linux-kernel - [PATCH v5 08/10] arm64: dts: socfpga: agilex5: dma coherent enablement for XGMACs

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Message-Id: <20251024-v6-12-topic-socfpga-agilex5-v5-8-4c4a51159eeb@pengutronix.de>
Date: Fri, 24 Oct 2025 13:50:00 +0200
From: Steffen Trumtrar <s.trumtrar@...gutronix.de>
To: Andrew Lunn <andrew+netdev@...n.ch>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Dinh Nguyen <dinguyen@...nel.org>, 
 Maxime Chevallier <maxime.chevallier@...tlin.com>, 
 Maxime Coquelin <mcoquelin.stm32@...il.com>, 
 Alexandre Torgue <alexandre.torgue@...s.st.com>, 
 Matthew Gerlach <matthew.gerlach@...era.com>
Cc: kernel@...gutronix.de, netdev@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-stm32@...md-mailman.stormreply.com, 
 linux-arm-kernel@...ts.infradead.org, 
 Steffen Trumtrar <s.trumtrar@...gutronix.de>, 
 "Tham, Mun Yew" <mun.yew.tham@...el.com>
Subject: [PATCH v5 08/10] arm64: dts: socfpga: agilex5: dma coherent
 enablement for XGMACs

From: "Tham, Mun Yew" <mun.yew.tham@...el.com>

Add dma-coherent property to device tree for XGMACs to resolve kernel
panic error on dcache_inval_poc for XGMACs.

Signed-off-by: Tham, Mun Yew <mun.yew.tham@...el.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@...gutronix.de>
---
 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 d0c139f03541e..63c0aa8550313 100644
--- a/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
+++ b/arch/arm64/boot/dts/intel/socfpga_agilex5.dtsi
@@ -558,6 +558,7 @@ gmac0: ethernet@...10000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x44 0>;
 			snps,clk-csr = <0>;
+			dma-coherent;
 			iommus = <&smmu 1>;
 			status = "disabled";

@@ -672,6 +673,7 @@ gmac1: ethernet@...20000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x48 0>;
 			snps,clk-csr = <0>;
+			dma-coherent;
 			iommus = <&smmu 2>;
 			status = "disabled";

@@ -786,6 +788,7 @@ gmac2: ethernet@...30000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x4c 0>;
 			snps,clk-csr = <0>;
+			dma-coherent;
 			iommus = <&smmu 3>;
 			status = "disabled";

-- 
2.51.0