[U-Boot] nand_scan() in ARM9 S3C2410

[J.Hwan.Kim]

Hi, everyone

I'm using u-boot for ARM9 S3C2410.
My tool chain is ELDK4.2.

I defined configuration "CONFIG_NAND_CMD, 
CONFIG_SYS_MAX_NAND_DEVICE    1,
and CONFIG_SYS_NAND_BASE 0x4E00000C" for nand_init().

It works well until the routine reaches nand_scan() which is in nand_base.c
When nand_scan() is called, the system hangs.

For test, When I written dummy function is nand_base.c and
called the dummy function from nand.c, the system is down.

My u-boot is using relocation to SDRAM from NAND.
The address of nand_scan() is 0x31F85894.
(TEXT_BASE is 0x31F80000  and SDRAM start from 0x30000000)
I'm sured that the binary data of u-boot.bin (address 0x5894) is same
with SDRAM data in 0x31F85894.
I think the relocation is  OK.

When I attached the routines of nand_base.c to nand.c,
the nand_scan() function passed.

Is there any hint for this problem?

Thanks in advnace.

Regards,
J.Hwan Kim