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From: Scott Wood <scottwood@freescale•com>
To: Anton Vorontsov <avorontsov@ru•mvista.com>
Cc: linuxppc-dev@ozlabs•org
Subject: Re: [PATCH] [POWERPC] 8xx: timebase frequency should not depend on bus-frequency
Date: Thu, 21 Feb 2008 13:48:23 -0600	[thread overview]
Message-ID: <47BDD587.9060206@freescale.com> (raw)
In-Reply-To: <20080221194508.GA12896@localhost.localdomain>

Anton Vorontsov wrote:
> diff --git a/arch/powerpc/platforms/8xx/m8xx_setup.c b/arch/powerpc/platforms/8xx/m8xx_setup.c
> index 184f998..0d9f75c 100644
> --- a/arch/powerpc/platforms/8xx/m8xx_setup.c
> +++ b/arch/powerpc/platforms/8xx/m8xx_setup.c
> @@ -111,17 +111,12 @@ void __init mpc8xx_calibrate_decr(void)
>  
>  	/* Processor frequency is MHz.
>  	 */
> -	ppc_tb_freq = 50000000;
> -	if (!get_freq("bus-frequency", &ppc_tb_freq)) {
> -		printk(KERN_ERR "WARNING: Estimating decrementer frequency "
> -		                "(not found)\n");
> -	}
> -	ppc_tb_freq /= 16;
>  	ppc_proc_freq = 50000000;
>  	if (!get_freq("clock-frequency", &ppc_proc_freq))
>  		printk(KERN_ERR "WARNING: Estimating processor frequency "
>  		                "(not found)\n");
>  
> +	ppc_tb_freq = ppc_proc_freq / 16;

Shouldn't we just use the timebase-frequency property?

-Scott

  reply	other threads:[~2008-02-21 19:48 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-02-21 19:45 [PATCH] [POWERPC] 8xx: timebase frequency should not depend on bus-frequency Anton Vorontsov
2008-02-21 19:48 ` Scott Wood [this message]
2008-02-21 19:59   ` Anton Vorontsov
2008-02-21 20:06     ` Scott Wood
2008-02-21 21:13       ` Anton Vorontsov
2008-02-21 21:20         ` Scott Wood
2008-02-21 23:41           ` Anton Vorontsov
2008-02-22 13:01             ` Bryan O'Donoghue

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