[PATCH V3 1/5] powerpc/fsl-pci: Unify pci/pcie initialization code

[Kumar Gala]

On Jul 26, 2012, at 7:30 AM, Jia Hongtao wrote:

> We unified the Freescale pci/pcie initialization by changing the fsl_pci
> to a platform driver. In previous PCI code architecture the initialization
> routine is called at board_setup_arch stage. Now the initialization is done
> in probe function which is architectural better. Also It's convenient for
> adding PM support for PCI controller in later patch.
> 
> One issue introduced by this architecture is the timing of swiotlb_init.
> During PCI initialization the need of swiotlb is determined and this should
> be done before swiotlb_init. So a new function to determine swiotlb by
> parsing pci ranges is made. This function is called at board_setup_arch
> stage which is earlier than swiotlb_init.
> 
> Signed-off-by: Jia Hongtao <B38951 at freescale.com>
> Signed-off-by: Li Yang <leoli at freescale.com>
> ---
> Changed for V3:
> - Rebase the patch set on the latest tree
> - merge PCI unify and swiotlb patch into one
> 
> arch/powerpc/sysdev/fsl_pci.c |  155 ++++++++++++++++++++++++++++++++---------
> arch/powerpc/sysdev/fsl_pci.h |    9 +--
> 2 files changed, 125 insertions(+), 39 deletions(-)

I'd like the SWIOTLB refactoring as a separate patch.  Additionally, the order of patches should be as follows:

1. refactor PCI node parsing code
2. add pci_determine_swiotlb (should rename to fsl_pci_determine_swiotlb)
3. Determine primary bus by looking for ISA node
4. convert all boards over to fsl_pci_init
5. convert fsl pci to platform driver (edac and other fixes should be merged in here)
6. PM support

- k