GPT support in U-Boot

Hi

Just to confirm what Jean-Christophe said on today's meeting: U-Boot has disk/part_efi.c added in September 2008: Add support for CONFIG_EFI_PARTITION (GUID Partition Table) so it's indeed GPT support.

It's currently being turned on for two NVIDIA Tegra2 boards: Harmony and Seaboard.

(I didn't try it out.)

One open question we had from last week's meeting is whether we can have backwards-compatible entries for e.g. boot ROMs in current SoCs as to use GPT for UEFI compatibility but with the relevant "PC" partitions entries as to allow booting.

Cheers,