Re: [RFC PATCH 0/3] Add Microchip PolarFire Soc Support

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On Thu, Nov 5, 2020 at 11:14 PM Palmer Dabbelt <palmer@xxxxxxxxxxx> wrote:
>
> On Wed, 28 Oct 2020 16:27:56 PDT (-0700), Atish Patra wrote:
> > This series adds minimal support for Microchip Polar Fire Soc Icicle kit.
> > It is rebased on v5.10-rc1 and depends on clock support.
> > Only MMC and ethernet drivers are enabled via this series.
> > The idea here is to add the foundational patches so that other drivers
> > can be added to on top of this.
> >
> > This series has been tested on Qemu and Polar Fire Soc Icicle kit.
> > The following qemu series is necessary to test it on Qemu.
> >
> > The series can also be found at the following github repo.
> >
> > I noticed the latest version of mmc driver[2] hangs on the board with
> > the latest clock driver. That's why, I have tested with the old clock
> > driver available in the above github repo.
>
> OK, I guess that's why it's an RFC?
>

Yes. The latest clock/pcie driver did not work for me. I might have
missed something in DT.
The idea for RFC is so that anybody who wants to try the latest kernel
on a polarfire board
has a meaningful way to test it.

> > [1] https://lists.nongnu.org/archive/html/qemu-devel/2020-10/msg08582.html
> > [2] https://www.spinics.net/lists/devicetree/msg383626.html
>
> Looks like this one hasn't been merged yet.  IDK if something is broken with my
> mail client but I'm not seeing any github repos.  If this depends on
> not-yet-merged drivers then it's certainly RFC material, but aside from the DT
> stuff (which should be straight-forward) it seems fine to me.
>

I think it makes sense to take this series once the clock driver is
merged at least.

> Since you posted this an an RFC I'm going to assume you're going to re-spin it.
>

Yes. There are some feedbacks on DT which I will fix in v2.

> Thanks!
>
> >
> > Atish Patra (3):
> > RISC-V: Add Microchip PolarFire SoC kconfig option
> > RISC-V: Initial DTS for Microchip ICICLE board
> > RISC-V: Enable Microchip PolarFire ICICLE SoC
> >
> > arch/riscv/Kconfig.socs                       |   7 +
> > arch/riscv/boot/dts/Makefile                  |   1 +
> > arch/riscv/boot/dts/microchip/Makefile        |   2 +
> > .../microchip/microchip-icicle-kit-a000.dts   | 313 ++++++++++++++++++
> > arch/riscv/configs/defconfig                  |   4 +
> > 5 files changed, 327 insertions(+)
> > create mode 100644 arch/riscv/boot/dts/microchip/Makefile
> > create mode 100644 arch/riscv/boot/dts/microchip/microchip-icicle-kit-a000.dts
>
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-- 
Regards,
Atish



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