c4bb978217
All RPi 1 and 2 boards used the PWM (audio out) on pin 40 and 45. So it was easy to define them in bcm2835-rpi.dtsi. Starting with RPi 3 this wont work anymore, because it uses pin 40 and 41. Furthermore the Zero variants doesn't have audio out. This patch fixes this pin conflict by moving the PWM node to the board-level. Change summary: RPi 3 B: PWM1 45 -> 41 Zero, Zero W: PWM disabled all other: no functional change Reported-by: Baruch Siach <baruch@tkos.co.il> Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Eric Anholt <eric@anholt.net>
55 lines
925 B
Plaintext
55 lines
925 B
Plaintext
// SPDX-License-Identifier: GPL-2.0
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/dts-v1/;
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#include "bcm2836.dtsi"
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#include "bcm2835-rpi.dtsi"
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#include "bcm283x-rpi-smsc9514.dtsi"
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#include "bcm283x-rpi-usb-host.dtsi"
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/ {
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compatible = "raspberrypi,2-model-b", "brcm,bcm2836";
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model = "Raspberry Pi 2 Model B";
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memory {
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reg = <0 0x40000000>;
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};
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leds {
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act {
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gpios = <&gpio 47 GPIO_ACTIVE_HIGH>;
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};
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pwr {
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label = "PWR";
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gpios = <&gpio 35 GPIO_ACTIVE_HIGH>;
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default-state = "keep";
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linux,default-trigger = "default-on";
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};
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};
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};
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&gpio {
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pinctrl-0 = <&gpioout &alt0 &i2s_alt0>;
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/* I2S interface */
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i2s_alt0: i2s_alt0 {
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brcm,pins = <18 19 20 21>;
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brcm,function = <BCM2835_FSEL_ALT0>;
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};
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};
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&hdmi {
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hpd-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
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};
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&pwm {
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pinctrl-names = "default";
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pinctrl-0 = <&pwm0_gpio40 &pwm1_gpio45>;
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status = "okay";
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};
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&uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&uart0_gpio14>;
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status = "okay";
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};
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