VAR-SOM-MX93 Changelog¶

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

VAR-SOM-MX93 V2.0 (August 2023)¶

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 WiFi module¶

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

Software Modifications¶

Variscite is updating all relevant software repositories and recommends impacted users to upgrade to Yocto Langdale imx-6.1.1-1.0.1.xml@f6649d or newer.

While adding support to meta-variscite-bsp, the layer was split into meta-variscite-bsp-imx and meta-variscite-bsp-common. It is recommended to rebase on top of Variscite's latest commits.

The following are the relevant patches:

Release	Relevant Patches
Yocto Langdale	U-Boot: phy: mxl-8611x: add driver for MaxLinear mxl-8611x PHYs dt-bindings: add device tree bindings and includes for mxl-8611x PHY imx93-var-som: add support for MaxLinear mxl8611x Ethernet PHY variscite: imx9_eeprom.h: add support for major and minor som revision mx93_var_som: conditionally boot linux dts according to som_rev Linux: net: phy: mxl-8611: add support for MaxLinear MxL86110x/MxL86111x arm64: configs: imx8_var_defconfig: enable CONFIG_MAXLINEAR_8611X_PHY net:phy: mxl-8611x: use device tree properties to configure LEDs dt-bindings: net: add bindings for MaxLinear MXL8611x PHY driver imx93-var-som: add support for MaxLinear MXL86110 PHY imx93-var-som: add support for VAR-SOM-MX93 2.x and newer imx93-var-som: update SD3 pad settings imx93-var-som: move brcmf to imx93-var-som-1.x meta-variscite-bsp-imx: imx93-var-som: add KERNEL_DEVICETREE for som rev 1.x brcm43xx-utils: imx93-var-som: exit if module is not bcm43xx bcm43xx-utils: convert to bbappend bcm43xx-utils: rework to use var-wireless-utils framework bcm43xx-utils: imx8qxp-var-som: bcm43xx-wifi: fix indentation bcm43xx-utils: move common functions to variscite-wireless bcm43xx-utils: imx93-var-som: bcm43xx-bt: verify module using sdio id iw612-utils: imx93-var-som: add bluetooth and wifi init scripts imx93-var-som: add iw612 to MACHINE_FEATURES variscite: add iw612-utils to all images with iw612 MACHINE_FEATURES kernel-module-nxp-wlan: load moal kernel module on boot meta-variscite-bsp-common: iw612-utils: introduce recipe for configuring iw612 wireless module
Debian Bookworm	Debian should be updated to mx93-debian-bookworm-6.1.1_1.0.1-v1.1 or newer. See the changes between mx93-debian-bookworm-6.1.1_1.0.1-v1.0 and mx93-debian-bookworm-6.1.1_1.0.1-v1.1

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