linux-kernel - [PATCH net-next v2 4/6] riscv: dts: spacemit: Add Ethernet support for K1

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250618-net-k1-emac-v2-4-94f5f07227a8@iscas.ac.cn>
Date: Wed, 18 Jun 2025 11:40:49 +0800
From: Vivian Wang <wangruikang@...as.ac.cn>
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>, Yixun Lan <dlan@...too.org>, 
 Vivian Wang <wangruikang@...as.ac.cn>, 
 Philipp Zabel <p.zabel@...gutronix.de>, 
 Paul Walmsley <paul.walmsley@...ive.com>, 
 Palmer Dabbelt <palmer@...belt.com>, Albert Ou <aou@...s.berkeley.edu>, 
 Alexandre Ghiti <alex@...ti.fr>
Cc: Vivian Wang <uwu@...m.page>, Lukas Bulwahn <lukas.bulwahn@...hat.com>, 
 Geert Uytterhoeven <geert+renesas@...der.be>, 
 Parthiban Veerasooran <Parthiban.Veerasooran@...rochip.com>, 
 netdev@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-riscv@...ts.infradead.org, spacemit@...ts.linux.dev, 
 linux-kernel@...r.kernel.org
Subject: [PATCH net-next v2 4/6] riscv: dts: spacemit: Add Ethernet support
 for K1

Add nodes for each of the two Ethernet MACs on K1 with generic
properties. Also add "gmac" pins to pinctrl config.

Signed-off-by: Vivian Wang <wangruikang@...as.ac.cn>
---
 arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi | 48 ++++++++++++++++++++++++++++
 arch/riscv/boot/dts/spacemit/k1.dtsi         | 22 +++++++++++++
 2 files changed, 70 insertions(+)

diff --git a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
index 283663647a86ff137917ced8bfe79a129c86342a..4a7fbb40858dc1e7d2a55d4bb8547d5472ec4fc3 100644
--- a/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
@@ -20,4 +20,52 @@ uart0-2-pins {
 			drive-strength = <32>;
 		};
 	};
+
+	gmac0_cfg: gmac0-cfg {
+		gmac0-pins {
+			pinmux = <K1_PADCONF(0, 1)>,	/* gmac0_rxdv */
+				 <K1_PADCONF(1, 1)>,	/* gmac0_rx_d0 */
+				 <K1_PADCONF(2, 1)>,	/* gmac0_rx_d1 */
+				 <K1_PADCONF(3, 1)>,	/* gmac0_rx_clk */
+				 <K1_PADCONF(4, 1)>,	/* gmac0_rx_d2 */
+				 <K1_PADCONF(5, 1)>,	/* gmac0_rx_d3 */
+				 <K1_PADCONF(6, 1)>,	/* gmac0_tx_d0 */
+				 <K1_PADCONF(7, 1)>,	/* gmac0_tx_d1 */
+				 <K1_PADCONF(8, 1)>,	/* gmac0_tx */
+				 <K1_PADCONF(9, 1)>,	/* gmac0_tx_d2 */
+				 <K1_PADCONF(10, 1)>,	/* gmac0_tx_d3 */
+				 <K1_PADCONF(11, 1)>,	/* gmac0_tx_en */
+				 <K1_PADCONF(12, 1)>,	/* gmac0_mdc */
+				 <K1_PADCONF(13, 1)>,	/* gmac0_mdio */
+				 <K1_PADCONF(14, 1)>,	/* gmac0_int_n */
+				 <K1_PADCONF(45, 1)>;	/* gmac0_clk_ref */
+
+			bias-pull-up = <0>;
+			drive-strength = <21>;
+		};
+	};
+
+	gmac1_cfg: gmac1-cfg {
+		gmac1-pins {
+			pinmux = <K1_PADCONF(29, 1)>,	/* gmac1_rxdv */
+				 <K1_PADCONF(30, 1)>,	/* gmac1_rx_d0 */
+				 <K1_PADCONF(31, 1)>,	/* gmac1_rx_d1 */
+				 <K1_PADCONF(32, 1)>,	/* gmac1_rx_clk */
+				 <K1_PADCONF(33, 1)>,	/* gmac1_rx_d2 */
+				 <K1_PADCONF(34, 1)>,	/* gmac1_rx_d3 */
+				 <K1_PADCONF(35, 1)>,	/* gmac1_tx_d0 */
+				 <K1_PADCONF(36, 1)>,	/* gmac1_tx_d1 */
+				 <K1_PADCONF(37, 1)>,	/* gmac1_tx */
+				 <K1_PADCONF(38, 1)>,	/* gmac1_tx_d2 */
+				 <K1_PADCONF(39, 1)>,	/* gmac1_tx_d3 */
+				 <K1_PADCONF(40, 1)>,	/* gmac1_tx_en */
+				 <K1_PADCONF(41, 1)>,	/* gmac1_mdc */
+				 <K1_PADCONF(42, 1)>,	/* gmac1_mdio */
+				 <K1_PADCONF(43, 1)>,	/* gmac1_int_n */
+				 <K1_PADCONF(46, 1)>;	/* gmac1_clk_ref */
+
+			bias-pull-up = <0>;
+			drive-strength = <21>;
+		};
+	};
 };
diff --git a/arch/riscv/boot/dts/spacemit/k1.dtsi b/arch/riscv/boot/dts/spacemit/k1.dtsi
index b1b87ce1ab70faa8fb61fb27bc1845fe40b35561..819d3bf18a103c083f17ad494fb3470c9eebd8bc 100644
--- a/arch/riscv/boot/dts/spacemit/k1.dtsi
+++ b/arch/riscv/boot/dts/spacemit/k1.dtsi
@@ -588,6 +588,28 @@ network-bus {
 			#size-cells = <2>;
 			dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>,
 				     <0x0 0x80000000 0x1 0x00000000 0x0 0x80000000>;
+
+			eth0: ethernet@...80000 {
+				compatible = "spacemit,k1-emac";
+				reg = <0x0 0xcac80000 0x0 0x420>;
+				clocks = <&syscon_apmu CLK_EMAC0_BUS>;
+				interrupts = <131>;
+				mac-address = [ 00 00 00 00 00 00 ];
+				resets = <&syscon_apmu RESET_EMAC0>;
+				spacemit,apmu = <&syscon_apmu 0x3e4>;
+				status = "disabled";
+			};
+
+			eth1: ethernet@...81000 {
+				compatible = "spacemit,k1-emac";
+				reg = <0x0 0xcac81000 0x0 0x420>;
+				clocks = <&syscon_apmu CLK_EMAC1_BUS>;
+				interrupts = <133>;
+				mac-address = [ 00 00 00 00 00 00 ];
+				resets = <&syscon_apmu RESET_EMAC1>;
+				spacemit,apmu = <&syscon_apmu 0x3ec>;
+				status = "disabled";
+			};
 		};
 	};
 };

-- 
2.49.0