_BD0 | (DCB_DCRSR & 0xC), regnum | DCRSR_WnR );
+
+ mem_ap_write_u32(swjdp, DCB_DCRDR, dcrdr);
+ retval = swjdp_transaction_endcheck(swjdp);
+ return retval;
+}
+
+
+int cortex_m3_write_debug_halt_mask(target_t *target, u32 mask_on, u32 mask_off)
+{
+ /* get pointers to arch-specific information */
+ armv7m_common_t *armv7m = target->arch_info;
+ cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+
+ /* mask off status bits */
+ cortex_m3->dcb_dhcsr &= ~((0xFFFF << 16) | mask_off);
+ /* create new register mask */
+ cortex_m3->dcb_dhcsr |= DBGKEY | C_DEBUGEN | mask_on;
+
+ return mem_ap_write_atomic_u32(swjdp, DCB_DHCSR, cortex_m3->dcb_dhcsr);
+}
+
int cortex_m3_clear_halt(target_t *target)
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
-
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+
+ /* clear step if any */
+ cortex_m3_write_debug_halt_mask(target, C_HALT, C_STEP);
+
/* Read Debug Fault Status Register */
- ahbap_read_system_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
+ mem_ap_read_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
/* Write Debug Fault Status Register to enable processing to resume ?? Try with and without this !! */
- ahbap_write_system_atomic_u32(swjdp, NVIC_DFSR, cortex_m3->nvic_dfsr);
+ mem_ap_write_atomic_u32(swjdp, NVIC_DFSR, cortex_m3->nvic_dfsr);
LOG_DEBUG(" NVIC_DFSR 0x%x", cortex_m3->nvic_dfsr);
return ERROR_OK;
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ u32 dhcsr_save;
+
+ /* backup dhcsr reg */
+ dhcsr_save = cortex_m3->dcb_dhcsr;
+ /* mask interrupts if not done already */
if (!(cortex_m3->dcb_dhcsr & C_MASKINTS))
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_MASKINTS | C_HALT | C_DEBUGEN );
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_MASKINTS | C_STEP | C_DEBUGEN );
- cortex_m3->dcb_dhcsr |= C_MASKINTS;
+ mem_ap_write_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_MASKINTS | C_HALT | C_DEBUGEN);
+ mem_ap_write_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_MASKINTS | C_STEP | C_DEBUGEN);
LOG_DEBUG(" ");
+
+ /* restore dhcsr reg */
+ cortex_m3->dcb_dhcsr = dhcsr_save;
cortex_m3_clear_halt(target);
-
+
return ERROR_OK;
}
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
u32 savedram;
int retvalue;
-
- ahbap_read_system_u32(swjdp, 0x20000000, &savedram);
- ahbap_write_system_u32(swjdp, 0x20000000, opcode);
- ahbap_write_coreregister_u32(swjdp, 0x20000000, 15);
+
+ mem_ap_read_u32(swjdp, 0x20000000, &savedram);
+ mem_ap_write_u32(swjdp, 0x20000000, opcode);
+ cortexm3_dap_write_coreregister_u32(swjdp, 0x20000000, 15);
cortex_m3_single_step_core(target);
armv7m->core_cache->reg_list[15].dirty = armv7m->core_cache->reg_list[15].valid;
- retvalue = ahbap_write_system_atomic_u32(swjdp, 0x20000000, savedram);
-
+ retvalue = mem_ap_write_atomic_u32(swjdp, 0x20000000, savedram);
+
return retvalue;
}
{
int i;
u32 dcb_demcr;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
- cortex_m3_fp_comparator_t *fp_list = cortex_m3->fp_comparator_list;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ cortex_m3_fp_comparator_t *fp_list = cortex_m3->fp_comparator_list;
cortex_m3_dwt_comparator_t *dwt_list = cortex_m3->dwt_comparator_list;
- ahbap_read_system_atomic_u32(swjdp, DCB_DEMCR, &dcb_demcr);
+ mem_ap_read_atomic_u32(swjdp, DCB_DEMCR, &dcb_demcr);
LOG_DEBUG("DCB_DEMCR = 0x%8.8x",dcb_demcr);
-
- ahbap_write_system_u32(swjdp, DCB_DCRDR, 0 );
-
+
+ /* this regsiter is used for emulated dcc channel */
+ mem_ap_write_u32(swjdp, DCB_DCRDR, 0);
+
/* Enable debug requests */
- ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
if (!(cortex_m3->dcb_dhcsr & C_DEBUGEN))
- ahbap_write_system_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN );
+ mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN);
+
+ /* clear any interrupt masking */
+ cortex_m3_write_debug_halt_mask(target, 0, C_MASKINTS);
+
/* Enable trace and dwt */
- ahbap_write_system_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR );
+ mem_ap_write_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR);
/* Monitor bus faults */
- ahbap_write_system_u32(swjdp, NVIC_SHCSR, SHCSR_BUSFAULTENA );
+ mem_ap_write_u32(swjdp, NVIC_SHCSR, SHCSR_BUSFAULTENA);
/* Enable FPB */
target_write_u32(target, FP_CTRL, 3);
+ cortex_m3->fpb_enabled = 1;
/* Restore FPB registers */
for (i = 0; i < cortex_m3->fp_num_code + cortex_m3->fp_num_lit; i++)
{
target_write_u32(target, fp_list[i].fpcr_address, fp_list[i].fpcr_value);
}
-
+
/* Restore DWT registers */
