60c833d566
There might be headless setups of the Compute Module without HDMI, so better enable HDMI at board level. Btw this allows moving HDMI base definition into upcoming bcm2835-common.dtsi. Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Reviewed-by: Eric Anholt <eric@anholt.net>
179 lines
3.2 KiB
Plaintext
179 lines
3.2 KiB
Plaintext
// SPDX-License-Identifier: GPL-2.0
|
|
/dts-v1/;
|
|
#include "bcm2837.dtsi"
|
|
#include "bcm2836-rpi.dtsi"
|
|
#include "bcm283x-rpi-usb-host.dtsi"
|
|
|
|
/ {
|
|
compatible = "raspberrypi,3-model-a-plus", "brcm,bcm2837";
|
|
model = "Raspberry Pi 3 Model A+";
|
|
|
|
chosen {
|
|
/* 8250 auxiliary UART instead of pl011 */
|
|
stdout-path = "serial1:115200n8";
|
|
};
|
|
|
|
memory@0 {
|
|
device_type = "memory";
|
|
reg = <0 0x20000000>;
|
|
};
|
|
|
|
leds {
|
|
act {
|
|
gpios = <&gpio 29 GPIO_ACTIVE_HIGH>;
|
|
};
|
|
|
|
pwr {
|
|
label = "PWR";
|
|
gpios = <&expgpio 2 GPIO_ACTIVE_LOW>;
|
|
};
|
|
};
|
|
};
|
|
|
|
&firmware {
|
|
expgpio: gpio {
|
|
compatible = "raspberrypi,firmware-gpio";
|
|
gpio-controller;
|
|
#gpio-cells = <2>;
|
|
gpio-line-names = "",
|
|
"BT_WL_ON",
|
|
"STATUS_LED_R",
|
|
"",
|
|
"",
|
|
"CAM_GPIO0",
|
|
"CAM_GPIO1",
|
|
"";
|
|
status = "okay";
|
|
};
|
|
};
|
|
|
|
&gpio {
|
|
/*
|
|
* This is mostly 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 */
|
|
"TXD1",
|
|
"RXD1",
|
|
"GPIO16",
|
|
"GPIO17",
|
|
"GPIO18",
|
|
"GPIO19",
|
|
"GPIO20",
|
|
"GPIO21",
|
|
"GPIO22",
|
|
"GPIO23",
|
|
"GPIO24",
|
|
"GPIO25",
|
|
"GPIO26",
|
|
"GPIO27",
|
|
"HDMI_HPD_N",
|
|
"STATUS_LED_G",
|
|
/* Used by BT module */
|
|
"CTS0",
|
|
"RTS0",
|
|
"TXD0",
|
|
"RXD0",
|
|
/* Used by Wifi */
|
|
"SD1_CLK",
|
|
"SD1_CMD",
|
|
"SD1_DATA0",
|
|
"SD1_DATA1",
|
|
"SD1_DATA2",
|
|
"SD1_DATA3",
|
|
"PWM0_OUT",
|
|
"PWM1_OUT",
|
|
"", /* GPIO42 */
|
|
"WIFI_CLK",
|
|
"SDA0",
|
|
"SCL0",
|
|
"SMPS_SCL",
|
|
"SMPS_SDA",
|
|
/* Used by SD Card */
|
|
"SD_CLK_R",
|
|
"SD_CMD_R",
|
|
"SD_DATA0_R",
|
|
"SD_DATA1_R",
|
|
"SD_DATA2_R",
|
|
"SD_DATA3_R";
|
|
};
|
|
|
|
&hdmi {
|
|
hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
|
|
power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
|
|
status = "okay";
|
|
};
|
|
|
|
&pwm {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio41>;
|
|
status = "okay";
|
|
};
|
|
|
|
/*
|
|
* SDHCI is used to control the SDIO for wireless
|
|
*
|
|
* WL_REG_ON and BT_REG_ON of the CYW43455 Wifi/BT module are driven
|
|
* by a single GPIO. We can't give GPIO control to one of the drivers,
|
|
* otherwise the other part would get unexpectedly disturbed.
|
|
*/
|
|
&sdhci {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&emmc_gpio34>;
|
|
status = "okay";
|
|
bus-width = <4>;
|
|
non-removable;
|
|
|
|
brcmf: wifi@1 {
|
|
reg = <1>;
|
|
compatible = "brcm,bcm4329-fmac";
|
|
};
|
|
};
|
|
|
|
/* SDHOST is used to drive the SD card */
|
|
&sdhost {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&sdhost_gpio48>;
|
|
status = "okay";
|
|
bus-width = <4>;
|
|
};
|
|
|
|
/* uart0 communicates with the BT module */
|
|
&uart0 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&uart0_ctsrts_gpio30 &uart0_gpio32 &gpclk2_gpio43>;
|
|
status = "okay";
|
|
|
|
bluetooth {
|
|
compatible = "brcm,bcm43438-bt";
|
|
max-speed = <2000000>;
|
|
};
|
|
};
|
|
|
|
/* uart1 is mapped to the pin header */
|
|
&uart1 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&uart1_gpio14>;
|
|
status = "okay";
|
|
};
|