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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Antony Pavlov <antonynpavlov@gmail.com>
Cc: barebox@lists.infradead.org
Subject: Re: [RFC PATCH 4/6] arm: cpuinfo: Cortex-A9 dirty hack
Date: Thu, 6 Oct 2011 13:04:11 +0200	[thread overview]
Message-ID: <20111006110410.GU31404@pengutronix.de> (raw)
In-Reply-To: <1317305076-3334-5-git-send-email-antonynpavlov@gmail.com>

On Thu, Sep 29, 2011 at 06:04:34PM +0400, Antony Pavlov wrote:
> Signed-off-by: Antony Pavlov <antonynpavlov@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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  reply	other threads:[~2011-10-06 11:04 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-29 14:04 [RFC PATCH 0/6] ARM: initial Tegra support Antony Pavlov
2011-09-29 14:04 ` [RFC PATCH 1/6] " Antony Pavlov
2011-09-29 14:04 ` [RFC PATCH 2/6] dirty hack, fixme: disable mmu_cache_flush in arch/arm/cpu/start.c for Tegra Antony Pavlov
2011-10-06 11:07   ` Sascha Hauer
2011-09-29 14:04 ` [RFC PATCH 3/6] ARM: Tegra: add Toshiba AC100 support Antony Pavlov
2011-09-29 14:04 ` [RFC PATCH 4/6] arm: cpuinfo: Cortex-A9 dirty hack Antony Pavlov
2011-10-06 11:04   ` Sascha Hauer [this message]
2011-10-06 18:32     ` Antony Pavlov
2011-09-29 14:04 ` [RFC PATCH 5/6] toshiba-ac100: add USB host support Antony Pavlov
2011-10-06 11:05   ` Sascha Hauer
2011-09-29 14:04 ` [RFC PATCH 6/6] toshiba-ac100_defconfig update: enable USB-related stuff Antony Pavlov
2011-10-06 11:06   ` Sascha Hauer

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