Hi Steven,

Steven Scholz wrote on :

Martin,

...

A clock rate > 180 MHz could be problematic. According errata 42 (AC Characteristics: PLL Frequency Limitation), in AT91RM9200 errata sheet (doc6015) the PLL is limited to 180 MHz. We already had problems with this bug (with about 10%-15% of the CPUs). After configuring the PLL for 179 MHz no errors occour any mor (before we used 207 MHz).

Which errors and problems did you encounter?

The Linux kernel (2.4.27 linuxarm tree from Denx) did not run stable on the affected boards. We see sporadic failures and core dumps.

Regards, Martin