[PATCH] CS4270 node is misplaced in the MPC8610 device tree

Timur Tabi timur at freescale.com
Tue May 20 05:20:50 EST 2008

Anton Vorontsov wrote:

> Hm... this should be controlled by the PIXIS' BRDCFG0's I2CSPAN and
> SERSEL bits:

Since these pins should not have changed from one kernel version to another, it
doesn't explain how my device "jumped" from I2C2 to I2C1.  I'm debugging this now.

> 1: I2C1 and I2C2 are bridged. MPC8610 SPI functions may be used. All I2C
>    devices may be accessed via I2C1 controller and/or I2C2 (I2C2 depends on
>    SERSEL setting).

I believe this is wrong.  The chip documentation says that the pin controlled by
I2CSPAN selects which of the two inputs to use.  It does not bridge.

Timur Tabi
Linux kernel developer at Freescale

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