diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig
index 08b0a5b..017af4c 100644
--- a/arch/arm/mach-s5p64x0/Kconfig
+++ b/arch/arm/mach-s5p64x0/Kconfig
@@ -10,12 +10,14 @@
 config CPU_S5P6440
 	bool
 	select S3C_PL330_DMA
+	select S5P_HRT
 	help
 	  Enable S5P6440 CPU support
 
 config CPU_S5P6450
 	bool
 	select S3C_PL330_DMA
+	select S5P_HRT
 	help
 	  Enable S5P6450 CPU support