[ath9k-devel] New radio fails to init in ath9k_hw_wait Where to add a new reg value type?

[Felix Fietkau <nbd@openwrt.org>]

On 2011-07-18 6:02 PM, Kelly Hogan wrote:
> Thanks for the response!
>
> This is a 9285 and similar to the UBNT Bullet M radio I believe.
>
> root at OpenWrt:/# dmesg | grep phy
> Determined physical RAM map:
> ieee80211 phy0: Selected rate control algorithm 'minstrel_ht'
> Registered led device: ath9k-phy0
> ieee80211 phy0: Atheros AR9285 Rev:2 mem=0xb0000000, irq=72
> root at OpenWrt:/# dmesg | grep ath
> \ath: EEPROM regdomain: 0x0
> ath: EEPROM indicates default country code should be used
> ath: doing EEPROM country->regdmn map search
> ath: country maps to regdmn code: 0x3a
> ath: Country alpha2 being used: US
> ath: Regpair used: 0x3a
> Registered led device: ath9k-phy0
>
> root at OpenWrt:/sys/kernel/debug/ieee80211/phy0/ath9k# cat rx_chainmask
> 0x00000003
> root at OpenWrt:/sys/kernel/debug/ieee80211/phy0/ath9k# cat tx_chainmask
> 0x00000001
I'm pretty sure that explains your problems - the rx chainmask is wrong.
The AR9285 chipset is single-stream and thus cannot have a chainmask of 
3 (which would imply dual-stream MIMO Rx).

Try echo 1 > rx_chainmask, and then restart wifi.
If that fixes the issue for you, I'll make a patch to make ath9k 
validate the chainmask settings from the EEPROM and fix them if they're 
wrong.

- Felix