uboot/u-boot-stm32mp-2020.01/arch/arm/dts/am335x-draco.dts

/*
 * Support for Siemens DRACO board
 *
 * Copyright (C) 2014 - Lukas Stockmann <lukas.stockmann@siemens.com>
 *
 * This file is licensed under the terms of the GNU General Public License
 * version 2.  This program is licensed "as is" without any warranty of any
 * kind, whether express or implied.
 */

/dts-v1/;

#include "am33xx.dtsi"
#include "am335x-draco.dtsi"
#include <dt-bindings/input/input.h>

/ {
	model = "Siemens DRACO";
	compatible = "siemens,draco", "ti,am33xx";

	/* ethernet alias is needed for the MAC address passing from U-Boot */
	aliases {
		ethernet0 = &cpsw_emac0;
		mdio-gpio0 = &mdio0;
	};

	gpio-keys {
		compatible = "gpio-keys";
		button0 {
			label = "button0";
			gpios = <&gpio0 27 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_F1>; /* button0 */
		};
		button1 {
			label = "button1";
			gpios = <&gpio2 23 GPIO_ACTIVE_LOW>;
			linux,code = <KEY_F2>; /* button1 */
		};
	};

	ocp {
		debugss: debugss@4b000000 {
			compatible = "ti,debugss";
			ti,hwmods = "debugss";
			reg = <0x4b000000 1000000>;
			status = "disabled";
		};
	};
};

&am33xx_pinmux {
	pinctrl-names = "default";
	pinctrl-0 = <&gpio_mux_pins>;

	gpio_mux_pins: gpio_mux_pins {
		pinctrl-single,pins = <
			0x1d0 (PIN_INPUT | MUX_MODE0)	/* tms jtag */
			0x1d4 (PIN_INPUT | MUX_MODE0)	/* tdi jtag */
			0x1d8 (PIN_OUTPUT | MUX_MODE0)	/* tdo jtag */
			0x1dc (PIN_INPUT | MUX_MODE0)	/* tck jtag */
			0x1e0 (PIN_INPUT | MUX_MODE0)	/* trstn jtag */
		>;
	};

	cpsw_default: cpsw_default {
		pinctrl-single,pins = <
			0x0E8 (PIN_INPUT_PULLUP | MUX_MODE7)	/* lcd_plck FIX STO should be a OUTPUT driven high*/
			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_crs.rmii1_crs_dv */
			0x114 (PIN_OUTPUT | MUX_MODE1)		/* mii1_txen.mii1_txen */
			0x124 (PIN_OUTPUT | MUX_MODE1)		/* mii1_txd1.mii1_txd1 */
			0x128 (PIN_OUTPUT | MUX_MODE1)		/* mii1_txd0.mii1_txd0 */
			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd1.mii1_rxd1 */
			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE1)	/* mii1_rxd0.mii1_rxd0 */
			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE0)	/* rmii1_refclk.rmii1_refclk */
		>;
	};

	cpsw_sleep: cpsw_sleep {
		pinctrl-single,pins = <
			0x10c (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x124 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x128 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x13c (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x140 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x144 (PIN_INPUT_PULLDOWN | MUX_MODE7)
		>;
	};

	davinci_mdio_default: davinci_mdio_default {
		pinctrl-single,pins = <
			/* MDIO */
			0x148 (PIN_INPUT | SLEWCTRL_FAST | MUX_MODE0)	/* mdio_data.mdio_data */
			0x14c (PIN_OUTPUT | MUX_MODE0)			/* mdio_clk.mdio_clk */
		>;
	};

	davinci_mdio_sleep: davinci_mdio_sleep {
		pinctrl-single,pins = <
			/* MDIO reset value */
			0x148 (PIN_INPUT_PULLDOWN | MUX_MODE7)
			0x14c (PIN_INPUT_PULLDOWN | MUX_MODE7)
		>;
	};

	gpio_mdio_default: gpio_mdio_default {
		pinctrl-single,pins = <
			/* MDIO via GPIO */
			0x148 (PIN_INPUT | MUX_MODE7)	/* mdio_data.mdio_data GPIO0_0 */
			0x14c (PIN_OUTPUT | MUX_MODE7)	/* mdio_clk.mdio_clk GPIO0_1 */
		>;
	};
};

&mac {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&cpsw_default>;
	pinctrl-1 = <&cpsw_sleep>;
	slaves = <1>;			/* use only one emac if */

	mdio0: gpio {
		compatible = "virtual,mdio-gpio";
		pinctrl-names = "default";
		pinctrl-0 = <&gpio_mdio_default>;

		#address-cells = <1>;
		#size-cells = <0>;
		gpios = <&gpio0 1 GPIO_ACTIVE_HIGH	/* MDIO-CLK */
			 &gpio0 0 GPIO_ACTIVE_HIGH>;	/* MDIO-DATA */

		phy0: ethernet-phy@1 {
			reg = <0>;
		};
	};
};

/* Disable davinci/am335x mdio interface on this platform */
&davinci_mdio {
	pinctrl-names = "default", "sleep";
	pinctrl-0 = <&davinci_mdio_default>;
	pinctrl-1 = <&davinci_mdio_sleep>;
	status = "disabled";
};

&cpsw_emac0 {
	phy-handle = <&phy0>;
	phy-mode = "rmii";
};

&phy_sel {
	rmii-clock-ext;
};