for (i = 0; i < cortex_m3->dwt_num_comp; i++)
{
target_write_u32(target, dwt_list[i].dwt_comparator_address | 0x8, dwt_list[i].function);
}
swjdp_transaction_endcheck(swjdp);
-
+
armv7m_invalidate_core_regs(target);
+
+ /* make sure we have latest dhcsr flags */
+ mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+
return ERROR_OK;
}
/* THIS IS NOT GOOD, TODO - better logic for detection of debug state reason */
/* only check the debug reason if we don't know it already */
-
+
if ((target->debug_reason != DBG_REASON_DBGRQ)
&& (target->debug_reason != DBG_REASON_SINGLESTEP))
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
- ahbap_read_system_u32(swjdp, NVIC_SHCSR, &shcsr);
+ mem_ap_read_u32(swjdp, NVIC_SHCSR, &shcsr);
switch (armv7m->exception_number)
{
case 2: /* NMI */
break;
case 3: /* Hard Fault */
- ahbap_read_system_atomic_u32(swjdp, NVIC_HFSR, &except_sr);
+ mem_ap_read_atomic_u32(swjdp, NVIC_HFSR, &except_sr);
if (except_sr & 0x40000000)
{
- ahbap_read_system_u32(swjdp, NVIC_CFSR, &cfsr);
+ mem_ap_read_u32(swjdp, NVIC_CFSR, &cfsr);
}
break;
case 4: /* Memory Management */
- ahbap_read_system_u32(swjdp, NVIC_CFSR, &except_sr);
- ahbap_read_system_u32(swjdp, NVIC_MMFAR, &except_ar);
+ mem_ap_read_u32(swjdp, NVIC_CFSR, &except_sr);
+ mem_ap_read_u32(swjdp, NVIC_MMFAR, &except_ar);
break;
case 5: /* Bus Fault */
- ahbap_read_system_u32(swjdp, NVIC_CFSR, &except_sr);
- ahbap_read_system_u32(swjdp, NVIC_BFAR, &except_ar);
+ mem_ap_read_u32(swjdp, NVIC_CFSR, &except_sr);
+ mem_ap_read_u32(swjdp, NVIC_BFAR, &except_ar);
break;
case 6: /* Usage Fault */
- ahbap_read_system_u32(swjdp, NVIC_CFSR, &except_sr);
+ mem_ap_read_u32(swjdp, NVIC_CFSR, &except_sr);
break;
case 11: /* SVCall */
break;
case 12: /* Debug Monitor */
- ahbap_read_system_u32(swjdp, NVIC_DFSR, &except_sr);
+ mem_ap_read_u32(swjdp, NVIC_DFSR, &except_sr);
break;
case 14: /* PendSV */
break;
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
LOG_DEBUG(" ");
if (armv7m->pre_debug_entry)
armv7m->pre_debug_entry(target);
cortex_m3_clear_halt(target);
- ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
if ((retval = armv7m->examine_debug_reason(target)) != ERROR_OK)
return retval;
armv7m->core_mode = buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_CONTROL].value, 0, 1);
armv7m->exception_number = 0;
}
-
+
if (armv7m->exception_number)
{
cortex_m3_examine_exception_reason(target);
}
- LOG_DEBUG("entered debug state in core mode: %s at PC 0x%x, target->state: %s",
+ LOG_DEBUG("entered debug state in core mode: %s at PC 0x%x, target->state: %s",
armv7m_mode_strings[armv7m->core_mode],
- *(u32*)(armv7m->core_cache->reg_list[15].value),
+ *(u32*)(armv7m->core_cache->reg_list[15].value),
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name);
if (armv7m->post_debug_entry)
{
int retval;
enum target_state prev_target_state = target->state;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
/* Read from Debug Halting Control and Status Register */
- retval = ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
if (retval != ERROR_OK)
{
target->state = TARGET_UNKNOWN;
return retval;
}
-
+
if (cortex_m3->dcb_dhcsr & S_RESET_ST)
{
/* check if still in reset */
- ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
-
+ mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+
if (cortex_m3->dcb_dhcsr & S_RESET_ST)
{
target->state = TARGET_RESET;
return ERROR_OK;
}
}
-
+
if (target->state == TARGET_RESET)
{
/* Cannot switch context while running so endreset is called with target->state == TARGET_RESET */
target->state = TARGET_RUNNING;
prev_target_state = TARGET_RUNNING;
}
-
+
if (cortex_m3->dcb_dhcsr & S_HALT)
{
target->state = TARGET_HALTED;
{
if ((retval = cortex_m3_debug_entry(target)) != ERROR_OK)
return retval;
-
+
target_call_event_callbacks(target, TARGET_EVENT_HALTED);
}
if (prev_target_state == TARGET_DEBUG_RUNNING)
target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED);
}
}
-
+
/*
if (cortex_m3->dcb_dhcsr & S_SLEEP)
target->state = TARGET_SLEEP;
#if 0
/* Read Debug Fault Status Register, added to figure out the lockup when running flashtest.script */
- ahbap_read_system_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
- LOG_DEBUG("dcb_dhcsr 0x%x, nvic_dfsr 0x%x, target->state: %s", cortex_m3->dcb_dhcsr, cortex_m3->nvic_dfsr, Jim_Nvp_value2name( nvp_target_state, target->state )->name );
+ mem_ap_read_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
