diff --git a/include/asm-generic/gpio.h b/include/asm-generic/gpio.h
index c1d4105e1c1d57de7e916d532cf044b641348b92..383ade1a211bfcbec546899d6451171a63e5a13f 100644
--- a/include/asm-generic/gpio.h
+++ b/include/asm-generic/gpio.h
@@ -27,7 +27,7 @@
  */
 
 #ifndef ARCH_NR_GPIOS
-#define ARCH_NR_GPIOS		256
+#define ARCH_NR_GPIOS		512
 #endif
 
 /*