From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Warren Date: Thu, 16 Oct 2008 10:06:02 -0700 Subject: [U-Boot] [PATCH v2 13/16] I2C: adding new "i2c bus" Command to the I2C Subsystem. In-Reply-To: <48F75874.1030608@denx.de> References: <48F59E43.7030602@denx.de> <48F61B3F.6090308@gmail.com> <48F75874.1030608@denx.de> Message-ID: <48F7747A.30902@gmail.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Heiko, Heiko Schocher wrote: > 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 > Interesting. Thank you. regards, Ben