diff options
Diffstat (limited to 'src/target/aarch64.c')
-rw-r--r-- | src/target/aarch64.c | 25 |
1 files changed, 3 insertions, 22 deletions
diff --git a/src/target/aarch64.c b/src/target/aarch64.c index 110f8dc..b716122 100644 --- a/src/target/aarch64.c +++ b/src/target/aarch64.c @@ -538,7 +538,9 @@ static int aarch64_internal_restart(struct target *target, bool slave_pe) return retval; if ((dscr & DSCR_ITE) == 0) - LOG_ERROR("DSCR InstrCompl must be set before leaving debug!"); + LOG_ERROR("DSCR.ITE must be set before leaving debug!"); + if ((dscr & DSCR_ERR) != 0) + LOG_ERROR("DSCR.ERR must be cleared before leaving debug!"); /* make sure to acknowledge the halt event before resuming */ retval = mem_ap_write_atomic_u32(armv8->debug_ap, @@ -709,10 +711,6 @@ static int aarch64_post_debug_entry(struct target *target) struct armv8_common *armv8 = &aarch64->armv8_common; int retval; - /* clear sticky errors */ - mem_ap_write_atomic_u32(armv8->debug_ap, - armv8->debug_base + CPUV8_DBG_DRCR, DRCR_CSE); - switch (armv8->arm.core_mode) { case ARMV8_64_EL0T: armv8_dpm_modeswitch(&armv8->dpm, ARMV8_64_EL1H); @@ -1389,13 +1387,6 @@ static int aarch64_write_apb_ap_memory(struct target *target, reg = armv8_reg_current(arm, 0); reg->dirty = true; - /* clear any abort */ - retval = mem_ap_write_atomic_u32(armv8->debug_ap, - armv8->debug_base + CPUV8_DBG_DRCR, DRCR_CSE); - if (retval != ERROR_OK) - return retval; - - /* This algorithm comes from DDI0487A.g, chapter J9.1 */ /* The algorithm only copies 32 bit words, so the buffer @@ -1486,8 +1477,6 @@ static int aarch64_write_apb_ap_memory(struct target *target, if (dscr & (DSCR_ERR | DSCR_SYS_ERROR_PEND)) { /* Abort occurred - clear it and exit */ LOG_ERROR("abort occurred - dscr = 0x%08" PRIx32, dscr); - mem_ap_write_atomic_u32(armv8->debug_ap, - armv8->debug_base + CPUV8_DBG_DRCR, 1<<2); armv8_dpm_handle_exception(dpm); goto error_free_buff_w; } @@ -1547,12 +1536,6 @@ static int aarch64_read_apb_ap_memory(struct target *target, reg = armv8_reg_current(arm, 0); reg->dirty = true; - /* clear any abort */ - retval = mem_ap_write_atomic_u32(armv8->debug_ap, - armv8->debug_base + CPUV8_DBG_DRCR, DRCR_CSE); - if (retval != ERROR_OK) - goto error_free_buff_r; - /* Read DSCR */ retval = mem_ap_read_atomic_u32(armv8->debug_ap, armv8->debug_base + CPUV8_DBG_DSCR, &dscr); @@ -1652,8 +1635,6 @@ static int aarch64_read_apb_ap_memory(struct target *target, if (dscr & (DSCR_ERR | DSCR_SYS_ERROR_PEND)) { /* Abort occurred - clear it and exit */ LOG_ERROR("abort occurred - dscr = 0x%08" PRIx32, dscr); - mem_ap_write_atomic_u32(armv8->debug_ap, - armv8->debug_base + CPUV8_DBG_DRCR, DRCR_CSE); armv8_dpm_handle_exception(dpm); goto error_free_buff_r; } |