From mboxrd@z Thu Jan 1 00:00:00 1970 From: jason@lakedaemon.net (Jason Cooper) Date: Thu, 17 Oct 2013 09:10:31 -0400 Subject: [PATCH v2] PCI: mvebu - Support a bridge with no IO port window In-Reply-To: <1381868182-8544-1-git-send-email-jgunthorpe@obsidianresearch.com> References: <1381868182-8544-1-git-send-email-jgunthorpe@obsidianresearch.com> Message-ID: <20131017131031.GD22434@titan.lakedaemon.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Tue, Oct 15, 2013 at 02:16:22PM -0600, Jason Gunthorpe wrote: > Make pcie-io-aperture and the IO port MBUS ID in ranges optional. > If not provided the bridge reports to Linux that IO space mapping is > not supported and refuses to configure an IO mbus window. > > This allows both complete disable (do not specify pcie-io-aperture) and > per-port disable (do not specify a IO target ranges entry for the port) > > Most PCIE devices these days do not require IO support to function, > so having an option to disable it in the driver is useful. > > Signed-off-by: Jason Gunthorpe > --- > drivers/pci/host/pci-mvebu.c | 64 +++++++++++++++++++++++++++++--------------- > 1 file changed, 43 insertions(+), 21 deletions(-) Applied to mvebu/drivers thx, Jason.