805b4db807
The Raspberry Pi board has one GPIO-controlled LED labeled "ACT". Add it to the DT via the gpio-leds driver, so users can control it from userspace. If CONFIG_LEDS_TRIGGER_HEARTBEAT is set, the LED will also signal some sign of life. The GPIO circuitry is low-active. And as the bootloader may decide to switch the LED on at boot time, the default state is 'keep'. Signed-off-by: Daniel Mack <zonque@gmail.com> Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
53 lines
764 B
Plaintext
53 lines
764 B
Plaintext
/dts-v1/;
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/include/ "bcm2835.dtsi"
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/ {
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compatible = "raspberrypi,model-b", "brcm,bcm2835";
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model = "Raspberry Pi Model B";
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memory {
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reg = <0 0x10000000>;
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};
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leds {
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compatible = "gpio-leds";
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act {
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label = "ACT";
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gpios = <&gpio 16 1>;
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default-state = "keep";
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linux,default-trigger = "heartbeat";
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};
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};
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};
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&gpio {
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pinctrl-names = "default";
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pinctrl-0 = <&alt0 &alt3>;
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alt0: alt0 {
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brcm,pins = <0 1 2 3 4 5 6 7 8 9 10 11 14 15 40 45>;
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brcm,function = <4>; /* alt0 */
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};
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alt3: alt3 {
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brcm,pins = <48 49 50 51 52 53>;
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brcm,function = <7>; /* alt3 */
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};
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};
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&i2c0 {
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status = "okay";
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clock-frequency = <100000>;
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};
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&i2c1 {
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status = "okay";
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clock-frequency = <100000>;
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};
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&sdhci {
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status = "okay";
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bus-width = <4>;
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};
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