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mt76: mt7615: select wifi band according to eeprom 

Select supported band according to the value read from
eeprom mtd/otp partition

Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2019-05-17 23:32:56 +02:00 committed by Felix Fietkau
parent f9461a6879
commit c988a77f1d
2 changed files with 30 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

24
drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
View File

@ -90,6 +90,26 @@ 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;
val = FIELD_GET(MT_EE_NIC_WIFI_CONF_BAND_SEL,
eeprom[MT_EE_WIFI_CONF]);
switch (val) {
case MT_EE_5GHZ:
dev->mt76.cap.has_5ghz = true;
break;
case MT_EE_2GHZ:
dev->mt76.cap.has_2ghz = true;
break;
default:
dev->mt76.cap.has_2ghz = true;
dev->mt76.cap.has_5ghz = true;
break;
}
}
int mt7615_eeprom_init(struct mt7615_dev *dev)
{
int ret;
@ -103,9 +123,7 @@ int mt7615_eeprom_init(struct mt7615_dev *dev)
memcpy(dev->mt76.eeprom.data, dev->mt76.otp.data,
MT7615_EEPROM_SIZE);
dev->mt76.cap.has_2ghz = true;
dev->mt76.cap.has_5ghz = true;
mt7615_eeprom_parse_hw_cap(dev);
memcpy(dev->mt76.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
ETH_ALEN);

9
drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
View File

@ -11,8 +11,17 @@ enum mt7615_eeprom_field {
MT_EE_VERSION = 0x002,
MT_EE_MAC_ADDR = 0x004,
MT_EE_NIC_CONF_0 = 0x034,
MT_EE_WIFI_CONF = 0x03e,
__MT_EE_MAX = 0x3bf
};
#define MT_EE_NIC_WIFI_CONF_BAND_SEL GENMASK(5, 4)
enum mt7615_eeprom_band {
MT_EE_DUAL_BAND,
MT_EE_5GHZ,
MT_EE_2GHZ,
MT_EE_DBDC,
};
#endif