From patchwork Tue Jun 29 23:49:49 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Nobuhiro Iwamatsu X-Patchwork-Id: 12350947 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 895E5C11F67 for ; Tue, 29 Jun 2021 23:52:31 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4F8A061D7C for ; Tue, 29 Jun 2021 23:52:31 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4F8A061D7C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=toshiba.co.jp Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:Message-Id:Date:Subject:Cc :To:From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References: List-Owner; bh=CsoZ3CIGsU0+bnFMuwircuzGnNBgOaIjQOC9NIszc7A=; b=U67Hmh7NH+Y6BG H0XusrQDNfnfaOZK2pliTid8WMYK1ZID+/Jx3ofq5CwXmYoBw+ivjJeeOmDpqSd15fGfaFENV/1wu mVudr95XR68WuL3i/szTHCrYC5r5RWPHZVhxuez1HLPiGDi4yMuz5rL1cp73zIl+cEdyRVxRHuqlU e4VAo1IJ1GW5wcCUYypwcy5KWVY/7UFNoJPTT8YpaJcfwji+P/zcSAKEB48rpHBI4CMMhE8fWeDdL /hMlgcFu+cpB5f6QIpZn0t14f5AVb6X8YWvgGJ6/bDmrCmTHCPsRZDMQoDWZvoHZaLYcy/vbh9SKO WgbW1uswM/YSNuP1SMOQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1lyNV2-00CFep-0x; Tue, 29 Jun 2021 23:50:40 +0000 Received: from mo-csw1116.securemx.jp ([210.130.202.158] helo=mo-csw.securemx.jp) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1lyNUn-00CFdC-9o for linux-arm-kernel@lists.infradead.org; Tue, 29 Jun 2021 23:50:28 +0000 Received: by mo-csw.securemx.jp (mx-mo-csw1116) id 15TNo5fA027394; Wed, 30 Jun 2021 08:50:05 +0900 X-Iguazu-Qid: 2wGqimLSptaMBrzYf3 X-Iguazu-QSIG: v=2; s=0; t=1625010605; q=2wGqimLSptaMBrzYf3; m=8tXOEjdEbXlzXauNDjXtyxN5zZQtkWtU8usVbLVyB3s= Received: from imx2-a.toshiba.co.jp (imx2-a.toshiba.co.jp [106.186.93.35]) by relay.securemx.jp (mx-mr1113) id 15TNo3b5034107 (version=TLSv1.2 cipher=AES128-GCM-SHA256 bits=128 verify=NOT); Wed, 30 Jun 2021 08:50:04 +0900 Received: from enc01.toshiba.co.jp (enc01.toshiba.co.jp [106.186.93.100]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by imx2-a.toshiba.co.jp (Postfix) with ESMTPS id 1F7111000FD; Wed, 30 Jun 2021 08:50:03 +0900 (JST) Received: from hop001.toshiba.co.jp ([133.199.164.63]) by enc01.toshiba.co.jp with ESMTP id 15TNo23H001568; Wed, 30 Jun 2021 08:50:02 +0900 From: Nobuhiro Iwamatsu To: Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi Cc: linux-pci@vger.kernel.org, =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Kishon Vijay Abraham I , punit1.agrawal@toshiba.co.jp, yuji2.ishikawa@toshiba.co.jp, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Nobuhiro Iwamatsu Subject: [PATCH v4 0/3] Visconti: Add Toshiba Visconti PCIe host controller driver Date: Wed, 30 Jun 2021 08:49:49 +0900 X-TSB-HOP: ON Message-Id: <20210629234952.306578-1-nobuhiro1.iwamatsu@toshiba.co.jp> X-Mailer: git-send-email 2.32.0 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210629_165025_639103_9F37F5AE X-CRM114-Status: GOOD ( 14.69 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Hi, This series is the PCIe driver for Toshiba's ARM SoC, Visconti[0]. This provides DT binding documentation, device driver, MAINTAINER files. This patch series is v4, and the updating record of each file is below: dt-bindings: pci: Add DT binding for Toshiba Visconti PCIe controller v3 -> v4: - Changed the redundant clock name. v2 -> v3: - No update. v1 -> v2: - Remove white space. - Drop num-viewport and bus-range from required. - Drop status line from example. - Drop bus-range from required. - Removed lines defined in pci-bus.yaml from required. PCI: visconti: Add Toshiba Visconti PCIe host controller driver v3 -> v4: - Change variable from pci_addr to cpu_addr in visconti_pcie_cpu_addr_fixup(). - Change the calculation method of CPU addres from subtraction to mask, and add comment. - Drop dma_set_mask_and_coherent(). - Drop set MAX_MSI_IRQS. - Drop dev_dbg for Link speed. - Use use the dev_err_probe() to handle the devm_clk_get() failed. - Changed the redundant clock name. v2 -> v3: - Update subject. - Wrap description in 75 columns. - Change config name to PCIE_VISCONTI_HOST. - Update Kconfig text. - Drop empty lines. - Adjusted to 80 columns. - Drop inline from functions for register access. - Changed function name from visconti_pcie_check_link_status to visconti_pcie_link_up. - Update to using dw_pcie_host_init(). - Reorder these in the order of use in visconti_pcie_establish_link(). - Rewrite visconti_pcie_host_init() without dw_pcie_setup_rc(). - Change function name from visconti_device_turnon() to visconti_pcie_power_on(). - Unify formats such as dev_err(). - Drop error label in visconti_add_pcie_port(). v1 -> v2: - Fix typo in commit message. - Drop "depends on OF && HAS_IOMEM" from Kconfig. - Stop using the pointer of struct dw_pcie. - Use _relaxed variant. - Drop dw_pcie_wait_for_link. - Drop dbi resource processing. - Drop MSI IRQ initialization processing. MAINTAINERS: Add entries for Toshiba Visconti PCIe controller v3 -> v4: - No update. v2 -> v3: - No update. v1 -> v2: - No update. Best regards, Nobuhiro Nobuhiro Iwamatsu (3): dt-bindings: pci: Add DT binding for Toshiba Visconti PCIe controller PCI: visconti: Add Toshiba Visconti PCIe host controller driver MAINTAINERS: Add entries for Toshiba Visconti PCIe controller .../bindings/pci/toshiba,visconti-pcie.yaml | 110 ++++++ MAINTAINERS | 2 + drivers/pci/controller/dwc/Kconfig | 9 + drivers/pci/controller/dwc/Makefile | 1 + drivers/pci/controller/dwc/pcie-visconti.c | 360 ++++++++++++++++++ 5 files changed, 482 insertions(+) create mode 100644 Documentation/devicetree/bindings/pci/toshiba,visconti-pcie.yaml create mode 100644 drivers/pci/controller/dwc/pcie-visconti.c