gustavonihei commented on a change in pull request #3881:
URL: https://github.com/apache/incubator-nuttx/pull/3881#discussion_r651971693



##########
File path: arch/risc-v/src/esp32c3/esp32c3_efuse.h
##########
@@ -0,0 +1,189 @@
+/****************************************************************************
+ * arch/risc-v/src/esp32c3/esp32c3_efuse.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/efuse/efuse.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* Type of eFuse blocks for ESP32C3 */
+
+typedef enum
+{
+    EFUSE_BLK0                 = 0,   /**< Number of eFuse BLOCK0. REPEAT_DATA 
*/
+
+    EFUSE_BLK1                 = 1,   /**< Number of eFuse BLOCK1. 
MAC_SPI_8M_SYS */
+
+    EFUSE_BLK2                 = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+    EFUSE_BLK_SYS_DATA_PART1   = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+
+    EFUSE_BLK3                 = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+    EFUSE_BLK_USER_DATA        = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+
+    EFUSE_BLK4                 = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+    EFUSE_BLK_KEY0             = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+
+    EFUSE_BLK5                 = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+    EFUSE_BLK_KEY1             = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+
+    EFUSE_BLK6                 = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+    EFUSE_BLK_KEY2             = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+
+    EFUSE_BLK7                 = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+    EFUSE_BLK_KEY3             = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+
+    EFUSE_BLK8                 = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+    EFUSE_BLK_KEY4             = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+
+    EFUSE_BLK9                 = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY5             = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY_MAX          = 10,
+
+    EFUSE_BLK10                = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+    EFUSE_BLK_SYS_DATA_PART2   = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+
+    EFUSE_BLK_MAX
+} esp_efuse_block_t;
+
+/****************************************************************************
+ * Name: efuse_func_proc_t;

Review comment:
       ```suggestion
    * Name: efuse_func_proc_t
   ```

##########
File path: arch/risc-v/src/esp32c3/esp32c3_efuse.h
##########
@@ -0,0 +1,189 @@
+/****************************************************************************
+ * arch/risc-v/src/esp32c3/esp32c3_efuse.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/efuse/efuse.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* Type of eFuse blocks for ESP32C3 */
+
+typedef enum
+{
+    EFUSE_BLK0                 = 0,   /**< Number of eFuse BLOCK0. REPEAT_DATA 
*/
+
+    EFUSE_BLK1                 = 1,   /**< Number of eFuse BLOCK1. 
MAC_SPI_8M_SYS */
+
+    EFUSE_BLK2                 = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+    EFUSE_BLK_SYS_DATA_PART1   = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+
+    EFUSE_BLK3                 = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+    EFUSE_BLK_USER_DATA        = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+
+    EFUSE_BLK4                 = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+    EFUSE_BLK_KEY0             = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+
+    EFUSE_BLK5                 = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+    EFUSE_BLK_KEY1             = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+
+    EFUSE_BLK6                 = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+    EFUSE_BLK_KEY2             = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+
+    EFUSE_BLK7                 = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+    EFUSE_BLK_KEY3             = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+
+    EFUSE_BLK8                 = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+    EFUSE_BLK_KEY4             = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+
+    EFUSE_BLK9                 = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY5             = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY_MAX          = 10,
+
+    EFUSE_BLK10                = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+    EFUSE_BLK_SYS_DATA_PART2   = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+
+    EFUSE_BLK_MAX
+} esp_efuse_block_t;
+
+/****************************************************************************
+ * Name: efuse_func_proc_t;
+ *
+ * Description:
+ *   This is type of function that will handle the efuse field register.
+ *
+ * Input Parameters:
+ *   num_reg          - The register number in the block.
+ *   bit_start        - Start bit in the register.
+ *   bit_count        - The number of bits used in the register.
+ *   arr              - A pointer to an array or variable.
+ *   bits_counter     - Counter bits.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+typedef int (*efuse_func_proc_t) (uint32_t num_reg,
+                                  int bit_start,
+                                  int bit_count,
+                                  void *arr, int *bits_counter);
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32c3_efuse_read_field;

Review comment:
       ```suggestion
    * Name: esp32c3_efuse_read_field
   ```

