rmmod ath11k_ahb; rmmod ath11k; modprobe ath11k_ahb
Unfortunately that doesn't work for me (even after I copy back the board-2.bin) when run from initramfs:
root@OpenWrt:/lib/firmware/ath11k/IPQ8074/hw2.0# modprobe ath11k_ahb
[ 137.341955] ath11k c000000.wifi: ipq8074 hw2.0
[ 137.341991] ath11k c000000.wifi: FW memory mode: 0
[ 137.345520] remoteproc remoteproc0: powering up cd00000.q6v5_wcss
[ 137.350162] remoteproc remoteproc0: Booting fw image IPQ8074/q6_fw.mdt, size 668
[ 142.648307] qcom-q6v5-wcss-pil cd00000.q6v5_wcss: start timed out
[ 142.648352] remoteproc remoteproc0: can't start rproc cd00000.q6v5_wcss: -110
[ 142.653407] ath11k c000000.wifi: failed to boot the remote processor Q6
[ 142.660520] ath11k c000000.wifi: failed to power up :-110
[ 142.698280] ath11k c000000.wifi: failed to create soc core: -110
[ 142.698307] ath11k c000000.wifi: failed to init core: -110
[ 142.703546] ath11k: probe of c000000.wifi failed with error -110