diff --git a/drivers/serial/21285.c b/drivers/serial/21285.c
index 7aef7518..8c5c276 100644
--- a/drivers/serial/21285.c
+++ b/drivers/serial/21285.c
@@ -362,7 +362,7 @@
 
 static struct uart_port serial21285_port = {
 	.mapbase	= 0x42000160,
-	.iotype		= SERIAL_IO_MEM,
+	.iotype		= UPIO_MEM,
 	.irq		= NO_IRQ,
 	.fifosize	= 16,
 	.ops		= &serial21285_ops,
diff --git a/drivers/serial/amba-pl010.c b/drivers/serial/amba-pl010.c
index 429de27..321a3b3 100644
--- a/drivers/serial/amba-pl010.c
+++ b/drivers/serial/amba-pl010.c
@@ -561,7 +561,7 @@
 		.port	= {
 			.membase	= (void *)IO_ADDRESS(INTEGRATOR_UART0_BASE),
 			.mapbase	= INTEGRATOR_UART0_BASE,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= IRQ_UARTINT0,
 			.uartclk	= 14745600,
 			.fifosize	= 16,
@@ -576,7 +576,7 @@
 		.port	= {
 			.membase	= (void *)IO_ADDRESS(INTEGRATOR_UART1_BASE),
 			.mapbase	= INTEGRATOR_UART1_BASE,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= IRQ_UARTINT1,
 			.uartclk	= 14745600,
 			.fifosize	= 16,
diff --git a/drivers/serial/au1x00_uart.c b/drivers/serial/au1x00_uart.c
index ceb5d7f..344022fe 100644
--- a/drivers/serial/au1x00_uart.c
+++ b/drivers/serial/au1x00_uart.c
@@ -892,7 +892,7 @@
 	int ret = 0;
 
 	switch (up->port.iotype) {
-	case SERIAL_IO_MEM:
+	case UPIO_MEM:
 		if (up->port.mapbase) {
 			*res = request_mem_region(up->port.mapbase, size, "serial");
 			if (!*res)
@@ -900,8 +900,8 @@
 		}
 		break;
 
-	case SERIAL_IO_HUB6:
-	case SERIAL_IO_PORT:
+	case UPIO_HUB6:
+	case UPIO_PORT:
 		*res = request_region(up->port.iobase, size, "serial");
 		if (!*res)
 			ret = -EBUSY;
@@ -919,7 +919,7 @@
 	size <<= up->port.regshift;
 
 	switch (up->port.iotype) {
-	case SERIAL_IO_MEM:
+	case UPIO_MEM:
 		if (up->port.mapbase) {
 			/*
 			 * Unmap the area.
@@ -935,8 +935,8 @@
 		}
 		break;
 
-	case SERIAL_IO_HUB6:
-	case SERIAL_IO_PORT:
+	case UPIO_HUB6:
+	case UPIO_PORT:
 		start = up->port.iobase;
 
