From: Heiko Schocher <hs@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2 13/16] I2C: adding new "i2c bus" Command to the I2C Subsystem.
Date: Thu, 16 Oct 2008 17:06:28 +0200 [thread overview]
Message-ID: <48F75874.1030608@denx.de> (raw)
In-Reply-To: <48F61B3F.6090308@gmail.com>
Hello Ben,
Ben Warren wrote:
> Heiko Schocher wrote:
>> With this Command it is possible to add new I2C Busses,
>> which are behind 1 .. n I2C Muxes. Details see README.
>>
> While this is pretty cool, I'm curious what circumstances lead to
> needing to add I2C buses at run-time via command line. Presumably you
> have a real business need for this in a bootloader?
Yes. This boardmanufacturer has a lot of hardwareversions with
different I2C bus wirings, but has for example always one EEProm
with configdata. Now, he can use one u-boot image for all this
boards and has just to define in the environment, in which way
he can reach this EEprom.
bye
Heiko
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
next prev parent reply other threads:[~2008-10-16 15:06 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-10-15 7:39 [U-Boot] [PATCH v2 13/16] I2C: adding new "i2c bus" Command to the I2C Subsystem Heiko Schocher
2008-10-15 16:33 ` Ben Warren
2008-10-16 15:06 ` Heiko Schocher [this message]
2008-10-16 17:06 ` Ben Warren
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