[PATCH] Serial: Add support for SIIG Quartet serial card

Add support for SIIG Quartet Serial card.  This card has Oxford
Semiconducor 16954 quad UART which is clocked by 10x faster
(18.432 MHz) quartz.

Signed-off-by: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

drivers/serial/8250_pci.c

@@ -389,6 +389,9 @@ static void __devexit sbs_exit(struct pci_dev *dev)
  *     - 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.
  */
 
@@ -1026,6 +1029,8 @@ enum pci_board_num_t {
 	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,
@@ -1158,6 +1163,12 @@ static struct pci_board pci_boards[] __devinitdata = {
 		.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,
@@ -1977,6 +1988,9 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	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 },

include/linux/pci_ids.h

@@ -1872,6 +1872,7 @@
 #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
@@ -1909,6 +1910,7 @@
 #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