View source for Bootloader

From Openmoko

Jump to: navigation, search

You do not have permission to edit this page, for the following reasons:

  • The action you have requested is limited to users in the group: Administrators.
  • You must confirm your email address before editing pages. Please set and validate your email address through your user preferences.

You can view and copy the source of this page:

Return to Bootloader.

Personal tools

On cold start or warm start the bootloader is a small program that start up the main operating system.[1]

The Openmoko phones can use U-Boot (Openmoko default), U-boot-gena2x or Qi as bootloaders. Qi and U-boot-gena2x is actively developed (2012), while the Openmoko version of U-Boot is not.

Neo FreeRunner GTA02

The Neo FreeRunner has two bootloaders. The NOR Flash contains a version of U-Boot which cannot be modified. Therefore it is always available as a fallback.

The second NAND resident bootloader can be modified without any risk. This bootloader can be booted into by pressing and holding the AUX button and then pressing the Power button.

Note that the NOR bootloader has a size limit of 2 MB for the kernel. The NAND u-boot loader has the same limit, but you could rather easily increase it by modifying the u-boot environment.

Neo 1973 GTA01

The default bootloader of the Neo 1973 is U-Boot. The bootloader of the Neo 1973 can be modified, but this is only recommended if a debug board is available.