+ LOG_DEBUG("dcb_dhcsr 0x%x, nvic_dfsr 0x%x, target->state: %s", cortex_m3->dcb_dhcsr, cortex_m3->nvic_dfsr, Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
#endif
-
+
return ERROR_OK;
}
int cortex_m3_halt(target_t *target)
{
- /* get pointers to arch-specific information */
- armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
-
- LOG_DEBUG("target->state: %s",
- Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
-
+ LOG_DEBUG("target->state: %s",
+ Jim_Nvp_value2name_simple(nvp_target_state, target->state )->name);
+
if (target->state == TARGET_HALTED)
{
LOG_DEBUG("target was already halted");
return ERROR_OK;
}
-
+
if (target->state == TARGET_UNKNOWN)
{
LOG_WARNING("target was in unknown state when halt was requested");
}
-
- if (target->state == TARGET_RESET)
+
+ if (target->state == TARGET_RESET)
{
- if ((jtag_reset_config & RESET_SRST_PULLS_TRST) && jtag_srst)
+ if ((jtag_get_reset_config() & RESET_SRST_PULLS_TRST) && jtag_get_srst())
{
LOG_ERROR("can't request a halt while in reset if nSRST pulls nTRST");
return ERROR_TARGET_FAILURE;
* debug entry was already prepared in cortex_m3_prepare_reset_halt()
*/
target->debug_reason = DBG_REASON_DBGRQ;
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
}
/* Write to Debug Halting Control and Status Register */
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN | C_HALT );
+ cortex_m3_write_debug_halt_mask(target, C_HALT, 0);
target->debug_reason = DBG_REASON_DBGRQ;
-
+
return ERROR_OK;
}
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
u32 dcb_dhcsr = 0;
int retval, timeout = 0;
/* Enter debug state on reset, cf. end_reset_event() */
- ahbap_write_system_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET );
-
- /* Request a reset */
- ahbap_write_system_atomic_u32(swjdp, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_VECTRESET );
+ mem_ap_write_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET);
+
+ /* Request a reset */
+ mem_ap_write_atomic_u32(swjdp, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_VECTRESET);
target->state = TARGET_RESET;
/* registers are now invalid */
while (timeout < 100)
{
- retval = ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &dcb_dhcsr);
+ retval = mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &dcb_dhcsr);
if (retval == ERROR_OK)
{
- ahbap_read_system_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
+ mem_ap_read_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
if ((dcb_dhcsr & S_HALT) && (cortex_m3->nvic_dfsr & DFSR_VCATCH))
{
LOG_DEBUG("system reset-halted, dcb_dhcsr 0x%x, nvic_dfsr 0x%x", dcb_dhcsr, cortex_m3->nvic_dfsr);
timeout++;
alive_sleep(1);
}
-
+
return ERROR_OK;
}
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
breakpoint_t *breakpoint = NULL;
- u32 dcb_dhcsr, resume_pc;
-
+ u32 resume_pc;
+
if (target->state != TARGET_HALTED)
{
LOG_WARNING("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
+
if (!debug_execution)
{
target_free_all_working_areas(target);
cortex_m3_enable_breakpoints(target);
cortex_m3_enable_watchpoints(target);
-
- /* TODOLATER Interrupt handling/disable for debug execution, cache ... ... */
}
-
- dcb_dhcsr = DBGKEY | C_DEBUGEN;
+
if (debug_execution)
{
/* Disable interrupts */
/* We disable interrupts in the PRIMASK register instead of masking with C_MASKINTS,
- * This is probably the same inssue as Cortex-M3 Errata 377493:
+ * This is probably the same issue as Cortex-M3 Errata 377493:
* C_MASKINTS in parallel with disabled interrupts can cause local faults to not be taken. */
buf_set_u32(armv7m->core_cache->reg_list[ARMV7M_PRIMASK].value, 0, 32, 1);
armv7m->core_cache->reg_list[ARMV7M_PRIMASK].dirty = 1;
armv7m->core_cache->reg_list[ARMV7M_PRIMASK].valid = 1;
/* Make sure we are in Thumb mode */
- buf_set_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32,
+ buf_set_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32,
buf_get_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32) | (1<<24));
armv7m->core_cache->reg_list[ARMV7M_xPSR].dirty = 1;
armv7m->core_cache->reg_list[ARMV7M_xPSR].valid = 1;
}
/* current = 1: continue on current pc, otherwise continue at <address> */
- if (!current)
+ if (!current)
{
buf_set_u32(armv7m->core_cache->reg_list[15].value, 0, 32, address);
armv7m->core_cache->reg_list[15].dirty = 1;
armv7m->core_cache->reg_list[15].valid = 1;
}
-
+
resume_pc = buf_get_u32(armv7m->core_cache->reg_list[15].value, 0, 32);
armv7m_restore_context(target);
-
+
/* the front-end may request us not to handle breakpoints */
