Merge branch 'linus' into x86/x2apic

Conflicts:

	arch/x86/kernel/genapic_64.c

Manual merge:

	arch/x86/kernel/genx2apic_uv_x.c

Signed-off-by: Ingo Molnar <mingo@elte.hu>

17 files changed, 1496 insertions, 0 deletions

diff --git a/arch/arm/mach-ixp2000/include/mach/debug-macro.S b/arch/arm/mach-ixp2000/include/mach/debug-macro.S
new file mode 100644
index 00000000000..904ff56d224
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/debug-macro.S
@@ -0,0 +1,27 @@
+/* arch/arm/mach-ixp2000/include/mach/debug-macro.S
+ *
+ * Debugging macro include header
+ *
+ *  Copyright (C) 1994-1999 Russell King
+ *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+*/
+
+		.macro  addruart,rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		moveq	\rx, #0xc0000000	@ Physical base
+		movne	\rx, #0xfe000000	@ virtual base
+		orrne	\rx, \rx, #0x00f00000
+		orr	\rx, \rx, #0x00030000
+#ifdef	__ARMEB__
+		orr	\rx, \rx, #0x00000003
+#endif
+		.endm
+
+#define UART_SHIFT	2
+#include <asm/hardware/debug-8250.S>
diff --git a/arch/arm/mach-ixp2000/include/mach/dma.h b/arch/arm/mach-ixp2000/include/mach/dma.h
new file mode 100644
index 00000000000..26063d60f62
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/dma.h
@@ -0,0 +1,9 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/dma.h
+ *
+ * Copyright (C) 2002 Intel Corp.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
diff --git a/arch/arm/mach-ixp2000/include/mach/enp2611.h b/arch/arm/mach-ixp2000/include/mach/enp2611.h
new file mode 100644
index 00000000000..9ce3690061d
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/enp2611.h
@@ -0,0 +1,46 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/enp2611.h
+ *
+ * Register and other defines for Radisys ENP-2611
+ *
+ * Created 2004 by Lennert Buytenhek from the ixdp2x01 code.  The
+ * original version carries the following notices:
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyright (C) 2003-2004 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.
+ */
+
+#ifndef __ENP2611_H
+#define __ENP2611_H
+
+#define ENP2611_CALEB_PHYS_BASE		0xc5000000
+#define ENP2611_CALEB_VIRT_BASE		0xfe000000
+#define ENP2611_CALEB_SIZE		0x00100000
+
+#define ENP2611_PM3386_0_PHYS_BASE	0xc6000000
+#define ENP2611_PM3386_0_VIRT_BASE	0xfe100000
+#define ENP2611_PM3386_0_SIZE		0x00100000
+
+#define ENP2611_PM3386_1_PHYS_BASE	0xc6400000
+#define ENP2611_PM3386_1_VIRT_BASE	0xfe200000
+#define ENP2611_PM3386_1_SIZE		0x00100000
+
+#define ENP2611_GPIO_SCL		7
+#define ENP2611_GPIO_SDA		6
+
+#define IRQ_ENP2611_THERMAL		IRQ_IXP2000_GPIO4
+#define IRQ_ENP2611_OPTION_BOARD	IRQ_IXP2000_GPIO3
+#define IRQ_ENP2611_CALEB		IRQ_IXP2000_GPIO2
+#define IRQ_ENP2611_PM3386_1		IRQ_IXP2000_GPIO1
+#define IRQ_ENP2611_PM3386_0		IRQ_IXP2000_GPIO0
+
+
+#endif
diff --git a/arch/arm/mach-ixp2000/include/mach/entry-macro.S b/arch/arm/mach-ixp2000/include/mach/entry-macro.S
new file mode 100644
index 00000000000..5850ffc8c75
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/entry-macro.S
@@ -0,0 +1,60 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/entry-macro.S
+ *
+ * Low-level IRQ helper macros for IXP2000-based platforms
+ *
+ * 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.
+ */
+#include <mach/irqs.h>
+
+		.macro  disable_fiq
+		.endm
+
+		.macro  get_irqnr_preamble, base, tmp
+		.endm
+
+		.macro  arch_ret_to_user, tmp1, tmp2
+		.endm
+
+		.macro  get_irqnr_and_base, irqnr, irqstat, base, tmp
+
+		mov	\irqnr, #0x0              @clear out irqnr as default
+                mov	\base, #0xfe000000
+		orr	\base, \base, #0x00e00000
+		orr	\base, \base, #0x08
+		ldr	\irqstat, [\base]         @ get interrupts
+
+		cmp	\irqstat, #0
+		beq	1001f
+
+		clz     \irqnr, \irqstat
+		mov     \base, #31
+		subs    \irqnr, \base, \irqnr
+
+		/*
+		 * We handle PCIA and PCIB here so we don't have an
+		 * extra layer of code just to check these two bits.
+		 */
+		cmp	\irqnr, #IRQ_IXP2000_PCI
+		bne	1001f
+
+		mov	\base, #0xfe000000
+		orr	\base, \base, #0x00c00000
+		orr	\base, \base, #0x00000100
+		orr	\base, \base, #0x00000058
