Pieter Voorthuijsen wrote: > Hi Dirk, > > If I understand correctly: When the timer wraps around, flash writes or > other long lasting actions get timed-out.
Yes. I never observed it myself. The inital report is http://article.gmane.org/gmane.comp.boot-loaders.u-boot/32563/match=patch+fix+timer+overflow+davinci but the patch was rejected by Wolfgang. I then tried to fix it with a better patch, but seems that I failed ;) Sorry for that. > Currently the timer is in 32 bit unchained mode, why not place it 64 bit > mode? Good idea! I'm not so familiar with DaVinci timer, but sounds like an option. This will need some changes to davinci/timer.c to handle 64bit timer, but this shouldn't be to hard, right? Do you like to send a patch? Many thanks Dirk > -----Original Message----- > From: Dirk Behme [mailto:[EMAIL PROTECTED] > Sent: donderdag 20 maart 2008 15:25 > To: Pieter Voorthuijsen > Cc: u-boot-users@lists.sourceforge.net > Subject: Re: [U-Boot-Users] DaVinci DM644x timer problem (divided by 16) > > 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=ea686f52 >>e4 >>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 > ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
