Merge ../linux-2.6

10 files changed, 449 insertions, 234 deletions

diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index 674b15c78f68..bbf78aaf9e01 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -362,6 +362,40 @@ serial_out(struct uart_8250_port *up, int offset, int value)
 #define serial_inp(up, offset)		serial_in(up, offset)
 #define serial_outp(up, offset, value)	serial_out(up, offset, value)
 
+/* Uart divisor latch read */
+static inline int _serial_dl_read(struct uart_8250_port *up)
+{
+	return serial_inp(up, UART_DLL) | serial_inp(up, UART_DLM) << 8;
+}
+
+/* Uart divisor latch write */
+static inline void _serial_dl_write(struct uart_8250_port *up, int value)
+{
+	serial_outp(up, UART_DLL, value & 0xff);
+	serial_outp(up, UART_DLM, value >> 8 & 0xff);
+}
+
+#ifdef CONFIG_SERIAL_8250_AU1X00
+/* Au1x00 haven't got a standard divisor latch */
+static int serial_dl_read(struct uart_8250_port *up)
+{
+	if (up->port.iotype == UPIO_AU)
+		return __raw_readl(up->port.membase + 0x28);
+	else
+		return _serial_dl_read(up);
+}
+
+static void serial_dl_write(struct uart_8250_port *up, int value)
+{
+	if (up->port.iotype == UPIO_AU)
+		__raw_writel(value, up->port.membase + 0x28);
+	else
+		_serial_dl_write(up, value);
+}
+#else
+#define serial_dl_read(up) _serial_dl_read(up)
+#define serial_dl_write(up, value) _serial_dl_write(up, value)
+#endif
 
 /*
  * For the 16C950
@@ -494,7 +528,8 @@ static void disable_rsa(struct uart_8250_port *up)
  */
 static int size_fifo(struct uart_8250_port *up)
 {
-	unsigned char old_fcr, old_mcr, old_dll, old_dlm, old_lcr;
+	unsigned char old_fcr, old_mcr, old_lcr;
+	unsigned short old_dl;
 	int count;
 
 	old_lcr = serial_inp(up, UART_LCR);
@@ -505,10 +540,8 @@ static int size_fifo(struct uart_8250_port *up)
 		    UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT);
 	serial_outp(up, UART_MCR, UART_MCR_LOOP);
 	serial_outp(up, UART_LCR, UART_LCR_DLAB);
-	old_dll = serial_inp(up, UART_DLL);
-	old_dlm = serial_inp(up, UART_DLM);
-	serial_outp(up, UART_DLL, 0x01);
-	serial_outp(up, UART_DLM, 0x00);
+	old_dl = serial_dl_read(up);
+	serial_dl_write(up, 0x0001);
 	serial_outp(up, UART_LCR, 0x03);
 	for (count = 0; count < 256; count++)
 		serial_outp(up, UART_TX, count);
@@ -519,8 +552,7 @@ static int size_fifo(struct uart_8250_port *up)
 	serial_outp(up, UART_FCR, old_fcr);
 	serial_outp(up, UART_MCR, old_mcr);
 	serial_outp(up, UART_LCR, UART_LCR_DLAB);
-	serial_outp(up, UART_DLL, old_dll);
-	serial_outp(up, UART_DLM, old_dlm);
+	serial_dl_write(up, old_dl);
 	serial_outp(up, UART_LCR, old_lcr);
 
 	return count;
@@ -750,8 +782,7 @@ static void autoconfig_16550a(struct uart_8250_port *up)
 
 			serial_outp(up, UART_LCR, 0xE0);
 
-			quot = serial_inp(up, UART_DLM) << 8;
-			quot += serial_inp(up, UART_DLL);
+			quot = serial_dl_read(up);
 			quot <<= 3;
 
 			status1 = serial_in(up, 0x04); /* EXCR1 */
@@ -759,8 +790,7 @@ static void autoconfig_16550a(struct uart_8250_port *up)
 			status1 |= 0x10;  /* 1.625 divisor for baud_base --> 921600 */
 			serial_outp(up, 0x04, status1);
 			
-			serial_outp(up, UART_DLL, quot & 0xff);
-			serial_outp(up, UART_DLM, quot >> 8);
+			serial_dl_write(up, quot);
 
 			serial_outp(up, UART_LCR, 0);
 
@@ -1862,8 +1892,7 @@ serial8250_set_termios(struct uart_port *port, struct termios *termios,
 		serial_outp(up, UART_LCR, cval | UART_LCR_DLAB);/* set DLAB */
 	}
 
-	serial_outp(up, UART_DLL, quot & 0xff);		/* LS of divisor */
-	serial_outp(up, UART_DLM, quot >> 8);		/* MS of divisor */
+	serial_dl_write(up, quot);
 
 	/*
 	 * LCR DLAB must be set to enable 64-byte FIFO mode. If the FCR
@@ -1906,6 +1935,9 @@ static int serial8250_request_std_resource(struct uart_8250_port *up)
 	int ret = 0;
 
 	switch (up->port.iotype) {
+	case UPIO_AU:
+		size = 0x100000;
+		/* fall thru */
 	case UPIO_MEM:
 		if (!up->port.mapbase)
 			break;
@@ -1938,6 +1970,9 @@ static void serial8250_release_std_resource(struct uart_8250_port *up)
 	unsigned int size = 8 << up->port.regshift;
 
 	switch (up->port.iotype) {
+	case UPIO_AU:
+		size = 0x100000;
+		/* fall thru */
 	case UPIO_MEM:
 		if (!up->port.mapbase)
 			break;
@@ -2200,10 +2235,17 @@ static void
 serial8250_console_write(struct console *co, const char *s, unsigned int count)
 {
 	struct uart_8250_port *up = &serial8250_ports[co->index];
+	unsigned long flags;
 	unsigned int ier;
+	int locked = 1;
 
 	touch_nmi_watchdog();
 
