Re: Ask a technical problem happened on PPC board

2011-12-31 Thread Lorenz Kolb
Hi, first of all: have you tried doing a standalone memory test application? From what I see you are using either a Virtex-4FX or Virtex-5FXT device, correct? So I'd highly recommend doing a standalone test prior to booting Linux to verify the memory controller timings of the FPGA based SoC.

Re: Ask a technical problem happened on PPC board

2011-12-31 Thread manu
Hi, it looks like a memory interface problem. This is a typical issue with FPGA-based PPC systems. You should check/monitor carefully the hardware : - power supplies - memory controller configuration (RAS, CAS, banks...) - timing of pins connected to external memory Prior to boot a linux kern