[0/4,v3] IXP4xx PCI rework

Message

Linus Walleij May 9, 2021, 10:20 p.m. UTC

This series reworks the IXP4xx PCI driver. The plan is the
following:

- Implement a new proper host controller that is just used
  when booting IXP4xx from device tree. (This patch series.)
- Delete all boardfiles.
- Delete the old PCI driver in arch/arm/mach-ixp4xx.
- Only device tree and proper PCI driver remains.

Changes from v2->v3:
- Fix bindings according to Rob's comments
- Fix a double assignment in the driver

Changes from v1->v2:
- Address Arnds comments
- Address build errors

Linus Walleij (4):
  ARM/ixp4xx: Move the virtual IObases
  ARM/ixp4xx: Make NEED_MACH_IO_H optional
  PCI: ixp4xx: Add device tree bindings for IXP4xx
  PCI: ixp4xx: Add a new driver for IXP4xx

 .../bindings/pci/intel,ixp4xx-pci.yaml        | 100 +++
 MAINTAINERS                                   |   6 +
 arch/arm/Kconfig                              |   3 +-
 arch/arm/Kconfig.debug                        |   4 +-
 arch/arm/mach-ixp4xx/Kconfig                  |  33 +-
 arch/arm/mach-ixp4xx/common.c                 |   1 -
 arch/arm/mach-ixp4xx/fsg-setup.c              |   1 +
 .../mach-ixp4xx/include/mach/ixp4xx-regs.h    |   7 +-
 arch/arm/mach-ixp4xx/ixp4xx-of.c              |   8 +-
 arch/arm/mach-ixp4xx/nas100d-setup.c          |   1 +
 arch/arm/mach-ixp4xx/nslu2-setup.c            |   1 +
 drivers/ata/pata_ixp4xx_cf.c                  |   1 +
 drivers/net/ethernet/xscale/ixp4xx_eth.c      |   1 +
 drivers/pci/controller/Kconfig                |   8 +
 drivers/pci/controller/Makefile               |   1 +
 drivers/pci/controller/pci-ixp4xx.c           | 705 ++++++++++++++++++
 drivers/soc/ixp4xx/ixp4xx-npe.c               |   2 +
 drivers/soc/ixp4xx/ixp4xx-qmgr.c              |   2 +
 18 files changed, 864 insertions(+), 21 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/pci/intel,ixp4xx-pci.yaml
 create mode 100644 drivers/pci/controller/pci-ixp4xx.c