[PATCH 2/2] ARM: dts: owl-s500-roseapplepi: Add ethernet support
Manivannan Sadhasivam
mani at kernel.org
Mon Jun 28 00:28:17 PDT 2021
From: Cristian Ciocaltea <cristian.ciocaltea at gmail.com>
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 at gmail.com>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam at linaro.org>
Link: https://lore.kernel.org/r/d0e1fbf81984127f0352eb740c7129424b5e40f9.1623401998.git.cristian.ciocaltea@gmail.com
Signed-off-by: Manivannan Sadhasivam <mani at kernel.org>
---
arch/arm/boot/dts/owl-s500-roseapplepi.dts | 45 ++++++++++++++++++++++
1 file changed, 45 insertions(+)
diff --git a/arch/arm/boot/dts/owl-s500-roseapplepi.dts b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
index b8c5db2344aa..eb555f385283 100644
--- a/arch/arm/boot/dts/owl-s500-roseapplepi.dts
+++ b/arch/arm/boot/dts/owl-s500-roseapplepi.dts
@@ -225,6 +225,27 @@ bias1-pinconf {
bias-pull-down;
};
};
+
+ ethernet_pins: ethernet-pins {
+ eth_rmii-pinmux {
+ groups = "rmii_txd0_mfp", "rmii_txd1_mfp",
+ "rmii_rxd0_mfp", "rmii_rxd1_mfp",
+ "rmii_txen_mfp", "rmii_rxen_mfp",
+ "rmii_crs_dv_mfp", "rmii_ref_clk_mfp";
+ function = "eth_rmii";
+ };
+
+ phy_clk-pinmux {
+ groups = "clko_25m_mfp";
+ function = "clko_25m";
+ };
+
+ ref_clk-pinconf {
+ groups = "rmii_ref_clk_drv";
+ drive-strength = <2>;
+ };
+
+ };
};
/* uSD */
@@ -241,6 +262,30 @@ &mmc0 {
vqmmc-supply = <&sd_vcc>;
};
+ðernet {
+ pinctrl-names = "default";
+ pinctrl-0 = <ðernet_pins>;
+ phy-mode = "rmii";
+ phy-handle = <ð_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 at 3 {
+ reg = <0x3>;
+ max-speed = <100>;
+ interrupt-parent = <&sirq>;
+ interrupts = <0 IRQ_TYPE_LEVEL_LOW>;
+ };
+ };
+};
+
&twd_timer {
status = "okay";
};
--
2.25.1
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