COEX (WIFI+BT) Enablement NXP IW416 SoC with RT1060EVKC Platform

drivers/bluetooth/hci/Kconfig.nxp

@@ -84,3 +84,19 @@ config BT_NXP_NW612
 	  radio-solution:IW612.
 
 endif # BT_H4_NXP_CTLR
+
+if (BT_NXP_NW612 && NXP_IW61X) || (BT_NXP_IW416 && NXP_IW416)
+
+config BT_NXP_CTRL_BSP_TRIGGER
+	bool "Trigger to Wakeup BSP enabled NXP BT CPU"
+	default y
+	select UART_LINE_CTRL
+	help
+		Enable/Disable Boot-Sleep-Patch(BSP) wakeup trigger for NXP BT IW414/NW612 BT FW.
+		In WIFI+BT Parallel FW Download, If FW is BSP enabled, Once WIFI CPU has valid
+		FW loaded (on CPU1), it puts BT CPU (CPU2) in Sleep due to which BT bootloader
+		stops sending out signature bytes for FW Load. To wakeup BT CPU from the sleep,
+		BT HCI UART RTS line needs to be de-asserted (high to low) before host hci-driver
+		begin FW load procedure on BT CPU.
+
+endif # BT_NXP_NW612 || BT_NXP_IW416

drivers/bluetooth/hci/hci_nxp_setup.c

@@ -1131,6 +1131,23 @@ static int bt_nxp_ctlr_init(void)
 #endif /* DT_NODE_HAS_PROP(DT_DRV_INST(0), w_disable_gpios) */
 #endif
 
+#ifdef CONFIG_BT_NXP_CTRL_BSP_TRIGGER
+	/* this feature sends boot-sleep-patch trigger to BT CPU to wake up
+	 * if BT CPU is put in sleep by WIFI CPU in coex (WIFI+BT) Scenario
+	 */
+	err = uart_line_ctrl_set(uart_dev, UART_LINE_CTRL_RTS, 0);
+	if (err) {
+		LOG_ERR("fail to set rts low, err %d", err);
+		return err;
+	}
+	k_sleep(K_MSEC(5));
+	err = uart_line_ctrl_set(uart_dev, UART_LINE_CTRL_RTS, 1);
+	if (err) {
+		LOG_ERR("fail to set rts high, err %d", err);
+		return err;
+	}
+	k_sleep(K_MSEC(5));
+#endif /*CONFIG_BT_NXP_CTRL_BSP_TRIGGER*/
 	uart_irq_rx_disable(uart_dev);
 	uart_irq_tx_disable(uart_dev);
 

drivers/wifi/nxp/nxp_wifi_drv.c

@@ -1,5 +1,5 @@
 /**
- * Copyright 2023-2024 NXP
+ * Copyright 2023-2025 NXP
  * SPDX-License-Identifier: Apache-2.0
  *
  * @file nxp_wifi_drv.c
@@ -372,6 +372,73 @@ int nxp_wifi_wlan_event_callback(enum wlan_event_reason reason, void *data)
 	return 0;
 }
 
