From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from moutng.kundenserver.de (moutng.kundenserver.de [212.227.126.188]) by ozlabs.org (Postfix) with ESMTP id 5A07EDDDF0 for ; Thu, 18 Sep 2008 17:30:03 +1000 (EST) From: Matthias Fuchs To: nathael.pajani@ed3l.fr Subject: Re: SM722 (Lynx3DM+) framebuffer driver Date: Thu, 18 Sep 2008 09:28:18 +0200 References: <200609271226.06115.matthias.fuchs@esd-electronics.com> <48C7B602.9040404@ed3l.fr> In-Reply-To: <48C7B602.9040404@ed3l.fr> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Message-Id: <200809180928.18689.matthias.fuchs@esd-electronics.com> Cc: linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Hi Nathael, your driver seems to be the most complete framebufferdriver for this chip I heard about :-) Our driver is currently based on some register dumps by SMI. The chip is completely setup by U-Boot. Because of it's missing generic'ness I did not dare to post it as a patch to the U-Boot list :-) Finally we are using a stupid framebuffer driver that does absolutely no 722 setup. It just represents the framebuffer driver interface. I will give your driver a try. On Wednesday 10 September 2008 13:56, Nathael Pajani wrote: > Hi ! > I know your mail is quite old, but this might still prove useful.... > and did you find a solution ? > Do you finally have a driver ? I'm interested in whatever information you have, > even the links to 2.4 kernel code, or code for SM712 chips. Anything at all in > fact, so I may try to improve my driver. > > I have this device (Silicon Motion SM722 Lynx3DM+) on a powerPC board from ACTIS > Computers. > > You'll find attached a patch with the SMI driver I made. > It's not as good as it should be, be I have a usable display, being able to use > xorg, and it's as much as I managed without a vgabios (which they provide for > x86 arch only). > Note also that uboot on the board does some chip init, so this driver alone may > not be useful if you don't already have something. I assume that you enable access to the memory mapped register in U-Boot, right? > > Note also that for my brain's sake I removed parts handling LynxEM chips from > the original code (which was mainly for mips VR5701-SG2 with LynxEM+). > > Have fun, and thank you if you can send in some useful stuff. > ++++ > Matthias