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bea7645b2e
This commit implements `vfs.rom_ioctl()` to query, erase and write both
internal and external flash, depending on how the board configures its
flash memory.
A board can configure ROM as follows.
To use internal flash memory:
#define MICROPY_HW_ROMFS_ENABLE_INTERNAL_FLASH (1)
To use external flash memory (QSPI memory mapped):
#define MICROPY_HW_ROMFS_ENABLE_EXTERNAL_QSPI (1)
#define MICROPY_HW_ROMFS_QSPI_SPIFLASH_OBJ (&spi_obj)
Then the partition must be defined as symbols in the linker script:
_micropy_hw_romfs_part1_start
_micropy_hw_romfs_part1_size
And finally the partition needs to be enabled:
#define MICROPY_HW_ROMFS_ENABLE_PART1 (1)
There's support for a second, optional partition via:
_micropy_hw_romfs_part2_start
_micropy_hw_romfs_part2_size
#define MICROPY_HW_ROMFS_ENABLE_PART1 (1)
Signed-off-by: Damien George <damien@micropython.org>
44 lines
1.6 KiB
C
44 lines
1.6 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2018 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#ifndef MICROPY_INCLUDED_STM32_QSPI_H
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#define MICROPY_INCLUDED_STM32_QSPI_H
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#include "drivers/bus/qspi.h"
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#define QSPI_MAP_ADDR (0x90000000)
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#define QSPI_MAP_ADDR_MAX (0xa0000000)
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extern const mp_qspi_proto_t qspi_proto;
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void qspi_init(void);
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void qspi_memory_map(void);
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static inline bool qspi_is_valid_addr(uint32_t addr) {
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return QSPI_MAP_ADDR <= addr && addr < QSPI_MAP_ADDR_MAX;
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}
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#endif // MICROPY_INCLUDED_STM32_QSPI_H
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