+	if (oops_in_progress) {
+		locked = spin_trylock_irqsave(&up->port.lock, flags);
+	} else
+		spin_lock_irqsave(&up->port.lock, flags);
+
 	/*
 	 *	First save the IER then disable the interrupts
 	 */
@@ -2221,8 +2263,10 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
 	 *	and restore the IER
 	 */
 	wait_for_xmitr(up, BOTH_EMPTY);
-	up->ier |= UART_IER_THRI;
-	serial_out(up, UART_IER, ier | UART_IER_THRI);
+	serial_out(up, UART_IER, ier);
+
+	if (locked)
+		spin_unlock_irqrestore(&up->port.lock, flags);
 }
 
 static int serial8250_console_setup(struct console *co, char *options)
diff --git a/drivers/serial/8250_au1x00.c b/drivers/serial/8250_au1x00.c
index 3d1bfd07208d..58015fd14be9 100644
--- a/drivers/serial/8250_au1x00.c
+++ b/drivers/serial/8250_au1x00.c
@@ -30,13 +30,12 @@
 	{						\
 		.iobase		= _base,		\
 		.membase	= (void __iomem *)_base,\
-		.mapbase	= _base,		\
+		.mapbase	= CPHYSADDR(_base),	\
 		.irq		= _irq,			\
 		.uartclk	= 0,	/* filled */	\
 		.regshift	= 2,			\
 		.iotype		= UPIO_AU,		\
-		.flags		= UPF_SKIP_TEST | 	\
-				  UPF_IOREMAP,		\
+		.flags		= UPF_SKIP_TEST 	\
 	}
 
 static struct plat_serial8250_port au1x00_data[] = {
diff --git a/drivers/serial/cpm_uart/cpm_uart.h b/drivers/serial/cpm_uart/cpm_uart.h
index 73c8a088c160..3b35cb779539 100644
--- a/drivers/serial/cpm_uart/cpm_uart.h
+++ b/drivers/serial/cpm_uart/cpm_uart.h
@@ -5,11 +5,20 @@
  *
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
  *
+ *  2006 (c) MontaVista Software, Inc.
+ * 	Vitaly Bordug <vbordug@ru.mvista.com>
+ *
+ * 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
+ * kind, whether express or implied.
+ *
  */
 #ifndef CPM_UART_H
 #define CPM_UART_H
 
 #include <linux/config.h>
+#include <linux/platform_device.h>
+#include <linux/fs_uart_pd.h>
 
 #if defined(CONFIG_CPM2)
 #include "cpm_uart_cpm2.h"
@@ -26,14 +35,14 @@
 #define FLAG_SMC	0x00000002
 #define FLAG_CONSOLE	0x00000001
 
-#define UART_SMC1	0
-#define UART_SMC2	1
-#define UART_SCC1	2
-#define UART_SCC2	3
-#define UART_SCC3	4
-#define UART_SCC4	5
+#define UART_SMC1	fsid_smc1_uart
+#define UART_SMC2	fsid_smc2_uart
+#define UART_SCC1	fsid_scc1_uart
+#define UART_SCC2	fsid_scc2_uart
+#define UART_SCC3	fsid_scc3_uart
+#define UART_SCC4	fsid_scc4_uart
 
-#define UART_NR	6
+#define UART_NR		fs_uart_nr
 
 #define RX_NUM_FIFO	4
 #define RX_BUF_SIZE	32
@@ -64,6 +73,7 @@ struct uart_cpm_port {
 	uint			 dp_addr;
 	void			*mem_addr;
 	dma_addr_t		 dma_addr;
+	u32			mem_size;
 	/* helpers */
 	int			 baud;
 	int			 bits;
@@ -90,4 +100,38 @@ void scc2_lineif(struct uart_cpm_port *pinfo);
 void scc3_lineif(struct uart_cpm_port *pinfo);
 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)
+{
+	int offset;
+	u32 val = (u32)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;
+	}
+	/* something nasty happened */
+	BUG();
+	return 0;
+}
+
+static inline void *cpm2cpu_addr(unsigned long addr, struct uart_cpm_port *pinfo)
+{
+	int offset;
+	u32 val = 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);
+	}
+	/* something nasty happened */
+	BUG();
+	return 0;
+}
+
+
 #endif /* CPM_UART_H */
diff --git a/drivers/serial/cpm_uart/cpm_uart_core.c b/drivers/serial/cpm_uart/cpm_uart_core.c
index b7bf4c698a47..5cba59ad7dc5 100644
--- a/drivers/serial/cpm_uart/cpm_uart_core.c
+++ b/drivers/serial/cpm_uart/cpm_uart_core.c
@@ -12,7 +12,8 @@
  *
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
  *            (C) 2004 Intracom, S.A.
- *            (C) 2005 MontaVista Software, Inc. by Vitaly Bordug <vbordug@ru.mvista.com>
+ *            (C) 2005-2006 MontaVista Software, Inc.
+ * 		Vitaly Bordug <vbordug@ru.mvista.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -41,6 +42,7 @@
 #include <linux/device.h>
 #include <linux/bootmem.h>
 #include <linux/dma-mapping.h>
+#include <linux/fs_uart_pd.h>
 