+static int nxp_wifi_cpu_reset(uint8_t enable)
+{
+	int err = 0;
+#if DT_NODE_HAS_PROP(DT_DRV_INST(0), sd_gpios) &&    \
+	DT_NODE_HAS_PROP(DT_DRV_INST(0), pwr_gpios)
+
+	struct gpio_dt_spec sdio_reset = GPIO_DT_SPEC_GET(DT_DRV_INST(0), sd_gpios);
+	struct gpio_dt_spec pwr_gpios = GPIO_DT_SPEC_GET(DT_DRV_INST(0), pwr_gpios);
+
+	if (!gpio_is_ready_dt(&sdio_reset)) {
+		LOG_ERR("Error: failed to configure sdio_reset %s pin %d", sdio_reset.port->name,
+				sdio_reset.pin);
+		return -EIO;
+	}
+
+	/* Configure sdio_reset as output  */
+	err = gpio_pin_configure_dt(&sdio_reset, GPIO_OUTPUT);
+	if (err) {
+		LOG_ERR("Error %d: failed to configure sdio_reset %s pin %d", err,
+				sdio_reset.port->name, sdio_reset.pin);
+		return err;
+	}
+
+	if (!gpio_is_ready_dt(&pwr_gpios)) {
+		LOG_ERR("Error: failed to configure pwr_gpios %s pin %d", pwr_gpios.port->name,
+				pwr_gpios.pin);
+		return -EIO;
+	}
+
+	/* Configure wlan-power-io as an output  */
+	err = gpio_pin_configure_dt(&pwr_gpios, GPIO_OUTPUT);
+	if (err) {
+		LOG_ERR("Error %d: failed to configure pwr_gpios %s pin %d", err,
+				pwr_gpios.port->name, pwr_gpios.pin);
+		return err;
+	}
+
+	if (enable) {
+		err = gpio_pin_set_dt(&sdio_reset, 1);
+		if (err) {
+			return err;
+		}
+		/* wait for reset done */
+		k_sleep(K_MSEC(100));
+
+		err = gpio_pin_set_dt(&pwr_gpios, 1);
+		if (err) {
+			return err;
+		}
+	} else {
+		err = gpio_pin_set_dt(&sdio_reset, 0);
+		if (err) {
+			return err;
+		}
+
+		err = gpio_pin_set_dt(&pwr_gpios, 0);
+		if (err) {
+			return err;
+		}
+	}
+	/* wait for reset done */
+	k_sleep(K_MSEC(100));
+#endif
+
+	return err;
+}
+
 static int nxp_wifi_wlan_init(void)
 {
 	int status = NXP_WIFI_RET_SUCCESS;
@@ -385,7 +452,9 @@ static int nxp_wifi_wlan_init(void)
 		k_event_init(&s_nxp_wifi_SyncEvent);
 	}
 
-	if (status == NXP_WIFI_RET_SUCCESS) {
+	ret = nxp_wifi_cpu_reset(true);
+
+	if ((status == NXP_WIFI_RET_SUCCESS) && (ret == 0)) {
 		ret = wlan_init(wlan_fw_bin, wlan_fw_bin_len);
 		if (ret != WM_SUCCESS) {
 			status = NXP_WIFI_RET_FAIL;
@@ -403,6 +472,7 @@ static int nxp_wifi_wlan_init(void)
 	return 0;
 }
 
+
 static int nxp_wifi_wlan_start(void)
 {
 	int status = NXP_WIFI_RET_SUCCESS;

dts/bindings/bluetooth/nxp,bt-hci-uart.yaml

@@ -1,4 +1,4 @@
-# Copyright 2024 NXP
+# Copyright 2024-2025 NXP
 # SPDX-License-Identifier: Apache-2.0
 
 description: |
@@ -11,11 +11,17 @@ include: base.yaml
 properties:
   sdio-reset-gpios:
     type: phandle-array
-    required: true
+    description: |
+      sd-card io to reset standalone BT CPU/WLAN CPU. If not defined
+      Coex (WIFI + BT use case) overlay uses the same IO
+      for CPU reset to avoid BT CPU reset post WLAN init.
 
   w-disable-gpios:
     type: phandle-array
-    required: true
+    description: |
+      wlan-power io to reset standalone BT CPU/WLAN CPU. If not defined
+      Coex (WIFI + BT use case) overlay uses the same IO
+      for CPU reset to avoid BT CPU reset post WLAN init.
 
   hci-operation-speed:
     type: int

dts/bindings/wifi/nxp,wifi.yaml

@@ -1,4 +1,4 @@
-# Copyright 2023-2024 NXP
+# Copyright 2023-2025 NXP
 #
 # SPDX-License-Identifier: Apache-2.0
 
