* Copyright (C) 2006 by Magnus Lundin *
* lundin@mlu.mine.nu *
* *
+ * Copyright (C) 2008 by Spencer Oliver *
+ * spen@spen-soft.co.uk *
+ * *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
/* forward declarations */
void cortex_m3_enable_breakpoints(struct target_s *target);
void cortex_m3_enable_watchpoints(struct target_s *target);
-int cortex_m3_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target);
+int cortex_m3_target_create(struct target_s *target, Jim_Interp *interp);
int cortex_m3_init_target(struct command_context_s *cmd_ctx, struct target_s *target);
-int cortex_m3_quit();
+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_examine(struct command_context_s *cmd_ctx, struct target_s *target);
+int cortex_m3_examine(struct target_s *target);
#ifdef ARMV7_GDB_HACKS
extern u8 armv7m_gdb_dummy_cpsr_value[];
.write_memory = cortex_m3_write_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,
.remove_watchpoint = cortex_m3_remove_watchpoint,
.register_commands = cortex_m3_register_commands,
- .target_command = cortex_m3_target_command,
+ .target_create = cortex_m3_target_create,
.init_target = cortex_m3_init_target,
.examine = cortex_m3_examine,
.quit = cortex_m3_quit
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
-
- /* Read Debug Fault Status Register */
- ahbap_read_system_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);
- LOG_DEBUG(" NVIC_DFSR 0x%x", cortex_m3->nvic_dfsr);
-
- return ERROR_OK;
+
+ /* Read Debug Fault Status Register */
+ ahbap_read_system_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);
+ LOG_DEBUG(" NVIC_DFSR 0x%x", cortex_m3->nvic_dfsr);
+
+ return ERROR_OK;
}
int cortex_m3_single_step_core(target_t *target)
break;
}
swjdp_transaction_endcheck(swjdp);
- LOG_DEBUG("%s SHCSR 0x%x, SR 0x%x, CFSR 0x%x, AR 0x%x", armv7m_exception_string(armv7m->exception_number), \
- shcsr, except_sr, cfsr, except_ar);
+ LOG_DEBUG("%s SHCSR 0x%x, SR 0x%x, CFSR 0x%x, AR 0x%x", armv7m_exception_string(armv7m->exception_number), \
+ shcsr, except_sr, cfsr, except_ar);
return ERROR_OK;
}
cortex_m3_examine_exception_reason(target);
}
- 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), target_state_strings[target->state]);
+ 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),
+ Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name);
if (armv7m->post_debug_entry)
armv7m->post_debug_entry(target);
int cortex_m3_poll(target_t *target)
{
int retval;
- u32 prev_target_state = target->state;
+ enum target_state prev_target_state = target->state;
/* get pointers to arch-specific information */
armv7m_common_t *armv7m = target->arch_info;
*/
#if 0
- /* Read Debug Fault Status Register, added to figure out the lockup when running flashtest.script */
+ /* 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, target_state_strings[target->state]);
+ 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 );
#endif
return ERROR_OK;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
- LOG_DEBUG("target->state: %s", target_state_strings[target->state]);
+ LOG_DEBUG("target->state: %s",
+ Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
if (target->state == TARGET_HALTED)
{
retval = ahbap_read_system_atomic_u32(swjdp, DCB_DHCSR, &dcb_dhcsr);
if (retval == ERROR_OK)
{
- ahbap_read_system_atomic_u32(swjdp, NVIC_DFSR, &cortex_m3->nvic_dfsr);
+ ahbap_read_system_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);
LOG_DEBUG("waiting for system reset-halt, dcb_dhcsr 0x%x, %i ms", dcb_dhcsr, timeout);
}
timeout++;
- usleep(1000);
+ alive_sleep(1);
}
return ERROR_OK;
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:
- C_MASKINTS in parallel with disabled interrupts can cause local faults to not be taken.
