[U-Boot] [PATCH v2 03/22] powerpc/mpc85xx: move debug tlb entry after TLB is in known state

[Scott Wood]

On 10/31/2012 01:17:31 AM, Prabhakar Kushwaha wrote:
> On 10/31/2012 02:37 AM, Scott Wood wrote:
>> On 10/30/2012 04:26:16 AM, Prabhakar Kushwaha wrote:
>> I'd rather not see this split this up.  This file is too much of a  
>> complicated ifdef mess already.
>> 
>> The window during which you won't be able to use breakpoints is not  
>> that large.
>> There are other debugging techniques that can be used.
> 
> Can you please share the other techniques. It will help us in future.

For debugging early boot hangs I usually put a branch-to-self somewhere  
in the sequence, and use CCS to see if we're spinning there or if we  
went off to some exception or other badness.  Then I do a binary  
search, moving the branch to self around, to determine where things  
went wrong.

-Scott