From patchwork Tue Jun 4 13:14:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kishon Vijay Abraham I X-Patchwork-Id: 10974985 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 780B092A for ; Tue, 4 Jun 2019 13:17:21 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 641F620500 for ; Tue, 4 Jun 2019 13:17:21 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 577B526E54; Tue, 4 Jun 2019 13:17:21 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=unavailable version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id C961520500 for ; 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Tue, 4 Jun 2019 08:16:45 -0500 Received: from lelv0327.itg.ti.com (10.180.67.183) by DFLE113.ent.ti.com (10.64.6.34) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256_P256) id 15.1.1713.5 via Frontend Transport; Tue, 4 Jun 2019 08:16:45 -0500 Received: from a0393678ub.india.ti.com (ileax41-snat.itg.ti.com [10.172.224.153]) by lelv0327.itg.ti.com (8.15.2/8.15.2) with ESMTP id x54DGdGG098972; Tue, 4 Jun 2019 08:16:40 -0500 From: Kishon Vijay Abraham I To: Tom Joseph , Bjorn Helgaas , Rob Herring , Mark Rutland , Lorenzo Pieralisi , Arnd Bergmann , Gustavo Pimentel Subject: [RFC PATCH 00/30] Add PCIe support to TI's J721E SoC Date: Tue, 4 Jun 2019 18:44:46 +0530 Message-ID: <20190604131516.13596-1-kishon@ti.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20190604_061703_663437_9224378F X-CRM114-Status: GOOD ( 16.77 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, Jingoo Han , linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, Kishon Vijay Abraham I , linux-rockchip@lists.infradead.org, Greg Kroah-Hartman , linux-omap@vger.kernel.org, Frank Rowand , linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP TI's J721E SoC uses Cadence PCIe core to implement both RC mode and EP mode. The high level features are: *) Supports Legacy, MSI and MSI-X interrupt *) Supports upto GEN4 speed mode *) Supports SR-IOV *) Supports multipe physical function *) Ability to route all transactions via SMMU This patch series *) Modify Cadence driver to be used for TI's J721E SoC *) Add a driver for J721E PCIe wrapper *) Add SR-IOV support to PCI endpoint core and enable it in Cadence driver *) Other cleanups in endpoint core and pci_endpoint_test.c I can split the series into sepearate series if that is preferred. Initial support for J721E SoC is sent here [1]. [1] -> https://lkml.org/lkml/2019/5/22/593 Kishon Vijay Abraham I (30): dt-bindings: PCI: cadence: Add DT binding to use PCIe with IOMMU dt-bindings: PCI: cadence: Add binding to reset PERST# dt-bindings: PCI: cadence: Update host DT bindings with TI specific compatible dt-bindings: PCI: cadence: Update EP DT bindings with TI specific compatible linux/kernel.h: Add PTR_ALIGN_DOWN macro PCI: cadence: Add support to use custom read and write accessors PCI: cadence: Add read and write accessors to perform only 32-bit accesses PCI: cadence: Add support to use PCIe in J721E SoC PCI: cadence: Add platform_data to start link and check link status PCI: cadence: Use *_start_link() and *_wait_for_link() to establish link PCI: cadence: Add support to drive PERST# line using GPIO PCI: cadence: Make "mem" an optional memory resource PCI: cadence: Use local management register to configure Vendor ID PCI: endpoint: Use notification chain mechanism to notify EPC events to EPF PCI: endpoint: Replace spinlock with mutex PCI: endpoint: Assign function number of each PF in EPC core PCI: endpoint: Protect concurrent access to pci_epf_ops with mutex PCI: endpoint: Add support to add virtual function in endpoint core PCI: endpoint: Add support to link a physical function to a virtual function PCI: endpoint: Add virtual function number in pci_epc ops PCI: cadence: Add support to configure virtual functions PCI: cadence: Configure pci_epc_features to align BAR addresses to 256 Bytes of/platform: Export of_platform_device_create_pdata() dt-bindings: PCI: J721E: Add DT bindings for PCIe controller in J721E PCI: j721e: Add TI J721E PCIe driver MAINTAINERS: Add MAINTAINER entry for PCIe on TI's J721E SoC misc: pci_endpoint_test: Add J721E in pci_device_id table misc: pci_endpoint_test: Avoid using module parameter to determine irqtype misc: pci_endpoint_test: Populate sriov_configure ops to configure SRIOV device misc: pci_endpoint_test: Enable legacy interrupt .../bindings/pci/cdns,cdns-pcie-ep.txt | 1 + .../bindings/pci/cdns,cdns-pcie-host.txt | 3 + .../devicetree/bindings/pci/ti,j721e-pci.txt | 63 +++ MAINTAINERS | 3 +- drivers/misc/pci_endpoint_test.c | 22 +- drivers/of/platform.c | 9 +- drivers/pci/controller/Kconfig | 9 + drivers/pci/controller/Makefile | 1 + .../pci/controller/dwc/pcie-designware-ep.c | 35 +- drivers/pci/controller/pci-j721e.c | 431 ++++++++++++++++++ drivers/pci/controller/pcie-cadence-ep.c | 181 ++++++-- drivers/pci/controller/pcie-cadence-host.c | 119 ++++- drivers/pci/controller/pcie-cadence.c | 87 +++- drivers/pci/controller/pcie-cadence.h | 125 ++++- drivers/pci/controller/pcie-rockchip-ep.c | 18 +- drivers/pci/endpoint/functions/pci-epf-test.c | 77 ++-- drivers/pci/endpoint/pci-ep-cfs.c | 51 ++- drivers/pci/endpoint/pci-epc-core.c | 179 ++++---- drivers/pci/endpoint/pci-epf-core.c | 125 ++++- include/dt-bindings/pci/pci.h | 12 + include/linux/kernel.h | 1 + include/linux/of_platform.h | 3 + include/linux/pci-epc.h | 64 ++- include/linux/pci-epf.h | 27 +- 24 files changed, 1365 insertions(+), 281 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/ti,j721e-pci.txt create mode 100644 drivers/pci/controller/pci-j721e.c create mode 100644 include/dt-bindings/pci/pci.h