From e0231cd65d8c13be1cebae1e6b5fbef61be6be0d Mon Sep 17 00:00:00 2001 Message-Id: In-Reply-To: <3651b4af52d63d4e37f40c7a6d0809b0a6c9dd73.1605346684.git.stefan@agner.ch> References: <3651b4af52d63d4e37f40c7a6d0809b0a6c9dd73.1605346684.git.stefan@agner.ch> From: Nicolas Saenz Julienne Date: Mon, 29 Jun 2020 18:18:40 +0200 Subject: [PATCH 6/8] 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: Florian Fainelli Signed-off-by: Nicolas Saenz Julienne Link: https://lore.kernel.org/r/20200629161845.6021-5-nsaenzjulienne@suse.de Signed-off-by: Greg Kroah-Hartman (cherry picked from commit 258f92d2f840b6ea62c0b33f04eb4d9270935bba) --- arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts index d77d61d41bbc..513cae21e64c 100644 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts @@ -3,6 +3,8 @@ #include "bcm2711.dtsi" #include "bcm2835-rpi.dtsi" +#include + / { compatible = "raspberrypi,4-model-b", "brcm,bcm2711"; model = "Raspberry Pi 4 Model B"; @@ -195,6 +197,21 @@ }; }; +&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"; -- 2.29.2