General I2C refactoring and environment settings cleanup

These are the patches for WP252006.
There will be a follow-up patched for WP254081.

Environment settings

    * board_id bootargs parameter from board_id environment var
      set in board_late_init().
    * decreased bootdelay to 1 second
    * added check for keypress on bootdelay==0
    * removed preboot command and introduced "run cmdfile" instead
    * changed rootfstype from ext2 to ext3

    General I2C refactoring

    * include/configs/u8500.h:
    	Enabled i2c command line commands.
    	Changed environment settings to use board_id as set in
    	board_late_init().
    	Added I2C address and configuration defines.

    * board/st/u8500/Makefile: Replaced i2c.o with u8500_i2c.o.

    * board/st/u8500/gpio.c, gpio.h: Added I2C busses to altfunc_table.

    * board/st/u8500/init_mmc.c: removed config_extended_gpio() and therefore I2C
    	references. GPIOE settings are now in board_late_init().

    * board/st/u8500/u8500.c:
    	Removed I2C/SD gpio settings from addr,value array.
    	board_late_init():
              Determine and set board_id environment variable
              0: mop500, 1: href500
              Above boards have different GPIO expander chips which we can
              distinguish by the chip id (1 and 3).
              The board_id environment variable is needed for the Linux bootargs.

Signed-off-by: Michael Brandt <Michael.Brandt@stericsson.com>
Change-Id: I4c2cab28c1cb74692e0c72b2daa422e97787ff8d
Reviewed-on: http://gerrit.lud.stericsson.com/gerrit/167
Reviewed-by: Michael BRANDT <michael.brandt@stericsson.com>
Reviewed-by: Jonas ABERG <jonas.aberg@stericsson.com>
Tested-by: Jonas ABERG <jonas.aberg@stericsson.com>

0 files changed, 0 insertions, 0 deletions