linux-kernel - Re: [PATCH 2/6] arm: mach-socfpga: enable pci support

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Date:	Tue, 28 Jul 2015 08:26:27 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Ley Foon Tan <lftan@...era.com>
Cc:	Bjorn Helgaas <bhelgaas@...gle.com>,
	Russell King <linux@....linux.org.uk>,
	Arnd Bergmann <arnd@...db.de>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Ley Foon Tan <lftan.linux@...il.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH 2/6] arm: mach-socfpga: enable pci support

On Tue, Jul 28, 2015 at 5:45 AM, Ley Foon Tan <lftan@...era.com> wrote:
> Enable CONFIG_ARCH_SUPPORT_MSI and CONFIG_PCI in SOCFPGA platform.
>
> Signed-off-by: Ley Foon Tan <lftan@...era.com>
> ---
>  arch/arm/mach-socfpga/Kconfig | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/arch/arm/mach-socfpga/Kconfig b/arch/arm/mach-socfpga/Kconfig
> index 90efdeb..7ff4576 100644
> --- a/arch/arm/mach-socfpga/Kconfig
> +++ b/arch/arm/mach-socfpga/Kconfig
> @@ -1,6 +1,7 @@
>  menuconfig ARCH_SOCFPGA
>         bool "Altera SOCFPGA family" if ARCH_MULTI_V7
>         select ARCH_SUPPORTS_BIG_ENDIAN
> +       select ARCH_SUPPORTS_MSI

This doesn't exist in mainline having been removed in 3.12.

>         select ARM_AMBA
>         select ARM_GIC
>         select CACHE_L2X0
> @@ -9,6 +10,7 @@ menuconfig ARCH_SOCFPGA
>         select HAVE_ARM_SCU
>         select HAVE_ARM_TWD if SMP
>         select MFD_SYSCON
> +       select PCI

This should not be selected by the platform, but be user selectable
unless perhaps you require PCI to boot.

Rob
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