 #include <asm/io.h>
 #include <asm/irq.h>
@@ -60,7 +62,7 @@
 /* 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;
+int cpm_uart_nr = 0;
 
 /**************************************************************/
 
@@ -71,18 +73,51 @@ static void cpm_uart_initbd(struct uart_cpm_port *pinfo);
 
 /**************************************************************/
 
-static inline unsigned long cpu2cpm_addr(void *addr)
+
+/* Place-holder for board-specific stuff */
+struct platform_device* __attribute__ ((weak)) __init
+early_uart_get_pdev(int index)
+{
+	return NULL;
+}
+
+
+static void cpm_uart_count(void)
 {
-	if ((unsigned long)addr >= CPM_ADDR)
-		return (unsigned long)addr;
-	return virt_to_bus(addr);
+	cpm_uart_nr = 0;
+#ifdef CONFIG_SERIAL_CPM_SMC1
+	cpm_uart_port_map[cpm_uart_nr++] = UART_SMC1;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SMC2
+	cpm_uart_port_map[cpm_uart_nr++] = UART_SMC2;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC1
+	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC1;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC2
+	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC2;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC3
+	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC3;
+#endif
+#ifdef CONFIG_SERIAL_CPM_SCC4
+	cpm_uart_port_map[cpm_uart_nr++] = UART_SCC4;
+#endif
 }
 
-static inline void *cpm2cpu_addr(unsigned long addr)
+/* Get UART number by its id */
+static int cpm_uart_id2nr(int id)
 {
-	if (addr >= CPM_ADDR)
-		return (void *)addr;
-	return bus_to_virt(addr);
+	int i;
+	if (id < UART_NR) {
+		for (i=0; i<UART_NR; i++) {
+			if (cpm_uart_port_map[i] == id)
+				return i;
+		}
+	}
+
+	/* not found or invalid argument */
+	return -1;
 }
 
 /*
@@ -258,7 +293,7 @@ static void cpm_uart_int_rx(struct uart_port *port, struct pt_regs *regs)
 		}
 
 		/* get pointer */
-		cp = cpm2cpu_addr(bdp->cbd_bufaddr);
+		cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
 
 		/* loop through the buffer */
 		while (i-- > 0) {
@@ -438,7 +473,11 @@ static void cpm_uart_shutdown(struct uart_port *port)
 		}
 
 		/* Shut them really down and reinit buffer descriptors */
-		cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
+		if (IS_SMC(pinfo))
+			cpm_line_cr_cmd(line, CPM_CR_STOP_TX);
+		else
+			cpm_line_cr_cmd(line, CPM_CR_GRA_STOP_TX);
+
 		cpm_uart_initbd(pinfo);
 	}
 }
@@ -601,7 +640,7 @@ 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);
+		p = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
 
 		*p++ = port->x_char;
 		bdp->cbd_datlen = 1;
@@ -628,7 +667,7 @@ static int cpm_uart_tx_pump(struct uart_port *port)
 
 	while (!(bdp->cbd_sc & BD_SC_READY) && (xmit->tail != xmit->head)) {
 		count = 0;
-		p = cpm2cpu_addr(bdp->cbd_bufaddr);
+		p = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
 		while (count < pinfo->tx_fifosize) {
 			*p++ = xmit->buf[xmit->tail];
 			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
@@ -677,12 +716,12 @@ 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);
+		bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
 		bdp->cbd_sc = BD_SC_EMPTY | BD_SC_INTRPT;
 		mem_addr += pinfo->rx_fifosize;
 	}
 
-	bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr);
+	bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
 	bdp->cbd_sc = BD_SC_WRAP | BD_SC_EMPTY | BD_SC_INTRPT;
 
 	/* Set the physical address of the host memory
@@ -692,12 +731,12 @@ 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);
+		bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
 		bdp->cbd_sc = BD_SC_INTRPT;
 		mem_addr += pinfo->tx_fifosize;
 	}
 
-	bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr);
+	bdp->cbd_bufaddr = cpu2cpm_addr(mem_addr, pinfo);
 	bdp->cbd_sc = BD_SC_WRAP | BD_SC_INTRPT;
 }
 
@@ -829,14 +868,6 @@ static int cpm_uart_request_port(struct uart_port *port)
 	if (pinfo->flags & FLAG_CONSOLE)
 		return 0;
 
-	/*
-	 * Setup any port IO, connect any baud rate generators,
-	 * etc.  This is expected to be handled by board
-	 * dependant code
-	 */
-	if (pinfo->set_lineif)
-		pinfo->set_lineif(pinfo);
-
 	if (IS_SMC(pinfo)) {
 		pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
 		pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
@@ -988,6 +1019,58 @@ struct uart_cpm_port cpm_uart_ports[UART_NR] = {
 	},
 };
 
