1// SPDX-License-Identifier: GPL-2.0
2/dts-v1/;
3#include "bcm2837.dtsi"
4#include "bcm2836-rpi.dtsi"
5
6/ {
7	memory@0 {
8		reg = <0 0x40000000>;
9	};
10
11	reg_3v3: fixed-regulator {
12		compatible = "regulator-fixed";
13		regulator-name = "3V3";
14		regulator-min-microvolt = <3300000>;
15		regulator-max-microvolt = <3300000>;
16		regulator-always-on;
17	};
18
19	reg_1v8: fixed-regulator {
20		compatible = "regulator-fixed";
21		regulator-name = "1V8";
22		regulator-min-microvolt = <1800000>;
23		regulator-max-microvolt = <1800000>;
24		regulator-always-on;
25	};
26};
27
28&firmware {
29	expgpio: gpio {
30		compatible = "raspberrypi,firmware-gpio";
31		gpio-controller;
32		#gpio-cells = <2>;
33		gpio-line-names = "HDMI_HPD_N",
34				  "EMMC_EN_N",
35				  "NC",
36				  "NC",
37				  "NC",
38				  "NC",
39				  "NC",
40				  "NC";
41		status = "okay";
42	};
43};
44
45&sdhost {
46	pinctrl-names = "default";
47	pinctrl-0 = <&sdhost_gpio48>;
48	bus-width = <4>;
49	vmmc-supply = <&reg_3v3>;
50	vqmmc-supply = <&reg_1v8>;
51	status = "okay";
52};
53