From: Anton Vorontsov <avorontsov@ru.mvista.com>
To: Scott Wood <scottwood@freescale.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>, linuxppc-dev@ozlabs.org
Subject: Re: [PATCH] [POWERPC][RFC] MPC8360E-RDK: Device tree and board file
Date: Wed, 19 Dec 2007 19:36:02 +0300 [thread overview]
Message-ID: <20071219163602.GA21780@localhost.localdomain> (raw)
In-Reply-To: <20071219161551.GA20238@ld0162-tx32.am.freescale.net>
On Wed, Dec 19, 2007 at 10:15:52AM -0600, Scott Wood wrote:
> On Wed, Dec 19, 2007 at 04:05:59PM +0300, Anton Vorontsov wrote:
> > No, we can't drop it. We can replace it by clock-frequency, but
> > not just drop it, because bus frequency used by at least one driver --
> > spi_mpc83xx, to calculate proper clocks prescaling value.
>
> Hmm... maybe it should be using the brg frequency instead? I'll look at
> the documentation to see what the actual clock it's looking for is.
It says "QE clk / 2" for MPC8360 and MPC8323. BRG clk for MPC8555 (cpm2).
"system clock" (SOC) for MPC8349.
I just looked into u-boot, for mpc83xx: brgclk = qe_clk / 2, so we can
use it.
Thanks!
--
Anton Vorontsov
email: cbou@mail.ru
backup email: ya-cbou@yandex.ru
irc://irc.freenode.net/bd2
next prev parent reply other threads:[~2007-12-19 16:33 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-10 20:29 [PATCH] [POWERPC][RFC] MPC8360E-RDK: Device tree and board file Anton Vorontsov
2007-12-11 0:30 ` Stephen Rothwell
2007-12-11 17:19 ` Anton Vorontsov
2007-12-11 18:42 ` Kumar Gala
2007-12-15 16:23 ` Anton Vorontsov
2007-12-17 5:14 ` David Gibson
2007-12-17 17:03 ` Scott Wood
2007-12-17 17:10 ` Kim Phillips
2007-12-17 17:20 ` Scott Wood
2007-12-17 17:42 ` Kim Phillips
2007-12-17 18:26 ` Vitaly Bordug
2007-12-17 18:48 ` Scott Wood
2007-12-17 20:55 ` Vitaly Bordug
2007-12-18 3:51 ` David Gibson
2007-12-18 16:16 ` Scott Wood
2007-12-18 16:51 ` Anton Vorontsov
2007-12-18 22:39 ` David Gibson
2007-12-19 13:05 ` Anton Vorontsov
2007-12-19 16:15 ` Scott Wood
2007-12-19 16:36 ` Anton Vorontsov [this message]
2007-12-19 20:59 ` Anton Vorontsov
2007-12-18 15:53 ` Kumar Gala
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