From: Thierry Reding Date: Wed, 21 Feb 2024 16:17:16 +0000 (+0100) Subject: arm64: tegra: Add AXI configuration for Tegra234 MGBE X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=81695da63b977f47e55f4c97f71111e415fe7f52;p=linux.git arm64: tegra: Add AXI configuration for Tegra234 MGBE The MGBE devices found on Tegra234 need their AXI interface configured to operate at peak performance. Ideally we would do this in the driver based off the compatible string, but the DT bindings already specify a separate mechanism, so reuse that. Reviewed-by: Jon Hunter Tested-by: Jon Hunter Signed-off-by: Thierry Reding --- diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi index 3f16595d099c5..84c74155a5ca1 100644 --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi @@ -1461,6 +1461,14 @@ iommus = <&smmu_niso0 TEGRA234_SID_MGBE>; power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEA>; status = "disabled"; + + snps,axi-config = <&mgbe0_axi_setup>; + + mgbe0_axi_setup: stmmac-axi-config { + snps,blen = <256 128 64 32>; + snps,rd_osr_lmt = <63>; + snps,wr_osr_lmt = <63>; + }; }; ethernet@6900000 { @@ -1495,6 +1503,14 @@ iommus = <&smmu_niso0 TEGRA234_SID_MGBE_VF1>; power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEB>; status = "disabled"; + + snps,axi-config = <&mgbe1_axi_setup>; + + mgbe1_axi_setup: stmmac-axi-config { + snps,blen = <256 128 64 32>; + snps,rd_osr_lmt = <63>; + snps,wr_osr_lmt = <63>; + }; }; ethernet@6a00000 { @@ -1529,6 +1545,14 @@ iommus = <&smmu_niso0 TEGRA234_SID_MGBE_VF2>; power-domains = <&bpmp TEGRA234_POWER_DOMAIN_MGBEC>; status = "disabled"; + + snps,axi-config = <&mgbe2_axi_setup>; + + mgbe2_axi_setup: stmmac-axi-config { + snps,blen = <256 128 64 32>; + snps,rd_osr_lmt = <63>; + snps,wr_osr_lmt = <63>; + }; }; ethernet@6b00000 {