if (handle_breakpoints)
{
}
}
- /* Set/Clear C_MASKINTS in a separate operation */
- if ((cortex_m3->dcb_dhcsr & C_MASKINTS) != (dcb_dhcsr & C_MASKINTS))
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, dcb_dhcsr | C_HALT );
-
/* Restart core */
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, dcb_dhcsr );
+ cortex_m3_write_debug_halt_mask(target, 0, C_HALT);
+
target->debug_reason = DBG_REASON_NOTHALTED;
/* registers are now invalid */
{
target->state = TARGET_RUNNING;
target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
- LOG_DEBUG("target resumed at 0x%x",resume_pc);
+ LOG_DEBUG("target resumed at 0x%x", resume_pc);
}
else
{
target->state = TARGET_DEBUG_RUNNING;
target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED);
- LOG_DEBUG("target debug resumed at 0x%x",resume_pc);
+ LOG_DEBUG("target debug resumed at 0x%x", resume_pc);
}
-
+
return ERROR_OK;
}
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
breakpoint_t *breakpoint = NULL;
if (target->state != TARGET_HALTED)
/* current = 1: continue on current pc, otherwise continue at <address> */
if (!current)
buf_set_u32(armv7m->core_cache->reg_list[15].value, 0, 32, address);
-
+
/* the front-end may request us not to handle breakpoints */
if (handle_breakpoints)
if ((breakpoint = breakpoint_find(target, buf_get_u32(armv7m->core_cache->reg_list[15].value, 0, 32))))
cortex_m3_unset_breakpoint(target, breakpoint);
-
+
target->debug_reason = DBG_REASON_SINGLESTEP;
-
+
armv7m_restore_context(target);
-
+
target_call_event_callbacks(target, TARGET_EVENT_RESUMED);
-
- if (cortex_m3->dcb_dhcsr & C_MASKINTS)
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_HALT | C_DEBUGEN );
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, DBGKEY| C_STEP | C_DEBUGEN);
- ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+
+ /* set step and clear halt */
+ cortex_m3_write_debug_halt_mask(target, C_STEP, C_HALT);
+ mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
/* registers are now invalid */
armv7m_invalidate_core_regs(target);
-
+
if (breakpoint)
cortex_m3_set_breakpoint(target, breakpoint);
{
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
int assert_srst = 1;
-
- LOG_DEBUG("target->state: %s",
+
+ LOG_DEBUG("target->state: %s",
Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
-
+
+ enum reset_types jtag_reset_config = jtag_get_reset_config();
if (!(jtag_reset_config & RESET_HAS_SRST))
{
LOG_ERROR("Can't assert SRST");
return ERROR_FAIL;
}
-
+
/* Enable debug requests */
- ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
+ mem_ap_read_atomic_u32(swjdp, DCB_DHCSR, &cortex_m3->dcb_dhcsr);
if (!(cortex_m3->dcb_dhcsr & C_DEBUGEN))
- ahbap_write_system_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN );
-
- ahbap_write_system_u32(swjdp, DCB_DCRDR, 0 );
-
+ mem_ap_write_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN);
+
+ mem_ap_write_u32(swjdp, DCB_DCRDR, 0 );
+
if (!target->reset_halt)
{
/* Set/Clear C_MASKINTS in a separate operation */
if (cortex_m3->dcb_dhcsr & C_MASKINTS)
- ahbap_write_system_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN | C_HALT );
-
+ mem_ap_write_atomic_u32(swjdp, DCB_DHCSR, DBGKEY | C_DEBUGEN | C_HALT);
+
+ /* clear any debug flags before resuming */
cortex_m3_clear_halt(target);
-
- /* Enter debug state on reset, cf. end_reset_event() */
- ahbap_write_system_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR);
+
+ /* clear C_HALT in dhcsr reg */
+ cortex_m3_write_debug_halt_mask(target, 0, C_HALT);
+
+ /* Enter debug state on reset, cf. end_reset_event() */
+ mem_ap_write_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR);
}
else
{
/* Enter debug state on reset, cf. end_reset_event() */
- ahbap_write_system_atomic_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET );
+ mem_ap_write_atomic_u32(swjdp, DCB_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET);
}
-
+
/* following hack is to handle luminary reset
* when srst is asserted the luminary device seesm to also clear the debug registers
* which does not match the armv7 debug TRM */
-
- if (strcmp(cortex_m3->variant, "lm3s") == 0)
+
+ if (strcmp(target->variant, "lm3s") == 0)
{
/* get revision of lm3s target, only early silicon has this issue
* Fury Rev B, DustDevil Rev B, Tempest all ok */
-
+
u32 did0;
-
+
if (target_read_u32(target, 0x400fe000, &did0) == ERROR_OK)
{
switch ((did0 >> 16) & 0xff)
/* all Sandstorm suffer issue */
assert_srst = 0;
break;
-
+
case 1:
case 3:
