xref: /linux/arch/arm/boot/dts/broadcom/bcm2835-rpi-a.dts (revision 8e07e0e3964ca4e23ce7b68e2096fe660a888942) 
1// SPDX-License-Identifier: GPL-2.0
2/dts-v1/;
3#include "bcm2835.dtsi"
4#include "bcm2835-rpi.dtsi"
5#include "bcm2835-rpi-common.dtsi"
6#include "bcm283x-rpi-led-deprecated.dtsi"
7#include "bcm283x-rpi-usb-host.dtsi"
8
9/ {
10	compatible = "raspberrypi,model-a", "brcm,bcm2835";
11	model = "Raspberry Pi Model A";
12
13	memory@0 {
14		device_type = "memory";
15		reg = <0 0x10000000>;
16	};
17};
18
19&gpio {
20	/*
21	 * Taken from Raspberry-Pi-Rev-1.0-Model-AB-Schematics.pdf
22	 * RPI00021 sheet 02
23	 *
24	 * Legend:
25	 * "FOO" = GPIO line named "FOO" on the schematic
26	 * "FOO_N" = GPIO line named "FOO" on schematic, active low
27	 */
28	gpio-line-names = "SDA0",
29			  "SCL0",
30			  "SDA1",
31			  "SCL1",
32			  "GPIO_GCLK",
33			  "CAM_GPIO1",
34			  "LAN_RUN",
35			  "SPI_CE1_N",
36			  "SPI_CE0_N",
37			  "SPI_MISO",
38			  "SPI_MOSI",
39			  "SPI_SCLK",
40			  "", /* GPIO12 */
41			  "", /* GPIO13 */
42			  /* Serial port */
43			  "TXD0",
44			  "RXD0",
45			  "STATUS_LED_N",
46			  "GPIO17",
47			  "GPIO18",
48			  "", /* GPIO19 */
49			  "", /* GPIO20 */
50			  "GPIO21",
51			  "GPIO22",
52			  "GPIO23",
53			  "GPIO24",
54			  "GPIO25",
55			  "", /* GPIO26 */
56			  "CAM_GPIO0",
57			  /* Binary number representing build/revision */
58			  "CONFIG0",
59			  "CONFIG1",
60			  "CONFIG2",
61			  "CONFIG3",
62			  "", /* GPIO32 */
63			  "", /* GPIO33 */
64			  "", /* GPIO34 */
65			  "", /* GPIO35 */
66			  "", /* GPIO36 */
67			  "", /* GPIO37 */
68			  "", /* GPIO38 */
69			  "", /* GPIO39 */
70			  "PWM0_OUT",
71			  "", /* GPIO41 */
72			  "", /* GPIO42 */
73			  "", /* GPIO43 */
74			  "", /* GPIO44 */
75			  "PWM1_OUT",
76			  "HDMI_HPD_P",
77			  "SD_CARD_DET",
78			  /* Used by SD Card */
79			  "SD_CLK_R",
80			  "SD_CMD_R",
81			  "SD_DATA0_R",
82			  "SD_DATA1_R",
83			  "SD_DATA2_R",
84			  "SD_DATA3_R";
85
86	pinctrl-names = "default";
87	pinctrl-0 = <&gpioout &alt0 &i2s_alt2>;
88
89	/* I2S interface */
90	i2s_alt2: i2s_alt2 {
91		brcm,pins = <28 29 30 31>;
92		brcm,function = <BCM2835_FSEL_ALT2>;
93	};
94};
95
96&hdmi {
97	hpd-gpios = <&gpio 46 GPIO_ACTIVE_HIGH>;
98	power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
99	status = "okay";
100};
101
102&led_act {
103	gpios = <&gpio 16 GPIO_ACTIVE_LOW>;
104};
105
106&pwm {
107	pinctrl-names = "default";
108	pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
109	status = "okay";
110};
111
112&sdhost {
113	pinctrl-names = "default";
114	pinctrl-0 = <&sdhost_gpio48>;
115	bus-width = <4>;
116	status = "okay";
117};
118
119&uart0 {
120	pinctrl-names = "default";
121	pinctrl-0 = <&uart0_gpio14>;
122	status = "okay";
123};
124