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riscv: dts: spacemit: Add Ethernet support for K1

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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@iscas.ac.cn>
Reviewed-by: Yixun Lan <dlan@gentoo.org>
Link: https://patch.msgid.link/20250914-net-k1-emac-v12-3-65b31b398f44@iscas.ac.cn
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Vivian Wang 2025-09-14 12:23:14 +08:00 committed by Paolo Abeni
parent bfec6d7f20
commit 60775f28cf
2 changed files with 70 additions and 0 deletions
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48
arch/riscv/boot/dts/spacemit/k1-pinctrl.dtsi
View File

@ -11,6 +11,54 @@
#define K1_GPIO(x) (x / 32) (x % 32)
&pinctrl {
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>;
};
};
uart0_2_cfg: uart0-2-cfg {
uart0-2-pins {
pinmux = <K1_PADCONF(68, 2)>,

22
arch/riscv/boot/dts/spacemit/k1.dtsi
View File

@ -805,6 +805,28 @@ network-bus {
#size-cells = <2>;
dma-ranges = <0x0 0x00000000 0x0 0x00000000 0x0 0x80000000>,
<0x0 0x80000000 0x1 0x00000000 0x0 0x80000000>;
eth0: ethernet@cac80000 {
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@cac81000 {
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";
};
};
pcie-bus {