From: Jernej Skrabec <jernej.skrabec@gmail.com>
Date: Tue, 24 Mar 2026 16:43:55 +0000 (+0800)
Subject: arm64: dts: allwinner: sun50i-h616: Add SRAM nodes
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=402e845f9dff3f6f4bf5ff801a07301c05d4cd83;p=thirdparty%2Flinux.git

arm64: dts: allwinner: sun50i-h616: Add SRAM nodes

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@gmail.com>
[wens@kernel.org: Add VE SRAM region, commit message, and split into two]
Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Link: https://patch.msgid.link/20260324164357.1607247-8-wens@kernel.org
Signed-off-by: Chen-Yu Tsai <wens@kernel.org>
---

diff --git a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
index bf054869e78be..b116d3c12881e 100644
--- a/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
+++ b/arch/arm64/boot/dts/allwinner/sun50i-h616.dtsi
@@ -182,12 +182,38 @@
 			#size-cells = <1>;
 			ranges;
 
-			sram_c: sram@28000 {
+			/* SRAM C */
+			sram@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@0 {
+					compatible = "allwinner,sun50i-h616-sram-c",
+						     "allwinner,sun50i-a64-sram-c";
+					reg = <0x00000 0x30000>;
+				};
+			};
+
+			/* VE SRAM */
+			sram@1a00000 {
+				compatible = "mmio-sram";
+				reg = <0x01a00000 0x200000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				ranges = <0 0x01a00000 0x200000>;
+
+				ve_sram: sram-section@0 {
+					compatible = "allwinner,sun50i-h616-ve-sram";
+					reg = <0x000000 0x200000>;
+				};
 			};
 		};