[PATCH 7/7] arm64: dts: allwinner: sun50i-h616: Add SRAM nodes

Chen-Yu Tsai wens at kernel.org
Tue Mar 24 09:43:55 PDT 2026


From: Jernej Skrabec <jernej.skrabec at gmail.com>

The H616 SoC has a video engine, and two SRAM regions needed by it.

Add the SRAM regions to the dtsi file. The video engine will be added
in a separate change.

Signed-off-by: Jernej Skrabec <jernej.skrabec at gmail.com>
[wens at kernel.org: Add VE SRAM region, commit message, and split into two]
Signed-off-by: Chen-Yu Tsai <wens at kernel.org>
---
 .../arm64/boot/dts/allwinner/sun50i-h616.dtsi | 28 ++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index 8d1110c14bad..0c50a73def65 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -182,12 +182,38 @@ syscon: syscon at 3000000 {
 			#size-cells = <1>;
 			ranges;
 
-			sram_c: sram at 28000 {
+			/* SRAM C */
+			sram at 28000 {
 				compatible = "mmio-sram";
 				reg = <0x00028000 0x30000>;
 				#address-cells = <1>;
 				#size-cells = <1>;
 				ranges = <0 0x00028000 0x30000>;
+
+				/*
+				 * 0x0 ~ 0x20000 is partial alias of VE SRAM below.
+				 * 0x20000 ~ 0x2ffff is (partial?) alias of DE SRAM.
+				 * However the whole region is toggled together.
+				 */
+				sram_c: sram-section at 0 {
+					compatible = "allwinner,sun50i-h616-sram-c",
+						     "allwinner,sun50i-a64-sram-c";
+					reg = <0x00000 0x30000>;
+				};
+			};
+
+			/* VE SRAM */
+			sram at 1a00000 {
+				compatible = "mmio-sram";
+				reg = <0x01a00000 0x200000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x01a00000 0x200000>;
+
+				ve_sram: sram-section at 0 {
+					compatible = "allwinner,sun50i-h616-ve-sram";
+					reg = <0x000000 0x200000>;
+				};
 			};
 		};
 
-- 
2.47.3




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