linux-kernel - [PATCH net-next 4/4] riscv: dts: sophgo: add ethernet GMAC device for sg2042

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Message-ID: <20250506093256.1107770-5-inochiama@gmail.com>
Date: Tue,  6 May 2025 17:32:54 +0800
From: Inochi Amaoto <inochiama@...il.com>
To: Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Chen Wang <unicorn_wang@...look.com>,
	Inochi Amaoto <inochiama@...il.com>,
	Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Richard Cochran <richardcochran@...il.com>,
	Guo Ren <guoren@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Uwe Kleine-König <u.kleine-koenig@...libre.com>,
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>,
	Romain Gantois <romain.gantois@...tlin.com>,
	Joe Hattori <joe@...is.s.u-tokyo.ac.jp>,
	Lothar Rubusch <l.rubusch@...il.com>,
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	Jose Abreu <joabreu@...opsys.com>
Cc: netdev@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	sophgo@...ts.linux.dev,
	linux-riscv@...ts.infradead.org,
	linux-stm32@...md-mailman.stormreply.com,
	linux-arm-kernel@...ts.infradead.org,
	Yixun Lan <dlan@...too.org>,
	Longbin Li <looong.bin@...il.com>,
	Han Gao <rabenda.cn@...il.com>
Subject: [PATCH net-next 4/4] riscv: dts: sophgo: add ethernet GMAC device for sg2042

Add ethernet GMAC device node for the sg2042.

Signed-off-by: Inochi Amaoto <inochiama@...il.com>
Tested-by: Han Gao <rabenda.cn@...il.com>
---
 arch/riscv/boot/dts/sophgo/sg2042.dtsi | 62 ++++++++++++++++++++++++++
 1 file changed, 62 insertions(+)

diff --git a/arch/riscv/boot/dts/sophgo/sg2042.dtsi b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
index f61de4788475..886c13cef6ba 100644
--- a/arch/riscv/boot/dts/sophgo/sg2042.dtsi
+++ b/arch/riscv/boot/dts/sophgo/sg2042.dtsi
@@ -543,6 +543,68 @@ uart0: serial@...0000000 {
 			status = "disabled";
 		};
 
+		gmac0: ethernet@...0026000 {
+			compatible = "sophgo,sg2042-dwmac", "snps,dwmac-5.00a";
+			reg = <0x70 0x40026000 0x0 0x4000>;
+			clocks = <&clkgen GATE_CLK_AXI_ETH0>,
+				 <&clkgen GATE_CLK_PTP_REF_I_ETH0>,
+				 <&clkgen GATE_CLK_TX_ETH0>;
+			clock-names = "stmmaceth", "ptp_ref", "tx";
+			dma-noncoherent;
+			interrupt-parent = <&intc>;
+			interrupts = <132 IRQ_TYPE_LEVEL_HIGH>;
+			interrupt-names = "macirq";
+			resets = <&rstgen RST_ETH0>;
+			reset-names = "stmmaceth";
+			snps,multicast-filter-bins = <0>;
+			snps,perfect-filter-entries = <1>;
+			snps,aal;
+			snps,tso;
+			snps,txpbl = <32>;
+			snps,rxpbl = <32>;
+			snps,mtl-rx-config = <&gmac0_mtl_rx_setup>;
+			snps,mtl-tx-config = <&gmac0_mtl_tx_setup>;
+			snps,axi-config = <&gmac0_stmmac_axi_setup>;
+			status = "disabled";
+
+			mdio {
+				compatible = "snps,dwmac-mdio";
+				#address-cells = <1>;
+				#size-cells = <0>;
+			};
+
+			gmac0_mtl_rx_setup: rx-queues-config {
+				snps,rx-queues-to-use = <8>;
+				snps,rx-sched-wsp;
+				queue0 {};
+				queue1 {};
+				queue2 {};
+				queue3 {};
+				queue4 {};
+				queue5 {};
+				queue6 {};
+				queue7 {};
+			};
+
+			gmac0_mtl_tx_setup: tx-queues-config {
+				snps,tx-queues-to-use = <8>;
+				queue0 {};
+				queue1 {};
+				queue2 {};
+				queue3 {};
+				queue4 {};
+				queue5 {};
+				queue6 {};
+				queue7 {};
+			};
+
+			gmac0_stmmac_axi_setup: stmmac-axi-config {
+				snps,blen = <16 8 4 0 0 0 0>;
+				snps,wr_osr_lmt = <1>;
+				snps,rd_osr_lmt = <2>;
+			};
+		};
+
 		emmc: mmc@...002a000 {
 			compatible = "sophgo,sg2042-dwcmshc";
 			reg = <0x70 0x4002a000 0x0 0x1000>;
-- 
2.49.0