From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 20.mo3.mail-out.ovh.net ([178.33.47.94] helo=mo3.mail-out.ovh.net) by canuck.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1Qqh9G-0006cy-7b for barebox@lists.infradead.org; Tue, 09 Aug 2011 07:54:50 +0000 Received: from mail191.ha.ovh.net (b9.ovh.net [213.186.33.59]) by mo3.mail-out.ovh.net (Postfix) with SMTP id CFD67FF95C3 for ; Tue, 9 Aug 2011 09:54:48 +0200 (CEST) Date: Tue, 9 Aug 2011 09:36:07 +0200 From: Jean-Christophe PLAGNIOL-VILLARD Message-ID: <20110809073607.GF22213@game.jcrosoft.org> References: <1312786003-14734-1-git-send-email-s.hauer@pengutronix.de> <20110808070650.GA22017@game.jcrosoft.org> <20110808073247.GO31404@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20110808073247.GO31404@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: barebox-bounces@lists.infradead.org Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: ARM: use high vectors if possible To: Sascha Hauer Cc: barebox@lists.infradead.org On 09:32 Mon 08 Aug , Sascha Hauer wrote: > Hi J, > > On Mon, Aug 08, 2011 at 09:06:50AM +0200, Jean-Christophe PLAGNIOL-VILLARD wrote: > > On 08:46 Mon 08 Aug , Sascha Hauer wrote: > > > Created this series to get high vector support. Using high vectors > > > at 0xffff0000 allow us to map in a faulting page at 0x0 with which > > > we can catch NULL pointer dereferences. The other patches are only > > > some cleanups around exceptions which I came along the way. > > be careful on ixp4xx (which I work on 0x0 is the nor flash address) > > Well, we already map the vectors to 0x0 without this series, so ixp4xx > is broken anyway. > So we either have to add a flag somewhere to disable mapping anything > to 0x0 or we have to use the mmu to map the nor flash somewhere else. > > I see this is a problem which must be solved, but this series does not > change the current situation in this regard. I'll prefer to remap the flash and keep the same scheme everywhere can you drop a line in the doc about this Best Regards, J. _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox