[U-Boot] [PATCH] OMAP[34]: fix broken timer
Albert ARIBAUD
albert.u.boot at aribaud.net
Wed Jun 29 08:35:20 CEST 2011
Hi John,
Le 28/12/2010 01:33, John Rigby a écrit :
> As implemented now the timer used to implement __udelay counts
> to 0xffffffff and then gets stuck there because the the programmed
> reload value is 0xffffffff. This value is not only wrong but
> illegal according to the reference manual.
>
> One can reproduce the bug by leaving a board at the u-boot prompt
> for sometime then issuing a sleep command. The sleep will hang
> forever.
>
> The timer is a count up timer that reloads as it rolls over
> from 0xffffffff so the correct load value is 0.
>
> Change TIMER_LOAD_VAL from 0xffffffff to 0 and introduce
> a new constant called TIMER_OVERFLOW_VAL set to 0xffffffff.
>
> Signed-off-by: John Rigby<john.rigby at linaro.org>
Applied to u-boot-arm/master, thanks.
Amicalement,
--
Albert.
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