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Retrieved from "http://wiki.openmoko.org/wiki/U-Boot"
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The GTA01 uses the u-boot bootloader.

More information on u-boot can be found at [1] and [2].

However, the vanilla u-boot doesn't support many of the features that GTA01 needs, such as

  • Support for boot from NAND flahs using S3C2410 Steppingstone
  • Support for reading kernel/initrd from SD/Transflash
  • Support for S3C2410 NAND flash
  • Support for downloading programs via S3C2410 USB Device Controller
  • Support to display bootup logo / status on S3C2410 Framebuffer

User:HaraldWelte is working on those issues, and in fact most of them have already been implemented.