1 /*
2  * Copyright (c) 2023 Pawel Osypiuk <pawelosyp@gmail.com>
3  *
4  * SPDX-License-Identifier: Apache-2.0
5  */
6 
7 #include <soc.h>
8 #include <zephyr/device.h>
9 #include <zephyr/devicetree.h>
10 #include <nrf53_cpunet_mgmt.h>
11 #include <../subsys/bluetooth/controller/ll_sw/nordic/hal/nrf5/debug.h>
12 
13 #include <hal/nrf_spu.h>
14 
15 #define LOG_LEVEL CONFIG_BT_HCI_DRIVER_LOG_LEVEL
16 #include <zephyr/logging/log.h>
17 LOG_MODULE_REGISTER(bt_hci_nrf53_support);
18 
bt_hci_transport_teardown(const struct device * dev)19 int bt_hci_transport_teardown(const struct device *dev)
20 {
21 	ARG_UNUSED(dev);
22     /* Put the Network MCU in Forced-OFF mode. */
23 	nrf53_cpunet_enable(false);
24 	LOG_DBG("Network MCU placed in Forced-OFF mode");
25 
26 	return 0;
27 }
28 
bt_hci_transport_setup(const struct device * dev)29 int bt_hci_transport_setup(const struct device *dev)
30 {
31 	ARG_UNUSED(dev);
32 
33 	/* Route Bluetooth Controller Debug Pins */
34 	DEBUG_SETUP();
35 
36 #if !defined(CONFIG_TRUSTED_EXECUTION_NONSECURE)
37 	/* Retain nRF5340 Network MCU in Secure domain (bus
38 	 * accesses by Network MCU will have Secure attribute set).
39 	 */
40 	nrf_spu_extdomain_set((NRF_SPU_Type *)DT_REG_ADDR(DT_NODELABEL(spu)), 0, true, false);
41 #endif /* !defined(CONFIG_TRUSTED_EXECUTION_NONSECURE) */
42 
43 	/* Release the Network MCU, 'Release force off signal' */
44 	nrf53_cpunet_enable(true);
45 
46 	return 0;
47 }
48