##########
File path: arch/risc-v/src/esp32c3/esp32c3_efuse.h
##########
@@ -0,0 +1,189 @@
+/****************************************************************************
+ * arch/risc-v/src/esp32c3/esp32c3_efuse.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/efuse/efuse.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* Type of eFuse blocks for ESP32C3 */
+
+typedef enum
+{
+    EFUSE_BLK0                 = 0,   /**< Number of eFuse BLOCK0. REPEAT_DATA 
*/
+
+    EFUSE_BLK1                 = 1,   /**< Number of eFuse BLOCK1. 
MAC_SPI_8M_SYS */
+
+    EFUSE_BLK2                 = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+    EFUSE_BLK_SYS_DATA_PART1   = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+
+    EFUSE_BLK3                 = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+    EFUSE_BLK_USER_DATA        = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+
+    EFUSE_BLK4                 = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+    EFUSE_BLK_KEY0             = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+
+    EFUSE_BLK5                 = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+    EFUSE_BLK_KEY1             = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+
+    EFUSE_BLK6                 = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+    EFUSE_BLK_KEY2             = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+
+    EFUSE_BLK7                 = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+    EFUSE_BLK_KEY3             = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+
+    EFUSE_BLK8                 = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+    EFUSE_BLK_KEY4             = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+
+    EFUSE_BLK9                 = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY5             = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY_MAX          = 10,
+
+    EFUSE_BLK10                = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+    EFUSE_BLK_SYS_DATA_PART2   = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+
+    EFUSE_BLK_MAX
+} esp_efuse_block_t;
+
+/****************************************************************************
+ * Name: efuse_func_proc_t;
+ *
+ * Description:
+ *   This is type of function that will handle the efuse field register.
+ *
+ * Input Parameters:
+ *   num_reg          - The register number in the block.
+ *   bit_start        - Start bit in the register.
+ *   bit_count        - The number of bits used in the register.
+ *   arr              - A pointer to an array or variable.
+ *   bits_counter     - Counter bits.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+typedef int (*efuse_func_proc_t) (uint32_t num_reg,
+                                  int bit_start,
+                                  int bit_count,
+                                  void *arr, int *bits_counter);
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32c3_efuse_read_field;
+ *
+ * Description:
+ *   Read value from EFUSE, writing it into an array.
+ *
+ * Input Parameters:
+ *   field          - A pointer to describing the fields of efuse
+ *   dst            - A pointer to array that contains the data for reading
+ *   dst_size_bits  - The number of bits required to read
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32c3_efuse_read_field(const efuse_desc_t *field[], void *dst,
+                             size_t dst_size_bits);
+
+/****************************************************************************
+ * Name: esp32c3_efuse_write_field;

Review comment:
       ```suggestion
    * Name: esp32c3_efuse_write_field
   ```

##########
File path: arch/risc-v/src/esp32c3/esp32c3_efuse.h
##########
@@ -0,0 +1,189 @@
+/****************************************************************************
+ * arch/risc-v/src/esp32c3/esp32c3_efuse.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/efuse/efuse.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* Type of eFuse blocks for ESP32C3 */
+
+typedef enum
+{
+    EFUSE_BLK0                 = 0,   /**< Number of eFuse BLOCK0. REPEAT_DATA 
*/
+
+    EFUSE_BLK1                 = 1,   /**< Number of eFuse BLOCK1. 
MAC_SPI_8M_SYS */
+
+    EFUSE_BLK2                 = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+    EFUSE_BLK_SYS_DATA_PART1   = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+
+    EFUSE_BLK3                 = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+    EFUSE_BLK_USER_DATA        = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+
+    EFUSE_BLK4                 = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+    EFUSE_BLK_KEY0             = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+
+    EFUSE_BLK5                 = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+    EFUSE_BLK_KEY1             = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+
+    EFUSE_BLK6                 = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+    EFUSE_BLK_KEY2             = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+
+    EFUSE_BLK7                 = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+    EFUSE_BLK_KEY3             = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+
+    EFUSE_BLK8                 = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+    EFUSE_BLK_KEY4             = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+
+    EFUSE_BLK9                 = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY5             = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY_MAX          = 10,
+
+    EFUSE_BLK10                = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+    EFUSE_BLK_SYS_DATA_PART2   = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+
+    EFUSE_BLK_MAX
+} esp_efuse_block_t;
+
+/****************************************************************************
+ * Name: efuse_func_proc_t;
+ *
+ * Description:
+ *   This is type of function that will handle the efuse field register.
+ *
+ * Input Parameters:
+ *   num_reg          - The register number in the block.
+ *   bit_start        - Start bit in the register.
+ *   bit_count        - The number of bits used in the register.
+ *   arr              - A pointer to an array or variable.
+ *   bits_counter     - Counter bits.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+typedef int (*efuse_func_proc_t) (uint32_t num_reg,
+                                  int bit_start,
+                                  int bit_count,
+                                  void *arr, int *bits_counter);
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32c3_efuse_read_field;
+ *
+ * Description:
+ *   Read value from EFUSE, writing it into an array.
+ *
+ * Input Parameters:
+ *   field          - A pointer to describing the fields of efuse
+ *   dst            - A pointer to array that contains the data for reading
+ *   dst_size_bits  - The number of bits required to read
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32c3_efuse_read_field(const efuse_desc_t *field[], void *dst,
+                             size_t dst_size_bits);
+
+/****************************************************************************
+ * Name: esp32c3_efuse_write_field;
+ *
+ * Description:
+ *   Write array to EFUSE.
+ *
+ * Input Parameters:
+ *   field          - A pointer to describing the fields of efuse
+ *   src            - A pointer to array that contains the data for writing
+ *   src_size_bits  - The number of bits required to write
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32c3_efuse_write_field(const efuse_desc_t *field[],
+                              const void *src, size_t src_size_bits);
+
+/****************************************************************************
+ * Name: esp32c3_efuse_burn_efuses;

Review comment:
       ```suggestion
    * Name: esp32c3_efuse_burn_efuses
   ```