+int cpm_uart_drv_get_platform_data(struct platform_device *pdev, int is_con)
+{
+	struct resource *r;
+	struct fs_uart_platform_info *pdata = pdev->dev.platform_data;
+	int idx = pdata->fs_no;	/* It is UART_SMCx or UART_SCCx index */
+	struct uart_cpm_port *pinfo;
+	int line;
+	u32 mem, pram;
+
+	line = cpm_uart_id2nr(idx);
+	if(line < 0) {
+		printk(KERN_ERR"%s(): port %d is not registered", __FUNCTION__, idx);
+		return -1;
+	}
+
+	pinfo = (struct uart_cpm_port *) &cpm_uart_ports[idx];
+
+	pinfo->brg = pdata->brg;
+
+	if (!is_con) {
+		pinfo->port.line = line;
+		pinfo->port.flags = UPF_BOOT_AUTOCONF;
+	}
+
+	if (!(r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs")))
+		return -EINVAL;
+	mem = r->start;
+
+	if (!(r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pram")))
+		return -EINVAL;
+	pram = r->start;
+
+	if(idx > fsid_smc2_uart) {
+		pinfo->sccp = (scc_t *)mem;
+		pinfo->sccup = (scc_uart_t *)pram;
+	} else {
+		pinfo->smcp = (smc_t *)mem;
+		pinfo->smcup = (smc_uart_t *)pram;
+	}
+	pinfo->tx_nrfifos = pdata->tx_num_fifo;
+	pinfo->tx_fifosize = pdata->tx_buf_size;
+
+	pinfo->rx_nrfifos = pdata->rx_num_fifo;
+	pinfo->rx_fifosize = pdata->rx_buf_size;
+
+	pinfo->port.uartclk = pdata->uart_clk;
+	pinfo->port.mapbase = (unsigned long)mem;
+	pinfo->port.irq = platform_get_irq(pdev, 0);
+
+	return 0;
+}
+
 #ifdef CONFIG_SERIAL_CPM_CONSOLE
 /*
  *	Print a string to the serial port trying not to disturb
@@ -1027,7 +1110,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 		 * If the buffer address is in the CPM DPRAM, don't
 		 * convert it.
 		 */
-		cp = cpm2cpu_addr(bdp->cbd_bufaddr);
+		cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
 
 		*cp = *s;
 
@@ -1044,7 +1127,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 			while ((bdp->cbd_sc & BD_SC_READY) != 0)
 				;
 
-			cp = cpm2cpu_addr(bdp->cbd_bufaddr);
+			cp = cpm2cpu_addr(bdp->cbd_bufaddr, pinfo);
 
 			*cp = 13;
 			bdp->cbd_datlen = 1;
@@ -1067,9 +1150,7 @@ static void cpm_uart_console_write(struct console *co, const char *s,
 	pinfo->tx_cur = (volatile cbd_t *) bdp;
 }
 
-/*
- * Setup console. Be careful is called early !
- */
+
 static int __init cpm_uart_console_setup(struct console *co, char *options)
 {
 	struct uart_port *port;
@@ -1080,9 +1161,29 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
 	int flow = 'n';
 	int ret;
 
+	struct fs_uart_platform_info *pdata;
+	struct platform_device* pdev = early_uart_get_pdev(co->index);
+
+	if (!pdev) {
+		pr_info("cpm_uart: console: compat mode\n");
+		/* compatibility - will be cleaned up */
+		cpm_uart_init_portdesc();
+	}
+
 	port =
 	    (struct uart_port *)&cpm_uart_ports[cpm_uart_port_map[co->index]];
 	pinfo = (struct uart_cpm_port *)port;
+	if (!pdev) {
+		if (pinfo->set_lineif)
+			pinfo->set_lineif(pinfo);
+	} else {
+		pdata = pdev->dev.platform_data;
+		if (pdata)
+			if (pdata->init_ioports)
+    	                	pdata->init_ioports();
+
+		cpm_uart_drv_get_platform_data(pdev, 1);
+	}
 
 	pinfo->flags |= FLAG_CONSOLE;
 
@@ -1097,14 +1198,6 @@ static int __init cpm_uart_console_setup(struct console *co, char *options)
 			baud = 9600;
 	}
 
-	/*
-	 * Setup any port IO, connect any baud rate generators,
-	 * etc.  This is expected to be handled by board
-	 * dependant code
-	 */
-	if (pinfo->set_lineif)
-		pinfo->set_lineif(pinfo);
-
 	if (IS_SMC(pinfo)) {
 		pinfo->smcp->smc_smcm &= ~(SMCM_RX | SMCM_TX);
 		pinfo->smcp->smc_smcmr &= ~(SMCMR_REN | SMCMR_TEN);
@@ -1143,11 +1236,8 @@ static struct console cpm_scc_uart_console = {
 
 int __init cpm_uart_console_init(void)
 {
-	int ret = cpm_uart_init_portdesc();
-
-	if (!ret)
-		register_console(&cpm_scc_uart_console);
-	return ret;
+	register_console(&cpm_scc_uart_console);
+	return 0;
 }
 
 console_initcall(cpm_uart_console_init);
@@ -1165,44 +1255,129 @@ static struct uart_driver cpm_reg = {
 	.minor		= SERIAL_CPM_MINOR,
 	.cons		= CPM_UART_CONSOLE,
 };
-
-static int __init cpm_uart_init(void)
+static int cpm_uart_drv_probe(struct device *dev)
 {
-	int ret, i;
-
-	printk(KERN_INFO "Serial: CPM driver $Revision: 0.01 $\n");
+	struct platform_device  *pdev = to_platform_device(dev);
+	struct fs_uart_platform_info *pdata;
+	int ret = -ENODEV;
 
-#ifndef CONFIG_SERIAL_CPM_CONSOLE
-	ret = cpm_uart_init_portdesc();
-	if (ret)
+	if(!pdev) {
+		printk(KERN_ERR"CPM UART: platform data missing!\n");
 		return ret;
-#endif
+	}
 
