1 files changed, 29 insertions, 0 deletions
diff --git a/src/southbridge/intel/i82801ex/watchdog.c b/src/southbridge/intel/i82801ex/watchdog.c
new file mode 100644
index 0000000000..26f6644763
--- /dev/null
+++ b/src/southbridge/intel/i82801ex/watchdog.c
@@ -0,0 +1,29 @@
+#include <console/console.h>
+#include <watchdog.h>
+#include <arch/io.h>
+#include <device/device.h>
+#include <device/pci.h>
+
+void watchdog_off(void)
+{
+        device_t dev;
+        unsigned long value,base;
+
+	/* turn off the ICH5 watchdog */
+        dev = dev_find_slot(0, PCI_DEVFN(0x1f,0));
+        /* Enable I/O space */
+        value = pci_read_config16(dev, 0x04);
+        value |= (1 << 10);
+        pci_write_config16(dev, 0x04, value);
+        /* Get TCO base */
+        base = (pci_read_config32(dev, 0x40) & 0x0fffe) + 0x60;
+        /* Disable the watchdog timer */
+        value = inw(base + 0x08);
+        value |= 1 << 11;
+        outw(value, base + 0x08);
+        /* Clear TCO timeout status */
+        outw(0x0008, base + 0x04);
+        outw(0x0002, base + 0x06);
+        printk(BIOS_DEBUG, "Watchdog ICH5 disabled\n");
+}
+