1 /* SPDX-License-Identifier: Apache-2.0 */
8 #include <zephyr/drivers/watchdog.h>
9 #include <zephyr/logging/log.h>
10 #include <zephyr/sys_clock.h>
11 #include <zephyr/math/ilog2.h>
33 int dw_wdt_configure(const uint32_t base, const uint32_t config)  in dw_wdt_configure()  argument
39 		return -ENOTSUP;  in dw_wdt_configure()
45 	if (dw_wdt_dual_timeout_period_get(base)) {  in dw_wdt_configure()
46 		dw_wdt_timeout_period_init_set(base, period);  in dw_wdt_configure()
49 	dw_wdt_timeout_period_set(base, period);  in dw_wdt_configure()
52 	dw_wdt_enable(base);  in dw_wdt_configure()
53 	dw_wdt_counter_restart(base);  in dw_wdt_configure()
58 int dw_wdt_calc_period(const uint32_t base, const uint32_t clk_freq,  in dw_wdt_calc_period()  argument
65 	if (config->window.min) {  in dw_wdt_calc_period()
67 		return -ENOTSUP;  in dw_wdt_calc_period()
70 	period64 = (uint64_t)clk_freq * config->window.max;  in dw_wdt_calc_period()
74 		return -EINVAL;  in dw_wdt_calc_period()
77 	period = period64 - 1;  in dw_wdt_calc_period()
80 	if (period >= dw_wdt_cnt_width_get(base)) {  in dw_wdt_calc_period()
82 		return -EINVAL;  in dw_wdt_calc_period()
86 	*period_out = WDT_DW_FLAG_CONFIGURED | (period >= 15 ? period - 15 : 0);  in dw_wdt_calc_period()
90 int dw_wdt_probe(const uint32_t base, const uint32_t reset_pulse_length)  in dw_wdt_probe()  argument
93 	const uint32_t type = dw_wdt_comp_type_get(base);  in dw_wdt_probe()
97 		return -ENODEV;  in dw_wdt_probe()
100 	dw_wdt_reset_pulse_length_set(base, reset_pulse_length);  in dw_wdt_probe()