I just bulilt a new u-boot with bl31 v1.28 and ddr v1.08, now my system doesn’t hang with ddr freq 2112 MHz. Thank you for informing this! I will create a pull request to armbian to update these binaries. @icecream95 you can try building u-boot with the new binaries: https://github.com/radxa/rkbin/tree/master/bin/rk35.
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