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45 lines
1.3 KiB
Diff
45 lines
1.3 KiB
Diff
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From 9c9a3c27b96e057f3c3f47151d7a170d84e3bb5f Mon Sep 17 00:00:00 2001
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From: Christian Marangi <ansuelsmth@gmail.com>
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Date: Sun, 15 Oct 2023 15:31:47 +0200
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Subject: [PATCH 4/5] wifi: rt2x00: Support EEPROM swap binding
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Add binding "ralink,eeprom-swap" to swap bytes of EEPROM before using
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it.
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Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
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---
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drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c | 15 +++++++++++++++
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1 file changed, 15 insertions(+)
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--- a/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c
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+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00eeprom.c
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@@ -20,6 +20,19 @@
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#include "rt2x00soc.h"
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#if IS_ENABLED(CONFIG_MTD)
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+static void rt2800lib_eeprom_swap(struct rt2x00_dev *rt2x00dev)
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+{
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+ struct device_node *np = rt2x00dev->dev->of_node;
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+ size_t len = rt2x00dev->ops->eeprom_size;
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+ int i;
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+
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+ if (!of_find_property(np, "ralink,eeprom-swap", NULL))
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+ return;
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+
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+ for (i = 0; i < len / sizeof(u16); i++)
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+ rt2x00dev->eeprom[i] = swab16(rt2x00dev->eeprom[i]);
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+}
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+
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static int rt2800lib_read_eeprom_mtd(struct rt2x00_dev *rt2x00dev)
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{
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int ret = -EINVAL;
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@@ -66,6 +79,8 @@ static int rt2800lib_read_eeprom_mtd(str
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return ret;
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}
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+ rt2800lib_eeprom_swap(rt2x00dev);
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+
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dev_info(rt2x00dev->dev, "loaded eeprom from mtd device \"%s\"\n", part);
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#endif
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