From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marek.vasut@gmail.com>
Date: Mon, 23 Jan 2012 05:21:41 +0100
Subject: [U-Boot] [PATCH] mx28: Show CPU frequency
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References: <1327286288-2265-1-git-send-email-festevam@gmail.com>
Message-ID: <201201230521.42046.marek.vasut@gmail.com>
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> Showing CPU frequency during boot is useful information.
> 
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
> ---
>  arch/arm/cpu/arm926ejs/mx28/mx28.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
> 
> diff --git a/arch/arm/cpu/arm926ejs/mx28/mx28.c
> b/arch/arm/cpu/arm926ejs/mx28/mx28.c index da90360..683777f 100644
> --- a/arch/arm/cpu/arm926ejs/mx28/mx28.c
> +++ b/arch/arm/cpu/arm926ejs/mx28/mx28.c
> @@ -169,7 +169,8 @@ int arch_cpu_init(void)
>  #if defined(CONFIG_DISPLAY_CPUINFO)
>  int print_cpuinfo(void)
>  {
> -	printf("Freescale i.MX28 family\n");
> +	printf("Freescale i.MX28 family at %d MHz\n",
> +			mxc_get_clock(MXC_ARM_CLK) / 1000000);
>  	return 0;
>  }
>  #endif

Just put it amongst the other frequencies displayed by the clock command.