According to forum threads [0][1] and a report on IRC by Doc-Saintly some of those boards have calibration data in a different place. Only one alternative location is known.
Without proper board calibration data (board.bin having all 0xff bytes) ath10k firmware still tries to load but crashes on startup with a confusing error message. If you're applying this patch manually on your device do not forget to remove /lib/firmware/ath10k/pre-cal-pci-0000:00:00.0.bin and reboot to force caldata re-extraction. [0] https://forum.openwrt.org/t/support-for-d-link-dir842-rev-c3/41654 [1] https://forum.openwrt.org/t/d-link-dir-842-cant-access-firmware-upload-form/65454 Signed-off-by: Paul Fertser <fercer...@gmail.com> --- .../generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata | 1 + 1 file changed, 1 insertion(+) diff --git a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata index 25e864ba72..79003929df 100644 --- a/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata +++ b/target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata @@ -170,6 +170,7 @@ case "$FIRMWARE" in dlink,dir-842-c3|\ nec,wg1200cr) caldata_extract "art" 0x5000 0x2f20 + caldata_valid "202f" || caldata_extract "reserved" 0x15000 0x2f20 ath10k_patch_mac $(mtd_get_mac_ascii devdata wlan5mac) ln -sf /lib/firmware/ath10k/pre-cal-pci-0000\:00\:00.0.bin \ /lib/firmware/ath10k/QCA9888/hw2.0/board.bin -- 2.20.1 _______________________________________________ openwrt-devel mailing list openwrt-devel@lists.openwrt.org https://lists.openwrt.org/mailman/listinfo/openwrt-devel
