From mboxrd@z Thu Jan 1 00:00:00 1970 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=-13.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 F0866C43381 for ; Thu, 18 Mar 2021 06:09:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9DE8A64EE1 for ; Thu, 18 Mar 2021 06:09:06 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229703AbhCRGId (ORCPT ); Thu, 18 Mar 2021 02:08:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59374 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229654AbhCRGI2 (ORCPT ); Thu, 18 Mar 2021 02:08:28 -0400 Received: from mail-pj1-x102b.google.com (mail-pj1-x102b.google.com [IPv6:2607:f8b0:4864:20::102b]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 12650C06175F for ; Wed, 17 Mar 2021 23:08:28 -0700 (PDT) Received: by mail-pj1-x102b.google.com with SMTP id lr1-20020a17090b4b81b02900ea0a3f38c1so6382898pjb.0 for ; Wed, 17 Mar 2021 23:08:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sifive.com; s=google; h=from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=8GhH4cTVoL0LfJc3UZUszeYbDpRmL5TWL1BjWP50Uz4=; b=mIubeFddqSR3EKaZVNy5rbrJaHNUXne4naiUVYafpvQO15fTp7eXRmAHopzbbbLyED RRQdw09/QKisZ6TGKn8it60oMIU4SxpAMmsjw9CKd0BLSU6GvXJLzGeLVnJFWYLQiLQP GfutHjdWILN8FfZlo9XkQiSNhHk2L/q4vVNXboDBpjTEt2cmXtlu3p3K9TiRkiLAaoWS W4TAguGoxlSfhHs8xhayrBYiSvoJW8KIAvhCoEmQDxU557DOlUmNLkYWRknx6mWQV73Y AYMXkgj5idW282tScN8YI0cUqykrpR0mUckheXXdUo6d9SThPgmR3RGpCrkIAzBLopRe lHZw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:subject:date:message-id:mime-version :content-transfer-encoding; bh=8GhH4cTVoL0LfJc3UZUszeYbDpRmL5TWL1BjWP50Uz4=; b=jRWneHUOlTEzv88kic+uZ7R1K6eBXKkwQd4BsVgi51HC6k5We8DR7p+x6PTrDiurZN idWZNb7DSSuLOkn7CQpsjnCvt7wqcw3uZCYiTsl/t7TKkYkxz0U60qr1vTZK4i4Rvxej +1qNl1CuSebGaBZabA8UtJMy+G57c/lbE2g3rdE4iZHgoHhWVxWZ8s+t3Ia2FnB4jcR/ LZeTJCNuq5YVxBXELZd/VofyG1sHTeXteaBNV3hZ1SpAuKzPhaJvKchpE9mfEWW3IaM/ o92HXoE+LWfvcenz1OHuRp8SZSlrBzQgE5KOlDeGLW9TLAcnoyWjR1Hn1l65it3TvJo5 vl6g== X-Gm-Message-State: AOAM533eoSX/rCqpj+0jcfo2uYa+m1GR61Plotn6XXz8VcUYiaewrguj EXWxVi8nHAsDplTJ2jKD9gA6AA== X-Google-Smtp-Source: ABdhPJzeHTjGVcWo4WvxhySCrEqEcLBWg1WasA9ZJ0Y4RCv1bFsY+eYb1iAciVjVCp3+v6vNUtG1yQ== X-Received: by 2002:a17:902:9304:b029:e6:8d24:b5ce with SMTP id bc4-20020a1709029304b02900e68d24b5cemr7821316plb.27.1616047707395; Wed, 17 Mar 2021 23:08:27 -0700 (PDT) Received: from hsinchu02.internal.sifive.com (114-34-229-221.HINET-IP.hinet.net. [114.34.229.221]) by smtp.gmail.com with ESMTPSA id 68sm967353pfd.75.2021.03.17.23.08.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 17 Mar 2021 23:08:26 -0700 (PDT) From: Greentime Hu To: greentime.hu@sifive.com, paul.walmsley@sifive.com, hes@sifive.com, erik.danie@sifive.com, zong.li@sifive.com, bhelgaas@google.com, robh+dt@kernel.org, palmer@dabbelt.com, aou@eecs.berkeley.edu, mturquette@baylibre.com, sboyd@kernel.org, lorenzo.pieralisi@arm.com, p.zabel@pengutronix.de, alex.dewar90@gmail.com, khilman@baylibre.com, hayashi.kunihiko@socionext.com, vidyas@nvidia.com, jh80.chung@samsung.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, helgaas@kernel.org Subject: [PATCH v2 0/6] Add SiFive FU740 PCIe host controller driver support Date: Thu, 18 Mar 2021 14:08:07 +0800 Message-Id: X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org This patchset includes SiFive FU740 PCIe host controller driver. We also add pcie_aux clock and pcie_power_on_reset controller to prci driver for PCIe driver to use it. This is tested with e1000e: Intel(R) PRO/1000 Network Card, AMD Radeon R5 230 graphics card and SP M.2 PCIe Gen 3 SSD in SiFive Unmatched based on v5.11 Linux kernel. Changes in v2: - Refine codes based on reviewers' feedback - Remove define and use the common one - Replace __raw_writel with writel_relaxed - Split fu740_phyregreadwrite to write function - Use readl_poll_timeout in stead of while loop checking - Use dwc common codes - Use gpio descriptors and the gpiod_* api. - Replace devm_ioremap_resource with devm_platform_ioremap_resource_byname - Replace devm_reset_control_get with devm_reset_control_get_exclusive - Add more comments for delay and sleep - Remove "phy ? x : y" expressions - Refine code logic to remove possible infinite loop - Replace magic number with meaningful define - Remove fu740_pcie_pm_ops - Use builtin_platform_driver Greentime Hu (5): clk: sifive: Add pcie_aux clock in prci driver for PCIe driver clk: sifive: Use reset-simple in prci driver for PCIe driver MAINTAINERS: Add maintainers for SiFive FU740 PCIe driver dt-bindings: PCI: Add SiFive FU740 PCIe host controller riscv: dts: Add PCIe support for the SiFive FU740-C000 SoC Paul Walmsley (1): PCI: fu740: Add SiFive FU740 PCIe host controller driver .../bindings/pci/sifive,fu740-pcie.yaml | 119 +++++++ MAINTAINERS | 8 + arch/riscv/boot/dts/sifive/fu740-c000.dtsi | 34 ++ drivers/clk/sifive/Kconfig | 2 + drivers/clk/sifive/fu740-prci.c | 11 + drivers/clk/sifive/fu740-prci.h | 2 +- drivers/clk/sifive/sifive-prci.c | 54 +++ drivers/clk/sifive/sifive-prci.h | 13 + drivers/pci/controller/dwc/Kconfig | 9 + drivers/pci/controller/dwc/Makefile | 1 + drivers/pci/controller/dwc/pcie-fu740.c | 324 ++++++++++++++++++ drivers/reset/Kconfig | 3 +- include/dt-bindings/clock/sifive-fu740-prci.h | 1 + 13 files changed, 579 insertions(+), 2 deletions(-) create mode 100644 Documentation/devicetree/bindings/pci/sifive,fu740-pcie.yaml create mode 100644 drivers/pci/controller/dwc/pcie-fu740.c -- 2.30.2