int misc_init_r(void)
{
u32 keys;
char *s;
int want_recovery;
/* we use bus I2C-0 for the on-board eeprom */
i2c_set_bus_num(0);
/* setup GPIO directions and initial values */
gpio_configure();
/*
* enforce the start of the recovery system when
* - the appropriate keys were pressed
* - "some" external software told us to
* - a previous installation was aborted or has failed
*/
want_recovery = 0;
keys = gpio_querykbd();
if (gpio_diag)
printf("GPIO keyboard status [0x%02X]\n", keys);
if ((keys & GPIOKEY_BITS_RECOVERY) == GPIOKEY_BITS_RECOVERY) {
printf("detected recovery request (keyboard)\n");
want_recovery = 1;
}
s = getenv("want_recovery");
if ((s != NULL) && (*s != '\0')) {
printf("detected recovery request (environment)\n");
want_recovery = 1;
}
s = getenv("install_in_progress");
if ((s != NULL) && (*s != '\0')) {
printf("previous installation has not completed\n");
want_recovery = 1;
}
s = getenv("install_failed");
if ((s != NULL) && (*s != '\0')) {
printf("previous installation has failed\n");
want_recovery = 1;
}
if (want_recovery) {
printf("enforced start of the recovery system\n");
setenv("bootcmd", "run recovery");
}
/*
* boot the recovery system without waiting; boot the
* production system without waiting by default, only
* insert a pause (to provide a chance to get a prompt)
* when GPIO keys were pressed during power on
*/
if (want_recovery)
setenv("bootdelay", "0");
else if (!keys)
setenv("bootdelay", "0");
else
setenv("bootdelay", "2");
/* get the ethernet MAC from I2C EEPROM */
mac_read_from_eeprom();
return 0;
}
int misc_init_r(void)
{
u32 keys;
char *s;
int want_recovery;
/* we use bus I2C-0 for the on-board eeprom */
i2c_set_bus_num(0);
/* setup GPIO directions and initial values */
gpio_configure();
/*
* check the GPIO keyboard,
* enforced start of the recovery when
* - the appropriate keys were pressed
* - a previous installation was aborted or has failed
* - "some" external software told us to
*/
want_recovery = 0;
keys = gpio_querykbd();
printf("GPIO keyboard status [0x%08X]\n", keys);
/* XXX insist in the _exact_ combination? */
if ((keys & GPIOKEY_BITS_RECOVERY) == GPIOKEY_BITS_RECOVERY) {
printf("GPIO keyboard requested RECOVERY\n");
/* XXX TODO
* refine the logic to detect the first keypress, and
* wait to recheck IF it was the recovery combination?
*/
want_recovery = 1;
}
s = getenv("install_in_progress");
if ((s != NULL) && (*s != '\0')) {
printf("previous installation aborted, running RECOVERY\n");
want_recovery = 1;
}
s = getenv("install_failed");
if ((s != NULL) && (*s != '\0')) {
printf("previous installation FAILED, running RECOVERY\n");
want_recovery = 1;
}
s = getenv("want_recovery");
if ((s != NULL) && (*s != '\0')) {
printf("running RECOVERY according to the request\n");
want_recovery = 1;
}
if (want_recovery)
setenv("bootcmd", "run recovery");
/*
* boot the recovery system without waiting; boot the
* production system without waiting by default, only
* insert a pause (to provide a chance to get a prompt)
* when GPIO keys were pressed during power on
*/
if (want_recovery)
setenv("bootdelay", "0");
else if (!keys)
setenv("bootdelay", "0");
else
setenv("bootdelay", "2");
/* get the ethernet MAC from I2C EEPROM */
mac_read_from_eeprom();
return 0;
}
