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 > _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
