Re: [PATCH] ARM: l2c: prima2: only call l2x0_of_init() on matching nodes

From: Russell King - ARM Linux
Date: Mon Apr 28 2014 - 05:16:39 EST


On Sun, Apr 27, 2014 at 08:27:40PM -0400, Matt Porter wrote:
> l2x0_of_init() is executed unconditionally within the sirfsoc_l2x0_init()
> early initcall. In a multi v7 kernel this causes bcm281xx and bcm21664
> platform to fail boot since they have their own pre l2x0 init sequence
> that is required. Fix this by checking that a matching OF ID is present
> before calling l2x0_of_init().
>
> Reported-by: Kevin Hilman <khilman@xxxxxxxxxx>
> Signed-off-by: Matt Porter <mporter@xxxxxxxxxx>
> ---
> Applies against next-20140424 to fix the issue introduced in
> 50655e6 ARM: l2c: prima2: remove cache size override

Err, this only "fixes" it because it effectively disables the L2 cache
_entirely_ - in the above commit, I kill your private compatible strings.

This doesn't make sense. If the cache is already enabled, then the L2C
code won't try to enable it again.

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