linux/arch/arm/boot/dts/bcm2835-rpi-zero.dts
Stefan Wahren b02d6197c2 ARM: dts: bcm2835: Fix labels for GPIO 0,1
According to the schematics for all RPis with a 40 pin header,
the GPIOs 0 and 1 are labeled as ID_SD and ID_SC. In order to
clarify that is a I2C bus, append the third letter.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-02-01 11:55:34 +01:00

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2016 Stefan Wahren <stefan.wahren@i2se.com>
*/
/dts-v1/;
#include "bcm2835.dtsi"
#include "bcm2835-rpi.dtsi"
#include "bcm283x-rpi-usb-otg.dtsi"
/ {
compatible = "raspberrypi,model-zero", "brcm,bcm2835";
model = "Raspberry Pi Zero";
leds {
act {
gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
};
};
};
&gpio {
/*
* This is based on the official GPU firmware DT blob.
*
* Legend:
* "NC" = not connected (no rail from the SoC)
* "FOO" = GPIO line named "FOO" on the schematic
* "FOO_N" = GPIO line named "FOO" on schematic, active low
*/
gpio-line-names = "ID_SDA",
"ID_SCL",
"SDA1",
"SCL1",
"GPIO_GCLK",
"GPIO5",
"GPIO6",
"SPI_CE1_N",
"SPI_CE0_N",
"SPI_MISO",
"SPI_MOSI",
"SPI_SCLK",
"GPIO12",
"GPIO13",
/* Serial port */
"TXD0",
"RXD0",
"GPIO16",
"GPIO17",
"GPIO18",
"GPIO19",
"GPIO20",
"GPIO21",
"GPIO22",
"GPIO23",
"GPIO24",
"GPIO25",
"GPIO26",
"GPIO27",
"SDA0",
"SCL0",
"NC", /* GPIO30 */
"NC", /* GPIO31 */
"CAM_GPIO1", /* GPIO32 */
"NC", /* GPIO33 */
"NC", /* GPIO34 */
"NC", /* GPIO35 */
"NC", /* GPIO36 */
"NC", /* GPIO37 */
"NC", /* GPIO38 */
"NC", /* GPIO39 */
"NC", /* GPIO40 */
"CAM_GPIO0", /* GPIO41 */
"NC", /* GPIO42 */
"NC", /* GPIO43 */
"NC", /* GPIO44 */
"NC", /* GPIO45 */
"HDMI_HPD_N",
"STATUS_LED_N",
/* Used by SD Card */
"SD_CLK_R",
"SD_CMD_R",
"SD_DATA0_R",
"SD_DATA1_R",
"SD_DATA2_R",
"SD_DATA3_R";
pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
/* I2S interface */
i2s_alt0: i2s_alt0 {
brcm,pins = <18 19 20 21>;
brcm,function = <BCM2835_FSEL_ALT0>;
};
};
&hdmi {
hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_gpio14>;
status = "okay";
};