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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2025 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <stdbool.h>
#include "boardctrl.h"
#include "qspi.h"
#if BUILDING_MBOOT
#include "mboot/mboot.h"
#endif
// Use PYBD_SF2 as base configuration.
#include "boards/PYBD_SF2/board_init.c"
// Adesto AT25SF161 16-MBit.
static const mp_spiflash_chip_params_t chip_params_at25sf161 = {
.jedec_id = 0x01861f,
.memory_size_bytes_log2 = 21,
.qspi_prescaler = 3, // maximum frequency 104MHz
.qread_num_dummy = 2,
};
// Infineon S25FL064 64-MBit.
static const mp_spiflash_chip_params_t chip_params_s25fl064 = {
.jedec_id = 0x176001,
.memory_size_bytes_log2 = 23,
.qspi_prescaler = 2, // maximum frequency 108MHz
.qread_num_dummy = 4,
};
// Selection of possible SPI flash chips.
static const mp_spiflash_chip_params_t *const chip_params_table[] = {
&chip_params_at25sf161,
&chip_params_s25fl064,
};
void board_early_init_sf6(void) {
// Initialise default SPI flash parameters.
MICROPY_BOARD_SPIFLASH_CHIP_PARAMS0 = &chip_params_at25sf161;
MICROPY_BOARD_SPIFLASH_CHIP_PARAMS1 = &chip_params_at25sf161;
// Continue with standard board early init.
board_early_init();
}
int mp_spiflash_detect(mp_spiflash_t *spiflash, int ret, uint32_t devid) {
if (ret != 0) {
// Could not identify flash. Succeed anyway using default chip parameters.
return 0;
}
// Try to detect the SPI flash based on the JEDEC id.
for (size_t i = 0; i < MP_ARRAY_SIZE(chip_params_table); ++i) {
if (devid == chip_params_table[i]->jedec_id) {
spiflash->chip_params = chip_params_table[i];
if (spiflash->config->bus_kind == MP_SPIFLASH_BUS_QSPI) {
// Reinitialise the QSPI but to set new size, prescaler and dummy bytes.
uint8_t num_dummy = spiflash->chip_params->qread_num_dummy;
spiflash->config->bus.u_qspi.proto->ioctl(spiflash->config->bus.u_qspi.data, MP_QSPI_IOCTL_INIT, num_dummy);
}
break;
}
}
return 0;
}
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