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

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Message-ID: <f3c5a9f5-c608-4bce-94c2-6a97172d329d@kernel.org>
Date: Tue, 9 Dec 2025 05:53:42 -0600
From: Dinh Nguyen <dinguyen@...nel.org>
To: muhammadnazimamirul.nazleasmade@...era.com, 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: Re: arm64: dts: socfpga: agilex5: Add IOMMUS property for ethernet
 nodes



On 12/3/25 20:29, muhammadnazimamirul.nazleasmade@...era.com wrote:
> 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 {

Applied!

Thanks,
Dinh