-	cpm_reg.nr = cpm_uart_nr;
-	ret = uart_register_driver(&cpm_reg);
+	pdata = pdev->dev.platform_data;
+	pr_debug("cpm_uart_drv_probe: Adding CPM UART %d\n", cpm_uart_id2nr(pdata->fs_no));
 
-	if (ret)
+	if ((ret = cpm_uart_drv_get_platform_data(pdev, 0)))
 		return ret;
 
-	for (i = 0; i < cpm_uart_nr; i++) {
-		int con = cpm_uart_port_map[i];
-		cpm_uart_ports[con].port.line = i;
-		cpm_uart_ports[con].port.flags = UPF_BOOT_AUTOCONF;
-		uart_add_one_port(&cpm_reg, &cpm_uart_ports[con].port);
-	}
+	if (pdata->init_ioports)
+                pdata->init_ioports();
 
-	return ret;
+	ret = uart_add_one_port(&cpm_reg, &cpm_uart_ports[pdata->fs_no].port);
+
+        return ret;
 }
 
-static void __exit cpm_uart_exit(void)
+static int cpm_uart_drv_remove(struct device *dev)
+{
+	struct platform_device  *pdev = to_platform_device(dev);
+	struct fs_uart_platform_info *pdata = pdev->dev.platform_data;
+
+	pr_debug("cpm_uart_drv_remove: Removing CPM UART %d\n",
+			cpm_uart_id2nr(pdata->fs_no));
+
+        uart_remove_one_port(&cpm_reg, &cpm_uart_ports[pdata->fs_no].port);
+        return 0;
+}
+
+static struct device_driver cpm_smc_uart_driver = {
+        .name   = "fsl-cpm-smc:uart",
+        .bus    = &platform_bus_type,
+        .probe  = cpm_uart_drv_probe,
+        .remove = cpm_uart_drv_remove,
+};
+
+static struct device_driver cpm_scc_uart_driver = {
+        .name   = "fsl-cpm-scc:uart",
+        .bus    = &platform_bus_type,
+        .probe  = cpm_uart_drv_probe,
+        .remove = cpm_uart_drv_remove,
+};
+
+/*
+   This is supposed to match uart devices on platform bus,
+   */
+static int match_is_uart (struct device* dev, void* data)
 {
+	struct platform_device* pdev = container_of(dev, struct platform_device, dev);
+	int ret = 0;
+	/* this was setfunc as uart */
+	if(strstr(pdev->name,":uart")) {
+		ret = 1;
+	}
+	return ret;
+}
+
+
+static int cpm_uart_init(void) {
+
+	int ret;
 	int i;
+	struct device *dev;
+	printk(KERN_INFO "Serial: CPM driver $Revision: 0.02 $\n");
+
+	/* lookup the bus for uart devices */
+	dev = bus_find_device(&platform_bus_type, NULL, 0, match_is_uart);
+
+	/* There are devices on the bus - all should be OK  */
+	if (dev) {
+		cpm_uart_count();
+		cpm_reg.nr = cpm_uart_nr;
+
+		if (!(ret = uart_register_driver(&cpm_reg))) {
+			if ((ret = driver_register(&cpm_smc_uart_driver))) {
+				uart_unregister_driver(&cpm_reg);
+				return ret;
+			}
+			if ((ret = driver_register(&cpm_scc_uart_driver))) {
+				driver_unregister(&cpm_scc_uart_driver);
+				uart_unregister_driver(&cpm_reg);
+			}
+		}
+	} else {
+	/* No capable platform devices found - falling back to legacy mode */
+		pr_info("cpm_uart: WARNING: no UART devices found on platform bus!\n");
+		pr_info(
+		"cpm_uart: the driver will guess configuration, but this mode is no longer supported.\n");
+#ifndef CONFIG_SERIAL_CPM_CONSOLE
+		ret = cpm_uart_init_portdesc();
+		if (ret)
+			return ret;
+#endif
+
+		cpm_reg.nr = cpm_uart_nr;
+		ret = uart_register_driver(&cpm_reg);
+
+		if (ret)
+			return ret;
+
+		for (i = 0; i < cpm_uart_nr; i++) {
+			int con = cpm_uart_port_map[i];
+			cpm_uart_ports[con].port.line = i;
+			cpm_uart_ports[con].port.flags = UPF_BOOT_AUTOCONF;
+			uart_add_one_port(&cpm_reg, &cpm_uart_ports[con].port);
+		}
 
-	for (i = 0; i < cpm_uart_nr; i++) {
-		int con = cpm_uart_port_map[i];
-		uart_remove_one_port(&cpm_reg, &cpm_uart_ports[con].port);
 	}
+	return ret;
+}
 
+static void __exit cpm_uart_exit(void)
+{
+	driver_unregister(&cpm_scc_uart_driver);
+	driver_unregister(&cpm_smc_uart_driver);
 	uart_unregister_driver(&cpm_reg);
 }
 
