basic video functionality on MPC8560

["Mel Davey" <meldavey@xxxxxxxxx>]

Hi, old programmer here, but new to linux and hardware side.  I have a custom developed MPC8560 freescale processor board w/ 3 PCI slots.  I would like to add one pci video board and get something to display on my LCD at 800x600, 16bbp res.

 

I have 3 video board choices right now:  NVidia GeForceMX 4000, ATI 128RagePro, ATI Radeon 9250, all PCI.

Keep in mind I need to cross-compile anything I add to this board, so I can't use any newer ATI or NVidia proprietary drivers.  I'm also new to cross-compiling in general, so its taking a bit of time just to get X compiled to the PPC.

 

When booting the kernel, I first notice no /dev/fb or /dev/fb0, etc. 
These cmds do not produce a fb:

modprobe nvidiafb

modprobe radeonfb

This does:

modprobe vga16fb

but I can' do a:

fbset -g 800 600 800 600 16

on i, it hangs.  The vga16fb loaded, but seg faulted as well, although it did make a /dev/fb0 that I can do fbset -i on?

 

So I move on to get the X server running anyway, as it shou work with no fb.  No luck?  I've tried to just start it up with:

X -allowMouseOpenFail

notice I don't yet have a mouse.  I want to eventually ue the touch screen as my only pointer, but that will happen later I assume, just want to see stuff on the LCD first.

 

Stuff like:

lspci -vvv seem to work fine, and report back seemingly good info.

 

Thoughts?

 

Thanks.

 

- Mel

--
Mel Davey
CAC
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Guilford, CT 06437
860-961-8989 (mobile)