From patchwork Mon Dec 16 11:01:06 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nicolas Saenz Julienne X-Patchwork-Id: 11293793 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 99DBE138C for ; Mon, 16 Dec 2019 11:01:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 80EB82072D for ; Mon, 16 Dec 2019 11:01:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727523AbfLPLB2 (ORCPT ); Mon, 16 Dec 2019 06:01:28 -0500 Received: from mx2.suse.de ([195.135.220.15]:36798 "EHLO mx1.suse.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727485AbfLPLB2 (ORCPT ); Mon, 16 Dec 2019 06:01:28 -0500 X-Virus-Scanned: by amavisd-new at test-mx.suse.de Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id 854E2AC7D; Mon, 16 Dec 2019 11:01:26 +0000 (UTC) From: Nicolas Saenz Julienne To: andrew.murray@arm.com, maz@kernel.org, linux-kernel@vger.kernel.org Cc: james.quinlan@broadcom.com, mbrugger@suse.com, f.fainelli@gmail.com, phil@raspberrypi.org, wahrenst@gmx.net, jeremy.linton@arm.com, linux-pci@vger.kernel.org, linux-rpi-kernel@lists.infradead.org, Nicolas Saenz Julienne , bcm-kernel-feedback-list@broadcom.com, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org Subject: [PATCH v5 0/6] Raspberry Pi 4 PCIe support Date: Mon, 16 Dec 2019 12:01:06 +0100 Message-Id: <20191216110113.30436-1-nsaenzjulienne@suse.de> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This series aims at providing support for Raspberry Pi 4's PCIe controller, which is also shared with the Broadcom STB family of devices. There was a previous attempt to upstream this some years ago[1] but was blocked as most STB PCIe integrations have a sparse DMA mapping[2] which is something currently not supported by the kernel. Luckily this is not the case for the Raspberry Pi 4. Note the series is based on top of linux next, as the DTS patch depends on it. [1] https://patchwork.kernel.org/cover/10605933/ [2] https://patchwork.kernel.org/patch/10605957/ --- Changes since v4: - Rebase DTS patch - Respin log2.h code into it's own series as it's still contentious yet mostly unrelated to the PCIe part Changes since v3: - Moved all the log2.h related changes at the end of the series, as I presume they will be contentious and I don't want the PCIe patches to depend on them. Ultimately I think I'll respin them on their own series but wanted to keep them in for this submission just for the sake of continuity. - Addressed small nits here and there. Changes since v2: - Redo register access in driver avoiding indirection while keeping the naming intact - Add patch editing ARM64's config - Last MSI cleanups, notably removing MSIX flag - Got rid of all _RB writes - Got rid of all of_data - Overall churn removal - Address the rest of Andrew's comments Changes since v1: - add generic rounddown/roundup_pow_two64() patch - Add MAINTAINERS patch - Fix Kconfig - Cleanup probe, use up to date APIs, exit on MSI failure - Get rid of linux,pci-domain and other unused constructs - Use edge triggered setup for MSI - Cleanup MSI implementation - Fix multiple cosmetic issues - Remove supend/resume code Jim Quinlan (3): dt-bindings: PCI: Add bindings for brcmstb's PCIe device PCI: brcmstb: Add Broadcom STB PCIe host controller driver PCI: brcmstb: Add MSI support Nicolas Saenz Julienne (3): ARM: dts: bcm2711: Enable PCIe controller MAINTAINERS: Add brcmstb PCIe controller arm64: defconfig: Enable Broadcom's STB PCIe controller .../bindings/pci/brcm,stb-pcie.yaml | 97 ++ MAINTAINERS | 4 + arch/arm/boot/dts/bcm2711.dtsi | 31 +- arch/arm64/configs/defconfig | 1 + drivers/pci/controller/Kconfig | 9 + drivers/pci/controller/Makefile | 1 + drivers/pci/controller/pcie-brcmstb.c | 1007 +++++++++++++++++ 7 files changed, 1149 insertions(+), 1 deletion(-) create mode 100644 Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml create mode 100644 drivers/pci/controller/pcie-brcmstb.c