Thanks Ben.
I fixed my problem, now I am able to scan both the buses dynamically in the run time.
I change cpu/mpc5xxx/i2c.c file according to the file fsl_i2c.c driver, based on your idea.
Thank you, once again.
Regards, Yasotha Balan R
-----Original Message----- From: Ben Warren [mailto:bwarren@qstreams.com] Sent: Tuesday, October 23, 2007 7:55 PM To: Yasothabalan Ramaswamy-TLS,Chennai Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] I2C scanning
Yasothabalan Ramaswamy-TLS,Chennai wrote:
Thanks Ben.
Can you please help how to proceed with fsl_i2c.c driver file? I have defined CFG_I2C_OFFSET 3D00 & CFG_I2C2_OFFSET 3D40 When I give command i2c dev 0 I am getting the response as => i2c dev 0 Setting bus to 0
But when I give command as follows, I get nothing
=> i2c probe
Can you please help me?
Regards, Yasotha Balan R
Have you done a register-by-register comparison of the MPC5200B's I2C controller to verify that it's compatible with this driver? Download the
MPC8349's datasheet from Freescale's website to compare. As I mentioned before, I have no idea if it is or not.
On the one hand, chip companies tend to re-use control blocks across multiple product lines, but on the other, the MPC5200-based boards in the U-boot tree use the driver in cpu/mpc5xxx. If the registers don't match, the fsl_i2c.c driver won't work.
If the driver is compatible, make sure you have the right CONFIGs in your header file (CONFIG_HARD_I2C, CONFIG_FSL_I2C etc.), then debug using the best tools for the job (my preferred order: printf, oscilloscope, BDI-2000/gdb).
If the driver isn't compatible, you can do the U-boot community a service by updating the cpu/mpc5xxx/i2c.c driver to handle multiple buses.
regards, Ben
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