Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (408 commits)
  [POWERPC] Add memchr() to the bootwrapper
  [POWERPC] Implement logging of unhandled signals
  [POWERPC] Add legacy serial support for OPB with flattened device tree
  [POWERPC] Use 1TB segments
  [POWERPC] XilinxFB: Allow fixed framebuffer base address
  [POWERPC] XilinxFB: Add support for custom screen resolution
  [POWERPC] XilinxFB: Use pdata to pass around framebuffer parameters
  [POWERPC] PCI: Add 64-bit physical address support to setup_indirect_pci
  [POWERPC] 4xx: Kilauea defconfig file
  [POWERPC] 4xx: Kilauea DTS
  [POWERPC] 4xx: Add AMCC Kilauea eval board support to platforms/40x
  [POWERPC] 4xx: Add AMCC 405EX support to cputable.c
  [POWERPC] Adjust TASK_SIZE on ppc32 systems to 3GB that are capable
  [POWERPC] Use PAGE_OFFSET to tell if an address is user/kernel in SW TLB handlers
  [POWERPC] 85xx: Enable FP emulation in MPC8560 ADS defconfig
  [POWERPC] 85xx: Killed <asm/mpc85xx.h>
  [POWERPC] 85xx: Add cpm nodes for 8541/8555 CDS
  [POWERPC] 85xx: Convert mpc8560ads to the new CPM binding.
  [POWERPC] mpc8272ads: Remove muram from the CPM reg property.
  [POWERPC] Make clockevents work on PPC601 processors
  ...

Fixed up conflict in Documentation/powerpc/booting-without-of.txt manually.

10 files changed, 735 insertions, 261 deletions

diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index 81b52b7..d6ae38e 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -986,6 +986,31 @@ config SERIAL_PMACZILOG
 	  PowerMac machines.
 	  Say Y or M if you want to be able to these serial ports.
 
+config SERIAL_PMACZILOG_TTYS
+	bool "Use ttySn device nodes for Zilog z85c30"
+	depends on SERIAL_PMACZILOG
+	help
+	  The pmac_zilog driver for the z85C30 chip on many powermacs
+	  historically used the device numbers for /dev/ttySn.  The
+	  8250 serial port driver also uses these numbers, which means
+	  the two drivers being unable to coexist; you could not use
+	  both z85C30 and 8250 type ports at the same time.
+
+	  If this option is not selected, the pmac_zilog driver will
+	  use the device numbers allocated for /dev/ttyPZn.  This allows
+	  the pmac_zilog and 8250 drivers to co-exist, but may cause
+	  existing userspace setups to break.  Programs that need to
+	  access the built-in serial ports on powermacs will need to
+	  be reconfigured to use /dev/ttyPZn instead of /dev/ttySn.
+
+	  If you enable this option, any z85c30 ports in the system will
+	  be registered as ttyS0 onwards as in the past, and you will be
+	  unable to use the 8250 module for PCMCIA or other 16C550-style
+	  UARTs.
+
+	  Say N unless you need the z85c30 ports on your powermac
+	  to appear as /dev/ttySn.
+
 config SERIAL_PMACZILOG_CONSOLE
 	bool "Console on PowerMac z85c30 serial port"
 	depends on SERIAL_PMACZILOG=y
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index a8f894c..32b9737 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -56,21 +56,21 @@ struct uart_cpm_port {
 	u16			rx_fifosize;
 	u16			tx_nrfifos;
 	u16			tx_fifosize;
-	smc_t			*smcp;
-	smc_uart_t		*smcup;
-	scc_t			*sccp;
-	scc_uart_t		*sccup;
-	volatile cbd_t		*rx_bd_base;
-	volatile cbd_t		*rx_cur;
-	volatile cbd_t		*tx_bd_base;
-	volatile cbd_t		*tx_cur;
+	smc_t __iomem		*smcp;
+	smc_uart_t __iomem	*smcup;
+	scc_t __iomem		*sccp;
+	scc_uart_t __iomem	*sccup;
+	cbd_t __iomem		*rx_bd_base;
+	cbd_t __iomem		*rx_cur;
+	cbd_t __iomem		*tx_bd_base;
+	cbd_t __iomem		*tx_cur;
 	unsigned char		*tx_buf;
 	unsigned char		*rx_buf;
 	u32			flags;
 	void			(*set_lineif)(struct uart_cpm_port *);
 	u8			brg;
 	uint			 dp_addr;
-	void			*mem_addr;
+	void 			*mem_addr;
 	dma_addr_t		 dma_addr;
 	u32			mem_size;
 	/* helpers */
@@ -80,14 +80,18 @@ struct uart_cpm_port {
 	int			is_portb;
 	/* wait on close if needed */
 	int 			wait_closing;
+	/* value to combine with opcode to form cpm command */
+	u32			command;
 };
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 extern int cpm_uart_port_map[UART_NR];
+#endif
 extern int cpm_uart_nr;
 extern struct uart_cpm_port cpm_uart_ports[UART_NR];
 
 /* these are located in their respective files */
-void cpm_line_cr_cmd(int line, int cmd);
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd);
 int cpm_uart_init_portdesc(void);
 int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con);
 void cpm_uart_freebuf(struct uart_cpm_port *pinfo);
@@ -102,34 +106,36 @@ void scc4_lineif(struct uart_cpm_port *pinfo);
 /*
    virtual to phys transtalion
 */
-static inline unsigned long cpu2cpm_addr(void* addr, struct uart_cpm_port *pinfo)
+static inline unsigned long cpu2cpm_addr(void *addr,
+                                         struct uart_cpm_port *pinfo)
 {
 	int offset;
 	u32 val = (u32)addr;
+	u32 mem = (u32)pinfo->mem_addr;
 	/* sane check */
-	if (likely((val >= (u32)pinfo->mem_addr)) &&
-			(val<((u32)pinfo->mem_addr + pinfo->mem_size))) {
-		offset = val - (u32)pinfo->mem_addr;
-		return pinfo->dma_addr+offset;
+	if (likely(val >= mem && val < mem + pinfo->mem_size)) {
+		offset = val - mem;
+		return pinfo->dma_addr + offset;
 	}
 	/* something nasty happened */
 	BUG();
 	return 0;
 }
 
-static inline void *cpm2cpu_addr(unsigned long addr, struct uart_cpm_port *pinfo)
+static inline void *cpm2cpu_addr(unsigned long addr,
+                                 struct uart_cpm_port *pinfo)
 {
 	int offset;
 	u32 val = addr;
+	u32 dma = (u32)pinfo->dma_addr;
 	/* sane check */
-	if (likely((val >= pinfo->dma_addr) &&
-			(val<(pinfo->dma_addr + pinfo->mem_size)))) {
-		offset = val - (u32)pinfo->dma_addr;
-		return (void*)(pinfo->mem_addr+offset);
+	if (likely(val >= dma && val < dma + pinfo->mem_size)) {
+		offset = val - dma;
+		return pinfo->mem_addr + offset;
 	}
 	/* something nasty happened */
 	BUG();
-	return 0;
+	return NULL;
 }
 
 
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index cefde58..b5e4478 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -10,7 +10,7 @@
  *  Maintainer: Kumar Gala (galak@kernel.crashing.org) (CPM2)
  *              Pantelis Antoniou (panto@intracom.gr) (CPM1)
  *
- *  Copyright (C) 2004 Freescale Semiconductor, Inc.
+ *  Copyright (C) 2004, 2007 Freescale Semiconductor, Inc.
  *            (C) 2004 Intracom, S.A.
  *            (C) 2005-2006 MontaVista Software, Inc.
  * 		Vitaly Bordug <vbordug@ru.mvista.com>
@@ -47,6 +47,11 @@
 #include <asm/irq.h>
 #include <asm/delay.h>
 #include <asm/fs_pd.h>
+#include <asm/udbg.h>
+
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+#include <linux/of_platform.h>
+#endif
 
 #if defined(CONFIG_SERIAL_CPM_CONSOLE) && defined(CONFIG_MAGIC_SYSRQ)
 #define SUPPORT_SYSRQ
@@ -57,12 +62,6 @@
 
 #include "cpm_uart.h"
 
-/***********************************************************************/
-
-/* Track which ports are configured as uarts */
-int cpm_uart_port_map[UART_NR];
-/* How many ports did we config as uarts */
-int cpm_uart_nr = 0;
 
 /**************************************************************/
 
@@ -73,6 +72,11 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo);
 
 /**************************************************************/
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
+/* Track which ports are configured as uarts */
+int cpm_uart_port_map[UART_NR];
+/* How many ports did we config as uarts */
+int cpm_uart_nr;
 
 /* Place-holder for board-specific stuff */
 struct platform_device* __attribute__ ((weak)) __init
@@ -119,6 +123,7 @@ static int cpm_uart_id2nr(int id)
 	/* not found or invalid argument */
 	return -1;
 }
+#endif
 
