[PATCH v2 0/7] Add the iMX8MP PCIe support

Hongxing Zhu hongxing.zhu at nxp.com
Sun Apr 17 21:54:01 PDT 2022 

> -----Original Message-----
> From: Lucas Stach <l.stach at pengutronix.de>
> Sent: 2022年4月15日 4:45
> To: Hongxing Zhu <hongxing.zhu at nxp.com>; p.zabel at pengutronix.de;
> bhelgaas at google.com; lorenzo.pieralisi at arm.com; robh at kernel.org;
> shawnguo at kernel.org; vkoul at kernel.org; alexander.stein at ew.tq-group.com
> Cc: linux-phy at lists.infradead.org; devicetree at vger.kernel.org;
> linux-pci at vger.kernel.org; linux-arm-kernel at lists.infradead.org;
> linux-kernel at vger.kernel.org; kernel at pengutronix.de; dl-linux-imx
> <linux-imx at nxp.com>
> Subject: Re: [PATCH v2 0/7] Add the iMX8MP PCIe support
> 
> Hi Richard,
> 
> I didn't get around to see what's wrong with the PCIe on my EVK, so I wasn't
> able to do any reworks to the series. As I will be on vacation from tomorrow
> until Apr. 25th, I'll just leave some more comments on this series for your
> consideration.
Hi Lucas:
Got that, thanks.
Have a good holiday.

