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