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Subject[PATCH v4 0/2] Tango PCIe controller support

This patch was split in two, to ease review of two orthogonal
parts (MSI controller and host bridge). NB: the patch is
just split in two where host bridge support starts.

Changes from v3 to v4

In the MSI part:
- Support 256 MSIs instead of only 32
- Define tango_{ack,mask,unmask} callbacks for the HW irq_chip
- Use a spinlock instead of a mutex
- Rename msi_mask register to msi_enable

In the host bridge part:
- Move several quirk-handling snippets out of the config space read function
- Check whether the PCIe link is up at probe-time

Other files
- Let the framework compute the bus-range from the config space width
- Be slightly more verbose in the Kconfig help

What has *not* changed, waiting from feedback from Bjorn:

- Pray that config and mem space accesses NEVER occur concurrently.
- Using of_device_is_compatible() vs of_device_get_match_data()

Marc Gonzalez (2):
PCI: Add tango MSI controller support
PCI: Add tango PCIe host bridge support

Documentation/devicetree/bindings/pci/tango-pcie.txt | 32 ++++
drivers/pci/host/Kconfig | 8 +
drivers/pci/host/Makefile | 1 +
drivers/pci/host/pcie-tango.c | 393 +++++++++++++++++++++++++++++++++++++++
include/linux/pci_ids.h | 2 +
5 files changed, 436 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pci/tango-pcie.txt
create mode 100644 drivers/pci/host/pcie-tango.c


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