I am investigating field failure and product with MPC8314E processor hung up at the beginning of U-Boot process.
Debugging over the serial port indicates DRAM: 512 MiB (DDR2, 32-bit, ECC off, 266.667 MHz).
Process stopped after this line.
An actual DRAM has 4GB size - 2 ICs p/n MT47H128M16RT-25E from Micron Technologies.
Can it cause the problem, and why DRAM size displayed incorrectly (512 MB instead of 4 GB)?
Copy of debugging screen shot it attached.
NOR FLASH memory with U-Boot image (p/n S29GL256N) has correct supply voltage, and signals CE and OE are seems OK.
What other troubleshooting steps/tools can I use to debug this failure?