[PATCH 1/4] arm64: dts: ti: k3-j721s2-main: Add mmio-sram node to main_navss

Brandon Brnich b-brnich at ti.com
Mon Mar 2 10:17:57 PST 2026


The NavigatorSS (NAVSS) address space contains a 64 KiB on-chip SRAM
region at its base address. Add an mmio-sram node to expose this region
to consumers via the generic SRAM allocator API.

Signed-off-by: Brandon Brnich <b-brnich at ti.com>
---
 arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
index 80c51b11ac9f..7b1ba34ab719 100644
--- a/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
+++ b/arch/arm64/boot/dts/ti/k3-j721s2-main.dtsi
@@ -785,6 +785,14 @@ main_navss: bus at 30000000 {
 		dma-coherent;
 		dma-ranges;
 
+		main_navss_sram: navss-sram at 30000000 {
+			compatible = "mmio-sram";
+			reg = <0x00 0x30000000 0x00 0x10000>;
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <0x0 0x00 0x30000000 0x10000>;
+		};
+
 		main_navss_intr: interrupt-controller at 310e0000 {
 			compatible = "ti,sci-intr";
 			reg = <0x00 0x310e0000 0x00 0x4000>;
-- 
2.43.0




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