 /*
  * Check, if transmit buffers are processed
@@ -126,14 +131,14 @@ static int cpm_uart_id2nr(int id)
 static unsigned int cpm_uart_tx_empty(struct uart_port *port)
 {
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile cbd_t *bdp = pinfo->tx_bd_base;
+	cbd_t __iomem *bdp = pinfo->tx_bd_base;
 	int ret = 0;
 
 	while (1) {
-		if (bdp->cbd_sc & BD_SC_READY)
+		if (in_be16(&bdp->cbd_sc) & BD_SC_READY)
 			break;
 
-		if (bdp->cbd_sc & BD_SC_WRAP) {
+		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP) {
 			ret = TIOCSER_TEMT;
 			break;
 		}
@@ -162,15 +167,15 @@ static unsigned int cpm_uart_get_mctrl(struct uart_port *port)
 static void cpm_uart_stop_tx(struct uart_port *port)
 {
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile smc_t *smcp = pinfo->smcp;
-	volatile scc_t *sccp = pinfo->sccp;
+	smc_t __iomem *smcp = pinfo->smcp;
+	scc_t __iomem *sccp = pinfo->sccp;
 
 	pr_debug("CPM uart[%d]:stop tx\n", port->line);
 
 	if (IS_SMC(pinfo))
-		smcp->smc_smcm &= ~SMCM_TX;
+		clrbits8(&smcp->smc_smcm, SMCM_TX);
 	else
-		sccp->scc_sccm &= ~UART_SCCM_TX;
+		clrbits16(&sccp->scc_sccm, UART_SCCM_TX);
 }
 
 /*
@@ -179,24 +184,24 @@ static void cpm_uart_stop_tx(struct uart_port *port)
 static void cpm_uart_start_tx(struct uart_port *port)
 {
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile smc_t *smcp = pinfo->smcp;
-	volatile scc_t *sccp = pinfo->sccp;
+	smc_t __iomem *smcp = pinfo->smcp;
+	scc_t __iomem *sccp = pinfo->sccp;
 
 	pr_debug("CPM uart[%d]:start tx\n", port->line);
 
 	if (IS_SMC(pinfo)) {
-		if (smcp->smc_smcm & SMCM_TX)
+		if (in_8(&smcp->smc_smcm) & SMCM_TX)
 			return;
 	} else {
-		if (sccp->scc_sccm & UART_SCCM_TX)
+		if (in_be16(&sccp->scc_sccm) & UART_SCCM_TX)
 			return;
 	}
 
 	if (cpm_uart_tx_pump(port) != 0) {
 		if (IS_SMC(pinfo)) {
-			smcp->smc_smcm |= SMCM_TX;
+			setbits8(&smcp->smc_smcm, SMCM_TX);
 		} else {
-			sccp->scc_sccm |= UART_SCCM_TX;
+			setbits16(&sccp->scc_sccm, UART_SCCM_TX);
 		}
 	}
 }
@@ -207,15 +212,15 @@ static void cpm_uart_start_tx(struct uart_port *port)
 static void cpm_uart_stop_rx(struct uart_port *port)
 {
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile smc_t *smcp = pinfo->smcp;
-	volatile scc_t *sccp = pinfo->sccp;
+	smc_t __iomem *smcp = pinfo->smcp;
+	scc_t __iomem *sccp = pinfo->sccp;
 
 	pr_debug("CPM uart[%d]:stop rx\n", port->line);
 
 	if (IS_SMC(pinfo))
-		smcp->smc_smcm &= ~SMCM_RX;
+		clrbits8(&smcp->smc_smcm, SMCM_RX);
 	else
-		sccp->scc_sccm &= ~UART_SCCM_RX;
+		clrbits16(&sccp->scc_sccm, UART_SCCM_RX);
 }
 
 /*
@@ -232,15 +237,14 @@ static void cpm_uart_enable_ms(struct uart_port *port)
 static void cpm_uart_break_ctl(struct uart_port *port, int break_state)
 {
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	int line = pinfo - cpm_uart_ports;
 
 	pr_debug("CPM uart[%d]:break ctrl, break_state: %d\n", port->line,
 		break_state);
 
 	if (break_state)
-		cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
+		cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
 	else
-		cpm_line_cr_cmd(line, CPM_CR_RESTART_TX);
+		cpm_line_cr_cmd(pinfo, CPM_CR_RESTART_TX);
 }
 
 /*
@@ -259,10 +263,11 @@ static void cpm_uart_int_tx(struct uart_port *port)
 static void cpm_uart_int_rx(struct uart_port *port)
 {
 	int i;
-	unsigned char ch, *cp;
+	unsigned char ch;
+	u8 *cp;
 	struct tty_struct *tty = port->info->tty;
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile cbd_t *bdp;
+	cbd_t __iomem *bdp;
 	u16 status;
 	unsigned int flg;
 
@@ -274,13 +279,13 @@ static void cpm_uart_int_rx(struct uart_port *port)
 	bdp = pinfo->rx_cur;
 	for (;;) {
 		/* get status */
-		status = bdp->cbd_sc;
+		status = in_be16(&bdp->cbd_sc);
 		/* If this one is empty, return happy */
 		if (status & BD_SC_EMPTY)
 			break;
 
 		/* get number of characters, and check spce in flip-buffer */
-		i = bdp->cbd_datlen;
+		i = in_be16(&bdp->cbd_datlen);
 
 		/* If we have not enough room in tty flip buffer, then we try
 		 * later, which will be the next rx-interrupt or a timeout
@@ -291,7 +296,7 @@ static void cpm_uart_int_rx(struct uart_port *port)
 		}
 
 		/* get pointer */
-		cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
+		cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
 
 		/* loop through the buffer */
 		while (i-- > 0) {
@@ -311,10 +316,11 @@ static void cpm_uart_int_rx(struct uart_port *port)
 		}		/* End while (i--) */
 
 		/* This BD is ready to be used again. Clear status. get next */
-		bdp->cbd_sc &= ~(BD_SC_BR | BD_SC_FR | BD_SC_PR | BD_SC_OV | BD_SC_ID);
-		bdp->cbd_sc |= BD_SC_EMPTY;
+		clrbits16(&bdp->cbd_sc, BD_SC_BR | BD_SC_FR | BD_SC_PR |
+		                        BD_SC_OV | BD_SC_ID);
+		setbits16(&bdp->cbd_sc, BD_SC_EMPTY);
 
-		if (bdp->cbd_sc & BD_SC_WRAP)
+		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
 			bdp = pinfo->rx_bd_base;
 		else
 			bdp++;
@@ -322,7 +328,7 @@ static void cpm_uart_int_rx(struct uart_port *port)
 	} /* End for (;;) */
 
 	/* Write back buffer pointer */
-	pinfo->rx_cur = (volatile cbd_t *) bdp;
+	pinfo->rx_cur = bdp;
 
 	/* activate BH processing */
 	tty_flip_buffer_push(tty);
@@ -376,14 +382,14 @@ static irqreturn_t cpm_uart_int(int irq, void *data)
 	u8 events;
 	struct uart_port *port = (struct uart_port *)data;
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile smc_t *smcp = pinfo->smcp;
-	volatile scc_t *sccp = pinfo->sccp;
+	smc_t __iomem *smcp = pinfo->smcp;
+	scc_t __iomem *sccp = pinfo->sccp;
 
 	pr_debug("CPM uart[%d]:IRQ\n", port->line);
 
 	if (IS_SMC(pinfo)) {
-		events = smcp->smc_smce;
-		smcp->smc_smce = events;
+		events = in_8(&smcp->smc_smce);
+		out_8(&smcp->smc_smce, events);
 		if (events & SMCM_BRKE)
 			uart_handle_break(port);
 		if (events & SMCM_RX)
@@ -391,8 +397,8 @@ static irqreturn_t cpm_uart_int(int irq, void *data)
 		if (events & SMCM_TX)
 			cpm_uart_int_tx(port);
 	} else {
-		events = sccp->scc_scce;
-		sccp->scc_scce = events;
+		events = in_be16(&sccp->scc_scce);
+		out_be16(&sccp->scc_scce, events);
 		if (events & UART_SCCM_BRKE)
 			uart_handle_break(port);
 		if (events & UART_SCCM_RX)
@@ -407,7 +413,6 @@ static int cpm_uart_startup(struct uart_port *port)
 {
 	int retval;
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	int line = pinfo - cpm_uart_ports;
 
 	pr_debug("CPM uart[%d]:startup\n", port->line);
 
@@ -418,15 +423,15 @@ static int cpm_uart_startup(struct uart_port *port)
 
 	/* Startup rx-int */
 	if (IS_SMC(pinfo)) {
-		pinfo->smcp->smc_smcm |= SMCM_RX;
-		pinfo->smcp->smc_smcmr |= (SMCMR_REN | SMCMR_TEN);
+		setbits8(&pinfo->smcp->smc_smcm, SMCM_RX);
+		setbits16(&pinfo->smcp->smc_smcmr, (SMCMR_REN | SMCMR_TEN));
 	} else {
-		pinfo->sccp->scc_sccm |= UART_SCCM_RX;
-		pinfo->sccp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+		setbits16(&pinfo->sccp->scc_sccm, UART_SCCM_RX);
+		setbits32(&pinfo->sccp->scc_gsmrl, (SCC_GSMRL_ENR | SCC_GSMRL_ENT));
 	}
 
 	if (!(pinfo->flags & FLAG_CONSOLE))
-		cpm_line_cr_cmd(line,CPM_CR_INIT_TRX);
+		cpm_line_cr_cmd(pinfo, CPM_CR_INIT_TRX);
 	return 0;
 }
 
