[PATCH u-boot-marvell 4/5] serial: a37xx: Switch to XTAL clock when booting Linux kernel

[Pali Rohár]

On Thursday 27 May 2021 10:17:33 Pali Rohár wrote:
> On Thursday 27 May 2021 08:17:41 Stefan Roese wrote:
> > On 25.05.21 19:42, Marek Behún wrote:
> > > From: Pali Rohár <pali at kernel.org>
> > > 
> > > Unfortunately the UART driver in current Linux for Armada 3700 expects
> > > UART's parent clock to be XTAL and calculats baudrate divisor according
> > > to XTAL clock. Therefore we must switch back to XTAL clock before
> > > booting kernel.
> > 
> > Do you plan to enhance the Linux driver as well to support TBG as
> > clock in input at some time?
> 
> Yes! I have already written patches but they need cleanup and more tests.

Patches for Linux kernel are here:
https://lore.kernel.org/linux-serial/20210624224909.6350-1-pali@kernel.org/