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bea4f50207
Improve EEPROME load patches. Reorganize and rework them. The current patch are bugged and with the case of MTD loading, leaks and never free the EEPROM read values. Also add support for loading EEPROM using NVMEM cells. As a cleanup, change the binding to swap EEPROM read from mtd to ralink,eeprom-swap and generilize it. Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
45 lines
1.3 KiB
Diff
45 lines
1.3 KiB
Diff
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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