Also, the following board-specific routines will be called from the
U-Boot common code:
- o) int board_power_mode(void)
-
- This routine will return the mode the system is running in
- (POST_POWERON, POST_NORMAL or POST_SHUTDOWN).
-
- o) void board_poweroff(void)
-
- This routine will turn off the power supply of the board. It
- will be called on power-fail booting after running all POST
- tests.
-
o) int post_hotkeys_pressed(gd_t *gd)
This routine will scan the keyboard to detect if a magic key