So many thanks! Chris. This info will do great help for me. Checking it. On Thu, 2008-06-26 at 23:13 -0500, Ring, Chris wrote: > There's a silicon errata that may be applicable - not sure. > > Advisory 1.3.1 here: > http://focus.ti.com/lit/er/sprz241k/sprz241k.pdf > > ... states that the OSD window addressing is limited to 128 MB. > > Chris > > > -----Original Message----- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED] > ] On Behalf Of steven.zhang > > Sent: Thursday, June 26, 2008 8:31 PM > > To: Tivy, Robert > > Cc: torran; davinci; [EMAIL PROTECTED] > > Subject: RE: davincifb driver works only at reserver memory > > 120M-126M usingioremap > > > > Thanks Rob. But I am afraid not. You know, when FB driver is > > loading(on > > kernel booting), CMEM is not insmod(after kernel boot up) at all. > > > > Regards, > > Steven > > > > On Thu, 2008-06-26 at 16:41 -0500, Tivy, Robert wrote: > > > Are you using CMEM? Typically, CMEM is configured (during 'insmod', > > > usually from the loadmodules.sh script) to use 120MB -> 128 MB. > > > > > > Regards, > > > > > > - Rob > > > > > > > -----Original Message----- > > > > From: [EMAIL PROTECTED] > > > > [mailto:[EMAIL PROTECTED] > > > > ] On Behalf Of steven.zhang > > > > Sent: Thursday, June 26, 2008 1:33 AM > > > > To: davinci > > > > Cc: torran; [EMAIL PROTECTED] > > > > Subject: davincifb driver works only at reserver memory > > > > 120M-126M usingioremap > > > > > > > > Hi, all. > > > > I change davincifb driver DMA buffer allocation from > > > > dma_alloc_coherent() into using ioremap() to reserver FB memory. > > > > If the reserve memory resides between 120M-126M, it works > > > > fine,while larger than 126M, its output is lines instead > > of linux tux. > > > > > > > > phys memory of my board is 256M, and pass mem=120M into bootargs. > > > > any thoughts? > > > > > > > > Regards, > > > > steven > > > > > > > > _______________________________________________ > > > > Davinci-linux-open-source mailing list > > > > [email protected] > > > > > > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > > > > > > > > _______________________________________________ > > Davinci-linux-open-source mailing list > > [email protected] > > http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source > >
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