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mt76: mt7603: check for single-stream EEPROM configuration

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Some devices using MT7628 or MT7603 have only one antenna chain connected.
Detect these using the EEPROM rx/tx path settings

Reported-by: Qin Wei <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2020-08-25 07:11:14 +02:00
parent f6ca436ebe
commit 97e6513144
2 changed files with 13 additions and 2 deletions
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mt7603/eeprom.h
+3
View File
@@ -85,4 +85,7 @@ enum mt7603_eeprom_source {
MT_EE_SRC_FLASH,
};
#define MT_EE_NIC_CONF_0_RX_PATH GENMASK(3, 0)
#define MT_EE_NIC_CONF_0_TX_PATH GENMASK(7, 4)
#endif
mt7603/init.c
+10 -2
View File
@@ -510,11 +510,17 @@ mt7603_init_txpower(struct mt7603_dev *dev,
}
}
static inline bool is_mt7688(struct mt7603_dev *dev)
{
return mt76_rr(dev, MT_EFUSE_BASE + 0x64) & BIT(4);
}
int mt7603_register_device(struct mt7603_dev *dev)
{
struct mt76_bus_ops *bus_ops;
struct ieee80211_hw *hw = mt76_hw(dev);
struct wiphy *wiphy = hw->wiphy;
u8 *eeprom = (u8 *)dev->mt76.eeprom.data;
int ret;
dev->bus_ops = dev->mt76.bus;
@@ -536,9 +542,11 @@ int mt7603_register_device(struct mt7603_dev *dev)
tasklet_init(&dev->mt76.pre_tbtt_tasklet, mt7603_pre_tbtt_tasklet,
(unsigned long)dev);
/* Check for 7688, which only has 1SS */
/* Check for 1SS devices */
dev->mphy.antenna_mask = 3;
if (mt76_rr(dev, MT_EFUSE_BASE + 0x64) & BIT(4))
if (FIELD_GET(MT_EE_NIC_CONF_0_RX_PATH, eeprom[MT_EE_NIC_CONF_0]) == 1 ||
FIELD_GET(MT_EE_NIC_CONF_0_TX_PATH, eeprom[MT_EE_NIC_CONF_0]) == 1 ||
is_mt7688(dev))
dev->mphy.antenna_mask = 1;
dev->slottime = 9;