seems dts config file error , but from http://www.acmesystems.it/compile_linux_3_16
maybe you should try this patch http://www.acmesystems.it/www/compile_linux_3_16/acme.patch or can you show up your patch ? 2014-12-01 10:38 GMT+08:00 <meino.cra...@gmx.de>: > Hi liyaoshi, > > thanks for your posting! > > I am not searching for workaround -- the small Arietta will > become a mobile device which has no connection to the > internet. > > I am searching for the reasons of the two problems and want > to fix the (currently unknown) bugs behind that. > > Even without sync an RTC should not become THAT wrong as > the RTC of the Arietta currently. > > What does this dump from dmesg mean? > > Best regards, > Meino > > > > > liyaoshi <liyao...@gmail.com> [14-12-01 02:57]: > > About the time clock , as I know , its about the crystal , called jitter > ? > > You can correct it with NTP client or GPS , ( if you have gps ) > > > > 2014-11-30 23:55 GMT+08:00 <meino.cra...@gmx.de>: > > > > > Hi, > > > > > > I am using a Arietta G25 (http://www.acmesystems.it/arietta) with > > > Robert Nelsons Kernel 3.17.3 and the kernel configuration provided > > > by Acmesystems for their Debian Linux for the Arietta G25 based on > > > Linux kernel 3.16.1. > > > As far as I know the only patches they used are agains dts/dtb files > > > (I use the same ones) and to configure the kernel without the need of > > > using makeconfig. > > > > > > So far so nice...the system boots with a Gentoo stage3 rootfs. > > > > > > There only two things left: > > > 1.) shuthdown -h -H now (as said to be used by Acmesystems) reboots > > > the system instead of powering it off (which works with their > > > image). > > > > > > 2.) The at91 RTC is missing the "Real"...the difference are several > > > minutes per hour. > > > > > > I compared the dmesg output of the Arietta G25 booted with one and > > > the other system. With the Gentoo system there is one line which > > > irritates me and may indicate a way to a solution for the RTC problem: > > > > > > [ 0.000000] Main crystal frequency not set, using approximate value > > > [ 0.000000] master clk is overclocked > > > [ 0.000000] sched_clock: 32 bits at 128 Hz, resolution 7812500ns, > wraps > > > every 16777216000000000ns > > > [ 0.000000] Console: colour dummy device 80x30 > > > [ 0.054687] Calibrating delay loop... 220.07 BogoMIPS (lpj=862208) > > > > > > The clock frequency of the CPU is unknown??? The Debian system does > > > not have that problem... > > > > > > Any suggestion how to fix one or (better! :) both problem is VERY 8) > > > appreciated! Thank you very much in advance for any help! > > > > > > Best regards, > > > Meino > > > > > > > > > > > > -- > > > For more options, visit http://beagleboard.org/discuss > > > --- > > > You received this message because you are subscribed to the Google > Groups > > > "BeagleBoard" group. > > > To unsubscribe from this group and stop receiving emails from it, send > an > > > email to beagleboard+unsubscr...@googlegroups.com. > > > For more options, visit https://groups.google.com/d/optout. > > > > > > > -- > > For more options, visit http://beagleboard.org/discuss > > --- > > You received this message because you are subscribed to the Google > Groups "BeagleBoard" group. > > To unsubscribe from this group and stop receiving emails from it, send > an email to beagleboard+unsubscr...@googlegroups.com. > > For more options, visit https://groups.google.com/d/optout. > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to beagleboard+unsubscr...@googlegroups.com. > For more options, visit https://groups.google.com/d/optout. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
