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 <sys/types.h>
#include "types.h"

void
cmd_wd()
{
	/* stop/disable the watchdog timer */
	*(volatile u16 *)0xFFFFF804 = 0xF5;
	*(volatile u16 *)0xFFFFF804 = 0xA0;
}

void
cmd_we()
{
	/* watchdog enable */
	*(volatile u16 *)0xFFFFF804 = 0x8000;
}

void
cmd_wr()
{
	/* read and display watchdog downcount register */
	printf("%04X\n", *(volatile u16 *)0xFFFFF802);
}

void
cmd_ww(argbulk)
	char *argbulk;
{
	/* single or double write to WATCHDOG_TIM_MODE */
	char *argv[3];
	u_long w1, w2;

	if (parse_args(argbulk, 1, 2, argv, 0) < 0)
		return;
	if (parse_hexarg(argv[0], 4, &w1) < 0) {
		printf("ERROR: arg1 must be a valid 16-bit hex value\n");
		return;
	}
	if (argv[1] && parse_hexarg(argv[1], 4, &w2) < 0) {
		printf("ERROR: arg2 must be a valid 16-bit hex value\n");
		return;
	}
	/* do it */
	*(volatile u16 *)0xFFFFF804 = w1;
	if (argv[1])
		*(volatile u16 *)0xFFFFF804 = w2;
}