arch/xtensa/esp32: Update E-Fuse driver

Updates E-Fuse driver for ESP32, now sharing a common implementation across Xtensa devices.

Signed-off-by: Filipe Cavalcanti <filipe.cavalcanti@espressif.com>
This commit is contained in:
Filipe Cavalcanti 2025-07-21 14:45:50 -03:00 committed by Tiago Medicci Serrano
parent 8d6dcd61ed
commit ce99fbd904
18 changed files with 158 additions and 1017 deletions

View file

@ -111,8 +111,9 @@ ifeq ($(CONFIG_ESPRESSIF_ADC),y)
CHIP_CSRCS += esp_adc.c
endif
ifeq ($(CONFIG_ESPRESSIF_EFUSE),y)
CHIP_CSRCS += esp_efuse.c
ifeq ($(CONFIG_ESPRESSIF_EFUSE),y)
LDFLAGS += -u esp_efuse_startup_include_func
endif

View file

@ -38,6 +38,12 @@
#include "esp_efuse.h"
#include "esp_efuse_utility.h"
#ifdef CONFIG_ARCH_CHIP_ESP32
#include "xtensa.h"
#include "soc/apb_ctrl_reg.h"
#include "esp_efuse_table.h"
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
@ -54,6 +60,8 @@ struct esp_efuse_lowerhalf_s
void *upper; /* Pointer to efuse_upperhalf_s */
};
#ifdef CONFIG_ESPRESSIF_EFUSE
/****************************************************************************
* Private Functions Prototypes
****************************************************************************/
@ -306,3 +314,66 @@ int esp_efuse_initialize(const char *devpath)
return ret;
}
#endif
/****************************************************************************
* Name: esp_efuse_hal_chip_revision
*
* Description:
* Returns the chip version in the format: Major * 100 + Minor.
* This function must be compiled even when CONFIG_ESPRESSIF_EFUSE is not
* defined, because it required used by esp32_start.c.
*
* Input Parameters:
* None
*
* Returned Value:
* The chip version as an unsigned 32-bit integer.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_ESP32
uint32_t esp_efuse_hal_chip_revision(void)
{
uint8_t eco_bit0;
uint8_t eco_bit1;
uint8_t eco_bit2;
uint8_t minor_chip_version;
uint32_t combine_value;
uint32_t chip_ver = 0;
esp_efuse_read_field_blob(ESP_EFUSE_CHIP_VER_REV1,
&eco_bit0,
ESP_EFUSE_CHIP_VER_REV1[0]->bit_count);
esp_efuse_read_field_blob(ESP_EFUSE_CHIP_VER_REV2,
&eco_bit1,
ESP_EFUSE_CHIP_VER_REV2[0]->bit_count);
esp_efuse_read_field_blob(ESP_EFUSE_WAFER_VERSION_MINOR,
&minor_chip_version,
ESP_EFUSE_WAFER_VERSION_MINOR[0]->bit_count);
eco_bit2 = (getreg32(APB_CTRL_DATE_REG) & 0x80000000) >> 31;
combine_value = (eco_bit2 << 2) | (eco_bit1 << 1) | eco_bit0;
switch (combine_value)
{
case 0:
chip_ver = 0;
break;
case 1:
chip_ver = 1;
break;
case 3:
chip_ver = 2;
break;
case 7:
chip_ver = 3;
break;
default:
chip_ver = 0;
break;
}
return (chip_ver * 100) + minor_chip_version;
}
#endif

View file

@ -115,6 +115,24 @@ typedef enum
* Public Functions Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp_efuse_hal_chip_revision
*
* Description:
* Returns the chip version in the format: Major * 100 + Minor.
*
* Input Parameters:
* None
*
* Returned Value:
* The chip version as an unsigned 32-bit integer.
*
****************************************************************************/
#ifdef CONFIG_ARCH_CHIP_ESP32
uint32_t esp_efuse_hal_chip_revision(void);
#endif
/****************************************************************************
* Name: esp_efuse_initialize
*
@ -131,7 +149,9 @@ typedef enum
*
****************************************************************************/
#ifdef CONFIG_ESPRESSIF_EFUSE
int esp_efuse_initialize(const char *devpath);
#endif
#undef EXTERN
#if defined(__cplusplus)

View file

@ -231,10 +231,8 @@ config ESP32_BT
No yet implemented
config ESP32_EFUSE
bool "EFUSE support"
default n
---help---
Enable ESP32 efuse support.
bool
select ESPRESSIF_EFUSE
config ESP32_EMAC
bool "Ethernet MAC"

View file

@ -115,11 +115,6 @@ CHIP_CSRCS += esp32_himem.c
CHIP_CSRCS += esp32_himem_chardev.c
endif
CHIP_CSRCS += esp32_efuse.c
ifeq ($(CONFIG_ESP32_EFUSE),y)
CHIP_CSRCS += esp32_efuse_lowerhalf.c
endif
ifeq ($(CONFIG_ESP32_EMAC),y)
CHIP_CSRCS += esp32_emac.c
endif
@ -228,7 +223,7 @@ endif
ESP_HAL_3RDPARTY_REPO = esp-hal-3rdparty
ifndef ESP_HAL_3RDPARTY_VERSION
ESP_HAL_3RDPARTY_VERSION = e9a78c811578545e2bc673862d885a15bd6cbf67
ESP_HAL_3RDPARTY_VERSION = 96185c5348c747d2e15baef639d0b2a842ecd504
endif
ifndef ESP_HAL_3RDPARTY_URL

