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From: arnd@arndb•de (Arnd Bergmann)
To: linux-arm-kernel@lists•infradead.org
Subject: [PATCH v2 00/15] PCI io.h clean-up
Date: Mon, 16 Jul 2012 09:17:09 +0000	[thread overview]
Message-ID: <201207160917.09875.arnd@arndb.de> (raw)
In-Reply-To: <20120716075214.GA2489@lunn.ch>

On Monday 16 July 2012, Andrew Lunn wrote:
> The changes you made for Orion decreased the window to 64K. However, i
> see here that PCI0 only gets 60K, where as PCI1 gets the full 64K.
> 
> Is this asymmetry correct?
> 
> I see this for both orion5x and kirkwood.

The range from 0x0-0xfff is used for ISA-style devices, including those
behind a PCI bridge or emulating one like a VGA text console or an
IDE controller. We set PCIBIOS_MIN_IO to 0x1000 to avoid conflicts
between those and dynamically probed PCI devices that we might otherwise
put in the same range.

	Arnd

  reply	other threads:[~2012-07-16  9:17 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-07-14  2:03 [PATCH v2 00/15] PCI io.h clean-up Rob Herring
2012-07-14  2:03 ` [PATCH v2 01/15] ARM: Add fixed PCI i/o mapping Rob Herring
2012-07-14 12:22   ` Nicolas Pitre
2012-07-16  4:35     ` Rob Herring
2012-07-16 13:32       ` Nicolas Pitre
2012-07-14  2:03 ` [PATCH v2 02/15] ARM: move PCI i/o resource setup into common code Rob Herring
2012-07-14  2:03 ` [PATCH v2 03/15] ARM: versatile: use fixed PCI i/o mapping Rob Herring
2012-07-14  2:04 ` [PATCH v2 04/15] ARM: tegra: " Rob Herring
2012-07-14  2:04 ` [PATCH v2 05/15] ARM: integrator: " Rob Herring
2012-07-14 21:49   ` Linus Walleij
2012-07-17 17:04     ` Will Deacon
2012-07-17 18:02       ` Rob Herring
2012-07-21 14:31         ` Will Deacon
2012-07-21 21:56           ` Arnd Bergmann
2012-07-22 13:09             ` Rob Herring
2012-07-22 15:08               ` Will Deacon
2012-07-22 16:22                 ` Rob Herring
2012-07-23 12:19                   ` Will Deacon
2012-07-23 14:05                     ` Rob Herring
2012-07-23 14:50                       ` Linus Walleij
2012-07-14  2:04 ` [PATCH v2 06/15] ARM: integrator: remove trailing whitespace on pci_v3.c Rob Herring
2012-07-14  2:04 ` [PATCH v2 07/15] ARM: shark: use fixed PCI i/o mapping Rob Herring
2012-07-14  2:04 ` [PATCH v2 08/15] ARM: footbridge: " Rob Herring
2012-07-14  2:04 ` [PATCH v2 09/15] ARM: dove: " Rob Herring
2012-07-14  2:04 ` [PATCH v2 10/15] ARM: kirkwood: " Rob Herring
2012-07-16  7:10   ` Andrew Lunn
2012-07-16 14:17     ` Rob Herring
2012-07-16 16:25     ` Arnd Bergmann
2012-07-14  2:04 ` [PATCH v2 11/15] ARM: orion5x: " Rob Herring
2012-07-14  2:04 ` [PATCH v2 12/15] iop13xx: use more regular PCI I/O space handling Rob Herring
2012-07-14  2:04 ` [PATCH v2 13/15] ARM: iop13xx: use fixed PCI i/o mapping Rob Herring
2012-07-14  2:04 ` [PATCH v2 14/15] ARM: mv78xx0: use fixed pci " Rob Herring
2012-07-14  2:04 ` [PATCH v2 15/15] ARM: iop3xx: use fixed PCI " Rob Herring
2012-07-14  7:57 ` [PATCH v2 00/15] PCI io.h clean-up Arnd Bergmann
2012-07-14 12:26   ` Nicolas Pitre
2012-07-14 14:54   ` Rob Herring
2012-07-16  7:52 ` Andrew Lunn
2012-07-16  9:17   ` Arnd Bergmann [this message]
2012-07-16 14:03   ` Rob Herring

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