Marvell Armada 385 Development Board AP (DB-88F6820-AP) OpenWrt Firmware
The Marvell Armada 385 Development Board AP (DB-88F6820-AP) is supported by OpenWrt on the mvebu/cortexa9 target. 4 firmware images are available from the official OpenWrt 25.12.5 stable release — download one below, or build a custom OpenWrt image for this device with your own package selection.
Build matrix
Supported firmware versions
| Distribution | Version | Target | Profile |
|---|---|---|---|
| OpenWrt | 25.12.5 | mvebu/cortexa9 | marvell_a385-db-ap |
Downloads
Download images
OpenWrt 25.12.5 · mvebu/cortexa9
| Image | Type | sha256 |
|---|---|---|
| openwrt-25.12.5-mvebu-cortexa9-marvell_a385-db-ap-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | 9864627ef4f3… |
| openwrt-25.12.5-mvebu-cortexa9-marvell_a385-db-ap-initramfs-kernel.bin Minimal kernel image, useful for first install or recovery. | kernel | 6ca8315f6c08… |
| openwrt-25.12.5-mvebu-cortexa9-marvell_a385-db-ap-targz-rootfs.tar.gz Rootfs archive for Docker / LXC containers. | rootfs | c2806c9e7302… |
| openwrt-25.12.5-mvebu-cortexa9-marvell_a385-db-ap-squashfs-factory.img For first-time flash from stock firmware. | factory | f2c7caaad47d… |
Downloads are served by the official OpenWrt mirrors — unchanged upstream stable builds.
Packages & install
Default packages & installation
Default packages
Every image for the Marvell Armada 385 Development Board AP (DB-88F6820-AP) ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.
Target default packages (26)
apk-mbedtls base-files ca-bundle dnsmasq dropbear firewall4 fstools kmod-gpio-button-hotplug kmod-nft-offload libc libgcc libustream-mbedtls logd mtd netifd nftables odhcp6c odhcpd-ipv6only ppp ppp-mod-pppoe procd-ujail uboot-envtools uci uclient-fetch urandom-seed urngd
Installation notes
- First install from stock firmware: flash the factoryimage through the vendor firmware's upgrade page or recovery mode.
- Already running OpenWrt or ImmortalWrt: flash the sysupgrade image from LuCI (System → Backup / Flash Firmware) or with the sysupgrade command.
- The kernel / initramfs image boots from RAM without writing to flash — useful for a first install or for recovering from a failed flash.
- Verify your download against the published checksum before flashing:
$ sha256sum openwrt-25.12.5-mvebu-cortexa9-marvell_a385-db-ap-squashfs-sysupgrade.bin 9864627ef4f3bafb27201b7398d7fa8316c1208fa6da924ac72feb54dccf6962 openwrt-25.12.5-mvebu-cortexa9-marvell_a385-db-ap-squashfs-sysupgrade.bin
Build custom firmware
Need more than the default image for the Marvell Armada 385 Development Board AP (DB-88F6820-AP)? Pick your packages — LuCI apps, themes, VPN clients — set the basics, and get a ready-to-flash OpenWrt image assembled from official packages in minutes.
Customize firmware for this deviceRelated
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Upstream
Upstream & source
Images are assembled from packages compiled and published by the upstream OpenWrt and ImmortalWrt projects. The complete corresponding source code is available from those projects under the GPL.