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73 lines
1.7 KiB
C
73 lines
1.7 KiB
C
/*
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* SPDX-FileCopyrightText: 2019-2021 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* Currently the MSPI timing tuning related APIs are designed to be private.
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* Because:
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* 1. now we don't split SPI0 and SPI1, we don't have a component for SPI0, including PSRAM, Cache, etc..
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* 2. SPI0 and SPI1 are strongly coupling.
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*
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* In the future, we may consider creating a component for SPI0, and spi_flash component will only work on SPI1 (and it
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* can rely on SPI0). Therefore, we can put these APIs there.
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*
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*/
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#pragma once
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#if CONFIG_IDF_TARGET_ESP32
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#include "esp32/rom/spi_flash.h"
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#elif CONFIG_IDF_TARGET_ESP32S2
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#include "esp32s2/rom/spi_flash.h"
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#elif CONFIG_IDF_TARGET_ESP32C3
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#include "esp32c3/rom/spi_flash.h"
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#elif CONFIG_IDF_TARGET_ESP32S3
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#include "esp32s3/rom/spi_flash.h"
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#endif
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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 Register ROM functions and init flash device registers to make use of octal flash
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*/
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esp_err_t esp_opiflash_init(void);
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/**
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* @brief Make MSPI work under 20Mhz
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*/
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void spi_timing_enter_mspi_low_speed_mode(void);
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/**
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* @brief Make MSPI work under the frequency as users set
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*/
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void spi_timing_enter_mspi_high_speed_mode(void);
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/**
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* @brief Tune MSPI flash timing to make it work under high frequency
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*/
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void spi_timing_flash_tuning(void);
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/**
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* @brief Tune MSPI psram timing to make it work under high frequency
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*/
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void spi_timing_psram_tuning(void);
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/**
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* @brief To initislize the MSPI pins
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*/
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void esp_mspi_pin_init(void);
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/**
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* @brief Set SPI1 registers to make ROM functions work
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* @note This function is used for setting SPI1 registers to the state that ROM SPI functions work
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*/
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void spi_flash_set_rom_required_regs(void);
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#ifdef __cplusplus
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}
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#endif
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