Re: [PATCH] Fixed processing of bootarg 'mpurate'

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On Mon, 10 Aug 2009, Sanjeev Premi wrote:

> The argument 'mpurate' had no effect on the MPU
> frequency. This patch fixes the same.

Thanks, I'll plan to squeeze this into the .32 merge window, with a couple 
of minor changes described below.  Please review the changes:

> 
> Signed-off-by: Sanjeev Premi <premi@xxxxxx>
> ---
>  arch/arm/mach-omap2/clock34xx.c |   14 ++++++++++----
>  1 files changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
> index 045da92..0c62aad 100644
> --- a/arch/arm/mach-omap2/clock34xx.c
> +++ b/arch/arm/mach-omap2/clock34xx.c
> @@ -27,6 +27,7 @@
>  #include <linux/limits.h>
>  #include <linux/bitops.h>
>  
> +#include <mach/cpu.h>
>  #include <mach/clock.h>
>  #include <mach/sram.h>
>  #include <asm/div64.h>
> @@ -948,13 +949,18 @@ static int __init omap2_clk_arch_init(void)
>  	if (clk_set_rate(&virt_prcm_set, mpurate))
>  		printk(KERN_ERR "Could not find matching MPU rate\n");
>  #endif

The previous four lines (including the three above) have been removed from 
clock34xx.c.

> +	if (clk_set_rate(&dpll1_ck, mpurate))
> +		printk(KERN_ERR "*** Unable to set MPU rate\n");
> +	omap3_dpll_recalc(&dpll1_ck);

I dropped the omap3_dpll_recalc(&dpll1_ck); since the following 
recalculate_root_clocks() should handle this.

>  	recalculate_root_clocks();
>  
> -	printk(KERN_INFO "Switched to new clocking rate (Crystal/DPLL3/MPU): "
> +	printk(KERN_INFO "Switched to new clocking rate (Crystal/Core/MPU): "
>  	       "%ld.%01ld/%ld/%ld MHz\n",
> -	       (osc_sys_ck.rate / 1000000), (osc_sys_ck.rate / 100000) % 10,
> -	       (core_ck.rate / 1000000), (dpll1_fck.rate / 1000000)) ;
> +	       (osc_sys_ck.rate / 1000000), ((osc_sys_ck.rate / 100000) % 10),
> +	       (core_ck.rate / 1000000), (arm_fck.rate / 1000000)) ;
> +
> +	calibrate_delay();
>  
>  	return 0;
>  }
> @@ -1013,7 +1019,7 @@ int __init omap2_clk_init(void)
>  
>  	recalculate_root_clocks();
>  
> -	printk(KERN_INFO "Clocking rate (Crystal/DPLL/ARM core): "
> +	printk(KERN_INFO "Clocking rate (Crystal/Core/MPU): "
>  	       "%ld.%01ld/%ld/%ld MHz\n",
>  	       (osc_sys_ck.rate / 1000000), (osc_sys_ck.rate / 100000) % 10,
>  	       (core_ck.rate / 1000000), (arm_fck.rate / 1000000));
> -- 
> 1.6.2.2
> 


- Paul
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