Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:

	Documentation/powerpc/booting-without-of.txt
	drivers/atm/Makefile
	drivers/net/fs_enet/fs_enet-main.c
	drivers/pci/pci-acpi.c
	net/8021q/vlan.c
	net/iucv/iucv.c

24 files changed, 3624 insertions, 0 deletions

diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig
new file mode 100644
index 00000000000..b92a134ef12
--- /dev/null
+++ b/arch/mips/txx9/Kconfig
@@ -0,0 +1,115 @@
+config TOSHIBA_JMR3927
+	bool "Toshiba JMR-TX3927 board"
+	depends on MACH_TX39XX
+	select SOC_TX3927
+
+config TOSHIBA_RBTX4927
+	bool "Toshiba RBTX49[23]7 board"
+	depends on MACH_TX49XX
+	select SOC_TX4927
+	help
+	  This Toshiba board is based on the TX4927 processor. Say Y here to
+	  support this machine type
+
+config TOSHIBA_RBTX4938
+	bool "Toshiba RBTX4938 board"
+	depends on MACH_TX49XX
+	select SOC_TX4938
+	help
+	  This Toshiba board is based on the TX4938 processor. Say Y here to
+	  support this machine type
+
+config SOC_TX3927
+	bool
+	select CEVT_TXX9
+	select DMA_NONCOHERENT
+	select HAS_TXX9_SERIAL
+	select HW_HAS_PCI
+	select IRQ_TXX9
+	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_TX39XX
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select GENERIC_HARDIRQS_NO__DO_IRQ
+	select GPIO_TXX9
+
+config SOC_TX4927
+	bool
+	select CEVT_R4K
+	select CSRC_R4K
+	select CEVT_TXX9
+	select DMA_NONCOHERENT
+	select HAS_TXX9_SERIAL
+	select HW_HAS_PCI
+	select IRQ_CPU
+	select IRQ_TXX9
+	select PCI_TX4927
+	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_TX49XX
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_KGDB
+	select GENERIC_HARDIRQS_NO__DO_IRQ
+	select GPIO_TXX9
+
+config SOC_TX4938
+	bool
+	select CEVT_R4K
+	select CSRC_R4K
+	select CEVT_TXX9
+	select DMA_NONCOHERENT
+	select HAS_TXX9_SERIAL
+	select HW_HAS_PCI
+	select IRQ_CPU
+	select IRQ_TXX9
+	select PCI_TX4927
+	select SWAP_IO_SPACE
+	select SYS_HAS_CPU_TX49XX
+	select SYS_SUPPORTS_32BIT_KERNEL
+	select SYS_SUPPORTS_64BIT_KERNEL
+	select SYS_SUPPORTS_LITTLE_ENDIAN
+	select SYS_SUPPORTS_BIG_ENDIAN
+	select SYS_SUPPORTS_KGDB
+	select GENERIC_HARDIRQS_NO__DO_IRQ
+	select GPIO_TXX9
+
+config TOSHIBA_FPCIB0
+	bool "FPCIB0 Backplane Support"
+	depends on PCI && (MACH_TX39XX || MACH_TX49XX)
+	select I8259
+
+config PICMG_PCI_BACKPLANE_DEFAULT
+	bool "Support for PICMG PCI Backplane"
+	depends on PCI && (MACH_TX39XX || MACH_TX49XX)
+	default y if !TOSHIBA_FPCIB0
+
+if TOSHIBA_RBTX4938
+
+comment "Multiplex Pin Select"
+choice
+	prompt "PIO[58:61]"
+	default TOSHIBA_RBTX4938_MPLEX_PIO58_61
+
+config TOSHIBA_RBTX4938_MPLEX_PIO58_61
+	bool "PIO"
+config TOSHIBA_RBTX4938_MPLEX_NAND
+	bool "NAND"
+config TOSHIBA_RBTX4938_MPLEX_ATA
+	bool "ATA"
+
+endchoice
+
+config TX4938_NAND_BOOT
+	depends on EXPERIMENTAL && TOSHIBA_RBTX4938_MPLEX_NAND
+	bool "NAND Boot Support (EXPERIMENTAL)"
+	help
+	  This is only for Toshiba RBTX4938 reference board, which has NAND IPL.
+	  Select this option if you need to use NAND boot.
+
+endif
+
+config PCI_TX4927
+	bool
diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile
new file mode 100644
index 00000000000..668fdaad644
--- /dev/null
+++ b/arch/mips/txx9/generic/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for common code for TXx9 based systems
+#
+
+obj-y	+= setup.o
+obj-$(CONFIG_PCI)	+= pci.o
+obj-$(CONFIG_SOC_TX4927)	+= mem_tx4927.o irq_tx4927.o
+obj-$(CONFIG_SOC_TX4938)	+= mem_tx4938.o irq_tx4938.o
+obj-$(CONFIG_TOSHIBA_FPCIB0)	+= smsc_fdc37m81x.o
+obj-$(CONFIG_KGDB)	+= dbgio.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/generic/dbgio.c b/arch/mips/txx9/generic/dbgio.c
new file mode 100644
index 00000000000..33b9c672a32
--- /dev/null
+++ b/arch/mips/txx9/generic/dbgio.c
@@ -0,0 +1,48 @@
+/*
+ * linux/arch/mips/tx4938/common/dbgio.c
+ *
+ * kgdb interface for gdb
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2005 MontaVista Software Inc.
+ *
+ *  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 the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Support for TX4938 in 2.6 - Hiroshi DOYU <Hiroshi_DOYU@montavista.co.jp>
+ */
+
+#include <linux/types>
+
+extern u8 txx9_sio_kdbg_rd(void);
+extern int txx9_sio_kdbg_wr( u8 ch );
+
+u8 getDebugChar(void)
+{
+	return (txx9_sio_kdbg_rd());
+}
+
+int putDebugChar(u8 byte)
+{
+	return (txx9_sio_kdbg_wr(byte));
+}
+
diff --git a/arch/mips/txx9/generic/irq_tx4927.c b/arch/mips/txx9/generic/irq_tx4927.c
new file mode 100644
index 00000000000..6377bd8a905
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4927.c
@@ -0,0 +1,37 @@
+/*
+ * Common tx4927 irq handler
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ *  under the terms of the GNU General Public License as published by the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9/tx4927.h>
+
+void __init tx4927_irq_init(void)
+{
+	mips_cpu_irq_init();
+	txx9_irq_init(TX4927_IRC_REG);
+	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4927_IRC_INT,
+				handle_simple_irq);
+}
diff --git a/arch/mips/txx9/generic/irq_tx4938.c b/arch/mips/txx9/generic/irq_tx4938.c
new file mode 100644
index 00000000000..5fc86c9c9d2
--- /dev/null
+++ b/arch/mips/txx9/generic/irq_tx4938.c
@@ -0,0 +1,25 @@
+/*
+ * linux/arch/mips/tx4938/common/irq.c
+ *
+ * Common tx4938 irq handler
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. 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.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/irq_cpu.h>
+#include <asm/txx9/tx4938.h>
+
+void __init tx4938_irq_init(void)
+{
+	mips_cpu_irq_init();
+	txx9_irq_init(TX4938_IRC_REG);
+	set_irq_chained_handler(MIPS_CPU_IRQ_BASE + TX4938_IRC_INT,
+				handle_simple_irq);
+}
diff --git a/arch/mips/txx9/generic/mem_tx4927.c b/arch/mips/txx9/generic/mem_tx4927.c
new file mode 100644
index 00000000000..12dfc377bf2
--- /dev/null
+++ b/arch/mips/txx9/generic/mem_tx4927.c
@@ -0,0 +1,141 @@
+/*
+ * linux/arch/mips/tx4927/common/tx4927_prom.c
+ *
+ * common tx4927 memory interface
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ *  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 the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+static unsigned int __init tx4927_process_sdccr(unsigned long addr)
+{
+	u64 val;
+	unsigned int sdccr_ce;
+	unsigned int sdccr_bs;
+	unsigned int sdccr_rs;
+	unsigned int sdccr_cs;
+	unsigned int sdccr_mw;
+	unsigned int bs = 0;
+	unsigned int rs = 0;
+	unsigned int cs = 0;
+	unsigned int mw = 0;
+	unsigned int msize = 0;
+
+	val = __raw_readq((void __iomem *)addr);
+
+	/* MVMCP -- need #defs for these bits masks */
+	sdccr_ce = ((val & (1 << 10)) >> 10);
+	sdccr_bs = ((val & (1 << 8)) >> 8);
+	sdccr_rs = ((val & (3 << 5)) >> 5);
+	sdccr_cs = ((val & (3 << 2)) >> 2);
+	sdccr_mw = ((val & (1 << 0)) >> 0);
+
+	if (sdccr_ce) {
+		switch (sdccr_bs) {
+		case 0:{
+				bs = 2;
+				break;
+			}
+		case 1:{
+				bs = 4;
+				break;
+			}
+		}
+		switch (sdccr_rs) {
+		case 0:{
+				rs = 2048;
+				break;
+			}
+		case 1:{
+				rs = 4096;
+				break;
+			}
+		case 2:{
+				rs = 8192;
+				break;
+			}
+		case 3:{
+				rs = 0;
+				break;
+			}
+		}
+		switch (sdccr_cs) {
+		case 0:{
+				cs = 256;
+				break;
+			}
+		case 1:{
+				cs = 512;
+				break;
+			}
+		case 2:{
+				cs = 1024;
+				break;
+			}
+		case 3:{
+				cs = 2048;
+				break;
+			}
+		}
+		switch (sdccr_mw) {
+		case 0:{
+				mw = 8;
+				break;
+			}	/* 8 bytes = 64 bits */
+		case 1:{
+				mw = 4;
+				break;
+			}	/* 4 bytes = 32 bits */
+		}
+	}
+
+	/*            bytes per chip     MB per chip      num chips */
+	msize = (((rs * cs * mw) / (1024 * 1024)) * bs);
+
+	return (msize);
+}
+
+
+unsigned int __init tx4927_get_mem_size(void)
+{
+	unsigned int c0;
+	unsigned int c1;
+	unsigned int c2;
+	unsigned int c3;
+	unsigned int total;
+
+	/* MVMCP -- need #defs for these registers */
+	c0 = tx4927_process_sdccr(0xff1f8000);
+	c1 = tx4927_process_sdccr(0xff1f8008);
+	c2 = tx4927_process_sdccr(0xff1f8010);
+	c3 = tx4927_process_sdccr(0xff1f8018);
+	total = c0 + c1 + c2 + c3;
+
+	return (total);
+}
diff --git a/arch/mips/txx9/generic/mem_tx4938.c b/arch/mips/txx9/generic/mem_tx4938.c
new file mode 100644
index 00000000000..20baeaeba4c
--- /dev/null
+++ b/arch/mips/txx9/generic/mem_tx4938.c
@@ -0,0 +1,124 @@
+/*
+ * linux/arch/mips/tx4938/common/prom.c
+ *
+ * common tx4938 memory interface
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. 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.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/io.h>
+
+static unsigned int __init
+tx4938_process_sdccr(u64 * addr)
+{
+	u64 val;
+	unsigned int sdccr_ce;
+	unsigned int sdccr_rs;
+	unsigned int sdccr_cs;
+	unsigned int sdccr_mw;
+	unsigned int rs = 0;
+	unsigned int cs = 0;
+	unsigned int mw = 0;
+	unsigned int bc = 4;
+	unsigned int msize = 0;
+
+	val = ____raw_readq((void __iomem *)addr);
+
+	/* MVMCP -- need #defs for these bits masks */
+	sdccr_ce = ((val & (1 << 10)) >> 10);
+	sdccr_rs = ((val & (3 << 5)) >> 5);
+	sdccr_cs = ((val & (7 << 2)) >> 2);
+	sdccr_mw = ((val & (1 << 0)) >> 0);
+
+	if (sdccr_ce) {
+		switch (sdccr_rs) {
+		case 0:{
+				rs = 2048;
+				break;
+			}
+		case 1:{
+				rs = 4096;
+				break;
+			}
+		case 2:{
+				rs = 8192;
+				break;
+			}
+		default:{
+				rs = 0;
+				break;
+			}
+		}
+		switch (sdccr_cs) {
+		case 0:{
+				cs = 256;
+				break;
+			}
+		case 1:{
+				cs = 512;
+				break;
+			}
+		case 2:{
+				cs = 1024;
+				break;
+			}
+		case 3:{
+				cs = 2048;
+				break;
+			}
+		case 4:{
+				cs = 4096;
+				break;
+			}
+		default:{
+				cs = 0;
+				break;
+			}
+		}
+		switch (sdccr_mw) {
+		case 0:{
+				mw = 8;
+				break;
+			}	/* 8 bytes = 64 bits */
+		case 1:{
+				mw = 4;
+				break;
+			}	/* 4 bytes = 32 bits */
+		}
+	}
+
+	/*           bytes per chip    MB per chip          bank count */
+	msize = (((rs * cs * mw) / (1024 * 1024)) * (bc));
+
+	/* MVMCP -- bc hard coded to 4 from table 9.3.1     */
+	/*          boad supports bc=2 but no way to detect */
+
+	return (msize);
+}
+
+unsigned int __init
+tx4938_get_mem_size(void)
+{
+	unsigned int c0;
+	unsigned int c1;
+	unsigned int c2;
+	unsigned int c3;
+	unsigned int total;
+
+	/* MVMCP -- need #defs for these registers */
+	c0 = tx4938_process_sdccr((u64 *) 0xff1f8000);
+	c1 = tx4938_process_sdccr((u64 *) 0xff1f8008);
+	c2 = tx4938_process_sdccr((u64 *) 0xff1f8010);
+	c3 = tx4938_process_sdccr((u64 *) 0xff1f8018);
+	total = c0 + c1 + c2 + c3;
+
+	return (total);
+}
diff --git a/arch/mips/txx9/generic/pci.c b/arch/mips/txx9/generic/pci.c
new file mode 100644
index 00000000000..0b92d8c1320
--- /dev/null
+++ b/arch/mips/txx9/generic/pci.c
@@ -0,0 +1,388 @@
+/*
+ * linux/arch/mips/txx9/pci.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4927/setup.c,
+ *          linux/arch/mips/txx9/rbtx4938/setup.c,
+ *	    and RBTX49xx patch from CELF patch archive.
+ *
+ * Copyright 2001-2005 MontaVista Software Inc.
