[ELDK] new developer for kilauea PPC405EX, EBC device?

[Price, John @ SDS]

Hi I am a new to this list and have just started development on a
project that will use the PPC405EX device.  Looking at the kilauea405EX
user manual I see the EBC is mapped at 0x8000 0000. 

 

Does the kernel "Linux Kilauea 2.6.23-gc96cdd1f #1" dated "Fri Jan 11
17:39:36 CET 2008 ppc unknown" provide a device file descriptor for the
EBC that I may use with mmap() ?  

 

Initially I'd like to be able to read the EBC address space from core.  

 

What has to change if that EBC space needs to be relocated to a
different region or enlarged?

 

Then I want to initiate a DMA transfer from my user program such that
the DMA controller reads some number of bytes from EBC space and writes
them to a buffer in my user program.  Getting the right addresses into
the DMA controller via DCR will be the next step after mapping the EBC
space.  

 

Is it possible to do this through a user program or is this
functionality only possible through a device driver?

 

thanks

---
John Price  <john.p.price at l-3com.com> 781-970-1743
L-3 Communications
Security & Detection Systems Division, 
10E Commerce Way, Woburn, MA 01801