experimental splash screen support

Werner Almesberger werner at openmoko.org
Tue Feb 20 09:19:52 CET 2007

I wrote:
> - see how things are with full 16 bit. Slow, probably.

It is, although the visible part doesn't change all that much.

Here are the steps with a real 16 bit image. I've also included the
tux, which gets added as the usual BMP, so if you look very carefully,
you can see that its immediate background differs a bit from the

SVN: developers/werner/splash
  ./imghs.pl >out

  load_binary wherever/out 0x32000000
  load_binary wherever/splashu.bmp.gz 0x32096000

  nand erase splash
  nand write.e 0x32000000 splash 0x98000
  setenv splashimage nand read.e 0x33d00000 splash 0x98000
  setenv bootcmd bmp display 0x33d96000 185 475\; ${bootcmd}

Note: you have to reset "bootcmd" to some reasonable default first,
i.e., one that doesn't already include "bmp ...".

- Werner

 / Werner Almesberger, Buenos Aires, Argentina     werner at almesberger.net /

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