2 files changed, 11 insertions, 1 deletions

diff --git a/arch/mips/ar7/platform.c b/arch/mips/ar7/platform.c
index e2278c04459d..835f3f0319ca 100644
--- a/arch/mips/ar7/platform.c
+++ b/arch/mips/ar7/platform.c
@@ -503,6 +503,7 @@ static int __init ar7_register_devices(void)
 {
         u16 chip_id;
         int res;
+        u32 *bootcr, val;
 #ifdef CONFIG_SERIAL_8250
         static struct uart_port uart_port[2];
 
@@ -595,7 +596,13 @@ static int __init ar7_register_devices(void)
 
         ar7_wdt_res.end = ar7_wdt_res.start + 0x20;
 
-        res = platform_device_register(&ar7_wdt);
+        bootcr = (u32 *)ioremap_nocache(AR7_REGS_DCL, 4);
+        val = *bootcr;
+        iounmap(bootcr);
+
+        /* Register watchdog only if enabled in hardware */
+        if (val & AR7_WDT_HW_ENA)
+                res = platform_device_register(&ar7_wdt);
 
         return res;
 }
diff --git a/arch/mips/include/asm/mach-ar7/ar7.h b/arch/mips/include/asm/mach-ar7/ar7.h
index de71694614de..21cbbc706448 100644
--- a/arch/mips/include/asm/mach-ar7/ar7.h
+++ b/arch/mips/include/asm/mach-ar7/ar7.h
@@ -78,6 +78,9 @@
 #define AR7_REF_CLOCK   25000000
 #define AR7_XTAL_CLOCK  24000000
 
+/* DCL */
+#define AR7_WDT_HW_ENA  0x10
+
 struct plat_cpmac_data {
         int reset_bit;
         int power_bit;