From 08558575c0f3d1437994590ad418d6c2cf18d96b Mon Sep 17 00:00:00 2001 Message-Id: <08558575c0f3d1437994590ad418d6c2cf18d96b.1595152741.git.stefan@agner.ch> In-Reply-To: References: From: Nicolas Saenz Julienne Date: Mon, 29 Jun 2020 18:18:40 +0200 Subject: [PATCH 3/4] 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. Signed-off-by: Nicolas Saenz Julienne [backport for RPi 4.19 kernel] Signed-off-by: Stefan Agner --- 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 ec0b3bb64de8..2c6aa1933600 100644 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts @@ -4,6 +4,8 @@ #include "bcm2711-rpi.dtsi" #include "bcm283x-rpi-csi1-2lane.dtsi" +#include + / { compatible = "raspberrypi,4-model-b", "brcm,bcm2711"; model = "Raspberry Pi 4 Model B"; @@ -87,6 +89,21 @@ }; }; +&pcie_0 { + 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 { pinctrl-names = "default"; pinctrl-0 = <&uart0_pins &bt_pins>; -- 2.27.0