From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754128Ab3L3DOq (ORCPT ); Sun, 29 Dec 2013 22:14:46 -0500 Received: from gate.crashing.org ([63.228.1.57]:50115 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753422Ab3L3DOp (ORCPT ); Sun, 29 Dec 2013 22:14:45 -0500 Message-ID: <1388373200.4373.25.camel@pasglop> Subject: Re: commit e38c0a1f breaks powerpc boards with uli1575 chip From: Benjamin Herrenschmidt To: Nikita Yushchenko Cc: Rob Herring , "devicetree@vger.kernel.org" , Arnd Bergmann , Dmitry Krivoschekov , Alexey Lugovskoy , Thierry Reding , linux-kernel@vger.kernel.org, Grant Likely , linuxppc-dev@lists.ozlabs.org Date: Mon, 30 Dec 2013 14:13:20 +1100 In-Reply-To: <201312190842.02702@blacky.localdomain> References: <201312171135.38576@blacky.localdomain> <52B1EC15.5070606@gmail.com> <201312190842.02702@blacky.localdomain> Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.8.4-0ubuntu1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2013-12-19 at 08:42 +0400, Nikita Yushchenko wrote: > No, this does not help. > > I've dumped the actual content of 'range' and 'addr' at the failure > point > (i.e. ar point that returns error with e38c0a1f but passes without > e38c0a1f ): > > OF: default map, cp=0, s=10000, da=70 > range: 01 00 00 00 00 00 00 00 00 00 00 00 > addr: 00 00 00 00 00 00 00 00 00 00 00 70 Something that has a #address-cells larger than 2, or more generally, an address field that contains more than a single number, must have a specific translation backend, like we have for PCI. This is a bit annoying but originates from the original OFW stuff on which this stuff is based where the bus node would provide the methods for translation. Cheers, Ben.