diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/target/arm7_9_common.c | 710 | ||||
| -rw-r--r-- | src/target/embeddedice.c | 91 | ||||
| -rw-r--r-- | src/target/embeddedice.h | 12 |
3 files changed, 406 insertions, 407 deletions
diff --git a/src/target/arm7_9_common.c b/src/target/arm7_9_common.c index cf5f2b36..0531cad6 100644 --- a/src/target/arm7_9_common.c +++ b/src/target/arm7_9_common.c @@ -64,13 +64,13 @@ int arm7_9_reinit_embeddedice(target_t *target) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + breakpoint_t *breakpoint = target->breakpoints; - + arm7_9->wp_available = 2; arm7_9->wp0_used = 0; arm7_9->wp1_used = 0; - + /* mark all hardware breakpoints as unset */ while (breakpoint) { @@ -80,13 +80,13 @@ int arm7_9_reinit_embeddedice(target_t *target) } breakpoint = breakpoint->next; } - + if (arm7_9->sw_bkpts_enabled && arm7_9->sw_bkpts_use_wp) { arm7_9->sw_bkpts_enabled = 0; arm7_9_enable_sw_bkpts(target); } - + return ERROR_OK; } @@ -104,20 +104,20 @@ int arm7_9_get_arch_pointers(target_t *target, armv4_5_common_t **armv4_5_p, arm { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (armv4_5->common_magic != ARMV4_5_COMMON_MAGIC) { return -1; } - + if (arm7_9->common_magic != ARM7_9_COMMON_MAGIC) { return -1; } - + *armv4_5_p = armv4_5; *arm7_9_p = arm7_9; - + return ERROR_OK; } @@ -125,13 +125,13 @@ int arm7_9_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (arm7_9->force_hw_bkpts) breakpoint->type = BKPT_HARD; @@ -184,7 +184,7 @@ int arm7_9_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) target->type->read_memory(target, breakpoint->address, 4, 1, breakpoint->orig_instr); /* write the breakpoint instruction in target endianness (arm7_9->arm_bkpt is host endian) */ target_write_u32(target, breakpoint->address, arm7_9->arm_bkpt); - + target->type->read_memory(target, breakpoint->address, 4, 1, (u8 *)&verify); if (verify != arm7_9->arm_bkpt) { @@ -199,7 +199,7 @@ int arm7_9_set_breakpoint(struct target_s *target, breakpoint_t *breakpoint) target->type->read_memory(target, breakpoint->address, 2, 1, breakpoint->orig_instr); /* write the breakpoint instruction in target endianness (arm7_9->thumb_bkpt is host endian) */ target_write_u16(target, breakpoint->address, arm7_9->thumb_bkpt); - + target->type->read_memory(target, breakpoint->address, 2, 1, (u8 *)&verify); if (verify != arm7_9->thumb_bkpt) { @@ -218,7 +218,7 @@ int arm7_9_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); @@ -230,7 +230,7 @@ int arm7_9_unset_breakpoint(struct target_s *target, breakpoint_t *breakpoint) LOG_WARNING("breakpoint not set"); return ERROR_OK; } - + if (breakpoint->type == BKPT_HARD) { if (breakpoint->set == 1) @@ -276,40 +276,40 @@ int arm7_9_add_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (arm7_9->force_hw_bkpts) { LOG_DEBUG("forcing use of hardware breakpoint at address 0x%8.8x", breakpoint->address); breakpoint->type = BKPT_HARD; } - + if ((breakpoint->type == BKPT_SOFT) && (arm7_9->sw_bkpts_enabled == 0)) { LOG_INFO("sw breakpoint requested, but software breakpoints not enabled"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + if ((breakpoint->type == BKPT_HARD) && (arm7_9->wp_available < 1)) { LOG_INFO("no watchpoint unit available for hardware breakpoint"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + if ((breakpoint->length != 2) && (breakpoint->length != 4)) { LOG_INFO("only breakpoints of two (Thumb) or four (ARM) bytes length supported"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + if (breakpoint->type == BKPT_HARD) arm7_9->wp_available--; - + return ERROR_OK; } @@ -317,21 +317,21 @@ int arm7_9_remove_breakpoint(struct target_s *target, breakpoint_t *breakpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (breakpoint->set) { arm7_9_unset_breakpoint(target, breakpoint); } - + if (breakpoint->type == BKPT_HARD) arm7_9->wp_available++; - + return ERROR_OK; } @@ -341,20 +341,20 @@ int arm7_9_set_watchpoint(struct target_s *target, watchpoint_t *watchpoint) arm7_9_common_t *arm7_9 = armv4_5->arch_info; int rw_mask = 1; u32 mask; - + mask = watchpoint->length - 1; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (watchpoint->rw == WPT_ACCESS) rw_mask = 0; else rw_mask = 1; - + if (!arm7_9->wp0_used) { embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_ADDR_VALUE], watchpoint->address); @@ -382,13 +382,13 @@ int arm7_9_set_watchpoint(struct target_s *target, watchpoint_t *watchpoint) jtag_execute_queue(); watchpoint->set = 2; arm7_9->wp1_used = 2; - } + } else { LOG_ERROR("BUG: no hardware comparator available"); return ERROR_OK; } - + return ERROR_OK; } @@ -396,19 +396,19 @@ int arm7_9_unset_watchpoint(struct target_s *target, watchpoint_t *watchpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (!watchpoint->set) { LOG_WARNING("breakpoint not set"); return ERROR_OK; } - + if (watchpoint->set == 1) { embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0); @@ -430,25 +430,25 @@ int arm7_9_add_watchpoint(struct target_s *target, watchpoint_t *watchpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (arm7_9->wp_available < 1) { return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + if ((watchpoint->length != 1) && (watchpoint->length != 2) && (watchpoint->length != 4)) { return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + arm7_9->wp_available--; - + return ERROR_OK; } @@ -456,20 +456,20 @@ int arm7_9_remove_watchpoint(struct target_s *target, watchpoint_t *watchpoint) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (watchpoint->set) { arm7_9_unset_watchpoint(target, watchpoint); } - + arm7_9->wp_available++; - + return ERROR_OK; } @@ -478,17 +478,17 @@ int arm7_9_enable_sw_bkpts(struct target_s *target) armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; int retval; - + if (arm7_9->sw_bkpts_enabled) return ERROR_OK; - + if (arm7_9->wp_available < 1) { LOG_WARNING("can't enable sw breakpoints with no watchpoint unit available"); return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } arm7_9->wp_available--; - + if (!arm7_9->wp0_used) { embeddedice_set_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_VALUE], arm7_9->arm_bkpt); @@ -514,13 +514,13 @@ int arm7_9_enable_sw_bkpts(struct target_s *target) LOG_ERROR("BUG: both watchpoints used, but wp_available >= 1"); return ERROR_FAIL; } - + if ((retval = jtag_execute_queue()) != ERROR_OK) { LOG_ERROR("error writing EmbeddedICE registers to enable sw breakpoints"); return ERROR_FAIL; }; - + return ERROR_OK; } @@ -528,10 +528,10 @@ int arm7_9_disable_sw_bkpts(struct target_s *target) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (!arm7_9->sw_bkpts_enabled) return ERROR_OK; - + if (arm7_9->sw_bkpts_enabled == 1) { embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE], 0x0); @@ -554,12 +554,12 @@ int arm7_9_execute_sys_speed(struct target_s *target) { int timeout; int retval; - + armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; arm_jtag_t *jtag_info = &arm7_9->jtag_info; reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT]; - + /* set RESTART instruction */ jtag_add_end_state(TAP_RTI); if (arm7_9->need_bypass_before_restart) { @@ -567,7 +567,7 @@ int arm7_9_execute_sys_speed(struct target_s *target) arm_jtag_set_instr(jtag_info, 0xf, NULL); } arm_jtag_set_instr(jtag_info, 0x4, NULL); - + for (timeout=0; timeout<50; timeout++) { /* read debug status register */ @@ -577,14 +577,14 @@ int arm7_9_execute_sys_speed(struct target_s *target) if ((buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1)) && (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_SYSCOMP, 1))) break; - usleep(100000); + usleep(100000); } if (timeout == 50) { LOG_ERROR("timeout waiting for SYSCOMP & DBGACK, last DBG_STATUS: %x", buf_get_u32(dbg_stat->value, 0, dbg_stat->size)); return ERROR_TARGET_TIMEOUT; } - + return ERROR_OK; } @@ -592,12 +592,12 @@ int arm7_9_execute_fast_sys_speed(struct target_s *target) { static