From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.song.fi (smtp1.song.fi [194.100.2.121]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id 3A45D683B6 for ; Sat, 1 Oct 2005 06:16:35 +1000 (EST) Message-ID: <433D9D1E.2010603@iki.fi> Date: Fri, 30 Sep 2005 22:16:30 +0200 From: Kalle Pokki MIME-Version: 1.0 To: Alex Zeffertt References: <4333DF04.3000908@iki.fi> <43395322.1080407@iki.fi> <384d09b865d454875c447cc02c89d001@embeddedalley.com> <4339AD01.30708@iki.fi> <714c16295fbfa97caafd1d0aa3a5932e@embeddedalley.com> <433A6E6D.4070403@iki.fi> <433BDCE7.2060206@iki.fi> <20050930142218.348041d6.ajz@cambridgebroadband.com> <20050930144230.25f4917e.ajz@cambridgebroadband.com> In-Reply-To: <20050930144230.25f4917e.ajz@cambridgebroadband.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Cc: linuxppc-embedded@ozlabs.org Subject: Re: CPM2 early console List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Alex Zeffertt wrote: >>Are there any drawbacks to this approach? >> >> > > >To answer my own question: yes there is a drawback. > > Yes it's not so good for performance. I would be better no just cache-inhibit some specific memory areas. Do you have more than one board to test this with? I only have one now, and this seems so odd I almost suspect a hardware flaw... but usually when I say this aloud it almost certainly turns out to be just a trivial software bug :)