TQM5200 I2C Second bus

Jani.Sarkijarvi at elektrobit.com Jani.Sarkijarvi at elektrobit.com
Wed Sep 24 00:39:05 EST 2008

It is very possible that, setting are not right. I found from mpc5200 manual this register: (MBAR + 0x0B00, GPS, GPIO Standard registers). Where should be right place to modify those register?


Jani Särkijärvi

-----Original Message-----
From: Juergen Beisert [mailto:jbe at pengutronix.de] 
Sent: 19 September 2008 16:58
To: linuxppc-embedded at ozlabs.org
Cc: Särkijärvi, Jani
Subject: Re: TQM5200 I2C Second bus

On Freitag, 19. September 2008, Jani.Sarkijarvi at elektrobit.com wrote:
> Hi,
> I'm using TQM5200 (MPC5200) chip with linux-2.6-denx. Problem is to 
> get second I2c bus to work (/dev/i2c-0) . /dev/i2c-1 seems to be 
> internal bus and I can read ex. lm75 temperature sensor, also I can 
> see traffic in oscilloscope (only error is "I2C: No RXAK", but it 
> seems to be working). My .dts setup is:

Is your "GPS Port Configuration Register" setting correct?


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