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cortex a8: add error propagation for poll/resume 

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>
This commit is contained in:
Øyvind Harboe 2010-06-21 14:26:19 +02:00
parent 59bf45be1f
commit 4d238c7f91
1 changed files with 15 additions and 5 deletions
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20
src/target/cortex_a8.c
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@ -98,12 +98,15 @@ static int cortex_a8_init_debug_access(struct target *target)
/* 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(swjdp, armv7a->debug_base + CPUDBG_PRSR, &dummy);
if (retval != ERROR_OK)
return retval;
/* Enabling of instruction execution in debug mode is done in debug_entry code */
/* Resync breakpoint registers */
/* Since this is likley called from init or reset, update targtet state information*/
cortex_a8_poll(target);
retval = cortex_a8_poll(target);
return retval;
}
@ -1005,6 +1008,7 @@ static int cortex_a8_step(struct target *target, int current, uint32_t address,
struct breakpoint *breakpoint = NULL;
struct breakpoint stepbreakpoint;
struct reg *r;
int retval;
int timeout = 100;
@ -1048,15 +1052,19 @@ static int cortex_a8_step(struct target *target, int current, uint32_t address,
target->debug_reason = DBG_REASON_SINGLESTEP;
cortex_a8_resume(target, 1, address, 0, 0);
retval = cortex_a8_resume(target, 1, address, 0, 0);
if (retval != ERROR_OK)
return retval;
while (target->state != TARGET_HALTED)
{
cortex_a8_poll(target);
retval = cortex_a8_poll(target);
if (retval != ERROR_OK)
return retval;
if (--timeout == 0)
{
LOG_WARNING("timeout waiting for target halt");
break;
LOG_ERROR("timeout waiting for target halt");
return ERROR_FAIL;
}
}
@ -1313,6 +1321,8 @@ static int cortex_a8_deassert_reset(struct target *target)
jtag_add_reset(0, 0);
retval = cortex_a8_poll(target);
if (retval != ERROR_OK)
return retval;
if (target->reset_halt) {
if (target->state != TARGET_HALTED) {