Best Regards
Richard Zhu

> 
> Regards,
> Lucas
> 
> Am Montag, dem 07.03.2022 um 17:07 +0800 schrieb Richard Zhu:
> > Based on the i.MX8MP GPC and blk-ctrl patch-set[1] issued by Lucas and
> > the following commits.
> >   - one codes refine patch-set[5].
> >   - two Fixes[2],[3].
> >   - one binding commit[4].
> >   - some dts changes in Shawn's git if you want to test PCIe on i.MX8MM
> EVK.
> >     b4d36c10bf17 arm64: dts: imx8mm-evk: Add the pcie support on
> imx8mm evk board
> >     aaeba6a8e226 arm64: dts: imx8mm: Add the pcie support
> >     cfc5078432ca arm64: dts: imx8mm: Add the pcie phy support
> >
> > Sorry about that there may be some conflictions when do the codes merge.
> > I'm waiting for the ack now, and will re-base them in a proper sequence later.
> >
> > This series patches add the i.MX8MP PCIe support and tested on i.MX8MM
> > EVK and i.MX8MP EVk boards. The PCIe NVME works fine on both boards.
> >
> > - i.MX8MP PCIe PHY has two resets refer to the i.MX8MM PCIe PHY.
> >   Add one more PHY reset for i.MX8MP PCIe PHY accordingly.
> > - 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 v1-->v2:
> > - It's my fault forget including Vinod, re-send v2 after include Vinod
> >   and linux-phy at lists.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.
> >
> > [1]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fp
> >
> atchwork.kernel.org%2Fproject%2Flinux-arm-kernel%2Fcover%2F2022022820
> 1
> >
> 731.3330192-1-l.stach%40pengutronix.de%2F&data=04%7C01%7Chongx
> ing.
> >
> zhu%40nxp.com%7C3e8710b45fcd4516145908da1e57ad9b%7C686ea1d3bc2
> b4c6fa92
> >
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> >
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> > ed=0
> > [2]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fp
> >
> atchwork.ozlabs.org%2Fproject%2Flinux-pci%2Fpatch%2F1646289275-17813-
> 1
> >
> -git-send-email-hongxing.zhu%40nxp.com%2F&data=04%7C01%7Chongxi
> ng.
> >
> zhu%40nxp.com%7C3e8710b45fcd4516145908da1e57ad9b%7C686ea1d3bc2
> b4c6fa92
> >
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> >
> &sdata=PKa0bhjfgg%2B74KtKYEtMLtar%2BMkw6od3IZkkjd5U6fM%3D&a
> mp;rese
> > rved=0
> > [3]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fp
> >
> atchwork.ozlabs.org%2Fproject%2Flinux-pci%2Fpatch%2F1645672013-8949-1
> -
> >
> git-send-email-hongxing.zhu%40nxp.com%2F&data=04%7C01%7Chongxi
> ng.z
> >
> hu%40nxp.com%7C3e8710b45fcd4516145908da1e57ad9b%7C686ea1d3bc2
> b4c6fa92c
> >
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> >
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> >
> amp;sdata=wCnAZqH22CWRBc%2BNJOTdfFUEcGcb9JtziIVJsUMSXVc%3D&amp
> ;reserve
> > d=0
> > [4]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fp
> >
> atchwork.ozlabs.org%2Fproject%2Flinux-pci%2Fpatch%2F1646293805-18248-
> 1
> >
> -git-send-email-hongxing.zhu%40nxp.com%2F&data=04%7C01%7Chongxi
> ng.
> >
> zhu%40nxp.com%7C3e8710b45fcd4516145908da1e57ad9b%7C686ea1d3bc2
> b4c6fa92
> >
> cd99c5c301635%7C0%7C1%7C637855659162145906%7CUnknown%7CTWF
> pbGZsb3d8eyJ
> >
> WIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7
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> >
> &sdata=U221NuIhee%2FF9Yf%2B28pFwVlg8fi3m694qbdfPZs%2BHEw%3
> D&re
> > served=0
> > [5]https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fp
> >
> atchwork.ozlabs.org%2Fproject%2Flinux-pci%2Fcover%2F1645760667-10510-
> 1
> >
> -git-send-email-hongxing.zhu%40nxp.com%2F&data=04%7C01%7Chongxi
> ng.
> >
> zhu%40nxp.com%7C3e8710b45fcd4516145908da1e57ad9b%7C686ea1d3bc2
> b4c6fa92
> >
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> pbGZsb3d8eyJ
> >
> WIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7
> C3000
> >
> &sdata=9KHzoq6kMFAL%2FVnG6GMvY%2FdbfzaOlZf9y4Y%2FuVrEKV4%3
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> > served=0
> >
> > NOTE:
> > Based git
> > <git://git.kernel.org/pub/scm/linux/kernel/git/lpieralisi/pci.git>
> > Based branch <pci/imx6>
> >
> > Documentation/devicetree/bindings/pci/fsl,imx6q-pcie.yaml    |   1 +
> > Documentation/devicetree/bindings/phy/fsl,imx8-pcie-phy.yaml |   4 +-
> > arch/arm64/boot/dts/freescale/imx8mp-evk.dts                 |  55
> ++++++++++++++++++++++
> > arch/arm64/boot/dts/freescale/imx8mp.dtsi                    |  46
> ++++++++++++++++++-
> > drivers/pci/controller/dwc/pci-imx6.c                        |  19
> +++++++-
> > drivers/phy/freescale/phy-fsl-imx8m-pcie.c                   | 205
> +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++-----------------
> > drivers/reset/reset-imx7.c                                   |   1 +
> > 7 files changed, 286 insertions(+), 45 deletions(-)
> >
> > [PATCH v2 1/7] reset: imx7: Add the iMX8MP PCIe PHY PERST support
> > [PATCH v2 2/7] dt-binding: phy: Add iMX8MP PCIe PHY binding [PATCH v2
> > 3/7] phy: freescale: imx8m-pcie: Add iMX8MP PCIe PHY [PATCH v2 4/7]
> > dt-bindings: imx6q-pcie: Add iMX8MP PCIe compatible [PATCH v2 5/7]
> > arm64: dts: imx8mp: add the iMX8MP PCIe support [PATCH v2 6/7] arm64:
> > dts: imx8mp-evk: Add PCIe support [PATCH v2 7/7] PCI: imx6: Add the
> > iMX8MP PCIe support
>

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