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Hardware Changelog

DART-MX8M-MINI Changelog

1. Murata Type 2DL/2EL Wireless Module Firmware Requirement (February 2026)

Component Change Notice

NXP changed the IW611 IC fabrication source from TSMC to UMC. The Murata module MPN did not change.

SOMs with Murata Type 2DL or Type 2EL wireless modules shipped from the beginning of February 2026 require NXP firmware released after April 2025. Firmware versions released before April 2025 are not compatible with the UMC-manufactured IW611 IC.

Affected Wireless Modules Affected Shipments Minimum Supported Firmware
Murata Type 2DL / Type 2EL Beginning of February 2026 18.99.3.p23.20

The firmware update also requires that the Wi-Fi driver, btnxpuart driver and OpenThread userspace utility are updated. This update is backwards compatible with modules shipped prior to February 2026.

Software Requirement

Update your existing BSP to the required update listed below for your release / branch. This includes updates to the following packages backported from the NXP 6.12.20 BSP:

  • Wi-Fi firmware version 18.99.3.p23.20
  • Wi-Fi driver version MM6X18537.p9
  • btnxpuart driver
  • OpenThread userspace utility
Release / Branch Required Update
Yocto Scarthgap 6.6.52-2.2.0 variscite-bsp-platform@496d8ee9a or newer
Debian Bookworm flexbuild@2b4cb98c or newer
Android 15.0.0_1.2.0 variscite-bsp-platform@3d201a7e or newer

2. DART-MX8M-MINI V2.0

2.1. Hardware Modifications

Redesigned SOM to Support MaxLinear Ethernet PHY

Previous Manufacturer Previous MPN Updated Manufacturer Updated MPN
Analog Devices Inc. ADIN1300BCPZ MaxLinear MxL86110

Redesigned SOM to Support Murata Wi-Fi module

Previous Manufacturer Previous MPN Updated Manufacturer Updated MPN
Infineon CYW43353 / CYW4343W Murata LBES5PL2EL-SMP / LBEE5PL2DL-SMP

2.2. Software Modifications

Variscite is updating all relevant software repositories and recommends impacted users to upgrade to the latest software version or to update their U-Boot, kernel, and meta-layers to the latest commit ID of the branch they are already based on.

The following are the relevant patches:

These patches are backward-compatible with the previous SOM revisions.

If you need patches for releases not listed below, please contact [email protected].

Yocto Scarthgap (kernel 6.6.52)

Branch: lf_v2024.04_6.6.52-2.2.0_var01

  1. arm: dts: imx8mm-var-dart: Align MXL86110 reset delay with spec requirements

  2. arm: dts: imx8mm-var-som: Align MXL86110 reset delay with spec requirements

Branch: lf-6.6.y_6.6.52-2.2.0_var01

  1. dts: imx8mm-var-dart: Align MXL86110 reset delay with spec requirements

  2. dts: imx8mm-var-som: Align MXL86110 reset delay with spec requirements

Branch: scarthgap_6.6.52-2.2.0_var01

  1. linux-variscite: Update to latest

  2. u-boot-variscite: Update to latest

Yocto Mickledore (kernel 6.1.36)

Branch: lf_v2023.04_var02

  1. arm: dts: imx8mm-var-dart: Align MXL86110 reset delay with spec requirements

  2. arm: dts: imx8mm-var-som: Align MXL86110 reset delay with spec requirements

  3. imx8mm_var_dart: add support for booting wbe and 1.x device trees

  4. imx8mm_var_dart: add support for DART-MX8M-MINI v2.0

  5. net: phy: mxl-8611x: configure rgmii rx clock delay

  6. variscite: imx8_eeprom.h: add support for major and minor som revision

  7. variscite: imx8_eeprom: add VAR_EEPROM_F_WBE som feature

  8. dt-bindings: add device tree bindings and includes for mxl-8611x PHY

  9. phy: mxl-8611x: add driver for MaxLinear mxl-8611x PHYs

Branch: lf-6.1.y_var03

  1. arm64: dts: imx8mm-var-dart: Align MXL86110 reset delay with spec requirements

