From patchwork Mon Apr 15 08:11:28 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yoshihiro Shimoda X-Patchwork-Id: 13629597 Received: from relmlie6.idc.renesas.com (relmlor2.renesas.com [210.160.252.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 6C1792D054; Mon, 15 Apr 2024 08:11:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=210.160.252.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713168704; cv=none; b=cynaCrzntgeHlWSKVTrgaTEl1lWB87/uhImNcjhSHAW/d4O+2PBi6Bb0Ho8dtr5LC0AriDKJy5Vy2RHX8VXkhRqic9tJQ/6WVNEQJuDQum/ipcEqQJ50ze3K9xbsFq+eATmwCzOqzH+2Oifa0xbb6A3u6XqOlwtmi+uQ/Tiv+TI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1713168704; c=relaxed/simple; bh=VqNTuQfKvyh49sn45VsMPW0/r9/45lZIiwTJ6IFKtM4=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=jt+iE7Yw1NNhN2YX5r65eWNnwjybG3pCoqPq9MAi5ORG3QC2p5PZoeQfJ62eRwZCLkxSrwyVsO/J7HNZfVwZqqHrtDccc+knukCQE3+HgvDIAjtA72NjSA2ssihenzLQilST1A+dsA7w9JWxPdVSfh3nXB9ejfUPVKR0rSvYhOw= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com; spf=pass smtp.mailfrom=renesas.com; arc=none smtp.client-ip=210.160.252.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=renesas.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=renesas.com X-IronPort-AV: E=Sophos;i="6.07,202,1708354800"; d="scan'208";a="205421235" Received: from unknown (HELO relmlir5.idc.renesas.com) ([10.200.68.151]) by relmlie6.idc.renesas.com with ESMTP; 15 Apr 2024 17:11:41 +0900 Received: from localhost.localdomain (unknown [10.166.13.99]) by relmlir5.idc.renesas.com (Postfix) with ESMTP id 3F7DB400C092; Mon, 15 Apr 2024 17:11:41 +0900 (JST) From: Yoshihiro Shimoda To: lpieralisi@kernel.org, kw@linux.com, robh@kernel.org, bhelgaas@google.com, krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, jingoohan1@gmail.com, mani@kernel.org Cc: marek.vasut+renesas@gmail.com, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Yoshihiro Shimoda Subject: [PATCH v7 0/7] PCI: rcar-gen4: Add R-Car V4H support Date: Mon, 15 Apr 2024 17:11:28 +0900 Message-Id: <20240415081135.3814373-1-yoshihiro.shimoda.uh@renesas.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-pci@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 The pcie-rcar-gen4 driver can reuse other R-Car Gen4 support like r8a779g0 (R-Car V4H) and r8a779h0 (R-Car V4M). However, some initializing settings differ between R-Car S4-8 (r8a779f0) and others. The R-Car S4-8 will be minority about the setting way. So, R-Car V4H will be majority and this is generic initialization way as "renesas,rcar-gen4-pcie{-ep}" compatible. About the firmware downloading, we can get information from the following wiki page: https://elinux.org/index.php?title=R-Car/Boards/WhiteHawk&oldid=581944#PCIe_firmware For now, I tested both R-Car S4-8 and R-Car V4H on this driver. I'll support one more other SoC (R-Car V4M) in the future. Changes from v6: https://lore.kernel.org/linux-pci/20240410004832.3726922-1-yoshihiro.shimoda.uh@renesas.com/ - Add Manivannan's Reviewed-by in patch [37]/7. - Rename a struct from "platdata" to "drvdata" in patch [4/7]. - Revise the commit descriptions in patch [456]/7. - Rename some functions in patch 6/7. - Fix the return value of an error path in patch 6/7. Changes from v5: https://lore.kernel.org/linux-pci/20240408012458.3717977-1-yoshihiro.shimoda.uh@renesas.com/ - Drop "dwc: " prefixes from the subjects in patch [0456]/7. Changes from v4: https://lore.kernel.org/linux-pci/20240403053304.3695096-1-yoshihiro.shimoda.uh@renesas.com/ - Fix compatible string for renesas,r8a779f0-pcie-ep which was described accidentally from v3... Yoshihiro Shimoda (7): dt-bindings: PCI: rcar-gen4-pci-host: Add R-Car V4H compatible dt-bindings: PCI: rcar-gen4-pci-ep: Add R-Car V4H compatible PCI: dwc: Add PCIE_PORT_{FORCE,LANE_SKEW} macros PCI: rcar-gen4: Add rcar_gen4_pcie_drvdata PCI: rcar-gen4: Add .ltssm_enable() for other SoC support PCI: rcar-gen4: Add support for r8a779g0 misc: pci_endpoint_test: Document a policy about adding pci_device_id .../bindings/pci/rcar-gen4-pci-ep.yaml | 4 +- .../bindings/pci/rcar-gen4-pci-host.yaml | 4 +- drivers/misc/pci_endpoint_test.c | 1 + drivers/pci/controller/dwc/pcie-designware.h | 6 + drivers/pci/controller/dwc/pcie-rcar-gen4.c | 272 +++++++++++++++++- 5 files changed, 270 insertions(+), 17 deletions(-)