From patchwork Thu Nov 18 01:54:41 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Zhu X-Patchwork-Id: 12625841 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 77FB8C433F5 for ; Thu, 18 Nov 2021 02:21:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5266361ABF for ; Thu, 18 Nov 2021 02:21:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242493AbhKRCYm (ORCPT ); Wed, 17 Nov 2021 21:24:42 -0500 Received: from inva021.nxp.com ([92.121.34.21]:46196 "EHLO inva021.nxp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S241550AbhKRCYk (ORCPT ); Wed, 17 Nov 2021 21:24:40 -0500 Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 925FC202317; Thu, 18 Nov 2021 03:21:38 +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 2D3102031B0; Thu, 18 Nov 2021 03:21:38 +0100 (CET) Received: from localhost.localdomain (shlinux2.ap.freescale.net [10.192.224.44]) by aprdc01srsp001v.ap-rdc01.nxp.com (Postfix) with ESMTP id 011A1183AC96; Thu, 18 Nov 2021 10:21:35 +0800 (+08) From: Richard Zhu To: l.stach@pengutronix.de, bhelgaas@google.com, lorenzo.pieralisi@arm.com, marcel.ziswiler@toradex.com, tharvey@gateworks.com, kishon@ti.com, vkoul@kernel.org, robh@kernel.org, galak@kernel.crashing.org, shawnguo@kernel.org Cc: hongxing.zhu@nxp.com, linux-phy@lists.infradead.org, devicetree@vger.kernel.org, linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@pengutronix.de, linux-imx@nxp.com Subject: [PATCH v6 0/8] Add the imx8m pcie phy driver and imx8mm pcie support Date: Thu, 18 Nov 2021 09:54:41 +0800 Message-Id: <1637200489-11855-1-git-send-email-hongxing.zhu@nxp.com> X-Mailer: git-send-email 2.7.4 X-Virus-Scanned: ClamAV using ClamSMTP Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.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 v5 --> v6: - Add "Reviewed-by: Rob Herring " into #1 and #3 patches. - Merge Rob's review comments to the #2 patch. 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 | 92 +++++++++++++++++++++++++++++++ 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, 525 insertions(+), 8 deletions(-) [PATCH v6 1/8] dt-bindings: phy: phy-imx8-pcie: Add binding for the [PATCH v6 2/8] dt-bindings: phy: Add imx8 pcie phy driver support [PATCH v6 3/8] dt-bindings: imx6q-pcie: Add PHY phandles and name [PATCH v6 4/8] arm64: dts: imx8mm: Add the pcie phy support [PATCH v6 5/8] phy: freescale: pcie: Initialize the imx8 pcie [PATCH v6 6/8] arm64: dts: imx8mm: Add the pcie support [PATCH v6 7/8] arm64: dts: imx8mm-evk: Add the pcie support on imx8mm [PATCH v6 8/8] PCI: imx: Add the imx8mm pcie support