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xtensa/esp32: Add efuse driver
This commit is contained in:
Alan C. Assis
committed by
Xiang Xiao
Xiang Xiao
parent
3e9b89f778
commit
6a87b85285
@@ -0,0 +1,69 @@
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/****************************************************************************
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* arch/xtensa/include/esp32/esp_efuse_table.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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extern const efuse_desc_t *ESP_EFUSE_MAC_FACTORY[];
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extern const efuse_desc_t *ESP_EFUSE_MAC_FACTORY_CRC[];
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extern const efuse_desc_t *ESP_EFUSE_MAC_CUSTOM_CRC[];
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extern const efuse_desc_t *ESP_EFUSE_MAC_CUSTOM[];
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extern const efuse_desc_t *ESP_EFUSE_MAC_CUSTOM_VER[];
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extern const efuse_desc_t *ESP_EFUSE_SECURE_BOOT_KEY[];
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extern const efuse_desc_t *ESP_EFUSE_ABS_DONE_0[];
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extern const efuse_desc_t *ESP_EFUSE_ENCRYPT_FLASH_KEY[];
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extern const efuse_desc_t *ESP_EFUSE_ENCRYPT_CONFIG[];
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extern const efuse_desc_t *ESP_EFUSE_DISABLE_DL_ENCRYPT[];
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extern const efuse_desc_t *ESP_EFUSE_DISABLE_DL_DECRYPT[];
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extern const efuse_desc_t *ESP_EFUSE_DISABLE_DL_CACHE[];
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extern const efuse_desc_t *ESP_EFUSE_FLASH_CRYPT_CNT[];
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extern const efuse_desc_t *ESP_EFUSE_DISABLE_JTAG[];
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extern const efuse_desc_t *ESP_EFUSE_CONSOLE_DEBUG_DISABLE[];
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extern const efuse_desc_t *ESP_EFUSE_UART_DOWNLOAD_DIS[];
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extern const efuse_desc_t *ESP_EFUSE_WR_DIS_FLASH_CRYPT_CNT[];
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extern const efuse_desc_t *ESP_EFUSE_WR_DIS_BLK1[];
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extern const efuse_desc_t *ESP_EFUSE_WR_DIS_BLK2[];
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extern const efuse_desc_t *ESP_EFUSE_WR_DIS_BLK3[];
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extern const efuse_desc_t *ESP_EFUSE_RD_DIS_BLK1[];
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extern const efuse_desc_t *ESP_EFUSE_RD_DIS_BLK2[];
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extern const efuse_desc_t *ESP_EFUSE_RD_DIS_BLK3[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_VER_DIS_APP_CPU[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_VER_DIS_BT[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_VER_PKG[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_CPU_FREQ_LOW[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_CPU_FREQ_RATED[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_VER_REV1[];
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extern const efuse_desc_t *ESP_EFUSE_CHIP_VER_REV2[];
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extern const efuse_desc_t *ESP_EFUSE_XPD_SDIO_REG[];
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extern const efuse_desc_t *ESP_EFUSE_SDIO_TIEH[];
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extern const efuse_desc_t *ESP_EFUSE_SDIO_FORCE[];
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extern const efuse_desc_t *ESP_EFUSE_ADC_VREF_AND_SDIO_DREF[];
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extern const efuse_desc_t *ESP_EFUSE_ADC1_TP_LOW[];
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extern const efuse_desc_t *ESP_EFUSE_ADC2_TP_LOW[];
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extern const efuse_desc_t *ESP_EFUSE_ADC1_TP_HIGH[];
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extern const efuse_desc_t *ESP_EFUSE_ADC2_TP_HIGH[];
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extern const efuse_desc_t *ESP_EFUSE_SECURE_VERSION[];
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#ifdef __cplusplus
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}
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#endif
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@@ -58,6 +58,12 @@ config ESP32_BT
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---help---
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No yet implemented
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config ESP32_EFUSE
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bool "EFUSE support"
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default n
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---help---
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Enable ESP32 efuse support.
