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From: Dirk Behme <dirk.behme@googlemail.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] DaVinci DM644x timer problem (divided by 16)
Date: Thu, 20 Mar 2008 15:24:38 +0100	[thread overview]
Message-ID: <47E273A6.9090404@googlemail.com> (raw)
In-Reply-To: <4CD35CD1F8085945B597F80EEC8942138A2495@exc01.bk.prodrive.nl>

Pieter Voorthuijsen wrote:
> Hello,
> 
> Some months ago, a patch was submitted ([ARM] fix timer overflow in
> DaVinci). The result was that in /cpu/arm926ejs/davinci/timer.c
> read_timer was divided by 16. 
> 
> http://www.denx.de/cgi-bin/gitweb.cgi?p=u-boot.git;a=commit;h=ea686f52e4
> 5b3df2938866d3f5a98bb2556dfe2b
> 
> Right now, when I have my bootdelay variable (on a DVEVM) set to 2, and
> countdown takes 32 seconds... Also iprobe got very very  very slow.
> Maybe more items are affected by this timer division.
> 
> Is anybody else seeing this? Clearly when the timer is used by several
> blocks, it cannot be easily divided by 16. I think we need something
> else to work with the wrap around of the timer...

Thanks for the report!

Any idea what might be better?

Thanks

Dirk

  reply	other threads:[~2008-03-20 14:24 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-03-20 12:18 [U-Boot-Users] DaVinci DM644x timer problem (divided by 16) Pieter Voorthuijsen
2008-03-20 14:24 ` Dirk Behme [this message]
2008-03-21  8:19   ` Pieter Voorthuijsen
2008-03-21  8:54     ` Dirk Behme
     [not found]   ` <47E39D32.6090601@googlemail.com>
2008-03-21 15:33     ` Pieter Voorthuijsen
2008-03-21 23:20       ` Wolfgang Denk

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