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

Chen-Yu Tsai
2026-03-24T16:44:24Z

From: Jernej Skrabec <jernej.skrabec@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@gmail.com>
[wens@kernel.org: Add VE SRAM region, commit message, and split into two]
Signed-off-by: Chen-Yu Tsai <wens@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@3000000 {
#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>;
+ };
};
};

--
2.47.3