View file

@ -1,605 +0,0 @@
/****************************************************************************
* arch/xtensa/src/esp32/esp32_efuse.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <debug.h>
#include <errno.h>
#include <assert.h>
#include <string.h>
#include <sys/param.h>
#include <nuttx/efuse/efuse.h>
#include "xtensa.h"
#include "esp32_efuse.h"
#include "esp32_clockconfig.h"
#include "hardware/esp32_apb_ctrl.h"
#include "hardware/esp32_efuse.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define EFUSE_CONF_WRITE 0x5a5a /* eFuse_pgm_op_ena, force no rd/wr dis. */
#define EFUSE_CONF_READ 0x5aa5 /* eFuse_read_op_ena, release force. */
#define EFUSE_CMD_PGM 0x02 /* Command to program. */
#define EFUSE_CMD_READ 0x01 /* Command to read. */
/****************************************************************************
* Private Data
****************************************************************************/
uint32_t g_start_efuse_rdreg[4] =
{
EFUSE_BLK0_RDATA0_REG,
EFUSE_BLK1_RDATA0_REG,
EFUSE_BLK2_RDATA0_REG,
EFUSE_BLK3_RDATA0_REG
};
uint32_t g_start_efuse_wrreg[4] =
{
EFUSE_BLK0_WDATA0_REG,
EFUSE_BLK1_WDATA0_REG,
EFUSE_BLK2_WDATA0_REG,
EFUSE_BLK3_WDATA0_REG
};
/****************************************************************************
* Private Prototypes
****************************************************************************/
#ifdef CONFIG_ESP32_EFUSE
static int esp_efuse_set_timing(void);
void esp_efuse_burn_efuses(void);
static uint32_t get_mask(uint32_t bit_count, uint32_t shift);
static int get_reg_num(int bit_offset, int bit_count, int i_reg);
static int get_count_bits_in_reg(int bit_offset, int bit_count, int i_reg);
static int esp_efuse_get_field_size(const efuse_desc_t *field[]);
static bool check_range_of_bits(int offset_in_bits, int size_bits);
static int esp_efuse_get_number_of_items(int bits, int size_of_base);
static uint32_t fill_reg(int bit_start_in_reg, int bit_count_in_reg,
uint8_t *blob, int *filled_bits_blob);
static int esp_efuse_process(const efuse_desc_t *field[], void *ptr,
size_t ptr_size_bits,
efuse_func_proc_t func_proc);
static uint32_t esp_efuse_read_reg(uint32_t blk, uint32_t num_reg);
static int esp_efuse_write_blob(uint32_t num_reg, int bit_offset,
int bit_count, void *arr_in,
int *bits_counter);
static int esp_efuse_fill_buff(uint32_t num_reg, int bit_offset,
int bit_count, void *arr_out,
int *bits_counter);
static void esp_efuse_write_reg(uint32_t blk, uint32_t num_reg,
uint32_t value);
#endif /* CONFIG_ESP32_EFUSE */
static uint32_t efuse_hal_get_major_chip_version(void);
static uint32_t efuse_hal_get_minor_chip_version(void);
/****************************************************************************
* Private Functions
****************************************************************************/
#ifdef CONFIG_ESP32_EFUSE
static int esp_efuse_set_timing(void)
{
uint32_t apb_freq_mhz = esp_clk_apb_freq() / 1000000;
uint32_t clk_sel0;
uint32_t clk_sel1;
uint32_t dac_clk_div;
if (apb_freq_mhz <= 26)
{
clk_sel0 = 250;
clk_sel1 = 255;
dac_clk_div = 52;
}
else
{
if (apb_freq_mhz <= 40)
{
clk_sel0 = 160;
clk_sel1 = 255;
dac_clk_div = 80;
}
else
{
clk_sel0 = 80;
clk_sel1 = 128;
dac_clk_div = 100;
}
}
REG_SET_FIELD(EFUSE_DAC_CONF_REG, EFUSE_DAC_CLK_DIV, dac_clk_div);
REG_SET_FIELD(EFUSE_CLK_REG, EFUSE_CLK_SEL0, clk_sel0);
REG_SET_FIELD(EFUSE_CLK_REG, EFUSE_CLK_SEL1, clk_sel1);
return OK;
}
/* return mask with required the number of ones with shift */
static uint32_t get_mask(uint32_t bit_count, uint32_t shift)
{
uint32_t mask;
if (bit_count != 32)
{
mask = (1 << bit_count) - 1;
}
else
{
mask = 0xffffffff;
}
return mask << shift;
}
/* return the register number in the array
* return -1 if all registers for field was selected
*/
static int get_reg_num(int bit_offset, int bit_count, int i_reg)
{
uint32_t bit_start = (bit_offset % 256);
int num_reg = i_reg + bit_start / 32;
if (num_reg > (bit_start + bit_count - 1) / 32)
{
return -1;
}
return num_reg;
}
/* Returns the number of bits in the register */
static int get_count_bits_in_reg(int bit_offset, int bit_count, int i_reg)
{
int ret_count = 0;
int num_reg = 0;
int num_bit;
int bit_start = (bit_offset % 256);
int last_used_bit = (bit_start + bit_count - 1);
for (num_bit = bit_start; num_bit <= last_used_bit; ++num_bit)
{
++ret_count;
if ((((num_bit + 1) % 32) == 0) || (num_bit == last_used_bit))
{
