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	memory@0 {
12		device_type = "memory";
13		reg = <0 0x10000000>;
14	};
15
16	leds {
17		act {
18			gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
19		};
20
21		pwr {
22			label = "PWR";
23			gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
24			default-state = "keep";
25			linux,default-trigger = "default-on";
26		};
27	};
28};
29
30&gpio {
31	/*
32	 * This is based on the unreleased schematic for the Model A+.
33	 *
34	 * Legend:
35	 * "NC" = not connected (no rail from the SoC)
36	 * "FOO" = GPIO line named "FOO" on the schematic
37	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
38	 */
39	gpio-line-names = "ID_SDA",
40			  "ID_SCL",
41			  "SDA1",
42			  "SCL1",
43			  "GPIO_GCLK",
44			  "GPIO5",
45			  "GPIO6",
46			  "SPI_CE1_N",
47			  "SPI_CE0_N",
48			  "SPI_MISO",
49			  "SPI_MOSI",
50			  "SPI_SCLK",
51			  "GPIO12",
52			  "GPIO13",
53			  /* Serial port */
54			  "TXD0",
55			  "RXD0",
56			  "GPIO16",
57			  "GPIO17",
58			  "GPIO18",
59			  "GPIO19",
60			  "GPIO20",
61			  "GPIO21",
62			  "GPIO22",
63			  "GPIO23",
64			  "GPIO24",
65			  "GPIO25",
66			  "GPIO26",
67			  "GPIO27",
68			  "SDA0",
69			  "SCL0",
70			  "NC", /* GPIO30 */
71			  "NC", /* GPIO31 */
72			  "CAM_GPIO1", /* GPIO32 */
73			  "NC", /* GPIO33 */
74			  "NC", /* GPIO34 */
75			  "PWR_LOW_N", /* GPIO35 */
76			  "NC", /* GPIO36 */
77			  "NC", /* GPIO37 */
78			  "USB_LIMIT", /* GPIO38 */
79			  "NC", /* GPIO39 */
80			  "PWM0_OUT", /* GPIO40 */
81			  "CAM_GPIO0", /* GPIO41 */
82			  "NC", /* GPIO42 */
83			  "NC", /* GPIO43 */
84			  "NC", /* GPIO44 */
85			  "PWM1_OUT", /* GPIO45 */
86			  "HDMI_HPD_N",
87			  "STATUS_LED",
88			  /* Used by SD Card */
89			  "SD_CLK_R",
90			  "SD_CMD_R",
91			  "SD_DATA0_R",
92			  "SD_DATA1_R",
93			  "SD_DATA2_R",
94			  "SD_DATA3_R";
95
96	pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
97
98	/* I2S interface */
99	i2s_alt0: i2s_alt0 {
100		brcm,pins = <18 19 20 21>;
101		brcm,function = <BCM2835_FSEL_ALT0>;
102	};
103};
104
105&hdmi {
106	hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
107	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
108	status = "okay";
109};
110
111&pwm {
112	pinctrl-names = "default";
113	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
114	status = "okay";
115};
116
117&sdhost {
118	pinctrl-names = "default";
119	pinctrl-0 = <&sdhost_gpio48>;
120	bus-width = <4>;
121	status = "okay";
122};
123
124&uart0 {
125	pinctrl-names = "default";
126	pinctrl-0 = <&uart0_gpio14>;
127	status = "okay";
128};
129