[PATCH 2/2] ARM: dts: owl-s500-roseapplepi: Add ethernet support

Cristian Ciocaltea
2021-06-10T21:09:30Z

Add pinctrl configuration for enabling the Ethernet MAC on RoseapplePi
SBC. Additionally, provide the necessary properties for the generic S500
ethernet node in order to setup PHY and MDIO.

Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@gmail.com>
---
arch/arm/boot/dts/owl-s500-roseapplepi.dts | 56 ++++++++++++++++++++++
1 file changed, 56 insertions(+)

diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
index b8c5db2344aa..bffabc7eaa50 100644
--- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts
+++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
@@ -225,6 +225,38 @@ bias1-pinconf {
bias-pull-down;
};
};
+
+ ethernet_pins: ethernet-pins {
+ txd01-pinmux {
+ groups = "rmii_txd0_mfp", "rmii_txd1_mfp";
+ function = "eth_rmii";
+ };
+
+ rxd01-pinmux {
+ groups = "rmii_rxd0_mfp", "rmii_rxd1_mfp";
+ function = "eth_rmii";
+ };
+
+ txen_rxer-pinmux {
+ groups = "rmii_txen_mfp", "rmii_rxen_mfp";
+ function = "eth_rmii";
+ };
+
+ crs_dv_ref_clk-pinmux {
+ groups = "rmii_crs_dv_mfp", "rmii_ref_clk_mfp";
+ function = "eth_rmii";
+ };
+
+ ref_clk-pinconf {
+ groups = "rmii_ref_clk_drv";
+ drive-strength = <2>;
+ };
+
+ phy_clk-pinmux {
+ groups = "clko_25m_mfp";
+ function = "clko_25m";
+ };
+ };
};

/* uSD */
@@ -241,6 +273,30 @@ &mmc0 {
vqmmc-supply = <&sd_vcc>;
};

+&ethernet {
+ pinctrl-names = "default";
+ pinctrl-0 = <&ethernet_pins>;
+ phy-mode = "rmii";
+ phy-handle = <&eth_phy>;
+ status = "okay";
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ reset-gpios = <&pinctrl 88 GPIO_ACTIVE_LOW>; /* GPIOC24 */
+ reset-delay-us = <10000>;
+ reset-post-delay-us = <150000>;
+
+ eth_phy: ethernet-phy@3 {
+ reg = <0x3>;
+ max-speed = <100>;
+ interrupt-parent = <&sirq>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+};
+
&twd_timer {
status = "okay";
};
--
2.32.0