[U-Boot-Users] Problems with MPC8xx I2C (RTC)

Steven Scholz steven.scholz at imc-berlin.de
Fri Apr 11 14:44:51 CEST 2003

I wrote:

> I am using u-boot-0.3.0, linuxppc-2.4.20 and a DS1338 I2C RTC with 
> MPC8xx CPM I2C (CONFIG_HARD_I2C and i2c-algo-8xx).
> To avoid the discribed I2C edge condition I changed u-boot form HARD to 
> SOFT_I2C. Now when booting linux I get:
> ...

I just cut & pasted the code from i2c-rpc.c. Apparently the lines

/* Check for and use a microcode relocation patch.        */
if ((data->reloc = data->iip->iic_rpbase))
	data->iip = (iic_t *)&cp->cp_dpmem[data->iip->iic_rpbase];

caused the problem! Since I don't use the I added a #ifdef 
USE_IIC_PATCH around this line just like DENX did in their i2c-r360.c.

Now everything seems to be fine again! :o)

So sorry for the noise!

But again:

What do I need the UCODE_PATCH for?



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