linux-kernel - [PATCH v2 1/2] arm64: dts: mediatek: mt8188: Add ethernet node

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Message-Id: <20241018-genio700-eth-v2-1-f3c73b85507b@collabora.com>
Date: Fri, 18 Oct 2024 11:19:02 -0400
From: Nícolas F. R. A. Prado <nfraprado@...labora.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, 
 Matthias Brugger <matthias.bgg@...il.com>, 
 AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
 Richard Cochran <richardcochran@...il.com>
Cc: kernel@...labora.com, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-mediatek@...ts.infradead.org, netdev@...r.kernel.org, 
 Andrew Lunn <andrew@...n.ch>, 
 Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
 Jianguo Zhang <jianguo.zhang@...iatek.com>, 
 Macpaul Lin <macpaul.lin@...iatek.com>, 
 Hsuan-Yu Lin <shane.lin@...onical.com>
Subject: [PATCH v2 1/2] arm64: dts: mediatek: mt8188: Add ethernet node

Describe the ethernet present on the MT8188.

Signed-off-by: Jianguo Zhang <jianguo.zhang@...iatek.com>
Signed-off-by: Macpaul Lin <macpaul.lin@...iatek.com>
Signed-off-by: Hsuan-Yu Lin <shane.lin@...onical.com>
[Cleaned up to pass dtbs_check, follow DTS style guidelines, removed
hardcoded mac address and split between mt8188 and genio700 commits,
and addressed further feedback from the mailing list]
Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>
---
 arch/arm64/boot/dts/mediatek/mt8188.dtsi | 97 ++++++++++++++++++++++++++++++++
 1 file changed, 97 insertions(+)

diff --git a/arch/arm64/boot/dts/mediatek/mt8188.dtsi b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
index b493207a1b688dba51bf5e0e469349263f54ca94..d2795bba15ecd4e9359721b1c61cd4ae4a2a0a71 100644
--- a/arch/arm64/boot/dts/mediatek/mt8188.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt8188.dtsi
@@ -1647,6 +1647,103 @@ spi5: spi@...19000 {
 			status = "disabled";
 		};
 
+		eth: ethernet@...21000 {
+			compatible = "mediatek,mt8188-gmac", "mediatek,mt8195-gmac",
+				     "snps,dwmac-5.10a";
+			reg = <0 0x11021000 0 0x4000>;
+			interrupts = <GIC_SPI 716 IRQ_TYPE_LEVEL_HIGH 0>;
+			interrupt-names = "macirq";
+			clocks = <&pericfg_ao CLK_PERI_AO_ETHERNET>,
+				 <&pericfg_ao CLK_PERI_AO_ETHERNET_BUS>,
+				 <&topckgen CLK_TOP_SNPS_ETH_250M>,
+				 <&topckgen CLK_TOP_SNPS_ETH_62P4M_PTP>,
+				 <&topckgen CLK_TOP_SNPS_ETH_50M_RMII>,
+				 <&pericfg_ao CLK_PERI_AO_ETHERNET_MAC>;
+			clock-names = "axi", "apb", "mac_main", "ptp_ref",
+				      "rmii_internal", "mac_cg";
+			assigned-clocks = <&topckgen CLK_TOP_SNPS_ETH_250M>,
+					  <&topckgen CLK_TOP_SNPS_ETH_62P4M_PTP>,
+					  <&topckgen CLK_TOP_SNPS_ETH_50M_RMII>;
+			assigned-clock-parents = <&topckgen CLK_TOP_ETHPLL_D2>,
+						 <&topckgen CLK_TOP_ETHPLL_D8>,
+						 <&topckgen CLK_TOP_ETHPLL_D10>;
+			power-domains = <&spm MT8188_POWER_DOMAIN_ETHER>;
+			mediatek,pericfg = <&infracfg_ao>;
+			snps,axi-config = <&stmmac_axi_setup>;
+			snps,mtl-rx-config = <&mtl_rx_setup>;
+			snps,mtl-tx-config = <&mtl_tx_setup>;
+			snps,txpbl = <16>;
+			snps,rxpbl = <16>;
+			snps,clk-csr = <0>;
+			status = "disabled";
+
+			eth_mdio: mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			stmmac_axi_setup: stmmac-axi-config {
+				snps,blen = <0 0 0 0 16 8 4>;
+				snps,rd_osr_lmt = <0x7>;
+				snps,wr_osr_lmt = <0x7>;
+			};
+
+			mtl_rx_setup: rx-queues-config {
+				snps,rx-queues-to-use = <4>;
+				snps,rx-sched-sp;
+
+				queue0 {
+					snps,dcb-algorithm;
+					snps,map-to-dma-channel = <0x0>;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+					snps,map-to-dma-channel = <0x0>;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+					snps,map-to-dma-channel = <0x0>;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+					snps,map-to-dma-channel = <0x0>;
+				};
+			};
+
+			mtl_tx_setup: tx-queues-config {
+				snps,tx-queues-to-use = <4>;
+				snps,tx-sched-wrr;
+
+				queue0 {
+					snps,dcb-algorithm;
+					snps,priority = <0x0>;
+					snps,weight = <0x10>;
+				};
+
+				queue1 {
+					snps,dcb-algorithm;
+					snps,priority = <0x1>;
+					snps,weight = <0x11>;
+				};
+
+				queue2 {
+					snps,dcb-algorithm;
+					snps,priority = <0x2>;
+					snps,weight = <0x12>;
+				};
+
+				queue3 {
+					snps,dcb-algorithm;
+					snps,priority = <0x3>;
+					snps,weight = <0x13>;
+				};
+			};
+		};
+
 		xhci1: usb@...00000 {
 			compatible = "mediatek,mt8188-xhci", "mediatek,mtk-xhci";
 			reg = <0 0x11200000 0 0x1000>,

-- 
2.47.0