int set=0; static u8 check_value[4], check_mask[4]; - + armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; arm_jtag_t *jtag_info = &arm7_9->jtag_info; reg_t *dbg_stat = &arm7_9->eice_cache->reg_list[EICE_DBG_STAT]; - + /* set RESTART instruction */ jtag_add_end_state(TAP_RTI); if (arm7_9->need_bypass_before_restart) { @@ -605,11 +605,11 @@ int arm7_9_execute_fast_sys_speed(struct target_s *target) arm_jtag_set_instr(jtag_info, 0xf, NULL); } arm_jtag_set_instr(jtag_info, 0x4, NULL); - + if (!set) { /* check for DBGACK and SYSCOMP set (others don't care) */ - + /* NB! These are constants that must be available until after next jtag_execute() and we evaluate the values upon first execution in lieu of setting up these constants during early setup. @@ -618,7 +618,7 @@ int arm7_9_execute_fast_sys_speed(struct target_s *target) buf_set_u32(check_mask, 0, 32, 0x9); set=1; } - + /* read debug status register */ embeddedice_read_reg_w_check(dbg_stat, check_value, check_value); @@ -632,18 +632,18 @@ int arm7_9_target_request_data(target_t *target, u32 size, u8 *buffer) arm_jtag_t *jtag_info = &arm7_9->jtag_info; u32 *data; int i; - + data = malloc(size * (sizeof(u32))); - + embeddedice_receive(jtag_info, data, size); - + for (i = 0; i < size; i++) { h_u32_to_le(buffer + (i * 4), data[i]); } - + free(data); - + return ERROR_OK; } @@ -654,29 +654,29 @@ int arm7_9_handle_target_request(void *priv) return ERROR_OK; armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - arm_jtag_t *jtag_info = &arm7_9->jtag_info; + arm_jtag_t *jtag_info = &arm7_9->jtag_info; reg_t *dcc_control = &arm7_9->eice_cache->reg_list[EICE_COMMS_CTRL]; - - + + if (!target->dbg_msg_enabled) return ERROR_OK; - + if (target->state == TARGET_RUNNING) { /* read DCC control register */ embeddedice_read_reg(dcc_control); jtag_execute_queue(); - + /* check W bit */ if (buf_get_u32(dcc_control->value, 1, 1) == 1) { u32 request; - + embeddedice_receive(jtag_info, &request, 1); target_request(target, request); } } - + return ERROR_OK; } @@ -693,7 +693,7 @@ int arm7_9_poll(target_t *target) { return retval; } - + if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1)) { /* LOG_DEBUG("DBGACK set, dbg_state->value: 0x%x", buf_get_u32(dbg_stat->value, 0, 32));*/ @@ -715,12 +715,12 @@ int arm7_9_poll(target_t *target) } } } - + target->state = TARGET_HALTED; - + if ((retval = arm7_9_debug_entry(target)) != ERROR_OK) return retval; - + if (check_pc) { reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1); @@ -730,7 +730,7 @@ int arm7_9_poll(target_t *target) LOG_ERROR("PC was not 0. Does this target need srst_pulls_trst?"); } } - + target_call_event_callbacks(target, TARGET_EVENT_HALTED); } if (target->state == TARGET_DEBUG_RUNNING) @@ -738,7 +738,7 @@ int arm7_9_poll(target_t *target) target->state = TARGET_HALTED; if ((retval = arm7_9_debug_entry(target)) != ERROR_OK) return retval; - + target_call_event_callbacks(target, TARGET_EVENT_DEBUG_HALTED); } if (target->state != TARGET_HALTED) @@ -751,7 +751,7 @@ int arm7_9_poll(target_t *target) if (target->state != TARGET_DEBUG_RUNNING) target->state = TARGET_RUNNING; } - + return ERROR_OK; } @@ -768,7 +768,7 @@ int arm7_9_assert_reset(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; LOG_DEBUG("target->state: %s", target_state_strings[target->state]); - + if (!(jtag_reset_config & RESET_HAS_SRST)) { LOG_ERROR("Can't assert SRST"); @@ -780,9 +780,9 @@ int arm7_9_assert_reset(target_t *target) /* * Some targets do not support communication while SRST is asserted. We need to * set up the reset vector catch here. - * + * * If TRST is asserted, then these settings will be reset anyway, so setting them - * here is harmless. + * here is harmless. */ if (arm7_9->has_vector_catch) { @@ -808,7 +808,7 @@ int arm7_9_assert_reset(target_t *target) { jtag_add_reset(0, 1); } - + target->state = TARGET_RESET; jtag_add_sleep(50000); @@ -822,10 +822,10 @@ int arm7_9_assert_reset(target_t *target) int arm7_9_deassert_reset(target_t *target) { LOG_DEBUG("target->state: %s", target_state_strings[target->state]); - + /* deassert reset lines */ jtag_add_reset(0, 0); - + return ERROR_OK; } @@ -834,13 +834,13 @@ int arm7_9_clear_halt(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]; - + /* we used DBGRQ only if we didn't come out of reset */ if (!arm7_9->debug_entry_from_reset && arm7_9->use_dbgrq) { /* program EmbeddedICE Debug Control Register to deassert DBGRQ */ - buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGRQ, 1, 0); + buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGRQ, 1, 0); embeddedice_store_reg(dbg_ctrl); } else @@ -867,13 +867,13 @@ int arm7_9_clear_halt(target_t *target) embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_W0_DATA_MASK]); embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_MASK]); } - /* control value always has to be restored, as it was either disabled, + /* control value always has to be restored, as it was either disabled, * or enabled with possibly different bits */ embeddedice_store_reg(&arm7_9->eice_cache->reg_list[EICE_W0_CONTROL_VALUE]); } } - + return ERROR_OK; } @@ -885,10 +885,10 @@ int arm7_9_soft_reset_halt(struct target_s *target) reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]; int i; int retval; - + if ((retval=target_halt(target))!=ERROR_OK) return retval; - + for (i=0; i<10; i++) { if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_DBGACK, 1) != 0) @@ -898,7 +898,7 @@ int arm7_9_soft_reset_halt(struct target_s *target) return retval; /* do not eat all CPU, time out after 1 se*/ usleep(100*1000); - + } if (i==10) { @@ -906,7 +906,7 @@ int arm7_9_soft_reset_halt(struct target_s *target) return ERROR_TARGET_TIMEOUT; } target->state = TARGET_HALTED; - + /* program EmbeddedICE Debug Control Register to assert DBGACK and INTDIS * ensure that DBGRQ is cleared */ @@ -914,9 +914,9 @@ int arm7_9_soft_reset_halt(struct target_s *target) buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGRQ, 1, 0); buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_INTDIS, 1, 1); embeddedice_store_reg(dbg_ctrl); - + arm7_9_clear_halt(target); - + /* if the target is in Thumb state, change to ARM state */ if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_ITBIT, 1)) { @@ -926,36 +926,36 @@ int arm7_9_soft_reset_halt(struct target_s *target) armv4_5->core_state = ARMV4_5_STATE_THUMB; arm7_9->change_to_arm(target, &r0_thumb, &pc_thumb); } - + /* all register content is now invalid */ armv4_5_invalidate_core_regs(target); - + /* SVC, ARM state, IRQ and FIQ disabled */ buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8, 0xd3); armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 1; armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1; - + /* start fetching from 0x0 */ buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, 0x0); armv4_5->core_cache->reg_list[15].dirty = 1; armv4_5->core_cache->reg_list[15].valid = 1; - + armv4_5->core_mode = ARMV4_5_MODE_SVC; armv4_5->core_state = ARMV4_5_STATE_ARM; if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; - + /* reset registers */ for (i = 0; i <= 14; i++) - { + { buf_set_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).value, 0, 32, 0xffffffff); ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).dirty = 1; ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).valid = 1; } - + target_call_event_callbacks(target, TARGET_EVENT_HALTED); - + return ERROR_OK; } @@ -964,21 +964,21 @@ int arm7_9_halt(target_t *target) armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]; - + LOG_DEBUG("target->state: %s", target_state_strings[target->state]); - + 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) { @@ -991,8 +991,8 @@ int arm7_9_halt(target_t *target) * debug entry was already prepared in arm7_9_assert_reset() */ target->debug_reason = DBG_REASON_DBGRQ; - - return ERROR_OK; + + return ERROR_OK; } } @@ -1003,7 +1003,7 @@ int