diff --git a/ports/espressif/boards/m5stack_core_fire/sdkconfig b/ports/espressif/boards/m5stack_core_fire/sdkconfig
new file mode 100644
index 0000000000..d77fe64525
--- /dev/null
+++ b/ports/espressif/boards/m5stack_core_fire/sdkconfig
@@ -0,0 +1,58 @@
+CONFIG_ESP32_ECO3_CACHE_LOCK_FIX=y
+CONFIG_ESP32_SPIRAM_SUPPORT=y
+CONFIG_ESP32_REV_MIN_3=y
+
+#
+# SPI RAM config
+#
+CONFIG_SPIRAM_TYPE_AUTO=y
+# CONFIG_SPIRAM_TYPE_ESPPSRAM16 is not set
+# CONFIG_SPIRAM_TYPE_ESPPSRAM32 is not set
+#CONFIG_SPIRAM_TYPE_ESPPSRAM64 is not set
+CONFIG_SPIRAM_SIZE=8388608
+# end of SPI RAM config
+
+#
+# PSRAM clock and cs IO for ESP32
+#
+CONFIG_D0WD_PSRAM_CLK_IO=17
+CONFIG_D0WD_PSRAM_CS_IO=16
+# end of PSRAM clock and cs IO for ESP32
+
+# CONFIG_SPIRAM_FETCH_INSTRUCTIONS is not set
+# CONFIG_SPIRAM_RODATA is not set
+CONFIG_SPIRAM_SPEED_80M=y
+# CONFIG_SPIRAM_SPEED_40M is not set
+# CONFIG_SPIRAM_SPEED_26M is not set
+# CONFIG_SPIRAM_SPEED_20M is not set
+CONFIG_SPIRAM=y
+CONFIG_SPIRAM_BOOT_INIT=y
+# CONFIG_SPIRAM_IGNORE_NOTFOUND is not set
+CONFIG_SPIRAM_USE_MEMMAP=y
+# CONFIG_SPIRAM_USE_CAPS_ALLOC is not set
+# CONFIG_SPIRAM_USE_MALLOC is not set
+CONFIG_SPIRAM_MEMTEST=y
+# CONFIG_SPIRAM_ALLOW_BSS_SEG_EXTERNAL_MEMORY is not set
+#
+# LWIP
+#
+CONFIG_LWIP_LOCAL_HOSTNAME="M5StaskCoreFire"
+# end of LWIP
+
+# Uncomment (remove ###) to send ESP_LOG  output to TX/RX pins
+### #
+### # ESP System Settings
+### #
+### CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
+### # CONFIG_ESP_SYSTEM_PANIC_SILENT_REBOOT is not set
+### CONFIG_ESP_CONSOLE_UART_CUSTOM=y
+### CONFIG_ESP_CONSOLE_NONE is not set
+### CONFIG_ESP_CONSOLE_UART=y
+### CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_0=y
+### # CONFIG_ESP_CONSOLE_UART_CUSTOM_NUM_1 is not set
+### CONFIG_ESP_CONSOLE_UART_NUM=0
+### CONFIG_ESP_CONSOLE_UART_TX_GPIO=17
+### CONFIG_ESP_CONSOLE_UART_RX_GPIO=16
+### CONFIG_ESP_CONSOLE_UART_BAUDRATE=115200
+### # CONFIG_ESP_SYSTEM_CHECK_INT_LEVEL_5 is not set
+### # end of ESP System Settings