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arm64: tegra: Add AXI configuration for Tegra234 MGBE

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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 <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Thierry Reding
2024-02-21 17:17:16 +01:00
parent 57cfb0aba2
commit 81695da63b
1 changed files with 24 additions and 0 deletions
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arch/arm64/boot/dts/nvidia/tegra234.dtsi
+24
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@@ -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 {