arm7_9_halt(target_t *target) if (arm7_9->set_special_dbgrq) { arm7_9->set_special_dbgrq(target); } else { - buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGRQ, 1, 1); + buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGRQ, 1, 1); embeddedice_store_reg(dbg_ctrl); } } @@ -1018,7 +1018,7 @@ int arm7_9_halt(target_t *target) } target->debug_reason = DBG_REASON_DBGRQ; - + return ERROR_OK; } @@ -1050,9 +1050,9 @@ int arm7_9_debug_entry(target_t *target) buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGRQ, 1, 0); buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_INTDIS, 1, 1); embeddedice_store_reg(dbg_ctrl); - + arm7_9_clear_halt(target); - + if ((retval = jtag_execute_queue()) != ERROR_OK) { return retval; @@ -1067,7 +1067,7 @@ int arm7_9_debug_entry(target_t *target) LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + /* if the target is in Thumb state, change to ARM state */ if (buf_get_u32(dbg_stat->value, EICE_DBG_STATUS_ITBIT, 1)) { @@ -1083,27 +1083,27 @@ int arm7_9_debug_entry(target_t *target) /* Entered debug from ARM mode */ armv4_5->core_state = ARMV4_5_STATE_ARM; } - + for (i = 0; i < 16; i++) context_p[i] = &context[i]; /* save core registers (r0 - r15 of current core mode) */ arm7_9->read_core_regs(target, 0xffff, context_p); arm7_9->read_xpsr(target, &cpsr, 0); - + if ((retval = jtag_execute_queue()) != ERROR_OK) return retval; - + /* if the core has been executing in Thumb state, set the T bit */ if (armv4_5->core_state == ARMV4_5_STATE_THUMB) - cpsr |= 0x20; - + cpsr |= 0x20; + buf_set_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 32, cpsr); armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 0; armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1; - + armv4_5->core_mode = cpsr & 0x1f; - + if (armv4_5_mode_to_number(armv4_5->core_mode) == -1) { target->state = TARGET_UNKNOWN; @@ -1112,7 +1112,7 @@ int arm7_9_debug_entry(target_t *target) } LOG_DEBUG("target entered debug state in %s mode", armv4_5_mode_strings[armv4_5_mode_to_number(armv4_5->core_mode)]); - + if (armv4_5->core_state == ARMV4_5_STATE_THUMB) { LOG_DEBUG("thumb state, applying fixups"); @@ -1139,7 +1139,7 @@ int arm7_9_debug_entry(target_t *target) if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; - + for (i=0; i<=15; i++) { LOG_DEBUG("r%i: 0x%8.8x", i, context[i]); @@ -1147,9 +1147,9 @@ int arm7_9_debug_entry(target_t *target) ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).dirty = 0; ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, i).valid = 1; } - + LOG_DEBUG("entered debug state at PC 0x%x", context[15]); - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; @@ -1185,13 +1185,13 @@ int arm7_9_full_context(target_t *target) arm7_9_common_t *arm7_9 = armv4_5->arch_info; LOG_DEBUG("-"); - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; @@ -1204,19 +1204,19 @@ int arm7_9_full_context(target_t *target) u32* reg_p[16]; int j; int valid = 1; - - /* check if there are invalid registers in the current mode + + /* check if there are invalid registers in the current mode */ for (j = 0; j <= 16; j++) { if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).valid == 0) valid = 0; } - + if (!valid) { u32 tmp_cpsr; - + /* change processor mode (and mask T bit) */ tmp_cpsr = buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & 0xE0; tmp_cpsr |= armv4_5_number_to_mode(i); @@ -1226,18 +1226,18 @@ int arm7_9_full_context(target_t *target) for (j = 0; j < 15; j++) { if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).valid == 0) - { + { reg_p[j] = (u32*)ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).value; mask |= 1 << j; ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).valid = 1; ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j).dirty = 0; } } - + /* if only the PSR is invalid, mask is all zeroes */ if (mask) arm7_9->read_core_regs(target, mask, reg_p); - + /* check if the PSR has to be read */ if (ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16).valid == 0) { @@ -1250,7 +1250,7 @@ int arm7_9_full_context(target_t *target) /* restore processor mode (mask T bit) */ arm7_9->write_xpsr_im8(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & ~0x20, 0, 0); - + if ((retval = jtag_execute_queue()) != ERROR_OK) { return retval; @@ -1262,27 +1262,27 @@ int arm7_9_restore_context(target_t *target) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - reg_t *reg; + reg_t *reg; armv4_5_core_reg_t *reg_arch_info; enum armv4_5_mode current_mode = armv4_5->core_mode; int i, j; int dirty; int mode_change; - + LOG_DEBUG("-"); - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (arm7_9->pre_restore_context) arm7_9->pre_restore_context(target); - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; - + /* iterate through processor modes (User, FIQ, IRQ, SVC, ABT, UND) * SYS shares registers with User, so we don't touch SYS */ @@ -1291,7 +1291,7 @@ int arm7_9_restore_context(target_t *target) LOG_DEBUG("examining %s mode", armv4_5_mode_strings[i]); dirty = 0; mode_change = 0; - /* check if there are dirty registers in the current mode + /* check if there are dirty registers in the current mode */ for (j = 0; j <= 16; j++) { @@ -1305,7 +1305,7 @@ int arm7_9_restore_context(target_t *target) LOG_DEBUG("examining dirty reg: %s", reg->name); if ((reg_arch_info->mode != ARMV4_5_MODE_ANY) && (reg_arch_info->mode != current_mode) - && !((reg_arch_info->mode == ARMV4_5_MODE_USR) && (armv4_5->core_mode == ARMV4_5_MODE_SYS)) + && !((reg_arch_info->mode == ARMV4_5_MODE_USR) && (armv4_5->core_mode == ARMV4_5_MODE_SYS)) && !((reg_arch_info->mode == ARMV4_5_MODE_SYS) && (armv4_5->core_mode == ARMV4_5_MODE_USR))) { mode_change = 1; @@ -1318,7 +1318,7 @@ int arm7_9_restore_context(target_t *target) } } } - + if (dirty) { u32 mask = 0x0; @@ -1328,7 +1328,7 @@ int arm7_9_restore_context(target_t *target) if (mode_change) { u32 tmp_cpsr; - + /* change processor mode (mask T bit) */ tmp_cpsr = buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & 0xE0; tmp_cpsr |= armv4_5_number_to_mode(i); @@ -1336,13 +1336,13 @@ int arm7_9_restore_context(target_t *target) arm7_9->write_xpsr_im8(target, tmp_cpsr & 0xff, 0, 0); current_mode = armv4_5_number_to_mode(i); } - + for (j = 0; j <= 14; j++) { reg = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), j); reg_arch_info = reg->arch_info; - - + + if (reg->dirty == 1) { regs[j] = buf_get_u32(reg->value, 0, 32); @@ -1353,12 +1353,12 @@ int arm7_9_restore_context(target_t *target) LOG_DEBUG("writing register %i of mode %s with value 0x%8.8x", j, armv4_5_mode_strings[i], regs[j]); } } - + if (mask) { arm7_9->write_core_regs(target, mask, regs); } - + reg = &ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5_number_to_mode(i), 16); reg_arch_info = reg->arch_info; if ((reg->dirty) && (reg_arch_info->mode != ARMV4_5_MODE_ANY)) @@ -1368,12 +1368,12 @@ int arm7_9_restore_context(target_t *target) } } } - + if ((armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty == 0) && (armv4_5->core_mode != current_mode)) { /* restore processor mode (mask T bit) */ u32 tmp_cpsr; - + tmp_cpsr = buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & 0xE0; tmp_cpsr |= armv4_5_number_to_mode(i); tmp_cpsr &= ~0x20; @@ -1388,12 +1388,12 @@ int arm7_9_restore_context(target_t *target) armv4_5->core_cache->reg_list[ARMV4_5_CPSR].dirty = 0; armv4_5->core_cache->reg_list[ARMV4_5_CPSR].valid = 1; } - + /* restore PC */ LOG_DEBUG("writing PC with value 0x%8.8x", buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); arm7_9->write_pc(target, buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32)); armv4_5->core_cache->reg_list[15].dirty = 0; - + if (arm7_9->post_restore_context) arm7_9->post_restore_context(target); @@ -1405,7 +1405,7 @@ int arm7_9_restart_core(struct target_s *target) armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; arm_jtag_t *jtag_info = &arm7_9->jtag_info; - + /* set