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0a433a02e1
The flash clock frequency may have been set to a different value by a bootloader. Set the frequency according to the configured value. Use a table of pre-calculated dividers to get the closest value for the flash frequency, achieving for MIMXRT10xx: 30 -> 30.85 MHz 50 -> 49.65 MHz 60 -> 60 MHz 75 -> 75.13 MHz 80 -> 80 MHz 100 -> 99.31 Mhz 133 -> 132.92 MHz 166 -> 166.15 MHz for MIMXRT1176: 30 -> 31 MHz 50 -> 52.8 MJz 60 -> 58.7 MHz 75 -> 75.4 MHz 80 -> 75.4 MHz 100 -> 105.6 MHz 133 -> 132 MHz 166 -> 176 MHz Signed-off-by: robert-hh <robert@hammelrath.com>
77 lines
2.8 KiB
C
77 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) 2013, 2014 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_MIMXRT_HAL_FLEXSPI_HYPER_FLASH_H
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#define MICROPY_INCLUDED_MIMXRT_HAL_FLEXSPI_HYPER_FLASH_H
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#include "mpconfigboard.h"
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#include "flexspi_flash_config.h"
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#include "fsl_flexspi.h"
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// #include BOARD_FLASH_CONFIG_HEADER_H
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#if defined MICROPY_HW_FLASH_INTERNAL
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#define BOARD_FLEX_SPI FLEXSPI2
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#define BOARD_FLEX_SPI_ADDR_BASE FlexSPI2_AMBA_BASE
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#elif defined MIMXRT117x_SERIES
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#define BOARD_FLEX_SPI FLEXSPI1
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#define BOARD_FLEX_SPI_ADDR_BASE FlexSPI1_AMBA_BASE
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#else
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#define BOARD_FLEX_SPI FLEXSPI
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#define BOARD_FLEX_SPI_ADDR_BASE FlexSPI_AMBA_BASE
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#endif
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// Defined in boards flash_config.c
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extern flexspi_nor_config_t qspiflash_config;
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status_t flexspi_nor_hyperflash_cfi(FLEXSPI_Type *base);
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void flexspi_hyper_flash_init(void);
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void flexspi_nor_update_lut_clk(uint32_t freq_index);
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status_t flexspi_nor_flash_erase_sector(FLEXSPI_Type *base, uint32_t address);
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status_t flexspi_nor_flash_erase_block(FLEXSPI_Type *base, uint32_t address);
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status_t flexspi_nor_flash_page_program(FLEXSPI_Type *base, uint32_t address, const uint32_t *src, uint32_t size);
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static inline uint32_t flexspi_get_frequency(void) {
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uint32_t div;
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uint32_t fre;
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/* Clock divider:
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000 divided by 1
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001 divided by 2
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010 divided by 3
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011 divided by 4
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100 divided by 5
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101 divided by 6
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110 divided by 7
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111 divided by 8
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*/
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div = CLOCK_GetDiv(kCLOCK_FlexspiDiv);
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/* Get frequency */
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fre = CLOCK_GetFreq(kCLOCK_Usb1PllPfd0Clk) / (div + 0x01U);
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return fre;
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}
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#endif // MICROPY_INCLUDED_MIMXRT_HAL_FLEXSPI_HYPER_FLASH_H
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