change to config tool

[ron minnich]

The config tool has been changed to allow 'default' statements in the 
mainboard file.

Now, you can have 
default ROM_SIZE 512*1024

in the mainboard file, and over-ride that with (e.g.)
option ROM_SIZE=1024*1024

in the target file.

I've tested this and it works fine; it's now committed.

thanks

ron

config tool + tree enumeration

[Stefan Reinauer]

Hi,

I have several non coherent ht devices in a chain, i.e. :

CPU0 -- CPU1    or    CPU2 -- CPU3
   |                     |       |
 8131                  CPU0 -- CPU2
   |                     |       |
 8111                  8111    8131
                                 |
                               8131

The links to the non coherent devices are LDT1 or LDT2, not LDT0.
Do I have to specify the "southbridges with Bus ID 1/2 then, since
it's not on the first Link, or does it have to be 0, since it's the
first south bridge?

northbridge amd/amdk8 "mc0"
        pci 0:18.0
        [..]
        southbridge amd/amd8131 "amd8131"
                pci 1:0.0  
                    ^^^^^
                [..]
        end
        southbridge amd/amd8111 "amd8111"
                pci 1:0.0
                    ^^^^^
                [..]
        end
end

Stefan