RESTART instruction */ jtag_add_end_state(TAP_RTI); if (arm7_9->need_bypass_before_restart) { @@ -1413,7 +1413,7 @@ int arm7_9_restart_core(struct target_s *target) arm_jtag_set_instr(jtag_info, 0xf, NULL); } arm_jtag_set_instr(jtag_info, 0x4, NULL); - + jtag_add_runtest(1, TAP_RTI); return jtag_execute_queue(); } @@ -1421,7 +1421,7 @@ int arm7_9_restart_core(struct target_s *target) void arm7_9_enable_watchpoints(struct target_s *target) { watchpoint_t *watchpoint = target->watchpoints; - + while (watchpoint) { if (watchpoint->set == 0) @@ -1433,7 +1433,7 @@ void arm7_9_enable_watchpoints(struct target_s *target) void arm7_9_enable_breakpoints(struct target_s *target) { breakpoint_t *breakpoint = target->breakpoints; - + /* set any pending breakpoints */ while (breakpoint) { @@ -1455,7 +1455,7 @@ void arm7_9_disable_bkpts_and_wpts(struct target_s *target) arm7_9_unset_breakpoint(target, breakpoint); breakpoint = breakpoint->next; } - + while (watchpoint) { if (watchpoint->set != 0) @@ -1471,24 +1471,24 @@ int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_ breakpoint_t *breakpoint = target->breakpoints; reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]; int err; - + LOG_DEBUG("-"); - + if (target->state != TARGET_HALTED) { LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + if (!debug_execution) { target_free_all_working_areas(target); } - + /* current = 1: continue on current pc, otherwise continue at <address> */ if (!current) buf_set_u32(armv4_5->core_cache->reg_list[15].value, 0, 32, address); - + /* the front-end may request us not to handle breakpoints */ if (handle_breakpoints) { @@ -1496,14 +1496,14 @@ int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_ { LOG_DEBUG("unset breakpoint at 0x%8.8x", breakpoint->address); arm7_9_unset_breakpoint(target, breakpoint); - + LOG_DEBUG("enable single-step"); arm7_9->enable_single_step(target); - + target->debug_reason = DBG_REASON_SINGLESTEP; arm7_9_restore_context(target); - + if (armv4_5->core_state == ARMV4_5_STATE_ARM) arm7_9->branch_resume(target); else if (armv4_5->core_state == ARMV4_5_STATE_THUMB) @@ -1515,11 +1515,11 @@ int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_ LOG_ERROR("unhandled core state"); return ERROR_FAIL; } - + buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGACK, 1, 0); embeddedice_write_reg(dbg_ctrl, buf_get_u32(dbg_ctrl->value, 0, dbg_ctrl->size)); err = arm7_9_execute_sys_speed(target); - + LOG_DEBUG("disable single-step"); arm7_9->disable_single_step(target); @@ -1537,13 +1537,13 @@ int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_ arm7_9_set_breakpoint(target, breakpoint); } } - + /* enable any pending breakpoints and watchpoints */ arm7_9_enable_breakpoints(target); arm7_9_enable_watchpoints(target); - + arm7_9_restore_context(target); - + if (armv4_5->core_state == ARMV4_5_STATE_ARM) { arm7_9->branch_resume(target); @@ -1557,18 +1557,18 @@ int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_ LOG_ERROR("unhandled core state"); return ERROR_FAIL; } - + /* deassert DBGACK and INTDIS */ buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGACK, 1, 0); /* INTDIS only when we really resume, not during debug execution */ if (!debug_execution) buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_INTDIS, 1, 0); embeddedice_write_reg(dbg_ctrl, buf_get_u32(dbg_ctrl->value, 0, dbg_ctrl->size)); - + arm7_9_restart_core(target); - + target->debug_reason = DBG_REASON_NOTHALTED; - + if (!debug_execution) { /* registers are now invalid */ @@ -1581,9 +1581,9 @@ int arm7_9_resume(struct target_s *target, int current, u32 address, int handle_ target->state = TARGET_DEBUG_RUNNING; target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED); } - + LOG_DEBUG("target resumed"); - + return ERROR_OK; } @@ -1591,7 +1591,7 @@ void arm7_9_enable_eice_step(target_t *target) { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + /* setup an inverse breakpoint on the current PC * - comparator 1 matches the current address * - rangeout from comparator 1 is connected to comparator 0 rangein @@ -1635,22 +1635,22 @@ int arm7_9_step(struct target_s *target, int current, u32 address, int handle_br LOG_WARNING("target not halted"); return ERROR_TARGET_NOT_HALTED; } - + /* current = 1: continue on current pc, otherwise continue at <address> */ if (!current) buf_set_u32(armv4_5->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(armv4_5->core_cache->reg_list[15].value, 0, 32)))) arm7_9_unset_breakpoint(target, breakpoint); - + target->debug_reason = DBG_REASON_SINGLESTEP; arm7_9_restore_context(target); - + arm7_9->enable_single_step(target); - + if (armv4_5->core_state == ARMV4_5_STATE_ARM) { arm7_9->branch_resume(target); @@ -1664,15 +1664,15 @@ int arm7_9_step(struct target_s *target, int current, u32 address, int handle_br LOG_ERROR("unhandled core state"); return ERROR_FAIL; } - + target_call_event_callbacks(target, TARGET_EVENT_RESUMED); err = arm7_9_execute_sys_speed(target); arm7_9->disable_single_step(target); - + /* registers are now invalid */ armv4_5_invalidate_core_regs(target); - + if (err != ERROR_OK) { target->state = TARGET_UNKNOWN; @@ -1681,10 +1681,10 @@ int arm7_9_step(struct target_s *target, int current, u32 address, int handle_br target_call_event_callbacks(target, TARGET_EVENT_HALTED); LOG_DEBUG("target stepped"); } - + if (breakpoint) arm7_9_set_breakpoint(target, breakpoint); - + return err; } @@ -1696,33 +1696,33 @@ int arm7_9_read_core_reg(struct target_s *target, int num, enum armv4_5_mode mod int retval; armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; - + enum armv4_5_mode reg_mode = ((armv4_5_core_reg_t*)ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).arch_info)->mode; - + if ((num < 0) || (num > 16)) return ERROR_INVALID_ARGUMENTS; - + if ((mode != ARMV4_5_MODE_ANY) && (mode != armv4_5->core_mode) && (reg_mode != ARMV4_5_MODE_ANY)) { u32 tmp_cpsr; - + /* change processor mode (mask T bit) */ tmp_cpsr = buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & 0xE0; tmp_cpsr |= mode; tmp_cpsr &= ~0x20; arm7_9->write_xpsr_im8(target, tmp_cpsr & 0xff, 0, 0); } - + if ((num >= 0) && (num <= 15)) { /* read a normal core register */ reg_p[num] = &value; - + arm7_9->read_core_regs(target, 1 << num, reg_p); } else @@ -1732,28 +1732,28 @@ int arm7_9_read_core_reg(struct target_s *target, int num, enum armv4_5_mode mod */ armv4_5_core_reg_t *arch_info = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).arch_info; int spsr = (arch_info->mode == ARMV4_5_MODE_ANY) ? 0 : 1; - + arm7_9->read_xpsr(target, &value, spsr); } - + if ((retval = jtag_execute_queue()) != ERROR_OK) { return retval; } - + ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).valid = 1; ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).dirty = 0; buf_set_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).value, 0, 32, value); - + if ((mode != ARMV4_5_MODE_ANY) && (mode != armv4_5->core_mode) && (reg_mode != ARMV4_5_MODE_ANY)) { /* restore processor mode (mask T bit) */ arm7_9->write_xpsr_im8(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & ~0x20, 0, 0); } - + return ERROR_OK; - + } int arm7_9_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mode, u32 value) @@ -1761,32 +1761,32 @@ int arm7_9_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mo u32 reg[16]; armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; - + enum armv4_5_mode reg_mode = ((armv4_5_core_reg_t*)ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).arch_info)->mode; if ((num < 0) || (num > 16)) return ERROR_INVALID_ARGUMENTS; - + if ((mode != ARMV4_5_MODE_ANY) && (mode != armv4_5->core_mode) && (reg_mode != ARMV4_5_MODE_ANY)) { u32 tmp_cpsr; - + /* change processor mode (mask T bit) */ tmp_cpsr = buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & 0xE0; tmp_cpsr |= mode; tmp_cpsr &= ~0x20; arm7_9->write_xpsr_im8(target, tmp_cpsr & 0xff, 0, 0); } - + if ((num >= 0) && (num <= 15)) { /* write a normal core register */ reg[num] = value; - + arm7_9->write_core_regs(target, 1 << num, reg); } else @@ -1796,24 +1796,24 @@ int arm7_9_write_core_reg(struct target_s *target, int num, enum armv4_5_mode mo */ armv4_5_core_reg_t *arch_info = ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).arch_info; int spsr = (arch_info->mode == ARMV4_5_MODE_ANY) ? 