From: Lorenzo Bianconi <lorenzo@kernel.org>
To: nbd@nbd.name
Cc: lorenzo.bianconi@redhat.com, linux-wireless@vger.kernel.org,
ryder.lee@mediatek.com, royluo@google.com
Subject: [PATCH] mt76: mt7615: select wifi band according to eeprom
Date: Fri, 17 May 2019 23:32:56 +0200 [thread overview]
Message-ID: <38aa977df45a92f60d78d9cb7e575289ccbaeef6.1558127930.git.lorenzo@kernel.org> (raw)
In-Reply-To: <cover.1558127930.git.lorenzo@kernel.org>
Select supported band according to the value read from
eeprom mtd/otp partition
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
---
.../wireless/mediatek/mt76/mt7615/eeprom.c | 24 ++++++++++++++++---
.../wireless/mediatek/mt76/mt7615/eeprom.h | 9 +++++++
2 files changed, 30 insertions(+), 3 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
index 1712f66520a8..714590878d65 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.c
@@ -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);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
index a4cf16688171..b422e395d6ee 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7615/eeprom.h
@@ -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
--
2.20.1
next parent reply other threads:[~2019-05-17 21:33 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <cover.1558127930.git.lorenzo@kernel.org>
2019-05-17 21:32 ` Lorenzo Bianconi [this message]
2019-05-17 21:35 ` [PATCH] mt76: mt7615: select wifi band according to eeprom Lorenzo Bianconi
2019-06-07 16:56 ` Felix Fietkau
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