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config ESP32_EMAC
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bool "Ethernet MAC"
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default n
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@@ -128,6 +128,12 @@ CHIP_CSRCS += esp32_psram.c
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CHIP_CSRCS += esp32_himem.c
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endif
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ifeq ($(CONFIG_ESP32_EFUSE),y)
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CHIP_CSRCS += esp32_efuse.c
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CHIP_CSRCS += esp32_efuse_table.c
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CHIP_CSRCS += esp32_efuse_lowerhalf.c
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endif
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ifeq ($(CONFIG_ESP32_EMAC),y)
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CHIP_CSRCS += esp32_emac.c
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endif
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File diff suppressed because it is too large
Load Diff
@@ -0,0 +1,63 @@
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/****************************************************************************
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* arch/xtensa/src/esp32/esp32_efuse.h
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/* Type of eFuse blocks for ESP32 */
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typedef enum
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{
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EFUSE_BLK0 = 0, /* Reserved. */
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EFUSE_BLK1 = 1, /* Used for Flash Encryption. */
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EFUSE_BLK2 = 2, /* Used for Secure Boot. */
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EFUSE_BLK3 = 3, /* Uses for the purpose of the user. */
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EFUSE_BLK_MAX
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} esp_efuse_block_t;
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/* This is type of function that will handle the efuse field register.
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*
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* num_reg The register number in the block.
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* efuse_block Block number.
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* bit_start Start bit in the register.
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* bit_count The number of bits used in the register.
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* arr A pointer to an array or variable.
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* bits_counter Counter bits.
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*
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* return
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* - OK: The operation was successfully completed.
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* - other efuse component errors.
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*/
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typedef int (*efuse_func_proc_t) (unsigned int num_reg,
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int starting_bit_num_in_reg,
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int num_bits_used_in_reg,
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void *arr, int *bits_counter);
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/****************************************************************************
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* Public Functions Prototypes
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****************************************************************************/
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int esp_efuse_read_field(const efuse_desc_t *field[], void *dst,
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size_t dst_size_bits);
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int esp_efuse_write_field(const efuse_desc_t *field[],
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const void *src, size_t src_size_bits);
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void esp_efuse_burn_efuses(void);
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int esp32_efuse_initialize(FAR const char *devpath);
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@@ -0,0 +1,193 @@
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/****************************************************************************
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* arch/xtensa/src/esp32/esp32_efuse.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <stdlib.h>
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#include <debug.h>
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#include <assert.h>
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#include <nuttx/kmalloc.h>
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#include <nuttx/efuse/efuse.h>
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#include "hardware/esp32_soc.h"
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#include "esp32_efuse.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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struct esp32_efuse_lowerhalf_s
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{
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FAR const struct efuse_ops_s *ops; /* Lower half operations */
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void *upper; /* Pointer to efuse_upperhalf_s */
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};
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/****************************************************************************
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* Private Functions Prototypes
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****************************************************************************/
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/* "Lower half" driver methods **********************************************/
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static int esp32_efuse_read_field(FAR struct efuse_lowerhalf_s *lower,
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const efuse_desc_t *field[],
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FAR uint8_t *data, size_t size);
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static int esp32_efuse_write_field(FAR struct efuse_lowerhalf_s *lower,
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const efuse_desc_t *field[],
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FAR const uint8_t *data,
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size_t size);
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static int efuse_ioctl(FAR struct efuse_lowerhalf_s *lower, int cmd,
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unsigned long arg);
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/****************************************************************************
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* Private Data
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****************************************************************************/
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/* "Lower half" driver methods */
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static const struct efuse_ops_s g_esp32_efuse_ops =
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{
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.read_field = esp32_efuse_read_field,
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.write_field = esp32_efuse_write_field,
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.ioctl = efuse_ioctl,
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};
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/* EFUSE lower-half */
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static struct esp32_efuse_lowerhalf_s g_esp32_efuse_lowerhalf =
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{
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.ops = &g_esp32_efuse_ops,
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.upper = NULL,
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};
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/****************************************************************************
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* Private functions
