static void postinit_slowboot(void)
{
	sei();

	uart_puts("\nreset from");
	if (MCUSR & (1 << WDRF))
		uart_puts(" WDT");
	if (MCUSR & (1 << BORF))
		uart_puts(" BO");
	if (MCUSR & (1 << EXTRF))
		uart_puts(" EXT");
	if (MCUSR & (1 << PORF))
		uart_puts(" POR");
	MCUSR = 0;

	uart_puts("\nwdt_generation ");
	uart_puthex(wdt_generation);

	uart_puts("\ndelay...\n");
	wdt_reset();
	_delay_ms(1000);
	wdt_reset();
	uart_puts("\ninit done\n");
}