diff --git a/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h b/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h
index ad94e1ac2463..ad4a04acf67a 100644
--- a/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h
+++ b/arch/arm/mach-s3c2410/include/mach/gpio-nrs.h
@@ -16,7 +16,6 @@
 
 #define S3C2410_GPIONO(bank,offset) ((bank) + (offset))
 
-#define S3C2410_GPIO_BANKC   (32*2)
 #define S3C2410_GPIO_BANKG   (32*6)
 #define S3C2410_GPIO_BANKH   (32*7)
 
diff --git a/arch/arm/mach-s3c2410/include/mach/gpio-track.h b/arch/arm/mach-s3c2410/include/mach/gpio-track.h
index 6371eaa5fe4d..d67819dde42a 100644
--- a/arch/arm/mach-s3c2410/include/mach/gpio-track.h
+++ b/arch/arm/mach-s3c2410/include/mach/gpio-track.h
@@ -27,7 +27,7 @@ static inline struct s3c_gpio_chip *s3c_gpiolib_getchip(unsigned int pin)
 		return NULL;
 
 	chip = &s3c24xx_gpios[pin/32];
-	return (S3C2410_GPIO_OFFSET(pin) < chip->chip.ngpio) ? chip : NULL;
+	return ((pin - chip->chip.base) < chip->chip.ngpio) ? chip : NULL;
 }
 
 #endif /* __ASM_ARCH_GPIO_CORE_H */
diff --git a/arch/arm/mach-s3c2410/include/mach/regs-gpio.h b/arch/arm/mach-s3c2410/include/mach/regs-gpio.h
index 821b966bf05a..95e29fefec34 100644
--- a/arch/arm/mach-s3c2410/include/mach/regs-gpio.h
+++ b/arch/arm/mach-s3c2410/include/mach/regs-gpio.h
@@ -17,29 +17,11 @@
 #include <mach/gpio-nrs.h>
 
 #ifdef CONFIG_CPU_S3C2400
-#define S3C24XX_GPIO_BASE(x)  S3C2400_GPIO_BASE(x)
-#define S3C24XX_MISCCR        S3C2400_MISCCR
+#define S3C24XX_MISCCR		S3C2400_MISCCR
 #else
-#define S3C24XX_GPIO_BASE(x)  S3C2410_GPIO_BASE(x)
-#define S3C24XX_MISCCR	      S3C24XX_GPIOREG2(0x80)
+#define S3C24XX_MISCCR		S3C24XX_GPIOREG2(0x80)
 #endif /* CONFIG_CPU_S3C2400 */
 
-
-/* S3C2400 doesn't have a 1:1 mapping to S3C2410 gpio base pins */
-
-#define S3C2400_BANKNUM(pin)     (((pin) & ~31) / 32)
-#define S3C2400_BASEA2B(pin)     ((((pin) & ~31) >> 2))
-#define S3C2400_BASEC2H(pin)     ((S3C2400_BANKNUM(pin) * 10) + \
-                                 (2 * (S3C2400_BANKNUM(pin)-2)))
-
-#define S3C2400_GPIO_BASE(pin)   (pin < S3C2410_GPIO_BANKC ? \
-                                 S3C2400_BASEA2B(pin)+S3C24XX_VA_GPIO : \
-                                 S3C2400_BASEC2H(pin)+S3C24XX_VA_GPIO)
-
-
-#define S3C2410_GPIO_BASE(pin)   ((((pin) & ~31) >> 1) + S3C24XX_VA_GPIO)
-#define S3C2410_GPIO_OFFSET(pin) ((pin) & 31)
-
 /* general configuration options */
 
 #define S3C2410_GPIO_LEAVE   (0xFFFFFFFF)