@@ -442,7 +447,6 @@ inline void cpm_uart_wait_until_send(struct uart_cpm_port *pinfo)
 static void cpm_uart_shutdown(struct uart_port *port)
 {
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	int line = pinfo - cpm_uart_ports;
 
 	pr_debug("CPM uart[%d]:shutdown\n", port->line);
 
@@ -462,20 +466,20 @@ static void cpm_uart_shutdown(struct uart_port *port)
 
 		/* Stop uarts */
 		if (IS_SMC(pinfo)) {
-			volatile smc_t *smcp = pinfo->smcp;
-			smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
-			smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
+			smc_t __iomem *smcp = pinfo->smcp;
+			clrbits16(&smcp->smc_smcmr, SMCMR_REN | SMCMR_TEN);
+			clrbits8(&smcp->smc_smcm, SMCM_RX | SMCM_TX);
 		} else {
-			volatile scc_t *sccp = pinfo->sccp;
-			sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
-			sccp->scc_sccm &= ~(UART_SCCM_TX | UART_SCCM_RX);
+			scc_t __iomem *sccp = pinfo->sccp;
+			clrbits32(&sccp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+			clrbits16(&sccp->scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
 		}
 
 		/* Shut them really down and reinit buffer descriptors */
 		if (IS_SMC(pinfo))
-			cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
+			cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
 		else
-			cpm_line_cr_cmd(line, CPM_CR_GRA_STOP_TX);
+			cpm_line_cr_cmd(pinfo, CPM_CR_GRA_STOP_TX);
 
 		cpm_uart_initbd(pinfo);
 	}
@@ -490,8 +494,8 @@ static void cpm_uart_set_termios(struct uart_port *port,
 	u16 cval, scval, prev_mode;
 	int bits, sbits;
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
-	volatile smc_t *smcp = pinfo->smcp;
-	volatile scc_t *sccp = pinfo->sccp;
+	smc_t __iomem *smcp = pinfo->smcp;
+	scc_t __iomem *sccp = pinfo->sccp;
 
 	pr_debug("CPM uart[%d]:set_termios\n", port->line);
 
@@ -586,16 +590,15 @@ static void cpm_uart_set_termios(struct uart_port *port,
 		 * enables, because we want to put them back if they were
 		 * present.
 		 */
-		prev_mode = smcp->smc_smcmr;
-		smcp->smc_smcmr = smcr_mk_clen(bits) | cval | SMCMR_SM_UART;
-		smcp->smc_smcmr |= (prev_mode & (SMCMR_REN | SMCMR_TEN));
+		prev_mode = in_be16(&smcp->smc_smcmr);
+		out_be16(&smcp->smc_smcmr, smcr_mk_clen(bits) | cval | SMCMR_SM_UART);
+		setbits16(&smcp->smc_smcmr, (prev_mode & (SMCMR_REN | SMCMR_TEN)));
 	} else {
-		sccp->scc_psmr = (sbits << 12) | scval;
+		out_be16(&sccp->scc_psmr, (sbits << 12) | scval);
 	}
 
 	cpm_set_brg(pinfo->brg - 1, baud);
 	spin_unlock_irqrestore(&port->lock, flags);
-
 }
 
 static const char *cpm_uart_type(struct uart_port *port)
@@ -629,8 +632,8 @@ static int cpm_uart_verify_port(struct uart_port *port,
  */
 static int cpm_uart_tx_pump(struct uart_port *port)
 {
-	volatile cbd_t *bdp;
-	unsigned char *p;
+	cbd_t __iomem *bdp;
+	u8 *p;
 	int count;
 	struct uart_cpm_port *pinfo = (struct uart_cpm_port *)port;
 	struct circ_buf *xmit = &port->info->xmit;
@@ -640,13 +643,14 @@ static int cpm_uart_tx_pump(struct uart_port *port)
 		/* Pick next descriptor and fill from buffer */
 		bdp = pinfo->tx_cur;
 
-		p = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
+		p = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
 
 		*p++ = port->x_char;
-		bdp->cbd_datlen = 1;
-		bdp->cbd_sc |= BD_SC_READY;
+
+		out_be16(&bdp->cbd_datlen, 1);
+		setbits16(&bdp->cbd_sc, BD_SC_READY);
 		/* Get next BD. */
-		if (bdp->cbd_sc & BD_SC_WRAP)
+		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
 			bdp = pinfo->tx_bd_base;
 		else
 			bdp++;
@@ -665,9 +669,10 @@ static int cpm_uart_tx_pump(struct uart_port *port)
 	/* Pick next descriptor and fill from buffer */
 	bdp = pinfo->tx_cur;
 
-	while (!(bdp->cbd_sc & BD_SC_READY) && (xmit->tail != xmit->head)) {
+	while (!(in_be16(&bdp->cbd_sc) & BD_SC_READY) &&
+	       xmit->tail != xmit->head) {
 		count = 0;
-		p = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
+		p = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
 		while (count < pinfo->tx_fifosize) {
 			*p++ = xmit->buf[xmit->tail];
 			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@@ -676,11 +681,10 @@ static int cpm_uart_tx_pump(struct uart_port *port)
 			if (xmit->head == xmit->tail)
 				break;
 		}
-		bdp->cbd_datlen = count;
-		bdp->cbd_sc |= BD_SC_READY;
-		eieio();
+		out_be16(&bdp->cbd_datlen, count);
+		setbits16(&bdp->cbd_sc, BD_SC_READY);
 		/* Get next BD. */
-		if (bdp->cbd_sc & BD_SC_WRAP)
+		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
 			bdp = pinfo->tx_bd_base;
 		else
 			bdp++;
@@ -705,7 +709,7 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo)
 {
 	int i;
 	u8 *mem_addr;
-	volatile cbd_t *bdp;
+	cbd_t __iomem *bdp;
 
 	pr_debug("CPM uart[%d]:initbd\n", pinfo->port.line);
 
@@ -716,13 +720,13 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo)
 	mem_addr = pinfo->mem_addr;
 	bdp = pinfo->rx_cur = pinfo->rx_bd_base;
 	for (i = 0; i < (pinfo->rx_nrfifos - 1); i++, bdp++) {
-		bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
-		bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
+		out_be32(&bdp->cbd_bufaddr, cpu2cpm_addr(mem_addr, pinfo));
+		out_be16(&bdp->cbd_sc, BD_SC_EMPTY | BD_SC_INTRPT);
 		mem_addr += pinfo->rx_fifosize;
 	}
 
-	bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
-	bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
+	out_be32(&bdp->cbd_bufaddr, cpu2cpm_addr(mem_addr, pinfo));
+	out_be16(&bdp->cbd_sc, BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT);
 
 	/* Set the physical address of the host memory
 	 * buffers in the buffer descriptors, and the
@@ -731,20 +735,19 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo)
 	mem_addr = pinfo->mem_addr + L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize);
 	bdp = pinfo->tx_cur = pinfo->tx_bd_base;
 	for (i = 0; i < (pinfo->tx_nrfifos - 1); i++, bdp++) {
-		bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
-		bdp->cbd_sc = BD_SC_INTRPT;
+		out_be32(&bdp->cbd_bufaddr, cpu2cpm_addr(mem_addr, pinfo));
+		out_be16(&bdp->cbd_sc, BD_SC_INTRPT);
 		mem_addr += pinfo->tx_fifosize;
 	}
 
-	bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
-	bdp->cbd_sc = BD_SC_WRAP | BD_SC_INTRPT;
+	out_be32(&bdp->cbd_bufaddr, cpu2cpm_addr(mem_addr, pinfo));
+	out_be16(&bdp->cbd_sc, BD_SC_WRAP | BD_SC_INTRPT);
 }
 
 static void cpm_uart_init_scc(struct uart_cpm_port *pinfo)
 {
-	int line = pinfo - cpm_uart_ports;
-	volatile scc_t *scp;
-	volatile scc_uart_t *sup;
+	scc_t __iomem *scp;
+	scc_uart_t __iomem *sup;
 
 	pr_debug("CPM uart[%d]:init_scc\n", pinfo->port.line);
 
@@ -752,8 +755,10 @@ static void cpm_uart_init_scc(struct uart_cpm_port *pinfo)
 	sup = pinfo->sccup;
 
 	/* Store address */
-	pinfo->sccup->scc_genscc.scc_rbase = (unsigned char *)pinfo->rx_bd_base - DPRAM_BASE;
-	pinfo->sccup->scc_genscc.scc_tbase = (unsigned char *)pinfo->tx_bd_base - DPRAM_BASE;
+	out_be16(&pinfo->sccup->scc_genscc.scc_rbase,
+	         (u8 __iomem *)pinfo->rx_bd_base - DPRAM_BASE);
+	out_be16(&pinfo->sccup->scc_genscc.scc_tbase,
+	         (u8 __iomem *)pinfo->tx_bd_base - DPRAM_BASE);
 
