diff --git a/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts b/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts
index 6c135b59028d..277abd768868 100644
--- a/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts
+++ b/arch/arm/boot/dts/amlogic/tl1_t962x2_t309.dts
@@ -97,7 +97,7 @@
 		ion_cma_reserved:linux,ion-dev {
 			compatible = "shared-dma-pool";
 			reusable;
-			size = <0x8000000>;
+			size = <0x2000000>;
 			alignment = <0x400000>;
 		};
 
@@ -489,7 +489,7 @@
 		 *if support 4K2K-YUV422-8BIT-WR:3840*2160*2*4 ~= 64M
 		 *if support 1080p-YUV422-8BIT-WR:1920*1080*2*4 ~= 16M
 		 */
-		cma_size = <190>;
+		cma_size = <160>;
 		interrupts = <0 83 1>;
 		rdma-irq = <2>;
 		clocks = <&clkc CLKID_FCLK_DIV5>,
diff --git a/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts b/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts
index fd1faa459f7d..1fed35eef24d 100644
--- a/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts
+++ b/arch/arm/boot/dts/amlogic/tl1_t962x2_x301.dts
@@ -106,7 +106,7 @@
 		ion_cma_reserved:linux,ion-dev {
 			compatible = "shared-dma-pool";
 			reusable;
-			size = <0x8000000>;
+			size = <0x2000000>;
 			alignment = <0x400000>;
 		};
 
@@ -450,7 +450,7 @@
 		 *if support 4K2K-YUV422-8BIT-WR:3840*2160*2*4 ~= 64M
 		 *if support 1080p-YUV422-8BIT-WR:1920*1080*2*4 ~= 16M
 		 */
-		cma_size = <190>;
+		cma_size = <160>;
 		interrupts = <0 83 1>;
 		rdma-irq = <2>;
 		clocks = <&clkc CLKID_FCLK_DIV5>,