add presets and new radio config

CMakePresets.json

@@ -0,0 +1,37 @@
+{
+    "version": 2,
+    "cmakeMinimumRequired": {
+        "major": 3,
+        "minor": 20
+    },
+    "configurePresets": [
+        {
+            "name": "build_bl54_radio0",
+            "displayName": "Build for nRF54l15 DK nRF54l15 Application",
+            "generator": "Ninja",
+            "binaryDir": "${sourceDir}/build_bl54_radio0",
+            "cacheVariables": {
+                "NCS_TOOLCHAIN_VERSION": "NONE",
+                "BOARD": "nrf54l15dk/nrf54l15/cpuapp",
+                "EXTRA_CONF_FILE": "iso.conf;internal_osc.conf",
+                "CONF_FILE": "prj.conf",
+                "DTC_OVERLAY_FILE": "bl54l15_radio0_new.overlay",
+                "BOARD_ROOT": "${sourceDir}/"
+            }
+        },
+        {
+            "name": "build_bl54_radio1",
+            "displayName": "Build for nRF54l15 DK nRF54l15 Application",
+            "generator": "Ninja",
+            "binaryDir": "${sourceDir}/build_bl54_radio1",
+            "cacheVariables": {
+                "NCS_TOOLCHAIN_VERSION": "NONE",
+                "BOARD": "nrf54l15dk/nrf54l15/cpuapp",
+                "EXTRA_CONF_FILE": "iso.conf;internal_osc.conf",
+                "CONF_FILE": "prj.conf",
+                "DTC_OVERLAY_FILE": "bl54l15_radio1.overlay",
+                "BOARD_ROOT": "${sourceDir}/"
+            }
+        }
+    ]
+}

bl54l15_radio0_new.overlay

@@ -0,0 +1,44 @@
+&uart20 {
+    compatible = "nordic,nrf-uarte";
+    status = "okay";
+    current-speed = <1000000>;
+    hw-flow-control;
+};
+
+
+&pinctrl {
+	uart20_default: uart20_default {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 5)>,
+				<NRF_PSEL(UART_RTS, 1, 4)>;
+		};
+		group2 {
+			psels = <NRF_PSEL(UART_RX, 1, 7)>,
+				<NRF_PSEL(UART_CTS, 1, 6)>;
+			bias-pull-up;
+		};
+	};
+
+	uart20_sleep: uart20_sleep {
+		group1 {
+			psels = <NRF_PSEL(UART_TX, 1, 5)>,
+				<NRF_PSEL(UART_RX, 1, 4)>,
+				<NRF_PSEL(UART_RTS, 1, 7)>,
+				<NRF_PSEL(UART_CTS, 1, 6)>;
+			low-power-enable;
+		};
+	};
+};
+
+/ {
+	chosen {
+        //zephyr,console = &uart20;
+		//zephyr,shell-uart = &uart20;
+		//zephyr,uart-mcumgr = &uart0;
+		//zephyr,bt-mon-uart = &uart0;
+		zephyr,bt-c2h-uart = &uart20;
+	};
+};
+&power {
+    status = "okay";
+};

hci.code-workspace

@@ -0,0 +1,11 @@
+{
+	"folders": [
+		{
+			"path": "../echo_bot"
+		},
+		{
+			"path": "."
+		}
+	],
+	"settings": {}
+}