 		if (size)
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index 16af562..3d80846 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -908,7 +908,7 @@
 		.port = {
 			.irq		= SMC1_IRQ,
 			.ops		= &cpm_uart_pops,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.lock		= SPIN_LOCK_UNLOCKED,
 		},
 		.flags = FLAG_SMC,
@@ -922,7 +922,7 @@
 		.port = {
 			.irq		= SMC2_IRQ,
 			.ops		= &cpm_uart_pops,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.lock		= SPIN_LOCK_UNLOCKED,
 		},
 		.flags = FLAG_SMC,
@@ -939,7 +939,7 @@
 		.port = {
 			.irq		= SCC1_IRQ,
 			.ops		= &cpm_uart_pops,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.lock		= SPIN_LOCK_UNLOCKED,
 		},
 		.tx_nrfifos = TX_NUM_FIFO,
@@ -953,7 +953,7 @@
 		.port = {
 			.irq		= SCC2_IRQ,
 			.ops		= &cpm_uart_pops,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.lock		= SPIN_LOCK_UNLOCKED,
 		},
 		.tx_nrfifos = TX_NUM_FIFO,
@@ -967,7 +967,7 @@
 		.port = {
 			.irq		= SCC3_IRQ,
 			.ops		= &cpm_uart_pops,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.lock		= SPIN_LOCK_UNLOCKED,
 		},
 		.tx_nrfifos = TX_NUM_FIFO,
@@ -981,7 +981,7 @@
 		.port = {
 			.irq		= SCC4_IRQ,
 			.ops		= &cpm_uart_pops,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.lock		= SPIN_LOCK_UNLOCKED,
 		},
 		.tx_nrfifos = TX_NUM_FIFO,
diff --git a/drivers/serial/dz.c b/drivers/serial/dz.c
index a64ba26..5ff1e83 100644
--- a/drivers/serial/dz.c
+++ b/drivers/serial/dz.c
@@ -650,7 +650,7 @@
 	for (i = 0, dport = dz_ports; i < DZ_NB_PORT; i++, dport++) {
 		spin_lock_init(&dport->port.lock);
 		dport->port.membase	= (char *) base;
-		dport->port.iotype	= SERIAL_IO_PORT;
+		dport->port.iotype	= UPIO_PORT;
 		dport->port.irq		= dec_interrupt[DEC_IRQ_DZ11];
 		dport->port.line	= i;
 		dport->port.fifosize	= 1;
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index 858048e..4d53fb5 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -668,7 +668,7 @@
 	.rtsirq = UART1_MINT_RTS,
 	.port	= {
 		.type		= PORT_IMX,
-		.iotype		= SERIAL_IO_MEM,
+		.iotype		= UPIO_MEM,
 		.membase	= (void *)IMX_UART1_BASE,
 		.mapbase	= IMX_UART1_BASE, /* FIXME */
 		.irq		= UART1_MINT_RX,
@@ -684,7 +684,7 @@
 	.rtsirq = UART2_MINT_RTS,
 	.port	= {
 		.type		= PORT_IMX,
-		.iotype		= SERIAL_IO_MEM,
+		.iotype		= UPIO_MEM,
 		.membase	= (void *)IMX_UART2_BASE,
 		.mapbase	= IMX_UART2_BASE, /* FIXME */
 		.irq		= UART2_MINT_RX,
diff --git a/drivers/serial/mux.c b/drivers/serial/mux.c
index 4e49168..868eaf4 100644
--- a/drivers/serial/mux.c
+++ b/drivers/serial/mux.c
@@ -462,7 +462,7 @@
 		port->mapbase	= dev->hpa.start + MUX_OFFSET +
 						(i * MUX_LINE_OFFSET);
 		port->membase	= ioremap(port->mapbase, MUX_LINE_OFFSET);
-		port->iotype	= SERIAL_IO_MEM;
+		port->iotype	= UPIO_MEM;
 		port->type	= PORT_MUX;
 		port->irq	= NO_IRQ;
 		port->uartclk	= 0;
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index 4e03a87..9b7ed58 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -1492,7 +1492,7 @@
 	/*
 	 * Init remaining bits of "port" structure
 	 */
-	uap->port.iotype = SERIAL_IO_MEM;
+	uap->port.iotype = UPIO_MEM;
 	uap->port.irq = np->intrs[0].line;
 	uap->port.uartclk = ZS_CLOCK;
 	uap->port.fifosize = 1;
diff --git a/drivers/serial/sa1100.c b/drivers/serial/sa1100.c
index ff7b60b..2c00b86 100644
--- a/drivers/serial/sa1100.c
+++ b/drivers/serial/sa1100.c
@@ -628,7 +628,7 @@
 		sa1100_ports[i].port.ops       = &sa1100_pops;
 		sa1100_ports[i].port.fifosize  = 8;
 		sa1100_ports[i].port.line      = i;
-		sa1100_ports[i].port.iotype    = SERIAL_IO_MEM;
+		sa1100_ports[i].port.iotype    = UPIO_MEM;
 		init_timer(&sa1100_ports[i].timer);
 		sa1100_ports[i].timer.function = sa1100_timeout;
 		sa1100_ports[i].timer.data     = (unsigned long)&sa1100_ports[i];
diff --git a/drivers/serial/serial_lh7a40x.c b/drivers/serial/serial_lh7a40x.c
index d0490f6..04186ea 100644
--- a/drivers/serial/serial_lh7a40x.c
+++ b/drivers/serial/serial_lh7a40x.c
@@ -501,7 +501,7 @@
 		.port = {
 			.membase	= (void*) io_p2v (UART1_PHYS),
 			.mapbase	= UART1_PHYS,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= IRQ_UART1INTR,
 			.uartclk	= 14745600/2,
 			.fifosize	= 16,
@@ -514,7 +514,7 @@
 		.port = {
 			.membase	= (void*) io_p2v (UART2_PHYS),
 			.mapbase	= UART2_PHYS,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= IRQ_UART2INTR,
 			.uartclk	= 14745600/2,
 			.fifosize	= 16,
@@ -527,7 +527,7 @@
 		.port = {
 			.membase	= (void*) io_p2v (UART3_PHYS),
 			.mapbase	= UART3_PHYS,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= IRQ_UART3INTR,
 			.uartclk	= 14745600/2,
 			.fifosize	= 16,
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 80737c1..c903349 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -1468,7 +1468,7 @@
 		.port   = {
 			.membase	= (void *)0xff923000,
 			.mapbase	= 0xff923000,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= 61,
 			.ops		= &sci_uart_ops,
 			.flags		= ASYNC_BOOT_AUTOCONF,
@@ -1482,7 +1482,7 @@
 		.port   = {
 			.membase	= (void *)0xff924000,
 			.mapbase	= 0xff924000,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= 62,
 			.ops		= &sci_uart_ops,
 			.flags		= ASYNC_BOOT_AUTOCONF,
@@ -1496,7 +1496,7 @@
 		.port   = {
 			.membase	= (void *)0xff925000,
 			.mapbase	= 0xff925000,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= 63,
 			.ops		= &sci_uart_ops,
 			.flags		= ASYNC_BOOT_AUTOCONF,
@@ -1511,7 +1511,7 @@
 		.port   = {
 			.membase	= (void *)0xffe00000,
 			.mapbase	= 0xffe00000,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= 43,
 			.ops		= &sci_uart_ops,
 			.flags		= ASYNC_BOOT_AUTOCONF,
@@ -1525,7 +1525,7 @@
 		.port   = {
 			.membase	= (void *)0xffe10000,
 			.mapbase	= 0xffe10000,
-			.iotype		= SERIAL_IO_MEM,
+			.iotype		= UPIO_MEM,
 			.irq		= 79,
 			.ops		= &sci_uart_ops,
 			.flags		= ASYNC_BOOT_AUTOCONF,
diff --git a/drivers/serial/sunsab.c b/drivers/serial/sunsab.c
index 8bcaebc..8566422 100644
--- a/drivers/serial/sunsab.c
+++ b/drivers/serial/sunsab.c
@@ -1036,7 +1036,7 @@
 		up->port.irq = edev->irqs[0];
 		up->port.fifosize = SAB82532_XMIT_FIFO_SIZE;
 		up->port.mapbase = (unsigned long)up->regs;
-		up->port.iotype = SERIAL_IO_MEM;
+		up->port.iotype = UPIO_MEM;
 
