*     - 10x cards have control registers in IO and/or memory space;
  *     - 20x cards have control registers in standard PCI configuration space.
  *
+ * There are also Quartet Serial cards which use Oxford Semiconductor
+ * 16954 quad UART PCI chip clocked by 18.432 MHz quartz.
+ *
  * Note: some SIIG cards are probed by the parport_serial object.
  */
 
        pbn_b0_2_921600,
        pbn_b0_4_921600,
 
+       pbn_b0_4_1152000,
+
        pbn_b0_bt_1_115200,
        pbn_b0_bt_2_115200,
        pbn_b0_bt_8_115200,
                .base_baud      = 921600,
                .uart_offset    = 8,
        },
+       [pbn_b0_4_1152000] = {
+               .flags          = FL_BASE0,
+               .num_ports      = 4,
+               .base_baud      = 1152000,
+               .uart_offset    = 8,
+       },
 
        [pbn_b0_bt_1_115200] = {
                .flags          = FL_BASE0|FL_BASE_BARS,
        {       PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_OXSEMI_16PCI954,
                PCI_VENDOR_ID_SPECIALIX, PCI_SUBDEVICE_ID_SPECIALIX_SPEED4, 0, 0,
                pbn_b0_4_921600 },
+       {       PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
+               PCI_SUBVENDOR_ID_SIIG, PCI_SUBDEVICE_ID_SIIG_QUARTET_SERIAL, 0, 0,
+               pbn_b0_4_1152000 },
        {       PCI_VENDOR_ID_OXSEMI, PCI_DEVICE_ID_OXSEMI_16PCI954,
                PCI_ANY_ID, PCI_ANY_ID, 0, 0,
                pbn_b0_4_115200 },
 
 #define PCI_DEVICE_ID_CBOARDS_DAS1602_16 0x0001
 
 #define PCI_VENDOR_ID_SIIG             0x131f
+#define PCI_SUBVENDOR_ID_SIIG          0x131f
 #define PCI_DEVICE_ID_SIIG_1S_10x_550  0x1000
 #define PCI_DEVICE_ID_SIIG_1S_10x_650  0x1001
 #define PCI_DEVICE_ID_SIIG_1S_10x_850  0x1002
 #define PCI_DEVICE_ID_SIIG_2S1P_20x_550        0x2060
 #define PCI_DEVICE_ID_SIIG_2S1P_20x_650        0x2061
 #define PCI_DEVICE_ID_SIIG_2S1P_20x_850        0x2062
+#define PCI_SUBDEVICE_ID_SIIG_QUARTET_SERIAL   0x2050
 
 #define PCI_VENDOR_ID_RADISYS          0x1331
 #define PCI_DEVICE_ID_RADISYS_ENP2611  0x0030