MPC5200 I2C unstable?

[Kimmo Surakka <kimmo.surakka@oxinst.fi>]

Hi,

I'm using a MPC5200 based board (namely TQM5200) and the 
linuxppc_2_4_devel-2005-10-25-1440 kernel from denx.de. To get the serial 
ports more stable, I've applied the serial port patch by Achim Machura (can 
be found in 
http://marc.theaimsgroup.com/?l=linuxppc-embedded&m=112901824515097&w=2). The 
patch needed small adjustments, but nothing too large -- mostly different 
line numbers.

Also, to get the first I2C interface to work, I've had to change the file 
drivers/i2c/i2c-tqm5200.c followingly:

-#define MPC5xxx_I2C1_ENABLE    0       /* Disable  */
+#define MPC5xxx_I2C1_ENABLE    1       /* Enable   */

The code compiles OK, but the I2C bus gets stuck after a short while. Has 
anyone else experienced something similar? I tried to Google for information 
but didn't find anything relevant. Maybe I just didn't know the right 
keywords to search for?

Thanks in advance,

Kimmo Surakka

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