[PATCH v2 3/9] ARM: clps711x: Adds config option for CPU PLL multiplier

[Sascha Hauer]

On Wed, Feb 13, 2013 at 03:41:38PM +0400, Alexander Shiyan wrote:
> 
> Signed-off-by: Alexander Shiyan <shc_work at mail.ru>
> ---
>  arch/arm/boards/clep7212/lowlevel.c            |    6 +++++-
>  arch/arm/mach-clps711x/Kconfig                 |   13 +++++++++++++
>  arch/arm/mach-clps711x/include/mach/clps711x.h |    2 +-
>  arch/arm/mach-clps711x/lowlevel.c              |    7 +++++--
>  4 files changed, 24 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/boards/clep7212/lowlevel.c b/arch/arm/boards/clep7212/lowlevel.c
> index b7d6d1d..fcf8285 100644
> --- a/arch/arm/boards/clep7212/lowlevel.c
> +++ b/arch/arm/boards/clep7212/lowlevel.c
> @@ -14,9 +14,13 @@
>  
>  #include <mach/clps711x.h>
>  
> +#if (CONFIG_CLPS711X_CPU_PLL_MULT < 20) || (CONFIG_CLPS711X_CPU_PLL_MULT > 50)
> +# error "CPU PLL multiplier out of range"
> +#endif
> +
>  void __naked __bare_init barebox_arm_reset_vector(void)
>  {
>  	arm_cpu_lowlevel_init();
>  
> -	clps711x_barebox_entry();
> +	clps711x_barebox_entry(CONFIG_CLPS711X_CPU_PLL_MULT);

I don't quite understand why you want to have this configurable. I mean
this is a single board only, why not simply run it with the maximum
allowed frequency? Or does this board come with multiple SoCs for which
different maximum values exist?

Sascha


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