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Subject: RE: [PATCH V2] tty/serial: add support for Xilinx PS UART
Date: Fri, 22 Apr 2011 09:47:59 -0600
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Thread-Topic: [PATCH V2] tty/serial: add support for Xilinx PS UART
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From: John Linn <John.Linn@xilinx.com>
To: Grant Likely <grant.likely@secretlab.ca>
CC: <linux-kernel@vger.kernel.org>, <linux-serial@vger.kernel.org>,
        <alan@lxorguk.ukuu.org.uk>, <greg@kroah.com>
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> -----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

<snip>

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


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