1// SPDX-License-Identifier: GPL-2.0
2/dts-v1/;
3#include "bcm2835.dtsi"
4#include "bcm2835-rpi.dtsi"
5#include "bcm283x-rpi-usb-host.dtsi"
6
7/ {
8	compatible = "raspberrypi,model-a-plus", "brcm,bcm2835";
9	model = "Raspberry Pi Model A+";
10
11	leds {
12		act {
13			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
14		};
15
16		pwr {
17			label = "PWR";
18			gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
19			default-state = "keep";
20			linux,default-trigger = "default-on";
21		};
22	};
23};
24
25&gpio {
26	/*
27	 * This is based on the unreleased schematic for the Model A+.
28	 *
29	 * Legend:
30	 * "NC" = not connected (no rail from the SoC)
31	 * "FOO" = GPIO line named "FOO" on the schematic
32	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
33	 */
34	gpio-line-names = "ID_SDA",
35			  "ID_SCL",
36			  "SDA1",
37			  "SCL1",
38			  "GPIO_GCLK",
39			  "GPIO5",
40			  "GPIO6",
41			  "SPI_CE1_N",
42			  "SPI_CE0_N",
43			  "SPI_MISO",
44			  "SPI_MOSI",
45			  "SPI_SCLK",
46			  "GPIO12",
47			  "GPIO13",
48			  /* Serial port */
49			  "TXD0",
50			  "RXD0",
51			  "GPIO16",
52			  "GPIO17",
53			  "GPIO18",
54			  "GPIO19",
55			  "GPIO20",
56			  "GPIO21",
57			  "GPIO22",
58			  "GPIO23",
59			  "GPIO24",
60			  "GPIO25",
61			  "GPIO26",
62			  "GPIO27",
63			  "SDA0",
64			  "SCL0",
65			  "NC", /* GPIO30 */
66			  "NC", /* GPIO31 */
67			  "CAM_GPIO1", /* GPIO32 */
68			  "NC", /* GPIO33 */
69			  "NC", /* GPIO34 */
70			  "PWR_LOW_N", /* GPIO35 */
71			  "NC", /* GPIO36 */
72			  "NC", /* GPIO37 */
73			  "USB_LIMIT", /* GPIO38 */
74			  "NC", /* GPIO39 */
75			  "PWM0_OUT", /* GPIO40 */
76			  "CAM_GPIO0", /* GPIO41 */
77			  "NC", /* GPIO42 */
78			  "NC", /* GPIO43 */
79			  "NC", /* GPIO44 */
80			  "PWM1_OUT", /* GPIO45 */
81			  "HDMI_HPD_N",
82			  "STATUS_LED",
83			  /* Used by SD Card */
84			  "SD_CLK_R",
85			  "SD_CMD_R",
86			  "SD_DATA0_R",
87			  "SD_DATA1_R",
88			  "SD_DATA2_R",
89			  "SD_DATA3_R";
90
91	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
92
93	/* I2S interface */
94	i2s_alt0: i2s_alt0 {
95		brcm,pins = <18 19 20 21>;
96		brcm,function = <BCM2835_FSEL_ALT0>;
97	};
98};
99
100&hdmi {
101	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
102};
103
104&pwm {
105	pinctrl-names = "default";
106	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
107	status = "okay";
108};
109
110&uart0 {
111	pinctrl-names = "default";
112	pinctrl-0 = <&uart0_gpio14>;
113	status = "okay";
114};
115