Messages in this thread | | | Date | Tue, 22 Sep 2015 12:02:26 -0700 | From | David Daney <> | Subject | Re: [PATCH 3/3] PCI: generic: Add support for Cavium ThunderX PCIe root complexes. |
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On 09/22/2015 11:52 AM, Will Deacon wrote: > On Thu, Sep 17, 2015 at 11:41:34PM +0100, David Daney wrote: >> From: David Daney <david.daney@cavium.com> >> >> The config space for external PCIe root complexes on some Cavium >> ThunderX SoCs is very similar to CAM and ECAM, but differs in the >> shift values that have to be applied to the bus and devfn numbers to >> compose that address window offset. These root complexes also have >> the interesting property that there is no root bridge, so the standard >> manner of limiting scanning to only the first device doesn't work. We >> can use the standard pci-host-generic driver if we make a minor >> addition to handle these differences, so we... >> >> Add a mapping function for ThunderX PCIe root complexes with a bus >> shift of 24 and devfn shift of 16. Ignore accesses for devices other >> than the first device on the primary bus. >> >> Document the whole thing in devicetree/bindings/pci/host-generic-pci.txt >> >> Signed-off-by: David Daney <david.daney@cavium.com> >> --- >> .../devicetree/bindings/pci/host-generic-pci.txt | 8 +++--- >> drivers/pci/host/pci-host-generic.c | 29 ++++++++++++++++++++++ >> 2 files changed, 34 insertions(+), 3 deletions(-) > > Thanks, this looks better now: > > Acked-by: Will Deacon <will.deacon@arm.com> >
Thanks Will.
Because patches 1/3 and 2/3 will be reworked, I will re-send this as a stand-alone patch.
David Daney
> Will >
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