From 2dd2eff4a3bb8b1069b28f68c636f2cf03479638 Mon Sep 17 00:00:00 2001 From: Phil Elwell Date: Tue, 28 May 2019 16:23:51 +0100 Subject: [PATCH 509/773] BCM270X_DT: Create bcm2708-rpi-zero.dts The Pi Zero deserves a dedicated .dtb file - sharing the b-plus .dtb has been observed to cause an issue with the MAC address of some Ethernet dongles. See: https://github.com/raspberrypi/linux/issues/2990 Signed-off-by: Phil Elwell --- arch/arm/boot/dts/Makefile | 1 + arch/arm/boot/dts/bcm2708-rpi-zero.dts | 117 +++++++++++++++++++++++++ 2 files changed, 118 insertions(+) create mode 100644 arch/arm/boot/dts/bcm2708-rpi-zero.dts --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -4,6 +4,7 @@ dtb-$(CONFIG_ARCH_BCM2835) += \ bcm2708-rpi-b.dtb \ bcm2708-rpi-b-plus.dtb \ bcm2708-rpi-cm.dtb \ + bcm2708-rpi-zero.dtb \ bcm2708-rpi-zero-w.dtb \ bcm2709-rpi-2-b.dtb \ bcm2710-rpi-3-b.dtb \ --- /dev/null +++ b/arch/arm/boot/dts/bcm2708-rpi-zero.dts @@ -0,0 +1,117 @@ +/dts-v1/; + +#include "bcm2708.dtsi" +#include "bcm283x-rpi-csi1-2lane.dtsi" + +/ { + compatible = "raspberrypi,model-zero", "brcm,bcm2835"; + model = "Raspberry Pi Zero"; + + chosen { + bootargs = "coherent_pool=1M"; + }; +}; + +&gpio { + spi0_pins: spi0_pins { + brcm,pins = <9 10 11>; + brcm,function = <4>; /* alt0 */ + }; + + spi0_cs_pins: spi0_cs_pins { + brcm,pins = <8 7>; + brcm,function = <1>; /* output */ + }; + + i2c0_pins: i2c0 { + brcm,pins = <0 1>; + brcm,function = <4>; + }; + + i2c1_pins: i2c1 { + brcm,pins = <2 3>; + brcm,function = <4>; + }; + + i2s_pins: i2s { + brcm,pins = <18 19 20 21>; + brcm,function = <4>; /* alt0 */ + }; + + audio_pins: audio_pins { + brcm,pins = <>; + brcm,function = <>; + }; +}; + +&uart0 { + status = "okay"; +}; + +&spi0 { + pinctrl-names = "default"; + pinctrl-0 = <&spi0_pins &spi0_cs_pins>; + cs-gpios = <&gpio 8 1>, <&gpio 7 1>; + + spidev0: spidev@0{ + compatible = "spidev"; + reg = <0>; /* CE0 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <125000000>; + }; + + spidev1: spidev@1{ + compatible = "spidev"; + reg = <1>; /* CE1 */ + #address-cells = <1>; + #size-cells = <0>; + spi-max-frequency = <125000000>; + }; +}; + +&i2c0 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c0_pins>; + clock-frequency = <100000>; +}; + +&i2c1 { + pinctrl-names = "default"; + pinctrl-0 = <&i2c1_pins>; + clock-frequency = <100000>; +}; + +&i2c2 { + clock-frequency = <100000>; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&i2s_pins>; +}; + +&leds { + act_led: act { + label = "led0"; + linux,default-trigger = "mmc0"; + gpios = <&gpio 47 0>; + }; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +}; + +&audio { + pinctrl-names = "default"; + pinctrl-0 = <&audio_pins>; +}; + +/ { + __overrides__ { + act_led_gpio = <&act_led>,"gpios:4"; + act_led_activelow = <&act_led>,"gpios:8"; + act_led_trigger = <&act_led>,"linux,default-trigger"; + }; +};