 	/* Set up the uart parameters in the
 	 * parameter ram.
@@ -761,51 +766,50 @@ static void cpm_uart_init_scc(struct uart_cpm_port *pinfo)
 
 	cpm_set_scc_fcr(sup);
 
-	sup->scc_genscc.scc_mrblr = pinfo->rx_fifosize;
-	sup->scc_maxidl = pinfo->rx_fifosize;
-	sup->scc_brkcr = 1;
-	sup->scc_parec = 0;
-	sup->scc_frmec = 0;
-	sup->scc_nosec = 0;
-	sup->scc_brkec = 0;
-	sup->scc_uaddr1 = 0;
-	sup->scc_uaddr2 = 0;
-	sup->scc_toseq = 0;
-	sup->scc_char1 = 0x8000;
-	sup->scc_char2 = 0x8000;
-	sup->scc_char3 = 0x8000;
-	sup->scc_char4 = 0x8000;
-	sup->scc_char5 = 0x8000;
-	sup->scc_char6 = 0x8000;
-	sup->scc_char7 = 0x8000;
-	sup->scc_char8 = 0x8000;
-	sup->scc_rccm = 0xc0ff;
+	out_be16(&sup->scc_genscc.scc_mrblr, pinfo->rx_fifosize);
+	out_be16(&sup->scc_maxidl, pinfo->rx_fifosize);
+	out_be16(&sup->scc_brkcr, 1);
+	out_be16(&sup->scc_parec, 0);
+	out_be16(&sup->scc_frmec, 0);
+	out_be16(&sup->scc_nosec, 0);
+	out_be16(&sup->scc_brkec, 0);
+	out_be16(&sup->scc_uaddr1, 0);
+	out_be16(&sup->scc_uaddr2, 0);
+	out_be16(&sup->scc_toseq, 0);
+	out_be16(&sup->scc_char1, 0x8000);
+	out_be16(&sup->scc_char2, 0x8000);
+	out_be16(&sup->scc_char3, 0x8000);
+	out_be16(&sup->scc_char4, 0x8000);
+	out_be16(&sup->scc_char5, 0x8000);
+	out_be16(&sup->scc_char6, 0x8000);
+	out_be16(&sup->scc_char7, 0x8000);
+	out_be16(&sup->scc_char8, 0x8000);
+	out_be16(&sup->scc_rccm, 0xc0ff);
 
 	/* Send the CPM an initialize command.
 	 */
-	cpm_line_cr_cmd(line, CPM_CR_INIT_TRX);
+	cpm_line_cr_cmd(pinfo, CPM_CR_INIT_TRX);
 
 	/* Set UART mode, 8 bit, no parity, one stop.
 	 * Enable receive and transmit.
 	 */
-	scp->scc_gsmrh = 0;
-	scp->scc_gsmrl =
-	    (SCC_GSMRL_MODE_UART | SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16);
+	out_be32(&scp->scc_gsmrh, 0);
+	out_be32(&scp->scc_gsmrl,
+	         SCC_GSMRL_MODE_UART | SCC_GSMRL_TDCR_16 | SCC_GSMRL_RDCR_16);
 
 	/* Enable rx interrupts  and clear all pending events.  */
-	scp->scc_sccm = 0;
-	scp->scc_scce = 0xffff;
-	scp->scc_dsr = 0x7e7e;
-	scp->scc_psmr = 0x3000;
+	out_be16(&scp->scc_sccm, 0);
+	out_be16(&scp->scc_scce, 0xffff);
+	out_be16(&scp->scc_dsr, 0x7e7e);
+	out_be16(&scp->scc_psmr, 0x3000);
 
-	scp->scc_gsmrl |= (SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+	setbits32(&scp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
 }
 
 static void cpm_uart_init_smc(struct uart_cpm_port *pinfo)
 {
-	int line = pinfo - cpm_uart_ports;
-	volatile smc_t *sp;
-	volatile smc_uart_t *up;
+	smc_t __iomem *sp;
+	smc_uart_t __iomem *up;
 
 	pr_debug("CPM uart[%d]:init_smc\n", pinfo->port.line);
 
@@ -813,19 +817,21 @@ static void cpm_uart_init_smc(struct uart_cpm_port *pinfo)
 	up = pinfo->smcup;
 
 	/* Store address */
-	pinfo->smcup->smc_rbase = (u_char *)pinfo->rx_bd_base - DPRAM_BASE;
-	pinfo->smcup->smc_tbase = (u_char *)pinfo->tx_bd_base - DPRAM_BASE;
+	out_be16(&pinfo->smcup->smc_rbase,
+	         (u8 __iomem *)pinfo->rx_bd_base - DPRAM_BASE);
+	out_be16(&pinfo->smcup->smc_tbase,
+	         (u8 __iomem *)pinfo->tx_bd_base - DPRAM_BASE);
 
 /*
  *  In case SMC1 is being relocated...
  */
 #if defined (CONFIG_I2C_SPI_SMC1_UCODE_PATCH)
-	up->smc_rbptr = pinfo->smcup->smc_rbase;
-	up->smc_tbptr = pinfo->smcup->smc_tbase;
-	up->smc_rstate = 0;
-	up->smc_tstate = 0;
-	up->smc_brkcr = 1;              /* number of break chars */
-	up->smc_brkec = 0;
+	out_be16(&up->smc_rbptr, in_be16(&pinfo->smcup->smc_rbase));
+	out_be16(&up->smc_tbptr, in_be16(&pinfo->smcup->smc_tbase));
+	out_be32(&up->smc_rstate, 0);
+	out_be32(&up->smc_tstate, 0);
+	out_be16(&up->smc_brkcr, 1);              /* number of break chars */
+	out_be16(&up->smc_brkec, 0);
 #endif
 
 	/* Set up the uart parameters in the
@@ -834,24 +840,24 @@ static void cpm_uart_init_smc(struct uart_cpm_port *pinfo)
 	cpm_set_smc_fcr(up);
 
 	/* Using idle charater time requires some additional tuning.  */
-	up->smc_mrblr = pinfo->rx_fifosize;
-	up->smc_maxidl = pinfo->rx_fifosize;
-	up->smc_brklen = 0;
-	up->smc_brkec = 0;
-	up->smc_brkcr = 1;
+	out_be16(&up->smc_mrblr, pinfo->rx_fifosize);
+	out_be16(&up->smc_maxidl, pinfo->rx_fifosize);
+	out_be16(&up->smc_brklen, 0);
+	out_be16(&up->smc_brkec, 0);
+	out_be16(&up->smc_brkcr, 1);
 
-	cpm_line_cr_cmd(line, CPM_CR_INIT_TRX);
+	cpm_line_cr_cmd(pinfo, CPM_CR_INIT_TRX);
 
 	/* Set UART mode, 8 bit, no parity, one stop.
 	 * Enable receive and transmit.
 	 */
-	sp->smc_smcmr = smcr_mk_clen(9) | SMCMR_SM_UART;
+	out_be16(&sp->smc_smcmr, smcr_mk_clen(9) | SMCMR_SM_UART);
 
 	/* Enable only rx interrupts clear all pending events. */
-	sp->smc_smcm = 0;
-	sp->smc_smce = 0xff;
+	out_8(&sp->smc_smcm, 0);
+	out_8(&sp->smc_smce, 0xff);
 
-	sp->smc_smcmr |= (SMCMR_REN | SMCMR_TEN);
+	setbits16(&sp->smc_smcmr, SMCMR_REN | SMCMR_TEN);
 }
 
 /*
@@ -869,11 +875,11 @@ static int cpm_uart_request_port(struct uart_port *port)
 		return 0;
 
 	if (IS_SMC(pinfo)) {
-		pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
-		pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
+		clrbits8(&pinfo->smcp->smc_smcm, SMCM_RX | SMCM_TX);
+		clrbits16(&pinfo->smcp->smc_smcmr, SMCMR_REN | SMCMR_TEN);
 	} else {
-		pinfo->sccp->scc_sccm &= ~(UART_SCCM_TX | UART_SCCM_RX);
-		pinfo->sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+		clrbits16(&pinfo->sccp->scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
+		clrbits32(&pinfo->sccp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
 	}
 
 	ret = cpm_uart_allocbuf(pinfo, 0);
@@ -929,6 +935,86 @@ static struct uart_ops cpm_uart_pops = {
 	.verify_port	= cpm_uart_verify_port,
 };
 
