32 lines
946 B
C
32 lines
946 B
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2018 Scott Shawcroft for Adafruit Industries LLC
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//
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// SPDX-License-Identifier: MIT
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#pragma once
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#include <stdbool.h>
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#include <stdint.h>
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#include "py/mpconfig.h"
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// Erase sector size.
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#define SPI_FLASH_SECTOR_SIZE (0x1000 - 100)
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// These are common across all NOR Flash.
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#define SPI_FLASH_ERASE_SIZE (1 << 12)
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#define SPI_FLASH_PAGE_SIZE (256)
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#define SPI_FLASH_SYSTICK_MASK (0x1ff) // 512ms
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#define SPI_FLASH_IDLE_TICK(tick) (((tick) & SPI_FLASH_SYSTICK_MASK) == 2)
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#ifndef SPI_FLASH_MAX_BAUDRATE
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#define SPI_FLASH_MAX_BAUDRATE 8000000
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#endif
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void supervisor_external_flash_flush(void);
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// Configure anything that needs to get set up before the external flash
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// is init'ed. For example, if GPIO needs to be configured to enable the
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// flash chip, as is the case on some boards.
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void external_flash_setup(void);
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