[U-Boot] [PATCH 3/4][v2] powerpc/85xx:Make debug exception vector accessible

[Scott Wood]

On 03/22/2012 02:51 PM, Timur Tabi wrote:
> Scott Wood wrote:
>>>> For your kind information : in start.S, label label
>>>> "create_ccsr_new_tlb", "create_ccsr_old_tlb" uses  MAS7  without
>>>> CONFIG_ENABLE_36BIT_PHYS  #define.
>>>> It should be fixed ??
> 
>> Yes, it should be fixed.  That was a fairly recent change and perhaps
>> e500v1 has not been tested since then -- Timur, could you look at this?
> 
> On e500v1 parts, CONFIG_SYS_CCSRBAR_PHYS_HIGH will always be 0, so it will
> only write 0 to MAS7.  Is that still considered a bad thing?  The tlbwe
> will ignore MAS7.

Either it's needed, or we should get rid of CONFIG_ENABLE_36BIT_PHYS
entirely.  Either way, we should test the results on e500v1 hardware.

-Scott