Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754728Ab0K3UcJ (ORCPT ); Tue, 30 Nov 2010 15:32:09 -0500 Received: from gate.crashing.org ([63.228.1.57]:35041 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751511Ab0K3UcH (ORCPT ); Tue, 30 Nov 2010 15:32:07 -0500 Subject: Re: [PATCH 03/11] x86/dtb: Add a device tree for CE4100 From: Benjamin Herrenschmidt To: Sebastian Andrzej Siewior Cc: Mitch Bradley , Scott Wood , sodaville@linutronix.de, x86@kernel.org, devicetree-discuss@lists.ozlabs.org, linux-kernel@vger.kernel.org In-Reply-To: <4CF4E54D.5040403@linutronix.de> References: <1290706801-7323-1-git-send-email-bigeasy@linutronix.de> <1290706801-7323-4-git-send-email-bigeasy@linutronix.de> <1290808645.32570.158.camel@pasglop> <20101128160449.GC30784@www.tglx.de> <1290984809.32570.208.camel@pasglop> <20101129130720.7d060e1c@udp111988uds.am.freescale.net> <1291061128.32570.298.camel@pasglop> <4CF40DF4.9060204@firmworks.com> <4CF4E54D.5040403@linutronix.de> Content-Type: text/plain; charset="UTF-8" Date: Wed, 01 Dec 2010 07:31:40 +1100 Message-ID: <1291149100.32570.393.camel@pasglop> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1007 Lines: 24 On Tue, 2010-11-30 at 12:51 +0100, Sebastian Andrzej Siewior wrote: > My PCI node does not have a reg property but its child nodes. > In x86_of_pci_init() [0] I walk through the PCI child nodes, read the reg > property of each node which gives me the devfn of the device. I pass this > pci_get_slot() and get the pci_dev struct where I attach the of_node. So > it can by used by the pci driver. > > How do I create the PCI device <-> OF node mapping with this? I think your > isa node has this as well. 00008800 is the devfn and I simply forgot the > four blocks of zeros. I think Mitch meant the PCI host bridge usually has a reg property in the address space of the parent, used to identify the bridge uniquely if you have multiple of them. Cheers, Ben. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/