Ticket #1017 (closed defect: fixed)

Opened 11 years ago

Last modified 11 years ago

Xglamo stalls after some time

Reported by: olv@… Owned by: olv@…
Priority: high Milestone:
Component: Xfbdev (kdrive), Xglamo Version: current svn head
Severity: normal Keywords:
Cc: buglog@… Blocked By:
Blocking: Estimated Completion (week):
HasPatchForReview: PatchReviewResult:
Reproducible:

Description

Xglamo stops working after some time, complaining "Timeout idling
accelerator...", etc.

Restarting Xglamo solves the issue. But after a while, same thing happens.

Attachments

fix-glamo-memory-timing.patch (687 bytes) - added by olv@… 11 years ago.
fix memory timing between s3c2442 and glamo
a.patch (575 bytes) - added by olv@… 11 years ago.
less waiting cycles
logical-waiting-cycles.patch (575 bytes) - added by olv@… 11 years ago.
use more logical values

Change History

comment:1 Changed 11 years ago by olv@…

  • Owner changed from mickey@… to olv@…

It is a memory timing issue and the patch above fixes the issue.

It adds as many as possible waiting cycles to s3c2442 memory controller. It
should be possible to lower the number of waiting cycles and find a balance
between performance and stability.

comment:2 Changed 11 years ago by olv@…

  • Status changed from new to assigned

comment:3 Changed 11 years ago by dodji@…

so, this patch should be applied to u-boot in OE, is that correct ?

comment:4 Changed 11 years ago by olv@…

It might not need that much waiting cycles as added by the patch. I plan to fix
that this week.

Any idea on how this can be done? It looks to me that the original settings try
to fit the timing diagram given in glamo's spec, but somehow that doesn't work.

comment:5 Changed 11 years ago by graeme@…

I have added this patch to OE for now just so people can use it easilly. Kick me
if you make newer versions.

Changed 11 years ago by olv@…

fix memory timing between s3c2442 and glamo

comment:6 Changed 11 years ago by olv@…

  • attachments.isobsolete changed from 0 to 1

Changed 11 years ago by olv@…

less waiting cycles

comment:7 Changed 11 years ago by olv@…

  • attachments.isobsolete changed from 0 to 1

comment:8 Changed 11 years ago by olv@…

s/Quoted from the spec/To my understanding/

bugzilla should allow people to edit their own comments :(

comment:9 Changed 11 years ago by laforge@…

  • Status changed from assigned to closed
  • Resolution set to fixed

I've applied this fix to u-boot's B1CON (svn rev. 3648)

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