1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
28 #include <sys/param.h>
29 #include <sys/systm.h>
30 #include <sys/bus.h>
32 #include <sys/kernel.h>
33 #include <sys/module.h>
34 #include <sys/rman.h>
35 #include <sys/lock.h>
36 #include <sys/mutex.h>
37 #include <sys/sysctl.h>
42 #include <dev/syscon/syscon.h>
49 #define	CONTROL0		0	/* Offset in config->regs[] array */
61 #define	CONTROL1		1	/* Offset in config->regs[] array */
66 #define	STATUS			2	/* Offset in config->regs[] array */
87 	struct syscon		*syscon;  member
99 	.calib_add = -150000,
116 	{"marvell,armada-ap806-thermal", (uintptr_t) &mv_ap806_config},
117 	{"marvell,armada-cp110-thermal", (uintptr_t) &mv_cp110_config},
122     SYSCON_READ_4((sc)->syscon, sc->config->regs[reg])
124 	SYSCON_WRITE_4((sc)->syscon, sc->config->regs[reg], (val))
130 	shift = 31 - index;  in sign_extend()
141 	while (--timeout > 0) {  in mv_thermal_wait_sensor()
143 		if ((reg & sc->config->valid_mask) == sc->config->valid_mask)  in mv_thermal_wait_sensor()
159 	if (sc->cur_sensor == sensor)  in mv_thermal_select_sensor()
179 		reg |= (sensor - 1) << CONTROL0_CHANNEL_SHIFT;  in mv_thermal_select_sensor()
182 	sc->cur_sensor = sensor;  in mv_thermal_select_sensor()
204 	if (sc->config->signed_value)  in mv_thermal_read_sensor()
205 		sample = sign_extend(reg, fls(STATUS_TEMP_MASK) - 1);  in mv_thermal_read_sensor()
209 	*temp = ((sample * sc->config->calib_mul) - sc->config->calib_add) /  in mv_thermal_read_sensor()
210 		sc->config->calib_div;  in mv_thermal_read_sensor()
263 	mtx_lock(&(sc)->mtx);  in mv_thermal_sysctl()
272 	mtx_unlock(&(sc)->mtx);  in mv_thermal_sysctl()
283 	if (ofw_bus_search_compatible(dev, compat_data)->ocd_data == 0)  in mv_thermal_probe()
301 	sc->dev = dev;  in mv_thermal_attach()
303 	sc->config = (struct mv_thermal_config *)  in mv_thermal_attach()
304 	    ofw_bus_search_compatible(dev, compat_data)->ocd_data;  in mv_thermal_attach()
306 	mtx_init(&sc->mtx, device_get_nameunit(dev), NULL, MTX_DEF);  in mv_thermal_attach()
308 	if (SYSCON_GET_HANDLE(sc->dev, &sc->syscon) != 0 ||  in mv_thermal_attach()
309 	    sc->syscon == NULL) {  in mv_thermal_attach()
310 		device_printf(dev, "cannot get syscon for device\n");  in mv_thermal_attach()
314 	sc->cur_sensor = -1;  in mv_thermal_attach()
315 	switch (sc->config->type) {  in mv_thermal_attach()
333 	for (i = 0; i < sc->config->ncpus; i++) {  in mv_thermal_attach()