[U-Boot] [PATCH v4] Add initial support for Wandboard dual lite and solo.

Tom Rini trini at ti.com
Thu Mar 14 22:01:59 CET 2013


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On 03/14/2013 04:36 PM, Wolfgang Denk wrote:
> Dear Tom,
> 
> In message <20130314173648.GX23324 at bill-the-cat> you wrote:
>> 
>>>> Is there any reason for not chosing the more standard 5
>>>> second delay?
>>> 
>>> Ok, so let's go with 3 seconds then ;-)
>> 
>> There's a pretty even distribution of 1 3 and 5 second delays
>> (with a few 10s, 2s and 6s).  If they want 1, let them have 1,
>> it's not hard to break into, you have U-Boot starting + 1sec.
> 
> The question is who "they" are.  My vote is for 5 :-)
> 
> A quick AWK oneliner in include/configs finds this statistics:

OK, I forgot to sub -1 from 1, oops.  So it's not very even, but...

> 
> Value Count -1:    49 0:    12 1:    59 2:    30 3:   150 5:   175 
> 6:    14 10:    38 20:     1

We have a lot of variation and no "standard" aside from "board
maintainer picks".  While I'd strongly question anyone who did > 10 I
think this is a board maintainer decision.  Now, if you've convinced
Fabio that 5 or 3 just makes more sense than 1 for all the right
reasons, great.  But "I think 1 is too short" isn't a good one.  1 is
plenty of time to get a keypress in and stop the boot given that you
have roughly from u-boot starting to press any key, not just when the
countdown is going.  Unless you have a bug in your timer code :)

- -- 
Tom
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