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 device_type = "memory";
9 reg = <0 0x40000000>;
10 };
11
12 reg_3v3: fixed-regulator {
13 compatible = "regulator-fixed";
14 regulator-name = "3V3";
15 regulator-min-microvolt = <3300000>;
16 regulator-max-microvolt = <3300000>;
17 regulator-always-on;
18 };
19
20 reg_1v8: fixed-regulator {
21 compatible = "regulator-fixed";
22 regulator-name = "1V8";
23 regulator-min-microvolt = <1800000>;
24 regulator-max-microvolt = <1800000>;
25 regulator-always-on;
26 };
27 };
28
29 &firmware {
30 expgpio: gpio {
31 compatible = "raspberrypi,firmware-gpio";
32 gpio-controller;
33 #gpio-cells = <2>;
34 gpio-line-names = "HDMI_HPD_N",
35 "EMMC_EN_N",
36 "",
37 "",
38 "",
39 "",
40 "",
41 "";
42 status = "okay";
43 };
44 };
45
46 &sdhost {
47 pinctrl-names = "default";
48 pinctrl-0 = <&sdhost_gpio48>;
49 bus-width = <4>;
50 vmmc-supply = <®_3v3>;
51 vqmmc-supply = <®_1v8>;
52 status = "okay";
53 };
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