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****************************************************************************/
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static int esp32_efuse_read_field(FAR struct efuse_lowerhalf_s *lower,
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const efuse_desc_t *field[],
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uint8_t *data, size_t bits_len)
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{
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int ret = OK;
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/* Read the requested field */
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ret = esp_efuse_read_field(field, data, bits_len);
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return ret;
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}
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static int esp32_efuse_write_field(FAR struct efuse_lowerhalf_s *lower,
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const efuse_desc_t *field[],
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const uint8_t *data, size_t bits_len)
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{
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irqstate_t flags;
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int ret = OK;
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flags = enter_critical_section();
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/* Write the blob data to the field */
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ret = esp_efuse_write_field(field, data, bits_len);
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/* Burn the EFUSEs */
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esp_efuse_burn_efuses();
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leave_critical_section(flags);
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return ret;
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}
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/****************************************************************************
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* Name: efuse_ioctl
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****************************************************************************/
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static int efuse_ioctl(FAR struct efuse_lowerhalf_s *lower,
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int cmd, unsigned long arg)
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{
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int ret = OK;
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switch (cmd)
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{
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/* We don't have proprietary EFUSE ioctls */
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default:
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{
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minfo("Unrecognized cmd: %d\n", cmd);
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ret = -ENOTTY;
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}
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break;
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}
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return ret;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: esp32_efuse_initialize
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*
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* Description:
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* Initialize the efuse driver. The efuse is initialized
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* and registered as 'devpath'.
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*
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* Input Parameters:
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* devpath - The full path to the efuse. This should
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* be of the form /dev/efuse
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*
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* Returned Values:
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* Zero (OK) is returned on success; a negated errno value is returned on
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* any failure.
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*
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****************************************************************************/
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int esp32_efuse_initialize(FAR const char *devpath)
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{
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struct esp32_efuse_lowerhalf_s *lower = NULL;
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int ret = OK;
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DEBUGASSERT(devpath);
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lower = &g_esp32_efuse_lowerhalf;
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/* Register the efuser upper driver */
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lower->upper = efuse_register(devpath,
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(FAR struct efuse_lowerhalf_s *)lower);
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if (lower->upper == NULL)
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{
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/* The actual cause of the failure may have been a failure to allocate
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* perhaps a failure to register the efuser driver (such as if the
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* 'devpath' were not unique). We know here but we return EEXIST to
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* indicate the failure (implying the non-unique devpath).
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*/
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ret = -EEXIST;
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goto errout;
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}
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errout:
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return ret;
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}
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File diff suppressed because it is too large
Load Diff
@@ -21,6 +21,12 @@
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#ifndef __ARCH_XTENSA_INCLUDE_EFUSE_REG_H
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#define __ARCH_XTENSA_INCLUDE_EFUSE_REG_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "esp32_soc.h"
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#define EFUSE_BLK0_RDATA0_REG (DR_REG_EFUSE_BASE + 0x000)
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/* EFUSE_RD_FLASH_CRYPT_CNT : RO ;bitpos:[26:20] ;default: 7'b0 ;
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@@ -215,6 +215,7 @@
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#define DR_REG_RTCIO_BASE 0x3ff48400
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#define DR_REG_SARADC_BASE 0x3ff48800
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#define DR_REG_IO_MUX_BASE 0x3ff49000
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#define DR_REG_EFUSE_BASE 0x3ff5a000
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#define DR_REG_RTCMEM0_BASE 0x3ff61000
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#define DR_REG_RTCMEM1_BASE 0x3ff62000
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#define DR_REG_RTCMEM2_BASE 0x3ff63000
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@@ -170,6 +170,14 @@ int esp32_bringup(void)
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}
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#endif
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#if defined(CONFIG_ESP32_EFUSE)
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ret = esp32_efuse_initialize("/dev/efuse");
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if (ret < 0)
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{
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syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);
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}
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#endif
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#ifdef CONFIG_FS_PROCFS
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/* Mount the procfs file system */
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