[PATCH 01/14] serial: atmel-usart: allow selecting from ARCH_MICROCHIPSW

Robert Marko robert.marko at sartura.hr
Mon Apr 27 11:56:02 CEST 2026


On Sat, Apr 25, 2026 at 3:35 PM Eugen Hristev <ehristev at kernel.org> wrote:
>
> On 3/26/26 13:26, Robert Marko wrote:
> > USART driver is reused by a lot of Microchip platforms, in this case we
> > need it for LAN969x so allow selecting it when ARCH_MICROCHIPSW is used.
>
> Hello Robert,
>
> I apologize for not replying to this sooner, but my old email address
> was bouncing.
>
> I did not find any information(or cover letter), about this series,
> because it looks like you are sending this on top of something else,
> which is not merged yet.
> I am not familiar with ARCH_MICROCHIPSW which is not in Uboot.
> Can you please clarify ?

Hi Eugen,
ARCH_MICROCHIPSW is not yet in U-Boot, but its being added via the
same series patch series.

Its the new arch that will hold LAN969x for start, but other Microchip
switch SoC-s in future as well.

Regards,
Robert
>
> Sorry again,
> Eugen
>
> >
> > Signed-off-by: Robert Marko <robert.marko at sartura.hr>
> > ---
> >  drivers/serial/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
> > index b84cb9ec781..3848c3ca20e 100644
> > --- a/drivers/serial/Kconfig
> > +++ b/drivers/serial/Kconfig
> > @@ -665,7 +665,7 @@ config ARM_DCC
> >
> >  config ATMEL_USART
> >       bool "Atmel USART support"
> > -     depends on ARCH_AT91
> > +     depends on ARCH_AT91 || ARCH_MICROCHIPSW
> >       help
> >         Select this to enable USART support for Atmel SoCs. It can be
> >         configured in the device tree, and input clock frequency can
>


-- 
Robert Marko
Staff Embedded Linux Engineer
Sartura d.d.
Lendavska ulica 16a
10000 Zagreb, Croatia
Email: robert.marko at sartura.hr
Web: www.sartura.hr


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