From: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Date: Tue, 26 Nov 2013 18:02:54 +0000 (-0700)
Subject: PCI: mvebu: Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits
X-Git-Tag: v3.14-rc1~132^2~22^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=43a16f94445310800e39d54aaa534f2ce7dbe0a2;p=pandora-kernel.git

PCI: mvebu: Obey bridge PCI_COMMAND_MEM and PCI_COMMAND_IO bits

When PCI_COMMAND_MEMORY/PCI_COMMAND_IO are cleared, the bridge should not
allocate windows or even look at the window limit/base registers.

Otherwise we may set up bogus windows while the PCI core code performs
discovery.  The core will leave PCI_COMMAND_IO cleared if it doesn't need
an IO window.

Have mvebu_pcie_handle_*_change respect the bits, and call the change
function whenever the bits changes.

Tested-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Jason Cooper <jason@lakedaemon.net>
---

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