[ELDK] Linux porting to MPC8548E

[pradeepa]

Hello,

I am new to Linux porting. My interest is to port General Linux into 
MPC8548E custom board.
I have the following queries:

1) In latest linux sources you will find two folders in linux/arch path. 
One is powerpc and
other is ppc. How I will find whether I have to change powerpc or ppc 
folder?

3) Is there any common procedure to be followed when porting for a new 
custom board or
to a new architecture?
Can anybody please tell me the procedures I should follow.

regards,
pradeepa