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm1.c b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
index d789ee55cbb7..17406a05ce1f 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm1.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm1.c
@@ -8,6 +8,8 @@
  *
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
  *            (C) 2004 Intracom, S.A.
+ *            (C) 2006 MontaVista Software, Inc.
+ * 		Vitaly Bordug <vbordug@ru.mvista.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -81,58 +83,11 @@ void cpm_line_cr_cmd(int line, int cmd)
 
 void smc1_lineif(struct uart_cpm_port *pinfo)
 {
-	volatile cpm8xx_t *cp = cpmp;
-
-	(void)cp;	/* fix warning */
-#if defined (CONFIG_MPC885ADS)
-	/* Enable SMC1 transceivers */
-	{
-		cp->cp_pepar |= 0x000000c0;
-		cp->cp_pedir &= ~0x000000c0;
-		cp->cp_peso &= ~0x00000040;
-		cp->cp_peso |= 0x00000080;
-	}
-#elif defined (CONFIG_MPC86XADS)
-	unsigned int iobits = 0x000000c0;
-
-	if (!pinfo->is_portb) {
-		cp->cp_pbpar |= iobits;
-		cp->cp_pbdir &= ~iobits;
-		cp->cp_pbodr &= ~iobits;
-	} else {
-		((immap_t *)IMAP_ADDR)->im_ioport.iop_papar |= iobits;
-		((immap_t *)IMAP_ADDR)->im_ioport.iop_padir &= ~iobits;
-		((immap_t *)IMAP_ADDR)->im_ioport.iop_paodr &= ~iobits;
-	}
-#endif
 	pinfo->brg = 1;
 }
 
 void smc2_lineif(struct uart_cpm_port *pinfo)
 {
-	volatile cpm8xx_t *cp = cpmp;
-
-	(void)cp;	/* fix warning */
-#if defined (CONFIG_MPC885ADS)
-	cp->cp_pepar |= 0x00000c00;
-	cp->cp_pedir &= ~0x00000c00;
-	cp->cp_peso &= ~0x00000400;
-	cp->cp_peso |= 0x00000800;
-#elif defined (CONFIG_MPC86XADS)
-	unsigned int iobits = 0x00000c00;
-
-	if (!pinfo->is_portb) {
-		cp->cp_pbpar |= iobits;
-		cp->cp_pbdir &= ~iobits;
-		cp->cp_pbodr &= ~iobits;
-	} else {
-		((immap_t *)IMAP_ADDR)->im_ioport.iop_papar |= iobits;
-		((immap_t *)IMAP_ADDR)->im_ioport.iop_padir &= ~iobits;
-		((immap_t *)IMAP_ADDR)->im_ioport.iop_paodr &= ~iobits;
-	}
-
-#endif
-
 	pinfo->brg = 2;
 }
 
@@ -191,7 +146,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 		/* was hostalloc but changed cause it blows away the */
 		/* large tlb mapping when pinning the kernel area    */
 		mem_addr = (u8 *) cpm_dpram_addr(cpm_dpalloc(memsz, 8));
-		dma_addr = 0;
+		dma_addr = (u32)mem_addr;
 	} else
 		mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
 					      GFP_KERNEL);
@@ -204,8 +159,9 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 	}
 
 	pinfo->dp_addr = dp_offset;
-	pinfo->mem_addr = mem_addr;
-	pinfo->dma_addr = dma_addr;
+	pinfo->mem_addr = mem_addr;             /*  virtual address*/
+	pinfo->dma_addr = dma_addr;             /*  physical address*/
+	pinfo->mem_size = memsz;
 
 	pinfo->rx_buf = mem_addr;
 	pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
diff --git a/drivers/serial/cpm_uart/cpm_uart_cpm2.c b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
index fd9e53ed3feb..cdba128250a9 100644
--- a/drivers/serial/cpm_uart/cpm_uart_cpm2.c
+++ b/drivers/serial/cpm_uart/cpm_uart_cpm2.c
@@ -8,6 +8,8 @@
  * 
  *  Copyright (C) 2004 Freescale Semiconductor, Inc.
  *            (C) 2004 Intracom, S.A.
+ *            (C) 2006 MontaVista Software, Inc.
+ * 		Vitaly Bordug <vbordug@ru.mvista.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -142,14 +144,6 @@ void scc2_lineif(struct uart_cpm_port *pinfo)
 	 * be supported in a sane fashion.
 	 */
 #ifndef CONFIG_STX_GP3
-#ifdef CONFIG_MPC8560_ADS
-	volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
-	io->iop_ppard |= 0x00000018;
-	io->iop_psord &= ~0x00000008;	/* Rx */
-	io->iop_psord &= ~0x00000010;	/* Tx */
-	io->iop_pdird &= ~0x00000008;	/* Rx */
-	io->iop_pdird |= 0x00000010;	/* Tx */
-#else
 	volatile iop_cpm2_t *io = &cpm2_immr->im_ioport;
 	io->iop_pparb |= 0x008b0000;
 	io->iop_pdirb |= 0x00880000;
@@ -157,7 +151,6 @@ void scc2_lineif(struct uart_cpm_port *pinfo)
 	io->iop_pdirb &= ~0x00030000;
 	io->iop_psorb &= ~0x00030000;
 #endif
-#endif
 	cpm2_immr->im_cpmux.cmx_scr &= 0xff00ffff;
 	cpm2_immr->im_cpmux.cmx_scr |= 0x00090000;
 	pinfo->brg = 2;
@@ -218,8 +211,10 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 
 	memsz = L1_CACHE_ALIGN(pinfo->rx_nrfifos * pinfo->rx_fifosize) +
 	    L1_CACHE_ALIGN(pinfo->tx_nrfifos * pinfo->tx_fifosize);
-	if (is_con)
+	if (is_con) {
 		mem_addr = alloc_bootmem(memsz);
+		dma_addr = virt_to_bus(mem_addr);
+	}
 	else
 		mem_addr = dma_alloc_coherent(NULL, memsz, &dma_addr,
 					      GFP_KERNEL);
@@ -234,6 +229,7 @@ int cpm_uart_allocbuf(struct uart_cpm_port *pinfo, unsigned int is_con)
 	pinfo->dp_addr = dp_offset;
 	pinfo->mem_addr = mem_addr;
 	pinfo->dma_addr = dma_addr;
+	pinfo->mem_size = memsz;
 
