spi_flash: add support for th 1M flash

components/spi_flash/spi_flash_chip_th.c

@@ -0,0 +1,78 @@
+/*
+ * SPDX-FileCopyrightText: 2015-2021 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"
+
+esp_err_t spi_flash_chip_th_probe(esp_flash_t *chip, uint32_t flash_id)
+{
+    /* Check manufacturer and product IDs match our desired masks */
+    const uint8_t MFG_ID = 0xcd;
+    if (flash_id >> 16 != MFG_ID) {
+        return ESP_ERR_NOT_FOUND;
+    }
+
+    const uint16_t FLASH_ID_MASK = 0xFF00;
+    const uint16_t FLASH_ID_VALUE = 0x6000;
+    if ((flash_id & FLASH_ID_MASK) != FLASH_ID_VALUE) {
+        return ESP_ERR_NOT_FOUND;
+    }
+
+    return ESP_OK;
+}
+
+spi_flash_caps_t spi_flash_chip_th_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
+    // flash read unique id.
+    caps_flags |= SPI_FLASH_CHIP_CAP_UNIQUE_ID;
+    return caps_flags;
+}
+
+static const char chip_name[] = "th";
+
+// The th 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_th = {
+    .name = chip_name,
+    .timeout = &spi_flash_chip_generic_timeout,
+    .probe = spi_flash_chip_th_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_generic_set_io_mode,
+    .get_io_mode = spi_flash_chip_generic_get_io_mode,
+
+    .read_reg = spi_flash_chip_generic_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,
+    .get_chip_caps = spi_flash_chip_th_get_caps,
+    .config_host_io_mode = spi_flash_chip_generic_config_host_io_mode,
+};