[PATCH 1/2] ARM: socfpga: Permit overriding the default timer frequency

[Simon Goldschmidt]

Am 15.02.2020 um 15:02 schrieb Marek Vasut:
> The default timer rate may be different than 25 MHz, permit overriding
> the default rate in board configuration file. Ultimatelly, this should
> be properly handled by a clock driver, however that is not available
> on Gen5 yet.

Sigh, yes, I still haven't found the time to fight those size problems I
have... :-(

> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Ley Foon Tan <ley.foon.tan at intel.com>
> Cc: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
> ---
>  include/configs/socfpga_common.h | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/include/configs/socfpga_common.h b/include/configs/socfpga_common.h
> index 8d10469e7c..8c5dcfa57c 100644
> --- a/include/configs/socfpga_common.h
> +++ b/include/configs/socfpga_common.h
> @@ -98,8 +98,10 @@

Just above this line, there's this comment: "This timer uses eosc1,
whose clock frequency is fixed at any condition".

While I'm ok with the change below, it does look a bit funny to make
this overriable if it's "fixed at any condition". Could you elaborate on
this? Do we need to change the comment?

Regards,
Simon

>  #define CONFIG_SYS_TIMERBASE		SOCFPGA_OSC1TIMER0_ADDRESS
>  #define CONFIG_SYS_TIMER_COUNTS_DOWN
>  #define CONFIG_SYS_TIMER_COUNTER	(CONFIG_SYS_TIMERBASE + 0x4)
> +#ifndef CONFIG_SYS_TIMER_RATE
>  #define CONFIG_SYS_TIMER_RATE		25000000
>  #endif
> +#endif
>  
>  /*
>   * L4 Watchdog
>