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92f056d58f
The byte order (endianness) seems to be swapped when read in 8D-8D-8D in XIP mode, for most flashes, with the exception of MX which seems to swap half-words. This commit adds a flash setting to allow parts to enable half-word swap when data is written, to fix this issue. By default, only endianness is fixed. Tested with both MX and ISSI parts on AE3, flash test and simple file write/read. Signed-off-by: iabdalkader <i.abdalkader@gmail.com>
83 lines
2.8 KiB
C
83 lines
2.8 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) 2024 OpenMV LLC.
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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 __OSPI_FLASH_SETTINGS_H__
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#define __OSPI_FLASH_SETTINGS_H__
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#include <stdint.h>
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#include "ospi_flash.h"
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// Macronix MX25
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#define OSPI_FLASH_SETTINGS_MX25 \
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.flash_init = ospi_flash_mx_init, \
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.octal_mode = OSPI_FLASH_OCTAL_MODE_DDD, \
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.rxds = true, \
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.bswap16 = true, \
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.inst_len = OSPI_INST_L_16bit, \
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.xip_data_len = OSPI_DATA_L_16bit, \
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.read_sr = 0x05fa, \
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.read_sr_dummy_cycles = 4, \
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.write_en = 0x06f9, \
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.read_id = 0x9f60, \
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.read_id_dummy_cycles = 4, \
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.read_command = 0xee11, \
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.write_command = 0x12ed, \
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.erase_command = 0x21de
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// Everspin EM.
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#define OSPI_FLASH_SETTINGS_EM \
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.flash_init = ospi_flash_issi_init, \
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.octal_mode = OSPI_FLASH_OCTAL_MODE_DDD, \
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.rxds = false, \
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.bswap16 = false, \
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.inst_len = OSPI_INST_L_8bit, \
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.xip_data_len = OSPI_DATA_L_16bit, \
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.read_sr = 0x05, \
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.read_sr_dummy_cycles = 8, \
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.write_en = 0x06, \
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.read_id = 0x9f, \
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.read_id_dummy_cycles = 8, \
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.read_command = 0xfd, \
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.write_command = 0xc2, \
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.erase_command = 0x21
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// ISSI IS25.
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#define OSPI_FLASH_SETTINGS_IS25 \
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.flash_init = ospi_flash_issi_init, \
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.octal_mode = OSPI_FLASH_OCTAL_MODE_DDD, \
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.rxds = false, \
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.bswap16 = false, \
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.inst_len = OSPI_INST_L_8bit, \
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.xip_data_len = OSPI_DATA_L_16bit, \
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.read_sr = 0x05, \
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.read_sr_dummy_cycles = 8, \
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.write_en = 0x06, \
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.read_id = 0x9f, \
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.read_id_dummy_cycles = 8, \
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.read_command = 0xfd, \
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.write_command = 0xc2, \
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.erase_command = 0x21
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#endif // __OSPI_FLASH_SETTINGS_H__
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