Re: [U-Boot-Users] DaVinci DM644x timer problem (divided by 16)

Hi Dirk,

If I understand correctly: When the timer wraps around, flash writes or other long lasting actions get timed-out.

Currently the timer is in 32 bit unchained mode, why not place it 64 bit mode?

Best regards, Pieter

-----Original Message----- From: Dirk Behme [mailto:dirk.behme@googlemail.com] 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