[RFC PATCH 4/6] arm: cpuinfo: Cortex-A9 dirty hack

[Sascha Hauer]

On Thu, Sep 29, 2011 at 06:04:34PM +0400, Antony Pavlov wrote:
> Signed-off-by: Antony Pavlov <antonynpavlov at gmail.com>
> ---
>  arch/arm/cpu/cpuinfo.c |   10 +++++++++-
>  1 files changed, 9 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/cpu/cpuinfo.c b/arch/arm/cpu/cpuinfo.c
> index e19b8de..25d2c3f 100644
> --- a/arch/arm/cpu/cpuinfo.c
> +++ b/arch/arm/cpu/cpuinfo.c
> @@ -101,7 +101,15 @@ static int do_cpuinfo(struct command *cmdtp, int argc, char *argv[])
>  			if (arch > 0 && arch < 8)
>  				architecture = post_arm7_archs[arch - 1];
>  			else
> -				architecture = "Unknown";
> +				/*
> +				 * see Cortex-A9 Technical Reference Manual:
> +				 *  Main ID Register value fixed to 0x411fc090
> +				 */
> +				if (mainid == 0x411fc090) {
> +					architecture = "Cortex-A9";
> +				} else {
> +					architecture = "Unknown";
> +				}

For Cortex-A8 it seems to be 0x412fc085. Aybe you can have a look at
arch/arm/kernel/setup.c in the kernel to see how it's done there. Would
be good to catch the Cortex-A8 aswell with this patch.

Sascha


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