>>> How do I find the address, reg, and range for nodes like localbus,
>>> soc, eth0, cpm, serial etc.?
>
> If your CCSRBAR is 0xfa200000, then pretty much anywhere you see 0xff0xxxxx
> change it to 0xfa2xxxxx.
I'm not sure about the range settings of 0xfe000000. How do you get this?
local...@fa200100 {
compatible = "fsl,mpc885-localbus", "fsl,pq1-localbus",
"simple-bus";
#address-cells = <2>;
#size-cells = <1>;
reg = <0xfa200100 0x40>;
ranges = <
0 0 0xfe000000 0x01000000 // I'm not sure about this?
>;
};
>> Linux/PowerPC load: root=/dev/ram
>> Finalizing device tree... flat tree at 0x59e300
>>
>> The gdb showed deadbeef.
>> (gdb) target remote ppcbdi:2001
>> Remote debugging using ppcbdi:2001
>> 0xdeadbeef in ?? ()
>> (gdb)
>>
>> The kernel doesn't seem to start. What could go wrong here?
>
> Pretty much anything. :-)
I realized that. :-P The kernel booting was able to stop at
start_kernel(). I'm going to trace further.
> Make sure that you've got Linux platform code enabled that matches the
> top-level compatible of your device tree. Try enabling PPC_EARLY_DEBUG_CPM,
> making sure to update PPC_EARLY_DEBUG_CPM_ADDR to 0xfa202008.
I enabled this early debug feature but don't know this address change.
I'll try it later.
Thanks a lot, Scott.
-Shawn.
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