• Arnd Bergmann's avatar
    Merge branch 'cleanup/io-pci' into next/cleanups · 19ec6cac
    Arnd Bergmann authored
    From Rob Herring <robherring2@gmail.com>:
    
    This is the 2nd part of mach/io.h removals. This series removes io.h on
    platforms with PCI by creating a fixed virtual I/O mapping and a common
    __io() macro.
    
    This version has changed a bit to accommodate Tegra converting its PCIe
    host to a platform driver. Now the virtual space is only reserved during
    early boot before .map_io() is called. The mapping is not created until
    calling pci_ioremap_io which can be done at any point after vmalloc is
    initialized.
    
    I've gone back to fixed 64K windows for each PCI bus. This allows
    removing all the i/o resource setup from the individually platforms and
    placing it within the common ARM PCI code.
    
    I've only tested versatilepb under qemu (with the model hacked up to
    actually enable i/o space), so any testing is appreciated. iop3xx and
    mv78xx0 have some risk of breaking as the PCI bus addresses are moved
    to 0 from matching the cpu host bus addesss.
    
    * cleanup/io-pci:
      ARM: iop3xx: use fixed PCI i/o mapping
      ARM: mv78xx0: use fixed pci i/o mapping
      ARM: iop13xx: use fixed PCI i/o mapping
      iop13xx: use more regular PCI I/O space handling
      ARM: orion5x: use fixed PCI i/o mapping
      ARM: kirkwood: use fixed PCI i/o mapping
      ARM: dove: use fixed PCI i/o mapping
      ARM: footbridge: use fixed PCI i/o mapping
      ARM: shark: use fixed PCI i/o mapping
      ARM: integrator: remove trailing whitespace on pci_v3.c
      ARM: integrator: use fixed PCI i/o mapping
      ARM: tegra: use fixed PCI i/o mapping
      ARM: versatile: use fixed PCI i/o mapping
      ARM: move PCI i/o resource setup into common code
      ARM: Add fixed PCI i/o mapping
      i2c: iop3xx: use standard gpiolib functions
      i2c: iop3xx: clean-up trailing whitespace
    Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
    19ec6cac
pcie.c 22.5 KB