diff options
| author | Lorenzo Bianconi <lorenzo@kernel.org> | 2019-11-27 16:46:33 +0200 |
|---|---|---|
| committer | Felix Fietkau <nbd@nbd.name> | 2020-02-14 10:06:00 +0100 |
| commit | b3c6d6388b512e947dfa6c244af5d8f54b37cf65 (patch) | |
| tree | ce81ef5a1630b62d79dfb362c1a638ecce17c90b /drivers/net/wireless/mediatek/mt76/eeprom.c | |
| parent | 00c29ab2f67105444b50cea59b68cf716e27cedc (diff) | |
mt76: eeprom: add support for big endian eeprom partition
mt76x0e users reported some devices (e.g TP-Link Archer VR200v) have
been flashed with big endian radio partition. Add the possibility to
specify eeprom endianness using big-endian dts property and in case
covert eeprom data in little endian
Tested-by: Kevin Schmidt <kevin.patrick.schmidt@googlemail.com>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Diffstat (limited to 'drivers/net/wireless/mediatek/mt76/eeprom.c')
| -rw-r--r-- | drivers/net/wireless/mediatek/mt76/eeprom.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/net/wireless/mediatek/mt76/eeprom.c b/drivers/net/wireless/mediatek/mt76/eeprom.c index 358fb0a1e523..8f2693748faf 100644 --- a/drivers/net/wireless/mediatek/mt76/eeprom.c +++ b/drivers/net/wireless/mediatek/mt76/eeprom.c @@ -64,6 +64,16 @@ mt76_get_of_eeprom(struct mt76_dev *dev, int len) goto out_put_node; } + if (of_property_read_bool(dev->dev->of_node, "big-endian")) { + u8 *data = (u8 *)dev->eeprom.data; + int i; + + /* convert eeprom data in Little Endian */ + for (i = 0; i < round_down(len, 2); i += 2) + put_unaligned_le16(get_unaligned_be16(&data[i]), + &data[i]); + } + out_put_node: of_node_put(np); return ret; |