ath5k: Check EEPROM before tweaking SERDES

[pandora-kernel.git] / drivers / net / wireless / ath / ath5k / eeprom.c

diff --git a/drivers/net/wireless/ath/ath5k/eeprom.c b/drivers/net/wireless/ath/ath5k/eeprom.c
index c56b494..8af477d 100644 (file)
--- a/drivers/net/wireless/ath/ath5k/eeprom.c
+++ b/drivers/net/wireless/ath/ath5k/eeprom.c
@@ -167,6 +167,16 @@ ath5k_eeprom_init_header(struct ath5k_hw *ah)
        ee->ee_rfkill_pin = (u8) AR5K_REG_MS(val, AR5K_EEPROM_RFKILL_GPIO_SEL);
        ee->ee_rfkill_pol = val & AR5K_EEPROM_RFKILL_POLARITY ? true : false;
 
+       /* Check if PCIE_OFFSET points to PCIE_SERDES_SECTION
+        * and enable serdes programming if needed.
+        *
+        * XXX: Serdes values seem to be fixed so
+        * no need to read them here, we write them
+        * during ath5k_hw_attach */
+       AR5K_EEPROM_READ(AR5K_EEPROM_PCIE_OFFSET, val);
+       ee->ee_serdes = (val == AR5K_EEPROM_PCIE_SERDES_SECTION) ?
+                                                       true : false;
+
        return 0;
 }