@@ -8,3 +8,20 @@ description: |
 compatible: "nxp,wifi"
 
 include: [sd-device.yaml, pinctrl-device.yaml]
+
+properties:
+  pwr-gpios:
+    type: phandle-array
+    description: |
+      Power pin
+      This pin defaults to active high when consumed by the wlan cpu power.
+      The property value should ensure the flags properly describe the signal
+      that is presented to the driver.
+
+  sd-gpios:
+    type: phandle-array
+    description: |
+      SDIO Reset pin
+      This pin defaults to active high when consumed by the SD card. The
+      property value should ensure the flags properly describe the signal
+      that is presented to the driver.

tests/bluetooth/shell/boards/coex_iw416_nw612_mimxrt1060_evkc.overlay

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2025 NXP
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+&m2_hci_bt_uart {
+	bt_hci_uart: bt_hci_uart {
+	 m2_bt_module: m2_bt_module {
+		/delete-property/ sdio-reset-gpios;
+		/delete-property/ w-disable-gpios;
+		};
+	};
+};
+
+&usdhc1 {
+	nxp_wifi {
+		pwr-gpios = <&gpio1 19 GPIO_ACTIVE_HIGH>;
+		sd-gpios = <&gpio1 24 GPIO_ACTIVE_HIGH>;
+	};
+};

