mirror of
https://github.com/espressif/esp-idf
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74 lines
2.2 KiB
C
74 lines
2.2 KiB
C
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// Copyright 2017-2020 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "esp_efuse.h"
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#include "esp_efuse_utility.h"
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#include "esp_efuse_table.h"
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#include "stdlib.h"
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#include "esp_types.h"
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#include "esp32c3/rom/efuse.h"
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#include "assert.h"
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#include "esp_err.h"
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#include "esp_log.h"
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#include "soc/efuse_periph.h"
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#include "bootloader_random.h"
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#include "sys/param.h"
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const static char *TAG = "efuse";
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// Contains functions that provide access to efuse fields which are often used in IDF.
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// Returns chip version from efuse
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uint8_t esp_efuse_get_chip_ver(void)
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{
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uint32_t chip_ver = 0;
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// ESP32C3 does not have this field
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return chip_ver;
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}
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// Returns chip package from efuse
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uint32_t esp_efuse_get_pkg_ver(void)
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{
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uint32_t pkg_ver = 0;
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// ESP32C3 does not have this field
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return pkg_ver;
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}
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// Disable BASIC ROM Console via efuse
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void esp_efuse_disable_basic_rom_console(void)
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{
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uint8_t dis_legacy_spi_boot = 0;
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esp_efuse_read_field_blob(ESP_EFUSE_DIS_LEGACY_SPI_BOOT, &dis_legacy_spi_boot, 1);
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if (dis_legacy_spi_boot == 0) {
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esp_efuse_write_field_cnt(ESP_EFUSE_DIS_LEGACY_SPI_BOOT, 1);
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ESP_EARLY_LOGI(TAG, "Disable Disable_Legcy_SPI_boot mode...");
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}
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}
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void esp_efuse_write_random_key(uint32_t blk_wdata0_reg)
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{
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uint32_t buf[8];
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uint8_t raw[24];
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bootloader_fill_random(buf, sizeof(buf));
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ESP_LOGV(TAG, "Writing random values to address 0x%08x", blk_wdata0_reg);
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for (int i = 0; i < 8; i++) {
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ESP_LOGV(TAG, "EFUSE_BLKx_WDATA%d_REG = 0x%08x", i, buf[i]);
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REG_WRITE(blk_wdata0_reg + 4 * i, buf[i]);
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}
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bzero(buf, sizeof(buf));
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bzero(raw, sizeof(raw));
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}
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