X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Ftarget%2Fcortex_a.c;h=8ed85ac881bce27f4c8eac8d78b82660ee0aa2f4;hb=refs%2Fchanges%2F77%2F2877%2F4;hp=d1590f65f59f77cd67cb13f447e3f8519e313079;hpb=d0e763ac7ef6aa17b17bd00ccdfbccfb4eacda69;p=openocd.git diff --git a/src/target/cortex_a.c b/src/target/cortex_a.c index d1590f65f5..8ed85ac881 100644 --- a/src/target/cortex_a.c +++ b/src/target/cortex_a.c @@ -53,6 +53,8 @@ #include "target_request.h" #include "target_type.h" #include "arm_opcodes.h" +#include "arm_semihosting.h" +#include "jtag/swd.h" #include static int cortex_a_poll(struct target *target); @@ -73,7 +75,7 @@ static int cortex_a_dap_write_coreregister_u32(struct target *target, static int cortex_a_mmu(struct target *target, int *enabled); static int cortex_a_mmu_modify(struct target *target, int enable); static int cortex_a_virt2phys(struct target *target, - uint32_t virt, uint32_t *phys); + target_addr_t virt, target_addr_t *phys); static int cortex_a_read_cpu_memory(struct target *target, uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer); @@ -194,32 +196,6 @@ static int cortex_a_mmu_modify(struct target *target, int enable) return retval; } -/* - * Cortex-A Basic debug access, very low level assumes state is saved - */ -static int cortex_a8_init_debug_access(struct target *target) -{ - struct armv7a_common *armv7a = target_to_armv7a(target); - int retval; - - LOG_DEBUG(" "); - - /* Unlocking the debug registers for modification - * The debugport might be uninitialised so try twice */ - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_LOCKACCESS, 0xC5ACCE55); - if (retval != ERROR_OK) { - /* try again */ - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_LOCKACCESS, 0xC5ACCE55); - if (retval == ERROR_OK) - LOG_USER( - "Locking debug access failed on first, but succeeded on second try."); - } - - return retval; -} - /* * Cortex-A Basic debug access, very low level assumes state is saved */ @@ -227,62 +203,30 @@ static int cortex_a_init_debug_access(struct target *target) { struct armv7a_common *armv7a = target_to_armv7a(target); int retval; - uint32_t dbg_osreg; - uint32_t cortex_part_num; - struct cortex_a_common *cortex_a = target_to_cortex_a(target); - - LOG_DEBUG(" "); - cortex_part_num = (cortex_a->cpuid & CORTEX_A_MIDR_PARTNUM_MASK) >> - CORTEX_A_MIDR_PARTNUM_SHIFT; - - switch (cortex_part_num) { - case CORTEX_A7_PARTNUM: - case CORTEX_A15_PARTNUM: - retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_OSLSR, - &dbg_osreg); - if (retval != ERROR_OK) - return retval; - - LOG_DEBUG("DBGOSLSR 0x%" PRIx32, dbg_osreg); - - if (dbg_osreg & CPUDBG_OSLAR_LK_MASK) - /* Unlocking the DEBUG OS registers for modification */ - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_OSLAR, - 0); - break; - - case CORTEX_A5_PARTNUM: - case CORTEX_A8_PARTNUM: - case CORTEX_A9_PARTNUM: - default: - retval = cortex_a8_init_debug_access(target); - } - - if (retval != ERROR_OK) - return retval; - /* Clear Sticky Power Down status Bit in PRSR to enable access to - the registers in the Core Power Domain */ - retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_PRSR, &dbg_osreg); - LOG_DEBUG("target->coreid %" PRId32 " DBGPRSR 0x%" PRIx32, target->coreid, dbg_osreg); + /* lock memory-mapped access to debug registers to prevent + * software interference */ + retval = mem_ap_write_u32(armv7a->debug_ap, + armv7a->debug_base + CPUDBG_LOCKACCESS, 0); if (retval != ERROR_OK) return retval; /* Disable cacheline fills and force cache write-through in debug state */ - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, + retval = mem_ap_write_u32(armv7a->debug_ap, armv7a->debug_base + CPUDBG_DSCCR, 0); if (retval != ERROR_OK) return retval; /* Disable TLB lookup and refill/eviction in debug state */ - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, + retval = mem_ap_write_u32(armv7a->debug_ap, armv7a->debug_base + CPUDBG_DSMCR, 0); if (retval != ERROR_OK) return retval; + retval = dap_run(armv7a->debug_ap->dap); + if (retval != ERROR_OK) + return retval; + /* Enabling of instruction execution in debug mode is done in debug_entry code */ /* Resync breakpoint registers */ @@ -852,7 +796,8 @@ static int cortex_a_halt_smp(struct target *target) head = target->head; while (head != (struct target_list *)NULL) { curr = head->target; - if ((curr != target) && (curr->state != TARGET_HALTED)) + if ((curr != target) && (curr->state != TARGET_HALTED) + && target_was_examined(curr)) retval += cortex_a_halt(curr); head = head->next; } @@ -915,6 +860,10 @@ static int cortex_a_poll(struct target *target) if (retval != ERROR_OK) return retval; } + + if (arm_semihosting(target, &retval) != 0) + return retval; + target_call_event_callbacks(target, TARGET_EVENT_HALTED); } @@ -934,12 +883,8 @@ static int cortex_a_poll(struct target *target) TARGET_EVENT_DEBUG_HALTED); } } - } else if (DSCR_RUN_MODE(dscr) == DSCR_CORE_RESTARTED) + } else target->state = TARGET_RUNNING; - else { - LOG_DEBUG("Unknown target state dscr = 0x%08" PRIx32, dscr); - target->state = TARGET_UNKNOWN; - } return retval; } @@ -992,7 +937,7 @@ static int cortex_a_halt(struct target *target) } static int cortex_a_internal_restore(struct target *target, int current, - uint32_t *address, int handle_breakpoints, int debug_execution) + target_addr_t *address, int handle_breakpoints, int debug_execution) { struct armv7a_common *armv7a = target_to_armv7a(target); struct arm *arm = &armv7a->arm; @@ -1047,6 +992,9 @@ static int cortex_a_internal_restore(struct target *target, int current, case ARM_STATE_JAZELLE: LOG_ERROR("How do I resume into Jazelle state??"); return ERROR_FAIL; + case ARM_STATE_AARCH64: + LOG_ERROR("Shoudn't be in AARCH64 state"); + return ERROR_FAIL; } LOG_DEBUG("resume pc = 0x%08" PRIx32, resume_pc); buf_set_u32(arm->pc->value, 0, 32, resume_pc); @@ -1147,11 +1095,12 @@ static int cortex_a_restore_smp(struct target *target, int handle_breakpoints) int retval = 0; struct target_list *head; struct target *curr; - uint32_t address; + target_addr_t address; head = target->head; while (head != (struct target_list *)NULL) { curr = head->target; - if ((curr != target) && (curr->state != TARGET_RUNNING)) { + if ((curr != target) && (curr->state != TARGET_RUNNING) + && target_was_examined(curr)) { /* resume current address , not in step mode */ retval += cortex_a_internal_restore(curr, 1, &address, handle_breakpoints, 0); @@ -1164,7 +1113,7 @@ static int cortex_a_restore_smp(struct target *target, int handle_breakpoints) } static int cortex_a_resume(struct target *target, int current, - uint32_t address, int handle_breakpoints, int debug_execution) + target_addr_t address, int handle_breakpoints, int debug_execution) { int retval = 0; /* dummy