diff --git a/arch/arm/mach-rk29/board-rk29sdk.c b/arch/arm/mach-rk29/board-rk29sdk.c
index 7a11667ce000..c07896328862 100755
--- a/arch/arm/mach-rk29/board-rk29sdk.c
+++ b/arch/arm/mach-rk29/board-rk29sdk.c
@@ -1269,7 +1269,7 @@ static struct platform_device rk29sdk_rfkill = {
 
 #ifdef CONFIG_VIVANTE
 #define GPU_HIGH_CLOCK        552
-#define GPU_LOW_CLOCK         288 /* same as general pll clock rate below */
+#define GPU_LOW_CLOCK         (periph_pll_default / 1000000) /* same as general pll clock rate below */
 static struct resource resources_gpu[] = {
     [0] = {
 		.name 	= "gpu_irq",