target-utils: added 10 ms delay at the end of abb_power_off() The deosmification of the ABB access code (replacement of osmo_delay_ms() bogus delays with correctly-timed ones, which are significantly shorter) had one annoying side effect: when executing the poweroff command from any of the programs, one last '=' prompt character was being sent (and received by the x86 host) as the Calypso board powers off. With delays being shorter now, the abb_power_off() function was returning and the standalone program's main loop was printing its prompt before the Iota chip fully executed the switch-off sequence! I thought about inserting an endless tight loop at the end of the abb_power_off() function, but the implemented solution of a 10 ms delay is a little nicer IMO because if the DEVOFF operation doesn't happen for some reason in a manual hacking scenario, there won't be an artificial blocker in the form of a tight loop keeping us from further poking around.

#include "types.h"

extern const u32 _Magic_words[2];

main()
{
	/* 13 MHz to the peripherals */
	*(volatile u16 *)0xFFFFFD02 |= 0x40;
	uart_init();
	printf("Flash boot test program running (mode %u)\n", _Magic_words[0]);
	for (;;) {
		putchar('=');
		if (command_entry())
			command_dispatch();
	}
}