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ARM: dts: Add Raspberry Pi Zero 2 W

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The Raspberry Pi Zero 2 W mostly bases on the Raspberry Pi Zero W with
the following differences:
* Broadcom BCM2710A1, quad-core 64-bit SoC @ 1 GHz
* Synaptics BCM43436 (reported as BCM43430B0) IEEE 802.11b/g/n wireless LAN

Contrary to the Raspberry Pi 3 boards there is no GPIO expander.

Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
This commit is contained in:
Stefan Wahren 2022-02-01 18:27:46 +01:00 committed by Florian Fainelli
parent e5eb80f0c0
commit 21f9efbc5e
2 changed files with 137 additions and 0 deletions
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1
arch/arm/boot/dts/Makefile
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@ -93,6 +93,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
bcm2837-rpi-3-b.dtb \
bcm2837-rpi-3-b-plus.dtb \
bcm2837-rpi-cm3-io3.dtb \
bcm2837-rpi-zero-2-w.dtb \
bcm2711-rpi-400.dtb \
bcm2711-rpi-4-b.dtb \
bcm2711-rpi-cm4-io.dtb \

136
arch/arm/boot/dts/bcm2837-rpi-zero-2-w.dts Normal file
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@ -0,0 +1,136 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2022 Stefan Wahren <stefan.wahren@i2se.com>
*/
/dts-v1/;
#include "bcm2837.dtsi"
#include "bcm2836-rpi.dtsi"
#include "bcm283x-rpi-usb-otg.dtsi"
#include "bcm283x-rpi-wifi-bt.dtsi"
/ {
compatible = "raspberrypi,model-zero-2-w", "brcm,bcm2837";
model = "Raspberry Pi Zero 2 W";
memory@0 {
device_type = "memory";
reg = <0 0x20000000>;
};
chosen {
/* 8250 auxiliary UART instead of pl011 */
stdout-path = "serial1:115200n8";
};
leds {
led-act {
gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
};
};
};
&bt {
shutdown-gpios = <&gpio 42 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",
"HDMI_HPD_N",
"STATUS_LED_N",
"NC", /* GPIO30 */
"NC", /* GPIO31 */
"NC", /* GPIO32 */
"NC", /* GPIO33 */
"NC", /* GPIO34 */
"NC", /* GPIO35 */
"NC", /* GPIO36 */
"NC", /* GPIO37 */
"NC", /* GPIO38 */
"NC", /* GPIO39 */
"CAM_GPIO0", /* GPIO40 */
"WL_ON", /* GPIO41 */
"BT_ON", /* GPIO42 */
"WIFI_CLK", /* GPIO43 */
"SDA0", /* GPIO44 */
"SCL0", /* GPIO45 */
"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";
pinctrl-0 = <&gpioout &alt0>;
};
&hdmi {
hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
power-domains = <&power RPI_POWER_DOMAIN_HDMI>;
status = "okay";
};
&sdhci {
pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>;
};
&sdhost {
pinctrl-names = "default";
pinctrl-0 = <&sdhost_gpio48>;
bus-width = <4>;
status = "okay";
};
&uart0 {
pinctrl-names = "default";
pinctrl-0 = <&uart0_gpio32 &uart0_ctsrts_gpio30>;
};
&uart1 {
pinctrl-names = "default";
pinctrl-0 = <&uart1_gpio14>;
status = "okay";
};
&wifi_pwrseq {
reset-gpios = <&gpio 41 GPIO_ACTIVE_LOW>;
};