Messages in this thread Patch in this message | | | From | Matthias Klein <> | Subject | [PATCH] ARM: bcm2835: add device tree for Raspberry Pi model B+ | Date | Tue, 28 Oct 2014 01:52:46 +0100 |
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The model B and B+ differ in the GPIO lines for ACT and PWR led. The PWR led on the B+ model is active low.
Signed-off-by: Matthias Klein <matthias.klein@linux.com> --- arch/arm/boot/dts/bcm2835-rpi-b-plus.dts | 64 ++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 arch/arm/boot/dts/bcm2835-rpi-b-plus.dts
diff --git a/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts new file mode 100644 index 0000000..c01d7cb --- /dev/null +++ b/arch/arm/boot/dts/bcm2835-rpi-b-plus.dts @@ -0,0 +1,64 @@ +/dts-v1/; +/include/ "bcm2835.dtsi" + +/ { + compatible = "raspberrypi,model-b-plus", "brcm,bcm2835"; + model = "Raspberry Pi Model B+"; + + memory { + reg = <0 0x10000000>; + }; + + leds { + compatible = "gpio-leds"; + + act { + label = "ACT"; + gpios = <&gpio 47 1>; + default-state = "keep"; + linux,default-trigger = "heartbeat"; + }; + + pwr { + label = "PWR"; + gpios = <&gpio 35 0>; + default-state = "keep"; + linux,default-trigger = "default-on"; + }; + }; +}; + +&gpio { + pinctrl-names = "default"; + pinctrl-0 = <&gpioout &alt0 &alt3>; + + gpioout: gpioout { + brcm,pins = <6>; + brcm,function = <1>; /* GPIO out */ + }; + + alt0: alt0 { + brcm,pins = <0 1 2 3 4 5 7 8 9 10 11 14 15 40 45>; + brcm,function = <4>; /* alt0 */ + }; + + alt3: alt3 { + brcm,pins = <48 49 50 51 52 53>; + brcm,function = <7>; /* alt3 */ + }; +}; + +&i2c0 { + status = "okay"; + clock-frequency = <100000>; +}; + +&i2c1 { + status = "okay"; + clock-frequency = <100000>; +}; + +&mmc { + status = "okay"; + bus-width = <4>; +}; -- 2.1.2
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