diff --git a/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c b/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
index f96f435142..36b11d4729 100644
--- a/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
+++ b/components/bt/host/nimble/esp-hci/src/esp_nimble_hci.c
@@ -14,6 +14,7 @@
 #include "nimble/nimble_port_freertos.h"
 #include "esp_nimble_hci.h"
 #include "esp_nimble_mem.h"
+#include "bt_osi_mem.h"
 #include "esp_bt.h"
 #include "freertos/semphr.h"
 #include "esp_compiler.h"
diff --git a/components/bt/host/nimble/port/include/esp_nimble_cfg.h b/components/bt/host/nimble/port/include/esp_nimble_cfg.h
index 095b044819..6c3a53c872 100644
--- a/components/bt/host/nimble/port/include/esp_nimble_cfg.h
+++ b/components/bt/host/nimble/port/include/esp_nimble_cfg.h
@@ -22,31 +22,6 @@
 #define IRAM_ATTR_64MCPU IRAM_ATTR
 #endif
 
-#define BLE_LL_CTRL_PROC_TIMEOUT_MS_N   (40000) /* ms */
-
-#define BLE_LL_CFG_NUM_HCI_CMD_PKTS_N   (1)
-
-#define BLE_LL_SCHED_ADV_MAX_USECS_N    (852)
-
-#define BLE_LL_SCHED_DIRECT_ADV_MAX_USECS_N (502)
-
-#define BLE_LL_SCHED_MAX_ADV_PDU_USECS_N    (376)
-
-#define BLE_LL_SUB_VERS_NR_N                (0x0000)
-
-#define BLE_LL_JITTER_USECS_N               (16)
-
-#define BLE_PHY_MAX_PWR_DBM_N               (10)
-
-#define BLE_LL_CONN_DEF_AUTH_PYLD_TMO_N     (3000)
-
-#if CONFIG_IDF_TARGET_ESP32H2
-#define RTC_FREQ_N                          (32768) /* in Hz */
-#else
-#define RTC_FREQ_N                          (32000) /* in Hz */
-#endif
-
-#define BLE_LL_TX_PWR_DBM_N                 (0)
 
 #if CONFIG_IDF_TARGET_ESP32 || CONFIG_IDF_TARGET_ESP32C3 || CONFIG_IDF_TARGET_ESP32S3
 #define NIMBLE_CFG_CONTROLLER    0
@@ -1594,18 +1569,6 @@
 #define MYNEWT_VAL_BLE_HCI_UART_STOP_BITS (1)
 #endif
 
-#ifndef CONFIG_BLE_TX_CCA_ENABLED
-#define MYNEWT_VAL_BLE_TX_CCA_ENABLED   (0)
-#else
-#define MYNEWT_VAL_BLE_TX_CCA_ENABLED   (CONFIG_BLE_TX_CCA_ENABLED)
-#endif
-
-#ifndef CONFIG_BLE_CCA_RSSI_THRESH
-#define MYNEWT_VAL_BLE_CCA_RSSI_THRESH   (50)
-#else
-#define MYNEWT_VAL_BLE_CCA_RSSI_THRESH   (CONFIG_BLE_CCA_RSSI_THRESH)
-#endif
-
 
 #ifndef MYNEWT_VAL_NEWT_FEATURE_LOGCFG
 #define MYNEWT_VAL_NEWT_FEATURE_LOGCFG (1)
diff --git a/components/bt/host/nimble/port/include/esp_nimble_main.h b/components/bt/host/nimble/port/include/esp_nimble_main.h
new file mode 100644
index 0000000000..3a760d5985
--- /dev/null
+++ b/components/bt/host/nimble/port/include/esp_nimble_main.h
@@ -0,0 +1,15 @@
+/*
+ * SPDX-FileCopyrightText: 2021-2022 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "esp_err.h"
+
+esp_err_t esp_nimble_init();
+
+esp_err_t esp_nimble_enable(void *host_task);
+
+esp_err_t esp_nimble_disable();
+
+esp_err_t esp_nimble_deinit();
diff --git a/components/bt/host/nimble/port/include/esp_nimble_mem.h b/components/bt/host/nimble/port/include/esp_nimble_mem.h
index 9a89c12b26..0b5e5aae74 100644
--- a/components/bt/host/nimble/port/include/esp_nimble_mem.h
+++ b/components/bt/host/nimble/port/include/esp_nimble_mem.h
@@ -13,9 +13,12 @@
 extern "C" {
 #endif
 
-void *nimble_platform_mem_malloc(size_t size);
-void *nimble_platform_mem_calloc(size_t n, size_t size);
-void nimble_platform_mem_free(void *ptr);
+// #pragma message "This file should be replaced with bt_osi_mem.h, used here for compatibility"
+
+#include "bt_osi_mem.h"
+#define nimble_platform_mem_malloc bt_osi_mem_malloc
+#define nimble_platform_mem_calloc bt_osi_mem_calloc
+#define nimble_platform_mem_free bt_osi_mem_free
 
 #ifdef __cplusplus
 }
diff --git a/components/bt/host/nimble/port/src/esp_nimble_main.c b/components/bt/host/nimble/port/src/esp_nimble_main.c
new file mode 100644
index 0000000000..1e3e75f8d3
--- /dev/null
+++ b/components/bt/host/nimble/port/src/esp_nimble_main.c
@@ -0,0 +1,100 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "esp_attr.h"
+#include "esp_heap_caps.h"
+#include "sdkconfig.h"
+#include "esp_nimble_mem.h"
+#include "host/ble_hs.h"
+
+static TaskHandle_t host_task_h;
+
+extern void ble_hs_deinit(void);
+static struct ble_hs_stop_listener stop_listener;
+
+static struct ble_npl_eventq g_eventq_dflt;
+static struct ble_npl_sem ble_hs_stop_sem;
+static struct ble_npl_event ble_hs_ev_stop;
+
+esp_err_t esp_nimble_init()
+{
+#if !SOC_ESP_NIMBLE_CONTROLLER
+    /* Initialize the function pointers for OS porting */
+    npl_freertos_funcs_init();
+
+    npl_freertos_mempool_init();
+
+    /* Initialize default event queue */
+
+    ble_npl_eventq_init(&g_eventq_dflt);
+
+
+    os_msys_init();
+
+    void ble_store_ram_init(void); // Do we need this?
+    /* XXX Need to have template for store */
+    ble_store_ram_init();
+#endif
+
+    /* Initialize the host */
+    ble_hs_init();
+    return ESP_OK;
+}
+
+esp_err_t esp_nimble_enable(void *host_task)
+{
+    /*
+     * Create task where NimBLE host will run. It is not strictly necessary to
+     * have separate task for NimBLE host, but since something needs to handle
+     * default queue it is just easier to make separate task which does this.
+     */
+    xTaskCreatePinnedToCore(host_task, "nimble_host", NIMBLE_HS_STACK_SIZE,
+                            NULL, (configMAX_PRIORITIES - 4), &host_task_h, NIMBLE_CORE);
+    return ESP_OK;
+
+}
+
+esp_err_t esp_nimble_disable()
+{
+    esp_err_t err = ESP_OK;
+    ble_npl_sem_init(&ble_hs_stop_sem, 0);
+
+    /* Initiate a host stop procedure. */
+    rc = ble_hs_stop(&stop_listener, ble_hs_stop_cb,
+                     NULL);
+    if (rc != 0) {
+        ble_npl_sem_deinit(&ble_hs_stop_sem);
+        return rc;
+    }
+
+    /* Wait till the host stop procedure is complete */
+    ble_npl_sem_pend(&ble_hs_stop_sem, BLE_NPL_TIME_FOREVER);
+
+    ble_npl_event_init(&ble_hs_ev_stop, nimble_port_stop_cb,
+                       NULL);
+    ble_npl_eventq_put(&g_eventq_dflt, &ble_hs_ev_stop);
+
+    /* Wait till the event is serviced */
+    ble_npl_sem_pend(&ble_hs_stop_sem, BLE_NPL_TIME_FOREVER);
+
+    ble_npl_sem_deinit(&ble_hs_stop_sem);
+
+    return ESP_OK;
+
+}
+
+esp_err_t esp_nimble_deinit()
+{
+#if !(SOC_ESP_NIMBLE_CONTROLLER && CONFIG_BT_CONTROLLER_ENABLED)
+    ble_npl_eventq_deinit(&g_eventq_dflt);
+#endif
+
+    if (host_task_h) {
+        vTaskDelete(host_task_h);
+    }
+    ble_hs_deinit();
+    return ESP_OK;
+}
diff --git a/components/bt/host/nimble/port/src/esp_nimble_mem.c b/components/bt/host/nimble/port/src/esp_nimble_mem.c
deleted file mode 100644
index bc62b57634..0000000000
--- a/components/bt/host/nimble/port/src/esp_nimble_mem.c
+++ /dev/null
@@ -1,41 +0,0 @@
-/*
- * SPDX-FileCopyrightText: 2015-2021 Espressif Systems (Shanghai) CO LTD
- *
- * SPDX-License-Identifier: Apache-2.0
- */
-
-#include "esp_attr.h"
-#include "esp_heap_caps.h"
-#include "sdkconfig.h"
-#include "esp_nimble_mem.h"
-
-IRAM_ATTR void *nimble_platform_mem_malloc(size_t size)
-{
-#ifdef CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
-    return heap_caps_malloc(size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
-#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
-    return heap_caps_malloc(size, MALLOC_CAP_SPIRAM|MALLOC_CAP_8BIT);
-#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
-    return heap_caps_malloc_prefer(size, 2, MALLOC_CAP_INTERNAL|MALLOC_CAP_IRAM_8BIT, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
-#else
-    return malloc(size);
-#endif
-}
-
-IRAM_ATTR void *nimble_platform_mem_calloc(size_t n, size_t size)
-{
-#ifdef CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_INTERNAL
-    return heap_caps_calloc(n, size, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
-#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_EXTERNAL
-    return heap_caps_calloc(n, size, MALLOC_CAP_SPIRAM|MALLOC_CAP_8BIT);
-#elif CONFIG_BT_NIMBLE_MEM_ALLOC_MODE_IRAM_8BIT
-    return heap_caps_calloc_prefer(n, size, 2, MALLOC_CAP_INTERNAL|MALLOC_CAP_IRAM_8BIT, MALLOC_CAP_INTERNAL|MALLOC_CAP_8BIT);
-#else
-    return calloc(n, size);
-#endif
-}
-
-IRAM_ATTR void nimble_platform_mem_free(void *ptr)
-{
-    heap_caps_free(ptr);
-}