Hello everybody, I have 860T FADS board, and I am trying to access the (board specific) registers BCSRs.
I have no problem accessing them in PPCBOOT, since they are accessed through CS1, at address FF01xxxx, but I can't access them in linux for the moment. My first attempt was by using the /dev/mem device, but it doesn't seem to work, the result read are not correct. so I have to question 1) why doesn't it work, I probably don't understand how /dev/mem works : does it map only memory and not the address space ? do I have to register the address range or the BCSR in the kernel ? 2) what is the proper way of doing this ? writing a driver ? or using /dev/mem properly ? thx for your help... Jeremy ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
