From: Wolfgang Denk <wd@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] [PATCH] Fix calculation of I2C clock for some 86xx chips
Date: Wed, 30 Apr 2008 22:52:52 +0200 [thread overview]
Message-ID: <20080430205252.5998424681@gemini.denx.de> (raw)
In-Reply-To: Your message of "Fri, 04 Apr 2008 11:16:11 CDT." <1207325771-1374-1-git-send-email-timur@freescale.com>
In message <1207325771-1374-1-git-send-email-timur@freescale.com> you wrote:
> Some 86xx chips use CCB as the base clock for the I2C, and others used CCB/2.
> There is no pattern that can be used to determine which chips use which
> frequency, so the only way to determine is to look up the actual SOC
> designation and use the right value for that SOC.
>
> Signed-off-by: Timur Tabi <timur@freescale.com>
> ---
>
> Yes, this is ugly and stupid, but the only alternative is to update each
> board configuration file with another CONFIG_ option. And yes, this does
> mean that as new 86xx variants are announced, cpu/mpc86xx/speed.c may need
> to be updated.
>
> cpu/mpc86xx/speed.c | 14 +++++++++++++-
> 1 files changed, 13 insertions(+), 1 deletions(-)
Applied, thanks.
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
An expert is a person who avoids the small errors while sweeping on
to the grand fallacy.
prev parent reply other threads:[~2008-04-30 20:52 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-04-04 16:16 [U-Boot-Users] [PATCH] Fix calculation of I2C clock for some 86xx chips Timur Tabi
2008-04-18 4:14 ` Wolfgang Denk
2008-04-21 17:51 ` Jon Loeliger
2008-04-30 19:54 ` Timur Tabi
2008-04-30 20:53 ` Wolfgang Denk
2008-04-30 20:52 ` Wolfgang Denk [this message]
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