PLB_DDR2 (plb_ddr2_v1_00_a, plb_ddr2_v1_01_a) contains corner cases in the calibration logic causing data read from the memory get corrupted or it hangs the processor. Also, there is an issue with the write data path FIFO empty flag.
Refer to "Change Log" for additional information.
This patch fixes the corner cases in the calibration logic and the issue with the write data path FIFO empty flag.
This latest version of the core will be released in EDK 9.1.01i.
You can download the latest "plb_ddr2_v1_02_a" patch from the following link:
To install the patches, follow the instructions provided in (Xilinx Answer 23474) - "How do I install a patch for the Processor IP Core in EDK tools?"