README.evb64260 1.8 KB

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  1. This file contains status information for the port of U-Boot to the
  2. Galileo Evaluation Board.
  3. Author: Josh Huber <huber@mclx.com>
  4. Mission Critical Linux, Inc.
  5. The support for the Galileo Evaluation board is fairly minimal now.
  6. It's sufficient to boot Linux, but doesn't provide too much more than
  7. what's required to do this.
  8. Both DUART channels are supported (to use the second one, you have to
  9. modify the board -- see the schematics for where to solder on the
  10. devices module). The ethernet ports are supported, and the MPSC is
  11. supported as a console driver. (keep in mind that the kernel has no
  12. support for this yet)
  13. There are still occaisonal lockups with the MPSC console driver due to
  14. (we think!) overrun problems. If you're looking for something stable
  15. to use for Linux development, consider sticking with the DUART console
  16. for now.
  17. Automatic memory sizing mostly works. We've had problems with some
  18. combinations of memory. Please send us email if you're having trouble
  19. with respect to the memory detection.
  20. Right now, only the 512k boot flash is supported. Support for the
  21. 16MB flash on the devices module is forthcoming. Right now the flash
  22. is stored at the 256k boundry in flash, wasting a whole sector (64k!)
  23. for environment data. This isn't really a big deal since we're not
  24. using the 512k for anything else. (Just U-Boot and the environment)
  25. Finally, here is a sample output session:
  26. U-Boot 1.0.0-pre1 (Jun 6 2001 - 12:45:11)
  27. Initializing...
  28. CPU: MPC7400 (altivec enabled) v2.9
  29. Board: EVB64260
  30. DRAM: 256 MB
  31. FLASH: 512 kB
  32. In: serial
  33. Out: serial
  34. Err: serial
  35. =>
  36. The default configuration should be correct for the evaluation board,
  37. as it's shipped from Galileo. Keep in mind that the default baudrate
  38. is set to 38400, 8N1.
  39. Good luck, and make sure to send any bugreports to us (or the
  40. u-boot-users list).
  41. Josh