+ * Copyright (C) 1996, 97, 2001, 04  Ralf Baechle (ralf@linux-mips.org)
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/delay.h>
+#include <linux/jiffies.h>
+#include <linux/io.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#include <linux/interrupt.h>
+#include <asm/i8259.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+#endif
+
+static int __init
+early_read_config_word(struct pci_controller *hose,
+		       int top_bus, int bus, int devfn, int offset, u16 *value)
+{
+	struct pci_dev fake_dev;
+	struct pci_bus fake_bus;
+
+	fake_dev.bus = &fake_bus;
+	fake_dev.sysdata = hose;
+	fake_dev.devfn = devfn;
+	fake_bus.number = bus;
+	fake_bus.sysdata = hose;
+	fake_bus.ops = hose->pci_ops;
+
+	if (bus != top_bus)
+		/* Fake a parent bus structure. */
+		fake_bus.parent = &fake_bus;
+	else
+		fake_bus.parent = NULL;
+
+	return pci_read_config_word(&fake_dev, offset, value);
+}
+
+int __init txx9_pci66_check(struct pci_controller *hose, int top_bus,
+			    int current_bus)
+{
+	u32 pci_devfn;
+	unsigned short vid;
+	int cap66 = -1;
+	u16 stat;
+
+	/* It seems SLC90E66 needs some time after PCI reset... */
+	mdelay(80);
+
+	printk(KERN_INFO "PCI: Checking 66MHz capabilities...\n");
+
+	for (pci_devfn = 0; pci_devfn < 0xff; pci_devfn++) {
+		if (PCI_FUNC(pci_devfn))
+			continue;
+		if (early_read_config_word(hose, top_bus, current_bus,
+					   pci_devfn, PCI_VENDOR_ID, &vid) !=
+		    PCIBIOS_SUCCESSFUL)
+			continue;
+		if (vid == 0xffff)
+			continue;
+
+		/* check 66MHz capability */
+		if (cap66 < 0)
+			cap66 = 1;
+		if (cap66) {
+			early_read_config_word(hose, top_bus, current_bus,
+					       pci_devfn, PCI_STATUS, &stat);
+			if (!(stat & PCI_STATUS_66MHZ)) {
+				printk(KERN_DEBUG
+				       "PCI: %02x:%02x not 66MHz capable.\n",
+				       current_bus, pci_devfn);
+				cap66 = 0;
+				break;
+			}
+		}
+	}
+	return cap66 > 0;
+}
+
+static struct resource primary_pci_mem_res[2] = {
+	{ .name = "PCI MEM" },
+	{ .name = "PCI MMIO" },
+};
+static struct resource primary_pci_io_res = { .name = "PCI IO" };
+struct pci_controller txx9_primary_pcic = {
+	.mem_resource = &primary_pci_mem_res[0],
+	.io_resource = &primary_pci_io_res,
+};
+
+#ifdef CONFIG_64BIT
+int txx9_pci_mem_high __initdata = 1;
+#else
+int txx9_pci_mem_high __initdata;
+#endif
+
+/*
+ * allocate pci_controller and resources.
+ * mem_base, io_base: physical addresss.  0 for auto assignment.
+ * mem_size and io_size means max size on auto assignment.
+ * pcic must be &txx9_primary_pcic or NULL.
+ */
+struct pci_controller *__init
+txx9_alloc_pci_controller(struct pci_controller *pcic,
+			  unsigned long mem_base, unsigned long mem_size,
+			  unsigned long io_base, unsigned long io_size)
+{
+	struct pcic {
+		struct pci_controller c;
+		struct resource r_mem[2];
+		struct resource r_io;
+	} *new = NULL;
+	int min_size = 0x10000;
+
+	if (!pcic) {
+		new = kzalloc(sizeof(*new), GFP_KERNEL);
+		if (!new)
+			return NULL;
+		new->r_mem[0].name = "PCI mem";
+		new->r_mem[1].name = "PCI mmio";
+		new->r_io.name = "PCI io";
+		new->c.mem_resource = new->r_mem;
+		new->c.io_resource = &new->r_io;
+		pcic = &new->c;
+	} else
+		BUG_ON(pcic != &txx9_primary_pcic);
+	pcic->io_resource->flags = IORESOURCE_IO;
+
+	/*
+	 * for auto assignment, first search a (big) region for PCI
+	 * MEM, then search a region for PCI IO.
+	 */
+	if (mem_base) {
+		pcic->mem_resource[0].start = mem_base;
+		pcic->mem_resource[0].end = mem_base + mem_size - 1;
+		if (request_resource(&iomem_resource, &pcic->mem_resource[0]))
+			goto free_and_exit;
+	} else {
+		unsigned long min = 0, max = 0x20000000; /* low 512MB */
+		if (!mem_size) {
+			/* default size for auto assignment */
+			if (txx9_pci_mem_high)
+				mem_size = 0x20000000;	/* mem:512M(max) */
+			else
+				mem_size = 0x08000000;	/* mem:128M(max) */
+		}
+		if (txx9_pci_mem_high) {
+			min = 0x20000000;
+			max = 0xe0000000;
+		}
+		/* search free region for PCI MEM */
+		for (; mem_size >= min_size; mem_size /= 2) {
+			if (allocate_resource(&iomem_resource,
+					      &pcic->mem_resource[0],
+					      mem_size, min, max,
+					      mem_size, NULL, NULL) == 0)
+				break;
+		}
+		if (mem_size < min_size)
+			goto free_and_exit;
+	}
+
+	pcic->mem_resource[1].flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+	if (io_base) {
+		pcic->mem_resource[1].start = io_base;
+		pcic->mem_resource[1].end = io_base + io_size - 1;
+		if (request_resource(&iomem_resource, &pcic->mem_resource[1]))
+			goto release_and_exit;
+	} else {
+		if (!io_size)
+			/* default size for auto assignment */
+			io_size = 0x01000000;	/* io:16M(max) */
+		/* search free region for PCI IO in low 512MB */
+		for (; io_size >= min_size; io_size /= 2) {
+			if (allocate_resource(&iomem_resource,
+					      &pcic->mem_resource[1],
+					      io_size, 0, 0x20000000,
+					      io_size, NULL, NULL) == 0)
+				break;
+		}
+		if (io_size < min_size)
+			goto release_and_exit;
+		io_base = pcic->mem_resource[1].start;
+	}
+
+	pcic->mem_resource[0].flags = IORESOURCE_MEM;
+	if (pcic == &txx9_primary_pcic &&
+	    mips_io_port_base == (unsigned long)-1) {
+		/* map ioport 0 to PCI I/O space address 0 */
+		set_io_port_base(IO_BASE + pcic->mem_resource[1].start);
+		pcic->io_resource->start = 0;
+		pcic->io_offset = 0;	/* busaddr == ioaddr */
+		pcic->io_map_base = IO_BASE + pcic->mem_resource[1].start;
+	} else {
+		/* physaddr to ioaddr */
+		pcic->io_resource->start =
+			io_base - (mips_io_port_base - IO_BASE);
+		pcic->io_offset = io_base - (mips_io_port_base - IO_BASE);
+		pcic->io_map_base = mips_io_port_base;
+	}
+	pcic->io_resource->end = pcic->io_resource->start + io_size - 1;
+
+	pcic->mem_offset = 0;	/* busaddr == physaddr */
+
+	printk(KERN_INFO "PCI: IO 0x%08llx-0x%08llx MEM 0x%08llx-0x%08llx\n",
+	       (unsigned long long)pcic->mem_resource[1].start,
+	       (unsigned long long)pcic->mem_resource[1].end,
+	       (unsigned long long)pcic->mem_resource[0].start,
+	       (unsigned long long)pcic->mem_resource[0].end);
+
+	/* register_pci_controller() will request MEM resource */
+	release_resource(&pcic->mem_resource[0]);
+	return pcic;
+ release_and_exit:
+	release_resource(&pcic->mem_resource[0]);
+ free_and_exit:
+	kfree(new);
+	printk(KERN_ERR "PCI: Failed to allocate resources.\n");
+	return NULL;
+}
+
+static int __init
+txx9_arch_pci_init(void)
+{
+	PCIBIOS_MIN_IO = 0x8000;	/* reseve legacy I/O space */
+	return 0;
+}
+arch_initcall(txx9_arch_pci_init);
+
+/* IRQ/IDSEL mapping */
+int txx9_pci_option =
+#ifdef CONFIG_PICMG_PCI_BACKPLANE_DEFAULT
+	TXX9_PCI_OPT_PICMG |
+#endif
+	TXX9_PCI_OPT_CLK_AUTO;
+
+enum txx9_pci_err_action txx9_pci_err_action = TXX9_PCI_ERR_REPORT;
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+static irqreturn_t i8259_interrupt(int irq, void *dev_id)
+{
+	int isairq;
+
+	isairq = i8259_irq();
+	if (unlikely(isairq <= I8259A_IRQ_BASE))
+		return IRQ_NONE;
+	generic_handle_irq(isairq);
+	return IRQ_HANDLED;
+}
+
+static int __init
+txx9_i8259_irq_setup(int irq)
+{
+	int err;
+
+	init_i8259_irqs();
+	err = request_irq(irq, &i8259_interrupt, IRQF_DISABLED|IRQF_SHARED,
+			  "cascade(i8259)", (void *)(long)irq);
+	if (!err)
+		printk(KERN_INFO "PCI-ISA bridge PIC (irq %d)\n", irq);
+	return err;
+}
+
+static void __init quirk_slc90e66_bridge(struct pci_dev *dev)
+{
+	int irq;	/* PCI/ISA Bridge interrupt */
+	u8 reg_64;
+	u32 reg_b0;
+	u8 reg_e1;
+	irq = pcibios_map_irq(dev, PCI_SLOT(dev->devfn), 1); /* INTA */
+	if (!irq)
+		return;
+	txx9_i8259_irq_setup(irq);
+	pci_read_config_byte(dev, 0x64, &reg_64);
+	pci_read_config_dword(dev, 0xb0, &reg_b0);
+	pci_read_config_byte(dev, 0xe1, &reg_e1);
+	/* serial irq control */
+	reg_64 = 0xd0;
+	/* serial irq pin */
+	reg_b0 |= 0x00010000;
+	/* ide irq on isa14 */
+	reg_e1 &= 0xf0;
+	reg_e1 |= 0x0d;
+	pci_write_config_byte(dev, 0x64, reg_64);
+	pci_write_config_dword(dev, 0xb0, reg_b0);
+	pci_write_config_byte(dev, 0xe1, reg_e1);
+
+	smsc_fdc37m81x_init(0x3f0);
+	smsc_fdc37m81x_config_beg();
+	smsc_fdc37m81x_config_set(SMSC_FDC37M81X_DNUM,
+				  SMSC_FDC37M81X_KBD);
+	smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT, 1);
+	smsc_fdc37m81x_config_set(SMSC_FDC37M81X_INT2, 12);
+	smsc_fdc37m81x_config_set(SMSC_FDC37M81X_ACTIVE,
+				  1);
+	smsc_fdc37m81x_config_end();
+}
+
+static void quirk_slc90e66_ide(struct pci_dev *dev)
+{
+	unsigned char dat;
+	int regs[2] = {0x41, 0x43};
+	int i;
+
+	/* SMSC SLC90E66 IDE uses irq 14, 15 (default) */
+	pci_write_config_byte(dev, PCI_INTERRUPT_LINE, 14);
+	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &dat);
+	printk(KERN_INFO "PCI: %s: IRQ %02x", pci_name(dev), dat);
+	/* enable SMSC SLC90E66 IDE */
+	for (i = 0; i < ARRAY_SIZE(regs); i++) {
+		pci_read_config_byte(dev, regs[i], &dat);
+		pci_write_config_byte(dev, regs[i], dat | 0x80);
+		pci_read_config_byte(dev, regs[i], &dat);
+		printk(KERN_CONT " IDETIM%d %02x", i, dat);
+	}
+	pci_read_config_byte(dev, 0x5c, &dat);
+	/*
+	 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+	 *
+	 * This line of code is intended to provide the user with a work
+	 * around solution to the anomalies cited in SMSC's anomaly sheet
+	 * entitled, "SLC90E66 Functional Rev.J_0.1 Anomalies"".
+	 *
+	 * !!! DO NOT REMOVE THIS COMMENT IT IS REQUIRED BY SMSC !!!
+	 */
+	dat |= 0x01;
+	pci_write_config_byte(dev, regs[i], dat);
+	pci_read_config_byte(dev, 0x5c, &dat);
+	printk(KERN_CONT " REG5C %02x", dat);
+	printk(KERN_CONT "\n");
+}
+#endif /* CONFIG_TOSHIBA_FPCIB0 */
+
+static void final_fixup(struct pci_dev *dev)
+{
+	unsigned char bist;
+
+	/* Do build-in self test */
+	if (pci_read_config_byte(dev, PCI_BIST, &bist) == PCIBIOS_SUCCESSFUL &&
+	    (bist & PCI_BIST_CAPABLE)) {
+		unsigned long timeout;
+		pci_set_power_state(dev, PCI_D0);
+		printk(KERN_INFO "PCI: %s BIST...", pci_name(dev));
+		pci_write_config_byte(dev, PCI_BIST, PCI_BIST_START);
+		timeout = jiffies + HZ * 2;	/* timeout after 2 sec */
+		do {
+			pci_read_config_byte(dev, PCI_BIST, &bist);
+			if (time_after(jiffies, timeout))
+				break;
+		} while (bist & PCI_BIST_START);
+		if (bist & (PCI_BIST_CODE_MASK | PCI_BIST_START))
+			printk(KERN_CONT "failed. (0x%x)\n", bist);
+		else
+			printk(KERN_CONT "OK.\n");
+	}
+}
+
+#ifdef CONFIG_TOSHIBA_FPCIB0
+#define PCI_DEVICE_ID_EFAR_SLC90E66_0 0x9460
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_0,
+	quirk_slc90e66_bridge);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+	quirk_slc90e66_ide);
+DECLARE_PCI_FIXUP_RESUME(PCI_VENDOR_ID_EFAR, PCI_DEVICE_ID_EFAR_SLC90E66_1,
+	quirk_slc90e66_ide);
+#endif
+DECLARE_PCI_FIXUP_FINAL(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+DECLARE_PCI_FIXUP_RESUME(PCI_ANY_ID, PCI_ANY_ID, final_fixup);
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+	return 0;
+}
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+	return txx9_board_vec->pci_map_irq(dev, slot, pin);
+}
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
new file mode 100644
index 00000000000..5afc5d5cab0
--- /dev/null
+++ b/arch/mips/txx9/generic/setup.c
@@ -0,0 +1,212 @@
+/*
+ * linux/arch/mips/txx9/generic/setup.c
+ *
+ * Based on linux/arch/mips/txx9/rbtx4938/setup.c,
+ *	    and RBTX49xx patch from CELF patch archive.
+ *
+ * 2003-2005 (c) MontaVista Software, Inc.
