[PATCH 2/5] SPARC: add BSP specific error handler

[Daniel Hellstrom]

On 06/04/2014 11:51 AM, Sebastian Huber wrote:
> On 2014-06-04 11:23, Daniel Hellstrom wrote:
>> Instead of calling the system call TA instruction directly it
>> is better paractise to isolate the trap implementation to the
>> system call functions.
>>
>> The BSP_fatal_return() should always exist, regardless of SPARC
>> CPU.
>
> Why do we need BSP_fatal_return() and bsp_reset()?

The LEON3 doesn't, it does not define bsp_reset. I tried to preserve the 
behaviour of LEON2 and ERC32 BSPs, the bsp_reset is called from the 
fatal handler. On all SPARC BSPs, ending up in BSP_fatal_return is a 
result of bootcard or bsp_start_on_secondary_processor returning which 
they should never do. The two functions also have different error exit 
codes.