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Author SHA1 Message Date
Michael D Kinney 4059386c70 ArmPkg: Replace BSD License with BSD+Patent License 
https://bugzilla.tianocore.org/show_bug.cgi?id=1373

Replace BSD 2-Clause License with BSD+Patent License.  This change is
based on the following emails:

  https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html
  https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html

RFCs with detailed process for the license change:

  V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html
  V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html
  V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html

Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
 2019-04-09 09:10:21 -07:00
Ard Biesheuvel 3dece14502 ArmPkg: implement CpuIo2 protocol driver specific for PCI 
The CpuIo2 protocol is required by the generic PciHostBridgeDxe driver,
which relies on it to back its own I/O and MMIO operations.

Since ARM has no native I/O port equivalent, such accesses can only
originate from PCI drivers, and the PCI I/O space is translated to MMIO
in this case.

So we can implement this protocol using MMIO operations only, and take
the PCI I/O translation offset into account when performing I/O port
accesses.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
 2016-04-29 18:04:25 +02:00