Enable 5 Ghz in Linksys e8350

Can someone guide me how to enable 5Ghz wifi in Linksys e8350 model router.

|Model|Linksys E8350 V1 WiFi Router|
|Architecture|ARMv7 Processor rev 0 (v7l)|
|Target Platform|ipq806x/generic|
|Firmware Version|OpenWrt SNAPSHOT / LuCI Master 24.298.52515~e34c268|
|Kernel Version|6.6.57|

Unsupported, there is no driver for quantenna topaz.

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I am looking for this

5GHz wifi configuration is done manually via editing the /etc/rc.local