Bug 23399

Summary:	TI925DC: cache problems
Product:	[Retired] eCos	Reporter:	Jesper Skov <jskov>
Component:	HAL	Assignee:	ecc-bugs-int
Status:	CLOSED CURRENTRELEASE	QA Contact:	ecc-bugs-int
Severity:	medium	Docs Contact:
Priority:	medium
Version:	CVS
Target Milestone:	---
Target Release:	---
Hardware:	i386
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2001-05-28 07:10:03 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Jesper Skov 2001-01-05 09:45:16 UTC

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
performance.

Comment 1 Jesper Skov 2001-05-28 07:09:59 UTC

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 11:29:38 UTC

This turned out to be a bad limit in one of the ARM9 HAL's cache handling loops.