Hi Olivier,

thanks for the inputs. Yes agreed, it is specific to chipset/SoC not Architecture specific.

thanks Ganapat

On Thu, May 1, 2014 at 3:25 PM, Olivier Martin olivier.martin@arm.comwrote:

Hi Ganapat,

You will need to implement the UEFI protocols:

•      EFI_PCI_HOST_BRIDGE_RESOURCE_ALLOCATION_PROTOCOL
  
  

•      EFI_PCI_ROOT_BRIDGE_IO_PROTOCOL
  
  
  
  

Your driver will be more tied to your PCI Root Complex than the Aarch64 architecture itself.

PcAtChipsetPkg/PciHostBridgeDxe might be a good candidate to start with. But again, your driver will be chipset specific, not architecture specific.

Olivier

*From:* Ganapatrao Kulkarni [mailto:gpkulkarni@gmail.com] *Sent:* 01 May 2014 10:28 *To:* linaro-uefi@lists.linaro.org; Olivier Martin *Subject:* PCI driver support on ARM64 platforms.

Hi All,

We want to understand how to enable/add PCI support for ARM64 based platforms in UEFI.

Any suggestion on where to start from? which driver needs to be referred?

Can we use PcAtChipsetPkg/PciHostBridgeDxe to start with?

what are the changes required to port PcAtChipsetPkg/PciHostBridgeDxe to support ARM64 platforms?

I appreciate your advise on this!

thanks in advance

Ganapat