From: Pete Popov <ppopov@embeddedalley.com>
To: Karl Lessard <klessard@sunrisetelecom.com>
Cc: linux-mips@linux-mips.org
Subject: Re: Epson13806 performances on Pb1100
Date: Wed, 08 Dec 2004 10:05:30 -0800 [thread overview]
Message-ID: <41B7426A.2040502@embeddedalley.com> (raw)
In-Reply-To: <MAILSERVERUhrBb0aCQ0000084e@mailserver.sunrisetelecom.com>
Karl Lessard wrote:
> Hi all,
>
> I'm currently developping on a Pb1100 alchemy board, and I use the Epson
> 13806 graphic controller connected to the Au1100 static bus. I've written a
> driver for it for kernel 2.6.x, and update the Au1100 code so I can access
> 0xE 0000 0000 address range.
>
> Everything works fine, but for the speed. It seems that accessing the chip is
> too slow for having high-graphic performances. The LCLK is set at 49500KHz,
> as the memory clock inside the chip. I know it's a bit overclocked, but a
> lower LCLK freezes my system.
I've used the chip with the 2.4 kernel/driver to run X and some
apps. I'm not sure what you mean by high performance -- does X run
at reasonable speeds?
Pete
> I would like to know if anyone have encountered this performance problem in
> the past with this chip.
>
> Thanks in advance,
> Karl
>
>
next prev parent reply other threads:[~2004-12-08 18:06 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-08 16:06 Epson13806 performances on Pb1100 Karl Lessard
2004-12-08 16:40 ` Dan Malek
2004-12-08 18:05 ` Pete Popov [this message]
2004-12-08 19:38 ` Karl Lessard
2004-12-08 20:37 ` Michael Kelly
2004-12-08 21:17 ` Karl Lessard
2004-12-08 22:35 ` Eric DeVolder
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