# Name, Type, SubType, Offset, Size
# 4MB ESP32 flash layout:
#   nvs       24KB 0x9000  - NVS settings (required by esp_wifi / http / storage)
#   phy_init  4KB  0xF000  - PHY init data (optional reserved)
#   factory   2MB app      - firmware
#   storage   ~1.9MB littlefs - card database (/spiffs)
nvs, data, nvs, 0x9000, 0x6000
phy_init, data, phy, 0xf000, 0x1000
factory, app, factory, 0x10000, 0x200000
storage, data, littlefs, 0x210000, 0x1F0000