if (i_reg == num_reg++)
{
return ret_count;
}
ret_count = 0;
}
}
return 0;
}
/* get the length of the field in bits */
static int esp_efuse_get_field_size(const efuse_desc_t *field[])
{
int bits_counter = 0;
if (field != NULL)
{
int i = 0;
while (field[i] != NULL)
{
bits_counter += field[i]->bit_count;
++i;
}
}
return bits_counter;
}
/* check range of bits for any coding scheme */
static bool check_range_of_bits(int offset_in_bits, int size_bits)
{
int blk_offset = offset_in_bits % 256;
int max_num_bit = blk_offset + size_bits;
if (max_num_bit > 256)
{
return false;
}
return true;
}
/* Returns the number of array elements for placing these bits in an array
* with the length of each element equal to size_of_base.
*/
static int esp_efuse_get_number_of_items(int bits, int size_of_base)
{
return bits / size_of_base + (bits % size_of_base > 0 ? 1 : 0);
}
/* fill efuse register from array */
static uint32_t fill_reg(int bit_start_in_reg, int bit_count_in_reg,
uint8_t *blob, int *filled_bits_blob)
{
uint32_t reg_to_write = 0;
uint32_t temp_blob_32;
int shift_reg;
int shift_bit = (*filled_bits_blob) % 8;
if (shift_bit != 0)
{
temp_blob_32 = blob[(*filled_bits_blob) / 8] >> shift_bit;
shift_bit = ((8 - shift_bit) < bit_count_in_reg) ?
(8 - shift_bit) : bit_count_in_reg;
reg_to_write = temp_blob_32 & get_mask(shift_bit, 0);
(*filled_bits_blob) += shift_bit;
bit_count_in_reg -= shift_bit;
}
shift_reg = shift_bit;
while (bit_count_in_reg > 0)
{
temp_blob_32 = blob[(*filled_bits_blob) / 8];
shift_bit = (bit_count_in_reg > 8) ? 8 : bit_count_in_reg;
reg_to_write |= (temp_blob_32 & get_mask(shift_bit, 0)) << shift_reg;
(*filled_bits_blob) += shift_bit;
bit_count_in_reg -= shift_bit;
shift_reg += 8;
};
return reg_to_write << bit_start_in_reg;
}
/* This function processes the field by calling the passed function */
static int esp_efuse_process(const efuse_desc_t *field[], void *ptr,
size_t ptr_size_bits,
efuse_func_proc_t func_proc)
{
int err = OK;
int bits_counter = 0;
int field_len;
int req_size;
int i = 0;
/* get and check size */
field_len = esp_efuse_get_field_size(field);
req_size = (ptr_size_bits == 0) ? field_len : \
MIN(ptr_size_bits, field_len);
while (err == OK && req_size > bits_counter && field[i] != NULL)
{
int i_reg = 0;
int num_reg;
if (check_range_of_bits(field[i]->bit_offset,
field[i]->bit_count) == false)
{
minfo("Range of data does not match the coding scheme");
err = -EINVAL;
}
while (err == OK && req_size > bits_counter &&
(num_reg = get_reg_num(field[i]->bit_offset,
field[i]->bit_count, i_reg)) != -1)
{
int num_bits = get_count_bits_in_reg(field[i]->bit_offset,
field[i]->bit_count,
i_reg);
int bit_offset = field[i]->bit_offset;
if ((bits_counter + num_bits) > req_size)
{
/* Limits the length of the field */
num_bits = req_size - bits_counter;
}
err = func_proc(num_reg, bit_offset, num_bits, ptr, &bits_counter);
++i_reg;
}
i++;
}
DEBUGASSERT(bits_counter <= req_size);
return err;
}
/* Fill registers from array for writing */
static int esp_efuse_write_blob(uint32_t num_reg, int bit_offset,
int bit_count, void *arr_in, int *bits_counter)
{
uint32_t block = (bit_offset / 256);
uint32_t bit_start = (bit_offset % 256);
uint32_t reg_to_write = fill_reg(bit_start, bit_count, (uint8_t *) arr_in,
bits_counter);
esp_efuse_write_reg(block, num_reg, reg_to_write);
return OK;
}
/* Read efuse register */
static uint32_t esp_efuse_read_reg(uint32_t blk, uint32_t num_reg)
{
DEBUGASSERT(blk >= 0 && blk < EFUSE_BLK_MAX);
uint32_t value;
uint32_t blk_start = g_start_efuse_rdreg[blk];
DEBUGASSERT(num_reg <= 7);
value = getreg32(blk_start + num_reg * 4);
return value;
}
/* Read efuse register and write this value to array. */
static int esp_efuse_fill_buff(uint32_t num_reg, int bit_offset,
int bit_count, void *arr_out,
int *bits_counter)
{
uint8_t *blob = (uint8_t *) arr_out;
uint32_t efuse_block = (bit_offset / 256);
uint32_t bit_start = (bit_offset % 256);
uint32_t reg = esp_efuse_read_reg(efuse_block, num_reg);
uint64_t reg_of_aligned_bits = (reg >> bit_start) & get_mask(bit_count, 0);
int sum_shift = 0;
int shift_bit = (*bits_counter) % 8;
minfo("block = %" PRIu32 " | num_reg = %" PRIu32 ""
" | bit_start = %" PRIu32 " | bit_count = %d\n",
efuse_block, num_reg, bit_start, bit_count);
if (shift_bit != 0)
{
blob[(*bits_counter) / 8] |= (uint8_t)(reg_of_aligned_bits << \
shift_bit);
shift_bit = ((8 - shift_bit) < bit_count) ? (8 - shift_bit) : \