+ * (C) Copyright TOSHIBA CORPORATION 2000-2001, 2004-2007
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/string.h>
+#include <linux/module.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#ifdef CONFIG_CPU_TX49XX
+#include <asm/txx9/tx4938.h>
+#endif
+
+/* EBUSC settings of TX4927, etc. */
+struct resource txx9_ce_res[8];
+static char txx9_ce_res_name[8][4];	/* "CEn" */
+
+/* pcode, internal register */
+char txx9_pcode_str[8];
+static struct resource txx9_reg_res = {
+	.name = txx9_pcode_str,
+	.flags = IORESOURCE_MEM,
+};
+void __init
+txx9_reg_res_init(unsigned int pcode, unsigned long base, unsigned long size)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(txx9_ce_res); i++) {
+		sprintf(txx9_ce_res_name[i], "CE%d", i);
+		txx9_ce_res[i].flags = IORESOURCE_MEM;
+		txx9_ce_res[i].name = txx9_ce_res_name[i];
+	}
+
+	sprintf(txx9_pcode_str, "TX%x", pcode);
+	if (base) {
+		txx9_reg_res.start = base & 0xfffffffffULL;
+		txx9_reg_res.end = (base & 0xfffffffffULL) + (size - 1);
+		request_resource(&iomem_resource, &txx9_reg_res);
+	}
+}
+
+/* clocks */
+unsigned int txx9_master_clock;
+unsigned int txx9_cpu_clock;
+unsigned int txx9_gbus_clock;
+
+
+/* Minimum CLK support */
+
+struct clk *clk_get(struct device *dev, const char *id)
+{
+	if (!strcmp(id, "spi-baseclk"))
+		return (struct clk *)(txx9_gbus_clock / 2 / 4);
+	if (!strcmp(id, "imbus_clk"))
+		return (struct clk *)(txx9_gbus_clock / 2);
+	return ERR_PTR(-ENOENT);
+}
+EXPORT_SYMBOL(clk_get);
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	return (unsigned long)clk;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+void clk_put(struct clk *clk)
+{
+}
+EXPORT_SYMBOL(clk_put);
+
+extern struct txx9_board_vec jmr3927_vec;
+extern struct txx9_board_vec rbtx4927_vec;
+extern struct txx9_board_vec rbtx4937_vec;
+extern struct txx9_board_vec rbtx4938_vec;
+
+struct txx9_board_vec *txx9_board_vec __initdata;
+static char txx9_system_type[32];
+
+void __init prom_init_cmdline(void)
+{
+	int argc = (int)fw_arg0;
+	char **argv = (char **)fw_arg1;
+	int i;			/* Always ignore the "-c" at argv[0] */
+
+	/* ignore all built-in args if any f/w args given */
+	if (argc > 1)
+		*arcs_cmdline = '\0';
+
+	for (i = 1; i < argc; i++) {
+		if (i != 1)
+			strcat(arcs_cmdline, " ");
+		strcat(arcs_cmdline, argv[i]);
+	}
+}
+
+void __init prom_init(void)
+{
+#ifdef CONFIG_CPU_TX39XX
+	txx9_board_vec = &jmr3927_vec;
+#endif
+#ifdef CONFIG_CPU_TX49XX
+	switch (TX4938_REV_PCODE()) {
+	case 0x4927:
+		txx9_board_vec = &rbtx4927_vec;
+		break;
+	case 0x4937:
+		txx9_board_vec = &rbtx4937_vec;
+		break;
+	case 0x4938:
+		txx9_board_vec = &rbtx4938_vec;
+		break;
+	}
+#endif
+
+	strcpy(txx9_system_type, txx9_board_vec->system);
+
+	txx9_board_vec->prom_init();
+}
+
+void __init prom_free_prom_memory(void)
+{
+}
+
+const char *get_system_type(void)
+{
+	return txx9_system_type;
+}
+
+char * __init prom_getcmdline(void)
+{
+	return &(arcs_cmdline[0]);
+}
+
+/* wrappers */
+void __init plat_mem_setup(void)
+{
+	txx9_board_vec->mem_setup();
+}
+
+void __init arch_init_irq(void)
+{
+	txx9_board_vec->irq_setup();
+}
+
+void __init plat_time_init(void)
+{
+	txx9_board_vec->time_init();
+}
+
+static int __init _txx9_arch_init(void)
+{
+	if (txx9_board_vec->arch_init)
+		txx9_board_vec->arch_init();
+	return 0;
+}
+arch_initcall(_txx9_arch_init);
+
+static int __init _txx9_device_init(void)
+{
+	if (txx9_board_vec->device_init)
+		txx9_board_vec->device_init();
+	return 0;
+}
+device_initcall(_txx9_device_init);
+
+int (*txx9_irq_dispatch)(int pending);
+asmlinkage void plat_irq_dispatch(void)
+{
+	int pending = read_c0_status() & read_c0_cause() & ST0_IM;
+	int irq = txx9_irq_dispatch(pending);
+
+	if (likely(irq >= 0))
+		do_IRQ(irq);
+	else
+		spurious_interrupt();
+}
+
+/* see include/asm-mips/mach-tx39xx/mangle-port.h, for example. */
+#ifdef NEEDS_TXX9_SWIZZLE_ADDR_B
+static unsigned long __swizzle_addr_none(unsigned long port)
+{
+	return port;
+}
+unsigned long (*__swizzle_addr_b)(unsigned long port) = __swizzle_addr_none;
+EXPORT_SYMBOL(__swizzle_addr_b);
+#endif
diff --git a/arch/mips/txx9/generic/smsc_fdc37m81x.c b/arch/mips/txx9/generic/smsc_fdc37m81x.c
new file mode 100644
index 00000000000..69e487467fa
--- /dev/null
+++ b/arch/mips/txx9/generic/smsc_fdc37m81x.c
@@ -0,0 +1,172 @@
+/*
+ * Interface for smsc fdc48m81x Super IO chip
+ *
+ * Author: MontaVista Software, Inc. source@mvista.com
+ *
+ * 2001-2003 (c) MontaVista Software, Inc. 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.
+ *
+ * Copyright 2004 (c) MontaVista Software, Inc.
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <asm/io.h>
+#include <asm/txx9/smsc_fdc37m81x.h>
+
+#define DEBUG
+
+/* Common Registers */
+#define SMSC_FDC37M81X_CONFIG_INDEX  0x00
+#define SMSC_FDC37M81X_CONFIG_DATA   0x01
+#define SMSC_FDC37M81X_CONF          0x02
+#define SMSC_FDC37M81X_INDEX         0x03
+#define SMSC_FDC37M81X_DNUM          0x07
+#define SMSC_FDC37M81X_DID           0x20
+#define SMSC_FDC37M81X_DREV          0x21
+#define SMSC_FDC37M81X_PCNT          0x22
+#define SMSC_FDC37M81X_PMGT          0x23
+#define SMSC_FDC37M81X_OSC           0x24
+#define SMSC_FDC37M81X_CONFPA0       0x26
+#define SMSC_FDC37M81X_CONFPA1       0x27
+#define SMSC_FDC37M81X_TEST4         0x2B
+#define SMSC_FDC37M81X_TEST5         0x2C
+#define SMSC_FDC37M81X_TEST1         0x2D
+#define SMSC_FDC37M81X_TEST2         0x2E
+#define SMSC_FDC37M81X_TEST3         0x2F
+
+/* Logical device numbers */
+#define SMSC_FDC37M81X_FDD           0x00
+#define SMSC_FDC37M81X_SERIAL1       0x04
+#define SMSC_FDC37M81X_SERIAL2       0x05
+#define SMSC_FDC37M81X_KBD           0x07
+
+/* Logical device Config Registers */
+#define SMSC_FDC37M81X_ACTIVE        0x30
+#define SMSC_FDC37M81X_BASEADDR0     0x60
+#define SMSC_FDC37M81X_BASEADDR1     0x61
+#define SMSC_FDC37M81X_INT           0x70
+#define SMSC_FDC37M81X_INT2          0x72
+#define SMSC_FDC37M81X_MODE          0xF0
+
+/* Chip Config Values */
+#define SMSC_FDC37M81X_CONFIG_ENTER  0x55
+#define SMSC_FDC37M81X_CONFIG_EXIT   0xaa
+#define SMSC_FDC37M81X_CHIP_ID       0x4d
+
+static unsigned long g_smsc_fdc37m81x_base = 0;
+
+static inline unsigned char smsc_fdc37m81x_rd(unsigned char index)
+{
+	outb(index, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+
+	return inb(g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_DATA);
+}
+
+static inline void smsc_dc37m81x_wr(unsigned char index, unsigned char data)
+{
+	outb(index, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+	outb(data, g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_DATA);
+}
+
+void smsc_fdc37m81x_config_beg(void)
+{
+	if (g_smsc_fdc37m81x_base) {
+		outb(SMSC_FDC37M81X_CONFIG_ENTER,
+		     g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+	}
+}
+
+void smsc_fdc37m81x_config_end(void)
+{
+	if (g_smsc_fdc37m81x_base)
+		outb(SMSC_FDC37M81X_CONFIG_EXIT,
+		     g_smsc_fdc37m81x_base + SMSC_FDC37M81X_CONFIG_INDEX);
+}
+
+u8 smsc_fdc37m81x_config_get(u8 reg)
+{
+	u8 val = 0;
+
+	if (g_smsc_fdc37m81x_base)
+		val = smsc_fdc37m81x_rd(reg);
+
+	return val;
+}
+
+void smsc_fdc37m81x_config_set(u8 reg, u8 val)
+{
+	if (g_smsc_fdc37m81x_base)
+		smsc_dc37m81x_wr(reg, val);
+}
+
+unsigned long __init smsc_fdc37m81x_init(unsigned long port)
+{
+	const int field = sizeof(unsigned long) * 2;
+	u8 chip_id;
+
+	if (g_smsc_fdc37m81x_base)
+		printk("smsc_fdc37m81x_init() stepping on old base=0x%0*lx\n",
+		       field, g_smsc_fdc37m81x_base);
+
+	g_smsc_fdc37m81x_base = port;
+
+	smsc_fdc37m81x_config_beg();
+
+	chip_id = smsc_fdc37m81x_rd(SMSC_FDC37M81X_DID);
+	if (chip_id == SMSC_FDC37M81X_CHIP_ID)
+		smsc_fdc37m81x_config_end();
+	else {
+		printk("smsc_fdc37m81x_init() unknow chip id 0x%02x\n",
+		       chip_id);
+		g_smsc_fdc37m81x_base = 0;
+	}
+
+	return g_smsc_fdc37m81x_base;
+}
+
+#ifdef DEBUG
+void smsc_fdc37m81x_config_dump_one(char *key, u8 dev, u8 reg)
+{
+	printk("%s: dev=0x%02x reg=0x%02x val=0x%02x\n", key, dev, reg,
+	       smsc_fdc37m81x_rd(reg));
+}
+
+void smsc_fdc37m81x_config_dump(void)
+{
+	u8 orig;
+	char *fname = "smsc_fdc37m81x_config_dump()";
+
+	smsc_fdc37m81x_config_beg();
+
+	orig = smsc_fdc37m81x_rd(SMSC_FDC37M81X_DNUM);
+
+	printk("%s: common\n", fname);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+				       SMSC_FDC37M81X_DNUM);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+				       SMSC_FDC37M81X_DID);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+				       SMSC_FDC37M81X_DREV);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+				       SMSC_FDC37M81X_PCNT);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_NONE,
+				       SMSC_FDC37M81X_PMGT);
+
+	printk("%s: keyboard\n", fname);
+	smsc_dc37m81x_wr(SMSC_FDC37M81X_DNUM, SMSC_FDC37M81X_KBD);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+				       SMSC_FDC37M81X_ACTIVE);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+				       SMSC_FDC37M81X_INT);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+				       SMSC_FDC37M81X_INT2);
+	smsc_fdc37m81x_config_dump_one(fname, SMSC_FDC37M81X_KBD,
+				       SMSC_FDC37M81X_LDCR_F0);
+
+	smsc_dc37m81x_wr(SMSC_FDC37M81X_DNUM, orig);
+
+	smsc_fdc37m81x_config_end();
+}
+#endif
diff --git a/arch/mips/txx9/jmr3927/Makefile b/arch/mips/txx9/jmr3927/Makefile
new file mode 100644
index 00000000000..ba292c94566
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/Makefile
@@ -0,0 +1,8 @@
+#
+# Makefile for TOSHIBA JMR-TX3927 board
+#
+
+obj-y	+= prom.o irq.o setup.o
+obj-$(CONFIG_KGDB)	+= kgdb_io.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/jmr3927/irq.c b/arch/mips/txx9/jmr3927/irq.c
new file mode 100644
index 00000000000..070c9a115e5
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/irq.c
@@ -0,0 +1,171 @@
+/*
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ *  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 the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/sched.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/system.h>
+
+#include <asm/processor.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/jmr3927.h>
+
+#if JMR3927_IRQ_END > NR_IRQS
+#error JMR3927_IRQ_END > NR_IRQS
+#endif
+
+static unsigned char irc_level[TX3927_NUM_IR] = {
+	5, 5, 5, 5, 5, 5,	/* INT[5:0] */
+	7, 7,			/* SIO */
+	5, 5, 5, 0, 0,		/* DMA, PIO, PCI */
+	6, 6, 6			/* TMR */
+};
+
+/*
+ * CP0_STATUS is a thread's resource (saved/restored on context switch).
+ * So disable_irq/enable_irq MUST handle IOC/IRC registers.
+ */
+static void mask_irq_ioc(unsigned int irq)
+{
+	/* 0: mask */
+	unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+	unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
+	unsigned int bit = 1 << irq_nr;
+	jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR);
+	/* flush write buffer */
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
+}
+static void unmask_irq_ioc(unsigned int irq)
+{
+	/* 0: mask */
+	unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
+	unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
+	unsigned int bit = 1 << irq_nr;
+	jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR);
+	/* flush write buffer */
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
+}
+
+static int jmr3927_ioc_irqroute(void)
+{
+	unsigned char istat = jmr3927_ioc_reg_in(JMR3927_IOC_INTS2_ADDR);
+	int i;
+
+	for (i = 0; i < JMR3927_NR_IRQ_IOC; i++) {
+		if (istat & (1 << i))
+			return JMR3927_IRQ_IOC + i;
+	}
+	return -1;
+}
+
+static int jmr3927_irq_dispatch(int pending)
+{
+	int irq;
+
+	if ((pending & CAUSEF_IP7) == 0)
+		return -1;
+	irq = (pending >> CAUSEB_IP2) & 0x0f;
+	irq += JMR3927_IRQ_IRC;
+	if (irq == JMR3927_IRQ_IOCINT)
+		irq = jmr3927_ioc_irqroute();
+	return irq;
+}
+
+#ifdef CONFIG_PCI
+static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
+{
+	printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
+	printk(KERN_WARNING "pcistat:%02x, lbstat:%04lx\n",
+	       tx3927_pcicptr->pcistat, tx3927_pcicptr->lbstat);
+
+	return IRQ_HANDLED;
+}
+static struct irqaction pcierr_action = {
+	.handler = jmr3927_pcierr_interrupt,
+	.mask = CPU_MASK_NONE,
+	.name = "PCI error",
+};
+#endif
+
+static void __init jmr3927_irq_init(void);
+
+void __init jmr3927_irq_setup(void)
+{
+	txx9_irq_dispatch = jmr3927_irq_dispatch;
+	/* Now, interrupt control disabled, */
+	/* all IRC interrupts are masked, */
+	/* all IRC interrupt mode are Low Active. */
+
+	/* mask all IOC interrupts */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_INTM_ADDR);
+	/* setup IOC interrupt mode (SOFT:High Active, Others:Low Active) */
+	jmr3927_ioc_reg_out(JMR3927_IOC_INTF_SOFT, JMR3927_IOC_INTP_ADDR);
+
+	/* clear PCI Soft interrupts */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_INTS1_ADDR);
+	/* clear PCI Reset interrupts */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+
+	jmr3927_irq_init();
+
+	/* setup IOC interrupt 1 (PCI, MODEM) */
+	set_irq_chained_handler(JMR3927_IRQ_IOCINT, handle_simple_irq);
+
+#ifdef CONFIG_PCI
+	setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
+#endif
+
+	/* enable all CPU interrupt bits. */
+	set_c0_status(ST0_IM);	/* IE bit is still 0. */
+}
+
+static struct irq_chip jmr3927_irq_ioc = {
+	.name = "jmr3927_ioc",
+	.ack = mask_irq_ioc,
+	.mask = mask_irq_ioc,
+	.mask_ack = mask_irq_ioc,
+	.unmask = unmask_irq_ioc,
+};
+
+static void __init jmr3927_irq_init(void)
+{
+	u32 i;
+
+	txx9_irq_init(TX3927_IRC_REG);
+	for (i = 0; i < TXx9_MAX_IR; i++)
+		txx9_irq_set_pri(i, irc_level[i]);
+	for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++)
+		set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq);
+}
diff --git a/arch/mips/txx9/jmr3927/kgdb_io.c b/arch/mips/txx9/jmr3927/kgdb_io.c
new file mode 100644
index 00000000000..5bd757e56f7
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/kgdb_io.c
@@ -0,0 +1,105 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *	Low level uart routines to directly access a TX[34]927 SIO.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *         	ahennessy@mvista.com or source@mvista.com
+ *
+ * Based on arch/mips/ddb5xxx/ddb5477/kgdb_io.c
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ *  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 the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <asm/txx9/jmr3927.h>
+
+#define TIMEOUT       0xffffff
+
+static int remoteDebugInitialized = 0;
+static void debugInit(int baud);
+
+int putDebugChar(unsigned char c)
+{
+        int i = 0;
+
+	if (!remoteDebugInitialized) {
+		remoteDebugInitialized = 1;
+		debugInit(38400);
+	}
+
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (!(tx3927_sioptr(0)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(0)->tfifo = c;
+
+	return 1;
+}
+
+unsigned char getDebugChar(void)
+{
+        int i = 0;
+	int dicr;
+	char c;
+
+	if (!remoteDebugInitialized) {
+		remoteDebugInitialized = 1;
+		debugInit(38400);
+	}
+
+	/* diable RX int. */
+	dicr = tx3927_sioptr(0)->dicr;
+	tx3927_sioptr(0)->dicr = 0;
+
+        do {
+            slow_down();
+            i++;
+            if (i>TIMEOUT) {
+                break;
+            }
+        } while (tx3927_sioptr(0)->disr & TXx927_SIDISR_UVALID)
+		;
+	c = tx3927_sioptr(0)->rfifo;
+
+	/* clear RX int. status */
+	tx3927_sioptr(0)->disr &= ~TXx927_SIDISR_RDIS;
+	/* enable RX int. */
+	tx3927_sioptr(0)->dicr = dicr;
+
+	return c;
+}
+
+static void debugInit(int baud)
+{
+	tx3927_sioptr(0)->lcr = 0x020;
+	tx3927_sioptr(0)->dicr = 0;
+	tx3927_sioptr(0)->disr = 0x4100;
+	tx3927_sioptr(0)->cisr = 0x014;
+	tx3927_sioptr(0)->fcr = 0;
+	tx3927_sioptr(0)->flcr = 0x02;
+	tx3927_sioptr(0)->bgr = ((JMR3927_BASE_BAUD + baud / 2) / baud) |
+		TXx927_SIBGR_BCLK_T0;
+}
diff --git a/arch/mips/txx9/jmr3927/prom.c b/arch/mips/txx9/jmr3927/prom.c
new file mode 100644
index 00000000000..2cadb423fac
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/prom.c
@@ -0,0 +1,76 @@
+/*
+ * BRIEF MODULE DESCRIPTION
+ *    PROM library initialisation code, assuming a version of
+ *    pmon is the boot code.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Based on arch/mips/au1000/common/prom.c
+ *
+ * This file was derived from Carsten Langgaard's
+ * arch/mips/mips-boards/xx files.
