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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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4188ea2aeb
Until RPI 3 and Zero W the pl011 (uart0) was always on pin 14/15. So in order to take care of them and other boards in the future, we need to define UART pinmuxing on board level. This work based on Eric Anholt's patch "ARM: bcm2385: Don't force pl011 onto pins 14/15." and Fabian Vogt's patch "ARM64: dts: bcm2837: assign uart0 to BT and uart1 to pin headers". Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by: Eric Anholt <eric@anholt.net> Signed-off-by: Eric Anholt <eric@anholt.net>
48 lines
760 B
Plaintext
48 lines
760 B
Plaintext
/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 0>;
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};
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pwr {
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label = "PWR";
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gpios = <&gpio 35 0>;
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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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&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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