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+struct uart_cpm_port cpm_uart_ports[UART_NR];
+
+static int cpm_uart_init_port(struct device_node *np,
+                              struct uart_cpm_port *pinfo)
+{
+	const u32 *data;
+	void __iomem *mem, *pram;
+	int len;
+	int ret;
+
+	data = of_get_property(np, "fsl,cpm-brg", &len);
+	if (!data || len != 4) {
+		printk(KERN_ERR "CPM UART %s has no/invalid "
+		                "fsl,cpm-brg property.\n", np->name);
+		return -EINVAL;
+	}
+	pinfo->brg = *data;
+
+	data = of_get_property(np, "fsl,cpm-command", &len);
+	if (!data || len != 4) {
+		printk(KERN_ERR "CPM UART %s has no/invalid "
+		                "fsl,cpm-command property.\n", np->name);
+		return -EINVAL;
+	}
+	pinfo->command = *data;
+
+	mem = of_iomap(np, 0);
+	if (!mem)
+		return -ENOMEM;
+
+	pram = of_iomap(np, 1);
+	if (!pram) {
+		ret = -ENOMEM;
+		goto out_mem;
+	}
+
+	if (of_device_is_compatible(np, "fsl,cpm1-scc-uart") ||
+	    of_device_is_compatible(np, "fsl,cpm2-scc-uart")) {
+		pinfo->sccp = mem;
+		pinfo->sccup = pram;
+	} else if (of_device_is_compatible(np, "fsl,cpm1-smc-uart") ||
+	           of_device_is_compatible(np, "fsl,cpm2-smc-uart")) {
+		pinfo->flags |= FLAG_SMC;
+		pinfo->smcp = mem;
+		pinfo->smcup = pram;
+	} else {
+		ret = -ENODEV;
+		goto out_pram;
+	}
+
+	pinfo->tx_nrfifos = TX_NUM_FIFO;
+	pinfo->tx_fifosize = TX_BUF_SIZE;
+	pinfo->rx_nrfifos = RX_NUM_FIFO;
+	pinfo->rx_fifosize = RX_BUF_SIZE;
+
+	pinfo->port.uartclk = ppc_proc_freq;
+	pinfo->port.mapbase = (unsigned long)mem;
+	pinfo->port.type = PORT_CPM;
+	pinfo->port.ops = &cpm_uart_pops,
+	pinfo->port.iotype = UPIO_MEM;
+	spin_lock_init(&pinfo->port.lock);
+
+	pinfo->port.irq = of_irq_to_resource(np, 0, NULL);
+	if (pinfo->port.irq == NO_IRQ) {
+		ret = -EINVAL;
+		goto out_pram;
+	}
+
+	return cpm_uart_request_port(&pinfo->port);
+
+out_pram:
+	iounmap(pram);
+out_mem:
+	iounmap(mem);
+	return ret;
+}
+
+#else
+
 struct uart_cpm_port cpm_uart_ports[UART_NR] = {
 	[UART_SMC1] = {
 		.port = {
@@ -1072,6 +1158,7 @@ int cpm_uart_drv_get_platform_data(struct platform_device *pdev, int is_con)
 
 	return 0;
 }
+#endif
 
 #ifdef CONFIG_SERIAL_CPM_CONSOLE
 /*
@@ -1083,11 +1170,15 @@ int cpm_uart_drv_get_platform_data(struct platform_device *pdev, int is_con)
 static void cpm_uart_console_write(struct console *co, const char *s,
 				   u_int count)
 {
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	struct uart_cpm_port *pinfo = &cpm_uart_ports[co->index];
+#else
 	struct uart_cpm_port *pinfo =
 	    &cpm_uart_ports[cpm_uart_port_map[co->index]];
+#endif
 	unsigned int i;
-	volatile cbd_t *bdp, *bdbase;
-	volatile unsigned char *cp;
+	cbd_t __iomem *bdp, *bdbase;
+	unsigned char *cp;
 
 	/* Get the address of the host memory buffer.
 	 */
@@ -1105,37 +1196,36 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 		 * Ready indicates output is ready, and xmt is doing
 		 * that, not that it is ready for us to send.
 		 */
-		while ((bdp->cbd_sc & BD_SC_READY) != 0)
+		while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
 			;
 
 		/* Send the character out.
 		 * If the buffer address is in the CPM DPRAM, don't
 		 * convert it.
 		 */
-		cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
-
+		cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
 		*cp = *s;
 
-		bdp->cbd_datlen = 1;
-		bdp->cbd_sc |= BD_SC_READY;
+		out_be16(&bdp->cbd_datlen, 1);
+		setbits16(&bdp->cbd_sc, BD_SC_READY);
 
-		if (bdp->cbd_sc & BD_SC_WRAP)
+		if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
 			bdp = bdbase;
 		else
 			bdp++;
 
 		/* if a LF, also do CR... */
 		if (*s == 10) {
-			while ((bdp->cbd_sc & BD_SC_READY) != 0)
+			while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
 				;
 
-			cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
-
+			cp = cpm2cpu_addr(in_be32(&bdp->cbd_bufaddr), pinfo);
 			*cp = 13;
-			bdp->cbd_datlen = 1;
-			bdp->cbd_sc |= BD_SC_READY;
 
-			if (bdp->cbd_sc & BD_SC_WRAP)
+			out_be16(&bdp->cbd_datlen, 1);
+			setbits16(&bdp->cbd_sc, BD_SC_READY);
+
+			if (in_be16(&bdp->cbd_sc) & BD_SC_WRAP)
 				bdp = bdbase;
 			else
 				bdp++;
@@ -1146,22 +1236,56 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 	 * Finally, Wait for transmitter & holding register to empty
 	 *  and restore the IER
 	 */
-	while ((bdp->cbd_sc & BD_SC_READY) != 0)
+	while ((in_be16(&bdp->cbd_sc) & BD_SC_READY) != 0)
 		;
 
-	pinfo->tx_cur = (volatile cbd_t *) bdp;
+	pinfo->tx_cur = bdp;
 }
 
 
 static int __init cpm_uart_console_setup(struct console *co, char *options)
 {
-	struct uart_port *port;
-	struct uart_cpm_port *pinfo;
 	int baud = 38400;
 	int bits = 8;
 	int parity = 'n';
 	int flow = 'n';
 	int ret;
+	struct uart_cpm_port *pinfo;
+	struct uart_port *port;
+
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+	struct device_node *np = NULL;
+	int i = 0;
+
+	if (co->index >= UART_NR) {
+		printk(KERN_ERR "cpm_uart: console index %d too high\n",
+		       co->index);
+		return -ENODEV;
+	}
+
+	do {
+		np = of_find_node_by_type(np, "serial");
+		if (!np)
+			return -ENODEV;
+
+		if (!of_device_is_compatible(np, "fsl,cpm1-smc-uart") &&
+		    !of_device_is_compatible(np, "fsl,cpm1-scc-uart") &&
+		    !of_device_is_compatible(np, "fsl,cpm2-smc-uart") &&
+		    !of_device_is_compatible(np, "fsl,cpm2-scc-uart"))
+			i--;
+	} while (i++ != co->index);
+
+	pinfo = &cpm_uart_ports[co->index];
+
+	pinfo->flags |= FLAG_CONSOLE;
+	port = &pinfo->port;
+
+	ret = cpm_uart_init_port(np, pinfo);
+	of_node_put(np);
+	if (ret)
+		return ret;
+
+#else
 
 	struct fs_uart_platform_info *pdata;
 	struct platform_device* pdev = early_uart_get_pdev(co->index);
@@ -1188,6 +1312,7 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
 	}
 
 	pinfo->flags |= FLAG_CONSOLE;
+#endif
 
 	if (options) {
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -1196,12 +1321,18 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
 			baud = 9600;
 	}
 
+#ifdef CONFIG_PPC_EARLY_DEBUG_CPM
+	udbg_putc = NULL;
+#endif
+
+	cpm_line_cr_cmd(pinfo, CPM_CR_STOP_TX);
+
 	if (IS_SMC(pinfo)) {
-		pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
-		pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
+		clrbits8(&pinfo->smcp->smc_smcm, SMCM_RX | SMCM_TX);
+		clrbits16(&pinfo->smcp->smc_smcmr, SMCMR_REN | SMCMR_TEN);
 	} else {
-		pinfo->sccp->scc_sccm &= ~(UART_SCCM_TX | UART_SCCM_RX);
-		pinfo->sccp->scc_gsmrl &= ~(SCC_GSMRL_ENR | SCC_GSMRL_ENT);
+		clrbits16(&pinfo->sccp->scc_sccm, UART_SCCM_TX | UART_SCCM_RX);
+		clrbits32(&pinfo->sccp->scc_gsmrl, SCC_GSMRL_ENR | SCC_GSMRL_ENT);
 	}
 
 	ret = cpm_uart_allocbuf(pinfo, 1);
@@ -1217,6 +1348,7 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
 		cpm_uart_init_scc(pinfo);
 
 	uart_set_options(port, co, baud, parity, bits, flow);
+	cpm_line_cr_cmd(pinfo, CPM_CR_RESTART_TX);
 
 	return 0;
 }
@@ -1232,7 +1364,7 @@ static struct console cpm_scc_uart_console = {
 	.data		= &cpm_reg,
 };
 