0 : 1; - + /* if we're writing the CPSR, mask the T bit */ if (!spsr) value &= ~0x20; - + arm7_9->write_xpsr(target, value, spsr); } - + ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).valid = 1; ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, mode, num).dirty = 0; - + if ((mode != ARMV4_5_MODE_ANY) && (mode != armv4_5->core_mode) && (reg_mode != ARMV4_5_MODE_ANY)) { /* restore processor mode (mask T bit) */ arm7_9->write_xpsr_im8(target, buf_get_u32(armv4_5->core_cache->reg_list[ARMV4_5_CPSR].value, 0, 8) & ~0x20, 0, 0); } - + return jtag_execute_queue(); } @@ -1821,7 +1821,7 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count { armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + u32 reg[16]; int num_accesses = 0; int thisrun_accesses; @@ -1829,7 +1829,7 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count u32 cpsr; int retval; int last_reg = 0; - + LOG_DEBUG("address: 0x%8.8x, size: 0x%8.8x, count: 0x%8.8x", address, size, count); if (target->state != TARGET_HALTED) @@ -1844,11 +1844,11 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count if (((size == 4) && (address & 0x3u)) || ((size == 2) && (address & 0x1u))) return ERROR_TARGET_UNALIGNED_ACCESS; - + /* load the base register with the address of the first word */ reg[0] = address; arm7_9->write_core_regs(target, 0x1, reg); - + switch (size) { case 4: @@ -1857,12 +1857,12 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count u32 reg_list; thisrun_accesses = ((count - num_accesses) >= 14) ? 14 : (count - num_accesses); reg_list = (0xffff >> (15 - thisrun_accesses)) & 0xfffe; - + if (last_reg <= thisrun_accesses) last_reg = thisrun_accesses; - + arm7_9->load_word_regs(target, reg_list); - + /* fast memory reads are only safe when the target is running * from a sufficiently high clock (32 kHz is usually too slow) */ @@ -1870,13 +1870,13 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count arm7_9_execute_fast_sys_speed(target); else arm7_9_execute_sys_speed(target); - + arm7_9->read_core_regs_target_buffer(target, reg_list, buffer, 4); - + /* advance buffer, count number of accesses */ buffer += thisrun_accesses * 4; num_accesses += thisrun_accesses; - } + } break; case 2: while (num_accesses < count) @@ -1884,7 +1884,7 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count u32 reg_list; thisrun_accesses = ((count - num_accesses) >= 14) ? 14 : (count - num_accesses); reg_list = (0xffff >> (15 - thisrun_accesses)) & 0xfffe; - + for (i = 1; i <= thisrun_accesses; i++) { if (i > last_reg) @@ -1898,13 +1898,13 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count else arm7_9_execute_sys_speed(target); } - + arm7_9->read_core_regs_target_buffer(target, reg_list, buffer, 2); - + /* advance buffer, count number of accesses */ buffer += thisrun_accesses * 2; num_accesses += thisrun_accesses; - } + } break; case 1: while (num_accesses < count) @@ -1912,7 +1912,7 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count u32 reg_list; thisrun_accesses = ((count - num_accesses) >= 14) ? 14 : (count - num_accesses); reg_list = (0xffff >> (15 - thisrun_accesses)) & 0xfffe; - + for (i = 1; i <= thisrun_accesses; i++) { if (i > last_reg) @@ -1926,20 +1926,20 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count else arm7_9_execute_sys_speed(target); } - + arm7_9->read_core_regs_target_buffer(target, reg_list, buffer, 1); - + /* advance buffer, count number of accesses */ buffer += thisrun_accesses * 1; num_accesses += thisrun_accesses; - } + } break; default: LOG_ERROR("BUG: we shouldn't get here"); exit(-1); break; } - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; @@ -1961,7 +1961,7 @@ int arm7_9_read_memory(struct target_s *target, u32 address, u32 size, u32 count return ERROR_TARGET_DATA_ABORT; } - + return ERROR_OK; } @@ -1970,7 +1970,7 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]; - + u32 reg[16]; int num_accesses = 0; int thisrun_accesses; @@ -1995,15 +1995,15 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun if (((size == 4) && (address & 0x3u)) || ((size == 2) && (address & 0x1u))) return ERROR_TARGET_UNALIGNED_ACCESS; - + /* load the base register with the address of the first word */ reg[0] = address; arm7_9->write_core_regs(target, 0x1, reg); - + /* Clear DBGACK, to make sure memory fetches work as expected */ buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGACK, 1, 0); embeddedice_store_reg(dbg_ctrl); - + switch (size) { case 4: @@ -2012,7 +2012,7 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun u32 reg_list; thisrun_accesses = ((count - num_accesses) >= 14) ? 14 : (count - num_accesses); reg_list = (0xffff >> (15 - thisrun_accesses)) & 0xfffe; - + for (i = 1; i <= thisrun_accesses; i++) { if (i > last_reg) @@ -2020,11 +2020,11 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun reg[i] = target_buffer_get_u32(target, buffer); buffer += 4; } - + arm7_9->write_core_regs(target, reg_list, reg); - + arm7_9->store_word_regs(target, reg_list); - + /* fast memory writes are only safe when the target is running * from a sufficiently high clock (32 kHz is usually too slow) */ @@ -2032,9 +2032,9 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun arm7_9_execute_fast_sys_speed(target); else arm7_9_execute_sys_speed(target); - + num_accesses += thisrun_accesses; - } + } break; case 2: while (num_accesses < count) @@ -2042,7 +2042,7 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun u32 reg_list; thisrun_accesses = ((count - num_accesses) >= 14) ? 14 : (count - num_accesses); reg_list = (0xffff >> (15 - thisrun_accesses)) & 0xfffe; - + for (i = 1; i <= thisrun_accesses; i++) { if (i > last_reg) @@ -2050,13 +2050,13 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun reg[i] = target_buffer_get_u16(target, buffer) & 0xffff; buffer += 2; } - + arm7_9->write_core_regs(target, reg_list, reg); - + for (i = 1; i <= thisrun_accesses; i++) { arm7_9->store_hword_reg(target, i); - + /* fast memory writes are only safe when the target is running * from a sufficiently high clock (32 kHz is usually too slow) */ @@ -2065,9 +2065,9 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun else arm7_9_execute_sys_speed(target); } - + num_accesses += thisrun_accesses; - } + } break; case 1: while (num_accesses < count) @@ -2075,16 +2075,16 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun u32 reg_list; thisrun_accesses = ((count - num_accesses) >= 14) ? 