static void wb_smsc_wdt_initialize(void)
{
unsigned char old;
spin_lock(&io_lock);
open_io_config();
select_io_device(IODEV_NO);
gpio_bit13(0x08);
gpio_bit12(0x0A);
wdt_timeout_value(0);
wdt_timer_ctrl(0x00);
wdt_timer_conf(0x00);
old = read_io_cr(0xF1) & 0x7F;
if (unit == UNIT_SECOND)
old |= 0x80;
wdt_timer_units(old);
close_io_config();
spin_unlock(&io_lock);
}
static void wb_smsc_wdt_initialize(void)
{
unsigned char old;
spin_lock(&io_lock);
open_io_config();
select_io_device(IODEV_NO);
/* enable the watchdog */
gpio_bit13(0x08); /* Select pin 80 = LED not GPIO */
gpio_bit12(0x0A); /* Set pin 79 = WDT not
GPIO/Output/Polarity=Invert */
/* disable the timeout */
wdt_timeout_value(0);
/* reset control register */
wdt_timer_ctrl(0x00);
/* reset configuration register */
wdt_timer_conf(0x00);
/* read old (timer units) register */
old = read_io_cr(0xF1) & 0x7F;
if (unit == UNIT_SECOND)
old |= 0x80; /* set to seconds */
/* set the watchdog timer units */
wdt_timer_units(old);
close_io_config();
spin_unlock(&io_lock);
}
static void wb_smsc_wdt_set_timeout(unsigned char new_timeout)
{
spin_lock(&io_lock);
open_io_config();
select_io_device(IODEV_NO);
wdt_timer_ctrl((new_timeout == 0) ? 0x00 : 0x02);
wdt_timeout_value(new_timeout);
close_io_config();
spin_unlock(&io_lock);
}
static void wb_smsc_wdt_set_timeout(unsigned char new_timeout)
{
spin_lock(&io_lock);
open_io_config();
select_io_device(IODEV_NO);
/* set Power LED to blink, if we enable the timeout */
wdt_timer_ctrl((new_timeout == 0) ? 0x00 : 0x02);
/* set timeout value */
wdt_timeout_value(new_timeout);
close_io_config();
spin_unlock(&io_lock);
}
static void wb_smsc_wdt_shutdown(void)
{
spin_lock(&io_lock);
open_io_config();
select_io_device(IODEV_NO);
gpio_bit13(0x09);
gpio_bit12(0x09);
wdt_timer_conf(0x00);
wdt_timer_ctrl(0x00);
wdt_timeout_value(0x00);
close_io_config();
spin_unlock(&io_lock);
}
static void wb_smsc_wdt_shutdown(void)
{
spin_lock(&io_lock);
open_io_config();
select_io_device(IODEV_NO);
/* disable the watchdog */
gpio_bit13(0x09);
gpio_bit12(0x09);
/* reset watchdog config register */
wdt_timer_conf(0x00);
/* reset watchdog control register */
wdt_timer_ctrl(0x00);
/* disable timeout */
wdt_timeout_value(0x00);
close_io_config();
spin_unlock(&io_lock);
}