-int __init cpm_uart_console_init(void)
+static int __init cpm_uart_console_init(void)
 {
 	register_console(&cpm_scc_uart_console);
 	return 0;
@@ -1252,7 +1384,81 @@ static struct uart_driver cpm_reg = {
 	.major		= SERIAL_CPM_MAJOR,
 	.minor		= SERIAL_CPM_MINOR,
 	.cons		= CPM_UART_CONSOLE,
+	.nr		= UART_NR,
 };
+
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+static int probe_index;
+
+static int __devinit cpm_uart_probe(struct of_device *ofdev,
+                                    const struct of_device_id *match)
+{
+	int index = probe_index++;
+	struct uart_cpm_port *pinfo = &cpm_uart_ports[index];
+	int ret;
+
+	pinfo->port.line = index;
+
+	if (index >= UART_NR)
+		return -ENODEV;
+
+	dev_set_drvdata(&ofdev->dev, pinfo);
+
+	ret = cpm_uart_init_port(ofdev->node, pinfo);
+	if (ret)
+		return ret;
+
+	return uart_add_one_port(&cpm_reg, &pinfo->port);
+}
+
+static int __devexit cpm_uart_remove(struct of_device *ofdev)
+{
+	struct uart_cpm_port *pinfo = dev_get_drvdata(&ofdev->dev);
+	return uart_remove_one_port(&cpm_reg, &pinfo->port);
+}
+
+static struct of_device_id cpm_uart_match[] = {
+	{
+		.compatible = "fsl,cpm1-smc-uart",
+	},
+	{
+		.compatible = "fsl,cpm1-scc-uart",
+	},
+	{
+		.compatible = "fsl,cpm2-smc-uart",
+	},
+	{
+		.compatible = "fsl,cpm2-scc-uart",
+	},
+	{}
+};
+
+static struct of_platform_driver cpm_uart_driver = {
+	.name = "cpm_uart",
+	.match_table = cpm_uart_match,
+	.probe = cpm_uart_probe,
+	.remove = cpm_uart_remove,
+ };
+
+static int __init cpm_uart_init(void)
+{
+	int ret = uart_register_driver(&cpm_reg);
+	if (ret)
+		return ret;
+
+	ret = of_register_platform_driver(&cpm_uart_driver);
+	if (ret)
+		uart_unregister_driver(&cpm_reg);
+
+	return ret;
+}
+
+static void __exit cpm_uart_exit(void)
+{
+	of_unregister_platform_driver(&cpm_uart_driver);
+	uart_unregister_driver(&cpm_reg);
+}
+#else
 static int cpm_uart_drv_probe(struct device *dev)
 {
 	struct platform_device  *pdev = to_platform_device(dev);
@@ -1380,6 +1586,7 @@ static void __exit cpm_uart_exit(void)
 	driver_unregister(&cpm_smc_uart_driver);
 	uart_unregister_driver(&cpm_reg);
 }
+#endif
 
 module_init(cpm_uart_init);
 module_exit(cpm_uart_exit);
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index 8c6324e..52fb044 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -49,9 +49,20 @@
 
 /**************************************************************/
 
-void cpm_line_cr_cmd(int line, int cmd)
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
+{
+	u16 __iomem *cpcr = &cpmp->cp_cpcr;
+
+	out_be16(cpcr, port->command | (cmd << 8) | CPM_CR_FLG);
+	while (in_be16(cpcr) & CPM_CR_FLG)
+		;
+}
+#else
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
 {
 	ushort val;
+	int line = port - cpm_uart_ports;
 	volatile cpm8xx_t *cp = cpmp;
 
 	switch (line) {
@@ -114,6 +125,7 @@ void scc4_lineif(struct uart_cpm_port *pinfo)
 	/* XXX SCC4: insert port configuration here */
 	pinfo->brg = 4;
 }
+#endif
 
 /*
  * Allocate DP-Ram and memory buffers. We need to allocate a transmit and
@@ -167,7 +179,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 	pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
 						       * pinfo->rx_fifosize);
 
-	pinfo->rx_bd_base = (volatile cbd_t *)dp_mem;
+	pinfo->rx_bd_base = (cbd_t __iomem __force *)dp_mem;
 	pinfo->tx_bd_base = pinfo->rx_bd_base + pinfo->rx_nrfifos;
 
 	return 0;
@@ -184,6 +196,7 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 	cpm_dpfree(pinfo->dp_addr);
 }
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 /* Setup any dynamic params in the uart desc */
 int cpm_uart_init_portdesc(void)
 {
@@ -279,3 +292,4 @@ int cpm_uart_init_portdesc(void)
 #endif
 	return 0;
 }
+#endif
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.h b/drivers/serial/cpm_uart/cpm_uart_cpm1.h
index 2a64778..9b5465f 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.h
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.h
@@ -13,30 +13,32 @@
 #include <asm/commproc.h>
 
 /* defines for IRQs */
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 #define SMC1_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SMC1)
 #define SMC2_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SMC2)
 #define SCC1_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC1)
 #define SCC2_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC2)
 #define SCC3_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC3)
 #define SCC4_IRQ	(CPM_IRQ_OFFSET + CPMVEC_SCC4)
+#endif
 
 static inline void cpm_set_brg(int brg, int baud)
 {
 	cpm_setbrg(brg, baud);
 }
 
-static inline void cpm_set_scc_fcr(volatile scc_uart_t * sup)
+static inline void cpm_set_scc_fcr(scc_uart_t __iomem * sup)
 {
-	sup->scc_genscc.scc_rfcr = SMC_EB;
-	sup->scc_genscc.scc_tfcr = SMC_EB;
+	out_8(&sup->scc_genscc.scc_rfcr, SMC_EB);
+	out_8(&sup->scc_genscc.scc_tfcr, SMC_EB);
 }
 
-static inline void cpm_set_smc_fcr(volatile smc_uart_t * up)
+static inline void cpm_set_smc_fcr(smc_uart_t __iomem * up)
 {
-	up->smc_rfcr = SMC_EB;
-	up->smc_tfcr = SMC_EB;
+	out_8(&up->smc_rfcr, SMC_EB);
+	out_8(&up->smc_tfcr, SMC_EB);
 }
 
-#define DPRAM_BASE	((unsigned char *)cpm_dpram_addr(0))
+#define DPRAM_BASE	((u8 __iomem __force *)cpm_dpram_addr(0))
 
 #endif
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index 7b61d80..882dbc1 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -49,9 +49,22 @@
 
 /**************************************************************/
 
-void cpm_line_cr_cmd(int line, int cmd)
+#ifdef CONFIG_PPC_CPM_NEW_BINDING
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
+{
+	cpm_cpm2_t __iomem *cp = cpm2_map(im_cpm);
+
+	out_be32(&cp->cp_cpcr, port->command | cmd | CPM_CR_FLG);
+	while (in_be32(&cp->cp_cpcr) & CPM_CR_FLG)
+		;
+
+	cpm2_unmap(cp);
+}
+#else
+void cpm_line_cr_cmd(struct uart_cpm_port *port, int cmd)
 {
 	ulong val;
+	int line = port - cpm_uart_ports;
 	volatile cpm_cpm2_t *cp = cpm2_map(im_cpm);
 
 
@@ -211,6 +224,7 @@ void scc4_lineif(struct uart_cpm_port *pinfo)
 	cpm2_unmap(cpmux);
 	cpm2_unmap(io);
 }
+#endif
 
 /*
  * Allocate DP-Ram and memory buffers. We need to allocate a transmit and 
@@ -221,7 +235,7 @@ void scc4_lineif(struct uart_cpm_port *pinfo)
 int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 {
 	int dpmemsz, memsz;
-	u8 *dp_mem;
+	u8 __iomem *dp_mem;
 	unsigned long dp_offset;
 	u8 *mem_addr;
 	dma_addr_t dma_addr = 0;
@@ -264,7 +278,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 	pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
 						       * pinfo->rx_fifosize);
 
-	pinfo->rx_bd_base = (volatile cbd_t *)dp_mem;
+	pinfo->rx_bd_base = (cbd_t __iomem *)dp_mem;
 	pinfo->tx_bd_base = pinfo->rx_bd_base + pinfo->rx_nrfifos;
 
 	return 0;
@@ -275,12 +289,13 @@ void cpm_uart_freebuf(struct uart_cpm_port *pinfo)
 	dma_free_coherent(NULL, L1_CACHE_ALIGN(pinfo->rx_nrfifos *
 					       pinfo->rx_fifosize) +
 			  L1_CACHE_ALIGN(pinfo->tx_nrfifos *
-					 pinfo->tx_fifosize), pinfo->mem_addr,
+					 pinfo->tx_fifosize), (void __force *)pinfo->mem_addr,
 			  pinfo->dma_addr);
 
 	cpm_dpfree(pinfo->dp_addr);
 }
 
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 /* Setup any dynamic params in the uart desc */
 int cpm_uart_init_portdesc(void)
 {
@@ -386,3 +401,4 @@ int cpm_uart_init_portdesc(void)
 
 	return 0;
 }
+#endif
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.h b/drivers/serial/cpm_uart/cpm_uart_cpm2.h
index 1b3219f..40006a7 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.h
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.h
@@ -13,30 +13,32 @@
 #include <asm/cpm2.h>
 
