mbox series

[0/6] Add IMX8M Mini PCI support

Message ID 20210723204958.7186-1-tharvey@gateworks.com (mailing list archive)
Headers show
Series Add IMX8M Mini PCI support | expand

Message

Tim Harvey July 23, 2021, 8:49 p.m. UTC 
The IMX8M Mini PCI controller shares much in common with the existing
SoC's supported by the pci-imx6 driver.

This series adds support for it. Driver changes came from the NXP
downstream vendor kernel [1]

This series depends on Lucas Stach's i.MX8MM GPC improvements and
BLK_CTRL driver and is based on top of his v2 submission [2]

The final patch adds PCIe support to the
Tim
[1] https://source.codeaurora.org/external/imx/linux-imx/
[2]
https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=519251

Tim Harvey (6):
  dt-bindings: imx6q-pcie: add compatible for IMX8MM support
  dt-bindings: reset: imx8mq: add pcie reset
  PCI: imx6: add IMX8MM support
  reset: imx7: add resets for PCIe
  arm64: dts: imx8mm: add PCIe support
  arm64: dts: imx8mm: add gpc iomux compatible

 .../bindings/pci/fsl,imx6q-pcie.txt           |   4 +-
 arch/arm64/boot/dts/freescale/imx8mm.dtsi     |  38 ++++++-
 drivers/pci/controller/dwc/pci-imx6.c         | 103 +++++++++++++++++-
 drivers/reset/reset-imx7.c                    |   3 +
 include/dt-bindings/reset/imx8mq-reset.h      |   3 +-
 5 files changed, 147 insertions(+), 4 deletions(-)

Comments

Ahmad Fatoum July 29, 2021, 2:39 p.m. UTC | #1 
Hello Tim,

On 23.07.21 22:49, Tim Harvey wrote:
> The IMX8M Mini PCI controller shares much in common with the existing
> SoC's supported by the pci-imx6 driver.
> 
> This series adds support for it. Driver changes came from the NXP
> downstream vendor kernel [1]
> 
> This series depends on Lucas Stach's i.MX8MM GPC improvements and
> BLK_CTRL driver and is based on top of his v2 submission [2]

Are you aware of Lucas' patch series and Rob's remarks there?
https://lore.kernel.org/linux-pci/20210510141509.929120-7-l.stach@pengutronix.de/

Cheers,
Ahmad

> 
> The final patch adds PCIe support to the
> Tim
> [1] https://source.codeaurora.org/external/imx/linux-imx/
> [2]
> https://patchwork.kernel.org/project/linux-arm-kernel/list/?series=519251
> 
> Tim Harvey (6):
>   dt-bindings: imx6q-pcie: add compatible for IMX8MM support
>   dt-bindings: reset: imx8mq: add pcie reset
>   PCI: imx6: add IMX8MM support
>   reset: imx7: add resets for PCIe
>   arm64: dts: imx8mm: add PCIe support
>   arm64: dts: imx8mm: add gpc iomux compatible
> 
>  .../bindings/pci/fsl,imx6q-pcie.txt           |   4 +-
>  arch/arm64/boot/dts/freescale/imx8mm.dtsi     |  38 ++++++-
>  drivers/pci/controller/dwc/pci-imx6.c         | 103 +++++++++++++++++-
>  drivers/reset/reset-imx7.c                    |   3 +
>  include/dt-bindings/reset/imx8mq-reset.h      |   3 +-
>  5 files changed, 147 insertions(+), 4 deletions(-)
>
Richard Zhu July 30, 2021, 1:27 a.m. UTC | #2 
Hi Tim:
Just as Ahmad mentioned, Lucas had issue one patch-set to support i.MX8MM PCIe.
Some comments in the review cycle.
- One separate PHY driver should be used for i.MX8MM PCIe driver.
- Schema file should be used I think, otherwise the .txt file in the dt-binding.

I'm preparing one patch-set, but it's relied on the yaml file exchanges and power-domain changes(block control and so on).
Up to now, I only walking on the first step, trying to exchange the dt-binding files to schema yaml file.

