• Jason Kridner's avatar
    BeagleBoard: Added userbutton command · f835ea71
    Jason Kridner authored
    Based on commit f1099c7c43caf5bac3bf6a65aa266fade4747072
        Author: Greg Turner <gregturner@ti.com>
        Date:   Tue May 25 09:19:06 2010 -0500
        New u-boot command for status of USER button on BeagleBoard-xM
             Modified bootcmd to check the staus at boot time and set
    	 filename of the boot script.
    * Moved to a BeagleBoard specific file.
    * Removed changes to default boot command from adding userbutton
    * Made to handle pre-xM boards.
    * Flipped polarity of the return value to avoid confusion.  Success (0)
      is when the button is pressed.  Failure (1) is when the button is NOT
    * Used latest revision getting function.
    * Used latest macros for board revision.
    * Added xM-C revision definition (optional, since it was default)
    * updated default configuration with UserButton functionality
      * Added a separate bootenv variable to load a user defined .txt file
      * Added an example, showing how a different environment file can be loaded with
        the user button pressed
    Signed-off-by: default avatarJason Kridner <jkridner@beagleboard.org>
    Signed-off-by: default avatarKoen Kooi <koen@dominion.thruhere.net>
    Signed-off-by: default avatarJoel A Fernandes <agnel.joel@gmail.com>
    Cc: Greg Turner <gregturner@ti.com>
    Signed-off-by: default avatarSandeep Paulraj <s-paulraj@ti.com>