NXP LS1021A-IoT SD Card Boot OpenWrt Firmware
- CPU
- NXP LS1021A
- RAM
- 1024 MB
- Flash
- 128 MB
The NXP LS1021A-IoT SD Card Boot is supported by OpenWrt/ImmortalWrt on the layerscape/armv7 target. 4 firmware images are available from the official OpenWrt 25.12.5 and ImmortalWrt 25.12.1 stable releases — download one below, or build a custom OpenWrt image for this device with your own package selection.
Specs
Specifications
| CPU | NXP LS1021A |
|---|---|
| CPU cores | 2 |
| CPU frequency | 1000 MHz |
| RAM | 1024 MB |
| Flash | 128 MB |
| 1 Gbit Ethernet ports | 6 |
| Switch | Realtek RTL8365MB |
Hardware data from the OpenWrt Table of Hardware; verify against your unit before flashing.
Build matrix
Supported firmware versions
| Distribution | Version | Target | Profile |
|---|---|---|---|
| OpenWrt | 25.12.5 | layerscape/armv7 | fsl_ls1021a-iot-sdboot |
| ImmortalWrt | 25.12.1 | layerscape/armv7 | fsl_ls1021a-iot-sdboot |
Downloads
Download images
OpenWrt 25.12.5 · layerscape/armv7
| Image | Type | sha256 |
|---|---|---|
| openwrt-25.12.5-layerscape-armv7-fsl_ls1021a-iot-sdboot-squashfs-sdcard.img.gz Disk image to write onto an SD card. | sdcard | 9e19def97381… |
| openwrt-25.12.5-layerscape-armv7-fsl_ls1021a-iot-sdboot-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | 8d0779ce0d2e… |
ImmortalWrt 25.12.1 · layerscape/armv7
| Image | Type | sha256 |
|---|---|---|
| immortalwrt-25.12.1-layerscape-armv7-fsl_ls1021a-iot-sdboot-squashfs-sdcard.img.gz Disk image to write onto an SD card. | sdcard | 51d6bfd455d6… |
| immortalwrt-25.12.1-layerscape-armv7-fsl_ls1021a-iot-sdboot-squashfs-sysupgrade.bin Not sure? Pick this if upgrading from OpenWrt. | sysupgrade | 52f72a46a130… |
Downloads are served by the official OpenWrt/ImmortalWrt mirrors — unchanged upstream stable builds.
Packages & install
Default packages & installation
Default packages
Every image for the NXP LS1021A-IoT SD Card Boot ships these packages by default. The customize option below lets you add or remove packages before the image is assembled.
OpenWrt 25.12.5 · layerscape/armv7
Target default packages (30)
apk-mbedtls base-files ca-bundle dnsmasq dropbear e2fsprogs firewall4 fstools kmod-nft-offload kmod-usb-dwc3 kmod-usb-storage kmod-usb3 libc libgcc libustream-mbedtls logd mkf2fs mtd netifd nftables odhcp6c odhcpd-ipv6only partx-utils ppp ppp-mod-pppoe procd-ujail uci uclient-fetch urandom-seed urngd
ImmortalWrt 25.12.1 · layerscape/armv7
Target default packages (34)
apk-openssl base-files block-mount ca-bundle default-settings-chn dnsmasq-full dropbear e2fsprogs firewall4 fstools kmod-nf-nathelper kmod-nft-offload kmod-usb-dwc3 kmod-usb-storage kmod-usb3 libc libgcc libustream-openssl logd luci mkf2fs mtd netifd nftables odhcp6c odhcpd-ipv6only partx-utils ppp ppp-mod-pppoe procd-ujail uci uclient-fetch urandom-seed urngd
Installation notes
- Already running OpenWrt or ImmortalWrt: flash the sysupgrade image from LuCI (System → Backup / Flash Firmware) or with the sysupgrade command.
- Verify your download against the published checksum before flashing:
$ sha256sum openwrt-25.12.5-layerscape-armv7-fsl_ls1021a-iot-sdboot-squashfs-sdcard.img.gz 9e19def9738167d3dfe84ccd194104bb0086bb26483bc2e878dd2a9c734ded8a openwrt-25.12.5-layerscape-armv7-fsl_ls1021a-iot-sdboot-squashfs-sdcard.img.gz
Build custom firmware
Need more than the default image for the NXP LS1021A-IoT SD Card Boot? 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
Related devices
More NXP devices
Upstream
Upstream & source
- downloads.openwrt.org — layerscape/armv7 25.12.5
- downloads.immortalwrt.org — layerscape/armv7 25.12.1
- OpenWrt Table of Hardware
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.