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![]() The TRAB board references local libgcc helper routines (lib_arm/div0.o and lib_arm/_umodsi3.o) which cause build problems when we try to use the normal, compiler provided libgcc instead. Removing these references allows to build both with and without the local libgcc helper routines. Signed-off-by: Wolfgang Denk <wd@denx.de> |
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.. | ||
auto_update.c | ||
cmd_trab.c | ||
config.mk | ||
flash.c | ||
lowlevel_init.S | ||
Makefile | ||
memory.c | ||
Pt1000_temp_data.h | ||
README.kbd | ||
rs485.c | ||
rs485.h | ||
trab_fkt.c | ||
trab.c | ||
tsc2000.c | ||
tsc2000.h | ||
u-boot.lds | ||
vfd.c |
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.