/* only Fury/DustDevil rev A suffer reset problems */
}
}
}
-
+
if (assert_srst)
{
/* default to asserting srst */
else
{
/* this causes the luminary device to reset using the watchdog */
- ahbap_write_system_atomic_u32(swjdp, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_SYSRESETREQ );
+ mem_ap_write_atomic_u32(swjdp, NVIC_AIRCR, AIRCR_VECTKEY | AIRCR_SYSRESETREQ);
LOG_DEBUG("Using Luminary Reset: SYSRESETREQ");
{
/* I do not know why this is necessary, but it fixes strange effects
* (step/resume cause a NMI after reset) on LM3S6918 -- Michael Schwingen */
u32 tmp;
- ahbap_read_system_atomic_u32(swjdp, NVIC_AIRCR, &tmp );
+ mem_ap_read_atomic_u32(swjdp, NVIC_AIRCR, &tmp);
}
}
-
+
target->state = TARGET_RESET;
jtag_add_sleep(50000);
-
+
armv7m_invalidate_core_regs(target);
if (target->reset_halt)
if ((retval = target_halt(target))!=ERROR_OK)
return retval;
}
-
+
return ERROR_OK;
}
int cortex_m3_deassert_reset(target_t *target)
-{
- LOG_DEBUG("target->state: %s",
- Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name);
-
+{
+ LOG_DEBUG("target->state: %s",
+ Jim_Nvp_value2name_simple(nvp_target_state, target->state )->name);
+
/* deassert reset lines */
jtag_add_reset(0, 0);
-
+
return ERROR_OK;
}
void cortex_m3_enable_breakpoints(struct target_s *target)
{
breakpoint_t *breakpoint = target->breakpoints;
-
+
/* set any pending breakpoints */
while (breakpoint)
{
int retval;
int fp_num=0;
u32 hilo;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
-
+
cortex_m3_fp_comparator_t * comparator_list = cortex_m3->fp_comparator_list;
if (breakpoint->set)
LOG_WARNING("breakpoint already set");
return ERROR_OK;
}
-
+
if (cortex_m3->auto_bp_type)
{
breakpoint->type = (breakpoint->address < 0x20000000) ? BKPT_HARD : BKPT_SOFT;
comparator_list[fp_num].fpcr_value = (breakpoint->address & 0x1FFFFFFC) | hilo | 1;
target_write_u32(target, comparator_list[fp_num].fpcr_address, comparator_list[fp_num].fpcr_value);
LOG_DEBUG("fpc_num %i fpcr_value 0x%x", fp_num, comparator_list[fp_num].fpcr_value);
+ if (!cortex_m3->fpb_enabled)
+ {
+ LOG_DEBUG("FPB wasn't enabled, do it now");
+ target_write_u32(target, FP_CTRL, 3);
+ }
}
else if (breakpoint->type == BKPT_SOFT)
{
- u8 code[4];
+ uint8_t code[4];
buf_set_u32(code, 0, 32, ARMV7M_T_BKPT(0x11));
- if((retval = target->type->read_memory(target, breakpoint->address & 0xFFFFFFFE, breakpoint->length, 1, breakpoint->orig_instr)) != ERROR_OK)
+ if((retval = target_read_memory(target, breakpoint->address & 0xFFFFFFFE, breakpoint->length, 1, breakpoint->orig_instr)) != ERROR_OK)
{
return retval;
}
- if((retval = target->type->write_memory(target, breakpoint->address & 0xFFFFFFFE, breakpoint->length, 1, code)) != ERROR_OK)
+ if((retval = target_write_memory(target, breakpoint->address & 0xFFFFFFFE, breakpoint->length, 1, code)) != ERROR_OK)
{
return retval;
}
LOG_WARNING("breakpoint not set");
return ERROR_OK;
}
-
+
if (breakpoint->type == BKPT_HARD)
{
int fp_num = breakpoint->set - 1;
/* restore original instruction (kept in target endianness) */
if (breakpoint->length == 4)
{
- if((retval = target->type->write_memory(target, breakpoint->address & 0xFFFFFFFE, 4, 1, breakpoint->orig_instr)) != ERROR_OK)
+ if((retval = target_write_memory(target, breakpoint->address & 0xFFFFFFFE, 4, 1, breakpoint->orig_instr)) != ERROR_OK)
{
return retval;
}
}
else
{
- if((retval = target->type->write_memory(target, breakpoint->address & 0xFFFFFFFE, 2, 1, breakpoint->orig_instr)) != ERROR_OK)
+ if((retval = target_write_memory(target, breakpoint->address & 0xFFFFFFFE, 2, 1, breakpoint->orig_instr)) != ERROR_OK)
{
return retval;
}
#ifdef ARMV7_GDB_HACKS
if (breakpoint->length != 2) {
/* XXX Hack: Replace all breakpoints with length != 2 with
- * a hardware breakpoint. */
+ * a hardware breakpoint. */
breakpoint->type = BKPT_HARD;
breakpoint->length = 2;
}
LOG_INFO("only breakpoints of two bytes length supported");
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
-
+
if (breakpoint->type == BKPT_HARD)
cortex_m3->fp_code_available--;
cortex_m3_set_breakpoint(target, breakpoint);
-
+
return ERROR_OK;
}
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
-
+
if (target->state != TARGET_HALTED)
{
LOG_WARNING("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
+
if (cortex_m3->auto_bp_type)
{
breakpoint->type = (breakpoint->address < 0x20000000) ? BKPT_HARD : BKPT_SOFT;
{
cortex_m3_unset_breakpoint(target, breakpoint);
}
-
+
if (breakpoint->type == BKPT_HARD)
cortex_m3->fp_code_available++;
-