Best Regards
Richard Zhu

> -----Original Message-----
> From: Ahmad Fatoum <a.fatoum@pengutronix.de>
> Sent: Thursday, July 29, 2021 10:40 PM
> To: tharvey@gateworks.com; Richard Zhu <hongxing.zhu@nxp.com>; Lucas
> Stach <l.stach@pengutronix.de>; Bjorn Helgaas <bhelgaas@google.com>;
> Rob Herring <robh+dt@kernel.org>; Shawn Guo <shawnguo@kernel.org>;
> Sascha Hauer <s.hauer@pengutronix.de>; Pengutronix Kernel Team
> <kernel@pengutronix.de>; Fabio Estevam <festevam@gmail.com>;
> dl-linux-imx <linux-imx@nxp.com>; linux-pci@vger.kernel.org;
> linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org;
> linux-kernel@vger.kernel.org; Krzysztof Wilczyński <kw@linux.com>; Lorenzo
> Pieralisi <lorenzo.pieralisi@arm.com>
> Subject: Re: [PATCH 0/6] Add IMX8M Mini PCI support
> 
> Hello Tim,
> 
> On 23.07.21 22:49, Tim Harvey wrote:
> > The IMX8M Mini PCI controller shares much in common with the existing
> > SoC's supported by the pci-imx6 driver.
> >
> > This series adds support for it. Driver changes came from the NXP
> > downstream vendor kernel [1]
> >
> > This series depends on Lucas Stach's i.MX8MM GPC improvements and
> > BLK_CTRL driver and is based on top of his v2 submission [2]
> 
> Are you aware of Lucas' patch series and Rob's remarks there?
> https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Flore.ke
> rnel.org%2Flinux-pci%2F20210510141509.929120-7-l.stach%40pengutronix.
> de%2F&amp;data=04%7C01%7Chongxing.zhu%40nxp.com%7C21a3e2ba936
> c443581ea08d9529ebf65%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7
> C0%7C637631664036013517%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4
> wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&a
> mp;sdata=blnp2JkmGAZ2w5JHZHJQoZJSuY1646KAT8cccaI5n%2Fw%3D&amp;
> reserved=0
> 
> Cheers,
> Ahmad
> 
> >
> > The final patch adds PCIe support to the Tim [1]
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fsour
> >
> ce.codeaurora.org%2Fexternal%2Fimx%2Flinux-imx%2F&amp;data=04%7C0
> 1%7Ch
> >
> ongxing.zhu%40nxp.com%7C21a3e2ba936c443581ea08d9529ebf65%7C686e
> a1d3bc2
> >
> b4c6fa92cd99c5c301635%7C0%7C0%7C637631664036013517%7CUnknown
> %7CTWFpbGZ
> >
> sb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6M
> n0%3
> >
> D%7C1000&amp;sdata=5IiG4fnzWkcsV2JPnQJ8gAgMhZSuZypTOixD4lV%2BTf
> g%3D&am
> > p;reserved=0
> > [2]
> > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fpatc
> >
> hwork.kernel.org%2Fproject%2Flinux-arm-kernel%2Flist%2F%3Fseries%3D51
> 9
> >
> 251&amp;data=04%7C01%7Chongxing.zhu%40nxp.com%7C21a3e2ba936c44
> 3581ea08
> >
> d9529ebf65%7C686ea1d3bc2b4c6fa92cd99c5c301635%7C0%7C0%7C63763
> 166403601
> >
> 3517%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2lu
> MzIiLCJBT
> >
> iI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&amp;sdata=M6%2FzPsxRPv%2Fv7a
> ad7uqjDQY
> > 8LhHOX%2B%2FLzxnuW1UrVgE%3D&amp;reserved=0
> >
> > Tim Harvey (6):
> >   dt-bindings: imx6q-pcie: add compatible for IMX8MM support
> >   dt-bindings: reset: imx8mq: add pcie reset
> >   PCI: imx6: add IMX8MM support
> >   reset: imx7: add resets for PCIe
> >   arm64: dts: imx8mm: add PCIe support
> >   arm64: dts: imx8mm: add gpc iomux compatible
> >
> >  .../bindings/pci/fsl,imx6q-pcie.txt           |   4 +-
> >  arch/arm64/boot/dts/freescale/imx8mm.dtsi     |  38 ++++++-
> >  drivers/pci/controller/dwc/pci-imx6.c         | 103
> +++++++++++++++++-
> >  drivers/reset/reset-imx7.c                    |   3 +
> >  include/dt-bindings/reset/imx8mq-reset.h      |   3 +-
> >  5 files changed, 147 insertions(+), 4 deletions(-)
> >
> 
> 
> --
> Pengutronix e.K.                           |
> |
> Steuerwalder Str. 21                       |
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> 35%7C0%7C0%7C637631664036013517%7CUnknown%7CTWFpbGZsb3d8ey
> JWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D
> %7C1000&amp;sdata=jynjjRJZyvooJFXwvz45OU9YB0xr5wA2y%2FkoweEtUq
> U%3D&amp;reserved=0  |
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Tim Harvey Aug. 16, 2021, 3:39 p.m. UTC | #3 
On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@nxp.com> wrote:
>
> Hi Tim:
> Just as Ahmad mentioned, Lucas had issue one patch-set to support i.MX8MM PCIe.
> Some comments in the review cycle.
> - One separate PHY driver should be used for i.MX8MM PCIe driver.
> - Schema file should be used I think, otherwise the .txt file in the dt-binding.
>
> I'm preparing one patch-set, but it's relied on the yaml file exchanges and power-domain changes(block control and so on).
> Up to now, I only walking on the first step, trying to exchange the dt-binding files to schema yaml file.
>
> Best Regards
> Richard Zhu