bit_count;
(*bits_counter) += shift_bit;
bit_count -= shift_bit;
}
while (bit_count > 0)
{
sum_shift += shift_bit;
blob[(*bits_counter) / 8] |= (uint8_t)(reg_of_aligned_bits >> \
sum_shift);
shift_bit = (bit_count > 8) ? 8 : bit_count;
(*bits_counter) += shift_bit;
bit_count -= shift_bit;
};
return OK;
}
/* Write efuse register */
static void esp_efuse_write_reg(uint32_t blk, uint32_t num_reg,
uint32_t value)
{
uint32_t addr_wr_reg;
uint32_t reg_to_write;
uint32_t blk_start = g_start_efuse_wrreg[blk];
DEBUGASSERT(blk >= 0 && blk < EFUSE_BLK_MAX);
DEBUGASSERT(num_reg <= 7);
/* The block 0 and register 7 doesn't exist */
if (blk == 0 && num_reg == 7)
{
merr("Block 0 Register 7 doesn't exist!\n");
return;
}
addr_wr_reg = blk_start + num_reg * 4;
reg_to_write = getreg32(addr_wr_reg) | value;
/* The register can be written in parts so we combine the new value
* with the one already available.
*/
putreg32(reg_to_write, addr_wr_reg);
}
#endif /* CONFIG_ESP32_EFUSE */
/****************************************************************************
* Name: efuse_hal_get_major_chip_version
*
* Description:
* Retrieves the major version of the chip. It reads the version
* information from specific registers and combines them to determine
* the major version.
*
* Input Parameters:
* None
*
* Returned Value:
* The major version of the chip as an unsigned 32-bit integer.
*
****************************************************************************/
IRAM_ATTR static uint32_t efuse_hal_get_major_chip_version(void)
{
uint8_t eco_bit0;
uint8_t eco_bit1;
uint8_t eco_bit2;
uint32_t combine_value;
uint32_t chip_ver = 0;
eco_bit0 = REG_GET_FIELD(EFUSE_BLK0_RDATA3_REG, EFUSE_RD_CHIP_VER_REV1);
eco_bit1 = REG_GET_FIELD(EFUSE_BLK0_RDATA5_REG, EFUSE_RD_CHIP_VER_REV2);
eco_bit2 = (getreg32(APB_CTRL_DATE_REG) & 0x80000000) >> 31;
combine_value = (eco_bit2 << 2) | (eco_bit1 << 1) | eco_bit0;
switch (combine_value)
{
case 0:
chip_ver = 0;
break;
case 1:
chip_ver = 1;
break;
case 3:
chip_ver = 2;
break;
case 7:
chip_ver = 3;
break;
default:
chip_ver = 0;
break;
}
return chip_ver;
}
/****************************************************************************
* Name: efuse_hal_get_minor_chip_version
*
* Description:
* Retrieves the minor version of the chip. It reads the version
* information from a specific register.
*
* Input Parameters:
* None
*
* Returned Value:
* The minor version of the chip as an unsigned 32-bit integer.
*
****************************************************************************/
IRAM_ATTR static uint32_t efuse_hal_get_minor_chip_version(void)
{
return REG_GET_FIELD(EFUSE_BLK0_RDATA5_REG, EFUSE_RD_WAFER_VERSION_MINOR);
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp_efuse_hal_chip_revision
*
* Description:
* Returns the chip version in the format: Major * 100 + Minor.
*
* Input Parameters:
* None
*
* Returned Value:
* The chip version as an unsigned 32-bit integer.
*
****************************************************************************/
IRAM_ATTR uint32_t esp_efuse_hal_chip_revision(void)
{
return (efuse_hal_get_major_chip_version() * 100) +
efuse_hal_get_minor_chip_version();
}
#ifdef CONFIG_ESP32_EFUSE
/* Read value from EFUSE, writing it into an array */
int esp_efuse_read_field(const efuse_desc_t *field[], void *dst,
size_t dst_size_bits)
{
int err = OK;
if (field == NULL || dst == NULL || dst_size_bits == 0)
{
err = -EINVAL;
}
else
{
memset((uint8_t *)dst, 0,
esp_efuse_get_number_of_items(dst_size_bits, 8));
err = esp_efuse_process(field, dst, dst_size_bits,
esp_efuse_fill_buff);
}
return err;
}
/* Write array to EFUSE */
int esp_efuse_write_field(const efuse_desc_t *field[],
const void *src, size_t src_size_bits)
{
int err = OK;
if (field == NULL || src == NULL || src_size_bits == 0)
{
err = -EINVAL;
}
else
{
err = esp_efuse_process(field, (void *)src, src_size_bits,
esp_efuse_write_blob);
}
return err;
}
/* Burn values written to the efuse write registers */
void esp_efuse_burn_efuses(void)
{
esp_efuse_set_timing();
/* Permanently update values written to the efuse write registers */
putreg32(EFUSE_CONF_WRITE, EFUSE_CONF_REG);
putreg32(EFUSE_CMD_PGM, EFUSE_CMD_REG);
while (getreg32(EFUSE_CMD_REG) != 0)
{
};
putreg32(EFUSE_CONF_READ, EFUSE_CONF_REG);
putreg32(EFUSE_CMD_READ, EFUSE_CMD_REG);
while (getreg32(EFUSE_CMD_REG) != 0)
{
};
}
#endif /* CONFIG_ESP32_EFUSE */

