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authorLorenzo Bianconi <lorenzo@kernel.org>2019-11-14 22:21:11 +0200
committerFelix Fietkau <nbd@nbd.name>2019-11-20 13:23:51 +0100
commitacf5457fd99db6c9a42ef280494dfee949ee1e09 (patch)
tree7b2bf9290d7a54650497c8e9062a27ec5f94fb2f /drivers/net/wireless
parente49c76d455a93b6cc978ae9e9fab2a1e551c147e (diff)
mt76: mt7615: read {tx,rx} mask from eeprom
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>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c18
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h3
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7615/init.c2
-rw-r--r--drivers/net/wireless/mediatek/mt76/mt7615/regs.h2
4 files changed, 23 insertions, 2 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
index 515bb58e19fd..eccad4987ac8 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
@@ -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,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
index f4a4280768d2..c3bc69ac210e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
@@ -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)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/init.c b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
index 128a6ee1fa6d..553bd4d988f7 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/init.c
@@ -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,
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
index 99bd5939d33f..61a4aa9ac6e6 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/regs.h
@@ -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)