From b755998cd7d06275d2f98be337ed66de72f349c4 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Mon, 4 Jun 2012 10:42:03 +0000
Subject: [PATCH] ath9k: fall back to OTP ROM if the platform data does not
contain valid eeprom data
SVN-Revision: 32044
---
.../560-ath9k_ar9003_otp_fallback.patch | 25 +++++++++++++++++++
1 file changed, 25 insertions(+)
create mode 100644 package/mac80211/patches/560-ath9k_ar9003_otp_fallback.patch
diff --git a/package/mac80211/patches/560-ath9k_ar9003_otp_fallback.patch b/package/mac80211/patches/560-ath9k_ar9003_otp_fallback.patch
new file mode 100644
index 00000000000..8bcf44e4ac5
--- /dev/null
+++ b/package/mac80211/patches/560-ath9k_ar9003_otp_fallback.patch
@@ -0,0 +1,25 @@
+--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
+@@ -3260,10 +3260,20 @@ static int ar9300_eeprom_restore_interna
+ int it;
+ u16 checksum, mchecksum;
+ struct ath_common *common = ath9k_hw_common(ah);
++ struct ar9300_eeprom *eep;
+ eeprom_read_op read;
+
+- if (ath9k_hw_use_flash(ah))
+- return ar9300_eeprom_restore_flash(ah, mptr, mdata_size);
++ if (ath9k_hw_use_flash(ah)) {
++ u8 txrx;
++
++ ar9300_eeprom_restore_flash(ah, mptr, mdata_size);
++
++ /* check if eeprom contains valid data */
++ eep = (struct ar9300_eeprom *) mptr;
++ txrx = eep->baseEepHeader.txrxMask;
++ if (txrx != 0 && txrx != 0xff)
++ return 0;
++ }
+
+ word = kzalloc(2048, GFP_KERNEL);
+ if (!word)
--
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