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

From: Felipe Balbi
Date: Mon Apr 28 2014 - 10:30:45 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
>
> arch/arm/mach-prima2/l2x0.c | 16 +++++++++++++++-
> 1 file changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/arch/arm/mach-prima2/l2x0.c b/arch/arm/mach-prima2/l2x0.c
> index 09f68f0..1c2ed15 100644
> --- a/arch/arm/mach-prima2/l2x0.c
> +++ b/arch/arm/mach-prima2/l2x0.c
> @@ -8,10 +8,24 @@
>
> #include <linux/init.h>
> #include <linux/kernel.h>
> +#include <linux/of.h>
> #include <asm/hardware/cache-l2x0.h>
>
> +static const struct of_device_id sirf_l2x0_ids[] __initconst = {
> + { .compatible = "sirf,prima2-pl310-cache" },
> + { .compatible = "sirf,marco-pl310-cache" },

that same commit removed these two from DTS, did you test with old DTS,
btw any chance ?

--
balbi

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