Commit b3c6d638 authored by Lorenzo Bianconi's avatar Lorenzo Bianconi Committed by Felix Fietkau
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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: default avatarKevin Schmidt <kevin.patrick.schmidt@googlemail.com>
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: default avatarFelix Fietkau <nbd@nbd.name>
parent 00c29ab2

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

+10 −0
Original line number Diff line number Diff line
@@ -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;