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| author | Arnd Bergmann <arnd@arndb.de> | 2012-08-13 16:56:29 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2012-08-13 16:56:29 +0200 |
| commit | 19ec6caca2da706f11646249ba280177fec359fa (patch) | |
| tree | 6064421bc4924e7debdc8576a187cbdec4b8c352 /Documentation/arm | |
| parent | 0d7614f09c1ebdbaa1599a5aba7593f147bf96ee (diff) | |
| parent | dd9bf78040fa0da4cecc228e1682b9682b8cb180 (diff) | |
| download | linux-19ec6caca2da706f11646249ba280177fec359fa.tar.bz2 | |
Merge branch 'cleanup/io-pci' into next/cleanups
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: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'Documentation/arm')
| -rw-r--r-- | Documentation/arm/memory.txt | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/Documentation/arm/memory.txt b/Documentation/arm/memory.txt index 208a2d465b92..4bfb9ffbdbc1 100644 --- a/Documentation/arm/memory.txt +++ b/Documentation/arm/memory.txt @@ -51,6 +51,9 @@ ffc00000 ffefffff DMA memory mapping region. Memory returned ff000000 ffbfffff Reserved for future expansion of DMA mapping region. +fee00000 feffffff Mapping of PCI I/O space. This is a static + mapping within the vmalloc space. + VMALLOC_START VMALLOC_END-1 vmalloc() / ioremap() space. Memory returned by vmalloc/ioremap will be dynamically placed in this region. |