soc: nrf53: Port nrf53_cpunet_mgmt_init to soc_early_init_hook

Port from SYS_INIT to soc_early_init_hook because SYS_INIT is legacy.

Signed-off-by: Sebastian Bøe <[email protected]>

Author: SebastianBoe

soc/nordic/nrf53/nrf53_cpunet_mgmt.c

@@ -67,7 +67,7 @@ static void onoff_stop(struct onoff_manager *mgr, onoff_notify_fn notify)
 	notify(mgr, 0);
 }
 
-static int nrf53_cpunet_mgmt_init(void)
+int nrf53_cpunet_mgmt_init(void)
 {
 	static const struct onoff_transitions transitions = {
 		.start = onoff_start,
@@ -77,8 +77,6 @@ static int nrf53_cpunet_mgmt_init(void)
 	return onoff_manager_init(&cpunet_mgr, &transitions);
 }
 
-SYS_INIT(nrf53_cpunet_mgmt_init, PRE_KERNEL_1, 0);
-
 void nrf53_cpunet_enable(bool on)
 {
 	int ret;

soc/nordic/nrf53/nrf53_cpunet_mgmt.h

@@ -33,4 +33,22 @@ void nrf53_cpunet_enable(bool on);
  */
 void nrf53_cpunet_init(void);
 
+/**
+ * @brief Initialize the CPU network management system for the nRF5340.
+ *
+ * This function sets up an on-off manager for managing the network core of the nRF5340.
+ * It configures the necessary transitions for starting and stopping the network core.
+ *
+ * The function also ensures proper handling of GPIO pin forwarding when the
+ * `CONFIG_SOC_NRF_GPIO_FORWARDER_FOR_NRF5340` configuration is enabled. Pins are
+ * forwarded to the network core during startup and reassigned to the application
+ * core during shutdown.
+ *
+ * @return 0 on success, or a negative error code on failure.
+ *
+ * @note This function relies on the `onoff_manager` API to manage the start and stop
+ * transitions for the network core.
+ */
+int nrf53_cpunet_mgmt_init(void);
+
 #endif /* NRF53_CPUNET_MGMT_H__ */

soc/nordic/nrf53/soc.c

@@ -553,6 +553,13 @@ void soc_early_init_hook(void)
 #if defined(CONFIG_SOC_DCDC_NRF53X_HV) || DT_NODE_HAS_STATUS_OKAY(DT_NODELABEL(vregh))
 	nrf_regulators_vreg_enable_set(NRF_REGULATORS, NRF_REGULATORS_VREG_HIGH, true);
 #endif
+
+#if defined(CONFIG_SOC_NRF53_CPUNET_MGMT)
+	int err = nrf53_cpunet_mgmt_init();
+
+	__ASSERT_NO_MSG(err == 0);
+	(void)err;
+#endif
 }
 
 void soc_late_init_hook(void)