resume for smp toggle in order to reduce gdb impact */ @@ -1188,11 +1137,11 @@ static int cortex_a_resume(struct target *target, int current, if (!debug_execution) { target->state = TARGET_RUNNING; target_call_event_callbacks(target, TARGET_EVENT_RESUMED); - LOG_DEBUG("target resumed at 0x%" PRIx32, address); + LOG_DEBUG("target resumed at " TARGET_ADDR_FMT, address); } else { target->state = TARGET_DEBUG_RUNNING; target_call_event_callbacks(target, TARGET_EVENT_DEBUG_RESUMED); - LOG_DEBUG("target debug resumed at 0x%" PRIx32, address); + LOG_DEBUG("target debug resumed at " TARGET_ADDR_FMT, address); } return ERROR_OK; @@ -1201,7 +1150,7 @@ static int cortex_a_resume(struct target *target, int current, static int cortex_a_debug_entry(struct target *target) { int i; - uint32_t regfile[16], cpsr, dscr; + uint32_t regfile[16], cpsr, spsr, dscr; int retval = ERROR_OK; struct working_area *regfile_working_area = NULL; struct cortex_a_common *cortex_a = target_to_cortex_a(target); @@ -1250,6 +1199,7 @@ static int cortex_a_debug_entry(struct target *target) if (cortex_a->fast_reg_read) target_alloc_working_area(target, 64, ®file_working_area); + /* First load register acessible through core debug port*/ if (!regfile_working_area) retval = arm_dpm_read_current_registers(&armv7a->dpm); @@ -1294,6 +1244,19 @@ static int cortex_a_debug_entry(struct target *target) reg->dirty = reg->valid; } + if (arm->spsr) { + /* read Saved PSR */ + retval = cortex_a_dap_read_coreregister_u32(target, &spsr, 17); + /* store current spsr */ + if (retval != ERROR_OK) + return retval; + + reg = arm->spsr; + buf_set_u32(reg->value, 0, 32, spsr); + reg->valid = 1; + reg->dirty = 0; + } + #if 0 /* TODO, Move this */ uint32_t cp15_control_register, cp15_cacr, cp15_nacr; @@ -1384,7 +1347,7 @@ int cortex_a_set_dscr_bits(struct target *target, unsigned long bit_mask, unsign return retval; } -static int cortex_a_step(struct target *target, int current, uint32_t address, +static int cortex_a_step(struct target *target, int current, target_addr_t address, int handle_breakpoints) { struct cortex_a_common *cortex_a = target_to_cortex_a(target); @@ -1537,10 +1500,22 @@ static int cortex_a_set_breakpoint(struct target *target, brp_list[brp_i].value); } else if (breakpoint->type == BKPT_SOFT) { uint8_t code[4]; + /* length == 2: Thumb breakpoint */ if (breakpoint->length == 2) buf_set_u32(code, 0, 32, ARMV5_T_BKPT(0x11)); else + /* length == 3: Thumb-2 breakpoint, actual encoding is + * a regular Thumb BKPT instruction but we replace a + * 32bit Thumb-2 instruction, so fix-up the breakpoint + * length + */ + if (breakpoint->length == 3) { + buf_set_u32(code, 0, 32, ARMV5_T_BKPT(0x11)); + breakpoint->length = 4; + } else + /* length == 4, normal ARM breakpoint */ buf_set_u32(code, 0, 32, ARMV5_BKPT(0x11)); + retval = target_read_memory(target, breakpoint->address & 0xFFFFFFFE, breakpoint->length, 1, @@ -1910,16 +1885,23 @@ static int cortex_a_assert_reset(struct target *target) /* REVISIT handle "pulls" cases, if there's * hardware that needs them to work. */ - if (target->reset_halt) - if (jtag_get_reset_config() & RESET_SRST_NO_GATING) - jtag_add_reset(0, 1); + + /* + * FIXME: fix reset when transport is SWD. This is a temporary + * work-around for release v0.10 that is not intended to stay! + */ + if (transport_is_swd() || + (target->reset_halt && (jtag_get_reset_config() & RESET_SRST_NO_GATING))) + jtag_add_reset(0, 1); + } else { LOG_ERROR("%s: how to reset?", target_name(target)); return ERROR_FAIL; } /* registers are now invalid */ - register_cache_invalidate(armv7a->arm.core_cache); + if (target_was_examined(target)) + register_cache_invalidate(armv7a->arm.core_cache); target->state = TARGET_RESET; @@ -1935,17 +1917,22 @@ static int cortex_a_deassert_reset(struct target *target) /* be certain SRST is off */ jtag_add_reset(0, 0); - retval = cortex_a_poll(target); - if (retval != ERROR_OK) - return retval; + if (target_was_examined(target)) { + retval = cortex_a_poll(target); + if (retval != ERROR_OK) + return retval; + } if (target->reset_halt) { if (target->state != TARGET_HALTED) { LOG_WARNING("%s: ran after reset and before halt ...", target_name(target)); - retval = target_halt(target); - if (retval != ERROR_OK) - return retval; + if (target_was_examined(target)) { + retval = target_halt(target); + if (retval != ERROR_OK) + return retval; + } else + target->state = TARGET_UNKNOWN; } } @@ -2667,7 +2654,7 @@ out: */ static int cortex_a_read_phys_memory(struct target *target, - uint32_t address, uint32_t size, + target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer) { struct armv7a_common *armv7a = target_to_armv7a(target); @@ -2678,7 +2665,7 @@ static int cortex_a_read_phys_memory(struct target *target, if (!count || !buffer) return ERROR_COMMAND_SYNTAX_ERROR; - LOG_DEBUG("Reading memory at real address 0x%" PRIx32 "; size %" PRId32 "; count %" PRId32, + LOG_DEBUG("Reading memory at real address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32, address, size, count); if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap->ap_num)) @@ -2692,14 +2679,14 @@ static int cortex_a_read_phys_memory(struct target *target, return retval; } -static int cortex_a_read_memory(struct target *target, uint32_t address, +static int cortex_a_read_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer) { int retval; /* cortex_a handles unaligned memory access */ - LOG_DEBUG("Reading memory at address 0x%" PRIx32 "; size %" PRId32 "; count %" PRId32, address, - size, count); + LOG_DEBUG("Reading memory at address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32, + address, size, count); cortex_a_prep_memaccess(target, 0); retval = cortex_a_read_cpu_memory(target, address, size, count, buffer); @@ -2708,11 +2695,11 @@ static int cortex_a_read_memory(struct target *target, uint32_t address, return retval; } -static int cortex_a_read_memory_ahb(struct target *target, uint32_t address, +static int cortex_a_read_memory_ahb(struct target *target, target_addr_t address, uint32_t size, uint32_t count, uint8_t *buffer) { int mmu_enabled = 0; - uint32_t virt, phys; + target_addr_t virt, phys; int retval; struct armv7a_common *armv7a = target_to_armv7a(target); struct adiv5_dap *swjdp = armv7a->arm.dap; @@ -2722,8 +2709,8 @@ static int cortex_a_read_memory_ahb(struct target *target, uint32_t address, return target_read_memory(target, address, size, count, buffer); /* cortex_a handles unaligned memory access */ - LOG_DEBUG("Reading memory at address 0x%" PRIx32 "; size %" PRId32 "; count %" PRId32, address, - size, count); + LOG_DEBUG("Reading memory at address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32, + address, size, count); /* determine if MMU