diff --git a/arch/mips/au1000/common/gpio.c b/arch/mips/au1000/common/gpio.c
index 1f058434b7266057f678485c697780c9933f7592..e660ddd611c465dc6665ecf7d1346f82a5e77b98 100644
--- a/arch/mips/au1000/common/gpio.c
+++ b/arch/mips/au1000/common/gpio.c
@@ -48,7 +48,7 @@ static void au1xxx_gpio2_write(unsigned gpio, int value)
 {
 	gpio -= AU1XXX_GPIO_BASE;
 
-	gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | (value << gpio);
+	gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | ((!!value) << gpio);
 }
 
 static int au1xxx_gpio2_direction_input(unsigned gpio)
@@ -62,7 +62,7 @@ static int au1xxx_gpio2_direction_output(unsigned gpio, int value)
 {
 	gpio -= AU1XXX_GPIO_BASE;
 	gpio2->dir |= 0x01 << gpio;
-	gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | (value << gpio);
+	gpio2->output = (GPIO2_OUTPUT_ENABLE_MASK << gpio) | ((!!value) << gpio);
 	return 0;
 }