Re: State of LDP3430 platform

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Sat, Jan 15, 2011 at 11:37:44PM +0000, Russell King - ARM Linux wrote:
> On Sat, Jan 15, 2011 at 12:38:46PM -0700, Paul Walmsley wrote:
> > On Fri, 14 Jan 2011, Tony Lindgren wrote:
> > 
> > > * Paul Walmsley <paul@xxxxxxxxx> [101207 19:30]:
> > > > On Tue, 7 Dec 2010, Paul Walmsley wrote:
> > > > 
> > > > Regarding the watchdog problem, unfortunately, I can't reproduce on the 
> > > > BeagleBoard with v2.6.37-rc5 with either omap2plus_defconfig or 
> > > > omap2plus_defconfig without CONFIG_WATCHDOG.  If you send along your 
> > > > .config, one of us can try to reproduce the problem with it.  Do the 
> > > > 2.6.38 hwmod and wdt patchsets fix the problem for .38, at least?
> > > 
> > > I've been seeing this on my omap4 panda. While debugging it, I left
> > > u-boot console only running for a few minutes to see if that stays up.
> > > It did.. And after doing that somehow now my panda boots all the way
> > > and stays up. Weird.
> > 
> > Hmmm, do you think the watchdog is what's killing it?  I don't think 
> > leaving u-boot running would affect that?
> 
> Right, well, the LDP3430 (and probably all OMAP) is broken by my
> init_sched_clock() changes because I gave up with testing on OMAP
> platforms.
> 
> Why does OMAP initialize its clock sources soo late, outside of
> the timer initialization?  This means you have no counter in place
> (except for the jiffies counter) during early boot.
> 
> Is there a reason why OMAP uniquely does this?

Right... with that initialization fixed, the LDP3430 boots, and doesn't
reboot during userspace bring-up.  However it doesn't seem to reach a
login prompt (presumably because the change of serial device naming.)

I'm still seeing a flood of MMC errors, eg:

mmcblk0: error -84 transferring data, sector 1847929, nr 184,
 cmd response 0x900, card status 0x900

This means it's regularly seeing data CRC errors.  The original kernel
supplied with the LDP3430 reports no data CRC errors.

--
To unsubscribe from this list: send the line "unsubscribe linux-omap" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux Arm (vger)]     [ARM Kernel]     [ARM MSM]     [Linux Tegra]     [Linux WPAN Networking]     [Linux Wireless Networking]     [Maemo Users]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite Trails]     [Linux Kernel]     [Linux SCSI]

  Powered by Linux