xref: /linux/arch/arm64/boot/dts/freescale/imx8mp-verdin-dev.dtsi (revision da1d9caf95def6f0320819cf941c9fd1069ba9e1) 
1// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
2/*
3 * Copyright 2022 Toradex
4 */
5
6#include "imx8mp-verdin-dahlia.dtsi"
7
8/ {
9	/* TODO: Audio Codec */
10
11	reg_eth2phy: regulator-eth2phy {
12		compatible = "regulator-fixed";
13		enable-active-high;
14		gpio = <&gpio_expander_21 4 GPIO_ACTIVE_HIGH>; /* ETH_PWR_EN */
15		off-on-delay = <500000>;
16		regulator-max-microvolt = <3300000>;
17		regulator-min-microvolt = <3300000>;
18		regulator-name = "+V3.3_ETH";
19		startup-delay-us = <200000>;
20		vin-supply = <&reg_3p3v>;
21	};
22};
23
24&fec {
25	phy-supply = <&reg_eth2phy>;
26	status = "okay";
27};
28
29&gpio_expander_21 {
30	status = "okay";
31	vcc-supply = <&reg_1p8v>;
32};
33
34/* TODO: Verdin I2C_1 with Audio Codec */
35
36/* Verdin UART_1, connector X50 through RS485 transceiver */
37&uart1 {
38	linux,rs485-enabled-at-boot-time;
39	rs485-rts-active-low;
40	rs485-rx-during-tx;
41};
42
43/* Limit frequency on dev board due to long traces and bad signal integrity */
44&usdhc2 {
45	max-frequency = <100000000>;
46};
47