sc7180: report hardware watchdog reset after reboot

add WATCHDOG_TOMBSTONE in memlayout.ld

Change-Id: I57ece39ff3d49f2bab259cbd92ab039a49323119
Signed-off-by: Ravi Kumar Bokka <rbokka@codeaurora.org>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44868
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/src/soc/qualcomm/sc7180/watchdog.c b/src/soc/qualcomm/sc7180/watchdog.c
new file mode 100644
index 0000000000..954f68aa3d
--- /dev/null
+++ b/src/soc/qualcomm/sc7180/watchdog.c
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <soc/watchdog.h>
+#include <soc/clock.h>
+#include <console/console.h>
+#include <device/mmio.h>
+#include <vendorcode/google/chromeos/chromeos.h>
+
+void check_wdog(void)
+{
+	uint32_t wdog_sta = read32(&aoss->aoss_cc_reset_status);
+
+	if (wdog_sta & WDOG_RESET_BIT_MASK)
+		mark_watchdog_tombstone();
+}