From patchwork Tue Nov 2 02:32:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhu X-Patchwork-Id: 12597799 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ACBCCC4332F for ; Tue, 2 Nov 2021 02:58:47 +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 73EC760F0F for ; Tue, 2 Nov 2021 02:58:47 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 73EC760F0F Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=nxp.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=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:MIME-Version:List-Subscribe:List-Help: List-Post:List-Archive:List-Unsubscribe:List-Id: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=8ZeEAZmaAFp2TuFnvH+HWMFL/faidyqaLyctNnHru8c=; b=YNHf8rI8LPcdNw VGlGsF4F20kPfZTTQSAxR9B7d5XqITUOeaBgDpiUFmImIuESKy/EZqj90xYYtGwng5qJeUc3GRpBV 1u2v0yQyp7wDlTBm6MxJi9ZGLr8QZFdT4iUInY6ipgnGZr1kF1YhIFCmT7ygQiZKjAA5/HKCG1RBl xDMmSLJxkM4xNXjEf92LsjIm/SbCcLdzcTrZymiKekPK39+vcQ139SYFrYtva7u0eSNXp/lQuRAMJ VvylnzzMgrllDn7phPCQtDSgViFZbd35EfhLRWCRTO8n49lEDczVRW109b2fB1UDf9Y/I83TE2FAd V2EMbDEjbGztR7mj8opA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mhk0c-000Lze-UQ; Tue, 02 Nov 2021 02:58:46 +0000 Received: from inva021.nxp.com ([92.121.34.21]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mhk0P-000Lt9-Me; Tue, 02 Nov 2021 02:58:35 +0000 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id E12812001BA; Tue, 2 Nov 2021 03:58:31 +0100 (CET) Received: from aprdc01srsp001v.ap-rdc01.nxp.com (aprdc01srsp001v.ap-rdc01.nxp.com [165.114.16.16]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 7E3A2200168; Tue, 2 Nov 2021 03:58:31 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id C4D8B183AD05; Tue, 2 Nov 2021 10:58:29 +0800 (+08) From: Richard Zhu To: l.stach@pengutronix.de, marcel.ziswiler@toradex.com, tharvey@gateworks.com, kishon@ti.com, vkoul@kernel.org, robh@kernel.org, galak@kernel.crashing.org, shawnguo@kernel.org Cc: linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH v5 0/8] Add the imx8m pcie phy driver and imx8mm pcie support Date: Tue, 2 Nov 2021 10:32:27 +0800 Message-Id: <1635820355-27009-1-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20211101_195834_059146_D6BA4985 X-CRM114-Status: GOOD ( 16.71 ) X-BeenThere: linux-phy@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Linux Phy Mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Sender: "linux-phy" Errors-To: linux-phy-bounces+linux-phy=archiver.kernel.org@lists.infradead.org Refer to the discussion [1] when try to enable i.MX8MM PCIe support, one standalone PCIe PHY driver should be seperated from i.MX PCIe driver when enable i.MX8MM PCIe support. This patch-set adds the standalone PCIe PHY driver suport[1-5], and i.MX8MM PCIe support[6-8] to have whole view to review this patch-set. The PCIe works on i.MX8MM EVK board based the the blkctrl power driver [2] and this patch-set. And tested by Tim and Marcel on the different reference clock modes boards. [1] https://patchwork.ozlabs.org/project/linux-pci/patch/20210510141509.929120-3-l.stach@pengutronix.de/ [2] https://patchwork.kernel.org/project/linux-arm-kernel/cover/20210910202640.980366-1-l.stach@pengutronix.de/ Main changes v4 --> v5: - Set the AUX_EN always 1b'1, thus it can fix the regression introduced in v4 series on Marcel's board. - Use the lower-case letter in the devicetreee refer to Marcel's comments. - Since the default value of the deemphasis parameters are zero, only set the deemphasis registers when the input paramters are none zero. Main changes v3 --> v4: - Update the yaml to fix syntax error, add maxitems and drop description of phy - Correct the clock name in PHY DT node. - Squash the EVK board relalted dts changes into one patch, and drop the useless dummy clock and gpio suffix in DT nodes. - Add board specific de-emphasis parameters as DT properties. Thus each board can specify its actual de-emphasis values. - Update the commit log of PHY driver. - Remove the useless codes from PCIe driver, since they are moved to PHY driver - After the discussion and verification of the CLKREQ# configurations with Tim, agree to add an optional boolean property "fsl,clkreq-unsupported", indicates the CLKREQ# signal is hooked or not in HW designs. - Add "Tested-by: Marcel Ziswiler " tag, since Marcel help to test the v3 patch-set. Main changes v2 --> v3: - Regarding Lucas' comments. - to have a whole view to review the patches, send out the i.MX8MM PCIe support too. - move the PHY related bits manipulations of the GPR/SRC to standalone PHY driver. - split the dts changes to SOC and board DT, and use the enum instead of raw value. - update the license of the dt-binding header file. Changes v1 --> v2: - Update the license of the dt-binding header file to make the license compatible with dts files. - Fix the dt_binding_check errors. Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml | 6 +++ Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml | 95 ++++++++++++++++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi | 55 +++++++++++++++++++ arch/arm64/boot/dts/freescale/imx8mm.dtsi | 46 +++++++++++++++- drivers/pci/controller/dwc/pci-imx6.c | 73 ++++++++++++++++++++++--- drivers/phy/freescale/Kconfig | 9 ++++ drivers/phy/freescale/Makefile | 1 + drivers/phy/freescale/phy-fsl-imx8m-pcie.c | 237 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ include/dt-bindings/phy/phy-imx8-pcie.h | 14 +++++ 9 files changed, 528 insertions(+), 8 deletions(-) [PATCH v5 1/8] dt-bindings: phy: phy-imx8-pcie: Add binding for the [PATCH v5 2/8] dt-bindings: phy: Add imx8 pcie phy driver support [PATCH v5 3/8] dt-bindings: imx6q-pcie: Add PHY phandles and name [PATCH v5 4/8] arm64: dts: imx8mm: Add the pcie phy support [PATCH v5 5/8] phy: freescale: pcie: Initialize the imx8 pcie [PATCH v5 6/8] arm64: dts: imx8mm: Add the pcie support [PATCH v5 7/8] arm64: dts: imx8mm-evk: Add the pcie support on imx8mm [PATCH v5 8/8] PCI: imx: Add the imx8mm pcie support