[Bug 1001606] Enable the cache on Kinetis in RAM startup mode

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Ilija Kocho <ilijak@siva.com.mk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Attachment #1950|0                           |1
        is obsolete|                            |

--- Comment #23 from Ilija Kocho <ilijak@siva.com.mk> 2012-10-08 20:11:02 BST ---
Created an attachment (id=1951)
 --> (http://bugs.ecos.sourceware.org/attachment.cgi?id=1951)
Bus arbitration tweak for copy-back DDRAM 121008

This is an alternative to round-robin.
With a little tweak of bus arbitration priority, prior to spin-check of cache
status the priorities of PC and PS master of DDRAM slave are swapped (only in
case PC priority is bigger than PS priority) so code execution now can't stale
the DCACHE flushing (or any other operation). After the operation, the
priorities are restored, so practically all the time, the system works with
default settings (or whatever may have been set by application).

Note: This patch is incremental to attachment 1949.

Jifl,
I hope that now Kinetis CACHE has achieved desired functionality.

Ilija

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