View file

@ -1,93 +0,0 @@
/****************************************************************************
* arch/xtensa/src/esp32/esp32_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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/efuse/efuse.h>
/****************************************************************************
* Public Types
****************************************************************************/
/* Type of eFuse blocks for ESP32 */
typedef enum
{
EFUSE_BLK0 = 0, /* Reserved. */
EFUSE_BLK1 = 1, /* Used for Flash Encryption. */
EFUSE_BLK2 = 2, /* Used for Secure Boot. */
EFUSE_BLK3 = 3, /* Uses for the purpose of the user. */
EFUSE_BLK_MAX
} esp_efuse_block_t;
/* This is type of function that will handle the efuse field register.
*
* num_reg The register number in the block.
* efuse_block Block number.
* 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.
*
* return
* - OK: The operation was successfully completed.
* - other efuse component errors.
*/
typedef int (*efuse_func_proc_t) (uint32_t num_reg,
int starting_bit_num_in_reg,
int num_bits_used_in_reg,
void *arr, int *bits_counter);
/****************************************************************************
* Public Functions Prototypes
****************************************************************************/
/****************************************************************************
* Name: esp_efuse_hal_chip_revision
*
* Description:
* Returns the chip version in the format: Major * 100 + Minor.
*
* Input Parameters:
* None
*
* Returned Value:
* The chip version as an unsigned 32-bit integer.
*
****************************************************************************/
uint32_t esp_efuse_hal_chip_revision(void);
#ifdef CONFIG_ESP32_EFUSE
int esp_efuse_read_field(const efuse_desc_t *field[], void *dst,
size_t dst_size_bits);
int esp_efuse_write_field(const efuse_desc_t *field[],
const void *src, size_t src_size_bits);
void esp_efuse_burn_efuses(void);
int esp32_efuse_initialize(const char *devpath);
#endif /* CONFIG_ESP32_EFUSE */

View file

@ -1,195 +0,0 @@
/****************************************************************************
* arch/xtensa/src/esp32/esp32_efuse_lowerhalf.c
*
* 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.
*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <stdlib.h>
#include <debug.h>
#include <assert.h>
#include <nuttx/irq.h>
#include <nuttx/kmalloc.h>
#include <nuttx/efuse/efuse.h>
#include "hardware/esp32_soc.h"
#include "esp32_efuse.h"
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
struct esp32_efuse_lowerhalf_s
{
const struct efuse_ops_s *ops; /* Lower half operations */
void *upper; /* Pointer to efuse_upperhalf_s */
};
/****************************************************************************
* Private Functions Prototypes
****************************************************************************/
/* "Lower half" driver methods **********************************************/
static int esp32_efuse_read_field(struct efuse_lowerhalf_s *lower,
const efuse_desc_t *field[],
uint8_t *data, size_t size);
static int esp32_efuse_write_field(struct efuse_lowerhalf_s *lower,
const efuse_desc_t *field[],
const uint8_t *data,
size_t size);
static int efuse_ioctl(struct efuse_lowerhalf_s *lower, int cmd,
unsigned long arg);
/****************************************************************************
* Private Data
****************************************************************************/
/* "Lower half" driver methods */
static const struct efuse_ops_s g_esp32_efuse_ops =
{
.read_field = esp32_efuse_read_field,
.write_field = esp32_efuse_write_field,
.ioctl = efuse_ioctl,
};
/* EFUSE lower-half */
static struct esp32_efuse_lowerhalf_s g_esp32_efuse_lowerhalf =
{
.ops = &g_esp32_efuse_ops,
.upper = NULL,
};
/****************************************************************************
* Private functions
****************************************************************************/
static int esp32_efuse_read_field(struct efuse_lowerhalf_s *lower,
const efuse_desc_t *field[],
uint8_t *data, size_t bits_len)
{
int ret = OK;
/* Read the requested field */
ret = esp_efuse_read_field(field, data, bits_len);
return ret;
}
static int esp32_efuse_write_field(struct efuse_lowerhalf_s *lower,
const efuse_desc_t *field[],
const uint8_t *data, size_t bits_len)
{
irqstate_t flags;
int ret = OK;
flags = enter_critical_section();
/* Write the blob data to the field */
ret = esp_efuse_write_field(field, data, bits_len);
/* Burn the EFUSEs */
esp_efuse_burn_efuses();
leave_critical_section(flags);
return ret;
}
/****************************************************************************
* Name: efuse_ioctl
****************************************************************************/
static int efuse_ioctl(struct efuse_lowerhalf_s *lower,
int cmd, unsigned long arg)
{
int ret = OK;
switch (cmd)
{
/* We don't have proprietary EFUSE ioctls */
default:
{
minfo("Unrecognized cmd: %d\n", cmd);
ret = -ENOTTY;
}
break;
}
return ret;
}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: esp32_efuse_initialize
*
* Description:
* Initialize the efuse driver. The efuse is initialized
* and registered as 'devpath'.
*
* Input Parameters:
* devpath - The full path to the efuse. This should
* be of the form /dev/efuse
*
* Returned Values:
* Zero (OK) is returned on success; a negated errno value is returned on
* any failure.
*
****************************************************************************/
int esp32_efuse_initialize(const char *devpath)
{
struct esp32_efuse_lowerhalf_s *lower = NULL;
int ret = OK;
DEBUGASSERT(devpath);
lower = &g_esp32_efuse_lowerhalf;
/* Register the efuser upper driver */
lower->upper = efuse_register(devpath,
(struct efuse_lowerhalf_s *)lower);
if (lower->upper == NULL)
{
/* The actual cause of the failure may have been a failure to allocate
* perhaps a failure to register the efuser driver (such as if the
* 'devpath' were not unique). We know here but we return EEXIST to
* indicate the failure (implying the non-unique devpath).
*/
ret = -EEXIST;
goto errout;
}
errout:
return ret;
}

