Re: [PATCH] riscv: dts: sophgo: add initial Milk-V Duo S board device tree

From: Inochi Amaoto
Date: Tue Apr 09 2024 - 08:30:18 EST


On Tue, Apr 09, 2024 at 08:27:59PM +0800, Inochi Amaoto wrote:
> On Tue, Apr 09, 2024 at 01:13:32PM +0100, Conor Dooley wrote:
> > On Tue, Apr 09, 2024 at 03:17:35PM +0800, Inochi Amaoto wrote:
> > > On Tue, Apr 09, 2024 at 08:45:04AM +0200, michael.opdenacker@xxxxxxxxxxx wrote:
> > > > From: Michael Opdenacker <michael.opdenacker@xxxxxxxxxxx>
> > > >
> > > > This adds initial support for the Milk-V Duo S board
> > > > (https://milkv.io/duo-s), enabling the serial port and
> > > > read-only SD card support, allowing to boot Linux to the
> > > > command line.
> > > >
> > >
> > > Hi Michael,
> > >
> > > I think your patch losts the board binding and have wrong compatiable.
> > > Also, the SD can have rw support with proper property. See link [1]
> > > (need 'disable-wp').
> >
> > [1] doesn't go anywhere useful.
> >
>
> This is my fault, I copied the wrong url. The right patch is
> https://lore.kernel.org/r/20240217144826.3944-1-jszhang@xxxxxxxxxx.
>

FYI, Michael. This is the right url for sdhci dts. The previous
is wrong.

> > > I suggest you resubmitting this patch after applying clk patchs.
> > > This could reduce some unnecessary change. For now, you can just
> > > use the dts for huashan-pi (with changed memory size).
> >
> > Why would using patched huashan-pi dts be more suitable than carrying
> > a local patch for duo-s devicetree? What am I missing?
> >
> > Cheers,
> > Conor.
> >
> > >
> > > [1]: https://lore.kernel.org/linux-riscv/IA1PR20MB4953B158F6F575840F3D4267BB7D2@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
>
> I think you miss nothing. Using huashan-pi dts as a temporary
> solution is just because they are both CV181X series. Since
> only a few peripherals are supported, it is also OK to use duo
> dts with local change. They're not significantly different.
> This is also the reason I did not prepare any patch for the
> new board. (such as lichee RV NANO, duo 256).