PHY_CSR3_READ_CONTROL
rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 0);
rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 1);
rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 0);
rt2x00_set_field32(®, PHY_CSR3_READ_CONTROL, 1);