From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lxorguk.ukuu.org.uk (unknown [81.2.110.250]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by ozlabs.org (Postfix) with ESMTP id C5D1367BB4 for ; Mon, 20 Nov 2006 23:04:21 +1100 (EST) Date: Mon, 20 Nov 2006 12:10:15 +0000 From: Alan To: Stefan Roese Subject: Re: [PATCH] serial: Use real irq on UART0 (IRQ = 0) on PPC4xx systems Message-ID: <20061120121015.2fb667d0@localhost.localdomain> In-Reply-To: <200611201255.37754.ml@stefan-roese.de> References: <200611201200.36780.ml@stefan-roese.de> <20061120114248.60bb0869@localhost.localdomain> <200611201255.37754.ml@stefan-roese.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Cc: linux-kernel@vger.kernel.org, linuxppc-embedded@ozlabs.org List-Id: Linux on Embedded PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Mon, 20 Nov 2006 12:54:32 +0100 (MET) Stefan Roese wrote: > Let's see, if I got this right. You mean that on such a platform, where 0 is a > valid physical IRQ, we should assign another value as virtual IRQ number (not > 0 and not -1 of course). And then the platform "pic" implementation should > take care of the remapping of these virtual IRQ numbers to the physical > numbers. > > Correct? Absolutely correct in all the detail.