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https://github.com/espressif/esp-idf.git
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cf2062f1d7
We fixed some flash bugs in bootloader, but for the users used the old vrsion bootloader, they can not fix these bugs via OTA, the solution is add these updates in app startup. These updates include: 1. SPI flash gpio matrix and drive strength configuration 2. SPI flash clock configuration 3. SPI flash read dummy configuration 4. SPI flash cs timing configuration 5. Update flash id of g_rom_flashchip
72 lines
1.9 KiB
C
72 lines
1.9 KiB
C
// Copyright 2018 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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#pragma once
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#include "esp_image_format.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief Update the flash id in g_rom_flashchip(global esp_rom_spiflash_chip_t structure).
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*
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* @return None
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*/
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void bootloader_flash_update_id();
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/**
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* @brief Set the flash CS setup and hold time.
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*
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* @note CS setup time is recomemded to be 1.5T, and CS hold time is recommended to be 2.5T.
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* cs_setup = 1, cs_setup_time = 0; cs_hold = 1, cs_hold_time = 1.
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*
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* @return None
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*/
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void bootloader_flash_cs_timing_config();
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/**
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* @brief Configure SPI flash clock.
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*
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* @note This function only set clock frequency for SPI0.
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*
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* @param pfhdr Pointer to App image header, from where to fetch flash settings.
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*
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* @return None
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*/
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void bootloader_flash_clock_config(const esp_image_header_t* pfhdr);
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/**
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* @brief Configure SPI flash gpio, include the IO matrix and drive strength configuration.
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*
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* @param pfhdr Pointer to App image header, from where to fetch flash settings.
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*
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* @return None
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*/
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void bootloader_flash_gpio_config(const esp_image_header_t* pfhdr);
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/**
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* @brief Configure SPI flash read dummy based on different mode and frequency.
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*
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* @param pfhdr Pointer to App image header, from where to fetch flash settings.
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*
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* @return None
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*/
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void bootloader_flash_dummy_config(const esp_image_header_t* pfhdr);
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#ifdef __cplusplus
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}
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#endif
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