From patchwork Mon Jun 22 10:38:13 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11617919 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BD3E813A0 for ; Mon, 22 Jun 2020 14:27:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B13BC2075A for ; Mon, 22 Jun 2020 14:27:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729677AbgFVO1R (ORCPT ); Mon, 22 Jun 2020 10:27:17 -0400 Received: from mx2.suse.de ([195.135.220.15]:48424 "EHLO mx2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729515AbgFVO0s (ORCPT ); Mon, 22 Jun 2020 10:26:48 -0400 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.221.27]) by mx2.suse.de (Postfix) with ESMTP id 52878C1E3; Mon, 22 Jun 2020 14:26:45 +0000 (UTC) From: Nicolas Saenz Julienne To: f.fainelli@gmail.com, gregkh@linuxfoundation.org, robh@kernel.org, wahrenst@gmx.net, p.zabel@pengutronix.de Cc: linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, linux-arm-kernel@lists.infradead.org, bcm-kernel-feedback-list@broadcom.com, tim.gover@raspberrypi.org, linux-pci@vger.kernel.org, helgaas@kernel.org, andy.shevchenko@gmail.com, mathias.nyman@linux.intel.com, lorenzo.pieralisi@arm.com, Nicolas Saenz Julienne Subject: [PATCH v4 4/9] ARM: dts: bcm2711: Add reset controller to xHCI node Date: Mon, 22 Jun 2020 12:38:13 +0200 Message-Id: <20200622103817.476-5-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20200622103817.476-1-nsaenzjulienne@suse.de> References: <20200622103817.476-1-nsaenzjulienne@suse.de> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org 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 --- Changes since v3: - Correctly define PCIe topology: [0000:00]---00.0-[01]----00.0 VIA Technologies, Inc. VL805 USB 3.0 Host Controller Earlier versions were not taking into account the bridge between the PCIe controller and xHCI controller. It worked, but out of luck... Changes since v2: - Use dt-bindings to access IDs Changes since v1: - Update to match new binding 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 0cef95058fb0..5b54d2185893 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 "bcm2835-rpi.dtsi" #include "bcm283x-rpi-usb-peripheral.dtsi" +#include + / { compatible = "raspberrypi,4-model-b", "brcm,bcm2711"; model = "Raspberry Pi 4 Model B"; @@ -207,6 +209,21 @@ phy1: ethernet-phy@1 { }; }; +&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";