4  * SPDX-License-Identifier: Apache-2.0
44 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_is_enabled()
46 	return litex_read8(config->control_addr) & BIT(0);  in wdt_litex_is_enabled()
51 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_irq_enable()
52 	struct wdt_litex_data *data = dev->data;  in wdt_litex_irq_enable()
54 	if (!data->callback) {  in wdt_litex_irq_enable()
58 	litex_write8(BIT(0), config->ev_pending_addr);  in wdt_litex_irq_enable()
60 	litex_write8(BIT(0), config->ev_enable_addr);  in wdt_litex_irq_enable()
65 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_enable()
66 	struct wdt_litex_data *data = dev->data;  in wdt_litex_enable()
69 	if (config->cycles_size <= 4) {  in wdt_litex_enable()
70 		litex_write32(k_ms_to_cyc_floor32(data->timeout), config->cycles_addr);  in wdt_litex_enable()
72 		litex_write64(k_ms_to_cyc_floor64(data->timeout), config->cycles_addr);  in wdt_litex_enable()
77 	if (data->reset_soc_mode) {  in wdt_litex_enable()
80 	if (data->pause_halted) {  in wdt_litex_enable()
84 	litex_write32(control, config->control_addr);  in wdt_litex_enable()
91 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_disable()
93 	litex_write8(0, config->ev_enable_addr);  in wdt_litex_disable()
96 		return -EFAULT;  in wdt_litex_disable()
98 	litex_write16(CONTROL_ENABLE_BIT, config->control_addr);  in wdt_litex_disable()
105 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_feed()
108 		return -EINVAL;  in wdt_litex_feed()
111 	litex_write8(CONTROL_FEED_BIT, config->control_addr);  in wdt_litex_feed()
118 	struct wdt_litex_data *data = dev->data;  in wdt_litex_setup()
120 	data->pause_halted = !!(options & WDT_OPT_PAUSE_HALTED_BY_DBG);  in wdt_litex_setup()
123 		return -ENOTSUP;  in wdt_litex_setup()
127 		return -EBUSY;  in wdt_litex_setup()
138 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_install_timeout()
139 	struct wdt_litex_data *data = dev->data;  in wdt_litex_install_timeout()
141 	if (cfg->window.min != 0U || cfg->window.max == 0U) {  in wdt_litex_install_timeout()
142 		return -EINVAL;  in wdt_litex_install_timeout()
145 	if (cfg->window.max > (config->cycles_size <= 4 ? k_cyc_to_ms_floor32(UINT32_MAX)  in wdt_litex_install_timeout()
147 		return -EINVAL;  in wdt_litex_install_timeout()
151 		return -EBUSY;  in wdt_litex_install_timeout()
154 	data->timeout = cfg->window.max;  in wdt_litex_install_timeout()
155 	data->callback = cfg->callback;  in wdt_litex_install_timeout()
157 	/* Set mode of watchdog and callback */  in wdt_litex_install_timeout()
158 	switch (cfg->flags) {  in wdt_litex_install_timeout()
160 		LOG_DBG("Configuring reset SOC mode");  in wdt_litex_install_timeout()
161 		data->reset_soc_mode = true;  in wdt_litex_install_timeout()
165 		LOG_DBG("Configuring non-reset mode");  in wdt_litex_install_timeout()
166 		data->reset_soc_mode = false;  in wdt_litex_install_timeout()
171 		return -EINVAL;  in wdt_litex_install_timeout()
180 	const struct wdt_litex_config *config = dev->config;  in wdt_litex_isr()
181 	struct wdt_litex_data *data = dev->data;  in wdt_litex_isr()
184 	if (data->callback) {  in wdt_litex_isr()
185 		data->callback(dev, 0);  in wdt_litex_isr()
188 	litex_write8(BIT(0), config->ev_pending_addr);  in wdt_litex_isr()
195 	const struct wdt_litex_config *const config = dev->config;  in wdt_litex_init()
197 	config->irq_cfg_func();  in wdt_litex_init()