1 /*-
69 #define	MV_RTC_LOCK(sc)		mtx_lock_spin(&(sc)->mutex)
70 #define	MV_RTC_UNLOCK(sc)	mtx_unlock_spin(&(sc)->mutex)
98 	{ -1, 0 }
134 	"rtc",
143 	{"marvell,armada-380-rtc",	RTC_A38X},
144 	{"marvell,armada-8k-rtc",	RTC_A8K},
194 	if (!ofw_bus_search_compatible(dev, mv_rtc_compat)->ocd_data)  in mv_rtc_probe()
197 	device_set_desc(dev, "Marvell Integrated RTC");  in mv_rtc_probe()
209 	sc->dev = dev;  in mv_rtc_attach()
210 	sc->rtc_type = ofw_bus_search_compatible(dev, mv_rtc_compat)->ocd_data;  in mv_rtc_attach()
212 	mtx_init(&sc->mutex, device_get_nameunit(dev), NULL, MTX_SPIN);  in mv_rtc_attach()
214 	ret = bus_alloc_resources(dev, res_spec, sc->res);  in mv_rtc_attach()
217 		mtx_destroy(&sc->mutex);  in mv_rtc_attach()
221 	switch (sc->rtc_type) {  in mv_rtc_attach()
229 		panic("Unknown RTC type: %d", sc->rtc_type);  in mv_rtc_attach()
243 	mtx_destroy(&sc->mutex);  in mv_rtc_detach()
245 	bus_release_resources(dev, res_spec, sc->res);  in mv_rtc_detach()
268 	} while ((val_check - val) > 1);  in mv_rtc_gettime()
272 	ts->tv_sec = val_check;  in mv_rtc_gettime()
273 	/* RTC resolution is 1 sec */  in mv_rtc_gettime()
274 	ts->tv_nsec = 0;  in mv_rtc_gettime()
286 	/* RTC resolution is 1 sec */  in mv_rtc_settime()
287 	if (ts->tv_nsec >= HALF_OF_SEC_NS)  in mv_rtc_settime()
288 		ts->tv_sec++;  in mv_rtc_settime()
289 	ts->tv_nsec = 0;  in mv_rtc_settime()
295 		/* RTC was not resetted yet */  in mv_rtc_settime()
300 	 * According to errata FE-3124064, Write to RTC TIME register  in mv_rtc_settime()
301 	 * may fail. As a workaround, before writing to RTC TIME register,  in mv_rtc_settime()
302 	 * issue a dummy write of 0x0 twice to RTC Status register.  in mv_rtc_settime()
306 	mv_rtc_reg_write(sc, RTC_TIME, ts->tv_sec);  in mv_rtc_settime()
316 	return (bus_read_4(sc->res[RTC_RES], off));  in mv_rtc_reg_read()
321  * register write to the RTC hard macro so that the required update
328 	bus_write_4(sc->res[RTC_RES], off, val);  in mv_rtc_reg_write()
339 	val = bus_read_4(sc->res[RTC_SOC_RES], A38X_RTC_BRIDGE_TIMING_CTRL);  in mv_rtc_configure_bus_a38x()
343 	bus_write_4(sc->res[RTC_SOC_RES], A38X_RTC_BRIDGE_TIMING_CTRL, val);  in mv_rtc_configure_bus_a38x()
351 	val = bus_read_4(sc->res[RTC_SOC_RES], A8K_RTC_BRIDGE_TIMING_CTRL0);  in mv_rtc_configure_bus_a8k()
355 	bus_write_4(sc->res[RTC_SOC_RES], A8K_RTC_BRIDGE_TIMING_CTRL1, val);  in mv_rtc_configure_bus_a8k()
357 	val = bus_read_4(sc->res[RTC_SOC_RES], A8K_RTC_BRIDGE_TIMING_CTRL0);  in mv_rtc_configure_bus_a8k()
360 	bus_write_4(sc->res[RTC_SOC_RES], A8K_RTC_BRIDGE_TIMING_CTRL1, val);  in mv_rtc_configure_bus_a8k()