##########
File path: arch/risc-v/src/esp32c3/esp32c3_efuse.h
##########
@@ -0,0 +1,189 @@
+/****************************************************************************
+ * arch/risc-v/src/esp32c3/esp32c3_efuse.h
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.  The
+ * ASF licenses this file to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance with the
+ * License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+ * License for the specific language governing permissions and limitations
+ * under the License.
+ *
+ ****************************************************************************/
+
+#ifndef __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+#define __ARCH_RISCV_SRC_ESP32C3_ESP32C3_EFUSE_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/efuse/efuse.h>
+
+#ifndef __ASSEMBLY__
+
+#undef EXTERN
+#if defined(__cplusplus)
+#define EXTERN extern "C"
+extern "C"
+{
+#else
+#define EXTERN extern
+#endif
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+/* Type of eFuse blocks for ESP32C3 */
+
+typedef enum
+{
+    EFUSE_BLK0                 = 0,   /**< Number of eFuse BLOCK0. REPEAT_DATA 
*/
+
+    EFUSE_BLK1                 = 1,   /**< Number of eFuse BLOCK1. 
MAC_SPI_8M_SYS */
+
+    EFUSE_BLK2                 = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+    EFUSE_BLK_SYS_DATA_PART1   = 2,   /**< Number of eFuse BLOCK2. 
SYS_DATA_PART1 */
+
+    EFUSE_BLK3                 = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+    EFUSE_BLK_USER_DATA        = 3,   /**< Number of eFuse BLOCK3. USER_DATA */
+
+    EFUSE_BLK4                 = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+    EFUSE_BLK_KEY0             = 4,   /**< Number of eFuse BLOCK4. KEY0 */
+
+    EFUSE_BLK5                 = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+    EFUSE_BLK_KEY1             = 5,   /**< Number of eFuse BLOCK5. KEY1 */
+
+    EFUSE_BLK6                 = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+    EFUSE_BLK_KEY2             = 6,   /**< Number of eFuse BLOCK6. KEY2 */
+
+    EFUSE_BLK7                 = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+    EFUSE_BLK_KEY3             = 7,   /**< Number of eFuse BLOCK7. KEY3 */
+
+    EFUSE_BLK8                 = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+    EFUSE_BLK_KEY4             = 8,   /**< Number of eFuse BLOCK8. KEY4 */
+
+    EFUSE_BLK9                 = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY5             = 9,   /**< Number of eFuse BLOCK9. KEY5 */
+    EFUSE_BLK_KEY_MAX          = 10,
+
+    EFUSE_BLK10                = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+    EFUSE_BLK_SYS_DATA_PART2   = 10,  /**< Number of eFuse BLOCK10. 
SYS_DATA_PART2 */
+
+    EFUSE_BLK_MAX
+} esp_efuse_block_t;
+
+/****************************************************************************
+ * Name: efuse_func_proc_t;
+ *
+ * Description:
+ *   This is type of function that will handle the efuse field register.
+ *
+ * Input Parameters:
+ *   num_reg          - The register number in the block.
+ *   bit_start        - Start bit in the register.
+ *   bit_count        - The number of bits used in the register.
+ *   arr              - A pointer to an array or variable.
+ *   bits_counter     - Counter bits.
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+typedef int (*efuse_func_proc_t) (uint32_t num_reg,
+                                  int bit_start,
+                                  int bit_count,
+                                  void *arr, int *bits_counter);
+
+/****************************************************************************
+ * Public Functions Prototypes
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: esp32c3_efuse_read_field;
+ *
+ * Description:
+ *   Read value from EFUSE, writing it into an array.
+ *
+ * Input Parameters:
+ *   field          - A pointer to describing the fields of efuse
+ *   dst            - A pointer to array that contains the data for reading
+ *   dst_size_bits  - The number of bits required to read
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32c3_efuse_read_field(const efuse_desc_t *field[], void *dst,
+                             size_t dst_size_bits);
+
+/****************************************************************************
+ * Name: esp32c3_efuse_write_field;
+ *
+ * Description:
+ *   Write array to EFUSE.
+ *
+ * Input Parameters:
+ *   field          - A pointer to describing the fields of efuse
+ *   src            - A pointer to array that contains the data for writing
+ *   src_size_bits  - The number of bits required to write
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success. Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32c3_efuse_write_field(const efuse_desc_t *field[],
+                              const void *src, size_t src_size_bits);
+
+/****************************************************************************
+ * Name: esp32c3_efuse_burn_efuses;
+ *
+ * Description:
+ *   Burn values written to the efuse write registers.
+ *
+ * Input Parameters:
+ *   None
+ *
+ * Returned Value:
+ *   None.
+ *
+ ****************************************************************************/
+
+void esp32c3_efuse_burn_efuses(void);
+
+/****************************************************************************
+ * Name: esp32c3_efuse_initialize;

Review comment:
       ```suggestion
    * Name: esp32c3_efuse_initialize
   ```




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