 	pinfo->rx_buf = mem_addr;
 	pinfo->tx_buf = pinfo->rx_buf + L1_CACHE_ALIGN(pinfo->rx_nrfifos
diff --git a/drivers/serial/imx.c b/drivers/serial/imx.c
index c3b7a6673e9c..d202eb4f3848 100644
--- a/drivers/serial/imx.c
+++ b/drivers/serial/imx.c
@@ -45,6 +45,7 @@
 #include <asm/io.h>
 #include <asm/irq.h>
 #include <asm/hardware.h>
+#include <asm/arch/imx-uart.h>
 
 /* We've been assigned a range on the "Low-density serial ports" major */
 #define SERIAL_IMX_MAJOR	204
@@ -73,7 +74,8 @@ struct imx_port {
 	struct uart_port	port;
 	struct timer_list	timer;
 	unsigned int		old_status;
-	int txirq,rxirq,rtsirq;
+	int			txirq,rxirq,rtsirq;
+	int			have_rtscts:1;
 };
 
 /*
@@ -491,8 +493,12 @@ imx_set_termios(struct uart_port *port, struct termios *termios,
 		ucr2 = UCR2_SRST | UCR2_IRTS;
 
 	if (termios->c_cflag & CRTSCTS) {
-		ucr2 &= ~UCR2_IRTS;
-		ucr2 |= UCR2_CTSC;
+		if( sport->have_rtscts ) {
+			ucr2 &= ~UCR2_IRTS;
+			ucr2 |= UCR2_CTSC;
+		} else {
+			termios->c_cflag &= ~CRTSCTS;
+		}
 	}
 
 	if (termios->c_cflag & CSTOPB)
@@ -719,27 +725,6 @@ static void __init imx_init_ports(void)
 		imx_ports[i].timer.function = imx_timeout;
 		imx_ports[i].timer.data     = (unsigned long)&imx_ports[i];
 	}
-
-	imx_gpio_mode(PC9_PF_UART1_CTS);
-	imx_gpio_mode(PC10_PF_UART1_RTS);
-	imx_gpio_mode(PC11_PF_UART1_TXD);
-	imx_gpio_mode(PC12_PF_UART1_RXD);
-	imx_gpio_mode(PB28_PF_UART2_CTS);
-	imx_gpio_mode(PB29_PF_UART2_RTS);
-
-	imx_gpio_mode(PB30_PF_UART2_TXD);
-	imx_gpio_mode(PB31_PF_UART2_RXD);
-
-#if 0 /* We don't need these, on the mx1 the _modem_ side of the uart
-       * is implemented.
-       */
-	imx_gpio_mode(PD7_AF_UART2_DTR);
-	imx_gpio_mode(PD8_AF_UART2_DCD);
-	imx_gpio_mode(PD9_AF_UART2_RI);
-	imx_gpio_mode(PD10_AF_UART2_DSR);
-#endif
-
-
 }
 
 #ifdef CONFIG_SERIAL_IMX_CONSOLE
@@ -932,7 +917,14 @@ static int serial_imx_resume(struct platform_device *dev)
 
 static int serial_imx_probe(struct platform_device *dev)
 {
+	struct imxuart_platform_data *pdata;
+
 	imx_ports[dev->id].port.dev = &dev->dev;
+
+	pdata = (struct imxuart_platform_data *)dev->dev.platform_data;
+	if(pdata && (pdata->flags & IMXUART_HAVE_RTSCTS))
+		imx_ports[dev->id].have_rtscts = 1;
+
 	uart_add_one_port(&imx_reg, &imx_ports[dev->id].port);
 	platform_set_drvdata(dev, &imx_ports[dev->id]);
 	return 0;
diff --git a/drivers/serial/m32r_sio.c b/drivers/serial/m32r_sio.c
index e9c10c0a30fc..321a40f33b50 100644
--- a/drivers/serial/m32r_sio.c
+++ b/drivers/serial/m32r_sio.c
@@ -1057,7 +1057,6 @@ static void m32r_sio_console_write(struct console *co, const char *s,
 {
 	struct uart_sio_port *up = &m32r_sio_ports[co->index];
 	unsigned int ier;
-	int i;
 
 	/*
 	 *	First save the UER then disable the interrupts
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c
index fcd7744c4253..17839e753e4c 100644
--- a/drivers/serial/serial_core.c
+++ b/drivers/serial/serial_core.c
@@ -1500,20 +1500,18 @@ uart_block_til_ready(struct file *filp, struct uart_state *state)
 static struct uart_state *uart_get(struct uart_driver *drv, int line)
 {
 	struct uart_state *state;
+	int ret = 0;
 
