[U-Boot-Users] MPC8343 I2C problem

Timur Tabi timur at freescale.com
Mon Apr 23 16:46:56 CEST 2007

Monstr at seznam.cz wrote:
> HI,
> I am trying to port U-BOOT to board with MPC8343 and I have problem with reading data from I2C. Iprobe command  detects EEPROM memory  but after imd 50 0 20 a read only 0xff values. In EEPROM memory is stored configuration words. And configuration word is strored properly because after unplug BDI board starts fine and we can reading memory via OS. I tryied to change SPEED too.

On 83xx boards, CFG_I2C_SPEED is not used.  This is a known bug that I intend to fix one 
day.  The actual speed value that is programmed into the controller is hard-coded and is 
somewhat conservative.  See function i2c_init().

Timur Tabi
Linux Kernel Developer @ Freescale

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