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.

/* Calypso RTC registers */

#ifndef __CALYPSO_RTC_H
#define	__CALYPSO_RTC_H

#include "types.h"

#define	RTC_REGS_BASE	0xFFFE1800

struct rtctime {
	u8	seconds;
	u8	minutes;
	u8	hours;
	u8	day_of_month;
	u8	month;
	u8	year;
	u8	day_of_week;
	u8	pad;
};

struct rtcregs {
	struct rtctime	rtc_cur;
	struct rtctime	rtc_alarm;
	u8		rtc_ctrl_reg;
	u8		rtc_status_reg;
	u8		rtc_int_reg;
	u8		rtc_comp_lsb_reg;
	u8		rtc_comp_msb_reg;
	u8		rtc_res_prog_reg;
};

#define	RTC_REGS	(*(volatile struct rtcregs *) RTC_REGS_BASE)

#endif	/* include guard */