1 /*-
49 #define	READ(_sc, _r) bus_read_4((_sc)->res, (_r))
50 #define	WRITE(_sc, _r, _v) bus_write_4((_sc)->res, (_r), (_v))
117 	{"allwinner,sun4i-a10-wdt", A10_WATCHDOG},
118 	{"allwinner,sun6i-a31-wdt", A31_WATCHDOG},
119 	{"allwinner,sun20i-d1-wdt", D1_WATCHDOG},
132 	switch (ofw_bus_search_compatible(dev, compat_data)->ocd_data) {  in aw_wdog_probe()
156 	sc->dev = dev;  in aw_wdog_attach()
159 	sc->res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);  in aw_wdog_attach()
160 	if (sc->res == NULL) {  in aw_wdog_attach()
167 	switch (ofw_bus_search_compatible(dev, compat_data)->ocd_data) {  in aw_wdog_attach()
169 		sc->wdog_ctrl = A10_WDOG_CTRL;  in aw_wdog_attach()
170 		sc->wdog_mode = A10_WDOG_MODE;  in aw_wdog_attach()
171 		sc->wdog_mode_key = 0;  in aw_wdog_attach()
172 		sc->wdog_mode_intvl_shift = A10_WDOG_MODE_INTVL_SHIFT;  in aw_wdog_attach()
173 		sc->wdog_mode_en = A10_WDOG_MODE_RST_EN | WDOG_MODE_EN;  in aw_wdog_attach()
176 		sc->wdog_ctrl = A31_WDOG_CTRL;  in aw_wdog_attach()
177 		sc->wdog_ctrl_key = A31_WDOG_CTRL_KEY;  in aw_wdog_attach()
178 		sc->wdog_mode = A31_WDOG_MODE;  in aw_wdog_attach()
179 		sc->wdog_mode_key = 0;  in aw_wdog_attach()
180 		sc->wdog_mode_intvl_shift = A31_WDOG_MODE_INTVL_SHIFT;  in aw_wdog_attach()
181 		sc->wdog_mode_en = WDOG_MODE_EN;  in aw_wdog_attach()
182 		sc->wdog_config = A31_WDOG_CONFIG;  in aw_wdog_attach()
183 		sc->wdog_config_value = A31_WDOG_CONFIG_RST_EN_SYSTEM;  in aw_wdog_attach()
186 		sc->wdog_ctrl = D1_WDOG_CTRL;  in aw_wdog_attach()
187 		sc->wdog_ctrl_key = D1_WDOG_CTRL_KEY;  in aw_wdog_attach()
188 		sc->wdog_mode = D1_WDOG_MODE;  in aw_wdog_attach()
189 		sc->wdog_mode_key = D1_WDOG_MODE_KEY;  in aw_wdog_attach()
190 		sc->wdog_mode_intvl_shift = D1_WDOG_MODE_INTVL_SHIFT;  in aw_wdog_attach()
191 		sc->wdog_mode_en = WDOG_MODE_EN;  in aw_wdog_attach()
192 		sc->wdog_config = D1_WDOG_CONFIG;  in aw_wdog_attach()
193 		sc->wdog_config_value = D1_WDOG_CONFIG_KEY | D1_WDOG_CONFIG_RST_EN_SYSTEM;  in aw_wdog_attach()
196 		bus_release_resource(dev, SYS_RES_MEMORY, rid, sc->res);  in aw_wdog_attach()
200 	mtx_init(&sc->mtx, "AW Watchdog", "aw_wdog", MTX_DEF);  in aw_wdog_attach()
203 	    SHUTDOWN_PRI_LAST - 1);  in aw_wdog_attach()
206 	WRITE(sc, sc->wdog_mode, sc->wdog_mode_key);  in aw_wdog_attach()
212 aw_wdog_watchdog_fn(void *private, u_int cmd, int *error)  in aw_wdog_watchdog_fn()  argument
215 	uint64_t ms;  in aw_wdog_watchdog_fn()  local
219 	mtx_lock(&sc->mtx);  in aw_wdog_watchdog_fn()
221 	cmd &= WD_INTERVAL;  in aw_wdog_watchdog_fn()
223 	if (cmd > 0) {  in aw_wdog_watchdog_fn()
224 		ms = ((uint64_t)1 << (cmd & WD_INTERVAL)) / 1000000;  in aw_wdog_watchdog_fn()
227 		    (ms > wd_intervals[i].milliseconds))  in aw_wdog_watchdog_fn()
230 			WRITE(sc, sc->wdog_mode, sc->wdog_mode_key |  in aw_wdog_watchdog_fn()
231 			  (wd_intervals[i].value << sc->wdog_mode_intvl_shift) |  in aw_wdog_watchdog_fn()
232 			    sc->wdog_mode_en);  in aw_wdog_watchdog_fn()
233 			WRITE(sc, sc->wdog_ctrl,  in aw_wdog_watchdog_fn()
234 			    WDOG_CTRL_RESTART | sc->wdog_ctrl_key);  in aw_wdog_watchdog_fn()
235 			if (sc->wdog_config)  in aw_wdog_watchdog_fn()
236 				WRITE(sc, sc->wdog_config,  in aw_wdog_watchdog_fn()
237 				    sc->wdog_config_value);  in aw_wdog_watchdog_fn()
245 			device_printf(sc->dev,  in aw_wdog_watchdog_fn()
246 			    "Can't arm, timeout is more than 16 sec\n");  in aw_wdog_watchdog_fn()
247 			mtx_unlock(&sc->mtx);  in aw_wdog_watchdog_fn()
248 			WRITE(sc, sc->wdog_mode, sc->wdog_mode_key);  in aw_wdog_watchdog_fn()
253 		WRITE(sc, sc->wdog_mode, sc->wdog_mode_key);  in aw_wdog_watchdog_fn()
255 	mtx_unlock(&sc->mtx);  in aw_wdog_watchdog_fn()
274 	WRITE(aw_wdog_sc, aw_wdog_sc->wdog_mode, aw_wdog_sc->wdog_mode_key |  in aw_wdog_watchdog_reset()
275 	    (wd_intervals[0].value << aw_wdog_sc->wdog_mode_intvl_shift) |  in aw_wdog_watchdog_reset()
276 	    aw_wdog_sc->wdog_mode_en);  in aw_wdog_watchdog_reset()
277 	if (aw_wdog_sc->wdog_config)  in aw_wdog_watchdog_reset()
278 		WRITE(aw_wdog_sc, aw_wdog_sc->wdog_config,  in aw_wdog_watchdog_reset()
279 		      aw_wdog_sc->wdog_config_value);  in aw_wdog_watchdog_reset()
280 	WRITE(aw_wdog_sc, aw_wdog_sc->wdog_ctrl,  in aw_wdog_watchdog_reset()
281 	    WDOG_CTRL_RESTART | aw_wdog_sc->wdog_ctrl_key);  in aw_wdog_watchdog_reset()