Commit 258f92d2 authored by Nicolas Saenz Julienne's avatar Nicolas Saenz Julienne Committed by Greg Kroah-Hartman
Browse files

ARM: dts: bcm2711: Add reset controller to xHCI node 



The chip is hardwired to the board's PCIe bus and needs to be properly
setup trough a firmware routine after a PCI fundamental reset. Pass the
reset controller phandle that takes care of triggering the
initialization to the relevant PCI device.

Reviewed-by: default avatarFlorian Fainelli <f.fainelli@gmail.com>
Signed-off-by: default avatarNicolas Saenz Julienne <nsaenzjulienne@suse.de>
Link: https://lore.kernel.org/r/20200629161845.6021-5-nsaenzjulienne@suse.de


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent b03300db

arch/arm/boot/dts/bcm2711-rpi-4-b.dts

+17 −0
Original line number Diff line number Diff line
@@ -4,6 +4,8 @@ 
#include "bcm2835-rpi.dtsi"

#include "bcm283x-rpi-usb-peripheral.dtsi"



#include <dt-bindings/reset/raspberrypi,firmware-reset.h>



/ {

	compatible = "raspberrypi,4-model-b", "brcm,bcm2711";

	model = "Raspberry Pi 4 Model B";
@@ -212,6 +214,21 @@ 
	};

};



&pcie0 {

	pci@1,0 {

		#address-cells = <3>;

		#size-cells = <2>;

		ranges;



		reg = <0 0 0 0 0>;



		usb@1,0 {

			reg = <0x10000 0 0 0 0>;

			resets = <&reset RASPBERRYPI_FIRMWARE_RESET_ID_USB>;

		};

	};

};



/* uart0 communicates with the BT module */

&uart0 {

	pinctrl-names = "default";