application running on the top of Linux on virtex-ii pro

Hi All,

I successfully ported Linux to the powerpc on a virtex-ii pro board.
Now I'm having trouble writing sample applications that can test
devices on the board (switches, LEDs, etc). Is there a way that we
can port elf files generated by EDK to run on Linux? I'm able to
cross compile simple programs using standard C libraries, but
things don't work out when I use Xilinx libraries. I've tried cross
compiling a sample program that tests some devices on the board,
but couldn't get libraries to work correctly. Is there any work needs
to be done to the libraries before I can use them? I'm new to this sort
of
embedded environment. Any pointers? Thanks plenty.

Eric wrote:
> Hi All,
> 
> I successfully ported Linux to the powerpc on a virtex-ii pro board.
> Now I'm having trouble writing sample applications that can test
> devices on the board (switches, LEDs, etc). Is there a way that we
> can port elf files generated by EDK to run on Linux? I'm able to
> cross compile simple programs using standard C libraries, but
> things don't work out when I use Xilinx libraries. I've tried cross
> compiling a sample program that tests some devices on the board,
> but couldn't get libraries to work correctly. Is there any work needs
> to be done to the libraries before I can use them? I'm new to this sort
> of
> embedded environment. Any pointers? Thanks plenty.
> 

I can't think of what you would want to use the Xilinx libraries for. 
For simple devices, presumably they are located at some memory location 
determined by your FPGA code. So you mmap the location and then 
write/read the devices. Or am I misunderstanding something? What in the 
libraries are you trying to use?

The way we do it over here is through Linux Device Drivers...I dont
know which board are you using but if you have GPIO on your board then
Xilinx gives you the source for the device driver for GPIO's.

--
Parag