  2. arm64: dts: imx8mm-var-som: Align MXL86110 reset delay with spec requirements

  3. imx8mm-var-dart: add support for DART-MX8M-MINI 2.0

  4. net: phy: mxl-8611x: configure rgmii rx clock delay

  5. dt-bindings: net: add bindings for MaxLinear MXL8611x PHY driver

  6. net: phy: mxl-8611x: use device tree properties to configure LEDs

  7. arm64: configs: imx8_var_defconfig: enable CONFIG_MAXLINEAR_8611X_PHY

  8. net: phy: mxl-8611: add support for MaxLinear MxL86110x/MxL86111x

Branch: mickledore-var02

  1. var-mii: update to latest

  2. iw612-utils: add support for DART-MX8M-MINI

  3. iw612-utils: install var_wifi_mod_para

  4. ot-daemon: add patch to make reset gpio optional

  5. iw612-utils: configure networkmanager to not manage wfd0 and uap0

Branch: mickledore-var02

  1. linux-variscite: Update to latest

  2. u-boot-variscite: Update to latest

  3. linux-variscite: add support for DART-MX8M-MINI v2.0

  4. Add support for IW612 on DART-MX8M-MINI WiFi/BT scripts

  5. u-boot-variscite: update to latest

  6. kernel-module-nxp-wlan: drop driver module configurations

  7. kernel-module-nxp-wlan: moal: use independent reset for sdio firmware

  8. firmware-nxp-wifi: update IW612 firmware to 18.99.2.p19.17

  9. nxp-wlan-sdk: drop overrides in favor of NXP's latest

Yocto Zeus (kernel 5.4.3)

Branch: lf-5.4.y_v2019.04_var01

  1. imx8mm_var_dart: add support for booting 1.x device tree

  2. imx8mm_var_dart: add support for MaxLinear MXL8611X Ethernet PHY

  3. variscite: imx8_eeprom.h: add support for major and minor som revision

  4. variscite: imx8_eeprom: Use BIT macros for bits

  5. variscite: eth: Add support for MXL611x ethernet phy

  6. net: phy: mxl-8611x: fix ethernet-phy node handle

  7. net:phy: mxl-8611x: configure rgmii rx clock delay

  8. phy: mxl-8611x: add driver for MaxLinear mxl-8611x PHYs

  9. dt-bindings: add device tree bindings and includes for mxl-8611x PHY

Branch: lf-5.4.y_var01

  1. imx8mm_var_dart: add legacy support for 1.x modules

  2. imx8mm-var-dart: add support for DART-MX8M-MINI 2.0

  3. net: phy: mxl-8611: backport: replace phy_lock_mdio_bus with mutex_lock

  4. net: phy: mxl-8611: backport: drop support for MXL86111

  5. arm64: configs: imx8_var_defconfig: enable CONFIG_MAXLINEAR_8611X_PHY

  6. net: phy: mxl-8611x: configure rgmii rx clock delay

  7. dt-bindings: net: add bindings for MaxLinear MXL8611x PHY driver

  8. net: phy: mxl-8611x: use device tree properties to configure LEDs

  9. net: phy: mxl-8611: add support for MaxLinear MxL86110x/MxL86111x

Branch: zeus-imx-5.4.3-var01

  1. linux-variscite: update to latest

  2. u-boot-variscite: update to latest

  3. imx8mm-var-dart: add nxpiw612-sdio to MACHINE_FEATURES

  4. bluez5: add iw61x bluetooth initialization

  5. bcm43xx-utils: add support for iw61x wlan

  6. variscite: conditionally add iw61x support to images

  7. bluez5: variscite-bt-common: refactor identation

  8. linux-firmware: add 18.99.2.p19.17 nxpiw612-sdio firmware package

  9. kernel-module-nxp-wlan: add iw61x driver based on lf-6.1.36_2.1.0

Android 14.0.0_1.0.0 (kernel 6.1.55)

Branch: lf_v2023.04_android-14.0.0_1.0.0_var01

  1. imx8mm-var-som: mxl8611x: Align reset-deassert value with datasheet

  2. Supported by initial release

Branch: android-14.0.0_1.0.0-var01

  1. imx8mm-var-dart: mxl8611x: Align reset-deassert value with datasheet

  2. Supported by initial release

Branch: android-14.0.0_1.0.0-var01

  1. Supported by initial release

3. DART-MX8M-MINI V1.3

3.1. Hardware Modifications

Updated Board & SOM Design to support Analog Devices Inc Ethernet PHY.

