[PATCH] am33xx-clock: configure PLLs based on oscillator frequency

[Sascha Hauer]

On Wed, Apr 17, 2013 at 03:17:11PM +0200, Jan Luebbe wrote:
> Signed-off-by: Jan Luebbe <jlu at pengutronix.de>

This patch deserves a bit more description why it does what it does
and also that it includes no functional change.

> ---
>  arch/arm/mach-omap/include/mach/am33xx-clock.h | 15 +++++----------
>  1 file changed, 5 insertions(+), 10 deletions(-)
> 
> diff --git a/arch/arm/mach-omap/include/mach/am33xx-clock.h b/arch/arm/mach-omap/include/mach/am33xx-clock.h
> index 39c107f..f496756 100644
> --- a/arch/arm/mach-omap/include/mach/am33xx-clock.h
> +++ b/arch/arm/mach-omap/include/mach/am33xx-clock.h
> @@ -31,12 +31,12 @@
>  #define MPUPLL_M_600	600	/* 125 * n */
>  #define MPUPLL_M_720	720	/* 125 * n */
>  
> -#define MPUPLL_N	23	/* (n -1 ) */
> +#define MPUPLL_N	(OSC-1)

Add whitespaces left and right to operators please.


>  #define MPUPLL_M2	1
>  
>  /* Core PLL Fdll = 1 GHZ, */
>  #define COREPLL_M	1000	/* 125 * n */
> -#define COREPLL_N	23	/* (n -1 ) */
> +#define COREPLL_N	(OSC-1)
>  
>  #define COREPLL_M4	10	/* CORE_CLKOUTM4 = 200 MHZ */
>  #define COREPLL_M5	8	/* CORE_CLKOUTM5 = 250 MHZ */
> @@ -48,19 +48,14 @@
>   * For clkout = 192 MHZ, Fdll = 960 MHZ, divider values are given below
>   */
>  #define PERPLL_M	960
> -#define PERPLL_N	23
> +#define PERPLL_N	(OSC-1)
>  #define PERPLL_M2	5
>  
> -/* DDR Freq is 166 MHZ for now*/
> +/* DDR Freq is 266 MHZ for now*/
>  /* Set Fdll = 400 MHZ , Fdll = M * 2 * CLKINP/ N + 1; clkout = Fdll /(2 * M2) */
>  //#if	(CONFIG_AM335X_EVM_IS_13x13 == 1)
> -#if 0
> -#define DDRPLL_M	166	/* M/N + 1 = 25/3 */
> -#else
>  #define DDRPLL_M	266
> -#endif

Please make this a separate patch.

Sascha


-- 
Pengutronix e.K.                           |                             |
Industrial Linux Solutions                 | http://www.pengutronix.de/  |
Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |