about burning sd card image in lsdk2012

[niexuzhong]

Hi:

 As we know, if we want to burn sd card in uboot, first we should use command line :

tftp a0000000 firmware_<machine>_uboot_sdboot.img

then we will use command

  mmc write a0000000 8 1f000 to burn it.

 So my question is why the start block is 8?, Is the first 8 block is for RCW binary and PBL? So I think that we had burned a U-boot image before if we use this command?

[ufedor]

By design during eSDHC boot RCW is fetched from the address 0x1000 which corresponds to 8th 512-byte block.