RE: [PATCH V2] tty/serial: add support for Xilinx PS UART

John Linn
2011-04-22T15:48:07Z

> -----Original Message-----
> From: glikely@secretlab.ca [mailto:glikely@secretlab.ca] On Behalf Of
> Grant Likely
> Sent: Friday, April 22, 2011 9:41 AM
> To: John Linn
> Cc: linux-kernel@vger.kernel.org; linux-serial@vger.kernel.org;
> alan@lxorguk.ukuu.org.uk; greg@kroah.com
> Subject: Re: [PATCH V2] tty/serial: add support for Xilinx PS UART
>
> On Wed, Apr 20, 2011 at 1:03 PM, John Linn <john.linn@xilinx.com>
> wrote:
> > The Xilinx PS Uart is used on the new ARM based SoC. This
> > UART is not compatible with others such that a seperate
> > driver is required.
> >
> > Signed-off-by: John Linn <john.linn@xilinx.com>
>
> Out of curiosity, who is the vendor of this uart IP block? Is it new
> hardware created by xilinx for zinq, or is it provided by a third
> party. If its from a third party it is within the realm of
> possibility that a driver already exists for it.
>
> g.

Hi Grant,

It is an IP block from a vendor. I would like to say, but would have
my head handed to me I'm told. I wish it wasn't that way as it's not
helping the open source process.

I did try to review all the drivers and their registers to see if
there was already one written before I sent the patches. I didn't
see one that matched as it would definitely be easier if there was.

Thanks,
John

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> Grant Likely, B.Sc., P.Eng.
> Secret Lab Technologies Ltd.