esp-idf/components/bootloader_support/include_bootloader/bootloader_init.h

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// Copyright 2018 Espressif Systems (Shanghai) PTE LTD
//
// Licensed 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.
#pragma once
#include "esp_err.h"
/* @brief Prepares hardware for work.
*
* Setting up:
* - Disable Cache access for both CPUs;
* - Initialise cache mmu;
* - Setting up pins and mode for SD, SPI, UART, Clocking.
* @return ESP_OK - If the setting is successful.
* ESP_FAIL - If the setting is not successful.
*/
esp_err_t bootloader_init();