esp-idf/components/spi_flash/spi_flash_chip_mxic.c

90 wiersze
3.1 KiB
C

// Copyright 2015-2020 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <stdlib.h>
#include "spi_flash_chip_generic.h"
#include "spi_flash_defs.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;
}
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";
esp_err_t spi_flash_chip_mxic_suspend_cmd_conf(esp_flash_t *chip)
{
spi_flash_sus_cmd_conf sus_conf = {
.sus_mask = 0x06,
.cmd_rdsr = CMD_RDSCUR,
.sus_cmd = CMD_SUSPEND,
.res_cmd = CMD_RESUME,
};
return chip->host->driver->sus_setup(chip->host, &sus_conf);
}
// 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_generic_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_mxic_suspend_cmd_conf,
};