--- a/arch/mips/ralink/Kconfig
+++ b/arch/mips/ralink/Kconfig
@@ -51,6 +51,7 @@ choice
 		select SYS_SUPPORTS_MULTITHREADING
 		select SYS_SUPPORTS_SMP
 		select SYS_SUPPORTS_MIPS_CMP
+		select SYS_SUPPORTS_HIGHMEM
 		select IRQ_GIC
 		select HW_HAS_PCI