[U-Boot-Users] Loading from a CF card on the PCMCIA interface
h.schurig at mn-logistik.de
Wed Jan 22 08:33:54 CET 2003
> But I would not like to see this integrated into U-Boot. If you want
> to do this, implement it as a U-Boot standalone application, that can
> be used as second stage boot loader.
I know a proprietary bootloader where the bootloader first checks the IDE-Card
in the PCMCIA slot. If found, he takes the NK.BIN file from there (sounds
like Windows CE, doesn't it) and handles it.
With "handles" I mean: depending on the addresses used in the NK.BIN the
bootloader would simply put it in RAM and execute it, reflash the Linux
kernel+filesystem in Flash or even reflash the bootloader. As you might have
deducted, you can have anything in an NK.BIN file, it's just a bunch of
(address offset, length, data bytes) tuples concatenated.
I find the integration into the bootloader very handy, especially once you
deployed your systems but you still need to do updates. Absolutely no user
intervention when it comes to reflashing ...
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