Re: [PATCH] ARM: bcm2835: dt: Add Raspberry Pi Zero
From: Noralf Trønnes <hidden>
Date: 2016-02-04 08:49:23
Den 04.02.2016 08:39, skrev Lubomir Rintel:
Notable difference from the other Raspberry Pi boards is the lack of PWR LED.
Another difference is that the ACT led is inverted. Downstream decided to keep it [1] like that making it double as a power indicator and an inverted disk indicator. Noralf. [1] https://github.com/raspberrypi/linux/pull/1239
quoted hunk
Signed-off-by: Lubomir Rintel <redacted> --- arch/arm/boot/dts/Makefile | 3 ++- arch/arm/boot/dts/bcm2835-rpi-zero.dts | 24 ++++++++++++++++++++++++ 2 files changed, 26 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/bcm2835-rpi-zero.dtsdiff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index d000814..5d38b88 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile@@ -64,7 +64,8 @@ dtb-$(CONFIG_ARCH_BCM2835) += \ bcm2835-rpi-b-rev2.dtb \ bcm2835-rpi-b-plus.dtb \ bcm2835-rpi-a-plus.dtb \ - bcm2836-rpi-2-b.dtb + bcm2836-rpi-2-b.dtb \ + bcm2835-rpi-zero.dtb dtb-$(CONFIG_ARCH_BCM_5301X) += \ bcm4708-asus-rt-ac56u.dtb \ bcm4708-asus-rt-ac68u.dtb \diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero.dts b/arch/arm/boot/dts/bcm2835-rpi-zero.dts new file mode 100644 index 0000000..f9afc1a --- /dev/null +++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts@@ -0,0 +1,24 @@ +/dts-v1/; +#include "bcm2835.dtsi" +#include "bcm2835-rpi.dtsi" + +/ { + compatible = "raspberrypi,model-zero", "brcm,bcm2835"; + model = "Raspberry Pi Zero"; + + leds { + act { + gpios = <&gpio 47 0>; + }; + }; +}; + +&gpio { + pinctrl-0 = <&gpioout &alt0 &i2s_alt0 &alt3>; + + /* I2S interface */ + i2s_alt0: i2s_alt0 { + brcm,pins = <18 19 20 21>; + brcm,function = <BCM2835_FSEL_ALT0>; + }; +};
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