diff --git a/arch/mips/ath79/common.h b/arch/mips/ath79/common.h
index a3120714f0b75455efedc1fb589bcffcc938f65a..c39de61f9b36f6a0ec4cc327defa940c45e924f5 100644
--- a/arch/mips/ath79/common.h
+++ b/arch/mips/ath79/common.h
@@ -17,7 +17,7 @@
 #include <linux/types.h>
 
 #define ATH79_MEM_SIZE_MIN	(2 * 1024 * 1024)
-#define ATH79_MEM_SIZE_MAX	(128 * 1024 * 1024)
+#define ATH79_MEM_SIZE_MAX	(256 * 1024 * 1024)
 
 void ath79_clocks_init(void);
 unsigned long ath79_get_sys_clk_rate(const char *id);