12 #include <linux/rtc.h>
22 	u8 set_time;		/* RTC + 0x00 */
23 	u8 hour_set;		/* RTC + 0x01 */
24 	u8 minute_set;		/* RTC + 0x02 */
25 	u8 second_set;		/* RTC + 0x03 */
27 	u8 set_date;		/* RTC + 0x04 */
28 	u8 month_set;		/* RTC + 0x05 */
29 	u8 weekday_set;		/* RTC + 0x06 */
30 	u8 date_set;		/* RTC + 0x07 */
32 	u8 write_sw;		/* RTC + 0x08 */
33 	u8 sw_set;		/* RTC + 0x09 */
34 	u16 year_set;		/* RTC + 0x0a */
36 	u8 alm_enable;		/* RTC + 0x0c */
37 	u8 alm_hour_set;	/* RTC + 0x0d */
38 	u8 alm_min_set;		/* RTC + 0x0e */
39 	u8 int_enable;		/* RTC + 0x0f */
42 	u8 hour;		/* RTC + 0x11 */
43 	u8 minute;		/* RTC + 0x12 */
44 	u8 second;		/* RTC + 0x13 */
46 	u8 month;		/* RTC + 0x14 */
47 	u8 wday_mday;		/* RTC + 0x15 */
48 	u16 year;		/* RTC + 0x16 */
50 	u8 int_alm;		/* RTC + 0x18 */
51 	u8 int_sw;		/* RTC + 0x19 */
52 	u8 alm_status;		/* RTC + 0x1a */
53 	u8 sw_minute;		/* RTC + 0x1b */
55 	u8 bus_error_1;		/* RTC + 0x1c */
56 	u8 int_day;		/* RTC + 0x1d */
57 	u8 int_min;		/* RTC + 0x1e */
58 	u8 int_sec;		/* RTC + 0x1f */
67 	u32 target_time;	/* RTC + 0x20 */
72 	u32 actual_time;	/* RTC + 0x24 */
73 	u32 keep_alive;		/* RTC + 0x28 */
80 	struct rtc_device *rtc;  member
105 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_read_time()  local
106 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_read_time()
127 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_set_time()  local
128 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_set_time()
149 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5200_rtc_read_time()  local
150 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5200_rtc_read_time()
176 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5200_rtc_set_time()  local
177 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5200_rtc_set_time()
198 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_read_alarm()  local
199 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_read_alarm()
201 	*alarm = rtc->wkalarm;  in mpc5121_rtc_read_alarm()
210 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_set_alarm()  local
211 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_set_alarm()
222 	rtc->wkalarm = *alarm;  in mpc5121_rtc_set_alarm()
228 	struct mpc5121_rtc_data *rtc = dev_get_drvdata((struct device *)dev);  in mpc5121_rtc_handler()  local
229 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_handler()
236 		rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);  in mpc5121_rtc_handler()
245 	struct mpc5121_rtc_data *rtc = dev_get_drvdata((struct device *)dev);  in mpc5121_rtc_handler_upd()  local
246 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_handler_upd()
252 		rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_UF);  in mpc5121_rtc_handler_upd()
262 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_alarm_irq_enable()  local
263 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_alarm_irq_enable()
272 	rtc->wkalarm.enabled = val;  in mpc5121_rtc_alarm_irq_enable()
295 	struct mpc5121_rtc_data *rtc;  in mpc5121_rtc_probe()  local
298 	rtc = devm_kzalloc(&op->dev, sizeof(*rtc), GFP_KERNEL);  in mpc5121_rtc_probe()
299 	if (!rtc)  in mpc5121_rtc_probe()
302 	rtc->regs = devm_platform_ioremap_resource(op, 0);  in mpc5121_rtc_probe()
303 	if (IS_ERR(rtc->regs)) {  in mpc5121_rtc_probe()
305 		return PTR_ERR(rtc->regs);  in mpc5121_rtc_probe()
310 	platform_set_drvdata(op, rtc);  in mpc5121_rtc_probe()
312 	rtc->irq = irq_of_parse_and_map(op->dev.of_node, 1);  in mpc5121_rtc_probe()
313 	err = devm_request_irq(&op->dev, rtc->irq, mpc5121_rtc_handler, 0,  in mpc5121_rtc_probe()
314 			       "mpc5121-rtc", &op->dev);  in mpc5121_rtc_probe()
317 							__func__, rtc->irq);  in mpc5121_rtc_probe()
321 	rtc->irq_periodic = irq_of_parse_and_map(op->dev.of_node, 0);  in mpc5121_rtc_probe()
322 	err = devm_request_irq(&op->dev, rtc->irq_periodic,  in mpc5121_rtc_probe()
327 						__func__, rtc->irq_periodic);  in mpc5121_rtc_probe()
331 	rtc->rtc = devm_rtc_allocate_device(&op->dev);  in mpc5121_rtc_probe()
332 	if (IS_ERR(rtc->rtc)) {  in mpc5121_rtc_probe()
333 		err = PTR_ERR(rtc->rtc);  in mpc5121_rtc_probe()
337 	rtc->rtc->ops = &mpc5200_rtc_ops;  in mpc5121_rtc_probe()
338 	set_bit(RTC_FEATURE_ALARM_RES_MINUTE, rtc->rtc->features);  in mpc5121_rtc_probe()
339 	clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->rtc->features);  in mpc5121_rtc_probe()
340 	rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_0000;  in mpc5121_rtc_probe()
341 	rtc->rtc->range_max = 65733206399ULL; /* 4052-12-31 23:59:59 */  in mpc5121_rtc_probe()
343 	if (of_device_is_compatible(op->dev.of_node, "fsl,mpc5121-rtc")) {  in mpc5121_rtc_probe()
345 		ka = in_be32(&rtc->regs->keep_alive);  in mpc5121_rtc_probe()
348 				"mpc5121-rtc: Battery or oscillator failure!\n");  in mpc5121_rtc_probe()
349 			out_be32(&rtc->regs->keep_alive, ka);  in mpc5121_rtc_probe()
351 		rtc->rtc->ops = &mpc5121_rtc_ops;  in mpc5121_rtc_probe()
357 		rtc->rtc->range_min = 0;  in mpc5121_rtc_probe()
358 		rtc->rtc->range_max = U32_MAX;  in mpc5121_rtc_probe()
361 	err = devm_rtc_register_device(rtc->rtc);  in mpc5121_rtc_probe()
368 	irq_dispose_mapping(rtc->irq_periodic);  in mpc5121_rtc_probe()
370 	irq_dispose_mapping(rtc->irq);  in mpc5121_rtc_probe()
377 	struct mpc5121_rtc_data *rtc = platform_get_drvdata(op);  in mpc5121_rtc_remove()  local
378 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_remove()
384 	irq_dispose_mapping(rtc->irq);  in mpc5121_rtc_remove()
385 	irq_dispose_mapping(rtc->irq_periodic);  in mpc5121_rtc_remove()
392 	{ .compatible = "fsl,mpc5121-rtc", },
393 	{ .compatible = "fsl,mpc5200-rtc", },
401 		.name = "mpc5121-rtc",