-	mutex_lock(&port_mutex);
 	state = drv->state + line;
 	if (mutex_lock_interruptible(&state->mutex)) {
-		state = ERR_PTR(-ERESTARTSYS);
-		goto out;
+		ret = -ERESTARTSYS;
+		goto err;
 	}
 
 	state->count++;
-	if (!state->port) {
-		state->count--;
-		mutex_unlock(&state->mutex);
-		state = ERR_PTR(-ENXIO);
-		goto out;
+	if (!state->port || state->port->flags & UPF_DEAD) {
+		ret = -ENXIO;
+		goto err_unlock;
 	}
 
 	if (!state->info) {
@@ -1531,15 +1529,17 @@ static struct uart_state *uart_get(struct uart_driver *drv, int line)
 			tasklet_init(&state->info->tlet, uart_tasklet_action,
 				     (unsigned long)state);
 		} else {
-			state->count--;
-			mutex_unlock(&state->mutex);
-			state = ERR_PTR(-ENOMEM);
+			ret = -ENOMEM;
+			goto err_unlock;
 		}
 	}
-
- out:
-	mutex_unlock(&port_mutex);
 	return state;
+
+ err_unlock:
+	state->count--;
+	mutex_unlock(&state->mutex);
+ err:
+	return ERR_PTR(ret);
 }
 
 /*
@@ -1907,9 +1907,12 @@ uart_set_options(struct uart_port *port, struct console *co,
 static void uart_change_pm(struct uart_state *state, int pm_state)
 {
 	struct uart_port *port = state->port;
-	if (port->ops->pm)
-		port->ops->pm(port, pm_state, state->pm_state);
-	state->pm_state = pm_state;
+
+	if (state->pm_state != pm_state) {
+		if (port->ops->pm)
+			port->ops->pm(port, pm_state, state->pm_state);
+		state->pm_state = pm_state;
+	}
 }
 
 int uart_suspend_port(struct uart_driver *drv, struct uart_port *port)
@@ -2085,45 +2088,6 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state,
 	}
 }
 
-/*
- * This reverses the effects of uart_configure_port, hanging up the
- * port before removal.
- */
-static void
-uart_unconfigure_port(struct uart_driver *drv, struct uart_state *state)
-{
-	struct uart_port *port = state->port;
-	struct uart_info *info = state->info;
-
-	if (info && info->tty)
-		tty_vhangup(info->tty);
-
-	mutex_lock(&state->mutex);
-
-	state->info = NULL;
-
-	/*
-	 * Free the port IO and memory resources, if any.
-	 */
-	if (port->type != PORT_UNKNOWN)
-		port->ops->release_port(port);
-
-	/*
-	 * Indicate that there isn't a port here anymore.
-	 */
-	port->type = PORT_UNKNOWN;
-
-	/*
-	 * Kill the tasklet, and free resources.
-	 */
-	if (info) {
-		tasklet_kill(&info->tlet);
-		kfree(info);
-	}
-
-	mutex_unlock(&state->mutex);
-}
-
 static struct tty_operations uart_ops = {
 	.open		= uart_open,
 	.close		= uart_close,
@@ -2270,6 +2234,7 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port)
 	state = drv->state + port->line;
 
 	mutex_lock(&port_mutex);
+	mutex_lock(&state->mutex);
 	if (state->port) {
 		ret = -EINVAL;
 		goto out;
@@ -2304,7 +2269,13 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port)
 	    port->cons && !(port->cons->flags & CON_ENABLED))
 		register_console(port->cons);
 
+	/*
+	 * Ensure UPF_DEAD is not set.
+	 */
+	port->flags &= ~UPF_DEAD;
+
  out:
+	mutex_unlock(&state->mutex);
 	mutex_unlock(&port_mutex);
 
 	return ret;
@@ -2322,6 +2293,7 @@ int uart_add_one_port(struct uart_driver *drv, struct uart_port *port)
 int uart_remove_one_port(struct uart_driver *drv, struct uart_port *port)
 {
 	struct uart_state *state = drv->state + port->line;
+	struct uart_info *info;
 
 	BUG_ON(in_interrupt());
 
@@ -2332,11 +2304,48 @@ int uart_remove_one_port(struct uart_driver *drv, struct uart_port *port)
 	mutex_lock(&port_mutex);
 
 	/*
+	 * Mark the port "dead" - this prevents any opens from
+	 * succeeding while we shut down the port.
+	 */
+	mutex_lock(&state->mutex);
+	port->flags |= UPF_DEAD;
+	mutex_unlock(&state->mutex);
+
+	/*
 	 * Remove the devices from devfs
 	 */
 	tty_unregister_device(drv->tty_driver, port->line);
 
-	uart_unconfigure_port(drv, state);
+	info = state->info;
+	if (info && info->tty)
+		tty_vhangup(info->tty);
+
+	/*
+	 * All users of this port should now be disconnected from
+	 * this driver, and the port shut down.  We should be the
+	 * only thread fiddling with this port from now on.
+	 */
+	state->info = NULL;
+
+	/*
+	 * Free the port IO and memory resources, if any.
+	 */
+	if (port->type != PORT_UNKNOWN)
+		port->ops->release_port(port);
+
+	/*
+	 * Indicate that there isn't a port here anymore.
+	 */
+	port->type = PORT_UNKNOWN;
+
+	/*
+	 * Kill the tasklet, and free resources.
+	 */
+	if (info) {
+		tasklet_kill(&info->tlet);
+		kfree(info);
+	}
+
 	state->port = NULL;
 	mutex_unlock(&port_mutex);
 
diff --git a/drivers/serial/sunsu.c b/drivers/serial/sunsu.c
index 1c4396c2962d..2b4f96541b8e 100644
--- a/drivers/serial/sunsu.c
+++ b/drivers/serial/sunsu.c
@@ -1730,3 +1730,4 @@ static void __exit sunsu_exit(void)
 
 module_init(sunsu_probe);
 module_exit(sunsu_exit);
+MODULE_LICENSE("GPL");