+
return ERROR_OK;
}
{
int dwt_num=0;
u32 mask, temp;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
cortex_m3_dwt_comparator_t * comparator_list = cortex_m3->dwt_comparator_list;
int dwt_num;
-
+
if (!watchpoint->set)
{
LOG_WARNING("watchpoint not set");
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
-
+
if (target->state != TARGET_HALTED)
{
LOG_WARNING("target not halted");
{
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
-
+
if ((watchpoint->length != 1) && (watchpoint->length != 2) && (watchpoint->length != 4))
{
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
-
+
cortex_m3->dwt_comp_available--;
-
+
return ERROR_OK;
}
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
-
+
if (target->state != TARGET_HALTED)
{
LOG_WARNING("target not halted");
return ERROR_TARGET_NOT_HALTED;
}
-
+
if (watchpoint->set)
{
cortex_m3_unset_watchpoint(target, watchpoint);
}
-
+
cortex_m3->dwt_comp_available++;
-
+
return ERROR_OK;
}
void cortex_m3_enable_watchpoints(struct target_s *target)
{
watchpoint_t *watchpoint = target->watchpoints;
-
+
/* set any pending watchpoints */
while (watchpoint)
{
int retval;
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
-
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+
if ((type == ARMV7M_REGISTER_CORE_GP) && (num <= ARMV7M_PSP))
{
/* read a normal core register */
- retval = ahbap_read_coreregister_u32(swjdp, value, num);
-
+ retval = cortexm3_dap_read_coreregister_u32(swjdp, value, num);
+
if (retval != ERROR_OK)
{
LOG_ERROR("JTAG failure %i",retval);
else if (type == ARMV7M_REGISTER_CORE_SP) /* Special purpose core register */
{
/* read other registers */
- ahbap_read_coreregister_u32(swjdp, value, 20);
-
+ cortexm3_dap_read_coreregister_u32(swjdp, value, 20);
+
switch (num)
{
case 19:
- *value = buf_get_u32((u8*)value, 0, 8);
+ *value = buf_get_u32((uint8_t*)value, 0, 8);
break;
-
+
case 20:
- *value = buf_get_u32((u8*)value, 8, 8);
+ *value = buf_get_u32((uint8_t*)value, 8, 8);
break;
-
+
case 21:
- *value = buf_get_u32((u8*)value, 16, 8);
+ *value = buf_get_u32((uint8_t*)value, 16, 8);
break;
-
+
case 22:
- *value = buf_get_u32((u8*)value, 24, 8);
+ *value = buf_get_u32((uint8_t*)value, 24, 8);
break;
}
-
+
LOG_DEBUG("load from special reg %i value 0x%x", num, *value);
}
else
{
return ERROR_INVALID_ARGUMENTS;
}
-
+
return ERROR_OK;
}
{
int retval;
u32 reg;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
#ifdef ARMV7_GDB_HACKS
/* If the LR register is being modified, make sure it will put us
* hack to deal with the fact that gdb will sometimes "forge"
* return addresses, and doesn't set the LSB correctly (i.e., when
* printing expressions containing function calls, it sets LR=0.) */
-
+
if (num == 14)
value |= 0x01;
#endif
-
+
if ((type == ARMV7M_REGISTER_CORE_GP) && (num <= ARMV7M_PSP))
{
- retval = ahbap_write_coreregister_u32(swjdp, value, num);
+ retval = cortexm3_dap_write_coreregister_u32(swjdp, value, num);
if (retval != ERROR_OK)
{
LOG_ERROR("JTAG failure %i", retval);
else if (type == ARMV7M_REGISTER_CORE_SP) /* Special purpose core register */
{
/* write other registers */
-
- ahbap_read_coreregister_u32(swjdp, ®, 20);
-
+
+ cortexm3_dap_read_coreregister_u32(swjdp, ®, 20);
+
switch (num)
{
case 19:
- buf_set_u32((u8*)®, 0, 8, value);
+ buf_set_u32((uint8_t*)®, 0, 8, value);
break;
-
+
case 20:
- buf_set_u32((u8*)®, 8, 8, value);
+ buf_set_u32((uint8_t*)®, 8, 8, value);
break;
-
+
case 21:
- buf_set_u32((u8*)®, 16, 8, value);
+ buf_set_u32((uint8_t*)®, 16, 8, value);
break;
-
+
case 22:
- buf_set_u32((u8*)®, 24, 8, value);
+ buf_set_u32((uint8_t*)®, 24, 8, value);
break;
}
-
- ahbap_write_coreregister_u32(swjdp, reg, 20);
-
+
+ cortexm3_dap_write_coreregister_u32(swjdp, reg, 20);
+
LOG_DEBUG("write special reg %i value 0x%x ", num, value);
}
else
{
return ERROR_INVALID_ARGUMENTS;
}
-
- return ERROR_OK;
+
+ return ERROR_OK;
}
-int cortex_m3_read_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
+int cortex_m3_read_memory(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer)
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
int retval;
-
+
/* sanitize arguments */
if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer))
return ERROR_INVALID_ARGUMENTS;
-
+
/* cortex_m3 handles unaligned memory access */
-
+
switch (size)
{
case 4:
- retval = ahbap_read_buf_u32(swjdp, buffer, 4 * count, address);
+ retval = mem_ap_read_buf_u32(swjdp, buffer, 4 * count, address);
break;
case 2:
- retval = ahbap_read_buf_u16(swjdp, buffer, 2 * count, address);
+ retval = mem_ap_read_buf_u16(swjdp, buffer, 2 * count, address);
break;
case 1:
- retval = ahbap_read_buf_u8(swjdp, buffer, count, address);
+ retval = mem_ap_read_buf_u8(swjdp, buffer, count, address);
break;
default:
LOG_ERROR("BUG: we shouldn't get here");
exit(-1);
}
-
+
return retval;
}
-int cortex_m3_write_memory(struct target_s *target, u32 address, u32 size, u32 count, u8 *buffer)
+int cortex_m3_write_memory(struct target_s *target, u32 address, u32 size, u32 count, uint8_t *buffer)
{
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
int retval;
-
+
/* sanitize arguments */
if (((size != 4) && (size != 2) && (size != 1)) || (count == 0) || !(buffer))
return ERROR_INVALID_ARGUMENTS;
-
+
switch (size)
{
case 4:
- retval = ahbap_write_buf_u32(swjdp, buffer, 4 * count, address);
+ retval = mem_ap_write_buf_u32(swjdp, buffer, 4 * count, address);
break;
case 2:
- retval = ahbap_write_buf_u16(swjdp, buffer, 2 * count, address);
+ retval = mem_ap_write_buf_u16(swjdp, buffer, 2 * count, address);
break;
case 1:
- retval = ahbap_write_buf_u8(swjdp, buffer, count, address);
+ retval = mem_ap_write_buf_u8(swjdp, buffer, count, address);
break;
default:
LOG_ERROR("BUG: we shouldn't get here");
exit(-1);
}
-
+
return retval;
}
-int cortex_m3_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffer)
+int cortex_m3_bulk_write_memory(target_t *target, u32 address, u32 count, uint8_t *buffer)
{
return cortex_m3_write_memory(target, address, 4, count, buffer);
}
int retval;
u32 cpuid, fpcr, dwtcr, ictr;
int i;
-
+
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
-
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+
if ((retval = ahbap_debugport_init(swjdp)) != ERROR_OK)
return retval;
-
- if (!target->type->examined)
+
+ if (!target_was_examined(target))
{
- target->type->examined = 1;
-
+ target_set_examined(target);
+
/* Read from Device Identification Registers */
if ((retval = target_read_u32(target, CPUID, &cpuid)) != ERROR_OK)
return retval;
-
+
if (((cpuid >> 4) & 0xc3f) == 0xc23)
LOG_DEBUG("CORTEX-M3 processor detected");
LOG_DEBUG("cpuid: 0x%8.8x", cpuid);
-
+
target_read_u32(target, NVIC_ICTR, &ictr);
cortex_m3->intlinesnum = (ictr & 0x1F) + 1;
cortex_m3->intsetenable = calloc(cortex_m3->intlinesnum, 4);
target_read_u32(target, NVIC_ISE0 + 4 * i, cortex_m3->intsetenable + i);
LOG_DEBUG("interrupt enable[%i] = 0x%8.8x", i, cortex_m3->intsetenable[i]);
}
-
+
/* Setup FPB */
target_read_u32(target, FP_CTRL, &fpcr);
cortex_m3->auto_bp_type = 1;
- cortex_m3->fp_num_code = (fpcr >> 4) & 0xF;
+ cortex_m3->fp_num_code = ((fpcr >> 8) & 0x70) | ((fpcr >> 4) & 0xF); /* bits [14:12] and [7:4] */
cortex_m3->fp_num_lit = (fpcr >> 8) & 0xF;
cortex_m3->fp_code_available = cortex_m3->fp_num_code;
cortex_m3->fp_comparator_list = calloc(cortex_m3->fp_num_code + cortex_m3->fp_num_lit, sizeof(cortex_m3_fp_comparator_t));
+ cortex_m3->fpb_enabled = fpcr & 1;
for (i = 0; i < cortex_m3->fp_num_code + cortex_m3->fp_num_lit; i++)
{
cortex_m3->fp_comparator_list[i].type = (i < cortex_m3->fp_num_code) ? FPCR_CODE : FPCR_LITERAL;
cortex_m3->fp_comparator_list[i].fpcr_address = FP_COMP0 + 4 * i;
}
LOG_DEBUG("FPB fpcr 0x%x, numcode %i, numlit %i", fpcr, cortex_m3->fp_num_code, cortex_m3->fp_num_lit);
-
+
/* Setup DWT */
target_read_u32(target, DWT_CTRL, &dwtcr);
cortex_m3->dwt_num_comp = (dwtcr >> 28) & 0xF;
cortex_m3->dwt_comparator_list[i].dwt_comparator_address = DWT_COMP0 + 0x10 * i;
}
}
-
+
return ERROR_OK;
}
int cortex_m3_quit(void)
{
-
+
return ERROR_OK;
}
-int cortex_m3_dcc_read(swjdp_common_t *swjdp, u8 *value, u8 *ctrl)
+int cortex_m3_dcc_read(swjdp_common_t *swjdp, uint8_t *value, uint8_t *ctrl)
{
u16 dcrdr;
-
- ahbap_read_buf_u16( swjdp, (u8*)&dcrdr, 1, DCB_DCRDR);
- *ctrl = (u8)dcrdr;
- *value = (u8)(dcrdr >> 8);
-
+
+ mem_ap_read_buf_u16( swjdp, (uint8_t*)&dcrdr, 1, DCB_DCRDR);
+ *ctrl = (uint8_t)dcrdr;
+ *value = (uint8_t)(dcrdr >> 8);
+
LOG_DEBUG("data 0x%x ctrl 0x%x", *value, *ctrl);
-
+
/* write ack back to software dcc register
* signify we have read data */
if (dcrdr & (1 << 0))
{
dcrdr = 0;
- ahbap_write_buf_u16( swjdp, (u8*)&dcrdr, 1, DCB_DCRDR);
+ mem_ap_write_buf_u16( swjdp, (uint8_t*)&dcrdr, 1, DCB_DCRDR);
}
-
+
return ERROR_OK;
}
-int cortex_m3_target_request_data(target_t *target, u32 size, u8 *buffer)
+int cortex_m3_target_request_data(target_t *target, u32 size, uint8_t *buffer)
{
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
- u8 data;