14 : (count - num_accesses); reg_list = (0xffff >> (15 - thisrun_accesses)) & 0xfffe; - + for (i = 1; i <= thisrun_accesses; i++) { if (i > last_reg) last_reg = i; reg[i] = *buffer++ & 0xff; } - + arm7_9->write_core_regs(target, reg_list, reg); - + for (i = 1; i <= thisrun_accesses; i++) { arm7_9->store_byte_reg(target, i); @@ -2096,20 +2096,20 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun else arm7_9_execute_sys_speed(target); } - + num_accesses += thisrun_accesses; - } + } break; default: LOG_ERROR("BUG: we shouldn't get here"); exit(-1); break; } - + /* Re-Set DBGACK */ buf_set_u32(dbg_ctrl->value, EICE_DBG_CONTROL_DBGACK, 1, 1); embeddedice_store_reg(dbg_ctrl); - + if (armv4_5_mode_to_number(armv4_5->core_mode)==-1) return ERROR_FAIL; @@ -2131,11 +2131,11 @@ int arm7_9_write_memory(struct target_s *target, u32 address, u32 size, u32 coun return ERROR_TARGET_DATA_ABORT; } - + return ERROR_OK; } -static const u32 dcc_code[] = +static const u32 dcc_code[] = { /* MRC TST BNE MRC STR B */ 0xee101e10, 0xe3110001, 0x0afffffc, 0xee111e10, 0xe4801004, 0xeafffff9 @@ -2150,7 +2150,7 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe u32 r1 = buf_get_u32(armv4_5->core_cache->reg_list[1].value, 0, 32); u32 pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32); int i; - + if (!arm7_9->dcc_downloads) return target->type->write_memory(target, address, 4, count, buffer); @@ -2158,61 +2158,47 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe if (!arm7_9->dcc_working_area) { u8 dcc_code_buf[6 * 4]; - + /* make sure we have a working area */ if (target_alloc_working_area(target, 24, &arm7_9->dcc_working_area) != ERROR_OK) { LOG_INFO("no working area available, falling back to memory writes"); return target->type->write_memory(target, address, 4, count, buffer); } - + /* copy target instructions to target endianness */ for (i = 0; i < 6; i++) { target_buffer_set_u32(target, dcc_code_buf + i*4, dcc_code[i]); } - + /* write DCC code to working area */ target->type->write_memory(target, arm7_9->dcc_working_area->address, 4, 6, dcc_code_buf); } - + buf_set_u32(armv4_5->core_cache->reg_list[0].value, 0, 32, address); armv4_5->core_cache->reg_list[0].valid = 1; armv4_5->core_cache->reg_list[0].dirty = 1; armv4_5->core_state = ARMV4_5_STATE_ARM; arm7_9_resume(target, 0, arm7_9->dcc_working_area->address, 1, 1); - + int little=target->endianness==TARGET_LITTLE_ENDIAN; if (count>2) { /* Handle first & last using standard embeddedice_write_reg and the middle ones w/the - core function repeated. + core function repeated. */ embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little)); buffer+=4; - + embeddedice_reg_t *ice_reg = arm7_9->eice_cache->reg_list[EICE_COMMS_DATA].arch_info; u8 reg_addr = ice_reg->addr & 0x1f; int chain_pos = ice_reg->jtag_info->chain_pos; - /* we want the compiler to duplicate the code, which it does not - * do automatically. - */ - if (little) - { - for (i = 1; i < count - 1; i++) - { - embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little)); - buffer += 4; - } - } else - { - for (i = 1; i < count - 1; i++) - { - embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little)); - buffer += 4; - } - } + + embeddedice_write_dcc(chain_pos, reg_addr, buffer, little, count-2); + buffer += (count-2)*4; + embeddedice_write_reg(&arm7_9->eice_cache->reg_list[EICE_COMMS_DATA], fast_target_buffer_get_u32(buffer, little)); } else { @@ -2222,9 +2208,9 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe buffer += 4; } } - + target_halt(target); - + for (i=0; i<100; i++) { target_poll(target); @@ -2237,7 +2223,7 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe LOG_ERROR("bulk write timed out, target not halted"); return ERROR_TARGET_TIMEOUT; } - + /* restore target state */ buf_set_u32(armv4_5->core_cache->reg_list[0].value, 0, 32, r0); armv4_5->core_cache->reg_list[0].valid = 1; @@ -2249,7 +2235,7 @@ int arm7_9_bulk_write_memory(target_t *target, u32 address, u32 count, u8 *buffe armv4_5->core_cache->reg_list[15].valid = 1; armv4_5->core_cache->reg_list[15].dirty = 1; armv4_5->core_state = core_state; - + return ERROR_OK; } @@ -2259,7 +2245,7 @@ int arm7_9_checksum_memory(struct target_s *target, u32 address, u32 count, u32* armv4_5_algorithm_t armv4_5_info; reg_param_t reg_params[2]; int retval; - + u32 arm7_9_crc_code[] = { 0xE1A02000, /* mov r2, r0 */ 0xE3E00000, /* mov r0, #0xffffffff */ @@ -2287,28 +2273,28 @@ int arm7_9_checksum_memory(struct target_s *target, u32 address, u32 count, u32* 0xEAFFFFFE, /* b end */ 0x04C11DB7 /* CRC32XOR: .word 0x04C11DB7 */ }; - + int i; - + if (target_alloc_working_area(target, sizeof(arm7_9_crc_code), &crc_algorithm) != ERROR_OK) { return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + /* convert flash writing code into a buffer in target endianness */ for (i = 0; i < (sizeof(arm7_9_crc_code)/sizeof(u32)); i++) target_write_u32(target, crc_algorithm->address + i*sizeof(u32), arm7_9_crc_code[i]); - + armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC; armv4_5_info.core_mode = ARMV4_5_MODE_SVC; armv4_5_info.core_state = ARMV4_5_STATE_ARM; - + init_reg_param(®_params[0], "r0", 32, PARAM_IN_OUT); init_reg_param(®_params[1], "r1", 32, PARAM_OUT); - + buf_set_u32(reg_params[0].value, 0, 32, address); buf_set_u32(reg_params[1].value, 0, 32, count); - + if ((retval = target->type->run_algorithm(target, 0, NULL, 2, reg_params, crc_algorithm->address, crc_algorithm->address + (sizeof(arm7_9_crc_code) - 8), 20000, &armv4_5_info)) != ERROR_OK) { @@ -2318,14 +2304,14 @@ int arm7_9_checksum_memory(struct target_s *target, u32 address, u32 count, u32* target_free_working_area(target, crc_algorithm); return retval; } - + *checksum = buf_get_u32(reg_params[0].value, 0, 32); - + destroy_reg_param(®_params[0]); destroy_reg_param(®_params[1]); - + target_free_working_area(target, crc_algorithm); - + return ERROR_OK; } @@ -2336,7 +2322,7 @@ int arm7_9_blank_check_memory(struct target_s *target, u32 address, u32 count, u armv4_5_algorithm_t armv4_5_info; int retval; int i; - + u32 erase_check_code[] = { /* loop: */ @@ -2353,11 +2339,11 @@ int arm7_9_blank_check_memory(struct target_s *target, u32 address, u32 count, u { return ERROR_TARGET_RESOURCE_NOT_AVAILABLE; } - + /* convert flash writing code into a buffer in target endianness */ for (i = 0; i < (sizeof(erase_check_code)/sizeof(u32)); i++) target_write_u32(target, erase_check_algorithm->address + i*sizeof(u32), erase_check_code[i]); - + armv4_5_info.common_magic = ARMV4_5_COMMON_MAGIC; armv4_5_info.core_mode = ARMV4_5_MODE_SVC; armv4_5_info.core_state = ARMV4_5_STATE_ARM; @@ -2370,8 +2356,8 @@ int arm7_9_blank_check_memory(struct target_s *target, u32 address, u32 count, u init_reg_param(®_params[2], "r2", 32, PARAM_IN_OUT); buf_set_u32(reg_params[2].value, 0, 32, 0xff); - - if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, + + if ((retval = target->type->run_algorithm(target, 0, NULL, 3, reg_params, erase_check_algorithm->address, erase_check_algorithm->address + (sizeof(erase_check_code) - 4), 10000, &armv4_5_info)) != ERROR_OK) { destroy_reg_param(®_params[0]); @@ -2380,29 +2366,29 @@ int arm7_9_blank_check_memory(struct target_s *target, u32 address, u32 count, u target_free_working_area(target, erase_check_algorithm); return 0; } - + *blank = buf_get_u32(reg_params[2].value, 0, 32); - + destroy_reg_param(®_params[0]); destroy_reg_param(®_params[1]); destroy_reg_param(®_params[2]); - + target_free_working_area(target, erase_check_algorithm); - + return ERROR_OK; } int arm7_9_register_commands(struct command_context_s *cmd_ctx) { command_t *arm7_9_cmd; - + arm7_9_cmd = register_command(cmd_ctx, NULL, "arm7_9", NULL, COMMAND_ANY, "arm7/9 specific commands"); register_command(cmd_ctx, arm7_9_cmd, "write_xpsr", handle_arm7_9_write_xpsr_command, COMMAND_EXEC, "write program status register <value> <not cpsr|spsr>"); register_command(cmd_ctx, arm7_9_cmd, "write_xpsr_im8", handle_arm7_9_write_xpsr_im8_command, COMMAND_EXEC, "write program status register <8bit immediate> <rotate> <not cpsr|spsr>"); - - register_command(cmd_ctx, arm7_9_cmd, "write_core_reg", handle_arm7_9_write_core_reg_command, COMMAND_EXEC, "write core register <num> <mode> <value>"); - + + register_command(cmd_ctx, arm7_9_cmd, "write_core_reg", handle_arm7_9_write_core_reg_command, COMMAND_EXEC, "write core register <num> <mode> <value>"); + register_command(cmd_ctx, arm7_9_cmd, "sw_bkpts", handle_arm7_9_sw_bkpts_command, COMMAND_EXEC, "support for software breakpoints <enable|disable>"); register_command(cmd_ctx, arm7_9_cmd, "force_hw_bkpts", handle_arm7_9_force_hw_bkpts_command, COMMAND_EXEC, "use hardware breakpoints for all breakpoints (disables sw breakpoint support) <enable|disable>"); register_command(cmd_ctx, arm7_9_cmd, "dbgrq", handle_arm7_9_dbgrq_command, @@ -2415,9 +2401,9 @@ int arm7_9_register_commands(struct command_context_s *cmd_ctx) COMMAND_ANY, "use DCC downloads for larger memory writes <enable|disable>"); armv4_5_register_commands(cmd_ctx); - + etm_register_commands(cmd_ctx); - + return