[PATCH 15/15] arm64: dts: allwinner: a64: Add Video Engine and reserved memory node

Paul Kocialkowski paul.kocialkowski at bootlin.com
Thu Nov 15 14:50:13 UTC 2018


This adds nodes for the Video Engine and the associated reserved memory
for the A64. Up to 96 MiB of memory are dedicated to the CMA pool.

The pool is located at the end of the first 256 MiB of RAM so that the
VPU can access it. It is unclear whether this is still a hard
requirement for this platform, but it seems safer that way.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski at bootlin.com>
---
 arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi | 25 +++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
index 88b3e9110833..a35a5c9ffbbe 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-a64.dtsi
@@ -185,6 +185,20 @@
 			(GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		cma_pool: cma at 4a000000 {
+			compatible = "shared-dma-pool";
+			size = <0x6000000>;
+			alloc-ranges = <0x4a000000 0x6000000>;
+			reusable;
+			linux,cma-default;
+		};
+	};
+
 	soc {
 		compatible = "simple-bus";
 		#address-cells = <1>;
@@ -373,6 +387,17 @@
 			};
 		};
 
+		video-codec at 1c0e000 {
+			compatible = "allwinner,sun50i-h5-video-engine";
+			reg = <0x01c0e000 0x1000>;
+			clocks = <&ccu CLK_BUS_VE>, <&ccu CLK_VE>,
+				 <&ccu CLK_DRAM_VE>;
+			clock-names = "ahb", "mod", "ram";
+			resets = <&ccu RST_BUS_VE>;
+			interrupts = <GIC_SPI 58 IRQ_TYPE_LEVEL_HIGH>;
+			allwinner,sram = <&ve_sram 1>;
+		};
+
 		mmc0: mmc at 1c0f000 {
 			compatible = "allwinner,sun50i-a64-mmc";
 			reg = <0x01c0f000 0x1000>;
-- 
2.19.1



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