Old Manufacturer Old MPN New Manufacturer New MPN
Qualcomm AR8033-AL1A-R / AR8033-AL1B-R Analog Devices Inc. ADIN1300BCPZ

3.2. Software Modifications

Variscite is updating all relevant software repositories and recommends impacted users to upgrade to the latest software version or to update their U-Boot and kernel to the latest commit ID of the branch they are already based on.

The following are the relevant patches:

These patches are backward-compatible with the previous SOM revisions.

If you need patches for releases not listed below, please contact [email protected].

Yocto Hardknott

Branch: imx_v2020.04_5.4.70_2.3.0_var01

  1. imx8mm-var-dart: Add support for Analog Devices ADIN1300 PHY

  2. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: 5.4-2.3.x-imx_var01

  1. imx8_var_defconfig: enable driver for ADIN PHY

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Yocto Dunfell / B2Qt Dunfell / Debian Bullseye (kernel 5.4.142)

Branch: imx_v2020.04_5.4.24_2.1.0_var02

  1. imx8mm-var-dart: Add support for Analog Devices ADIN1300 PHY

  2. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: 5.4-2.1.x-imx_var01

  1. imx8_var_defconfig: enable driver for ADIN PHY

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Yocto Zeus / Debian Bullseye (kernel 5.4.3)

Branch: lf-5.4.y_v2019.04_var01

  1. imx8mm-var-dart: Add support for Analog Devices ADIN1300 PHY

  2. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: lf-5.4.y_var01

  1. imx8_var_defconfig: enable driver for ADIN PHY

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Yocto Warrior / Debian Buster (kernel 4.19.35)

Branch: imx_v2019.04_4.19.35_1.1.0-var01

  1. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: imx_4.19.35_1.1.0_var01

  1. net: fec: register ADIN1300 PHY fixup to configure rgmii

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Yocto Sumo / B2Qt Sumo (kernel 4.14.98)

Branch: imx_v2018.03_4.14.98_2.0.0_ga_var01

  1. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: imx_4.14.98_2.0.0_ga_var01

  1. net: fec: register ADIN1300 PHY fixup to configure rgmii

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Android 11.0.0_2.6.0

Branch: lf_v2021.04_var03

  1. imx8mm-var-dart: Enable CONFIG_PHY_ADIN

  2. phy: adin: add driver for Analog Devices ADIN1300 PHY

Branch: android-11.0.0_2.6.0-var01

  1. imx8mm_var_dart: Add support for imx-android-11.0.0_2.6.0

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Android 11.0.0_2.4.0

Branch: lf_v2021.04_var02

  1. imx8mm-var-dart: Add support for Analog Devices ADIN1300 PHY

  2. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: android-11.0.0_2.4.0-var01

  1. enable defconfig for ADIN PHY

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Android 11.0.0_1.0.0

Branch: imx_v2020.04_5.4.47_2.2.0_var01

  1. imx8mm-var-dart: Add support for Analog Devices ADIN1300 PHY

  2. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: android-11.0.0_1.0.0-var01

  1. enable defconfig for ADIN PHY

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Android 10.0.0_2.6.0

Branch: imx_v2020.04_5.4.70_2.3.0_var01

  1. imx8mm-var-dart: Add support for Analog Devices ADIN1300 PHY

  2. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: android-10.0.0_2.6.0-var01

  1. enable defconfig for ADIN PHY

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Android 10.0.0_1.0.0

Branch: imx_v2019.04_4.19.35_1.1.0-var02

  1. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: q10.0.0_1.0.0-ga_var01

  1. net: fec: register ADIN1300 PHY fixup to configure rgmii

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay

Android 9.0.0_2.0.0

Branch: imx_v2018.03_4.14.98_2.0.0_ga_var01

  1. variscite: eth: ADIN1300: Disable RGMII RX clock delay

Branch: p9.0.0_2.0.0-ga_var01

  1. net: fec: register ADIN1300 PHY fixup to configure rgmii

  2. imx8mm-var-dart: fec: add 20ms phy-reset-post-delay