[U-Boot] [PATCH 01/21] Define new system_restart() and emergency_restart()

[Graeme Russ]

On 15/03/11 09:01, Wolfgang Denk wrote:
> Dear "Moffett, Kyle D",
> 
> In message <44A75130-ED4F-46D6-B0E4-12433CC15142 at boeing.com> you wrote:
>>

[Snip]

I kind of like the idea of different reset sources (CPU exception, hardware
failure, user initiated) but agree copying the linux architecture is over
the top.

Is there any reason reset() could not take a 'reason' parameter? It could
be a bit-mask with CPU, SOC and arch reserved bits (unhandled exception,
user initiated, panic etc) and board specific bits

Board or arch specific code could handle different reasons however they
please (like logging it in NVRAM prior to restart, gracefully shutting down
multiple CPU's, clearing DMA buffers etc)

All 'hang', 'panic', 'reset' etc code can be simplified into a single code
path (although calling 'reset' to 'hang' is a bit odd)

Just a thought

Regards,

Graeme