Richard / Ahmad,

Thanks for your response - I did not see the series from Lucas. I will
drop this and wait for him to complete his work.

Thanks,

Tim
Adam Ford Oct. 11, 2021, 12:25 p.m. UTC | #4 
On Mon, Aug 16, 2021 at 10:45 AM Tim Harvey <tharvey@gateworks.com> wrote:
>
> On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@nxp.com> wrote:
> >
> > Hi Tim:
> > Just as Ahmad mentioned, Lucas had issue one patch-set to support i.MX8MM PCIe.
> > Some comments in the review cycle.
> > - One separate PHY driver should be used for i.MX8MM PCIe driver.
> > - Schema file should be used I think, otherwise the .txt file in the dt-binding.
> >
> > I'm preparing one patch-set, but it's relied on the yaml file exchanges and power-domain changes(block control and so on).
> > Up to now, I only walking on the first step, trying to exchange the dt-binding files to schema yaml file.
> >
> > Best Regards
> > Richard Zhu
>
> Richard / Ahmad,
>
> Thanks for your response - I did not see the series from Lucas. I will
> drop this and wait for him to complete his work.
>

Tim,

It appears that the power domain changes have been applied to Shawn's
for-next branch:
https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/log/?h=for-next

Is there any chance you could rebase and resend this series?

thanks,

adam
> Thanks,
>
> Tim
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
Lucas Stach Oct. 11, 2021, 12:30 p.m. UTC | #5 
Hi Adam,

Am Montag, dem 11.10.2021 um 07:25 -0500 schrieb Adam Ford:
> On Mon, Aug 16, 2021 at 10:45 AM Tim Harvey <tharvey@gateworks.com> wrote:
> > 
> > On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@nxp.com> wrote:
> > > 
> > > Hi Tim:
> > > Just as Ahmad mentioned, Lucas had issue one patch-set to support i.MX8MM PCIe.
> > > Some comments in the review cycle.
> > > - One separate PHY driver should be used for i.MX8MM PCIe driver.
> > > - Schema file should be used I think, otherwise the .txt file in the dt-binding.
> > > 
> > > I'm preparing one patch-set, but it's relied on the yaml file exchanges and power-domain changes(block control and so on).
> > > Up to now, I only walking on the first step, trying to exchange the dt-binding files to schema yaml file.
> > > 
> > > Best Regards
> > > Richard Zhu
> > 
> > Richard / Ahmad,
> > 
> > Thanks for your response - I did not see the series from Lucas. I will
> > drop this and wait for him to complete his work.
> > 
> 
> Tim,
> 
> It appears that the power domain changes have been applied to Shawn's
> for-next branch:
> https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/log/?h=for-next
> 
> Is there any chance you could rebase and resend this series?

This wasn't about the power domain series. I also tried to get i.MX8M
PCIe upstream, but the feedback was that we need to split out the PHY
functionality, Richard is currently working on this. There is no point
in resending this series.

