u-boot/board/trab
Po-Yu Chuang 44c6e6591c rename _end to __bss_end__
Currently, _end is used for end of BSS section.  We want _end to mean
end of u-boot image, so we rename _end to __bss_end__ first.

Signed-off-by: Po-Yu Chuang <ratbert@faraday-tech.com>
2011-03-27 19:18:37 +02:00
..
auto_update.c Fix e-mail address of Gary Jennejohn. 2009-05-15 22:11:59 +02:00
cmd_trab.c Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00
config.mk Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE 2010-10-18 22:07:10 +02:00
flash.c Redundant Environment: protect full sector size 2009-06-04 00:16:16 +02:00
lowlevel_init.S Rename TEXT_BASE into CONFIG_SYS_TEXT_BASE 2010-10-18 22:07:10 +02:00
Makefile Switch from archive libraries to partial linking 2010-11-17 21:02:18 +01:00
memory.c board/trab/memory.c: Fix compile problems. 2008-12-16 22:32:25 +01:00
Pt1000_temp_data.h * Patch by Martin Krause, 11 Sep 2003: 2003-09-11 23:06:34 +00:00
README.kbd Initial revision 2002-11-03 00:24:07 +00:00
rs485.c Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00
rs485.h arm: Move cpu/$CPU to arch/arm/cpu/$CPU 2010-04-13 09:13:24 +02:00
trab.c Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00
trab_fkt.c Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00
tsc2000.c Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00
tsc2000.h Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00
u-boot.lds rename _end to __bss_end__ 2011-03-27 19:18:37 +02:00
vfd.c Add generic support for samsung s3c2440 2010-10-28 15:35:56 +09:00

The TRAB keyboard implementation is similar to that for LWMON and
R360MPI boards. The only difference concerns key naming. There are 4
keys on TRAB: 1, 2, 3, 4.

1) The "kbd" command provides information about the current state of
   the keys. For example,

	TRAB # kbd
	Keys: 1 0 1 0

   means that keys 1 and 3 are pressed. The keyboard status is also
   stored in the "keybd" environment variable. In this example we get

	keybd=1010

2) The "preboot" variable is set according to current environment
   settings and keys pressed. This is an example:

	TRAB # setenv magic_keys XY
	TRAB # setenv key_magicX 12
	TRAB # setenv key_cmdX echo ## Keys 1 + 2 pressed ##\;echo
	TRAB # setenv key_magicY 13
	TRAB # setenv key_cmdY echo ## Keys 1 + 3 pressed ##\;echo

   Here "magic_keys=XY" means that the "key_magicX" and "key_magicY"
   variables will be checked for a match. Each variable "key_magic*"
   defines a set of keys. In the our example, if keys 1 and 3 are
   pressed during reset, then "key_magicY" matches, so the "preboot"
   variable will be set to the contents of "key_cmdY":

	preboot=echo ## Keys 1 + 3 pressed ##;echo

3) The TRAB board has optional modem support. When a certain key
   combination is pressed on the keyboard at power-on, the firmware
   performs the necessary initialization of the modem and allows for
   dial-in. The key combination is specified in the
   "include/configs/trab.h" file. For example:

	#define        CONFIG_MODEM_KEY_MAGIC  "23"

   means that modem will be initialized if and only if both keys 2, 3
   are pressed. Note that the format of this string is similar to the
   format of "key_magic*" environment variables described above.