tests/bluetooth/shell/overlay-wifi-nxp-rt-coex.conf

@@ -0,0 +1,118 @@
+##Optimized to support IW416, IW612 with RT1060EVKC
+
+#wifi
+CONFIG_EARLY_CONSOLE=y
+CONFIG_NETWORKING=y
+CONFIG_TEST_RANDOM_GENERATOR=y
+CONFIG_MAIN_STACK_SIZE=5200
+CONFIG_NET_TX_STACK_SIZE=2048
+CONFIG_NET_RX_STACK_SIZE=2048
+CONFIG_NET_MAX_CONTEXTS=10
+CONFIG_NET_DHCPV4=y
+CONFIG_NET_TCP=y
+CONFIG_NET_LOG=y
+CONFIG_INIT_STACKS=y
+CONFIG_NET_SHELL=y
+CONFIG_NET_STATISTICS=y
+CONFIG_NET_STATISTICS_PERIODIC_OUTPUT=n
+CONFIG_WIFI=y
+CONFIG_WIFI_LOG_LEVEL_ERR=y
+CONFIG_NET_L2_WIFI_SHELL=y
+# printing of scan results puts pressure on queues in new locking
+# design in net_mgmt. So, use a higher timeout for a crowded
+# environment.
+CONFIG_NET_MGMT_EVENT_QUEUE_TIMEOUT=5000
+CONFIG_NET_MGMT_EVENT_QUEUE_SIZE=20
+#board
+CONFIG_WIFI_NXP=y
+CONFIG_NXP_IW416=y
+#CONFIG_NXP_IW61X=y
+CONFIG_NXP_WIFI_SHELL=y
+CONFIG_NXP_IW416_MURATA_1XK_M2=y
+#CONFIG_NXP_IW612_MURATA_2EL_M2=y
+#
+# C Library
+#
+CONFIG_REQUIRES_FULL_LIBC=y
+CONFIG_CBPRINTF_FP_SUPPORT=y
+#CONFIG_IW416_MURATA_1XK_M2=y
+#firmware
+CONFIG_NXP_MONOLITHIC_WIFI=y
+#CONFIG_NXP_FW_LOADER=y
+# os
+CONFIG_THREAD_CUSTOM_DATA=y
+CONFIG_EVENTS=y
+CONFIG_SYS_HEAP_AUTO=y
+CONFIG_SCHED_MULTIQ=y
+CONFIG_ASSERT=y
+CONFIG_LOG_MODE_IMMEDIATE=y
+
+# shell @coex
+CONFIG_SHELL_CMD_BUFF_SIZE=512
+
+# net
+CONFIG_NET_L2_ETHERNET=y
+CONFIG_NET_DHCPV4_SERVER_ADDR_COUNT=32
+CONFIG_NET_IPV4=y
+CONFIG_NET_IPV6=y
+CONFIG_ETH_MCUX=n
+CONFIG_NET_ZPERF=y
+CONFIG_NET_ZPERF_MAX_PACKET_SIZE=1500
+CONFIG_ZPERF_WORK_Q_STACK_SIZE=4096
+CONFIG_NET_BUF_LOG=y
+CONFIG_NET_PKT_RX_COUNT=40
+CONFIG_NET_PKT_TX_COUNT=40
+CONFIG_NET_BUF_RX_COUNT=100
+CONFIG_NET_BUF_TX_COUNT=100
+CONFIG_NET_BUF_DATA_SIZE=1744
+CONFIG_NET_TC_TX_COUNT=1
+CONFIG_NET_TC_RX_COUNT=1
+#CONFIG_NET_MGMT_EVENT_QUEUE_SIZE=20
+CONFIG_NET_IF_MAX_IPV4_COUNT=4
+CONFIG_NET_IF_MAX_IPV6_COUNT=3
+CONFIG_DNS_RESOLVER=y
+CONFIG_DNS_RESOLVER_MAX_SERVERS=2
+CONFIG_NET_SOCKETS_POLL_MAX=14
+CONFIG_NET_ZPERF_MAX_SESSIONS=6
+CONFIG_NET_IPV4_FRAGMENT=y
+CONFIG_NET_IPV4_FRAGMENT_MAX_COUNT=3
+CONFIG_NET_IPV4_FRAGMENT_MAX_PKT=7
+CONFIG_NET_IPV4_FRAGMENT_TIMEOUT=3
+CONFIG_NET_IPV6_FRAGMENT=y
+CONFIG_NET_IPV6_FRAGMENT_MAX_COUNT=3
+CONFIG_NET_IPV6_FRAGMENT_MAX_PKT=8
+CONFIG_NET_IPV6_FRAGMENT_TIMEOUT=3
+CONFIG_NET_MAX_CONN=10
+CONFIG_NET_DHCPV4_SERVER_ICMP_PROBE_TIMEOUT=100
+CONFIG_ETH_DRIVER=n
+
+# net threads priority
+CONFIG_NET_TC_THREAD_PRIO_CUSTOM=y
+CONFIG_NET_TC_THREAD_PREEMPTIVE=y
+CONFIG_NET_TCP_WORKER_PRIO=-16
+CONFIG_NET_TC_TX_THREAD_BASE_PRIO=3
+CONFIG_NET_TC_RX_THREAD_BASE_PRIO=3
+CONFIG_ZPERF_WORK_Q_THREAD_PRIORITY=3
+CONFIG_NET_SOCKETS_SERVICE_THREAD_PRIO=3
+CONFIG_NET_TC_SKIP_FOR_HIGH_PRIO=y
+CONFIG_NET_CONTEXT_PRIORITY=y
+CONFIG_NET_MGMT_THREAD_PRIO_CUSTOM=y
+CONFIG_NET_MGMT_THREAD_PRIORITY=3
+CONFIG_IDLE_STACK_SIZE=2048
+
+# power management
+CONFIG_PM_LOG_LEVEL_OFF=y
+#CONFIG_IDLE_STACK_SIZE=2048
+
+# stack size
+CONFIG_SHELL_STACK_SIZE=6144
+CONFIG_SYSTEM_WORKQUEUE_STACK_SIZE=4096
+CONFIG_NET_MGMT_EVENT_STACK_SIZE=4608
+CONFIG_NET_TCP_WORKQ_STACK_SIZE=2048
+#CONFIG_MAIN_STACK_SIZE=4096 @wifi
+CONFIG_NET_SOCKETS_SERVICE_STACK_SIZE=4096
+# optimization level
+# refer to Kconfig.zephyr for Optimizations Level
+CONFIG_SPEED_OPTIMIZATIONS=y
+# comment out for -O0
+CONFIG_CODE_DATA_RELOCATION_SRAM=y

west.yml

@@ -203,7 +203,7 @@ manifest:
       groups:
         - hal
     - name: hal_nxp
-      revision: 9dc7449014a7380355612453b31be479cb3a6833
+      revision: pull/512/head
       path: modules/hal/nxp
       groups:
         - hal