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Sometimes the flash size read from bootloader is not correct. This may forbid SPI Flash driver from reading the the area larger than the size in bootloader header. When the new config option is enabled, the latest configured ESPTOOLPY_FLAHSIZE in the app header will be used to override the value read from bootloader header.
97 lines
2.7 KiB
C
97 lines
2.7 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 "sdkconfig.h"
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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(void);
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/**
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* @brief Update the flash size in g_rom_flashchip (global esp_rom_spiflash_chip_t structure).
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*
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* @param size The size to store, in bytes.
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* @return None
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*/
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void bootloader_flash_update_size(uint32_t size);
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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(void);
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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 CONFIG_IDF_TARGET_ESP32
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/**
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* @brief Return the pin number used for custom SPI flash and/or SPIRAM WP pin
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*
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* Can be determined by eFuse values in most cases, or overriden in configuration
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*
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* This value is only meaningful if the other SPI flash pins are overriden via eFuse.
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*
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* This value is only meaningful if flash is set to QIO or QOUT mode, or if
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* SPIRAM is enabled.
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*
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* @return Pin number to use, or -1 if the default should be kept
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*/
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int bootloader_flash_get_wp_pin(void);
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#endif
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#ifdef __cplusplus
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}
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#endif
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