#define RF3021                         0x0007
 #define RF3022                         0x0008
 #define RF3052                         0x0009
+#define RF3320                         0x000b
 
 /*
  * Chipset version.
 #define NUM_TX_QUEUES                  4
 
 /*
- * USB registers.
+ * Registers.
  */
 
+/*
+ * OPT_14: Unknown register used by rt3xxx devices.
+ */
+#define OPT_14_CSR                     0x0114
+#define OPT_14_CSR_BIT0                        FIELD32(0x00000001)
+
 /*
  * INT_SOURCE_CSR: Interrupt source register.
  * Write one to clear corresponding bit.
  */
 #define EFUSE_DATA3                    0x059c
 
+/*
+ * LDO_CFG0
+ */
+#define LDO_CFG0                       0x05d4
+#define LDO_CFG0_DELAY3                        FIELD32(0x000000ff)
+#define LDO_CFG0_DELAY2                        FIELD32(0x0000ff00)
+#define LDO_CFG0_DELAY1                        FIELD32(0x00ff0000)
+#define LDO_CFG0_BGSEL                 FIELD32(0x03000000)
+#define LDO_CFG0_LDO_CORE_VLEVEL       FIELD32(0x1c000000)
+#define LD0_CFG0_LDO25_LEVEL           FIELD32(0x60000000)
+#define LDO_CFG0_LDO25_LARGEA          FIELD32(0x80000000)
+
+/*
+ * GPIO_SWITCH
+ */
+#define GPIO_SWITCH                    0x05dc
+#define GPIO_SWITCH_0                  FIELD32(0x00000001)
+#define GPIO_SWITCH_1                  FIELD32(0x00000002)
+#define GPIO_SWITCH_2                  FIELD32(0x00000004)
+#define GPIO_SWITCH_3                  FIELD32(0x00000008)
+#define GPIO_SWITCH_4                  FIELD32(0x00000010)
+#define GPIO_SWITCH_5                  FIELD32(0x00000020)
+#define GPIO_SWITCH_6                  FIELD32(0x00000040)
+#define GPIO_SWITCH_7                  FIELD32(0x00000080)
+
 /*
  * MAC Control/Status Registers(CSR).
  * Some values are set in TU, whereas 1 TU == 1024 us.
 #define BBP4_TX_BF                     FIELD8(0x01)
 #define BBP4_BANDWIDTH                 FIELD8(0x18)
 
+/*
+ * BBP 138: Unknown
+ */
+#define BBP138_RX_ADC1                 FIELD8(0x02)
+#define BBP138_RX_ADC2                 FIELD8(0x04)
+#define BBP138_TX_DAC1                 FIELD8(0x20)
+#define BBP138_TX_DAC2                 FIELD8(0x40)
+
 /*
  * RFCSR registers
  * The wordsize of the RFCSR is 8 bits.
 /*
  * RFCSR 6:
  */
-#define RFCSR6_R                       FIELD8(0x03)
+#define RFCSR6_R1                      FIELD8(0x03)
+#define RFCSR6_R2                      FIELD8(0x40)
 
 /*
  * RFCSR 7:
  */
 #define RFCSR12_TX_POWER               FIELD8(0x1f)
 
+/*
+ * RFCSR 17:
+ */
+#define RFCSR17_R1                     FIELD8(0x07)
+#define RFCSR17_R2                     FIELD8(0x08)
+#define RFCSR17_R3                     FIELD8(0x20)
+
+
 /*
  * RFCSR 22:
  */
 #define EEPROM_NIC_WPS_PBC             FIELD16(0x0080)
 #define EEPROM_NIC_BW40M_BG            FIELD16(0x0100)
 #define EEPROM_NIC_BW40M_A             FIELD16(0x0200)
+#define EEPROM_NIC_ANT_DIVERSITY       FIELD16(0x0800)
+#define EEPROM_NIC_DAC_TEST            FIELD16(0x8000)
 
 /*
  * EEPROM frequency
 
        rt2800_rfcsr_write(rt2x00dev, 3, rf->rf3);
 
        rt2800_rfcsr_read(rt2x00dev, 6, &rfcsr);
-       rt2x00_set_field8(&rfcsr, RFCSR6_R, rf->rf2);
+       rt2x00_set_field8(&rfcsr, RFCSR6_R1, rf->rf2);
        rt2800_rfcsr_write(rt2x00dev, 6, rfcsr);
 
        rt2800_rfcsr_read(rt2x00dev, 12, &rfcsr);