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From: Arnd Bergmann <arnd@arndb.de>
To: Catalin Marinas <catalin.marinas@arm.com>
Subject: Re: [Linaro-acpi] [RFC part1 PATCH 1/7] ACPI: Make ACPI core running without PCI on ARM64
Date: Mon, 9 Dec 2013 18:20:22 +0100
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On Monday 09 December 2013, Catalin Marinas wrote:
> CONFIG_PCI does not exist on arm64 yet (we have some internal patches
> but may not be ready to be posted before the holidays; they try to share
> code with other archs, so more discussions before merging). We could add
> CONFIG_PCI and some dummy functions on arm64 for development (not to be
> upstreamed) or Hanjun could continue to use the current patch before we
> get PCI working. In the order of priorities, we'll have to merge PCI
> before ACPI anyway.

Well, lack of PCI support on ARM64 is a much better reason for accepting
the patch than potential use on non-server platforms of course.

What is the status of the PCI work though? I suspect it won't be all
that hard to add minimal PCI support for a simple mmconfig plus
fixed I/O space based host of the kind that qemu can easily provide.

The hard part that we want to share code with other architectures is
supporting pluggable host controllers, and I think we can defer that
a bit.

	Arnd