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authorPaul Fertser <fercerpav@gmail.com>2020-10-27 14:02:53 +0300
committerAdrian Schmutzler <freifunk@adrianschmutzler.de>2020-11-16 14:05:24 +0100
commit4d36569b9cab6422d31bda5501718177f2f9c990 (patch)
treea09cc47a2b4df367c4a6110fdc6fe291dcf94727 /target/linux
parent03d178727aa0f60cd620f58d7df2578969e3c212 (diff)
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ath79: fix ath10k caldata extraction on some D-Link DIR-842 C3 devices
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 <fercerpav@gmail.com>
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/ath79/generic/base-files/etc/hotplug.d/firmware/11-ath10k-caldata9
1 files changed, 7 insertions, 2 deletions
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 e968658cac..a72ed0206b 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
@@ -169,13 +169,18 @@ case "$FIRMWARE" in
;;
dlink,dir-842-c1|\
dlink,dir-842-c2|\
- dlink,dir-842-c3|\
- nec,wg1200cr)
+ dlink,dir-842-c3)
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
;;
+ nec,wg1200cr)
+ caldata_extract "art" 0x5000 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
netgear,ex6400|\
netgear,ex7300)
caldata_extract "caldata" 0x5000 0x2f20