Regards,
Lucas
Adam Ford Oct. 11, 2021, 12:31 p.m. UTC | #6 
On Mon, Oct 11, 2021 at 7:30 AM Lucas Stach <l.stach@pengutronix.de> wrote:
>
> Hi Adam,
>
> Am Montag, dem 11.10.2021 um 07:25 -0500 schrieb Adam Ford:
> > On Mon, Aug 16, 2021 at 10:45 AM Tim Harvey <tharvey@gateworks.com> wrote:
> > >
> > > On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@nxp.com> wrote:
> > > >
> > > > Hi Tim:
> > > > Just as Ahmad mentioned, Lucas had issue one patch-set to support i.MX8MM PCIe.
> > > > Some comments in the review cycle.
> > > > - One separate PHY driver should be used for i.MX8MM PCIe driver.
> > > > - Schema file should be used I think, otherwise the .txt file in the dt-binding.
> > > >
> > > > I'm preparing one patch-set, but it's relied on the yaml file exchanges and power-domain changes(block control and so on).
> > > > Up to now, I only walking on the first step, trying to exchange the dt-binding files to schema yaml file.
> > > >
> > > > Best Regards
> > > > Richard Zhu
> > >
> > > Richard / Ahmad,
> > >
> > > Thanks for your response - I did not see the series from Lucas. I will
> > > drop this and wait for him to complete his work.
> > >
> >
> > Tim,
> >
> > It appears that the power domain changes have been applied to Shawn's
> > for-next branch:
> > https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/log/?h=for-next
> >
> > Is there any chance you could rebase and resend this series?
>
> This wasn't about the power domain series. I also tried to get i.MX8M
> PCIe upstream, but the feedback was that we need to split out the PHY
> functionality, Richard is currently working on this. There is no point
> in resending this series.

Sorry.  I missed that part.

adam
>
> Regards,
> Lucas
>
Tim Harvey Oct. 11, 2021, 3:29 p.m. UTC | #7 
On Mon, Oct 11, 2021 at 5:30 AM Lucas Stach <l.stach@pengutronix.de> wrote:
>
> Hi Adam,
>
> Am Montag, dem 11.10.2021 um 07:25 -0500 schrieb Adam Ford:
> > On Mon, Aug 16, 2021 at 10:45 AM Tim Harvey <tharvey@gateworks.com> wrote:
> > >
> > > On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@nxp.com> wrote:
> > > >
> > > > Hi Tim:
> > > > Just as Ahmad mentioned, Lucas had issue one patch-set to support i.MX8MM PCIe.
> > > > Some comments in the review cycle.
> > > > - One separate PHY driver should be used for i.MX8MM PCIe driver.
> > > > - Schema file should be used I think, otherwise the .txt file in the dt-binding.
> > > >
> > > > I'm preparing one patch-set, but it's relied on the yaml file exchanges and power-domain changes(block control and so on).
> > > > Up to now, I only walking on the first step, trying to exchange the dt-binding files to schema yaml file.
> > > >
> > > > Best Regards
> > > > Richard Zhu
> > >
> > > Richard / Ahmad,
> > >
> > > Thanks for your response - I did not see the series from Lucas. I will
> > > drop this and wait for him to complete his work.
> > >
> >
> > Tim,
> >
> > It appears that the power domain changes have been applied to Shawn's
> > for-next branch:
> > https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux.git/log/?h=for-next
> >
> > Is there any chance you could rebase and resend this series?
>
> This wasn't about the power domain series. I also tried to get i.MX8M
> PCIe upstream, but the feedback was that we need to split out the PHY
> functionality, Richard is currently working on this. There is no point
> in resending this series.
>

Lucas,

Thanks for the update.

Richard - please Cc me when you submit as I have several boards to
test IMX8MM PCI with, some with PCI bridges and some without.

