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Message-ID: <AS8PR04MB8676F26022A5EA033FA5515B8C859@AS8PR04MB8676.eurprd04.prod.outlook.com>
Date: Wed, 27 Oct 2021 01:39:13 +0000
From: Richard Zhu <hongxing.zhu@....com>
To: Marcel Ziswiler <marcel.ziswiler@...adex.com>,
"kishon@...com" <kishon@...com>,
"vkoul@...nel.org" <vkoul@...nel.org>,
"robh@...nel.org" <robh@...nel.org>,
"l.stach@...gutronix.de" <l.stach@...gutronix.de>,
"shawnguo@...nel.org" <shawnguo@...nel.org>,
"tharvey@...eworks.com" <tharvey@...eworks.com>,
"galak@...nel.crashing.org" <galak@...nel.crashing.org>
CC: "linux-phy@...ts.infradead.org" <linux-phy@...ts.infradead.org>,
"linux-arm-kernel@...ts.infradead.org"
<linux-arm-kernel@...ts.infradead.org>,
"kernel@...gutronix.de" <kernel@...gutronix.de>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
dl-linux-imx <linux-imx@....com>
Subject: RE: [PATCH v3 0/9] add the imx8m pcie phy driver and imx8mm pcie
support
> -----Original Message-----
> From: Marcel Ziswiler <marcel.ziswiler@...adex.com>
> Sent: Tuesday, October 26, 2021 11:57 PM
> To: kishon@...com; vkoul@...nel.org; robh@...nel.org;
> l.stach@...gutronix.de; shawnguo@...nel.org; tharvey@...eworks.com;
> galak@...nel.crashing.org; Richard Zhu <hongxing.zhu@....com>
> Cc: linux-phy@...ts.infradead.org; linux-arm-kernel@...ts.infradead.org;
> kernel@...gutronix.de; devicetree@...r.kernel.org;
> linux-kernel@...r.kernel.org; dl-linux-imx <linux-imx@....com>
> Subject: Re: [PATCH v3 0/9] add the imx8m pcie phy driver and imx8mm pcie
> support
>
> On Tue, 2021-10-12 at 16:41 +0800, Richard Zhu wrote:
> > 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[6-9] 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 PHY driver patch-set.
>
> Whole series:
>
> Tested-by: Marcel Ziswiler <marcel.ziswiler@...adex.com>
>
> BTW: I tested it on Verdin iMX8M Mini V1.1B without an external PCIe
> oscillator aka setting fsl,refclk-pad-mode to
> IMX8_PCIE_REFCLK_PAD_OUTPUT which worked like a charm. Thanks!
>
[Richard Zhu] Thanks for your tests.
Best Regards
Richard Zhu
> > [1]
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatc
> >
> hwork.ozlabs.org%2Fproject%2Flinux-pci%2Fpatch%2F20210510141509.929
> 120
> >
> -3-l.stach%40pengutronix.de%2F&data=04%7C01%7Chongxing.zhu%40
> nxp.c
> >
> om%7Cbacb5db20f2d4aa7a4ad08d998993356%7C686ea1d3bc2b4c6fa92cd9
> 9c5c3016
> >
> 35%7C0%7C0%7C637708606037565160%7CUnknown%7CTWFpbGZsb3d8ey
> JWIjoiMC4wLj
> >
> AwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&
> ;sdata=
> >
> Mmea0v4pP5VzSM%2F8sIStLkwvA0pY0h2lG4Vzvr8Gk%2F4%3D&reserv
> ed=0
> > [2]
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatc
> >
> hwork.kernel.org%2Fproject%2Flinux-arm-kernel%2Fcover%2F202109102026
> 40
> > .980366-1-l.stach%40pengutronix.de%2F&data=04%7C01%7Chongxin
> g.zhu%
> >
> 40nxp.com%7Cbacb5db20f2d4aa7a4ad08d998993356%7C686ea1d3bc2b4c6
> fa92cd99
> >
> c5c301635%7C0%7C0%7C637708606037565160%7CUnknown%7CTWFpbGZ
> sb3d8eyJWIjo
> >
> iMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C10
> 00&
> > ;sdata=5U%2BP0zL0OskhyB0RtH%2FsBwRn0B1Lb27ZSpjjhFD0wUo%3D&a
> mp;reserved
> > =0
> >
> > 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 | 79
> > +++++++++++++++++++++++++++++
> >
> arch/arm64/boot/dts/freescale/imx8mm-evk.dtsi |
> 53
> > ++++++++++++++++++++
> arch/arm64/boot/dts/freescale/imx8mm.dtsi
> > | 46 ++++++++++++++++-
> drivers/pci/controller/dwc/pci-imx6.c
> > | 63 ++++++++++++++++++++++-
> drivers/phy/freescale/Kconfig
> > | 9 ++++
> drivers/phy/freescale/Makefile
> > | 1 +
> drivers/phy/freescale/phy-fsl-imx8m-pcie.c |
> > 218
> >
> ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
> ++++++++++++++++++
> >
> include/dt-bindings/phy/phy-imx8-pcie.h |
> 14
> > ++++++
> > 9 files changed, 486 insertions(+), 3 deletions(-)
> >
> > [PATCH v3 1/9] dt-bindings: phy: phy-imx8-pcie: Add binding for the
> > [PATCH v3 2/9] dt-bindings: phy: add imx8 pcie phy driver support
> > [PATCH v3 3/9] arm64: dts: imx8mm: add the pcie phy support [PATCH v3
> > 4/9] arm64: dts: imx8mm-evk: add the pcie phy support [PATCH v3 5/9]
> > phy: freescale: pcie: initialize the imx8 pcie [PATCH v3 6/9]
> > dt-bindings: imx6q-pcie: Add PHY phandles and name [PATCH v3 7/9]
> > arm64: dts: imx8mm: add the pcie support [PATCH v3 8/9] arm64: dts:
> > imx8mm-evk: add the pcie support on imx8mm [PATCH v3 9/9] PCI: imx:
> > add the imx8mm pcie support
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