+ *
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999,2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ *  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 the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/jmr3927.h>
+
+#define TIMEOUT       0xffffff
+
+void
+prom_putchar(char c)
+{
+        int i = 0;
+
+        do {
+            i++;
+            if (i>TIMEOUT)
+                break;
+        } while (!(tx3927_sioptr(1)->cisr & TXx927_SICISR_TXALS));
+	tx3927_sioptr(1)->tfifo = c;
+	return;
+}
+
+void
+puts(const char *cp)
+{
+    while (*cp)
+	prom_putchar(*cp++);
+    prom_putchar('\r');
+    prom_putchar('\n');
+}
+
+void __init jmr3927_prom_init(void)
+{
+	/* CCFG */
+	if ((tx3927_ccfgptr->ccfg & TX3927_CCFG_TLBOFF) == 0)
+		puts("Warning: TX3927 TLB off\n");
+
+	prom_init_cmdline();
+	add_memory_region(0, JMR3927_SDRAM_SIZE, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/jmr3927/setup.c b/arch/mips/txx9/jmr3927/setup.c
new file mode 100644
index 00000000000..5e35ef73c5a
--- /dev/null
+++ b/arch/mips/txx9/jmr3927/setup.c
@@ -0,0 +1,375 @@
+/*
+ *  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 the
+ *  Free Software Foundation;  either version 2 of the  License, or (at your
+ *  option) any later version.
+ *
+ *  THIS  SOFTWARE  IS PROVIDED   ``AS  IS'' AND   ANY  EXPRESS OR IMPLIED
+ *  WARRANTIES,   INCLUDING, BUT NOT  LIMITED  TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
+ *  NO  EVENT  SHALL   THE AUTHOR  BE    LIABLE FOR ANY   DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ *  NOT LIMITED   TO, PROCUREMENT OF  SUBSTITUTE GOODS  OR SERVICES; LOSS OF
+ *  USE, DATA,  OR PROFITS; OR  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ *  ANY THEORY OF LIABILITY, WHETHER IN  CONTRACT, STRICT LIABILITY, OR TORT
+ *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the  GNU General Public License along
+ *  with this program; if not, write  to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: MontaVista Software, Inc.
+ *              ahennessy@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ * Copyright (C) 2007 Ralf Baechle (ralf@linux-mips.org)
+ */
+
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+#include <asm/txx9tmr.h>
+#include <asm/txx9pio.h>
+#include <asm/reboot.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/jmr3927.h>
+#include <asm/mipsregs.h>
+
+extern void puts(const char *cp);
+
+/* don't enable - see errata */
+static int jmr3927_ccfg_toeon;
+
+static inline void do_reset(void)
+{
+#if 1	/* Resetting PCI bus */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI, JMR3927_IOC_RESET_ADDR);
+	(void)jmr3927_ioc_reg_in(JMR3927_IOC_RESET_ADDR);	/* flush WB */
+	mdelay(1);
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+#endif
+	jmr3927_ioc_reg_out(JMR3927_IOC_RESET_CPU, JMR3927_IOC_RESET_ADDR);
+}
+
+static void jmr3927_machine_restart(char *command)
+{
+	local_irq_disable();
+	puts("Rebooting...");
+	do_reset();
+}
+
+static void jmr3927_machine_halt(void)
+{
+	puts("JMR-TX3927 halted.\n");
+	while (1);
+}
+
+static void jmr3927_machine_power_off(void)
+{
+	puts("JMR-TX3927 halted. Please turn off the power.\n");
+	while (1);
+}
+
+static void __init jmr3927_time_init(void)
+{
+	txx9_clockevent_init(TX3927_TMR_REG(0),
+			     TXX9_IRQ_BASE + JMR3927_IRQ_IRC_TMR(0),
+			     JMR3927_IMCLK);
+	txx9_clocksource_init(TX3927_TMR_REG(1), JMR3927_IMCLK);
+}
+
+#define DO_WRITE_THROUGH
+#define DO_ENABLE_CACHE
+
+static void jmr3927_board_init(void);
+
+static void __init jmr3927_mem_setup(void)
+{
+	char *argptr;
+
+	set_io_port_base(JMR3927_PORT_BASE + JMR3927_PCIIO);
+
+	_machine_restart = jmr3927_machine_restart;
+	_machine_halt = jmr3927_machine_halt;
+	pm_power_off = jmr3927_machine_power_off;
+
+	/*
+	 * IO/MEM resources.
+	 */
+	ioport_resource.start = 0;
+	ioport_resource.end = 0xffffffff;
+	iomem_resource.start = 0;
+	iomem_resource.end = 0xffffffff;
+
+	/* Reboot on panic */
+	panic_timeout = 180;
+
+	/* cache setup */
+	{
+		unsigned int conf;
+#ifdef DO_ENABLE_CACHE
+		int mips_ic_disable = 0, mips_dc_disable = 0;
+#else
+		int mips_ic_disable = 1, mips_dc_disable = 1;
+#endif
+#ifdef DO_WRITE_THROUGH
+		int mips_config_cwfon = 0;
+		int mips_config_wbon = 0;
+#else
+		int mips_config_cwfon = 1;
+		int mips_config_wbon = 1;
+#endif
+
+		conf = read_c0_conf();
+		conf &= ~(TX39_CONF_ICE | TX39_CONF_DCE | TX39_CONF_WBON | TX39_CONF_CWFON);
+		conf |= mips_ic_disable ? 0 : TX39_CONF_ICE;
+		conf |= mips_dc_disable ? 0 : TX39_CONF_DCE;
+		conf |= mips_config_wbon ? TX39_CONF_WBON : 0;
+		conf |= mips_config_cwfon ? TX39_CONF_CWFON : 0;
+
+		write_c0_conf(conf);
+		write_c0_cache(0);
+	}
+
+	/* initialize board */
+	jmr3927_board_init();
+
+	argptr = prom_getcmdline();
+
+	if ((argptr = strstr(argptr, "toeon")) != NULL)
+		jmr3927_ccfg_toeon = 1;
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "ip=")) == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " ip=bootp");
+	}
+
+#ifdef CONFIG_SERIAL_TXX9
+	{
+		extern int early_serial_txx9_setup(struct uart_port *port);
+		int i;
+		struct uart_port req;
+		for(i = 0; i < 2; i++) {
+			memset(&req, 0, sizeof(req));
+			req.line = i;
+			req.iotype = UPIO_MEM;
+			req.membase = (unsigned char __iomem *)TX3927_SIO_REG(i);
+			req.mapbase = TX3927_SIO_REG(i);
+			req.irq = i == 0 ?
+				JMR3927_IRQ_IRC_SIO0 : JMR3927_IRQ_IRC_SIO1;
+			if (i == 0)
+				req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+			req.uartclk = JMR3927_IMCLK;
+			early_serial_txx9_setup(&req);
+		}
+	}
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+	argptr = prom_getcmdline();
+	if ((argptr = strstr(argptr, "console=")) == NULL) {
+		argptr = prom_getcmdline();
+		strcat(argptr, " console=ttyS1,115200");
+	}
+#endif
+#endif
+}
+
+static void tx3927_setup(void);
+
+static void __init jmr3927_pci_setup(void)
+{
+#ifdef CONFIG_PCI
+	int extarb = !(tx3927_ccfgptr->ccfg & TX3927_CCFG_PCIXARB);
+	struct pci_controller *c;
+
+	c = txx9_alloc_pci_controller(&txx9_primary_pcic,
+				      JMR3927_PCIMEM, JMR3927_PCIMEM_SIZE,
+				      JMR3927_PCIIO, JMR3927_PCIIO_SIZE);
+	register_pci_controller(c);
+	if (!extarb) {
+		/* Reset PCI Bus */
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(JMR3927_IOC_RESET_PCI,
+				    JMR3927_IOC_RESET_ADDR);
+		udelay(100);
+		jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
+	}
+	tx3927_pcic_setup(c, JMR3927_SDRAM_SIZE, extarb);
+#endif /* CONFIG_PCI */
+}
+
+static void __init jmr3927_board_init(void)
+{
+	tx3927_setup();
+	jmr3927_pci_setup();
+
+	/* SIO0 DTR on */
+	jmr3927_ioc_reg_out(0, JMR3927_IOC_DTR_ADDR);
+
+	jmr3927_led_set(0);
+
+	printk("JMR-TX3927 (Rev %d) --- IOC(Rev %d) DIPSW:%d,%d,%d,%d\n",
+	       jmr3927_ioc_reg_in(JMR3927_IOC_BREV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR) & JMR3927_REV_MASK,
+	       jmr3927_dipsw1(), jmr3927_dipsw2(),
+	       jmr3927_dipsw3(), jmr3927_dipsw4());
+}
+
+static void __init tx3927_setup(void)
+{
+	int i;
+
+	txx9_cpu_clock = JMR3927_CORECLK;
+	txx9_gbus_clock = JMR3927_GBUSCLK;
+	/* SDRAMC are configured by PROM */
+
+	/* ROMC */
+	tx3927_romcptr->cr[1] = JMR3927_ROMCE1 | 0x00030048;
+	tx3927_romcptr->cr[2] = JMR3927_ROMCE2 | 0x000064c8;
+	tx3927_romcptr->cr[3] = JMR3927_ROMCE3 | 0x0003f698;
+	tx3927_romcptr->cr[5] = JMR3927_ROMCE5 | 0x0000f218;
+
+	/* CCFG */
+	/* enable Timeout BusError */
+	if (jmr3927_ccfg_toeon)
+		tx3927_ccfgptr->ccfg |= TX3927_CCFG_TOE;
+
+	/* clear BusErrorOnWrite flag */
+	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_BEOW;
+	/* Disable PCI snoop */
+	tx3927_ccfgptr->ccfg &= ~TX3927_CCFG_PSNP;
+	/* do reset on watchdog */
+	tx3927_ccfgptr->ccfg |= TX3927_CCFG_WR;
+
+#ifdef DO_WRITE_THROUGH
+	/* Enable PCI SNOOP - with write through only */
+	tx3927_ccfgptr->ccfg |= TX3927_CCFG_PSNP;
+#endif
+
+	/* Pin selection */
+	tx3927_ccfgptr->pcfg &= ~TX3927_PCFG_SELALL;
+	tx3927_ccfgptr->pcfg |=
+		TX3927_PCFG_SELSIOC(0) | TX3927_PCFG_SELSIO_ALL |
+		(TX3927_PCFG_SELDMA_ALL & ~TX3927_PCFG_SELDMA(1));
+
+	printk("TX3927 -- CRIR:%08lx CCFG:%08lx PCFG:%08lx\n",
+	       tx3927_ccfgptr->crir,
+	       tx3927_ccfgptr->ccfg, tx3927_ccfgptr->pcfg);
+
+	/* TMR */
+	for (i = 0; i < TX3927_NR_TMR; i++)
+		txx9_tmr_init(TX3927_TMR_REG(i));
+
+	/* DMA */
+	tx3927_dmaptr->mcr = 0;
+	for (i = 0; i < ARRAY_SIZE(tx3927_dmaptr->ch); i++) {
+		/* reset channel */
+		tx3927_dmaptr->ch[i].ccr = TX3927_DMA_CCR_CHRST;
+		tx3927_dmaptr->ch[i].ccr = 0;
+	}
+	/* enable DMA */
+#ifdef __BIG_ENDIAN
+	tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN;
+#else
+	tx3927_dmaptr->mcr = TX3927_DMA_MCR_MSTEN | TX3927_DMA_MCR_LE;
+#endif
+
+	/* PIO */
+	/* PIO[15:12] connected to LEDs */
+	__raw_writel(0x0000f000, &tx3927_pioptr->dir);
+	__raw_writel(0, &tx3927_pioptr->maskcpu);
+	__raw_writel(0, &tx3927_pioptr->maskext);
+	txx9_gpio_init(TX3927_PIO_REG, 0, 16);
+	gpio_request(11, "dipsw1");
+	gpio_request(10, "dipsw2");
+	{
+		unsigned int conf;
+
+	conf = read_c0_conf();
+               if (!(conf & TX39_CONF_ICE))
+                       printk("TX3927 I-Cache disabled.\n");
+               if (!(conf & TX39_CONF_DCE))