Best regards,

Tim
Richard Zhu Oct. 12, 2021, 8:29 a.m. UTC | #8 
> -----Original Message-----
> From: Tim Harvey <tharvey@gateworks.com>
> Sent: Monday, October 11, 2021 11:29 PM
> To: Lucas Stach <l.stach@pengutronix.de>; Richard Zhu
> <hongxing.zhu@nxp.com>
> Cc: Adam Ford <aford173@gmail.com>; Ahmad Fatoum
> <a.fatoum@pengutronix.de>; Bjorn Helgaas <bhelgaas@google.com>; Rob
> Herring <robh+dt@kernel.org>; Shawn Guo <shawnguo@kernel.org>; Sascha
> Hauer <s.hauer@pengutronix.de>; Pengutronix Kernel Team
> <kernel@pengutronix.de>; Fabio Estevam <festevam@gmail.com>;
> dl-linux-imx <linux-imx@nxp.com>; linux-pci@vger.kernel.org;
> linux-arm-kernel@lists.infradead.org; devicetree@vger.kernel.org;
> linux-kernel@vger.kernel.org; Krzysztof Wilczyński <kw@linux.com>; Lorenzo
> Pieralisi <lorenzo.pieralisi@arm.com>
> Subject: Re: [PATCH 0/6] Add IMX8M Mini PCI support
> 
> On Mon, Oct 11, 2021 at 5:30 AM Lucas Stach <l.stach@pengutronix.de>
> wrote:
> >
> > Hi Adam,
> >
> > Am Montag, dem 11.10.2021 um 07:25 -0500 schrieb Adam Ford:
> > > On Mon, Aug 16, 2021 at 10:45 AM Tim Harvey <tharvey@gateworks.com>
> wrote:
> > > >
> > > > On Thu, Jul 29, 2021 at 6:28 PM Richard Zhu <hongxing.zhu@nxp.com>
> wrote:
> > > > >
> > > > > Hi Tim:
> > > > > Just as Ahmad mentioned, Lucas had issue one patch-set to support
> i.MX8MM PCIe.
> > > > > Some comments in the review cycle.
> > > > > - One separate PHY driver should be used for i.MX8MM PCIe driver.
> > > > > - Schema file should be used I think, otherwise the .txt file in the
> dt-binding.
> > > > >
> > > > > I'm preparing one patch-set, but it's relied on the yaml file exchanges
> and power-domain changes(block control and so on).
> > > > > Up to now, I only walking on the first step, trying to exchange the
> dt-binding files to schema yaml file.
> > > > >
> > > > > Best Regards
> > > > > Richard Zhu
> > > >
> > > > Richard / Ahmad,
> > > >
> > > > Thanks for your response - I did not see the series from Lucas. I
> > > > will drop this and wait for him to complete his work.
> > > >
> > >
> > > Tim,
> > >
> > > It appears that the power domain changes have been applied to
> > > Shawn's for-next branch:
> > > https://eur01.safelinks.protection.outlook.com/?url=https%3A%2F%2Fgi
> > >
> t.kernel.org%2Fpub%2Fscm%2Flinux%2Fkernel%2Fgit%2Fshawnguo%2Flinux.
> g
> > >
> it%2Flog%2F%3Fh%3Dfor-next&amp;data=04%7C01%7Chongxing.zhu%40nx
> p.com
> > > %7C1e298d5c31594e5a09df08d98ccbef7a%7C686ea1d3bc2b4c6fa92cd9
> 9c5c3016
> > >
> 35%7C0%7C0%7C637695629794787625%7CUnknown%7CTWFpbGZsb3d8ey
> JWIjoiMC4w
> > >
> LjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C1000&a
> mp;sd
> > >
> ata=PY2%2Bvr3s6K5O18lQ9SLY5YCqZHR7Fa%2F2RrbJ%2B041CBU%3D&amp;
> reserve
> > > d=0
> > >
> > > Is there any chance you could rebase and resend this series?
> >
> > This wasn't about the power domain series. I also tried to get i.MX8M
> > PCIe upstream, but the feedback was that we need to split out the PHY
> > functionality, Richard is currently working on this. There is no point
> > in resending this series.
> >
> 
> Lucas,
> 
> Thanks for the update.
> 
> Richard - please Cc me when you submit as I have several boards to test
> IMX8MM PCI with, some with PCI bridges and some without.
[Richard Zhu] Ok, no problem. I would CC you when I issued the v3 patch-set later.
Thanks.

Best Regards
Richard Zhu> 
> Best regards,
> 
> Tim