View file

@ -36,7 +36,6 @@
#include "xtensa_attr.h"
#include "esp32_clockconfig.h"
#include "esp32_efuse.h"
#include "esp32_region.h"
#include "esp32_start.h"
#include "esp32_spiram.h"
@ -48,6 +47,7 @@
#include "hardware/esp32_rtccntl.h"
#include "rom/esp32_libc_stubs.h"
#include "espressif/esp_loader.h"
#include "espressif/esp_efuse.h"
#include "esp_private/startup_internal.h"
#ifdef CONFIG_ESPRESSIF_SIMPLE_BOOT
@ -226,27 +226,6 @@ static noreturn_function void __esp32_start(void)
showprogress('A');
chip_rev = esp_efuse_hal_chip_revision();
_info("ESP32 chip revision is v%" PRId32 ".%01ld\n",
chip_rev / 100, chip_rev % 100);
if (chip_rev < 300)
{
#ifndef ESP32_IGNORE_CHIP_REVISION_CHECK
ets_printf("ERROR: NuttX supports ESP32 chip revision >= v3.0"
" (chip revision is v%" PRId32 ".%01ld)\n",
chip_rev / 100, chip_rev % 100);
PANIC();
#endif
ets_printf("WARNING: NuttX supports ESP32 chip revision >= v3.0"
" (chip is v%" PRId32 ".%01ld).\n"
"Ignoring this error and continuing because "
"`ESP32_IGNORE_CHIP_REVISION_CHECK` is set...\n"
"THIS MAY NOT WORK! DON'T USE THIS CHIP IN PRODUCTION!\n",
chip_rev / 100, chip_rev % 100);
}
#if defined(CONFIG_ESP32_SPIRAM_BOOT_INIT)
if (esp_spiram_init() != OK)
{
@ -301,9 +280,31 @@ static noreturn_function void __esp32_start(void)
showprogress('D');
chip_rev = esp_efuse_hal_chip_revision();
_info("ESP32 chip revision is v%" PRId32 ".%01ld\n",
chip_rev / 100, chip_rev % 100);
if (chip_rev < 300)
{
#ifndef ESP32_IGNORE_CHIP_REVISION_CHECK
ets_printf("ERROR: NuttX supports ESP32 chip revision >= v3.0"
" (chip revision is v%" PRId32 ".%01ld)\n",
chip_rev / 100, chip_rev % 100);
PANIC();
#endif
ets_printf("WARNING: NuttX supports ESP32 chip revision >= v3.0"
" (chip is v%" PRId32 ".%01ld).\n"
"Ignoring this error and continuing because "
"`ESP32_IGNORE_CHIP_REVISION_CHECK` is set...\n"
"THIS MAY NOT WORK! DON'T USE THIS CHIP IN PRODUCTION!\n",
chip_rev / 100, chip_rev % 100);
}
/* Bring up NuttX */
nx_start();
for (; ; ); /* Should not return */
}

View file

@ -94,15 +94,17 @@ ARCHSCRIPT += $(ARCH_SRCDIR)$(DELIM)chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)src$(DELIM)esp_efuse_api.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)src$(DELIM)esp_efuse_utility.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)src$(DELIM)esp_efuse_startup.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)src$(DELIM)esp_efuse_fields.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)$(CHIP_SERIES)$(DELIM)esp_efuse_fields.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)$(CHIP_SERIES)$(DELIM)esp_efuse_table.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)$(CHIP_SERIES)$(DELIM)esp_efuse_utility.c
# Please note that the following source file depends on `CONFIG_SOC_EFUSE_KEY_PURPOSE_FIELD` and `CONFIG_SOC_EFUSE_CONSISTS_OF_ONE_KEY_BLOCK`
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)src$(DELIM)efuse_controller$(DELIM)keys$(DELIM)without_key_purposes$(DELIM)three_key_blocks$(DELIM)esp_efuse_api_key.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_adc$(DELIM)adc_cali.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_adc$(DELIM)$(CHIP_SERIES)$(DELIM)adc_cali_line_fitting.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)$(CHIP_SERIES)$(DELIM)esp_efuse_fields.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)$(CHIP_SERIES)$(DELIM)esp_efuse_table.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)$(CHIP_SERIES)$(DELIM)esp_efuse_utility.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_app_format$(DELIM)esp_app_desc.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_hw_support$(DELIM)adc_share_hw_ctrl.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_hw_support$(DELIM)clk_ctrl_os.c
@ -200,7 +202,6 @@ ifeq ($(CONFIG_ESPRESSIF_SIMPLE_BOOT),y)
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_rom$(DELIM)patches$(DELIM)esp_rom_sys.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_rom$(DELIM)patches$(DELIM)esp_rom_spiflash.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)esp_rom$(DELIM)patches$(DELIM)esp_rom_crc.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)efuse$(DELIM)src$(DELIM)esp_efuse_fields.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)hal$(DELIM)wdt_hal_iram.c
CHIP_CSRCS += chip$(DELIM)$(ESP_HAL_3RDPARTY_REPO)$(DELIM)components$(DELIM)hal$(DELIM)mpu_hal.c