 		writeb(SAB82532_IPC_IC_ACT_LOW, &up->regs->w.ipc);
 
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index bc67442..3087045 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -109,11 +109,11 @@
 	offset <<= up->port.regshift;
 
 	switch (up->port.iotype) {
-	case SERIAL_IO_HUB6:
+	case UPIO_HUB6:
 		outb(up->port.hub6 - 1 + offset, up->port.iobase);
 		return inb(up->port.iobase + 1);
 
-	case SERIAL_IO_MEM:
+	case UPIO_MEM:
 		return readb(up->port.membase + offset);
 
 	default:
@@ -139,12 +139,12 @@
 	offset <<= up->port.regshift;
 
 	switch (up->port.iotype) {
-	case SERIAL_IO_HUB6:
+	case UPIO_HUB6:
 		outb(up->port.hub6 - 1 + offset, up->port.iobase);
 		outb(value, up->port.iobase + 1);
 		break;
 
-	case SERIAL_IO_MEM:
+	case UPIO_MEM:
 		writeb(value, up->port.membase + offset);
 		break;
 
@@ -1052,7 +1052,7 @@
 		return;
 
 	up->type_probed = PORT_UNKNOWN;
-	up->port.iotype = SERIAL_IO_MEM;
+	up->port.iotype = UPIO_MEM;
 
 	/*
 	 * First we look for Ebus-bases su's
diff --git a/drivers/serial/sunzilog.c b/drivers/serial/sunzilog.c
index 3c72484..5cc4d4c 100644
--- a/drivers/serial/sunzilog.c
+++ b/drivers/serial/sunzilog.c
@@ -1487,7 +1487,7 @@
 		up[(chip * 2) + 1].port.membase = (void __iomem *)&rp->channelB;
 
 		/* Channel A */
-		up[(chip * 2) + 0].port.iotype = SERIAL_IO_MEM;
+		up[(chip * 2) + 0].port.iotype = UPIO_MEM;
 		up[(chip * 2) + 0].port.irq = zilog_irq;
 		up[(chip * 2) + 0].port.uartclk = ZS_CLOCK;
 		up[(chip * 2) + 0].port.fifosize = 1;
@@ -1498,7 +1498,7 @@
 		up[(chip * 2) + 0].flags |= SUNZILOG_FLAG_IS_CHANNEL_A;
 
 		/* Channel B */
-		up[(chip * 2) + 1].port.iotype = SERIAL_IO_MEM;
+		up[(chip * 2) + 1].port.iotype = UPIO_MEM;
 		up[(chip * 2) + 1].port.irq = zilog_irq;
 		up[(chip * 2) + 1].port.uartclk = ZS_CLOCK;
 		up[(chip * 2) + 1].port.fifosize = 1;
diff --git a/drivers/serial/v850e_uart.c b/drivers/serial/v850e_uart.c
index 9378895..df705fd 100644
--- a/drivers/serial/v850e_uart.c
+++ b/drivers/serial/v850e_uart.c
@@ -496,7 +496,7 @@
 
 			port->ops = &v850e_uart_ops;
 			port->line = chan;
-			port->iotype = SERIAL_IO_MEM;
+			port->iotype = UPIO_MEM;
 			port->flags = UPF_BOOT_AUTOCONF;
 
 			/* We actually use multiple IRQs, but the serial