ERROR_OK; } @@ -2435,33 +2421,33 @@ int handle_arm7_9_write_xpsr_command(struct command_context_s *cmd_ctx, char *cm command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (target->state != TARGET_HALTED) { command_print(cmd_ctx, "can't write registers while running"); return ERROR_OK; } - + if (argc < 2) { command_print(cmd_ctx, "usage: write_xpsr <value> <not cpsr|spsr>"); return ERROR_OK; } - + value = strtoul(args[0], NULL, 0); spsr = strtol(args[1], NULL, 0); - + /* if we're writing the CPSR, mask the T bit */ if (!spsr) value &= ~0x20; - + arm7_9->write_xpsr(target, value, spsr); if ((retval = jtag_execute_queue()) != ERROR_OK) { LOG_ERROR("JTAG error while writing to xpsr"); return retval; } - + return ERROR_OK; } @@ -2480,30 +2466,30 @@ int handle_arm7_9_write_xpsr_im8_command(struct command_context_s *cmd_ctx, char command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (target->state != TARGET_HALTED) { command_print(cmd_ctx, "can't write registers while running"); return ERROR_OK; } - + if (argc < 3) { command_print(cmd_ctx, "usage: write_xpsr_im8 <im8> <rotate> <not cpsr|spsr>"); return ERROR_OK; } - + value = strtoul(args[0], NULL, 0); rotate = strtol(args[1], NULL, 0); spsr = strtol(args[2], NULL, 0); - + arm7_9->write_xpsr_im8(target, value, rotate, spsr); if ((retval = jtag_execute_queue()) != ERROR_OK) { LOG_ERROR("JTAG error while writing 8-bit immediate to xpsr"); return retval; } - + return ERROR_OK; } @@ -2515,31 +2501,31 @@ int handle_arm7_9_write_core_reg_command(struct command_context_s *cmd_ctx, char target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; arm7_9_common_t *arm7_9; - + if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK) { command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (target->state != TARGET_HALTED) { command_print(cmd_ctx, "can't write registers while running"); return ERROR_OK; } - + if (argc < 3) { command_print(cmd_ctx, "usage: write_core_reg <num> <mode> <value>"); return ERROR_OK; } - + num = strtol(args[0], NULL, 0); mode = strtoul(args[1], NULL, 0); value = strtoul(args[2], NULL, 0); - + arm7_9_write_core_reg(target, num, mode, value); - + return ERROR_OK; } @@ -2548,7 +2534,7 @@ int handle_arm7_9_sw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; arm7_9_common_t *arm7_9; - + if (target->state != TARGET_HALTED) { LOG_ERROR("target not halted"); @@ -2560,13 +2546,13 @@ int handle_arm7_9_sw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (argc == 0) { command_print(cmd_ctx, "software breakpoints %s", (arm7_9->sw_bkpts_enabled) ? "enabled" : "disabled"); return ERROR_OK; } - + if (strcmp("enable", args[0]) == 0) { if (arm7_9->sw_bkpts_use_wp) @@ -2593,9 +2579,9 @@ int handle_arm7_9_sw_bkpts_command(struct command_context_s *cmd_ctx, char *cmd, { command_print(cmd_ctx, "usage: arm7_9 sw_bkpts <enable|disable>"); } - + command_print(cmd_ctx, "software breakpoints %s", (arm7_9->sw_bkpts_enabled) ? "enabled" : "disabled"); - + return ERROR_OK; } @@ -2604,13 +2590,13 @@ int handle_arm7_9_force_hw_bkpts_command(struct command_context_s *cmd_ctx, char target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; arm7_9_common_t *arm7_9; - + if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK) { command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if ((argc >= 1) && (strcmp("enable", args[0]) == 0)) { arm7_9->force_hw_bkpts = 1; @@ -2627,7 +2613,7 @@ int handle_arm7_9_force_hw_bkpts_command(struct command_context_s *cmd_ctx, char { command_print(cmd_ctx, "usage: arm7_9 force_hw_bkpts <enable|disable>"); } - + command_print(cmd_ctx, "force hardware breakpoints %s", (arm7_9->force_hw_bkpts) ? "enabled" : "disabled"); return ERROR_OK; @@ -2638,13 +2624,13 @@ int handle_arm7_9_dbgrq_command(struct command_context_s *cmd_ctx, char *cmd, ch target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; arm7_9_common_t *arm7_9; - + if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK) { command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (argc > 0) { if (strcmp("enable", args[0]) == 0) @@ -2660,7 +2646,7 @@ int handle_arm7_9_dbgrq_command(struct command_context_s *cmd_ctx, char *cmd, ch command_print(cmd_ctx, "usage: arm7_9 dbgrq <enable|disable>"); } } - + command_print(cmd_ctx, "use of EmbeddedICE dbgrq instead of breakpoint for target halt %s", (arm7_9->use_dbgrq) ? "enabled" : "disabled"); return ERROR_OK; @@ -2671,13 +2657,13 @@ int handle_arm7_9_fast_memory_access_command(struct command_context_s *cmd_ctx, target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; arm7_9_common_t *arm7_9; - + if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK) { command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (argc > 0) { if (strcmp("enable", args[0]) == 0) @@ -2693,7 +2679,7 @@ int handle_arm7_9_fast_memory_access_command(struct command_context_s *cmd_ctx, command_print(cmd_ctx, "usage: arm7_9 fast_memory_access <enable|disable>"); } } - + command_print(cmd_ctx, "fast memory access is %s", (arm7_9->fast_memory_access) ? "enabled" : "disabled"); return ERROR_OK; @@ -2704,13 +2690,13 @@ int handle_arm7_9_dcc_downloads_command(struct command_context_s *cmd_ctx, char target_t *target = get_current_target(cmd_ctx); armv4_5_common_t *armv4_5; arm7_9_common_t *arm7_9; - + if (arm7_9_get_arch_pointers(target, &armv4_5, &arm7_9) != ERROR_OK) { command_print(cmd_ctx, "current target isn't an ARM7/ARM9 target"); return ERROR_OK; } - + if (argc > 0) { if (strcmp("enable", args[0]) == 0) @@ -2726,7 +2712,7 @@ int handle_arm7_9_dcc_downloads_command(struct command_context_s *cmd_ctx, char command_print(cmd_ctx, "usage: arm7_9 dcc_downloads <enable|disable>"); } } - + command_print(cmd_ctx, "dcc downloads are %s", (arm7_9->dcc_downloads) ? "enabled" : "disabled"); return ERROR_OK; @@ -2735,38 +2721,38 @@ int handle_arm7_9_dcc_downloads_command(struct command_context_s *cmd_ctx, char int arm7_9_init_arch_info(target_t *target, arm7_9_common_t *arm7_9) { armv4_5_common_t *armv4_5 = &arm7_9->armv4_5_common; - + arm7_9->common_magic = ARM7_9_COMMON_MAGIC; - + arm_jtag_setup_connection(&arm7_9->jtag_info); arm7_9->wp_available = 2; arm7_9->wp0_used = 0; arm7_9->wp1_used = 0; arm7_9->force_hw_bkpts = 0; arm7_9->use_dbgrq = 0; - + arm7_9->etm_ctx = NULL; arm7_9->has_single_step = 0; arm7_9->has_monitor_mode = 0; arm7_9->has_vector_catch = 0; - + arm7_9->debug_entry_from_reset = 0; - + arm7_9->dcc_working_area = NULL; - + arm7_9->fast_memory_access = fast_and_dangerous; arm7_9->dcc_downloads = fast_and_dangerous; - + arm7_9->need_bypass_before_restart = 0; - + armv4_5->arch_info = arm7_9; armv4_5->read_core_reg = arm7_9_read_core_reg; armv4_5->write_core_reg = arm7_9_write_core_reg; armv4_5->full_context = arm7_9_full_context; - + armv4_5_init_arch_info(target, armv4_5); - + target_register_timer_callback(arm7_9_handle_target_request, 1, 1, target); - + return ERROR_OK; } diff --git a/src/target/embeddedice.c b/src/target/embeddedice.c index 56368452..32e451a2 100644 --- a/src/target/embeddedice.c +++ b/src/target/embeddedice.c @@ -39,7 +39,7 @@ #include <stdlib.h> -bitfield_desc_t embeddedice_comms_ctrl_bitfield_desc[] = +bitfield_desc_t embeddedice_comms_ctrl_bitfield_desc[] = { {"R", 1}, {"W", 1}, @@ -59,24 +59,24 @@ char* embeddedice_reg_list[] = { "debug_ctrl", "debug_status", - + "comms_ctrl", "comms_data", - + "watch 0 addr value", "watch 0 addr mask", "watch 0 data value", "watch 0 data mask", "watch 0 control value", "watch 0 control mask", - + "watch 1 addr value", "watch 1 addr mask", "watch 1 data value", "watch 1 data mask", "watch 1 control value", "watch 1 control mask", - + "vector catch" }; @@ -99,26 +99,26 @@ reg_cache_t* embeddedice_build_reg_cache(target_t *target, arm7_9_common_t *arm7 int num_regs; int i; int eice_version = 0; - + /* register a register arch-type for EmbeddedICE registers only once */ if (embeddedice_reg_arch_type == -1) embeddedice_reg_arch_type = register_reg_arch_type(embeddedice_get_reg, embeddedice_set_reg_w_exec); - + if (arm7_9->has_vector_catch) num_regs = 17; else num_regs = 16; - + /* the actual registers are kept in two arrays */ reg_list = calloc(num_regs, sizeof(reg_t)); arch_info = calloc(num_regs, sizeof(embeddedice_reg_t)); - + /* fill in values for the reg cache */ reg_cache->name = "EmbeddedICE registers"; reg_cache->next = NULL; reg_cache->reg_list = reg_list; reg_cache->num_regs = num_regs; - + /* set up registers */ for (i = 0; i < num_regs; i++) { @@ -134,7 +134,7 @@ reg_cache_t* embeddedice_build_reg_cache(target_t *target, arm7_9_common_t *arm7 arch_info[i].addr = embeddedice_reg_arch_info[i]; arch_info[i].jtag_info = jtag_info; } - + /* identify EmbeddedICE version by reading DCC control register */ embeddedice_read_reg(®_list[EICE_COMMS_CTRL]); if ((retval=jtag_execute_queue())!