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/*
* SPDX-FileCopyrightText: 2015-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdlib.h>
#include "spi_flash_chip_generic.h"
#include "spi_flash_defs.h"
#include "esp_log.h"
#include "hal/spi_flash_hal.h"
/* Driver for MXIC flash chip */
esp_err_t spi_flash_chip_mxic_probe(esp_flash_t *chip, uint32_t flash_id)
{
/* Check manufacturer and product IDs match our desired masks */
const uint8_t MFG_ID = 0xC2;
if (flash_id >> 16 != MFG_ID) {
return ESP_ERR_NOT_FOUND;
}
if (chip->read_mode >= SPI_FLASH_OPI_FLAG) {
// The code here serve for ordinary mxic chip. If opi mode has been selected, go `spi_flash_chip_mxic_opi.c`
return ESP_ERR_NOT_FOUND;
}
return ESP_OK;
}
esp_err_t spi_flash_chip_mxic_detect_size(esp_flash_t *chip, uint32_t *size)
{
uint32_t id = chip->chip_id;
*size = 0;
/* Can't detect size unless the high byte of the product ID matches the same convention, which is usually 0x40 or
* 0xC0 or similar. */
if (((id & 0xFFFF) == 0x0000) || ((id & 0xFFFF) == 0xFFFF)) {
return ESP_ERR_FLASH_UNSUPPORTED_CHIP;
}
uint32_t mem_density = (id & 0xFF);
if (mem_density > 0x30) { // For OPI chips
mem_density -= 0x20;
}
*size = 1 << mem_density;
return ESP_OK;
}
esp_err_t spi_flash_chip_issi_set_io_mode(esp_flash_t *chip);
esp_err_t spi_flash_chip_issi_get_io_mode(esp_flash_t *chip, esp_flash_io_mode_t* out_io_mode);
// Use the same implementation as ISSI chips
#define spi_flash_chip_mxic_set_io_mode spi_flash_chip_issi_set_io_mode
#define spi_flash_chip_mxic_get_io_mode spi_flash_chip_issi_get_io_mode
#define spi_flash_chip_mxic_read_reg spi_flash_chip_generic_read_reg
static const char chip_name[] = "mxic";
spi_flash_caps_t spi_flash_chip_mxic_get_caps(esp_flash_t *chip)
{
spi_flash_caps_t caps_flags = 0;
// 32-bit-address flash is not supported
// flash-suspend is not supported
// reading unique id is not supported.
return caps_flags;
}
// The mxic chip can use the functions for generic chips except from set read mode and probe,
// So we only replace these two functions.
const spi_flash_chip_t esp_flash_chip_mxic = {
.name = chip_name,
.timeout = &spi_flash_chip_generic_timeout,
.probe = spi_flash_chip_mxic_probe,
.reset = spi_flash_chip_generic_reset,
.detect_size = spi_flash_chip_mxic_detect_size,
.erase_chip = spi_flash_chip_generic_erase_chip,
.erase_sector = spi_flash_chip_generic_erase_sector,
.erase_block = spi_flash_chip_generic_erase_block,
.sector_size = 4 * 1024,
.block_erase_size = 64 * 1024,
.get_chip_write_protect = spi_flash_chip_generic_get_write_protect,
.set_chip_write_protect = spi_flash_chip_generic_set_write_protect,
.num_protectable_regions = 0,
.protectable_regions = NULL,
.get_protected_regions = NULL,
.set_protected_regions = NULL,
.read = spi_flash_chip_generic_read,
.write = spi_flash_chip_generic_write,
.program_page = spi_flash_chip_generic_page_program,
.page_size = 256,
.write_encrypted = spi_flash_chip_generic_write_encrypted,
.wait_idle = spi_flash_chip_generic_wait_idle,
.set_io_mode = spi_flash_chip_mxic_set_io_mode,
.get_io_mode = spi_flash_chip_mxic_get_io_mode,
.read_reg = spi_flash_chip_mxic_read_reg,
.yield = spi_flash_chip_generic_yield,
.sus_setup = spi_flash_chip_generic_suspend_cmd_conf,
.read_unique_id = spi_flash_chip_generic_read_unique_id_none,
.get_chip_caps = spi_flash_chip_mxic_get_caps,
.config_host_io_mode = spi_flash_chip_generic_config_host_io_mode,
};
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