 /* defines for IRQs */
+#ifndef CONFIG_PPC_CPM_NEW_BINDING
 #define SMC1_IRQ	SIU_INT_SMC1
 #define SMC2_IRQ	SIU_INT_SMC2
 #define SCC1_IRQ	SIU_INT_SCC1
 #define SCC2_IRQ	SIU_INT_SCC2
 #define SCC3_IRQ	SIU_INT_SCC3
 #define SCC4_IRQ	SIU_INT_SCC4
+#endif
 
 static inline void cpm_set_brg(int brg, int baud)
 {
 	cpm_setbrg(brg, baud);
 }
 
-static inline void cpm_set_scc_fcr(volatile scc_uart_t * sup)
+static inline void cpm_set_scc_fcr(scc_uart_t __iomem *sup)
 {
-	sup->scc_genscc.scc_rfcr = CPMFCR_GBL | CPMFCR_EB;
-	sup->scc_genscc.scc_tfcr = CPMFCR_GBL | CPMFCR_EB;
+	out_8(&sup->scc_genscc.scc_rfcr, CPMFCR_GBL | CPMFCR_EB);
+	out_8(&sup->scc_genscc.scc_tfcr, CPMFCR_GBL | CPMFCR_EB);
 }
 
-static inline void cpm_set_smc_fcr(volatile smc_uart_t * up)
+static inline void cpm_set_smc_fcr(smc_uart_t __iomem *up)
 {
-	up->smc_rfcr = CPMFCR_GBL | CPMFCR_EB;
-	up->smc_tfcr = CPMFCR_GBL | CPMFCR_EB;
+	out_8(&up->smc_rfcr, CPMFCR_GBL | CPMFCR_EB);
+	out_8(&up->smc_tfcr, CPMFCR_GBL | CPMFCR_EB);
 }
 
-#define DPRAM_BASE	((unsigned char *)cpm_dpram_addr(0))
+#define DPRAM_BASE	((u8 __iomem __force *)cpm_dpram_addr(0))
 
 #endif
diff --git a/drivers/serial/mpc52xx_uart.c b/drivers/serial/mpc52xx_uart.c
index 35f8b86..035cca0 100644
--- a/drivers/serial/mpc52xx_uart.c
+++ b/drivers/serial/mpc52xx_uart.c
@@ -1051,7 +1051,7 @@ mpc52xx_uart_of_assign(struct device_node *np, int idx)
 	/* If the slot is already occupied, then swap slots */
 	if (mpc52xx_uart_nodes[idx] && (free_idx != -1))
 		mpc52xx_uart_nodes[free_idx] = mpc52xx_uart_nodes[idx];
-	mpc52xx_uart_nodes[i] = np;
+	mpc52xx_uart_nodes[idx] = np;
 }
 
 static void
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index 0fa9f67..794bd0f 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -88,6 +88,16 @@ MODULE_LICENSE("GPL");
 
 #define PWRDBG(fmt, arg...)	printk(KERN_DEBUG fmt , ## arg)
 
+#ifdef CONFIG_SERIAL_PMACZILOG_TTYS
+#define PMACZILOG_MAJOR		TTY_MAJOR
+#define PMACZILOG_MINOR		64
+#define PMACZILOG_NAME		"ttyS"
+#else
+#define PMACZILOG_MAJOR		204
+#define PMACZILOG_MINOR		192
+#define PMACZILOG_NAME		"ttyPZ"
+#endif
+
 
 /*
  * For the sake of early serial console, we can do a pre-probe
@@ -99,9 +109,10 @@ static DEFINE_MUTEX(pmz_irq_mutex);
 
 static struct uart_driver pmz_uart_reg = {
 	.owner		=	THIS_MODULE,
-	.driver_name	=	"ttyS",
-	.dev_name	=	"ttyS",
-	.major		=	TTY_MAJOR,
+	.driver_name	=	PMACZILOG_NAME,
+	.dev_name	=	PMACZILOG_NAME,
+	.major		=	PMACZILOG_MAJOR,
+	.minor		=	PMACZILOG_MINOR,
 };
 
 
@@ -1587,7 +1598,7 @@ static int pmz_suspend(struct macio_dev *mdev, pm_message_t pm_state)
 	if (pm_state.event == mdev->ofdev.dev.power.power_state.event)
 		return 0;
 
-	pmz_debug("suspend, switching to state %d\n", pm_state);
+	pmz_debug("suspend, switching to state %d\n", pm_state.event);
 
 	state = pmz_uart_reg.state + uap->port.line;
 
@@ -1778,7 +1789,7 @@ static void pmz_console_write(struct console *con, const char *s, unsigned int c
 static int __init pmz_console_setup(struct console *co, char *options);
 
 static struct console pmz_console = {
-	.name	=	"ttyS",
+	.name	=	PMACZILOG_NAME,
 	.write	=	pmz_console_write,
 	.device	=	uart_console_device,
 	.setup	=	pmz_console_setup,
@@ -1802,7 +1813,6 @@ static int __init pmz_register(void)
 	
 	pmz_uart_reg.nr = pmz_ports_count;
 	pmz_uart_reg.cons = PMACZILOG_CONSOLE;
-	pmz_uart_reg.minor = 64;
 
 	/*
 	 * Register this driver with the serial core
diff --git a/drivers/serial/uartlite.c b/drivers/serial/uartlite.c
index f5051cf..dfef83f 100644
--- a/drivers/serial/uartlite.c
+++ b/drivers/serial/uartlite.c
@@ -1,7 +1,8 @@
 /*
  * uartlite.c: Serial driver for Xilinx uartlite serial controller
  *
- * Peter Korsgaard <jacmet@sunsite.dk>
+ * Copyright (C) 2006 Peter Korsgaard <jacmet@sunsite.dk>
+ * Copyright (C) 2007 Secret Lab Technologies Ltd.
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2.  This program is licensed "as is" without any warranty of any
@@ -17,14 +18,23 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <asm/io.h>
+#if defined(CONFIG_OF)
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
+#endif
 
+#define ULITE_NAME		"ttyUL"
 #define ULITE_MAJOR		204
 #define ULITE_MINOR		187
 #define ULITE_NR_UARTS		4
 
-/* For register details see datasheet:
-   http://www.xilinx.com/bvdocs/ipcenter/data_sheet/opb_uartlite.pdf
-*/
+/* ---------------------------------------------------------------------
+ * Register definitions
+ *
+ * For register details see datasheet:
+ * http://www.xilinx.com/bvdocs/ipcenter/data_sheet/opb_uartlite.pdf
+ */
+
 #define ULITE_RX		0x00
 #define ULITE_TX		0x04
 #define ULITE_STATUS		0x08
@@ -46,7 +56,11 @@
 #define ULITE_CONTROL_IE	0x10
 
 
-static struct uart_port ports[ULITE_NR_UARTS];
+static struct uart_port ulite_ports[ULITE_NR_UARTS];
+
+/* ---------------------------------------------------------------------
+ * Core UART driver operations
+ */
 
 static int ulite_receive(struct uart_port *port, int stat)
 {
@@ -307,6 +321,10 @@ static struct uart_ops ulite_ops = {
 	.verify_port	= ulite_verify_port
 };
 
+/* ---------------------------------------------------------------------
+ * Console driver operations
+ */
+
 #ifdef CONFIG_SERIAL_UARTLITE_CONSOLE
 static void ulite_console_wait_tx(struct uart_port *port)
 {
@@ -329,7 +347,7 @@ static void ulite_console_putchar(struct uart_port *port, int ch)
 static void ulite_console_write(struct console *co, const char *s,
 				unsigned int count)
 {
-	struct uart_port *port = &ports[co->index];
+	struct uart_port *port = &ulite_ports[co->index];
 	unsigned long flags;
 	unsigned int ier;
 	int locked = 1;
@@ -355,6 +373,31 @@ static void ulite_console_write(struct console *co, const char *s,
 		spin_unlock_irqrestore(&port->lock, flags);
 }
 
+#if defined(CONFIG_OF)
+static inline void __init ulite_console_of_find_device(int id)
+{
+	struct device_node *np;
+	struct resource res;
+	const unsigned int *of_id;
+	int rc;
+
+	for_each_compatible_node(np, NULL, "xilinx,uartlite") {
+		of_id = of_get_property(np, "port-number", NULL);
+		if ((!of_id) || (*of_id != id))
+			continue;
+
+		rc = of_address_to_resource(np, 0, &res);
+		if (rc)
+			continue;
+
+		ulite_ports[id].mapbase = res.start;
+		return;
+	}
+}
+#else /* CONFIG_OF */
+static inline void __init ulite_console_of_find_device(int id) { /* do nothing */ }
+#endif /* CONFIG_OF */
+
 static int __init ulite_console_setup(struct console *co, char *options)
 {
 	struct uart_port *port;
@@ -366,11 +409,23 @@ static int __init ulite_console_setup(struct console *co, char *options)
 	if (co->index < 0 || co->index >= ULITE_NR_UARTS)
 		return -EINVAL;
 
-	port = &ports[co->index];
+	port = &ulite_ports[co->index];
 
