diff --git a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
index a3d00aeedd..c1990ad453 100644
--- a/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
+++ b/target/linux/ar71xx/files/arch/mips/ar71xx/gpio.c
@@ -139,6 +139,10 @@ void __init ar71xx_gpio_init(void)
 		ar71xx_gpio_chip.ngpio = AR71XX_GPIO_COUNT;
 		break;
 
+	case AR71XX_SOC_AR7240:
+		ar71xx_gpio_chip.ngpio = AR724X_GPIO_COUNT;
+		break;
+
 	case AR71XX_SOC_AR9130:
 	case AR71XX_SOC_AR9132:
 		ar71xx_gpio_chip.ngpio = AR91XX_GPIO_COUNT;
diff --git a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
index 8a45a0c90e..14e5fe3dda 100644
--- a/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
+++ b/target/linux/ar71xx/files/arch/mips/include/asm/mach-ar71xx/ar71xx.h
@@ -238,6 +238,8 @@ static inline u32 ar71xx_usb_ctrl_rr(unsigned reg)
 
 #define AR71XX_GPIO_COUNT	16
 
+#define AR724X_GPIO_COUNT	16
+
 #define AR91XX_GPIO_FUNC_WMAC_LED_EN	BIT(22)
 #define AR91XX_GPIO_FUNC_EXP_PORT_CS_EN	BIT(21)
 #define AR91XX_GPIO_FUNC_I2S_REFCLKEN	BIT(20)