[SERIAL] Add HP Diva PCI serial port support.

drivers/serial/8250_pci.c

@@ -137,7 +137,29 @@ get_pci_port(struct pci_dev *dev, struct pci_board *board,
 			offset = 8 * (idx - 2);
 		}
 	}
-  
+
+	/* HP's Diva chip puts the 4th/5th serial port further out, and
+	 * some serial ports are supposed to be hidden on certain models.
+	 */
+	if (dev->vendor == PCI_VENDOR_ID_HP &&
+	    dev->device == PCI_DEVICE_ID_HP_DIVA) {
+		switch (dev->subsystem_device) {
+		case PCI_DEVICE_ID_HP_DIVA_MAESTRO:
+			if (idx == 3)
+				idx++;
+			break;
+		case PCI_DEVICE_ID_HP_DIVA_EVEREST:
+			if (idx > 0)
+				idx++;
+			if (idx > 2)
+				idx++;
+			break;
+		}
+		if (idx > 2) {
+			offset = 0x18;
+		}
+	}
+
 	port =  pci_resource_start(dev, base_idx) + offset;
 
 	if ((board->flags & SPCI_FL_BASE_TABLE) == 0)
@@ -379,6 +401,41 @@ pci_timedia_fn(struct pci_dev *dev, struct pci_board *board, int enable)
 	return 0;
 }
 
+/*
+ * HP's Remote Management Console.  The Diva chip came in several
+ * different versions.  N-class, L2000 and A500 have two Diva chips, each
+ * with 3 UARTs (the third UART on the second chip is unused).  Superdome
+ * and Keystone have one Diva chip with 3 UARTs.  Some later machines have
+ * one Diva chip, but it has been expanded to 5 UARTs.
+ */
+static int __devinit
+pci_hp_diva(struct pci_dev *dev, struct pci_board *board, int enable)
+{
+	if (!enable)
+		return 0;
+
+	switch (dev->subsystem_device) {
+	case PCI_DEVICE_ID_HP_DIVA_TOSCA1:
+	case PCI_DEVICE_ID_HP_DIVA_HALFDOME:
+	case PCI_DEVICE_ID_HP_DIVA_KEYSTONE:
+	case PCI_DEVICE_ID_HP_DIVA_EVEREST:
+		board->num_ports = 3;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_TOSCA2:
+		board->num_ports = 2;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_MAESTRO:
+		board->num_ports = 4;
+		break;
+	case PCI_DEVICE_ID_HP_DIVA_POWERBAR:
+		board->num_ports = 1;
+		break;
+	}
+
+	return 0;
+}
+
+
 static int __devinit
 pci_xircom_fn(struct pci_dev *dev, struct pci_board *board, int enable)
 {
@@ -423,6 +480,7 @@ enum pci_board_num_t {
 	pbn_b1_4_1382400,
 	pbn_b1_8_1382400,
 
+	pbn_b2_1_115200,
 	pbn_b2_8_115200,
 	pbn_b2_4_460800,
 	pbn_b2_8_460800,
@@ -443,6 +501,7 @@ enum pci_board_num_t {
 	pbn_timedia,
 	pbn_intel_i960,
 	pbn_sgi_ioc3,
+	pbn_hp_diva,
 	pbn_nec_nile4,
 
 	pbn_dci_pccom4,
@@ -501,6 +560,7 @@ static struct pci_board pci_boards[] __devinitdata = {
 	{ SPCI_FL_BASE1, 4, 1382400 },		/* pbn_b1_4_1382400 */
 	{ SPCI_FL_BASE1, 8, 1382400 },		/* pbn_b1_8_1382400 */
 
+	{ SPCI_FL_BASE2, 1, 115200 },		/* pbn_b2_1_115200 */
 	{ SPCI_FL_BASE2, 8, 115200 },		/* pbn_b2_8_115200 */
 	{ SPCI_FL_BASE2, 4, 460800 },		/* pbn_b2_4_460800 */
 	{ SPCI_FL_BASE2, 8, 460800 },		/* pbn_b2_8_460800 */
@@ -531,6 +591,7 @@ static struct pci_board pci_boards[] __devinitdata = {
 		8<<2, 2, pci_inteli960ni_fn, 0x10000},
 	{ SPCI_FL_BASE0 | SPCI_FL_IRQRESOURCE,		   /* pbn_sgi_ioc3 */
 		1, 458333, 0, 0, 0, 0x20178 },
+	{ SPCI_FL_BASE0, 5, 115200, 8, 0, pci_hp_diva, 0 },/* pbn_hp_diva */
 
 	/*
 	 * NEC Vrc-5074 (Nile 4) builtin UART.
@@ -1078,6 +1139,14 @@ static struct pci_device_id serial_pci_tbl[] __devinitdata = {
 		0xFF00, 0, 0, 0,
 		pbn_sgi_ioc3 },
 
+	/* HP Diva card */
+	{	PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_hp_diva },
+	{	PCI_VENDOR_ID_HP, PCI_DEVICE_ID_HP_DIVA_AUX,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b2_1_115200 },
+
 	/*
 	 * NEC Vrc-5074 (Nile 4) builtin UART.
 	 */

include/linux/pci_ids.h

@@ -506,13 +506,18 @@
 #define PCI_DEVICE_ID_HP_TACHLITE	0x1029
 #define PCI_DEVICE_ID_HP_J2585A		0x1030
 #define PCI_DEVICE_ID_HP_J2585B		0x1031
-#define PCI_DEVICE_ID_HP_SAS		0x1048
-#define PCI_DEVICE_ID_HP_DIVA1		0x1049
-#define PCI_DEVICE_ID_HP_DIVA2		0x104A
-#define PCI_DEVICE_ID_HP_SP2_0		0x104B
+#define PCI_DEVICE_ID_HP_DIVA		0x1048
+#define PCI_DEVICE_ID_HP_DIVA_TOSCA1	0x1049
+#define PCI_DEVICE_ID_HP_DIVA_TOSCA2	0x104A
+#define PCI_DEVICE_ID_HP_DIVA_MAESTRO	0x104B
+#define PCI_DEVICE_ID_HP_DIVA_HALFDOME	0x1223
+#define PCI_DEVICE_ID_HP_DIVA_KEYSTONE	0x1226
+#define PCI_DEVICE_ID_HP_DIVA_POWERBAR	0x1227
 #define PCI_DEVICE_ID_HP_ZX1_SBA	0x1229
 #define PCI_DEVICE_ID_HP_ZX1_IOC	0x122a
 #define PCI_DEVICE_ID_HP_ZX1_LBA	0x122e
+#define PCI_DEVICE_ID_HP_DIVA_EVEREST	0x1282
+#define PCI_DEVICE_ID_HP_DIVA_AUX	0x1290
 
 #define PCI_VENDOR_ID_PCTECH		0x1042
 #define PCI_DEVICE_ID_PCTECH_RZ1000	0x1000