5  * SPDX-License-Identifier:	GPL-2.0+
9  * Date & Time support for the built-in Samsung S3C24X0 RTC
35 		writeb(readb(&rtc->rtccon) | 0x01, &rtc->rtccon);  in SetRTC_Access()
39 		writeb(readb(&rtc->rtccon) & ~0x01, &rtc->rtccon);  in SetRTC_Access()
44 /* ------------------------------------------------------------------------- */
49 	uchar sec, min, hour, mday, wday, mon, year;  in rtc_get()  local
58 		sec  = readb(&rtc->bcdsec);  in rtc_get()
59 		min  = readb(&rtc->bcdmin);  in rtc_get()
60 		hour = readb(&rtc->bcdhour);  in rtc_get()
61 		mday = readb(&rtc->bcddate);  in rtc_get()
62 		wday = readb(&rtc->bcdday);  in rtc_get()
63 		mon  = readb(&rtc->bcdmon);  in rtc_get()
64 		year = readb(&rtc->bcdyear);  in rtc_get()
65 	} while (sec != readb(&rtc->bcdsec));  in rtc_get()
68 	a_sec   = readb(&rtc->almsec);  in rtc_get()
69 	a_min   = readb(&rtc->almmin);  in rtc_get()
70 	a_hour  = readb(&rtc->almhour);  in rtc_get()
71 	a_date  = readb(&rtc->almdate);  in rtc_get()
72 	a_mon   = readb(&rtc->almmon);  in rtc_get()
73 	a_year  = readb(&rtc->almyear);  in rtc_get()
74 	a_armed = readb(&rtc->rtcalm);  in rtc_get()
80 	printf("Get RTC year: %02x mon/cent: %02x mday: %02x wday: %02x "  in rtc_get()
82 	       year, mon, mday, wday, hour, min, sec);  in rtc_get()
88 	tmp->tm_sec  = bcd2bin(sec & 0x7F);  in rtc_get()
89 	tmp->tm_min  = bcd2bin(min & 0x7F);  in rtc_get()
90 	tmp->tm_hour = bcd2bin(hour & 0x3F);  in rtc_get()
91 	tmp->tm_mday = bcd2bin(mday & 0x3F);  in rtc_get()
92 	tmp->tm_mon  = bcd2bin(mon & 0x1F);  in rtc_get()
93 	tmp->tm_year = bcd2bin(year);  in rtc_get()
94 	tmp->tm_wday = bcd2bin(wday & 0x07);  in rtc_get()
95 	if (tmp->tm_year < 70)  in rtc_get()
96 		tmp->tm_year += 2000;  in rtc_get()
98 		tmp->tm_year += 1900;  in rtc_get()
99 	tmp->tm_yday  = 0;  in rtc_get()
100 	tmp->tm_isdst = 0;  in rtc_get()
102 	printf("Get DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",  in rtc_get()
103 	       tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,  in rtc_get()
104 	       tmp->tm_hour, tmp->tm_min, tmp->tm_sec);  in rtc_get()
107 	return 0;  in rtc_get()
113 	uchar sec, min, hour, mday, wday, mon, year;  in rtc_set()  local
116 	printf("Set DATE: %4d-%02d-%02d (wday=%d)  TIME: %2d:%02d:%02d\n",  in rtc_set()
117 	       tmp->tm_year, tmp->tm_mon, tmp->tm_mday, tmp->tm_wday,  in rtc_set()
118 	       tmp->tm_hour, tmp->tm_min, tmp->tm_sec);  in rtc_set()
120 	year = bin2bcd(tmp->tm_year % 100);  in rtc_set()
121 	mon  = bin2bcd(tmp->tm_mon);  in rtc_set()
122 	wday = bin2bcd(tmp->tm_wday);  in rtc_set()
123 	mday = bin2bcd(tmp->tm_mday);  in rtc_set()
124 	hour = bin2bcd(tmp->tm_hour);  in rtc_set()
125 	min  = bin2bcd(tmp->tm_min);  in rtc_set()
126 	sec  = bin2bcd(tmp->tm_sec);  in rtc_set()
132 	writeb(sec, &rtc->bcdsec);  in rtc_set()
133 	writeb(min, &rtc->bcdmin);  in rtc_set()
134 	writeb(hour, &rtc->bcdhour);  in rtc_set()
135 	writeb(mday, &rtc->bcddate);  in rtc_set()
136 	writeb(wday, &rtc->bcdday);  in rtc_set()
137 	writeb(mon, &rtc->bcdmon);  in rtc_set()
138 	writeb(year, &rtc->bcdyear);  in rtc_set()
143 	return 0;  in rtc_set()
150 	writeb((readb(&rtc->rtccon) & ~0x06) | 0x08, &rtc->rtccon);  in rtc_reset()
151 	writeb(readb(&rtc->rtccon) & ~(0x08 | 0x01), &rtc->rtccon);  in rtc_reset()