View file

@ -8,7 +8,6 @@
# CONFIG_ARCH_LEDS is not set
# CONFIG_NSH_ARGCAT is not set
# CONFIG_NSH_CMDOPT_HEXDUMP is not set
CONFIG_ALLOW_BSD_COMPONENTS=y
CONFIG_ARCH="xtensa"
CONFIG_ARCH_BOARD="esp32-devkitc"
CONFIG_ARCH_BOARD_COMMON=y
@ -16,84 +15,33 @@ CONFIG_ARCH_BOARD_ESP32_DEVKITC=y
CONFIG_ARCH_CHIP="esp32"
CONFIG_ARCH_CHIP_ESP32=y
CONFIG_ARCH_CHIP_ESP32WROVER=y
CONFIG_ARCH_INTERRUPTSTACK=2048
CONFIG_ARCH_STACKDUMP=y
CONFIG_ARCH_XTENSA=y
CONFIG_BOARD_LOOPSPERMSEC=16717
CONFIG_BUILTIN=y
CONFIG_DEBUG_ASSERTIONS=y
CONFIG_DEBUG_FEATURES=y
CONFIG_DEBUG_FULLOPT=y
CONFIG_DEBUG_MM=y
CONFIG_DEBUG_MM_ERROR=y
CONFIG_DEBUG_MM_WARN=y
CONFIG_DEBUG_NET=y
CONFIG_DEBUG_NET_ERROR=y
CONFIG_DEBUG_NET_WARN=y
CONFIG_DEBUG_SYMBOLS=y
CONFIG_DEFAULT_TASK_STACKSIZE=4096
CONFIG_DEV_URANDOM=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_EFUSE=y
CONFIG_ESP32_EFUSE=y
CONFIG_ESP32_SPIFLASH=y
CONFIG_ESP32_SPIFLASH_SPIFFS=y
CONFIG_ESP32_STORAGE_MTD_SIZE=0x80000
CONFIG_ESP32_UART0=y
CONFIG_ESPRESSIF_WIFI=y
CONFIG_ESPRESSIF_EFUSE=y
CONFIG_FS_PROCFS=y
CONFIG_HAVE_CXX=y
CONFIG_HAVE_CXXINITIALIZE=y
CONFIG_IDLETHREAD_STACKSIZE=3072
CONFIG_INIT_ENTRYPOINT="nsh_main"
CONFIG_INIT_STACKSIZE=3072
CONFIG_INTELHEX_BINARY=y
CONFIG_LINE_MAX=300
CONFIG_LINE_MAX=64
CONFIG_MM_REGIONS=3
CONFIG_NAME_MAX=48
CONFIG_NETDB_DNSCLIENT=y
CONFIG_NETDB_DNSCLIENT_NAMESIZE=64
CONFIG_NETDEV_LATEINIT=y
CONFIG_NETDEV_PHY_IOCTL=y
CONFIG_NETDEV_WIRELESS_IOCTL=y
CONFIG_NETUTILS_CJSON=y
CONFIG_NETUTILS_IPERF=y
CONFIG_NETUTILS_TELNETD=y
CONFIG_NET_BROADCAST=y
CONFIG_NET_ETH_PKTSIZE=1518
CONFIG_NET_ICMP_SOCKET=y
CONFIG_NET_PREALLOC_DEVIF_CALLBACKS=32
CONFIG_NET_STATISTICS=y
CONFIG_NET_TCP=y
CONFIG_NET_TCP_DELAYED_ACK=y
CONFIG_NET_TCP_WRITE_BUFFERS=y
CONFIG_NET_UDP=y
CONFIG_NSH_ARCHINIT=y
CONFIG_NSH_BUILTIN_APPS=y
CONFIG_NSH_FILEIOSIZE=512
CONFIG_NSH_READLINE=y
CONFIG_POSIX_SPAWN_DEFAULT_STACKSIZE=2048
CONFIG_PREALLOC_TIMERS=4
CONFIG_PTHREAD_MUTEX_TYPES=y
CONFIG_RAM_SIZE=114688
CONFIG_RAM_START=0x20000000
CONFIG_RR_INTERVAL=200
CONFIG_SCHED_LPWORK=y
CONFIG_SCHED_WAITPID=y
CONFIG_SIG_DEFAULT=y
CONFIG_SPI=y
CONFIG_SPIFFS_NAME_MAX=48
CONFIG_STACK_COLORATION=y
CONFIG_START_DAY=6
CONFIG_START_MONTH=12
CONFIG_START_YEAR=2011
CONFIG_SYSLOG_BUFFER=y
CONFIG_SYSTEM_DHCPC_RENEW=y
CONFIG_SYSTEM_NSH=y
CONFIG_SYSTEM_PING=y
CONFIG_SYSTEM_STACKMONITOR=y
CONFIG_TLS_TASK_NELEM=4
CONFIG_UART0_SERIAL_CONSOLE=y
CONFIG_WIRELESS=y
CONFIG_WIRELESS_WAPI=y
CONFIG_WIRELESS_WAPI_CMDTOOL=y
CONFIG_WIRELESS_WAPI_INITCONF=y

