From: "Tham, Mun Yew" <mun.yew.tham@intel.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@intel.com>
Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.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@10810000 {
 			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@10820000 {
 			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@10830000 {
 			snps,tso;
 			altr,sysmgr-syscon = <&sysmgr 0x4c 0>;
 			snps,clk-csr = <0>;
+			dma-coherent;
 			iommus = <&smmu 3>;
 			status = "disabled";
 

-- 
2.51.0