From mboxrd@z Thu Jan 1 00:00:00 1970 From: Nishanth Menon Subject: RE: [PATCH 1/2] OMAP3 PM: move omap3 sleep to ddr Date: Thu, 18 Nov 2010 09:33:42 -0600 Message-ID: <5a0fdb97a16d4c23b22aeeed499ff188@mail.gmail.com> References: <1290091906-32539-1-git-send-email-j-pihet@ti.com><1290091906-32539-2-git-send-email-j-pihet@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Return-path: Received: from na3sys009aog108.obsmtp.com ([74.125.149.199]:46216 "EHLO na3sys009aog108.obsmtp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758957Ab0KRPeR (ORCPT ); Thu, 18 Nov 2010 10:34:17 -0500 Received: by mail-ew0-f51.google.com with SMTP id 2so2722973ewy.10 for ; Thu, 18 Nov 2010 07:34:12 -0800 (PST) In-Reply-To: Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: Jean Pihet Cc: Vishwanath Sripathy , linux-omap@vger.kernel.org, Kevin Hillman , Jean Pihet-XID > -----Original Message----- > From: Jean Pihet [mailto:jean.pihet@newoldbits.com] > Sent: Thursday, November 18, 2010 9:15 AM [...] > >> >> > >> >> Tested on ZOOM3, OMAP3EVM, Beagleboard, n900 > >> >> with full RET and OFF modes. > >> > > >> > Sorry, But I disagree with this patch. > >> > > >> > There is a silicon errata which cannot be handled with this - RTA > >> disable > >> > - errata i608 > >> > > >> > You need to disable RTA while coming out of OFF - we cannot handle > > this > >> on > >> > > >> > GP devices if this is not done. > >> When you come out of Core off, SRAM contents are anyway lost. So you > >> have to run from DDR after ROM Code completes. This behavior has not > >> changed with this patch. I fail to understand your concern here. > > I could potentially be mistaken. Let me do one thing - I will post out > the > > > > patches that I have to the list and we can see how this all works > > together > Ok, fine. > I did not find any 36xx specific workaround for the errata i608 issue. > Is there one already available? Yes, I have a series of patches addressing that as well.. hoping to test On EMU/HS devices prior to posting - GP devices (3430/3630) tested. Regards, Nishanth Menon