220 lines
4.7 KiB
Diff
220 lines
4.7 KiB
Diff
From ab5164dbd0241da27ec87eff34408dd97d9658c0 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.com>
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Date: Thu, 9 Sep 2021 10:37:15 +0100
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Subject: [PATCH] ARM: dts: Add Pi Zero 2 support
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Signed-off-by: Phil Elwell <phil@raspberrypi.com>
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---
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arch/arm/boot/dts/Makefile | 1 +
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arch/arm/boot/dts/bcm2710-rpi-zero-2.dts | 177 ++++++++++++++++++
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arch/arm64/boot/dts/broadcom/Makefile | 1 +
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.../boot/dts/broadcom/bcm2710-rpi-zero-2.dts | 1 +
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4 files changed, 180 insertions(+)
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create mode 100644 arch/arm/boot/dts/bcm2710-rpi-zero-2.dts
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create mode 100644 arch/arm64/boot/dts/broadcom/bcm2710-rpi-zero-2.dts
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--- a/arch/arm/boot/dts/Makefile
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+++ b/arch/arm/boot/dts/Makefile
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@@ -7,6 +7,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
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bcm2708-rpi-cm.dtb \
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bcm2708-rpi-zero.dtb \
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bcm2708-rpi-zero-w.dtb \
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+ bcm2710-rpi-zero-2.dtb \
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bcm2709-rpi-2-b.dtb \
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bcm2710-rpi-2-b.dtb \
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bcm2710-rpi-3-b.dtb \
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--- /dev/null
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+++ b/arch/arm/boot/dts/bcm2710-rpi-zero-2.dts
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@@ -0,0 +1,177 @@
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+/dts-v1/;
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+
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+#include "bcm2710.dtsi"
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+#include "bcm2709-rpi.dtsi"
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+#include "bcm283x-rpi-csi1-2lane.dtsi"
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+#include "bcm283x-rpi-i2c0mux_0_44.dtsi"
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+#include "bcm2708-rpi-bt.dtsi"
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+#include "bcm283x-rpi-cam1-regulator.dtsi"
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+
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+/ {
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+ compatible = "raspberrypi,model-zero-2", "brcm,bcm2837";
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+ model = "Raspberry Pi Zero 2";
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+
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+ chosen {
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+ bootargs = "coherent_pool=1M 8250.nr_uarts=1 snd_bcm2835.enable_compat_alsa=0 snd_bcm2835.enable_hdmi=1";
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+ };
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+
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+ aliases {
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+ serial0 = &uart1;
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+ serial1 = &uart0;
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+ mmc1 = &mmcnr;
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+ };
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+};
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+
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+&gpio {
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+ spi0_pins: spi0_pins {
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+ brcm,pins = <9 10 11>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+
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+ spi0_cs_pins: spi0_cs_pins {
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+ brcm,pins = <8 7>;
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+ brcm,function = <1>; /* output */
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+ };
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+
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+ i2c0_pins: i2c0 {
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+ brcm,pins = <0 1>;
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+ brcm,function = <4>;
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+ };
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+
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+ i2c1_pins: i2c1 {
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+ brcm,pins = <2 3>;
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+ brcm,function = <4>;
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+ };
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+
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+ i2s_pins: i2s {
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+ brcm,pins = <18 19 20 21>;
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+ brcm,function = <4>; /* alt0 */
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+ };
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+
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+ sdio_pins: sdio_pins {
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+ brcm,pins = <34 35 36 37 38 39>;
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+ brcm,function = <7>; // alt3 = SD1
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+ brcm,pull = <0 2 2 2 2 2>;
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+ };
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+
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+ bt_pins: bt_pins {
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+ brcm,pins = <43>;
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+ brcm,function = <4>; /* alt0:GPCLK2 */
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+ brcm,pull = <0>;
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+ };
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+
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+ uart0_pins: uart0_pins {
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+ brcm,pins = <30 31 32 33>;
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+ brcm,function = <7>; /* alt3=UART0 */
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+ brcm,pull = <2 0 0 2>; /* up none none up */
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+ };
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+
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+ uart1_pins: uart1_pins {
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+ brcm,pins;
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+ brcm,function;
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+ brcm,pull;
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+ };
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+
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+ audio_pins: audio_pins {
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+ brcm,pins = <>;
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+ brcm,function = <>;
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+ };
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+};
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+
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+&mmcnr {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&sdio_pins>;
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+ bus-width = <4>;
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+ status = "okay";
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+};
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+
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+&uart0 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&uart0_pins &bt_pins>;
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+ status = "okay";
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+};
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+
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+&uart1 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&uart1_pins>;
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+ status = "okay";
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+};
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+
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+&spi0 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
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+ cs-gpios = <&gpio 8 1>, <&gpio 7 1>;
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+
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+ spidev0: spidev@0{
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+ compatible = "spidev";
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+ reg = <0>; /* CE0 */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ spi-max-frequency = <125000000>;
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+ };
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+
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+ spidev1: spidev@1{
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+ compatible = "spidev";
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+ reg = <1>; /* CE1 */
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ spi-max-frequency = <125000000>;
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+ };
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+};
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+
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+&i2c0if {
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+ clock-frequency = <100000>;
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+};
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+
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+&i2c1 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c1_pins>;
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+ clock-frequency = <100000>;
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+};
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+
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+&i2c2 {
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+ clock-frequency = <100000>;
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+};
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+
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+&i2s {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2s_pins>;
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+};
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+
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+&leds {
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+ act_led: led-act {
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+ label = "led0";
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+ linux,default-trigger = "actpwr";
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+ gpios = <&gpio 29 GPIO_ACTIVE_LOW>;
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+ };
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+};
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+
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+&hdmi {
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+ hpd-gpios = <&gpio 28 GPIO_ACTIVE_LOW>;
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+};
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+
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+&audio {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&audio_pins>;
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+ brcm,disable-headphones = <1>;
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+};
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+
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+&bt {
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+ shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
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+};
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+
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+&minibt {
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+ shutdown-gpios = <&gpio 42 GPIO_ACTIVE_HIGH>;
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+};
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+
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+&cam1_reg {
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+ gpio = <&gpio 40 GPIO_ACTIVE_HIGH>;
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+};
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+
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+/ {
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+ __overrides__ {
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+ act_led_gpio = <&act_led>,"gpios:4";
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+ act_led_activelow = <&act_led>,"gpios:8";
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+ act_led_trigger = <&act_led>,"linux,default-trigger";
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+ };
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+};
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--- a/arch/arm64/boot/dts/broadcom/Makefile
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+++ b/arch/arm64/boot/dts/broadcom/Makefile
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@@ -5,6 +5,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += bcm2711-rp
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bcm2837-rpi-3-b.dtb \
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bcm2837-rpi-3-b-plus.dtb \
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bcm2837-rpi-cm3-io3.dtb
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+dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-zero-2.dtb
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dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-2-b.dtb
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dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b.dtb
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dtb-$(CONFIG_ARCH_BCM2835) += bcm2710-rpi-3-b-plus.dtb
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--- /dev/null
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+++ b/arch/arm64/boot/dts/broadcom/bcm2710-rpi-zero-2.dts
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@@ -0,0 +1 @@
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+#include "../../../../arm/boot/dts/bcm2710-rpi-zero-2.dts"
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