+                       printk("TX3927 D-Cache disabled.\n");
+               else if (!(conf & TX39_CONF_WBON))
+                       printk("TX3927 D-Cache WriteThrough.\n");
+               else if (!(conf & TX39_CONF_CWFON))
+                       printk("TX3927 D-Cache WriteBack.\n");
+               else
+                       printk("TX3927 D-Cache WriteBack (CWF) .\n");
+	}
+}
+
+/* This trick makes rtc-ds1742 driver usable as is. */
+static unsigned long jmr3927_swizzle_addr_b(unsigned long port)
+{
+	if ((port & 0xffff0000) != JMR3927_IOC_NVRAMB_ADDR)
+		return port;
+	port = (port & 0xffff0000) | (port & 0x7fff << 1);
+#ifdef __BIG_ENDIAN
+	return port;
+#else
+	return port | 1;
+#endif
+}
+
+static int __init jmr3927_rtc_init(void)
+{
+	static struct resource __initdata res = {
+		.start	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE,
+		.end	= JMR3927_IOC_NVRAMB_ADDR - IO_BASE + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev;
+	dev = platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init jmr3927_wdt_init(void)
+{
+	return txx9_wdt_init(TX3927_TMR_REG(2));
+}
+
+static void __init jmr3927_device_init(void)
+{
+	__swizzle_addr_b = jmr3927_swizzle_addr_b;
+	jmr3927_rtc_init();
+	jmr3927_wdt_init();
+}
+
+struct txx9_board_vec jmr3927_vec __initdata = {
+	.system = "Toshiba JMR_TX3927",
+	.prom_init = jmr3927_prom_init,
+	.mem_setup = jmr3927_mem_setup,
+	.irq_setup = jmr3927_irq_setup,
+	.time_init = jmr3927_time_init,
+	.device_init = jmr3927_device_init,
+#ifdef CONFIG_PCI
+	.pci_map_irq = jmr3927_pci_map_irq,
+#endif
+};
diff --git a/arch/mips/txx9/rbtx4927/Makefile b/arch/mips/txx9/rbtx4927/Makefile
new file mode 100644
index 00000000000..f3e1f597b4f
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/Makefile
@@ -0,0 +1,3 @@
+obj-y	+= prom.o setup.o irq.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/rbtx4927/irq.c b/arch/mips/txx9/rbtx4927/irq.c
new file mode 100644
index 00000000000..70f13211bc2
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/irq.c
@@ -0,0 +1,199 @@
+/*
+ * Toshiba RBTX4927 specific interrupt handlers
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ *  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 the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/*
+IRQ  Device
+00   RBTX4927-ISA/00
+01   RBTX4927-ISA/01 PS2/Keyboard
+02   RBTX4927-ISA/02 Cascade RBTX4927-ISA (irqs 8-15)
+03   RBTX4927-ISA/03
+04   RBTX4927-ISA/04
+05   RBTX4927-ISA/05
+06   RBTX4927-ISA/06
+07   RBTX4927-ISA/07
+08   RBTX4927-ISA/08
+09   RBTX4927-ISA/09
+10   RBTX4927-ISA/10
+11   RBTX4927-ISA/11
+12   RBTX4927-ISA/12 PS2/Mouse (not supported at this time)
+13   RBTX4927-ISA/13
+14   RBTX4927-ISA/14 IDE
+15   RBTX4927-ISA/15
+
+16   TX4927-CP0/00 Software 0
+17   TX4927-CP0/01 Software 1
+18   TX4927-CP0/02 Cascade TX4927-CP0
+19   TX4927-CP0/03 Multiplexed -- do not use
+20   TX4927-CP0/04 Multiplexed -- do not use
+21   TX4927-CP0/05 Multiplexed -- do not use
+22   TX4927-CP0/06 Multiplexed -- do not use
+23   TX4927-CP0/07 CPU TIMER
+
+24   TX4927-PIC/00
+25   TX4927-PIC/01
+26   TX4927-PIC/02
+27   TX4927-PIC/03 Cascade RBTX4927-IOC
+28   TX4927-PIC/04
+29   TX4927-PIC/05 RBTX4927 RTL-8019AS ethernet
+30   TX4927-PIC/06
+31   TX4927-PIC/07
+32   TX4927-PIC/08 TX4927 SerialIO Channel 0
+33   TX4927-PIC/09 TX4927 SerialIO Channel 1
+34   TX4927-PIC/10
+35   TX4927-PIC/11
+36   TX4927-PIC/12
+37   TX4927-PIC/13
+38   TX4927-PIC/14
+39   TX4927-PIC/15
+40   TX4927-PIC/16 TX4927 PCI PCI-C
+41   TX4927-PIC/17
+42   TX4927-PIC/18
+43   TX4927-PIC/19
+44   TX4927-PIC/20
+45   TX4927-PIC/21
+46   TX4927-PIC/22 TX4927 PCI PCI-ERR
+47   TX4927-PIC/23 TX4927 PCI PCI-PMA (not used)
+48   TX4927-PIC/24
+49   TX4927-PIC/25
+50   TX4927-PIC/26
+51   TX4927-PIC/27
+52   TX4927-PIC/28
+53   TX4927-PIC/29
+54   TX4927-PIC/30
+55   TX4927-PIC/31
+
+56 RBTX4927-IOC/00 FPCIB0 PCI-D PJ4/A PJ5/B SB/C PJ6/D PJ7/A (SouthBridge/NotUsed)        [RTL-8139=PJ4]
+57 RBTX4927-IOC/01 FPCIB0 PCI-C PJ4/D PJ5/A SB/B PJ6/C PJ7/D (SouthBridge/NotUsed)        [RTL-8139=PJ5]
+58 RBTX4927-IOC/02 FPCIB0 PCI-B PJ4/C PJ5/D SB/A PJ6/B PJ7/C (SouthBridge/IDE/pin=1,INTR) [RTL-8139=NotSupported]
+59 RBTX4927-IOC/03 FPCIB0 PCI-A PJ4/B PJ5/C SB/D PJ6/A PJ7/B (SouthBridge/USB/pin=4)      [RTL-8139=PJ6]
+60 RBTX4927-IOC/04
+61 RBTX4927-IOC/05
+62 RBTX4927-IOC/06
+63 RBTX4927-IOC/07
+
+NOTES:
+SouthBridge/INTR is mapped to SouthBridge/A=PCI-B/#58
+SouthBridge/ISA/pin=0 no pci irq used by this device
+SouthBridge/IDE/pin=1 no pci irq used by this device, using INTR via ISA IRQ14
+SouthBridge/USB/pin=4 using pci irq SouthBridge/D=PCI-A=#59
+SouthBridge/PMC/pin=0 no pci irq used by this device
+SuperIO/PS2/Keyboard, using INTR via ISA IRQ1
+SuperIO/PS2/Mouse, using INTR via ISA IRQ12 (mouse not currently supported)
+JP7 is not bus master -- do NOT use -- only 4 pci bus master's allowed -- SouthBridge, JP4, JP5, JP6
+*/
+
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <asm/io.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4927.h>
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq);
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq);
+
+#define TOSHIBA_RBTX4927_IOC_NAME "RBTX4927-IOC"
+static struct irq_chip toshiba_rbtx4927_irq_ioc_type = {
+	.name = TOSHIBA_RBTX4927_IOC_NAME,
+	.ack = toshiba_rbtx4927_irq_ioc_disable,
+	.mask = toshiba_rbtx4927_irq_ioc_disable,
+	.mask_ack = toshiba_rbtx4927_irq_ioc_disable,
+	.unmask = toshiba_rbtx4927_irq_ioc_enable,
+};
+#define TOSHIBA_RBTX4927_IOC_INTR_ENAB (void __iomem *)0xbc002000UL
+#define TOSHIBA_RBTX4927_IOC_INTR_STAT (void __iomem *)0xbc002006UL
+
+static int toshiba_rbtx4927_irq_nested(int sw_irq)
+{
+	u8 level3;
+
+	level3 = readb(TOSHIBA_RBTX4927_IOC_INTR_STAT) & 0x1f;
+	if (level3)
+		sw_irq = RBTX4927_IRQ_IOC + fls(level3) - 1;
+	return (sw_irq);
+}
+
+static void __init toshiba_rbtx4927_irq_ioc_init(void)
+{
+	int i;
+
+	for (i = RBTX4927_IRQ_IOC;
+	     i < RBTX4927_IRQ_IOC + RBTX4927_NR_IRQ_IOC; i++)
+		set_irq_chip_and_handler(i, &toshiba_rbtx4927_irq_ioc_type,
+					 handle_level_irq);
+	set_irq_chained_handler(RBTX4927_IRQ_IOCINT, handle_simple_irq);
+}
+
+static void toshiba_rbtx4927_irq_ioc_enable(unsigned int irq)
+{
+	unsigned char v;
+
+	v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+	v |= (1 << (irq - RBTX4927_IRQ_IOC));
+	writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+}
+
+static void toshiba_rbtx4927_irq_ioc_disable(unsigned int irq)
+{
+	unsigned char v;
+
+	v = readb(TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+	v &= ~(1 << (irq - RBTX4927_IRQ_IOC));
+	writeb(v, TOSHIBA_RBTX4927_IOC_INTR_ENAB);
+	mmiowb();
+}
+
+
+static int rbtx4927_irq_dispatch(int pending)
+{
+	int irq;
+
+	if (pending & STATUSF_IP7)			/* cpu timer */
+		irq = MIPS_CPU_IRQ_BASE + 7;
+	else if (pending & STATUSF_IP2) {		/* tx4927 pic */
+		irq = txx9_irq();
+		if (irq == RBTX4927_IRQ_IOCINT)
+			irq = toshiba_rbtx4927_irq_nested(irq);
+	} else if (pending & STATUSF_IP0)		/* user line 0 */
+		irq = MIPS_CPU_IRQ_BASE + 0;
+	else if (pending & STATUSF_IP1)			/* user line 1 */
+		irq = MIPS_CPU_IRQ_BASE + 1;
+	else
+		irq = -1;
+	return irq;
+}
+
+void __init rbtx4927_irq_setup(void)
+{
+	txx9_irq_dispatch = rbtx4927_irq_dispatch;
+	tx4927_irq_init();
+	toshiba_rbtx4927_irq_ioc_init();
+	/* Onboard 10M Ether: High Active */
+	set_irq_type(RBTX4927_RTL_8019_IRQ, IRQF_TRIGGER_HIGH);
+}
diff --git a/arch/mips/txx9/rbtx4927/prom.c b/arch/mips/txx9/rbtx4927/prom.c
new file mode 100644
index 00000000000..942e627d2dc
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/prom.c
@@ -0,0 +1,45 @@
+/*
+ * rbtx4927 specific prom routines
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@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 the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4927.h>
+
+void __init rbtx4927_prom_init(void)
+{
+	extern int tx4927_get_mem_size(void);
+	int msize;
+
+	prom_init_cmdline();
+	msize = tx4927_get_mem_size();
+	add_memory_region(0, msize << 20, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/rbtx4927/setup.c b/arch/mips/txx9/rbtx4927/setup.c
new file mode 100644
index 00000000000..1657fd935da
--- /dev/null
+++ b/arch/mips/txx9/rbtx4927/setup.c
@@ -0,0 +1,443 @@
+/*
+ * Toshiba rbtx4927 specific setup
+ *
+ * Author: MontaVista Software, Inc.
+ *         source@mvista.com
+ *
+ * Copyright 2001-2002 MontaVista Software Inc.
+ *
+ * Copyright (C) 1996, 97, 2001, 04  Ralf Baechle (ralf@linux-mips.org)
+ * Copyright (C) 2000 RidgeRun, Inc.
+ * Author: RidgeRun, Inc.
+ *   glonnon@ridgerun.com, skranz@ridgerun.com, stevej@ridgerun.com
+ *
+ * Copyright 2001 MontaVista Software Inc.
+ * Author: jsun@mvista.com or jsun@junsun.net
+ *
+ * Copyright 2002 MontaVista Software Inc.
+ * Author: Michael Pruznick, michael_pruznick@mvista.com
+ *
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * Copyright (C) 2004 MontaVista Software Inc.
+ * Author: Manish Lachwani, mlachwani@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 the
+ *  Free Software Foundation; either version 2 of the License, or (at your
+ *  option) any later version.