- u8 ctrl;
- int i;
-
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+ uint8_t data;
+ uint8_t ctrl;
+ u32 i;
+
for (i = 0; i < (size * 4); i++)
{
cortex_m3_dcc_read(swjdp, &data, &ctrl);
buffer[i] = data;
}
-
+
return ERROR_OK;
}
int cortex_m3_handle_target_request(void *priv)
{
target_t *target = priv;
- if (!target->type->examined)
+ if (!target_was_examined(target))
return ERROR_OK;
armv7m_common_t *armv7m = target->arch_info;
- cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
- swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
-
+ swjdp_common_t *swjdp = &armv7m->swjdp_info;
+
if (!target->dbg_msg_enabled)
return ERROR_OK;
-
+
if (target->state == TARGET_RUNNING)
{
- u8 data;
- u8 ctrl;
-
+ uint8_t data;
+ uint8_t ctrl;
+
cortex_m3_dcc_read(swjdp, &data, &ctrl);
-
+
/* check if we have data */
if (ctrl & (1 << 0))
{
u32 request;
-
+
/* we assume target is quick enough */
request = data;
cortex_m3_dcc_read(swjdp, &data, &ctrl);
target_request(target, request);
}
}
-
+
return ERROR_OK;
}
-int cortex_m3_init_arch_info(target_t *target, cortex_m3_common_t *cortex_m3, int chain_pos, const char *variant)
+int cortex_m3_init_arch_info(target_t *target, cortex_m3_common_t *cortex_m3, jtag_tap_t *tap)
{
+ int retval;
armv7m_common_t *armv7m;
armv7m = &cortex_m3->armv7m;
+ armv7m_init_arch_info(target, armv7m);
+
/* prepare JTAG information for the new target */
- cortex_m3->jtag_info.chain_pos = chain_pos;
+ cortex_m3->jtag_info.tap = tap;
cortex_m3->jtag_info.scann_size = 4;
-
- cortex_m3->swjdp_info.dp_select_value = -1;
- cortex_m3->swjdp_info.ap_csw_value = -1;
- cortex_m3->swjdp_info.ap_tar_value = -1;
- cortex_m3->swjdp_info.jtag_info = &cortex_m3->jtag_info;
+
+ armv7m->swjdp_info.dp_select_value = -1;
+ armv7m->swjdp_info.ap_csw_value = -1;
+ armv7m->swjdp_info.ap_tar_value = -1;
+ armv7m->swjdp_info.jtag_info = &cortex_m3->jtag_info;
+ armv7m->swjdp_info.memaccess_tck = 8;
+ armv7m->swjdp_info.tar_autoincr_block = (1<<12); /* Cortex-M3 has 4096 bytes autoincrement range */
/* initialize arch-specific breakpoint handling */
-
+
cortex_m3->common_magic = CORTEX_M3_COMMON_MAGIC;
cortex_m3->arch_info = NULL;
armv7m->pre_debug_entry = NULL;
armv7m->post_debug_entry = NULL;
-
+
armv7m->pre_restore_context = NULL;
armv7m->post_restore_context = NULL;
-
- if (variant)
- {
- cortex_m3->variant = strdup(variant);
- }
- else
- {
- cortex_m3->variant = strdup("");
- }
-
- armv7m_init_arch_info(target, armv7m);
+
armv7m->arch_info = cortex_m3;
armv7m->load_core_reg_u32 = cortex_m3_load_core_reg_u32;
armv7m->store_core_reg_u32 = cortex_m3_store_core_reg_u32;
-
+
target_register_timer_callback(cortex_m3_handle_target_request, 1, 1, target);
-
+
+ if ((retval = arm_jtag_setup_connection(&cortex_m3->jtag_info)) != ERROR_OK)
+ {
+ return retval;
+ }
+
return ERROR_OK;
}
int cortex_m3_target_create(struct target_s *target, Jim_Interp *interp)
{
cortex_m3_common_t *cortex_m3 = calloc(1,sizeof(cortex_m3_common_t));
-
- cortex_m3_init_arch_info(target, cortex_m3, target->chain_position, target->variant);
-
+
+ cortex_m3_init_arch_info(target, cortex_m3, target->tap);
+
return ERROR_OK;
}
int cortex_m3_register_commands(struct command_context_s *cmd_ctx)
{
int retval;
-
+ command_t *cortex_m3_cmd;
+
retval = armv7m_register_commands(cmd_ctx);
-
+
+ cortex_m3_cmd = register_command(cmd_ctx, NULL, "cortex_m3", NULL, COMMAND_ANY, "cortex_m3 specific commands");
+ register_command(cmd_ctx, cortex_m3_cmd, "maskisr", handle_cortex_m3_mask_interrupts_command, COMMAND_EXEC, "mask cortex_m3 interrupts ['on'|'off']");
+
return retval;
}
+
+int handle_cortex_m3_mask_interrupts_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+{
+ target_t *target = get_current_target(cmd_ctx);
+ armv7m_common_t *armv7m = target->arch_info;
+ cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
+
+ if (target->state != TARGET_HALTED)
+ {
+ command_print(cmd_ctx, "target must be stopped for \"%s\" command", cmd);
+ return ERROR_OK;
+ }
+
+ if (argc > 0)
+ {
+ if (!strcmp(args[0], "on"))
+ {
+ cortex_m3_write_debug_halt_mask(target, C_HALT|C_MASKINTS, 0);
+ }
+ else if (!strcmp(args[0], "off"))
+ {
+ cortex_m3_write_debug_halt_mask(target, C_HALT, C_MASKINTS);
+ }
+ else
+ {
+ command_print(cmd_ctx, "usage: cortex_m3 maskisr ['on'|'off']");
+ }
+ }
+
+ command_print(cmd_ctx, "cortex_m3 interrupt mask %s",
+ (cortex_m3->dcb_dhcsr & C_MASKINTS) ? "on" : "off");
+
+ return ERROR_OK;
+}
Code Review / openocd.git / blobdiff