ath9k: fall back to OTP ROM if the platform data does not contain valid eeprom data

SVN-Revision: 32044
13 years ago · b755998cd7
parent ffea8eb913
commit b755998cd7
1 changed files with 25 additions and 0 deletions
--- a/package/mac80211/patches/560-ath9k_ar9003_otp_fallback.patch
+++ 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)