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Commit c988a77f authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Felix Fietkau
Browse files

mt76: mt7615: select wifi band according to eeprom 



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

Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent f9461a68

drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c

+21 −3
Original line number Diff line number Diff line
@@ -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);

drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h

+9 −0
Original line number Diff line number Diff line
@@ -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