Re: [PATCH 3/3] ARM: v7 setup function should invalidate L1 cache

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On Sat, Aug 15, 2015 at 04:32:37AM +0400, Alexander Kochetkov wrote:
> From: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>
> 
> commit 02b4e2756e01c623cc4dbceae4b07be75252db5b upstream.
> 
> All ARMv5 and older CPUs invalidate their caches in the early assembly
> setup function, prior to enabling the MMU.  This is because the L1
> cache should not contain any data relevant to the execution of the
> kernel at this point; all data should have been flushed out to memory.

You also need bac51ad9d14f6baed3730ef53bedc1eb2238563a together with
this, which has a small fix for this patch.

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