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149 lines
2.9 KiB
Diff
149 lines
2.9 KiB
Diff
From e819b50b0c384f11f4eaf6e1ea76030c320f4511 Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Tue, 28 May 2019 16:23:51 +0100
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Subject: [PATCH] BCM270X_DT: Create bcm2708-rpi-zero.dts
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The Pi Zero deserves a dedicated .dtb file - sharing the b-plus .dtb
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has been observed to cause an issue with the MAC address of some
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Ethernet dongles.
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See: https://github.com/raspberrypi/linux/issues/2990
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/Makefile | 1 +
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arch/arm/boot/dts/bcm2708-rpi-zero.dts | 117 +++++++++++++++++++++++++
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2 files changed, 118 insertions(+)
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create mode 100644 arch/arm/boot/dts/bcm2708-rpi-zero.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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@@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \
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bcm2708-rpi-b.dtb \
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bcm2708-rpi-b-plus.dtb \
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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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bcm2709-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/bcm2708-rpi-zero.dts
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@@ -0,0 +1,117 @@
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+/dts-v1/;
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+
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+#include "bcm2708.dtsi"
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+#include "bcm283x-rpi-csi1-2lane.dtsi"
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+
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+/ {
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+ compatible = "raspberrypi,model-zero", "brcm,bcm2835";
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+ model = "Raspberry Pi Zero";
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+
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+ chosen {
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+ bootargs = "coherent_pool=1M";
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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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+ 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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+&uart0 {
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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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+&i2c0 {
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&i2c0_pins>;
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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: act {
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+ label = "led0";
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+ linux,default-trigger = "mmc0";
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+ gpios = <&gpio 47 0>;
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+ };
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+};
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+
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+&hdmi {
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+ hpd-gpios = <&gpio 46 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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+};
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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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