Re: [PATCHv2 2/2] ARM: debug: Move DEBUG_ICEDCC into the DEBUG_LL choice

[David Brown <davidb@codeaurora.org>]

On Thu, Sep 29, 2011 at 10:22:42AM -0700, Stephen Boyd wrote:
> >> One of the problems you'll encounter is that there's places where we
> >> don't have any timer infrastructure (eg, decompressor) and software
> >> timing loops won't work (they'll be too slow for the lower-end CPUs
> >> and too fast for the upper-end CPUs.)
> > Agreed, software timing loops are the only option and it's impossible to get
> > them right everywhere. I think the Kconfig help text should be updated so
> > that the timeout paragraph is removed.
> 
> Yes if you wait a long time the timeout for each character will expire
> and the execution will continue.

Wouldn't it be better to detect the first timeout and then stop trying
to write to the DCC?

But, do we really want fancy auto-detection stuff in DEBUG_LL?  A
timeout might make sense for a DCC console, but not here.

David

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