39 lines
1.1 KiB
Diff
39 lines
1.1 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
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Date: Thu, 21 Jan 2016 16:28:44 +0100
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Subject: [PATCH] ath9k_hw: ignore eeprom magic mismatch on flash based devices
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Many AR913x based devices (maybe others too) do not have a valid EEPROM
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magic in their calibration data partition.
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Fixes: 6fa658fd5ab2 ("ath9k: Simplify and fix eeprom endianness swapping")
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Signed-off-by: Felix Fietkau <nbd@nbd.name>
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---
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--- a/drivers/net/wireless/ath/ath9k/eeprom.c
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+++ b/drivers/net/wireless/ath/ath9k/eeprom.c
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@@ -150,18 +150,18 @@ int ath9k_hw_nvram_swap_data(struct ath_
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return -EIO;
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}
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- if (magic == AR5416_EEPROM_MAGIC) {
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- *swap_needed = false;
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- } else if (swab16(magic) == AR5416_EEPROM_MAGIC) {
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+ *swap_needed = false;
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+ if (swab16(magic) == AR5416_EEPROM_MAGIC) {
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if (ah->ah_flags & AH_NO_EEP_SWAP) {
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ath_info(common,
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"Ignoring endianness difference in EEPROM magic bytes.\n");
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-
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- *swap_needed = false;
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} else {
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*swap_needed = true;
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}
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- } else {
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+ } else if (magic != AR5416_EEPROM_MAGIC) {
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+ if (ath9k_hw_use_flash(ah))
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+ return 0;
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+
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ath_err(common,
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"Invalid EEPROM Magic (0x%04x).\n", magic);
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return -EINVAL;
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