[v7,0/5] Loongson PCI Generic Driver

Message

Jiaxun Yang April 28, 2020, 1:14 a.m. UTC

Hi,

This series converts Loongson PCI into a generic PCI controller
driver and adds support for LS2K SoC and LS7A PCH's PCI support.

Is it possible to let patch 1~3 go through PCI tree and patch
4~5 go through MIPS tree?

Thanks.

v6: Drop first the patch of previous versions. Driver code clean-ups
according to rob's suggestion.

It looks like I had a wrong impression on generic IO port handeling
and now the issue has been fixed, I implemented PCI_IOBASE for MIPS[1].
Now the address is uniform here.

[1]: https://patchwork.kernel.org/cover/11510499/

v7: Fix some minor issues.

Jiaxun Yang (5):
  PCI: Don't disable decoding when mmio_always_on is set
  PCI: Add Loongson PCI Controller support
  dt-bindings: Document Loongson PCI Host Controller
  MIPS: DTS: Loongson64: Add PCI Controller Node
  MIPS: Loongson64: Switch to generic PCI driver

 .../devicetree/bindings/pci/loongson.yaml     |  62 +++++
 arch/mips/Kconfig                             |   1 +
 arch/mips/boot/dts/loongson/rs780e-pch.dtsi   |  12 +
 arch/mips/loongson64/Makefile                 |   2 +-
 arch/mips/loongson64/vbios_quirk.c            |  29 ++
 arch/mips/pci/Makefile                        |   1 -
 arch/mips/pci/fixup-loongson3.c               |  71 -----
 arch/mips/pci/ops-loongson3.c                 | 116 --------
 drivers/pci/controller/Kconfig                |  10 +
 drivers/pci/controller/Makefile               |   1 +
 drivers/pci/controller/pci-loongson.c         | 251 ++++++++++++++++++
 drivers/pci/probe.c                           |   2 +-
 12 files changed, 368 insertions(+), 190 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/loongson.yaml
 create mode 100644 arch/mips/loongson64/vbios_quirk.c
 delete mode 100644 arch/mips/pci/fixup-loongson3.c
 delete mode 100644 arch/mips/pci/ops-loongson3.c
 create mode 100644 drivers/pci/controller/pci-loongson.c