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mt76: mt7615: read {tx,rx} mask from eeprom

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Parse configured {tx,rx} mask from eeprom data instead of just setting it
to four tx-rx streams

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2019-11-14 22:21:11 +02:00 committed by Felix Fietkau
parent e49c76d455
commit acf5457fd9
4 changed files with 23 additions and 2 deletions
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18
drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
View File

@ -93,6 +93,7 @@ static int mt7615_check_eeprom(struct mt76_dev *dev)
static void mt7615_eeprom_parse_hw_cap(struct mt7615_dev *dev)
{
u8 val, *eeprom = dev->mt76.eeprom.data;
u8 tx_mask, rx_mask, max_nss;
val = FIELD_GET(MT_EE_NIC_WIFI_CONF_BAND_SEL,
eeprom[MT_EE_WIFI_CONF]);
@ -108,6 +109,23 @@ static void mt7615_eeprom_parse_hw_cap(struct mt7615_dev *dev)
dev->mt76.cap.has_5ghz = true;
break;
}
/* read tx-rx mask from eeprom */
val = mt76_rr(dev, MT_TOP_STRAP_STA);
max_nss = val & MT_TOP_3NSS ? 3 : 4;
rx_mask = FIELD_GET(MT_EE_NIC_CONF_RX_MASK,
eeprom[MT_EE_NIC_CONF_0]);
if (!rx_mask || rx_mask > max_nss)
rx_mask = max_nss;
tx_mask = FIELD_GET(MT_EE_NIC_CONF_TX_MASK,
eeprom[MT_EE_NIC_CONF_0]);
if (!tx_mask || tx_mask > max_nss)
tx_mask = max_nss;
dev->mt76.chainmask = tx_mask << 8 | rx_mask;
dev->mt76.antenna_mask = BIT(tx_mask) - 1;
}
int mt7615_eeprom_get_power_index(struct mt7615_dev *dev,

3
drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
View File

@ -24,6 +24,9 @@ enum mt7615_eeprom_field {
__MT_EE_MAX = 0x3bf
};
#define MT_EE_NIC_CONF_TX_MASK GENMASK(7, 4)
#define MT_EE_NIC_CONF_RX_MASK GENMASK(3, 0)
#define MT_EE_NIC_CONF_TSSI_2G BIT(5)
#define MT_EE_NIC_CONF_TSSI_5G BIT(6)

2
drivers/net/wireless/mediatek/mt76/mt7615/init.c
View File

@ -303,8 +303,6 @@ int mt7615_register_device(struct mt7615_dev *dev)
IEEE80211_VHT_CAP_MAX_MPDU_LENGTH_11454 |
IEEE80211_VHT_CAP_MAX_A_MPDU_LENGTH_EXPONENT_MASK |
IEEE80211_VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ;
dev->mt76.chainmask = 0x404;
dev->mt76.antenna_mask = 0xf;
dev->dfs_state = -1;
ret = mt76_register_device(&dev->mt76, true, mt7615_rates,

2
drivers/net/wireless/mediatek/mt76/mt7615/regs.h
View File

@ -6,6 +6,8 @@
#define MT_HW_REV 0x1000
#define MT_HW_CHIPID 0x1008
#define MT_TOP_STRAP_STA 0x1010
#define MT_TOP_3NSS BIT(24)
#define MT_TOP_MISC2 0x1134
#define MT_TOP_MISC2_FW_STATE GENMASK(2, 0)