1 files changed, 19 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801cx/cmos_failover.c b/src/southbridge/intel/i82801cx/cmos_failover.c
new file mode 100644
index 0000000000..ab1816fbd8
--- /dev/null
+++ b/src/southbridge/intel/i82801cx/cmos_failover.c
@@ -0,0 +1,19 @@
+//kind of cmos_err for ich3
+
+#include "i82801cx.h"
+
+static void check_cmos_failed(void) 
+{
+#if CONFIG_HAVE_OPTION_TABLE
+	uint8_t byte = pci_read_config8(PCI_DEV(0,0x1f,0),GEN_PMCON_3);
+
+	if( byte & RTC_BATTERY_DEAD) {
+		// Set boot_option and last_boot to 'Fallback',
+		// clear reboot_bits
+        byte = cmos_read(RTC_BOOT_BYTE);
+        byte &= 0x0c;
+        byte |= CONFIG_MAX_REBOOT_CNT << 4;
+        cmos_write(byte, RTC_BOOT_BYTE);
+    }
+#endif
+}