[U-Boot] generic nand_load.S for mx31

[alfred steele]

Hi,

There is a file  "cpu/arm1136/mx31/nand_load.S" which performs some
startup functions for Copy image from flash to SDRAM  etc..It does not
reinitialize the DDR though.

Although i haven't dugged up the details yet, could someone tell me
what is the difference between  nand_boot.c and nand_load.S or the
assembly code is just a helper  for the nand_boot api's.

Thanks,
Alfred.