| Message ID | 20240222170135.3096122-1-thierry.reding@gmail.com |
|---|---|
| State | Accepted |
| Headers | show |
| Series | arm64: tegra: Add AXI configuration for Tegra234 MGBE | expand |
On 22/02/2024 17:01, Thierry Reding wrote: > From: Thierry Reding <treding@nvidia.com> > > 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. > > Signed-off-by: Thierry Reding <treding@nvidia.com> > --- > arch/arm64/boot/dts/nvidia/tegra234.dtsi | 24 ++++++++++++++++++++++++ > 1 file changed, 24 insertions(+) > > diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi > index 3f16595d099c..84c74155a5ca 100644 > --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi > +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi > @@ -1461,6 +1461,14 @@ ethernet@6800000 { > 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 @@ ethernet@6900000 { > 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 @@ ethernet@6a00000 { > 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 { Reviewed-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Fixes the speed for me! Thanks! Jon
diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi index 3f16595d099c..84c74155a5ca 100644 --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi @@ -1461,6 +1461,14 @@ ethernet@6800000 { 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 @@ ethernet@6900000 { 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 @@ ethernet@6a00000 { 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 {