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

Inochi Amaoto
2025-05-06T11:15:44Z

Add ethernet GMAC device node for the sg2042.

Signed-off-by: Inochi Amaoto <inochiama@gmail.com>
Tested-by: Han Gao <rabenda.cn@gmail.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@7040000000 {
status = "disabled";
};

+ gmac0: ethernet@7040026000 {
+ 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@704002a000 {
compatible = "sophgo,sg2042-dwcmshc";
reg = <0x70 0x4002a000 0x0 0x1000>;
--
2.49.0