From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 13933 invoked by alias); 8 Oct 2012 19:11:30 -0000 Received: (qmail 13917 invoked by uid 22791); 8 Oct 2012 19:11:28 -0000 X-SWARE-Spam-Status: No, hits=-2.8 required=5.0 tests=AWL,BAYES_00,KHOP_THREADED X-Spam-Check-By: sourceware.org Received: from hagrid.ecoscentric.com (HELO mail.ecoscentric.com) (212.13.207.197) by sourceware.org (qpsmtpd/0.43rc1) with ESMTP; Mon, 08 Oct 2012 19:11:23 +0000 Received: from localhost (hagrid.ecoscentric.com [127.0.0.1]) by mail.ecoscentric.com (Postfix) with ESMTP id 29C652FB082B for ; Mon, 8 Oct 2012 20:11:22 +0100 (BST) Received: from mail.ecoscentric.com ([127.0.0.1]) by localhost (hagrid.ecoscentric.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id QFvXNpozF83W; Mon, 8 Oct 2012 20:11:17 +0100 (BST) From: bugzilla-daemon@bugs.ecos.sourceware.org To: ecos-bugs@ecos.sourceware.org Subject: [Bug 1001606] Enable the cache on Kinetis in RAM startup mode X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: eCos X-Bugzilla-Component: HAL X-Bugzilla-Keywords: X-Bugzilla-Severity: enhancement X-Bugzilla-Who: ilijak@siva.com.mk X-Bugzilla-Status: NEEDINFO X-Bugzilla-Priority: low X-Bugzilla-Assigned-To: jifl@ecoscentric.com X-Bugzilla-Target-Milestone: --- X-Bugzilla-Changed-Fields: Attachment #1950 is obsolete In-Reply-To: References: X-Bugzilla-URL: http://bugs.ecos.sourceware.org/ Auto-Submitted: auto-generated Content-Type: text/plain; charset="UTF-8" MIME-Version: 1.0 Date: Mon, 08 Oct 2012 19:11:00 -0000 Message-Id: <20121008191117.B54072F78004@mail.ecoscentric.com> Mailing-List: contact ecos-bugs-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Post: List-Help: , Sender: ecos-bugs-owner@sourceware.org X-SW-Source: 2012/txt/msg01287.txt.bz2 Please do not reply to this email. Use the web interface provided at: http://bugs.ecos.sourceware.org/show_bug.cgi?id=1001606 Ilija Kocho changed: What |Removed |Added ---------------------------------------------------------------------------- Attachment #1950|0 |1 is obsolete| | --- Comment #23 from Ilija Kocho 2012-10-08 20:11:02 BST --- Created an attachment (id=1951) --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 -- Configure bugmail: http://bugs.ecos.sourceware.org/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.