linux-kernel - RE: [PATCH v3 0/6] Add the iMX8MP PCIe support

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Message-ID: <AS8PR04MB8676979F7058D844881A924F8C759@AS8PR04MB8676.eurprd04.prod.outlook.com>
Date:   Fri, 26 Aug 2022 06:56:38 +0000
From:   Hongxing Zhu <hongxing.zhu@....com>
To:     Alexander Stein <alexander.stein@...tq-group.com>
CC:     "p.zabel@...gutronix.de" <p.zabel@...gutronix.de>,
        "l.stach@...gutronix.de" <l.stach@...gutronix.de>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "robh@...nel.org" <robh@...nel.org>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        "vkoul@...nel.org" <vkoul@...nel.org>,
        "marex@...x.de" <marex@...x.de>,
        "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kernel@...gutronix.de" <kernel@...gutronix.de>,
        dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH v3 0/6] Add the iMX8MP PCIe support

> -----Original Message-----
> From: Alexander Stein <alexander.stein@...tq-group.com>
> Sent: 2022年8月26日 14:22
> To: Hongxing Zhu <hongxing.zhu@....com>
> Cc: p.zabel@...gutronix.de; l.stach@...gutronix.de; bhelgaas@...gle.com;
> lorenzo.pieralisi@....com; robh@...nel.org; shawnguo@...nel.org;
> vkoul@...nel.org; marex@...x.de; linux-phy@...ts.infradead.org;
> devicetree@...r.kernel.org; linux-pci@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> kernel@...gutronix.de; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH v3 0/6] Add the iMX8MP PCIe support
> 
> Am Donnerstag, 18. August 2022, 09:02:27 CEST schrieb Richard Zhu:
> > Based on the 6.0-rc1 of the pci/next branch.
> > This series adds the i.MX8MP PCIe support and had been tested on
> > i.MX8MP EVK board when one PCIe NVME device is used.
> >
> > - i.MX8MP PCIe has reversed initial PERST bit value refer to
> > i.MX8MQ/i.MX8MM. Add the PHY PERST explicitly for i.MX8MP PCIe PHY.
> > - Add the i.MX8MP PCIe PHY support in the i.MX8M PCIe PHY driver.
> >   And share as much as possible codes with i.MX8MM PCIe PHY.
> > - Add the i.MX8MP PCIe support in binding document, DTS files, and PCIe
> >   driver.
> >
> > Main changes v2-->v3:
> > - Fix the schema checking error in the PHY dt-binding patch.
> > - Inspired by Lucas, the PLL configurations might not required when
> >   external OSC is used as PCIe referrence clock. It's true. Remove all
> >   the HSIO PLL bit manipulations, and PCIe works fine on i.MX8MP EVK
> board
> >   with one NVME device is used.
> > - Drop the #4 patch of v2, since it had been applied by Rob.
> >
> > Main changes v1-->v2:
> > - It's my fault forget including Vinod, re-send v2 after include Vinod
> >   and linux-phy@...ts.infradead.org.
> > - List the basements of this patch-set. The branch, codes changes and so on.
> > - Clean up some useless register and bit definitions in #3 patch.
> >
> > Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml |  16
> +++++++--
> > arch/arm64/boot/dts/freescale/imx8mp-evk.dts                 |  53
> > +++++++++++++++++++++++++++++
> arch/arm64/boot/dts/freescale/imx8mp.dtsi
> >                |  46 ++++++++++++++++++++++++-
> > drivers/pci/controller/dwc/pci-imx6.c                        |  17
> > +++++++++- drivers/phy/freescale/phy-fsl-imx8m-pcie.c
> |
> > 150
> >
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------
> ------
> > +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-----
> > ------- drivers/reset/reset-imx7.c                                   |
> 1 +
> > 6 files changed, 232 insertions(+), 51 deletions(-)
> >
> >  [PATCH v3 1/6] reset: imx7: Add the iMX8MP PCIe PHY PERST support
> > [PATCH v3 2/6] dt-binding: phy: Add iMX8MP PCIe PHY binding  [PATCH v3
> > 3/6] phy: freescale: imx8m-pcie: Add iMX8MP PCIe PHY  [PATCH v3 4/6]
> > arm64: dts: imx8mp: add the iMX8MP PCIe support  [PATCH v3 5/6] arm64:
> > dts: imx8mp-evk: Add PCIe support  [PATCH v3 6/6] PCI: imx6: Add the
> > iMX8MP PCIe support
> 
> On TQMa8MPxl + MBa8MPxL:
> Tested-by: Alexander Stein <alexander.stein@...tq-group.com>

Thanks.

Best Regards
Richard Zhu
> 
>