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| author | Simon Glass <sjg@chromium.org> | 2012-06-03 07:33:17 -0700 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-06-15 13:39:22 -0700 |
| commit | 9f2e621d8032199b727918f04430d5cd0951c0c3 (patch) | |
| tree | 2adfa391c2fedad7ab015a0d59cddeec0a0c4dcd /core/cortex-m/watchdog.c | |
| parent | 9c08e8994e8e09709b096a7e6f1cb17faa0ce52c (diff) | |
| download | chrome-ec-9f2e621d8032199b727918f04430d5cd0951c0c3.tar.gz | |
Move watchdog_trace() into the generic watchdog file
We want this function to be available for all chips, so move it into a
generic place.
The task_disable_irq() from the LM4 version can be left in
watchdog_check(), to keep the watchdog_trace() function generic.
BUG=chrome-os-partner:10145
TEST=build for all boards
Change-Id: I98c60ce5958f1498b84a233ef04290a68a7838c5
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/24397
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Diffstat (limited to 'core/cortex-m/watchdog.c')
| -rw-r--r-- | core/cortex-m/watchdog.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/core/cortex-m/watchdog.c b/core/cortex-m/watchdog.c index e0a58953fb..3ad89e94ab 100644 --- a/core/cortex-m/watchdog.c +++ b/core/cortex-m/watchdog.c @@ -5,10 +5,48 @@ /* Watchdog common code */ +#include "board.h" +#include "common.h" +#include "config.h" +#include "registers.h" +#include "task.h" #include "timer.h" +#include "uart.h" #include "watchdog.h" +void watchdog_trace(uint32_t excep_lr, uint32_t excep_sp) +{ + uint32_t psp; + uint32_t *stack; + + asm("mrs %0, psp" : "=r"(psp)); + if ((excep_lr & 0xf) == 1) { + /* we were already in exception context */ + stack = (uint32_t *)excep_sp; + } else { + /* we were in task context */ + stack = (uint32_t *)psp; + } + + uart_printf("### WATCHDOG PC=%08x / LR=%08x / pSP=%08x ", + stack[6], stack[5], psp); + if ((excep_lr & 0xf) == 1) + uart_puts("(exc) ###\n"); + else + uart_printf("(task %d) ###\n", task_from_addr(psp)); + /* Ensure this debug message is always flushed to the UART */ + uart_emergency_flush(); + + /* If we are blocked in a high priority IT handler, the following debug + * messages might not appear but they are useless in that situation. */ + timer_print_info(); + uart_emergency_flush(); + task_print_list(); + uart_emergency_flush(); +} + + /* Low priority task to reload the watchdog */ void watchdog_task(void) { |