[U-Boot] MPC8548 based board Hanging at different conditions

[Ravi Prakash Reddy M]

Dear All,

we are using MPC8548 based custom board, with DDR2 memory. we have successfully ported U-boot 1.3.1 and linux 2.6.19.

but sometimes the board is hanging at the following conditions

- afer relocating to RAM


U-Boot 1.3.1 (Aug 21 2009 - 16:42:56)

CPU:   8548_E, Version: 2.1, (0x80390021)
Core:  E500, Version: 2.2, (0x80210022)
Clock Configuration:
       CPU:1056 MHz, CCB: 528 MHz,
       DDR: 264 MHz, LBC:  66 MHz
L1:    D-cache 32 kB enabled
       I-cache 32 kB enabled
Board: CDS Version 0xf8, PCI Slot 4
CPU Board Revision 255.248 (0xfff8)
I2C:   ready
DRAM:  Initializing
    SDRAM: 64 MB
    DDR: 1024 MB

HANG....



- sometime it will boot u-boot,   HANG while executing u-boot commands
- sometime  booting Linux,   HANG while running some applications  in linux

what could be the reason, can anyboby explain

thank you
mrp





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