Bug 23399 - TI925DC: cache problems
TI925DC: cache problems
Product: eCos
Classification: Retired
Component: HAL (Show other bugs)
i386 Linux
medium Severity medium
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Assigned To: ecc-bugs-int
Depends On:
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Reported: 2001-01-05 04:45 EST by Jesper Skov
Modified: 2007-04-18 12:30 EDT (History)
0 users

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Doc Type: Bug Fix
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Last Closed: 2001-05-28 03:10:03 EDT
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Description Jesper Skov 2001-01-05 04:45:16 EST
Never got the caches on the OMAP to work properly - missing some detailed
info from TI (which has been requested).

Impact flash programming / performance overall, since it results in not
being able to safely disable/enable caches while programming flash.
Workaround is to leave caches disabled, but this results in horrible
Comment 1 Jesper Skov 2001-05-28 03:09:59 EDT
Interestingly, Gary also failed to make D-caches work on some other ARM9
variant. Appears there's some magic required in flushing/clearing the
D-cache on this variant of the ARM.
Comment 2 Jesper Skov 2001-12-03 06:29:38 EST
This turned out to be a bad limit in one of the ARM9 HAL's cache handling loops.

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