=ERROR_OK) @@ -147,9 +147,9 @@ reg_cache_t* embeddedice_build_reg_cache(target_t *target, arm7_9_common_t *arm7 free(arch_info); return NULL; } - + eice_version = buf_get_u32(reg_list[EICE_COMMS_CTRL].value, 28, 4); - + switch (eice_version) { case 1: @@ -162,7 +162,7 @@ reg_cache_t* embeddedice_build_reg_cache(target_t *target, arm7_9_common_t *arm7 arm7_9->has_single_step = 1; break; case 3: - LOG_ERROR("EmbeddedICE version 3 detected, EmbeddedICE handling might be broken"); + LOG_ERROR("EmbeddedICE version 3 detected, EmbeddedICE handling might be broken"); reg_list[EICE_DBG_CTRL].size = 6; reg_list[EICE_DBG_STAT].size = 5; arm7_9->has_single_step = 1; @@ -193,7 +193,7 @@ reg_cache_t* embeddedice_build_reg_cache(target_t *target, arm7_9_common_t *arm7 default: LOG_ERROR("unknown EmbeddedICE version (comms ctrl: 0x%8.8x)", buf_get_u32(reg_list[EICE_COMMS_CTRL].value, 0, 32)); } - + return reg_cache; } @@ -202,12 +202,12 @@ int embeddedice_setup(target_t *target) int retval; armv4_5_common_t *armv4_5 = target->arch_info; arm7_9_common_t *arm7_9 = armv4_5->arch_info; - + /* explicitly disable monitor mode */ if (arm7_9->has_monitor_mode) { reg_t *dbg_ctrl = &arm7_9->eice_cache->reg_list[EICE_DBG_CTRL]; - + embeddedice_read_reg(dbg_ctrl); if ((retval=jtag_execute_queue())!=ERROR_OK) return retval; @@ -224,12 +224,12 @@ int embeddedice_get_reg(reg_t *reg) LOG_ERROR("BUG: error scheduling EmbeddedICE register read"); exit(-1); } - + if (jtag_execute_queue() != ERROR_OK) { LOG_ERROR("register read failed"); } - + return ERROR_OK; } @@ -243,9 +243,9 @@ int embeddedice_read_reg_w_check(reg_t *reg, u8* check_value, u8* check_mask) jtag_add_end_state(TAP_RTI); arm_jtag_scann(ice_reg->jtag_info, 0x2); - + arm_jtag_set_instr(ice_reg->jtag_info, ice_reg->jtag_info->intest_instr, NULL); - + fields[0].device = ice_reg->jtag_info->chain_pos; fields[0].num_bits = 32; fields[0].out_value = reg->value; @@ -255,7 +255,7 @@ int embeddedice_read_reg_w_check(reg_t *reg, u8* check_value, u8* check_mask) fields[0].in_check_mask = NULL; fields[0].in_handler = NULL; fields[0].in_handler_priv = NULL; - + fields[1].device = ice_reg->jtag_info->chain_pos; fields[1].num_bits = 5; fields[1].out_value = field1_out; @@ -277,18 +277,18 @@ int embeddedice_read_reg_w_check(reg_t *reg, u8* check_value, u8* check_mask) fields[2].in_check_mask = NULL; fields[2].in_handler = NULL; fields[2].in_handler_priv = NULL; - + jtag_add_dr_scan(3, fields, -1); - + fields[0].in_value = reg->value; jtag_set_check_value(fields+0, check_value, check_mask, NULL); - + /* when reading the DCC data register, leaving the address field set to * EICE_COMMS_DATA would read the register twice * reading the control register is safe */ buf_set_u32(fields[1].out_value, 0, 5, embeddedice_reg_arch_info[EICE_COMMS_CTRL]); - + jtag_add_dr_scan(3, fields, -1); return ERROR_OK; @@ -307,7 +307,7 @@ int embeddedice_receive(arm_jtag_t *jtag_info, u32 *data, u32 size) jtag_add_end_state(TAP_RTI); arm_jtag_scann(jtag_info, 0x2); arm_jtag_set_instr(jtag_info, jtag_info->intest_instr, NULL); - + fields[0].device = jtag_info->chain_pos; fields[0].num_bits = 32; fields[0].out_value = NULL; @@ -317,7 +317,7 @@ int embeddedice_receive(arm_jtag_t *jtag_info, u32 *data, u32 size) fields[0].in_check_mask = NULL; fields[0].in_handler = NULL; fields[0].in_handler_priv = NULL; - + fields[1].device = jtag_info->chain_pos; fields[1].num_bits = 5; fields[1].out_value = field1_out; @@ -339,9 +339,9 @@ int embeddedice_receive(arm_jtag_t *jtag_info, u32 *data, u32 size) fields[2].in_check_mask = NULL; fields[2].in_handler = NULL; fields[2].in_handler_priv = NULL; - + jtag_add_dr_scan(3, fields, -1); - + while (size > 0) { /* when reading the last item, set the register address to the DCC control reg, @@ -349,21 +349,21 @@ int embeddedice_receive(arm_jtag_t *jtag_info, u32 *data, u32 size) */ if (size == 1) buf_set_u32(fields[1].out_value, 0, 5, embeddedice_reg_arch_info[EICE_COMMS_CTRL]); - + fields[0].in_handler = arm_jtag_buf_to_u32; fields[0].in_handler_priv = data; jtag_add_dr_scan(3, fields, -1); - + data++; size--; } - + return jtag_execute_queue(); } int embeddedice_read_reg(reg_t *reg) { - return embeddedice_read_reg_w_check(reg, NULL, NULL); + return embeddedice_read_reg_w_check(reg, NULL, NULL); } int embeddedice_set_reg(reg_t *reg, u32 value) @@ -373,18 +373,18 @@ int embeddedice_set_reg(reg_t *reg, u32 value) LOG_ERROR("BUG: error scheduling EmbeddedICE register write"); exit(-1); } - + buf_set_u32(reg->value, 0, reg->size, value); reg->valid = 1; reg->dirty = 0; - + return ERROR_OK; } int embeddedice_set_reg_w_exec(reg_t *reg, u8 *buf) { embeddedice_set_reg(reg, buf_get_u32(buf, 0, reg->size)); - + if (jtag_execute_queue() != ERROR_OK) { LOG_ERROR("register write failed"); @@ -398,15 +398,15 @@ int embeddedice_write_reg(reg_t *reg, u32 value) embeddedice_reg_t *ice_reg = reg->arch_info; LOG_DEBUG("%i: 0x%8.8x", ice_reg->addr, value); - + jtag_add_end_state(TAP_RTI); arm_jtag_scann(ice_reg->jtag_info, 0x2); - + arm_jtag_set_instr(ice_reg->jtag_info, ice_reg->jtag_info->intest_instr, NULL); u8 reg_addr = ice_reg->addr & 0x1f; embeddedice_write_reg_inner(ice_reg->jtag_info->chain_pos, reg_addr, value); - + return ERROR_OK; } @@ -548,3 +548,14 @@ int embeddedice_handshake(arm_jtag_t *jtag_info, int hsbit, u32 timeout) return ERROR_TARGET_TIMEOUT; } + +/* this is the inner loop of the open loop DCC write of data to target */ +void MINIDRIVER(embeddedice_write_dcc)(int chain_pos, int reg_addr, u8 *buffer, int little, int count) +{ + int i; + for (i = 0; i < count; i++) + { + embeddedice_write_reg_inner(chain_pos, reg_addr, fast_target_buffer_get_u32(buffer, little)); + buffer += 4; + } +} diff --git a/src/target/embeddedice.h b/src/target/embeddedice.h index 1ab667c1..a5929e18 100644 --- a/src/target/embeddedice.h +++ b/src/target/embeddedice.h @@ -52,7 +52,7 @@ enum enum { EICE_DBG_CONTROL_ICEDIS = 5, - EICE_DBG_CONTROL_MONEN = 4, + EICE_DBG_CONTROL_MONEN = 4, EICE_DBG_CONTROL_INTDIS = 2, EICE_DBG_CONTROL_DBGRQ = 1, EICE_DBG_CONTROL_DBGACK = 0, @@ -105,24 +105,26 @@ extern int embeddedice_receive(arm_jtag_t *jtag_info, u32 *data, u32 size); extern int embeddedice_send(arm_jtag_t *jtag_info, u32 *data, u32 size); extern int embeddedice_handshake(arm_jtag_t *jtag_info, int hsbit, u32 timeout); -/* If many embeddedice_write_reg() follow eachother, then the >1 invocations can be this faster version of +/* If many embeddedice_write_reg() follow eachother, then the >1 invocations can be this faster version of * embeddedice_write_reg */ static const int embeddedice_num_bits[]={32,5,1}; static __inline__ void embeddedice_write_reg_inner(int chain_pos, int reg_addr, u32 value) { u32 values[3]; - + values[0]=value; values[1]=reg_addr; values[2]=1; - - jtag_add_dr_out(chain_pos, + + jtag_add_dr_out(chain_pos, 3, embeddedice_num_bits, values, -1); } +void embeddedice_write_dcc(int chain_pos, int reg_addr, u8 *buffer, int little, int count); + #endif /* EMBEDDED_ICE_H */ |