was enabled on target stop */ if (!armv7a->is_armv7r) { @@ -2738,7 +2725,8 @@ static int cortex_a_read_memory_ahb(struct target *target, uint32_t address, if (retval != ERROR_OK) return retval; - LOG_DEBUG("Reading at virtual address. Translating v:0x%" PRIx32 " to r:0x%" PRIx32, + LOG_DEBUG("Reading at virtual address. " + "Translating v:" TARGET_ADDR_FMT " to r:" TARGET_ADDR_FMT, virt, phys); address = phys; } @@ -2752,7 +2740,7 @@ static int cortex_a_read_memory_ahb(struct target *target, uint32_t address, } static int cortex_a_write_phys_memory(struct target *target, - uint32_t address, uint32_t size, + target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer) { struct armv7a_common *armv7a = target_to_armv7a(target); @@ -2763,8 +2751,8 @@ static int cortex_a_write_phys_memory(struct target *target, if (!count || !buffer) return ERROR_COMMAND_SYNTAX_ERROR; - LOG_DEBUG("Writing memory to real address 0x%" PRIx32 "; size %" PRId32 "; count %" PRId32, address, - size, count); + LOG_DEBUG("Writing memory to real address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32, + address, size, count); if (armv7a->memory_ap_available && (apsel == armv7a->memory_ap->ap_num)) return mem_ap_write_buf(armv7a->memory_ap, buffer, size, count, address); @@ -2777,14 +2765,14 @@ static int cortex_a_write_phys_memory(struct target *target, return retval; } -static int cortex_a_write_memory(struct target *target, uint32_t address, +static int cortex_a_write_memory(struct target *target, target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer) { int retval; /* cortex_a handles unaligned memory access */ - LOG_DEBUG("Writing memory at address 0x%" PRIx32 "; size %" PRId32 "; count %" PRId32, address, - size, count); + LOG_DEBUG("Writing memory at address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32, + address, size, count); /* memory writes bypass the caches, must flush before writing */ armv7a_cache_auto_flush_on_write(target, address, size * count); @@ -2795,11 +2783,11 @@ static int cortex_a_write_memory(struct target *target, uint32_t address, return retval; } -static int cortex_a_write_memory_ahb(struct target *target, uint32_t address, +static int cortex_a_write_memory_ahb(struct target *target, target_addr_t address, uint32_t size, uint32_t count, const uint8_t *buffer) { int mmu_enabled = 0; - uint32_t virt, phys; + target_addr_t virt, phys; int retval; struct armv7a_common *armv7a = target_to_armv7a(target); struct adiv5_dap *swjdp = armv7a->arm.dap; @@ -2809,8 +2797,8 @@ static int cortex_a_write_memory_ahb(struct target *target, uint32_t address, return target_write_memory(target, address, size, count, buffer); /* cortex_a handles unaligned memory access */ - LOG_DEBUG("Writing memory at address 0x%" PRIx32 "; size %" PRId32 "; count %" PRId32, address, - size, count); + LOG_DEBUG("Writing memory at address " TARGET_ADDR_FMT "; size %" PRId32 "; count %" PRId32, + address, size, count); /* determine if MMU was enabled on target stop */ if (!armv7a->is_armv7r) { @@ -2825,7 +2813,8 @@ static int cortex_a_write_memory_ahb(struct target *target, uint32_t address, if (retval != ERROR_OK) return retval; - LOG_DEBUG("Writing to virtual address. Translating v:0x%" PRIx32 " to r:0x%" PRIx32, + LOG_DEBUG("Writing to virtual address. " + "Translating v:" TARGET_ADDR_FMT " to r:" TARGET_ADDR_FMT, virt, phys); address = phys; @@ -2839,7 +2828,7 @@ static int cortex_a_write_memory_ahb(struct target *target, uint32_t address, return retval; } -static int cortex_a_read_buffer(struct target *target, uint32_t address, +static int cortex_a_read_buffer(struct target *target, target_addr_t address, uint32_t count, uint8_t *buffer) { uint32_t size; @@ -2873,7 +2862,7 @@ static int cortex_a_read_buffer(struct target *target, uint32_t address, return ERROR_OK; } -static int cortex_a_write_buffer(struct target *target, uint32_t address, +static int cortex_a_write_buffer(struct target *target, target_addr_t address, uint32_t count, const uint8_t *buffer) { uint32_t size; @@ -2953,9 +2942,10 @@ static int cortex_a_examine_first(struct target *target) struct cortex_a_common *cortex_a = target_to_cortex_a(target); struct armv7a_common *armv7a = &cortex_a->armv7a_common; struct adiv5_dap *swjdp = armv7a->arm.dap; + int i; int retval = ERROR_OK; - uint32_t didr, ctypr, ttypr, cpuid, dbg_osreg; + uint32_t didr, cpuid, dbg_osreg; retval = dap_dp_init(swjdp); if (retval != ERROR_OK) { @@ -3017,79 +3007,69 @@ static int cortex_a_examine_first(struct target *target) armv7a->debug_base = target->dbgbase; retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_CPUID, &cpuid); - if (retval != ERROR_OK) - return retval; - - retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_CPUID, &cpuid); - if (retval != ERROR_OK) { - LOG_DEBUG("Examine %s failed", "CPUID"); - return retval; - } - - retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_CTYPR, &ctypr); - if (retval != ERROR_OK) { - LOG_DEBUG("Examine %s failed", "CTYPR"); - return retval; - } - - retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_TTYPR, &ttypr); + armv7a->debug_base + CPUDBG_DIDR, &didr); if (retval != ERROR_OK) { - LOG_DEBUG("Examine %s failed", "TTYPR"); + LOG_DEBUG("Examine %s failed", "DIDR"); return retval; } retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_DIDR, &didr); + armv7a->debug_base + CPUDBG_CPUID, &cpuid); if (retval != ERROR_OK) { - LOG_DEBUG("Examine %s failed", "DIDR"); + LOG_DEBUG("Examine %s failed", "CPUID"); return retval; } - LOG_DEBUG("cpuid = 0x%08" PRIx32, cpuid); - LOG_DEBUG("ctypr = 0x%08" PRIx32, ctypr); - LOG_DEBUG("ttypr = 0x%08" PRIx32, ttypr); LOG_DEBUG("didr = 0x%08" PRIx32, didr); + LOG_DEBUG("cpuid = 0x%08" PRIx32, cpuid); - cortex_a->cpuid = cpuid; - cortex_a->ctypr = ctypr; - cortex_a->ttypr = ttypr; cortex_a->didr = didr; + cortex_a->cpuid = cpuid; - /* Unlocking the debug registers */ - if ((cpuid & CORTEX_A_MIDR_PARTNUM_MASK) >> CORTEX_A_MIDR_PARTNUM_SHIFT == - CORTEX_A15_PARTNUM) { - - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_OSLAR, - 0); - - if (retval != ERROR_OK) - return retval; + retval = mem_ap_read_atomic_u32(armv7a->debug_ap, + armv7a->debug_base + CPUDBG_PRSR, &dbg_osreg); + if (retval != ERROR_OK) + return retval; + LOG_DEBUG("target->coreid %" PRId32 " DBGPRSR 0x%" PRIx32, target->coreid, dbg_osreg); + if ((dbg_osreg & PRSR_POWERUP_STATUS) == 0) { + LOG_ERROR("target->coreid %" PRId32 " powered down!", target->coreid); + target->state = TARGET_UNKNOWN; /* TARGET_NO_POWER? */ + return ERROR_TARGET_INIT_FAILED; } - /* Unlocking the debug registers */ - if ((cpuid & CORTEX_A_MIDR_PARTNUM_MASK) >> CORTEX_A_MIDR_PARTNUM_SHIFT == - CORTEX_A7_PARTNUM) { - retval = mem_ap_write_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_OSLAR, - 0); + if (dbg_osreg & PRSR_STICKY_RESET_STATUS) + LOG_DEBUG("target->coreid %" PRId32 " was reset!", target->coreid); - if (retval != ERROR_OK) - return retval; - - } + /* Read DBGOSLSR and check if OSLK is implemented */ retval = mem_ap_read_atomic_u32(armv7a->debug_ap, - armv7a->debug_base + CPUDBG_PRSR, &dbg_osreg); - + armv7a->debug_base + CPUDBG_OSLSR, &dbg_osreg); if (retval != ERROR_OK) return retval; + LOG_DEBUG("target->coreid %" PRId32 " DBGOSLSR 0x%" PRIx32, target->coreid, dbg_osreg); - LOG_DEBUG("target->coreid %" PRId32 " DBGPRSR 0x%" PRIx32, target->coreid, dbg_osreg); + /* check if OS Lock is implemented */ + if ((dbg_osreg & OSLSR_OSLM) == OSLSR_OSLM0 || (dbg_osreg & OSLSR_OSLM) == OSLSR_OSLM1) { + /* check if OS Lock is set */ + if (dbg_osreg & OSLSR_OSLK) { + LOG_DEBUG("target->coreid %" PRId32 " OSLock set! Trying to unlock", target->coreid); + + retval = mem_ap_write_atomic_u32(armv7a->debug_ap, + armv7a->debug_base + CPUDBG_OSLAR, + 0); + if (retval == ERROR_OK) + retval = mem_ap_read_atomic_u32(armv7a->debug_ap, + armv7a->debug_base + CPUDBG_OSLSR, &dbg_osreg); + + /* if we fail to access the register or cannot reset the OSLK bit, bail out */ + if (retval != ERROR_OK || (dbg_osreg & OSLSR_OSLK) != 0) { + LOG_ERROR("target->coreid %" PRId32 " OSLock sticky, core not powered?", + target->coreid); + target->state = TARGET_UNKNOWN; /* TARGET_NO_POWER? */ + return ERROR_TARGET_INIT_FAILED; + } + } + } armv7a->arm.core_type = ARM_MODE_MON; @@ -3149,6 +3129,7 @@ static int cortex_a_init_target(struct command_context *cmd_ctx, struct target *target) { /* examine_first() does a bunch of this */ + arm_semihosting_init(target); return ERROR_OK; } @@ -3238,7 +3219,7 @@ static int cortex_a_mmu(struct target *target, int *enabled) } static int cortex_a_virt2phys(struct target *target, - uint32_t virt, uint32_t *phys) + target_addr_t virt, target_addr_t *phys) { int retval = ERROR_FAIL; struct armv7a_common *armv7a = target_to_armv7a(target); @@ -3256,7 +3237,8 @@ static int cortex_a_virt2phys(struct target *target, retval = cortex_a_mmu_modify(target, 1); if (retval != ERROR_OK) goto done; - retval = armv7a_mmu_translate_va_pa(target, virt, phys, 1); + retval = armv7a_mmu_translate_va_pa(target, (uint32_t)virt, + (uint32_t *)phys, 1); } done: return retval; @@ -3511,13 +3493,6 @@ struct target_type cortexa_target = { }; static const struct command_registration cortex_r4_exec_command_handlers[] = { - { - .name = "cache_info", - .handler = cortex_a_handle_cache_info_command, - .mode = COMMAND_EXEC, - .help = "display information about target caches", - .usage = "", - }, { .name = "dbginit", .handler = cortex_a_handle_dbginit_command, @@ -3540,7 +3515,7 @@ static const struct command_registration cortex_r4_command_handlers[] = { .chain = arm_command_handlers, }, { - .chain = armv7a_command_handlers, + .chain = dap_command_handlers, }, { .name = "cortex_r4", @@ -3568,8 +3543,8 @@ struct target_type cortexr4_target = { /* REVISIT allow exporting VFP3 registers ... */ .get_gdb_reg_list = arm_get_gdb_reg_list, - .read_memory = cortex_a_read_memory, - .write_memory = cortex_a_write_memory, + .read_memory = cortex_a_read_phys_memory, + .write_memory = cortex_a_write_phys_memory, .checksum_memory = arm_checksum_memory, .blank_check_memory = arm_blank_check_memory,