修改/home/data/AR9344/SDK/sdk/boot/u-boot/common/main.c文件
#ifdef CONFIG_MENUPROMPT
printf(CONFIG_MENUPROMPT, bootdelay);
#else
printf("Hit any key to stop autoboot: %2d ", bootdelay);
#endif
#if defined CONFIG_ZERO_BOOTDELAY_CHECK
/*
* Check if key already pressed
* Don't check if bootdelay < 0
*/
if (bootdelay >= 0) {
if (tstc()) { /* we got a key press */
(void) getc(); /* consume input */
puts ("\b\b\b 0");
abort = 1; /* don't auto boot */
}
}
#endif
while ((bootdelay > 0) && (!abort)) {
int i;
--bootdelay;
/* delay 100 * 10ms */
for (i=0; !abort && i<100; ++i) {
if (tstc()) { /* we got a key press */
if(13 == getc()){
abort = 1; /* don't auto boot */
bootdelay = 0; /* no more delay */
# ifdef CONFIG_MENUKEY
menukey = getc();
# else
(void) getc(); /* consume input */
# endif
break;
}
}
udelay (10000);
}
printf ("\b\b\b%2d ", bootdelay);
}
putc ('\n');
回车键：VK_RETURN (13)
修改之后，只有按下回车键，才会进入u-boot