View file

@ -36,13 +36,12 @@ CONFIG_DEV_URANDOM_XORSHIFT128=y
CONFIG_DISABLE_MQUEUE_SYSV=y
CONFIG_DRIVERS_IEEE80211=y
CONFIG_DRIVERS_WIRELESS=y
CONFIG_EFUSE=y
CONFIG_ESP32_EFUSE=y
CONFIG_ESP32_IRAM_HEAP=y
CONFIG_ESP32_RTC_HEAP=y
CONFIG_ESP32_SPIFLASH=y
CONFIG_ESP32_STORAGE_MTD_SIZE=0x280000
CONFIG_ESP32_UART0=y
CONFIG_ESPRESSIF_EFUSE=y
CONFIG_ESPRESSIF_WIFI=y
CONFIG_EXPERIMENTAL=y
CONFIG_FS_LITTLEFS=y

View file

@ -34,15 +34,15 @@
#include <sys/types.h>
#include <debug.h>
#include <errno.h>
#if defined(CONFIG_ESP32_EFUSE)
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include <nuttx/efuse/efuse.h>
#endif
#include <nuttx/fs/fs.h>
#include <nuttx/himem/himem.h>
#include <nuttx/board.h>
#if defined(CONFIG_ESP32_EFUSE)
#include "esp32_efuse.h"
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include "espressif/esp_efuse.h"
#endif
#include "esp32_partition.h"
@ -237,8 +237,8 @@ int esp32_bringup(void)
}
#endif
#if defined(CONFIG_ESP32_EFUSE)
ret = esp32_efuse_initialize("/dev/efuse");
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);

View file

@ -36,14 +36,14 @@
#include <debug.h>
#include <errno.h>
#if defined(CONFIG_ESP32_EFUSE)
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include <nuttx/efuse/efuse.h>
#endif
#include <nuttx/fs/fs.h>
#include <nuttx/himem/himem.h>
#if defined(CONFIG_ESP32_EFUSE)
#include "esp32_efuse.h"
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include "espressif/esp_efuse.h"
#endif
#include "esp32_partition.h"
@ -145,8 +145,8 @@ int esp32_bringup(void)
}
#endif
#if defined(CONFIG_ESP32_EFUSE)
ret = esp32_efuse_initialize("/dev/efuse");
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);

View file

@ -36,14 +36,14 @@
#include <debug.h>
#include <errno.h>
#if defined(CONFIG_ESP32_EFUSE)
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include <nuttx/efuse/efuse.h>
#endif
#include <nuttx/fs/fs.h>
#include <nuttx/himem/himem.h>
#if defined(CONFIG_ESP32_EFUSE)
#include "esp32_efuse.h"
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include "espressif/esp_efuse.h"
#endif
#include "esp32_partition.h"
@ -144,8 +144,8 @@ int esp32_bringup(void)
}
#endif
#if defined(CONFIG_ESP32_EFUSE)
ret = esp32_efuse_initialize("/dev/efuse");
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);

View file

@ -41,9 +41,9 @@
# include <nuttx/video/fb.h>
#endif
#if defined(CONFIG_ESP32_EFUSE)
#if defined(CONFIG_ESPRESSIF_EFUSE)
# include <nuttx/efuse/efuse.h>
# include "esp32_efuse.h"
# include "espressif/esp_efuse.h"
#endif
#include <nuttx/fs/fs.h>
@ -181,8 +181,8 @@ int esp32_bringup(void)
}
#endif
#if defined(CONFIG_ESP32_EFUSE)
ret = esp32_efuse_initialize("/dev/efuse");
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);

View file

@ -36,14 +36,14 @@
#include <debug.h>
#include <errno.h>
#if defined(CONFIG_ESP32_EFUSE)
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include <nuttx/efuse/efuse.h>
#endif
#include <nuttx/fs/fs.h>
#include <nuttx/himem/himem.h>
#if defined(CONFIG_ESP32_EFUSE)
#include "esp32_efuse.h"
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include "espressif/esp_efuse.h"
#endif
#include "esp32_partition.h"
@ -144,8 +144,8 @@ int esp32_bringup(void)
}
#endif
#if defined(CONFIG_ESP32_EFUSE)
ret = esp32_efuse_initialize("/dev/efuse");
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);

View file

@ -36,14 +36,14 @@
#include <debug.h>
#include <errno.h>
#if defined(CONFIG_ESP32_EFUSE)
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include <nuttx/efuse/efuse.h>
#endif
#include <nuttx/fs/fs.h>
#include <nuttx/himem/himem.h>
#if defined(CONFIG_ESP32_EFUSE)
#include "esp32_efuse.h"
#if defined(CONFIG_ESPRESSIF_EFUSE)
#include "espressif/esp_efuse.h"
#endif
#include "esp32_partition.h"
@ -190,8 +190,8 @@ int esp32_bringup(void)
}
#endif
#if defined(CONFIG_ESP32_EFUSE)
ret = esp32_efuse_initialize("/dev/efuse");
#if defined(CONFIG_ESPRESSIF_EFUSE)
ret = esp_efuse_initialize("/dev/efuse");
if (ret < 0)
{
syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);