[PATCH 1/2] PCI: mvebu - The bridge should obey the MEM and IO command bits

[Thomas Petazzoni]

Dear Jason Gunthorpe,

On Thu, 31 Oct 2013 17:32:59 -0600, Jason Gunthorpe wrote:
> 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 it can attempt to setup bogus windows that the PCI core code
> creates during 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.
> 
> Signed-off-by: Jason Gunthorpe <jgunthorpe at obsidianresearch.com>
> ---
>  drivers/pci/host/pci-mvebu.c | 14 ++++++++++++--
>  1 file changed, 12 insertions(+), 2 deletions(-)

Tested-by: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com