Denis Kalashnikov <denis281089@xxxxxxxxx> writes:
> Some of the Mikrotik R11e-2HPnD cards have EEPROM where is
> flashed that a card has 3 chains, but actually all this cards
> have only 2. This leads ath9k to write periodically into the logs:
> 'ath: phy0: Unable to reset channel, reset status -5' and
> stations don't see that AP.
>
> Mikrotik R11e-2HPnD is based on AR9582 chip.
>
> Signed-off-by: Denis Kalashnikov <denis281089@xxxxxxxxx>
> ---
> drivers/net/wireless/ath/ath9k/ar9003_eeprom.c | 9 +++++++++
> 1 file changed, 9 insertions(+)
>
> diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
> b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
> index b4885a700296..554a81400648 100644
> --- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
> +++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
> @@ -3373,6 +3373,15 @@ static int
> ar9300_eeprom_restore_internal(struct ath_hw *ah,
> cptr -= (COMP_HDR_LEN + osize + COMP_CKSUM_LEN);
> }
>
> + /**
> + * Fix firmware bug of some Mikrotik R11e-2HPnD cards (based on AR9582)
> + * that claim that they have 3 chains, but actually have only 2.
> + */
> + if (AR_SREV_9580(ah)) {
> + eep = (struct ar9300_eeprom *)mptr;
> + eep->baseEepHeader.txrxMask &= 0x33;
> + }
What about 9580 devices which really have 3 chains, doesn't this broke
those? Or is such setup impossible?
--
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
