linux-kernel - arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet nodes

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Message-Id: <7379d0b30094b30843c99f801dfcba9fafc4ae1d.1764294423.git.muhammad.nazim.amirul.nazle.asmade@altera.com>
Date: Wed,  3 Dec 2025 18:29:00 -0800
From: muhammadnazimamirul.nazleasmade@...era.com
To: Dinh Nguyen <dinguyen@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@...era.com>
Subject: arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet nodes

From: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@...era.com>

To enable SMMU integration, populate the iommus property to the ethernet
device-tree node.

Signed-off-by: Nazim Amirul <muhammad.nazim.amirul.nazle.asmade@...era.com>
---
 arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
index 1f5d560f97b2..06f98667499b 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
@@ -577,6 +577,7 @@ gmac0: ethernet@...10000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x44 0>;
 			snps,clk-csr = <0>;
+			iommus = <&smmu 1>;
 			status = "disabled";
 
 			stmmac_axi_emac0_setup: stmmac-axi-config {
@@ -689,6 +690,7 @@ gmac1: ethernet@...20000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x48 0>;
 			snps,clk-csr = <0>;
+			iommus = <&smmu 2>;
 			status = "disabled";
 
 			stmmac_axi_emac1_setup: stmmac-axi-config {
@@ -801,6 +803,7 @@ gmac2: ethernet@...30000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x4c 0>;
 			snps,clk-csr = <0>;
+			iommus = <&smmu 3>;
 			status = "disabled";
 
 			stmmac_axi_emac2_setup: stmmac-axi-config {
-- 
2.43.7