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Re: [PATCH 0/4] pch_uart: Cleanups, board quirks, and user uartclk parameter

On Wed, Feb 22, 2012 at 12:59:03AM -0800, Darren Hart wrote:
> On 02/22/2012 12:16 AM, Tomoya MORINAGA wrote:
> > 2012年2月22日15:39 Darren Hart <dvhart@xxxxxxxxxxxxxxx>:
> >> We can add a patch to this series that sets the
> >> default to 192MHz, drops the CM-iTC quirk, and does nothing in pch_phub
> >> probe for the FRI2.
> > 
> > If you set  the clock of pch_uart as 64MHz,
> > do you need to add quirk for FRI2 to pch_phub so as to provide 64MHz clock?
> I admit the value of pch_phub eludes me a bit. In my case, the firmware
> sets up the CLKCFG register, so there is no need to set it manually
> after boot. Instead, I'm making sure the pch_uart driver defaults to
> what the firmware sets up.

I think long term wise, we should suggest BIOS vendor to set the UART clk
to 192MHz in chipset's release notes, since 192MHz works on Darren's,
Tomoya's and my boards.


> -- 
> Darren Hart
> Intel Open Source Technology Center
> Yocto Project - Linux Kernel
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