From mboxrd@z Thu Jan  1 00:00:00 1970
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Subject: Re: [PATCH v7 1/6] pci: Introduce pci_register_io_range() helper
 function.
Date: Mon, 07 Apr 2014 19:13:28 +1000
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To: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>, linaro-kernel <linaro-kernel@lists.linaro.org>, Arnd Bergmann <arnd@arndb.de>, linux-pci <linux-pci@vger.kernel.org>, Will Deacon <Will.Deacon@arm.com>, LKML <linux-kernel@vger.kernel.org>, Grant Likely <grant.likely@secretlab.ca>, Tanmay Inamdar <tinamdar@apm.com>, Catalin Marinas <Catalin.Marinas@arm.com>, Bjorn Helgaas <bhelgaas@google.com>, LAKML <linux-arm-kernel@lists.infradead.org>
List-Id: devicetree@vger.kernel.org

On Mon, 2014-04-07 at 09:35 +0100, Liviu Dudau wrote:
> Thanks for the summary, is really useful as I was recently looking
> into code in that
> area. One thing I was trying to understand is why ppc needs _IO_BASE
> at all rather
> than using the generic PCI_IOBASE? 

Perhaps because our code predates it ? :-) I haven't looked much into
the semantics of PCI_IOBASE yet...

Cheers,
Ben.