+ *
+ *  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+ *  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ *  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+ *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ *  BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ *  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ *  ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
+ *  TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE
+ *  USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/interrupt.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/delay.h>
+#include <asm/io.h>
+#include <asm/processor.h>
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/txx9tmr.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4927.h>
+#include <asm/txx9/tx4938.h>	/* for TX4937 */
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+
+static int tx4927_ccfg_toeon = 1;
+
+#ifdef CONFIG_PCI
+static void __init tx4927_pci_setup(void)
+{
+	int extarb = !(__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCIARB);
+	struct pci_controller *c = &txx9_primary_pcic;
+
+	register_pci_controller(c);
+
+	if (__raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_PCI66)
+		txx9_pci_option =
+			(txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+			TXX9_PCI_OPT_CLK_66; /* already configured */
+
+	/* Reset PCI Bus */
+	writeb(1, rbtx4927_pcireset_addr);
+	/* Reset PCIC */
+	txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+	if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+	    TXX9_PCI_OPT_CLK_66)
+		tx4927_pciclk66_setup();
+	mdelay(10);
+	/* clear PCIC reset */
+	txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+	writeb(0, rbtx4927_pcireset_addr);
+	iob();
+
+	tx4927_report_pciclk();
+	tx4927_pcic_setup(tx4927_pcicptr, c, extarb);
+	if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+	    TXX9_PCI_OPT_CLK_AUTO &&
+	    txx9_pci66_check(c, 0, 0)) {
+		/* Reset PCI Bus */
+		writeb(1, rbtx4927_pcireset_addr);
+		/* Reset PCIC */
+		txx9_set64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+		tx4927_pciclk66_setup();
+		mdelay(10);
+		/* clear PCIC reset */
+		txx9_clear64(&tx4927_ccfgptr->clkctr, TX4927_CLKCTR_PCIRST);
+		writeb(0, rbtx4927_pcireset_addr);
+		iob();
+		/* Reinitialize PCIC */
+		tx4927_report_pciclk();
+		tx4927_pcic_setup(tx4927_pcicptr, c, extarb);
+	}
+}
+
+static void __init tx4937_pci_setup(void)
+{
+	int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB);
+	struct pci_controller *c = &txx9_primary_pcic;
+
+	register_pci_controller(c);
+
+	if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66)
+		txx9_pci_option =
+			(txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+			TXX9_PCI_OPT_CLK_66; /* already configured */
+
+	/* Reset PCI Bus */
+	writeb(1, rbtx4927_pcireset_addr);
+	/* Reset PCIC */
+	txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+	if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+	    TXX9_PCI_OPT_CLK_66)
+		tx4938_pciclk66_setup();
+	mdelay(10);
+	/* clear PCIC reset */
+	txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+	writeb(0, rbtx4927_pcireset_addr);
+	iob();
+
+	tx4938_report_pciclk();
+	tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+	if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+	    TXX9_PCI_OPT_CLK_AUTO &&
+	    txx9_pci66_check(c, 0, 0)) {
+		/* Reset PCI Bus */
+		writeb(1, rbtx4927_pcireset_addr);
+		/* Reset PCIC */
+		txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+		tx4938_pciclk66_setup();
+		mdelay(10);
+		/* clear PCIC reset */
+		txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+		writeb(0, rbtx4927_pcireset_addr);
+		iob();
+		/* Reinitialize PCIC */
+		tx4938_report_pciclk();
+		tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+	}
+}
+
+static void __init rbtx4927_arch_init(void)
+{
+	tx4927_pci_setup();
+}
+
+static void __init rbtx4937_arch_init(void)
+{
+	tx4937_pci_setup();
+}
+#else
+#define rbtx4927_arch_init NULL
+#define rbtx4937_arch_init NULL
+#endif /* CONFIG_PCI */
+
+static void __noreturn wait_forever(void)
+{
+	while (1)
+		if (cpu_wait)
+			(*cpu_wait)();
+}
+
+static void toshiba_rbtx4927_restart(char *command)
+{
+	printk(KERN_NOTICE "System Rebooting...\n");
+
+	/* enable the s/w reset register */
+	writeb(RBTX4927_SW_RESET_ENABLE_SET, RBTX4927_SW_RESET_ENABLE);
+
+	/* wait for enable to be seen */
+	while ((readb(RBTX4927_SW_RESET_ENABLE) &
+		RBTX4927_SW_RESET_ENABLE_SET) == 0x00);
+
+	/* do a s/w reset */
+	writeb(RBTX4927_SW_RESET_DO_SET, RBTX4927_SW_RESET_DO);
+
+	/* do something passive while waiting for reset */
+	local_irq_disable();
+	wait_forever();
+	/* no return */
+}
+
+static void toshiba_rbtx4927_halt(void)
+{
+	printk(KERN_NOTICE "System Halted\n");
+	local_irq_disable();
+	wait_forever();
+	/* no return */
+}
+
+static void toshiba_rbtx4927_power_off(void)
+{
+	toshiba_rbtx4927_halt();
+	/* no return */
+}
+
+static void __init rbtx4927_mem_setup(void)
+{
+	int i;
+	u32 cp0_config;
+	char *argptr;
+
+	/* f/w leaves this on at startup */
+	clear_c0_status(ST0_ERL);
+
+	/* enable caches -- HCP5 does this, pmon does not */
+	cp0_config = read_c0_config();
+	cp0_config = cp0_config & ~(TX49_CONF_IC | TX49_CONF_DC);
+	write_c0_config(cp0_config);
+
+	ioport_resource.end = 0xffffffff;
+	iomem_resource.end = 0xffffffff;
+
+	_machine_restart = toshiba_rbtx4927_restart;
+	_machine_halt = toshiba_rbtx4927_halt;
+	pm_power_off = toshiba_rbtx4927_power_off;
+
+	for (i = 0; i < TX4927_NR_TMR; i++)
+		txx9_tmr_init(TX4927_TMR_REG(0) & 0xfffffffffULL);
+
+#ifdef CONFIG_PCI
+	txx9_alloc_pci_controller(&txx9_primary_pcic,
+				  RBTX4927_PCIMEM, RBTX4927_PCIMEM_SIZE,
+				  RBTX4927_PCIIO, RBTX4927_PCIIO_SIZE);
+#else
+	set_io_port_base(KSEG1 + RBTX4927_ISA_IO_OFFSET);
+#endif
+
+	/* CCFG */
+	/* do reset on watchdog */
+	tx4927_ccfg_set(TX4927_CCFG_WR);
+	/* enable Timeout BusError */
+	if (tx4927_ccfg_toeon)
+		tx4927_ccfg_set(TX4927_CCFG_TOE);
+
+#ifdef CONFIG_SERIAL_TXX9
+	{
+		extern int early_serial_txx9_setup(struct uart_port *port);
+		struct uart_port req;
+		for(i = 0; i < 2; i++) {
+			memset(&req, 0, sizeof(req));
+			req.line = i;
+			req.iotype = UPIO_MEM;
+			req.membase = (char *)(0xff1ff300 + i * 0x100);
+			req.mapbase = 0xff1ff300 + i * 0x100;
+			req.irq = TXX9_IRQ_BASE + TX4927_IR_SIO(i);
+			req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+			req.uartclk = 50000000;
+			early_serial_txx9_setup(&req);
+		}
+	}
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "console=") == NULL) {
+                strcat(argptr, " console=ttyS0,38400");
+        }
+#endif
+#endif
+
+#ifdef CONFIG_ROOT_NFS
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "root=") == NULL) {
+                strcat(argptr, " root=/dev/nfs rw");
+        }
+#endif
+
+#ifdef CONFIG_IP_PNP
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "ip=") == NULL) {
+                strcat(argptr, " ip=any");
+        }
+#endif
+}
+
+static void __init rbtx49x7_common_time_init(void)
+{
+	/* change default value to udelay/mdelay take reasonable time */
+	loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+	mips_hpt_frequency = txx9_cpu_clock / 2;
+	if (____raw_readq(&tx4927_ccfgptr->ccfg) & TX4927_CCFG_TINTDIS)
+		txx9_clockevent_init(TX4927_TMR_REG(0) & 0xfffffffffULL,
+				     TXX9_IRQ_BASE + 17,
+				     50000000);
+}
+
+static void __init rbtx4927_time_init(void)
+{
+	/*
+	 * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
+	 *
+	 * For TX4927:
+	 * PCIDIVMODE[12:11]'s initial value is given by S9[4:3] (ON:0, OFF:1).
+	 * CPU 166MHz: PCI 66MHz : PCIDIVMODE: 00 (1/2.5)
+	 * CPU 200MHz: PCI 66MHz : PCIDIVMODE: 01 (1/3)
+	 * CPU 166MHz: PCI 33MHz : PCIDIVMODE: 10 (1/5)
+	 * CPU 200MHz: PCI 33MHz : PCIDIVMODE: 11 (1/6)
+	 * i.e. S9[3]: ON (83MHz), OFF (100MHz)
+	 */
+	switch ((unsigned long)__raw_readq(&tx4927_ccfgptr->ccfg) &
+		TX4927_CCFG_PCIDIVMODE_MASK) {
+	case TX4927_CCFG_PCIDIVMODE_2_5:
+	case TX4927_CCFG_PCIDIVMODE_5:
+		txx9_cpu_clock = 166666666;	/* 166MHz */
+		break;
+	default:
+		txx9_cpu_clock = 200000000;	/* 200MHz */
+	}
+
+	rbtx49x7_common_time_init();
+}
+
+static void __init rbtx4937_time_init(void)
+{
+	/*
+	 * ASSUMPTION: PCIDIVMODE is configured for PCI 33MHz or 66MHz.
+	 *
+	 * For TX4937:
+	 * PCIDIVMODE[12:11]'s initial value is given by S1[5:4] (ON:0, OFF:1)
+	 * PCIDIVMODE[10] is 0.
+	 * CPU 266MHz: PCI 33MHz : PCIDIVMODE: 000 (1/8)
+	 * CPU 266MHz: PCI 66MHz : PCIDIVMODE: 001 (1/4)
+	 * CPU 300MHz: PCI 33MHz : PCIDIVMODE: 010 (1/9)
+	 * CPU 300MHz: PCI 66MHz : PCIDIVMODE: 011 (1/4.5)
+	 * CPU 333MHz: PCI 33MHz : PCIDIVMODE: 100 (1/10)
+	 * CPU 333MHz: PCI 66MHz : PCIDIVMODE: 101 (1/5)
+	 */
+	switch ((unsigned long)__raw_readq(&tx4938_ccfgptr->ccfg) &
+		TX4938_CCFG_PCIDIVMODE_MASK) {
+	case TX4938_CCFG_PCIDIVMODE_8:
+	case TX4938_CCFG_PCIDIVMODE_4:
+		txx9_cpu_clock = 266666666;	/* 266MHz */
+		break;
+	case TX4938_CCFG_PCIDIVMODE_9:
+	case TX4938_CCFG_PCIDIVMODE_4_5:
+		txx9_cpu_clock = 300000000;	/* 300MHz */
+		break;
+	default:
+		txx9_cpu_clock = 333333333;	/* 333MHz */
+	}
+
+	rbtx49x7_common_time_init();
+}
+
+static int __init toshiba_rbtx4927_rtc_init(void)
+{
+	static struct resource __initdata res = {
+		.start	= 0x1c010000,
+		.end	= 0x1c010000 + 0x800 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("rtc-ds1742", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4927_ne_init(void)
+{
+	static struct resource __initdata res[] = {
+		{
+			.start	= RBTX4927_RTL_8019_BASE,
+			.end	= RBTX4927_RTL_8019_BASE + 0x20 - 1,
+			.flags	= IORESOURCE_IO,
+		}, {
+			.start	= RBTX4927_RTL_8019_IRQ,
+			.flags	= IORESOURCE_IRQ,
+		}
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("ne", -1,
+						res, ARRAY_SIZE(res));
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4927_wdt_init(void)
+{
+	return txx9_wdt_init(TX4927_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void __init rbtx4927_device_init(void)
+{
+	toshiba_rbtx4927_rtc_init();
+	rbtx4927_ne_init();
+	rbtx4927_wdt_init();
+}
+
+struct txx9_board_vec rbtx4927_vec __initdata = {
+	.system = "Toshiba RBTX4927",
+	.prom_init = rbtx4927_prom_init,
+	.mem_setup = rbtx4927_mem_setup,
+	.irq_setup = rbtx4927_irq_setup,
+	.time_init = rbtx4927_time_init,
+	.device_init = rbtx4927_device_init,
+	.arch_init = rbtx4927_arch_init,
+#ifdef CONFIG_PCI
+	.pci_map_irq = rbtx4927_pci_map_irq,
+#endif
+};
+struct txx9_board_vec rbtx4937_vec __initdata = {
+	.system = "Toshiba RBTX4937",
+	.prom_init = rbtx4927_prom_init,
+	.mem_setup = rbtx4927_mem_setup,
+	.irq_setup = rbtx4927_irq_setup,
+	.time_init = rbtx4937_time_init,
+	.device_init = rbtx4927_device_init,
+	.arch_init = rbtx4937_arch_init,
+#ifdef CONFIG_PCI
+	.pci_map_irq = rbtx4927_pci_map_irq,
+#endif
+};
diff --git a/arch/mips/txx9/rbtx4938/Makefile b/arch/mips/txx9/rbtx4938/Makefile
new file mode 100644
index 00000000000..9dcc52ae5b9
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/Makefile
@@ -0,0 +1,3 @@
+obj-y	+= prom.o setup.o irq.o spi_eeprom.o
+
+EXTRA_CFLAGS += -Werror
diff --git a/arch/mips/txx9/rbtx4938/irq.c b/arch/mips/txx9/rbtx4938/irq.c
new file mode 100644
index 00000000000..3971a061657
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/irq.c
@@ -0,0 +1,169 @@
+/*
+ * Toshiba RBTX4938 specific interrupt handlers
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. 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.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+/*
+IRQ  Device
+
+16   TX4938-CP0/00 Software 0
+17   TX4938-CP0/01 Software 1
+18   TX4938-CP0/02 Cascade TX4938-CP0
+19   TX4938-CP0/03 Multiplexed -- do not use
+20   TX4938-CP0/04 Multiplexed -- do not use
+21   TX4938-CP0/05 Multiplexed -- do not use
+22   TX4938-CP0/06 Multiplexed -- do not use
+23   TX4938-CP0/07 CPU TIMER
+
+24   TX4938-PIC/00
+25   TX4938-PIC/01
+26   TX4938-PIC/02 Cascade RBTX4938-IOC
+27   TX4938-PIC/03 RBTX4938 RTL-8019AS Ethernet
+28   TX4938-PIC/04
+29   TX4938-PIC/05 TX4938 ETH1
+30   TX4938-PIC/06 TX4938 ETH0
+31   TX4938-PIC/07
+32   TX4938-PIC/08 TX4938 SIO 0
+33   TX4938-PIC/09 TX4938 SIO 1
+34   TX4938-PIC/10 TX4938 DMA0
+35   TX4938-PIC/11 TX4938 DMA1
+36   TX4938-PIC/12 TX4938 DMA2
+37   TX4938-PIC/13 TX4938 DMA3
+38   TX4938-PIC/14
+39   TX4938-PIC/15
+40   TX4938-PIC/16 TX4938 PCIC
+41   TX4938-PIC/17 TX4938 TMR0
+42   TX4938-PIC/18 TX4938 TMR1
+43   TX4938-PIC/19 TX4938 TMR2
+44   TX4938-PIC/20
+45   TX4938-PIC/21
+46   TX4938-PIC/22 TX4938 PCIERR
+47   TX4938-PIC/23
+48   TX4938-PIC/24
+49   TX4938-PIC/25
+50   TX4938-PIC/26
+51   TX4938-PIC/27
+52   TX4938-PIC/28
+53   TX4938-PIC/29
+54   TX4938-PIC/30
+55   TX4938-PIC/31 TX4938 SPI
+
+56 RBTX4938-IOC/00 PCI-D
+57 RBTX4938-IOC/01 PCI-C
+58 RBTX4938-IOC/02 PCI-B
+59 RBTX4938-IOC/03 PCI-A
+60 RBTX4938-IOC/04 RTC
+61 RBTX4938-IOC/05 ATA
+62 RBTX4938-IOC/06 MODEM
+63 RBTX4938-IOC/07 SWINT
+*/
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <asm/mipsregs.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4938.h>
+
+static void toshiba_rbtx4938_irq_ioc_enable(unsigned int irq);
+static void toshiba_rbtx4938_irq_ioc_disable(unsigned int irq);
+
+#define TOSHIBA_RBTX4938_IOC_NAME "RBTX4938-IOC"
+static struct irq_chip toshiba_rbtx4938_irq_ioc_type = {
+	.name = TOSHIBA_RBTX4938_IOC_NAME,
+	.ack = toshiba_rbtx4938_irq_ioc_disable,
+	.mask = toshiba_rbtx4938_irq_ioc_disable,
+	.mask_ack = toshiba_rbtx4938_irq_ioc_disable,
+	.unmask = toshiba_rbtx4938_irq_ioc_enable,
+};
+
+static int toshiba_rbtx4938_irq_nested(int sw_irq)
+{
+	u8 level3;
+
+	level3 = readb(rbtx4938_imstat_addr);
+	if (level3)
+		/* must use fls so onboard ATA has priority */
+		sw_irq = RBTX4938_IRQ_IOC + fls(level3) - 1;
+	return sw_irq;
+}
+
+/**********************************************************************************/
+/* Functions for ioc                                                              */
+/**********************************************************************************/
+static void __init
+toshiba_rbtx4938_irq_ioc_init(void)
+{
+	int i;
+
+	for (i = RBTX4938_IRQ_IOC;
+	     i < RBTX4938_IRQ_IOC + RBTX4938_NR_IRQ_IOC; i++)
+		set_irq_chip_and_handler(i, &toshiba_rbtx4938_irq_ioc_type,
+					 handle_level_irq);
+
+	set_irq_chained_handler(RBTX4938_IRQ_IOCINT, handle_simple_irq);
+}
+
+static void
+toshiba_rbtx4938_irq_ioc_enable(unsigned int irq)
+{
+	unsigned char v;
+
+	v = readb(rbtx4938_imask_addr);
+	v |= (1 << (irq - RBTX4938_IRQ_IOC));
+	writeb(v, rbtx4938_imask_addr);
+	mmiowb();
+}
+
+static void
+toshiba_rbtx4938_irq_ioc_disable(unsigned int irq)
+{
+	unsigned char v;
+
+	v = readb(rbtx4938_imask_addr);
+	v &= ~(1 << (irq - RBTX4938_IRQ_IOC));
+	writeb(v, rbtx4938_imask_addr);
+	mmiowb();
+}
+
+static int rbtx4938_irq_dispatch(int pending)
+{
+	int irq;
+
+	if (pending & STATUSF_IP7)
+		irq = MIPS_CPU_IRQ_BASE + 7;
+	else if (pending & STATUSF_IP2) {
+		irq = txx9_irq();
+		if (irq == RBTX4938_IRQ_IOCINT)
+			irq = toshiba_rbtx4938_irq_nested(irq);
+	} else if (pending & STATUSF_IP1)
+		irq = MIPS_CPU_IRQ_BASE + 0;
+	else if (pending & STATUSF_IP0)
+		irq = MIPS_CPU_IRQ_BASE + 1;
+	else
+		irq = -1;
+	return irq;
+}
+
+void __init rbtx4938_irq_setup(void)
+{
+	txx9_irq_dispatch = rbtx4938_irq_dispatch;
+	/* Now, interrupt control disabled, */
+	/* all IRC interrupts are masked, */
+	/* all IRC interrupt mode are Low Active. */
+
+	/* mask all IOC interrupts */
+	writeb(0, rbtx4938_imask_addr);
+
+	/* clear SoftInt interrupts */
+	writeb(0, rbtx4938_softint_addr);
+	tx4938_irq_init();
+	toshiba_rbtx4938_irq_ioc_init();
+	/* Onboard 10M Ether: High Active */
+	set_irq_type(RBTX4938_IRQ_ETHER, IRQF_TRIGGER_HIGH);
+}
diff --git a/arch/mips/txx9/rbtx4938/prom.c b/arch/mips/txx9/rbtx4938/prom.c
new file mode 100644
index 00000000000..fbb37458ddb
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/prom.c
@@ -0,0 +1,29 @@
+/*
+ * rbtx4938 specific prom routines
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. 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.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+
+#include <linux/init.h>
+#include <linux/bootmem.h>
+#include <asm/bootinfo.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/rbtx4938.h>
+
+void __init rbtx4938_prom_init(void)
+{
+	extern int tx4938_get_mem_size(void);
+	int msize;
+#ifndef CONFIG_TX4938_NAND_BOOT
+	prom_init_cmdline();
+#endif
+
+	msize = tx4938_get_mem_size();
+	add_memory_region(0, msize << 20, BOOT_MEM_RAM);
+}
diff --git a/arch/mips/txx9/rbtx4938/setup.c b/arch/mips/txx9/rbtx4938/setup.c
new file mode 100644
index 00000000000..aaa987ae0f8
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/setup.c
@@ -0,0 +1,625 @@
+/*
+ * Setup pointers to hardware-dependent routines.
