[PATCH][RFC][v2] pci: fsl: rework PCIe driver compatible with Layerscape

[Scott Wood]

On Wed, 2013-08-28 at 18:42 +0800, Minghuan Lian wrote:
> The Freescale's Layerscape series processors will use ARM cores.
> The LS1's PCIe controllers is the same as T4240's. So it's better
> the PCIe controller driver can support PowerPC and ARM
> simultaneously. This patch is for this purpose. It derives
> the common functions from arch/powerpc/sysdev/fsl_pci.c to
> drivers/pci/host/pcie-fsl.c and leaves several platform-dependent
> functions which should be implemented in platform files.
> 
> Signed-off-by: Minghuan Lian <Minghuan.Lian at freescale.com>
> ---
> Based on upstream master 3.11-rc7
> The function has been tested on MPC8315ERDB MPC8572DS P5020DS P3041DS
> and T4240QDS boards 
> 
> Change log:
> v2:
> 1. Use 'pci' instead of 'pcie' in new file name and file contents. 
> 2. Use iowrite32be()/iowrite32() instead of out_be32/le32()
> 3. Fix ppc_md.dma_set_mask setting
> 4. Synchronizes host->first_busno and pci->first_busno.
> 5. Fix PCI IO space settings
> 6. Some small changes according to Scott's comments.

Could you please split this into two patches, where one moves the code,
and the other makes changes to it?

-Scott