diff --git a/drivers/net/wireless/rt2x00/rt2800.h b/drivers/net/wireless/rt2x00/rt2800.h
index c92fb2eee920..fac9ece22b23 100644
--- a/drivers/net/wireless/rt2x00/rt2800.h
+++ b/drivers/net/wireless/rt2x00/rt2800.h
@@ -1799,6 +1799,9 @@ struct mac_iveiv_entry {
  * RFCSR 3:
  */
 #define RFCSR3_K			FIELD8(0x0f)
+/* Bits [7-4] for RF3320 (RT3370/RT3390), on other chipsets reserved */
+#define RFCSR3_PA1_BIAS_CCK		FIELD8(0x70);
+#define RFCSR3_PA2_CASCODE_BIAS_CCKK	FIELD8(0x80);
 
 /*
  * FRCSR 5: