+/* Offsets */
+#define GPIOx_OR 0x00 /* GPIO Output Register */
+#define GPIOx_TCR 0x04 /* GPIO Three-State Control Register */
+#define GPIOx_OSL 0x08 /* GPIO Output Select Register (Bits 0-31) */
+#define GPIOx_OSH 0x0C /* GPIO Ouput Select Register (Bits 32-63) */
+#define GPIOx_TSL 0x10 /* GPIO Three-State Select Register (Bits 0-31) */
+#define GPIOx_TSH 0x14 /* GPIO Three-State Select Register (Bits 32-63) */
+#define GPIOx_ODR 0x18 /* GPIO Open drain Register */
+#define GPIOx_IR 0x1C /* GPIO Input Register */
+#define GPIOx_RR1 0x20 /* GPIO Receive Register 1 */
+#define GPIOx_RR2 0x24 /* GPIO Receive Register 2 */
+#define GPIOx_RR3 0x28 /* GPIO Receive Register 3 */
+#define GPIOx_IS1L 0x30 /* GPIO Input Select Register 1 (Bits 0-31) */
+#define GPIOx_IS1H 0x34 /* GPIO Input Select Register 1 (Bits 32-63) */
+#define GPIOx_IS2L 0x38 /* GPIO Input Select Register 2 (Bits 0-31) */
+#define GPIOx_IS2H 0x3C /* GPIO Input Select Register 2 (Bits 32-63) */
+#define GPIOx_IS3L 0x40 /* GPIO Input Select Register 3 (Bits 0-31) */
+#define GPIOx_IS3H 0x44 /* GPIO Input Select Register 3 (Bits 32-63) */
+
+#define GPIO_OR(x) (x+GPIOx_OR) /* GPIO Output Register */
+#define GPIO_TCR(x) (x+GPIOx_TCR) /* GPIO Three-State Control Register */
+#define GPIO_OS(x) (x+GPIOx_OSL) /* GPIO Output Select Register High or Low */
+#define GPIO_TS(x) (x+GPIOx_TSL) /* GPIO Three-state Control Reg High or Low */
+#define GPIO_IS1(x) (x+GPIOx_IS1L) /* GPIO Input register1 High or Low */
+#define GPIO_IS2(x) (x+GPIOx_IS2L) /* GPIO Input register2 High or Low */
+#define GPIO_IS3(x) (x+GPIOx_IS3L) /* GPIO Input register3 High or Low */
+
+#define GPIO0 0
+#define GPIO1 1
+