linux-kernel - Re: [PATCH v2 4/5] ARM: allow errata and XIP options to be enabled without ARCH_MULTIPLATFORM

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Date:	Tue, 28 Oct 2014 14:02:31 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Xia Kaixu <kaixu.xia@...aro.org>
Cc:	arm@...nel.org, arnd@...db.de, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v2 4/5] ARM: allow errata and XIP options to be enabled
 without ARCH_MULTIPLATFORM_STRICT

On Tue, Oct 28, 2014 at 09:31:34PM +0800, Xia Kaixu wrote:
> With the ARCH_MULTIPLATFORM_STRICT option, it becomes much easier to
> enable the ERRATA options when we know at configuration time that we
> don't care about the generic case. The previous configuration makes
> XIP_KERNEL option fundamentally non-MULTIPLATFORM, but it's still
> valid to select it when building for !ARCH_MULTIPLATFORM_STRICT and
> selecting only the one machine that you want to run on.

XIP_KERNEL isn't supported on anything past ARMv5 though.

I don't like the case for errata though - we want these errata to be
handled by the board firmware, not by the kernel, and we don't want
to make it any easier for people to ignore that fact.

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