[PATCH V2 RFC 6/6] ARM: dts: bcm2835: Add Raspberry Pi Zero
From: Stefan Wahren <hidden>
Date: 2016-07-26 18:53:33
Also in:
linux-arm-kernel
Subsystem:
arm and arm64 soc sub-architectures (common parts), the rest · Maintainers:
Arnd Bergmann, Krzysztof Kozlowski, Alexandre Belloni, Linus Walleij, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2016-08-18 · Re: [PATCH V2 RFC 6/6] ARM: dts: bcm2835: Add Raspberry Pi Zero · John Youn <hidden>
- 2016-08-18 · Re: [PATCH V2 RFC 6/6] ARM: dts: bcm2835: Add Raspberry Pi Zero · Stefan Wahren <hidden>
- 2016-08-18 · Re: [PATCH V2 RFC 6/6] ARM: dts: bcm2835: Add Raspberry Pi Zero · John Youn <hidden>
- 2016-08-17 · Re: [PATCH V2 RFC 6/6] ARM: dts: bcm2835: Add Raspberry Pi Zero · Stefan Wahren <hidden>
- 2016-08-17 · Re: [PATCH V2 RFC 6/6] ARM: dts: bcm2835: Add Raspberry Pi Zero · John Youn <hidden>
The Raspberry Pi Zero is a minified version of model A+. It's notable there is no PWR LED and the ACT LED is inverted. Signed-off-by: Stefan Wahren <redacted> --- arch/arm/boot/dts/Makefile | 3 +- arch/arm/boot/dts/bcm2835-rpi-zero.dts | 57 ++++++++++++++++++++++++++++++++ 2 files changed, 59 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boot/dts/bcm2835-rpi-zero.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e38e7c9..cafa3b1 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile@@ -69,7 +69,8 @@ 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..12bc82d
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2835-rpi-zero.dts@@ -0,0 +1,57 @@ +/dts-v1/; +#include "bcm2835.dtsi" +#include "bcm2835-rpi.dtsi" + +/ { + compatible = "raspberrypi,model-zero", "brcm,bcm2835"; + model = "Raspberry Pi Zero"; + + leds { + act { + gpios = <&gpio 47 GPIO_ACTIVE_HIGH>; + }; + }; +}; + + +&usb { + dr_mode = "host"; + h-rx-fifo-size = <774>; + h-np-tx-fifo-size = <256>; + h-tx-fifo-size = <512>; +/* + * Settings for otg + * + dr_mode = "otg"; + h-rx-fifo-size = <774>; + h-np-tx-fifo-size = <32>; + h-tx-fifo-size = <0>; + g-np-tx-fifo-size = <16>; + g-rx-fifo-size = <256>; + g-tx-fifo-size = <256 128 128 64 64 64 32>; + * + * Settings for peripheral + * + dr_mode = "peripheral"; + h-rx-fifo-size = <774>; + h-np-tx-fifo-size = <0>; + h-tx-fifo-size = <0>; + g-np-tx-fifo-size = <16>; + g-rx-fifo-size = <256>; + g-tx-fifo-size = <256 128 128 64 64 64 32>; + */ +}; + +&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>; + }; +}; + +&hdmi { + hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>; +};
--
1.7.9.5
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