-	/* not initialized yet? */
-	if (!port->membase)
+	/* Check if it is an OF device */
+	if (!port->mapbase)
+		ulite_console_of_find_device(co->index);
+
+	/* Do we have a device now? */
+	if (!port->mapbase) {
+		pr_debug("console on ttyUL%i not present\n", co->index);
 		return -ENODEV;
+	}
+
+	/* not initialized yet? */
+	if (!port->membase) {
+		if (ulite_request_port(port))
+			return -ENODEV;
+	}
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -381,7 +436,7 @@ static int __init ulite_console_setup(struct console *co, char *options)
 static struct uart_driver ulite_uart_driver;
 
 static struct console ulite_console = {
-	.name	= "ttyUL",
+	.name	= ULITE_NAME,
 	.write	= ulite_console_write,
 	.device	= uart_console_device,
 	.setup	= ulite_console_setup,
@@ -403,7 +458,7 @@ console_initcall(ulite_console_init);
 static struct uart_driver ulite_uart_driver = {
 	.owner		= THIS_MODULE,
 	.driver_name	= "uartlite",
-	.dev_name	= "ttyUL",
+	.dev_name	= ULITE_NAME,
 	.major		= ULITE_MAJOR,
 	.minor		= ULITE_MINOR,
 	.nr		= ULITE_NR_UARTS,
@@ -412,59 +467,111 @@ static struct uart_driver ulite_uart_driver = {
 #endif
 };
 
-static int __devinit ulite_probe(struct platform_device *pdev)
+/* ---------------------------------------------------------------------
+ * Port assignment functions (mapping devices to uart_port structures)
+ */
+
+/** ulite_assign: register a uartlite device with the driver
+ *
+ * @dev: pointer to device structure
+ * @id: requested id number.  Pass -1 for automatic port assignment
+ * @base: base address of uartlite registers
+ * @irq: irq number for uartlite
+ *
+ * Returns: 0 on success, <0 otherwise
+ */
+static int __devinit ulite_assign(struct device *dev, int id, u32 base, int irq)
 {
-	struct resource *res, *res2;
 	struct uart_port *port;
+	int rc;
 
-	if (pdev->id < 0 || pdev->id >= ULITE_NR_UARTS)
+	/* if id = -1; then scan for a free id and use that */
+	if (id < 0) {
+		for (id = 0; id < ULITE_NR_UARTS; id++)
+			if (ulite_ports[id].mapbase == 0)
+				break;
+	}
+	if (id < 0 || id >= ULITE_NR_UARTS) {
+		dev_err(dev, "%s%i too large\n", ULITE_NAME, id);
 		return -EINVAL;
+	}
 
-	if (ports[pdev->id].membase)
+	if ((ulite_ports[id].mapbase) && (ulite_ports[id].mapbase != base)) {
+		dev_err(dev, "cannot assign to %s%i; it is already in use\n",
+			ULITE_NAME, id);
 		return -EBUSY;
+	}
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res)
-		return -ENODEV;
+	port = &ulite_ports[id];
 
-	res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (!res2)
-		return -ENODEV;
+	spin_lock_init(&port->lock);
+	port->fifosize = 16;
+	port->regshift = 2;
+	port->iotype = UPIO_MEM;
+	port->iobase = 1; /* mark port in use */
+	port->mapbase = base;
+	port->membase = NULL;
+	port->ops = &ulite_ops;
+	port->irq = irq;
+	port->flags = UPF_BOOT_AUTOCONF;
+	port->dev = dev;
+	port->type = PORT_UNKNOWN;
+	port->line = id;
+
+	dev_set_drvdata(dev, port);
+
+	/* Register the port */
+	rc = uart_add_one_port(&ulite_uart_driver, port);
+	if (rc) {
+		dev_err(dev, "uart_add_one_port() failed; err=%i\n", rc);
+		port->mapbase = 0;
+		dev_set_drvdata(dev, NULL);
+		return rc;
+	}
 
-	port = &ports[pdev->id];
+	return 0;
+}
 
-	port->fifosize	= 16;
-	port->regshift	= 2;
-	port->iotype	= UPIO_MEM;
-	port->iobase	= 1; /* mark port in use */
-	port->mapbase	= res->start;
-	port->membase	= NULL;
-	port->ops	= &ulite_ops;
-	port->irq	= res2->start;
-	port->flags	= UPF_BOOT_AUTOCONF;
-	port->dev	= &pdev->dev;
-	port->type	= PORT_UNKNOWN;
-	port->line	= pdev->id;
+/** ulite_release: register a uartlite device with the driver
+ *
+ * @dev: pointer to device structure
+ */
+static int __devinit ulite_release(struct device *dev)
+{
+	struct uart_port *port = dev_get_drvdata(dev);
+	int rc = 0;
 
-	uart_add_one_port(&ulite_uart_driver, port);
-	platform_set_drvdata(pdev, port);
+	if (port) {
+		rc = uart_remove_one_port(&ulite_uart_driver, port);
+		dev_set_drvdata(dev, NULL);
+		port->mapbase = 0;
+	}
 
-	return 0;
+	return rc;
 }
 
-static int ulite_remove(struct platform_device *pdev)
+/* ---------------------------------------------------------------------
+ * Platform bus binding
+ */
+
+static int __devinit ulite_probe(struct platform_device *pdev)
 {
-	struct uart_port *port = platform_get_drvdata(pdev);
+	struct resource *res, *res2;
 
-	platform_set_drvdata(pdev, NULL);
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENODEV;
 
-	if (port)
-		uart_remove_one_port(&ulite_uart_driver, port);
+	res2 = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (!res2)
+		return -ENODEV;
 
-	/* mark port as free */
-	port->membase = NULL;
+	return ulite_assign(&pdev->dev, pdev->id, res->start, res2->start);
+}
 
-	return 0;
+static int ulite_remove(struct platform_device *pdev)
+{
+	return ulite_release(&pdev->dev);
 }
 
 static struct platform_driver ulite_platform_driver = {
@@ -476,24 +583,109 @@ static struct platform_driver ulite_platform_driver = {
 		   },
 };
 
+/* ---------------------------------------------------------------------
+ * OF bus bindings
+ */
+#if defined(CONFIG_OF)
+static int __devinit
+ulite_of_probe(struct of_device *op, const struct of_device_id *match)
+{
+	struct resource res;
+	const unsigned int *id;
+	int irq, rc;
+
+	dev_dbg(&op->dev, "%s(%p, %p)\n", __FUNCTION__, op, match);
+
+	rc = of_address_to_resource(op->node, 0, &res);
+	if (rc) {
+		dev_err(&op->dev, "invalid address\n");
+		return rc;
+	}
+
+	irq = irq_of_parse_and_map(op->node, 0);
+
+	id = of_get_property(op->node, "port-number", NULL);
+
+	return ulite_assign(&op->dev, id ? *id : -1, res.start+3, irq);
+}
+
+static int __devexit ulite_of_remove(struct of_device *op)
+{
+	return ulite_release(&op->dev);
+}
+
+/* Match table for of_platform binding */
+static struct of_device_id __devinit ulite_of_match[] = {
+	{ .type = "serial", .compatible = "xilinx,uartlite", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, ulite_of_match);
+
+static struct of_platform_driver ulite_of_driver = {
+	.owner = THIS_MODULE,
+	.name = "uartlite",
+	.match_table = ulite_of_match,
+	.probe = ulite_of_probe,
+	.remove = __devexit_p(ulite_of_remove),
+	.driver = {
+		.name = "uartlite",
+	},
+};
+
+/* Registration helpers to keep the number of #ifdefs to a minimum */
+static inline int __init ulite_of_register(void)
+{
+	pr_debug("uartlite: calling of_register_platform_driver()\n");
+	return of_register_platform_driver(&ulite_of_driver);
+}
+
+static inline void __exit ulite_of_unregister(void)
+{
+	of_unregister_platform_driver(&ulite_of_driver);
+}
+#else /* CONFIG_OF */
+/* CONFIG_OF not enabled; do nothing helpers */
+static inline int __init ulite_of_register(void) { return 0; }
+static inline void __exit ulite_of_unregister(void) { }
+#endif /* CONFIG_OF */
+
+/* ---------------------------------------------------------------------
+ * Module setup/teardown
+ */
+
 int __init ulite_init(void)
 {
 	int ret;
 
+	pr_debug("uartlite: calling uart_register_driver()\n");
 	ret = uart_register_driver(&ulite_uart_driver);
 	if (ret)
-		return ret;
+		goto err_uart;
 
+	ret = ulite_of_register();
+	if (ret)
+		goto err_of;
+
+	pr_debug("uartlite: calling platform_driver_register()\n");
 	ret = platform_driver_register(&ulite_platform_driver);
 	if (ret)
-		uart_unregister_driver(&ulite_uart_driver);
+		goto err_plat;
 
+	return 0;
+
+err_plat:
+	ulite_of_unregister();
+err_of:
+	uart_unregister_driver(&ulite_uart_driver);
+err_uart:
+	printk(KERN_ERR "registering uartlite driver failed: err=%i", ret);
 	return ret;
 }
 
 void __exit ulite_exit(void)
 {
 	platform_driver_unregister(&ulite_platform_driver);
+	ulite_of_unregister();
 	uart_unregister_driver(&ulite_uart_driver);
 }