<br> I'm new to the PPC and I have a few questions. I have written a driver in the past for the X86 family, using i/o ports, but it was kernel 2.0 and i/o ports are not mmu handled.<br> I've been looking through the archive and I am slowly growing more confused.
<br><br> We are using Xilinx with PPC built in.<br><br> The PPC has a memory management unit. All of the IP we've added is mapped to physical addresses.<br><br> 1. Can I access the memory the peripherasl are mapped to directly within the driver without going through functions?
<br> if NOT, then Do I use <br> 1. ioremap(), <br> 2. request_mem_region(), <br> 3. request_region()<br> 4. something else?<br><br> 2. Are there any gotcha's with the ppc 405 that Xilinx uses that I should know about?
<br><br><br>thanks,<br>wade<br><br> <br>