[U-Boot] [PATCH 2/4][v2] powerpc/85xx:Fix MSR[DE] bit in MSR to support debugger

[Scott Wood]

On 04/25/2012 05:57 AM, Joakim Tjernlund wrote:
>>
>> Debugging of e500 and e500v1 processer requires MSR[DE] bit to be set always.
>> Where MSR = Machine State register
>>
>> Make sure of MSR[DE] bit is set uniformaly across the different execution
>> address space i.e. AS0 and AS1.
> 
> Hi
> 
> We are trying to bring up our custom P2010 RDB based board. boot is NOR
> based and we cannot get past the rfi below.
> 	lis	r6,MSR_IS|MSR_DS at h
> 	ori	r6,r6,MSR_IS|MSR_DS at l
> 	lis	r7,switch_as at h
> 	ori	r7,r7,switch_as at l
> 
> 	mtspr	SPRN_SRR0,r7
> 	mtspr	SPRN_SRR1,r6
> 	rfi
> 
> switch_as:
> 
> We end up with a TLB exception no matter what we do, even after applying this patch.

Did you apply the entire patchset, and define CONFIG_SYS_PPC_E500_DEBUG_TLB?

-Scott