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From: Karl Lessard <klessard@sunrisetelecom.com>
To: linux-mips@linux-mips.org
Cc: ppopov@embeddedalley.com
Subject: Epson13806 performances on Pb1100
Date: Wed, 8 Dec 2004 11:06:14 -0500	[thread overview]
Message-ID: <MAILSERVERUhrBb0aCQ0000084e@mailserver.sunrisetelecom.com> (raw)

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 would like to know if anyone have encountered this performance problem in 
the past with this chip.

Thanks in advance,
Karl

             reply	other threads:[~2004-12-08 16:09 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-12-08 16:06 Karl Lessard [this message]
2004-12-08 16:40 ` Epson13806 performances on Pb1100 Dan Malek
2004-12-08 18:05 ` Pete Popov
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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