- */
+ /* We disable interrupts in the PRIMASK register instead of masking with C_MASKINTS,
+ * This is probably the same inssue 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);
/* Make sure we are in Thumb mode */
buf_set_u32(armv7m->core_cache->reg_list[ARMV7M_xPSR].value, 0, 32,
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);
armv7m_common_t *armv7m = target->arch_info;
cortex_m3_common_t *cortex_m3 = armv7m->arch_info;
swjdp_common_t *swjdp = &cortex_m3->swjdp_info;
+ int assert_srst = 1;
- LOG_DEBUG("target->state: %s", target_state_strings[target->state]);
+ LOG_DEBUG("target->state: %s",
+ Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name );
if (!(jtag_reset_config & RESET_HAS_SRST))
{
ahbap_write_system_u32(swjdp, DCB_DCRDR, 0 );
- if (target->reset_mode == RESET_RUN)
+ 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_DEMCR, TRCENA | VC_HARDERR | VC_BUSERR | VC_CORERESET );
}
- if (jtag_reset_config & RESET_SRST_PULLS_TRST)
+ /* 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)
{
- jtag_add_reset(1, 1);
+ /* 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)
+ {
+ case 0:
+ /* all Sandstorm suffer issue */
+ assert_srst = 0;
+ break;
+
+ case 1:
+ case 3:
+ /* only Fury/DustDevil rev A suffer reset problems */
+ if (((did0 >> 8) & 0xff) == 0)
+ assert_srst = 0;
+ break;
+ }
+ }
+ }
+
+ if (assert_srst)
+ {
+ /* default to asserting srst */
+ if (jtag_reset_config & RESET_SRST_PULLS_TRST)
+ {
+ jtag_add_reset(1, 1);
+ }
+ else
+ {
+ jtag_add_reset(0, 1);
+ }
}
else
{
- jtag_add_reset(0, 1);
+ /* this causes the luminary device to reset using the watchdog */
+ ahbap_write_system_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 );
+ }
}
target->state = TARGET_RESET;
armv7m_invalidate_core_regs(target);
+ if (target->reset_halt)
+ {
+ int retval;
+ 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", target_state_strings[target->state]);
+ LOG_DEBUG("target->state: %s",
+ Jim_Nvp_value2name_simple( nvp_target_state, target->state )->name);
/* deassert reset lines */
jtag_add_reset(0, 0);
LOG_WARNING("breakpoint already set");
return ERROR_OK;
}
-
+
if (cortex_m3->auto_bp_type)
{
breakpoint->type = (breakpoint->address < 0x20000000) ? BKPT_HARD : BKPT_SOFT;
return ERROR_OK;
}
-int cortex_m3_examine(struct command_context_s *cmd_ctx, struct target_s *target)
+int cortex_m3_examine(struct target_s *target)
{
int retval;
u32 cpuid, fpcr, dwtcr, ictr;
return ERROR_OK;
}
-
-int cortex_m3_quit()
+int cortex_m3_quit(void)
{
return ERROR_OK;
return ERROR_OK;
}
-int cortex_m3_init_arch_info(target_t *target, cortex_m3_common_t *cortex_m3, int chain_pos, char *variant)
+int cortex_m3_init_arch_info(target_t *target, cortex_m3_common_t *cortex_m3, int chain_pos, const char *variant)
{
armv7m_common_t *armv7m;
armv7m = &cortex_m3->armv7m;
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;
return ERROR_OK;
}
-/* target cortex_m3 <endianess> <startup_mode> <chain_pos> <variant>*/
-int cortex_m3_target_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, struct target_s *target)
+int cortex_m3_target_create(struct target_s *target, Jim_Interp *interp)
{
- int chain_pos;
- char *variant = NULL;
- cortex_m3_common_t *cortex_m3 = malloc(sizeof(cortex_m3_common_t));
- memset(cortex_m3, 0, sizeof(*cortex_m3));
-
- if (argc < 4)
- {
- LOG_ERROR("'target cortex_m3' requires at least one additional argument");
- exit(-1);
- }
-
- chain_pos = strtoul(args[3], NULL, 0);
+ cortex_m3_common_t *cortex_m3 = calloc(1,sizeof(cortex_m3_common_t));
- if (argc >= 5)
- variant = args[4];
-
- cortex_m3_init_arch_info(target, cortex_m3, chain_pos, variant);
- cortex_m3_register_commands(cmd_ctx);
+ cortex_m3_init_arch_info(target, cortex_m3, target->chain_position, target->variant);
return ERROR_OK;
}
return retval;
}
-
projects / openocd / blobdiff