12 #include <linux/rtc.h>
20 	u8 set_time;		/* RTC + 0x00 */
21 	u8 hour_set;		/* RTC + 0x01 */
22 	u8 minute_set;		/* RTC + 0x02 */
23 	u8 second_set;		/* RTC + 0x03 */
25 	u8 set_date;		/* RTC + 0x04 */
26 	u8 month_set;		/* RTC + 0x05 */
27 	u8 weekday_set;		/* RTC + 0x06 */
28 	u8 date_set;		/* RTC + 0x07 */
30 	u8 write_sw;		/* RTC + 0x08 */
31 	u8 sw_set;		/* RTC + 0x09 */
32 	u16 year_set;		/* RTC + 0x0a */
34 	u8 alm_enable;		/* RTC + 0x0c */
35 	u8 alm_hour_set;	/* RTC + 0x0d */
36 	u8 alm_min_set;		/* RTC + 0x0e */
37 	u8 int_enable;		/* RTC + 0x0f */
40 	u8 hour;		/* RTC + 0x11 */
41 	u8 minute;		/* RTC + 0x12 */
42 	u8 second;		/* RTC + 0x13 */
44 	u8 month;		/* RTC + 0x14 */
45 	u8 wday_mday;		/* RTC + 0x15 */
46 	u16 year;		/* RTC + 0x16 */
48 	u8 int_alm;		/* RTC + 0x18 */
49 	u8 int_sw;		/* RTC + 0x19 */
50 	u8 alm_status;		/* RTC + 0x1a */
51 	u8 sw_minute;		/* RTC + 0x1b */
53 	u8 bus_error_1;		/* RTC + 0x1c */
54 	u8 int_day;		/* RTC + 0x1d */
55 	u8 int_min;		/* RTC + 0x1e */
56 	u8 int_sec;		/* RTC + 0x1f */
65 	u32 target_time;	/* RTC + 0x20 */
70 	u32 actual_time;	/* RTC + 0x24 */
71 	u32 keep_alive;		/* RTC + 0x28 */
78 	struct rtc_device *rtc;  member
103 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_read_time()  local
104 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_read_time()
125 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_set_time()  local
126 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_set_time()
147 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5200_rtc_read_time()  local
148 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5200_rtc_read_time()
174 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5200_rtc_set_time()  local
175 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5200_rtc_set_time()
196 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_read_alarm()  local
197 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_read_alarm()
199 	*alarm = rtc->wkalarm;  in mpc5121_rtc_read_alarm()
208 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_set_alarm()  local
209 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_set_alarm()
220 	rtc->wkalarm = *alarm;  in mpc5121_rtc_set_alarm()
226 	struct mpc5121_rtc_data *rtc = dev_get_drvdata((struct device *)dev);  in mpc5121_rtc_handler()  local
227 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_handler()
234 		rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_AF);  in mpc5121_rtc_handler()
243 	struct mpc5121_rtc_data *rtc = dev_get_drvdata((struct device *)dev);  in mpc5121_rtc_handler_upd()  local
244 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_handler_upd()
250 		rtc_update_irq(rtc->rtc, 1, RTC_IRQF | RTC_UF);  in mpc5121_rtc_handler_upd()
260 	struct mpc5121_rtc_data *rtc = dev_get_drvdata(dev);  in mpc5121_rtc_alarm_irq_enable()  local
261 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_alarm_irq_enable()
270 	rtc->wkalarm.enabled = val;  in mpc5121_rtc_alarm_irq_enable()
293 	struct mpc5121_rtc_data *rtc;  in mpc5121_rtc_probe()  local
296 	rtc = devm_kzalloc(&op->dev, sizeof(*rtc), GFP_KERNEL);  in mpc5121_rtc_probe()
297 	if (!rtc)  in mpc5121_rtc_probe()
300 	rtc->regs = devm_platform_ioremap_resource(op, 0);  in mpc5121_rtc_probe()
301 	if (IS_ERR(rtc->regs)) {  in mpc5121_rtc_probe()
303 		return PTR_ERR(rtc->regs);  in mpc5121_rtc_probe()
308 	platform_set_drvdata(op, rtc);  in mpc5121_rtc_probe()
310 	rtc->irq = irq_of_parse_and_map(op->dev.of_node, 1);  in mpc5121_rtc_probe()
311 	err = devm_request_irq(&op->dev, rtc->irq, mpc5121_rtc_handler, 0,  in mpc5121_rtc_probe()
312 			       "mpc5121-rtc", &op->dev);  in mpc5121_rtc_probe()
315 							__func__, rtc->irq);  in mpc5121_rtc_probe()
319 	rtc->irq_periodic = irq_of_parse_and_map(op->dev.of_node, 0);  in mpc5121_rtc_probe()
320 	err = devm_request_irq(&op->dev, rtc->irq_periodic,  in mpc5121_rtc_probe()
325 						__func__, rtc->irq_periodic);  in mpc5121_rtc_probe()
329 	rtc->rtc = devm_rtc_allocate_device(&op->dev);  in mpc5121_rtc_probe()
330 	if (IS_ERR(rtc->rtc)) {  in mpc5121_rtc_probe()
331 		err = PTR_ERR(rtc->rtc);  in mpc5121_rtc_probe()
335 	rtc->rtc->ops = &mpc5200_rtc_ops;  in mpc5121_rtc_probe()
336 	set_bit(RTC_FEATURE_ALARM_RES_MINUTE, rtc->rtc->features);  in mpc5121_rtc_probe()
337 	clear_bit(RTC_FEATURE_UPDATE_INTERRUPT, rtc->rtc->features);  in mpc5121_rtc_probe()
338 	rtc->rtc->range_min = RTC_TIMESTAMP_BEGIN_0000;  in mpc5121_rtc_probe()
339 	rtc->rtc->range_max = 65733206399ULL; /* 4052-12-31 23:59:59 */  in mpc5121_rtc_probe()
341 	if (of_device_is_compatible(op->dev.of_node, "fsl,mpc5121-rtc")) {  in mpc5121_rtc_probe()
343 		ka = in_be32(&rtc->regs->keep_alive);  in mpc5121_rtc_probe()
346 				"mpc5121-rtc: Battery or oscillator failure!\n");  in mpc5121_rtc_probe()
347 			out_be32(&rtc->regs->keep_alive, ka);  in mpc5121_rtc_probe()
349 		rtc->rtc->ops = &mpc5121_rtc_ops;  in mpc5121_rtc_probe()
355 		rtc->rtc->range_min = 0;  in mpc5121_rtc_probe()
356 		rtc->rtc->range_max = U32_MAX;  in mpc5121_rtc_probe()
359 	err = devm_rtc_register_device(rtc->rtc);  in mpc5121_rtc_probe()
366 	irq_dispose_mapping(rtc->irq_periodic);  in mpc5121_rtc_probe()
368 	irq_dispose_mapping(rtc->irq);  in mpc5121_rtc_probe()
375 	struct mpc5121_rtc_data *rtc = platform_get_drvdata(op);  in mpc5121_rtc_remove()  local
376 	struct mpc5121_rtc_regs __iomem *regs = rtc->regs;  in mpc5121_rtc_remove()
382 	irq_dispose_mapping(rtc->irq);  in mpc5121_rtc_remove()
383 	irq_dispose_mapping(rtc->irq_periodic);  in mpc5121_rtc_remove()
388 	{ .compatible = "fsl,mpc5121-rtc", },
389 	{ .compatible = "fsl,mpc5200-rtc", },
397 		.name = "mpc5121-rtc",
406 MODULE_DESCRIPTION("Freescale MPC5121 built-in RTC driver");