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. 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.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/types.h>
+#include <linux/ioport.h>
+#include <linux/delay.h>
+#include <linux/interrupt.h>
+#include <linux/console.h>
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+
+#include <asm/reboot.h>
+#include <asm/time.h>
+#include <asm/txx9tmr.h>
+#include <asm/io.h>
+#include <asm/txx9/generic.h>
+#include <asm/txx9/pci.h>
+#include <asm/txx9/rbtx4938.h>
+#ifdef CONFIG_SERIAL_TXX9
+#include <linux/serial_core.h>
+#endif
+#include <linux/spi/spi.h>
+#include <asm/txx9/spi.h>
+#include <asm/txx9pio.h>
+
+static int tx4938_ccfg_toeon = 1;
+
+static void rbtx4938_machine_halt(void)
+{
+        printk(KERN_NOTICE "System Halted\n");
+	local_irq_disable();
+
+	while (1)
+		__asm__(".set\tmips3\n\t"
+			"wait\n\t"
+			".set\tmips0");
+}
+
+static void rbtx4938_machine_power_off(void)
+{
+        rbtx4938_machine_halt();
+        /* no return */
+}
+
+static void rbtx4938_machine_restart(char *command)
+{
+	local_irq_disable();
+
+	printk("Rebooting...");
+	writeb(1, rbtx4938_softresetlock_addr);
+	writeb(1, rbtx4938_sfvol_addr);
+	writeb(1, rbtx4938_softreset_addr);
+	while(1)
+		;
+}
+
+static void __init rbtx4938_pci_setup(void)
+{
+#ifdef CONFIG_PCI
+	int extarb = !(__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB);
+	struct pci_controller *c = &txx9_primary_pcic;
+
+	register_pci_controller(c);
+
+	if (__raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCI66)
+		txx9_pci_option =
+			(txx9_pci_option & ~TXX9_PCI_OPT_CLK_MASK) |
+			TXX9_PCI_OPT_CLK_66; /* already configured */
+
+	/* Reset PCI Bus */
+	writeb(0, rbtx4938_pcireset_addr);
+	/* Reset PCIC */
+	txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+	if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+	    TXX9_PCI_OPT_CLK_66)
+		tx4938_pciclk66_setup();
+	mdelay(10);
+	/* clear PCIC reset */
+	txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+	writeb(1, rbtx4938_pcireset_addr);
+	iob();
+
+	tx4938_report_pciclk();
+	tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+	if ((txx9_pci_option & TXX9_PCI_OPT_CLK_MASK) ==
+	    TXX9_PCI_OPT_CLK_AUTO &&
+	    txx9_pci66_check(c, 0, 0)) {
+		/* Reset PCI Bus */
+		writeb(0, rbtx4938_pcireset_addr);
+		/* Reset PCIC */
+		txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+		tx4938_pciclk66_setup();
+		mdelay(10);
+		/* clear PCIC reset */
+		txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIRST);
+		writeb(1, rbtx4938_pcireset_addr);
+		iob();
+		/* Reinitialize PCIC */
+		tx4938_report_pciclk();
+		tx4927_pcic_setup(tx4938_pcicptr, c, extarb);
+	}
+
+	if (__raw_readq(&tx4938_ccfgptr->pcfg) &
+	    (TX4938_PCFG_ETH0_SEL|TX4938_PCFG_ETH1_SEL)) {
+		/* Reset PCIC1 */
+		txx9_set64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+		/* PCI1DMD==0 => PCI1CLK==GBUSCLK/2 => PCI66 */
+		if (!(__raw_readq(&tx4938_ccfgptr->ccfg)
+		      & TX4938_CCFG_PCI1DMD))
+			tx4938_ccfg_set(TX4938_CCFG_PCI1_66);
+		mdelay(10);
+		/* clear PCIC1 reset */
+		txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+		tx4938_report_pci1clk();
+
+		/* mem:64K(max), io:64K(max) (enough for ETH0,ETH1) */
+		c = txx9_alloc_pci_controller(NULL, 0, 0x10000, 0, 0x10000);
+		register_pci_controller(c);
+		tx4927_pcic_setup(tx4938_pcic1ptr, c, 0);
+	}
+#endif /* CONFIG_PCI */
+}
+
+/* SPI support */
+
+/* chip select for SPI devices */
+#define	SEEPROM1_CS	7	/* PIO7 */
+#define	SEEPROM2_CS	0	/* IOC */
+#define	SEEPROM3_CS	1	/* IOC */
+#define	SRTC_CS	2	/* IOC */
+
+static int __init rbtx4938_ethaddr_init(void)
+{
+#ifdef CONFIG_PCI
+	unsigned char dat[17];
+	unsigned char sum;
+	int i;
+
+	/* 0-3: "MAC\0", 4-9:eth0, 10-15:eth1, 16:sum */
+	if (spi_eeprom_read(SEEPROM1_CS, 0, dat, sizeof(dat))) {
+		printk(KERN_ERR "seeprom: read error.\n");
+		return -ENODEV;
+	} else {
+		if (strcmp(dat, "MAC") != 0)
+			printk(KERN_WARNING "seeprom: bad signature.\n");
+		for (i = 0, sum = 0; i < sizeof(dat); i++)
+			sum += dat[i];
+		if (sum)
+			printk(KERN_WARNING "seeprom: bad checksum.\n");
+	}
+	for (i = 0; i < 2; i++) {
+		unsigned int id =
+			TXX9_IRQ_BASE + (i ? TX4938_IR_ETH1 : TX4938_IR_ETH0);
+		struct platform_device *pdev;
+		if (!(__raw_readq(&tx4938_ccfgptr->pcfg) &
+		      (i ? TX4938_PCFG_ETH1_SEL : TX4938_PCFG_ETH0_SEL)))
+			continue;
+		pdev = platform_device_alloc("tc35815-mac", id);
+		if (!pdev ||
+		    platform_device_add_data(pdev, &dat[4 + 6 * i], 6) ||
+		    platform_device_add(pdev))
+			platform_device_put(pdev);
+	}
+#endif /* CONFIG_PCI */
+	return 0;
+}
+
+static void __init rbtx4938_spi_setup(void)
+{
+	/* set SPI_SEL */
+	txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_SPI_SEL);
+}
+
+static struct resource rbtx4938_fpga_resource;
+static struct resource tx4938_sdram_resource[4];
+static struct resource tx4938_sram_resource;
+
+void __init tx4938_board_setup(void)
+{
+	int i;
+	unsigned long divmode;
+	int cpuclk = 0;
+	unsigned long pcode = TX4938_REV_PCODE();
+
+	ioport_resource.start = 0;
+	ioport_resource.end = 0xffffffff;
+	iomem_resource.start = 0;
+	iomem_resource.end = 0xffffffff;	/* expand to 4GB */
+
+	txx9_reg_res_init(pcode, TX4938_REG_BASE,
+			  TX4938_REG_SIZE);
+	/* SDRAMC,EBUSC are configured by PROM */
+	for (i = 0; i < 8; i++) {
+		if (!(TX4938_EBUSC_CR(i) & 0x8))
+			continue;	/* disabled */
+		txx9_ce_res[i].start = (unsigned long)TX4938_EBUSC_BA(i);
+		txx9_ce_res[i].end =
+			txx9_ce_res[i].start + TX4938_EBUSC_SIZE(i) - 1;
+		request_resource(&iomem_resource, &txx9_ce_res[i]);
+	}
+
+	/* clocks */
+	if (txx9_master_clock) {
+		u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
+		/* calculate gbus_clock and cpu_clock_freq from master_clock */
+		divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+		switch (divmode) {
+		case TX4938_CCFG_DIVMODE_8:
+		case TX4938_CCFG_DIVMODE_10:
+		case TX4938_CCFG_DIVMODE_12:
+		case TX4938_CCFG_DIVMODE_16:
+		case TX4938_CCFG_DIVMODE_18:
+			txx9_gbus_clock = txx9_master_clock * 4; break;
+		default:
+			txx9_gbus_clock = txx9_master_clock;
+		}
+		switch (divmode) {
+		case TX4938_CCFG_DIVMODE_2:
+		case TX4938_CCFG_DIVMODE_8:
+			cpuclk = txx9_gbus_clock * 2; break;
+		case TX4938_CCFG_DIVMODE_2_5:
+		case TX4938_CCFG_DIVMODE_10:
+			cpuclk = txx9_gbus_clock * 5 / 2; break;
+		case TX4938_CCFG_DIVMODE_3:
+		case TX4938_CCFG_DIVMODE_12:
+			cpuclk = txx9_gbus_clock * 3; break;
+		case TX4938_CCFG_DIVMODE_4:
+		case TX4938_CCFG_DIVMODE_16:
+			cpuclk = txx9_gbus_clock * 4; break;
+		case TX4938_CCFG_DIVMODE_4_5:
+		case TX4938_CCFG_DIVMODE_18:
+			cpuclk = txx9_gbus_clock * 9 / 2; break;
+		}
+		txx9_cpu_clock = cpuclk;
+	} else {
+		u64 ccfg = ____raw_readq(&tx4938_ccfgptr->ccfg);
+		if (txx9_cpu_clock == 0) {
+			txx9_cpu_clock = 300000000;	/* 300MHz */
+		}
+		/* calculate gbus_clock and master_clock from cpu_clock_freq */
+		cpuclk = txx9_cpu_clock;
+		divmode = (__u32)ccfg & TX4938_CCFG_DIVMODE_MASK;
+		switch (divmode) {
+		case TX4938_CCFG_DIVMODE_2:
+		case TX4938_CCFG_DIVMODE_8:
+			txx9_gbus_clock = cpuclk / 2; break;
+		case TX4938_CCFG_DIVMODE_2_5:
+		case TX4938_CCFG_DIVMODE_10:
+			txx9_gbus_clock = cpuclk * 2 / 5; break;
+		case TX4938_CCFG_DIVMODE_3:
+		case TX4938_CCFG_DIVMODE_12:
+			txx9_gbus_clock = cpuclk / 3; break;
+		case TX4938_CCFG_DIVMODE_4:
+		case TX4938_CCFG_DIVMODE_16:
+			txx9_gbus_clock = cpuclk / 4; break;
+		case TX4938_CCFG_DIVMODE_4_5:
+		case TX4938_CCFG_DIVMODE_18:
+			txx9_gbus_clock = cpuclk * 2 / 9; break;
+		}
+		switch (divmode) {
+		case TX4938_CCFG_DIVMODE_8:
+		case TX4938_CCFG_DIVMODE_10:
+		case TX4938_CCFG_DIVMODE_12:
+		case TX4938_CCFG_DIVMODE_16:
+		case TX4938_CCFG_DIVMODE_18:
+			txx9_master_clock = txx9_gbus_clock / 4; break;
+		default:
+			txx9_master_clock = txx9_gbus_clock;
+		}
+	}
+	/* change default value to udelay/mdelay take reasonable time */
+	loops_per_jiffy = txx9_cpu_clock / HZ / 2;
+
+	/* CCFG */
+	/* clear WatchDogReset,BusErrorOnWrite flag (W1C) */
+	tx4938_ccfg_set(TX4938_CCFG_WDRST | TX4938_CCFG_BEOW);
+	/* do reset on watchdog */
+	tx4938_ccfg_set(TX4938_CCFG_WR);
+	/* clear PCIC1 reset */
+	txx9_clear64(&tx4938_ccfgptr->clkctr, TX4938_CLKCTR_PCIC1RST);
+
+	/* enable Timeout BusError */
+	if (tx4938_ccfg_toeon)
+		tx4938_ccfg_set(TX4938_CCFG_TOE);
+
+	/* DMA selection */
+	txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_DMASEL_ALL);
+
+	/* Use external clock for external arbiter */
+	if (!(____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_PCIARB))
+		txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_PCICLKEN_ALL);
+
+	printk(KERN_INFO "%s -- %dMHz(M%dMHz) CRIR:%08x CCFG:%llx PCFG:%llx\n",
+	       txx9_pcode_str,
+	       (cpuclk + 500000) / 1000000,
+	       (txx9_master_clock + 500000) / 1000000,
+	       (__u32)____raw_readq(&tx4938_ccfgptr->crir),
+	       (unsigned long long)____raw_readq(&tx4938_ccfgptr->ccfg),
+	       (unsigned long long)____raw_readq(&tx4938_ccfgptr->pcfg));
+
+	printk(KERN_INFO "%s SDRAMC --", txx9_pcode_str);
+	for (i = 0; i < 4; i++) {
+		unsigned long long cr = tx4938_sdramcptr->cr[i];
+		unsigned long ram_base, ram_size;
+		if (!((unsigned long)cr & 0x00000400))
+			continue;	/* disabled */
+		ram_base = (unsigned long)(cr >> 49) << 21;
+		ram_size = ((unsigned long)(cr >> 33) + 1) << 21;
+		if (ram_base >= 0x20000000)
+			continue;	/* high memory (ignore) */
+		printk(" CR%d:%016Lx", i, cr);
+		tx4938_sdram_resource[i].name = "SDRAM";
+		tx4938_sdram_resource[i].start = ram_base;
+		tx4938_sdram_resource[i].end = ram_base + ram_size - 1;
+		tx4938_sdram_resource[i].flags = IORESOURCE_MEM;
+		request_resource(&iomem_resource, &tx4938_sdram_resource[i]);
+	}
+	printk(" TR:%09Lx\n", tx4938_sdramcptr->tr);
+
+	/* SRAM */
+	if (tx4938_sramcptr->cr & 1) {
+		unsigned int size = 0x800;
+		unsigned long base =
+			(tx4938_sramcptr->cr >> (39-11)) & ~(size - 1);
+		tx4938_sram_resource.name = "SRAM";
+		tx4938_sram_resource.start = base;
+		tx4938_sram_resource.end = base + size - 1;
+		tx4938_sram_resource.flags = IORESOURCE_MEM;
+		request_resource(&iomem_resource, &tx4938_sram_resource);
+	}
+
+	/* TMR */
+	for (i = 0; i < TX4938_NR_TMR; i++)
+		txx9_tmr_init(TX4938_TMR_REG(i) & 0xfffffffffULL);
+
+	/* enable DMA */
+	for (i = 0; i < 2; i++)
+		____raw_writeq(TX4938_DMA_MCR_MSTEN,
+			       (void __iomem *)(TX4938_DMA_REG(i) + 0x50));
+
+	/* PIO */
+	__raw_writel(0, &tx4938_pioptr->maskcpu);
+	__raw_writel(0, &tx4938_pioptr->maskext);
+
+#ifdef CONFIG_PCI
+	txx9_alloc_pci_controller(&txx9_primary_pcic, 0, 0, 0, 0);
+#endif
+}
+
+static void __init rbtx4938_time_init(void)
+{
+	mips_hpt_frequency = txx9_cpu_clock / 2;
+	if (____raw_readq(&tx4938_ccfgptr->ccfg) & TX4938_CCFG_TINTDIS)
+		txx9_clockevent_init(TX4938_TMR_REG(0) & 0xfffffffffULL,
+				     TXX9_IRQ_BASE + TX4938_IR_TMR(0),
+				     txx9_gbus_clock / 2);
+}
+
+static void __init rbtx4938_mem_setup(void)
+{
+	unsigned long long pcfg;
+	char *argptr;
+
+	iomem_resource.end = 0xffffffff;	/* 4GB */
+
+	if (txx9_master_clock == 0)
+		txx9_master_clock = 25000000; /* 25MHz */
+	tx4938_board_setup();
+#ifndef CONFIG_PCI
+	set_io_port_base(RBTX4938_ETHER_BASE);
+#endif
+
+#ifdef CONFIG_SERIAL_TXX9
+	{
+		extern int early_serial_txx9_setup(struct uart_port *port);
+		int i;
+		struct uart_port req;
+		for(i = 0; i < 2; i++) {
+			memset(&req, 0, sizeof(req));
+			req.line = i;
+			req.iotype = UPIO_MEM;
+			req.membase = (char *)(0xff1ff300 + i * 0x100);
+			req.mapbase = 0xff1ff300 + i * 0x100;
+			req.irq = RBTX4938_IRQ_IRC_SIO(i);
+			req.flags |= UPF_BUGGY_UART /*HAVE_CTS_LINE*/;
+			req.uartclk = 50000000;
+			early_serial_txx9_setup(&req);
+		}
+	}
+#ifdef CONFIG_SERIAL_TXX9_CONSOLE
+        argptr = prom_getcmdline();
+        if (strstr(argptr, "console=") == NULL) {
+                strcat(argptr, " console=ttyS0,38400");
+        }
+#endif
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_PIO58_61
+	printk("PIOSEL: disabling both ata and nand selection\n");
+	local_irq_disable();
+	txx9_clear64(&tx4938_ccfgptr->pcfg,
+		     TX4938_PCFG_NDF_SEL | TX4938_PCFG_ATA_SEL);
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_NAND
+	printk("PIOSEL: enabling nand selection\n");
+	txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_NDF_SEL);
+	txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_ATA_SEL);
+#endif
+
+#ifdef CONFIG_TOSHIBA_RBTX4938_MPLEX_ATA
+	printk("PIOSEL: enabling ata selection\n");
+	txx9_set64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_ATA_SEL);
+	txx9_clear64(&tx4938_ccfgptr->pcfg, TX4938_PCFG_NDF_SEL);
+#endif
+
+#ifdef CONFIG_IP_PNP
+	argptr = prom_getcmdline();
+	if (strstr(argptr, "ip=") == NULL) {
+		strcat(argptr, " ip=any");
+	}
+#endif
+
+
+#ifdef CONFIG_FB
+	{
+		conswitchp = &dummy_con;
+	}
+#endif
+
+	rbtx4938_spi_setup();
+	pcfg = ____raw_readq(&tx4938_ccfgptr->pcfg);	/* updated */
+	/* fixup piosel */
+	if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
+	    TX4938_PCFG_ATA_SEL)
+		writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x04,
+		       rbtx4938_piosel_addr);
+	else if ((pcfg & (TX4938_PCFG_ATA_SEL | TX4938_PCFG_NDF_SEL)) ==
+		 TX4938_PCFG_NDF_SEL)
+		writeb((readb(rbtx4938_piosel_addr) & 0x03) | 0x08,
+		       rbtx4938_piosel_addr);
+	else
+		writeb(readb(rbtx4938_piosel_addr) & ~(0x08 | 0x04),
+		       rbtx4938_piosel_addr);
+
+	rbtx4938_fpga_resource.name = "FPGA Registers";
+	rbtx4938_fpga_resource.start = CPHYSADDR(RBTX4938_FPGA_REG_ADDR);
+	rbtx4938_fpga_resource.end = CPHYSADDR(RBTX4938_FPGA_REG_ADDR) + 0xffff;
+	rbtx4938_fpga_resource.flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+	if (request_resource(&iomem_resource, &rbtx4938_fpga_resource))
+		printk("request resource for fpga failed\n");
+
+	_machine_restart = rbtx4938_machine_restart;
+	_machine_halt = rbtx4938_machine_halt;
+	pm_power_off = rbtx4938_machine_power_off;
+
+	writeb(0xff, rbtx4938_led_addr);
+	printk(KERN_INFO "RBTX4938 --- FPGA(Rev %02x) DIPSW:%02x,%02x\n",
+	       readb(rbtx4938_fpga_rev_addr),
+	       readb(rbtx4938_dipsw_addr), readb(rbtx4938_bdipsw_addr));
+}
+
+static int __init rbtx4938_ne_init(void)
+{
+	struct resource res[] = {
+		{
+			.start	= RBTX4938_RTL_8019_BASE,
+			.end	= RBTX4938_RTL_8019_BASE + 0x20 - 1,
+			.flags	= IORESOURCE_IO,
+		}, {
+			.start	= RBTX4938_RTL_8019_IRQ,
+			.flags	= IORESOURCE_IRQ,
+		}
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("ne", -1,
+						res, ARRAY_SIZE(res));
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+/* GPIO support */
+
+int gpio_to_irq(unsigned gpio)
+{
+	return -EINVAL;
+}
+
+int irq_to_gpio(unsigned irq)
+{
+	return -EINVAL;
+}
+
+static DEFINE_SPINLOCK(rbtx4938_spi_gpio_lock);
+
+static void rbtx4938_spi_gpio_set(struct gpio_chip *chip, unsigned int offset,
+				  int value)
+{
+	u8 val;
+	unsigned long flags;
+	spin_lock_irqsave(&rbtx4938_spi_gpio_lock, flags);
+	val = readb(rbtx4938_spics_addr);
+	if (value)
+		val |= 1 << offset;
+	else
+		val &= ~(1 << offset);
+	writeb(val, rbtx4938_spics_addr);
+	mmiowb();
+	spin_unlock_irqrestore(&rbtx4938_spi_gpio_lock, flags);
+}
+
+static int rbtx4938_spi_gpio_dir_out(struct gpio_chip *chip,
+				     unsigned int offset, int value)
+{
+	rbtx4938_spi_gpio_set(chip, offset, value);
+	return 0;
+}
+
+static struct gpio_chip rbtx4938_spi_gpio_chip = {
+	.set = rbtx4938_spi_gpio_set,
+	.direction_output = rbtx4938_spi_gpio_dir_out,
+	.label = "RBTX4938-SPICS",
+	.base = 16,
+	.ngpio = 3,
+};
+
+/* SPI support */
+
+static void __init txx9_spi_init(unsigned long base, int irq)
+{
+	struct resource res[] = {
+		{
+			.start	= base,
+			.end	= base + 0x20 - 1,
+			.flags	= IORESOURCE_MEM,
+		}, {
+			.start	= irq,
+			.flags	= IORESOURCE_IRQ,
+		},
+	};
+	platform_device_register_simple("spi_txx9", 0,
+					res, ARRAY_SIZE(res));
+}
+
+static int __init rbtx4938_spi_init(void)
+{
+	struct spi_board_info srtc_info = {
+		.modalias = "rtc-rs5c348",
+		.max_speed_hz = 1000000, /* 1.0Mbps @ Vdd 2.0V */
+		.bus_num = 0,
+		.chip_select = 16 + SRTC_CS,
+		/* Mode 1 (High-Active, Shift-Then-Sample), High Avtive CS  */
+		.mode = SPI_MODE_1 | SPI_CS_HIGH,
+	};
+	spi_register_board_info(&srtc_info, 1);
+	spi_eeprom_register(SEEPROM1_CS);
+	spi_eeprom_register(16 + SEEPROM2_CS);
+	spi_eeprom_register(16 + SEEPROM3_CS);
+	gpio_request(16 + SRTC_CS, "rtc-rs5c348");
+	gpio_direction_output(16 + SRTC_CS, 0);
+	gpio_request(SEEPROM1_CS, "seeprom1");
+	gpio_direction_output(SEEPROM1_CS, 1);
+	gpio_request(16 + SEEPROM2_CS, "seeprom2");
+	gpio_direction_output(16 + SEEPROM2_CS, 1);
+	gpio_request(16 + SEEPROM3_CS, "seeprom3");
+	gpio_direction_output(16 + SEEPROM3_CS, 1);
+	txx9_spi_init(TX4938_SPI_REG & 0xfffffffffULL, RBTX4938_IRQ_IRC_SPI);
+	return 0;
+}
+
+static void __init rbtx4938_arch_init(void)
+{
+	txx9_gpio_init(TX4938_PIO_REG & 0xfffffffffULL, 0, 16);
+	gpiochip_add(&rbtx4938_spi_gpio_chip);
+	rbtx4938_pci_setup();
+	rbtx4938_spi_init();
+}
+
+/* Watchdog support */
+
+static int __init txx9_wdt_init(unsigned long base)
+{
+	struct resource res = {
+		.start	= base,
+		.end	= base + 0x100 - 1,
+		.flags	= IORESOURCE_MEM,
+	};
+	struct platform_device *dev =
+		platform_device_register_simple("txx9wdt", -1, &res, 1);
+	return IS_ERR(dev) ? PTR_ERR(dev) : 0;
+}
+
+static int __init rbtx4938_wdt_init(void)
+{
+	return txx9_wdt_init(TX4938_TMR_REG(2) & 0xfffffffffULL);
+}
+
+static void __init rbtx4938_device_init(void)
+{
+	rbtx4938_ethaddr_init();
+	rbtx4938_ne_init();
+	rbtx4938_wdt_init();
+}
+
+struct txx9_board_vec rbtx4938_vec __initdata = {
+	.system = "Toshiba RBTX4938",
+	.prom_init = rbtx4938_prom_init,
+	.mem_setup = rbtx4938_mem_setup,
+	.irq_setup = rbtx4938_irq_setup,
+	.time_init = rbtx4938_time_init,
+	.device_init = rbtx4938_device_init,
+	.arch_init = rbtx4938_arch_init,
+#ifdef CONFIG_PCI
+	.pci_map_irq = rbtx4938_pci_map_irq,
+#endif
+};
diff --git a/arch/mips/txx9/rbtx4938/spi_eeprom.c b/arch/mips/txx9/rbtx4938/spi_eeprom.c
new file mode 100644
index 00000000000..a7ea8b041c1
--- /dev/null
+++ b/arch/mips/txx9/rbtx4938/spi_eeprom.c
@@ -0,0 +1,99 @@
+/*
+ * spi_eeprom.c
+ * Copyright (C) 2000-2001 Toshiba Corporation
+ *
+ * 2003-2005 (c) MontaVista Software, Inc. 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.
+ *
+ * Support for TX4938 in 2.6 - Manish Lachwani (mlachwani@mvista.com)
+ */
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/eeprom.h>
+#include <asm/txx9/spi.h>
+
+#define AT250X0_PAGE_SIZE	8
+
+/* register board information for at25 driver */
+int __init spi_eeprom_register(int chipid)
+{
+	static struct spi_eeprom eeprom = {
+		.name = "at250x0",
+		.byte_len = 128,
+		.page_size = AT250X0_PAGE_SIZE,
+		.flags = EE_ADDR1,
+	};
+	struct spi_board_info info = {
+		.modalias = "at25",
+		.max_speed_hz = 1500000,	/* 1.5Mbps */
+		.bus_num = 0,
+		.chip_select = chipid,
+		.platform_data = &eeprom,
+		/* Mode 0: High-Active, Sample-Then-Shift */
+	};
+
+	return spi_register_board_info(&info, 1);
+}
+
+/* simple temporary spi driver to provide early access to seeprom. */
+
+static struct read_param {
+	int chipid;
+	int address;
+	unsigned char *buf;
+	int len;
+} *read_param;
+
+static int __init early_seeprom_probe(struct spi_device *spi)
+{
+	int stat = 0;
+	u8 cmd[2];
+	int len = read_param->len;
+	char *buf = read_param->buf;
+	int address = read_param->address;
+
+	dev_info(&spi->dev, "spiclk %u KHz.\n",
+		 (spi->max_speed_hz + 500) / 1000);
+	if (read_param->chipid != spi->chip_select)
+		return -ENODEV;
+	while (len > 0) {
+		/* spi_write_then_read can only work with small chunk */
+		int c = len < AT250X0_PAGE_SIZE ? len : AT250X0_PAGE_SIZE;
+		cmd[0] = 0x03;	/* AT25_READ */
+		cmd[1] = address;
+		stat = spi_write_then_read(spi, cmd, sizeof(cmd), buf, c);
+		buf += c;
+		len -= c;
+		address += c;
+	}
+	return stat;
+}
+
+static struct spi_driver early_seeprom_driver __initdata = {
+	.driver = {
+		.name	= "at25",
+		.owner	= THIS_MODULE,
+	},
+	.probe	= early_seeprom_probe,
+};
+
+int __init spi_eeprom_read(int chipid, int address,
+			   unsigned char *buf, int len)
+{
+	int ret;
+	struct read_param param = {
+		.chipid = chipid,
+		.address = address,
+		.buf = buf,
+		.len = len
+	};
+
+	read_param = &param;
+	ret = spi_register_driver(&early_seeprom_driver);
+	if (!ret)
+		spi_unregister_driver(&early_seeprom_driver);
+	return ret;
+}