+		ldr	\irqstat, [\base]
+
+		mov	\tmp, #(1<<26)
+		tst	\irqstat, \tmp
+		movne	\irqnr, #IRQ_IXP2000_PCIA
+		bne	1001f
+
+		mov	\tmp, #(1<<27)
+		tst	\irqstat, \tmp
+		movne	\irqnr, #IRQ_IXP2000_PCIB
+
+1001:
+		.endm
+
diff --git a/arch/arm/mach-ixp2000/include/mach/gpio.h b/arch/arm/mach-ixp2000/include/mach/gpio.h
new file mode 100644
index 00000000000..4a88d2c33da
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/gpio.h
@@ -0,0 +1,48 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/gpio.h
+ *
+ * Copyright (C) 2002 Intel Corporation.
+ *
+ * This program is free software, you can redistribute it and/or modify 
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/*
+ * IXP2000 GPIO in/out, edge/level detection for IRQs:
+ * IRQs are generated on Falling-edge, Rising-Edge, Level-low, Level-High
+ * or both Falling-edge and Rising-edge.  
+ * This must be called *before* the corresponding IRQ is registerd.
+ * Use this instead of directly setting the GPIO registers.
+ * GPIOs may also be used as GPIOs (e.g. for emulating i2c/smb)
+ */
+#ifndef __ASM_ARCH_GPIO_H
+#define __ASM_ARCH_GPIO_H
+
+#ifndef __ASSEMBLY__
+
+#define GPIO_IN				0
+#define GPIO_OUT			1
+
+#define IXP2000_GPIO_LOW		0
+#define IXP2000_GPIO_HIGH		1
+
+extern void gpio_line_config(int line, int direction);
+
+static inline int gpio_line_get(int line)
+{
+	return (((*IXP2000_GPIO_PLR) >> line) & 1);
+}
+
+static inline void gpio_line_set(int line, int value)
+{
+	if (value == IXP2000_GPIO_HIGH) {
+		ixp2000_reg_write(IXP2000_GPIO_POSR, 1 << line);
+	} else if (value == IXP2000_GPIO_LOW) {
+		ixp2000_reg_write(IXP2000_GPIO_POCR, 1 << line);
+	}
+}
+
+#endif /* !__ASSEMBLY__ */
+
+#endif /* ASM_ARCH_IXP2000_GPIO_H_ */
diff --git a/arch/arm/mach-ixp2000/include/mach/hardware.h b/arch/arm/mach-ixp2000/include/mach/hardware.h
new file mode 100644
index 00000000000..f033de4e749
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/hardware.h
@@ -0,0 +1,44 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/hardware.h
+ *
+ * Hardware definitions for IXP2400/2800 based systems
+ *
+ * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com>
+ *
+ * Maintainer: Deepak Saxena <dsaxena@mvista.com>
+ *
+ * Copyright (C) 2001-2002 Intel Corp.
+ * Copyright (C) 2003-2004 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.
+ */
+
+#ifndef __ASM_ARCH_HARDWARE_H__
+#define __ASM_ARCH_HARDWARE_H__
+
+/*
+ * This needs to be platform-specific?
+ */
+#define PCIBIOS_MIN_IO          0x00000000
+#define PCIBIOS_MIN_MEM         0x00000000
+
+#include "ixp2000-regs.h"	/* Chipset Registers */
+
+#define pcibios_assign_all_busses() 0
+
+/*
+ * Platform helper functions
+ */
+#include "platform.h"
+
+/*
+ * Platform-specific bits
+ */
+#include "enp2611.h"		/* ENP-2611 */
+#include "ixdp2x00.h"		/* IXDP2400/2800 */
+#include "ixdp2x01.h"		/* IXDP2401/2801 */
+
+#endif  /* _ASM_ARCH_HARDWARE_H__ */
diff --git a/arch/arm/mach-ixp2000/include/mach/io.h b/arch/arm/mach-ixp2000/include/mach/io.h
new file mode 100644
index 00000000000..859e584914d
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/io.h
@@ -0,0 +1,134 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/io.h
+ *
+ * Original Author: Naeem M Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002  Intel Corp.
+ * Copyrgiht (C) 2003-2004 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#include <mach/hardware.h>
+
+#define IO_SPACE_LIMIT		0xffffffff
+#define __mem_pci(a)		(a)
+
+/*
+ * The A? revisions of the IXP2000s assert byte lanes for PCI I/O
+ * transactions the other way round (MEM transactions don't have this
+ * issue), so if we want to support those models, we need to override
+ * the standard I/O functions.
+ *
+ * B0 and later have a bit that can be set to 1 to get the proper
+ * behavior for I/O transactions, which then allows us to use the
+ * standard I/O functions.  This is what we do if the user does not
+ * explicitly ask for support for pre-B0.
+ */
+#ifdef CONFIG_IXP2000_SUPPORT_BROKEN_PCI_IO
+#define ___io(p)		((void __iomem *)((p)+IXP2000_PCI_IO_VIRT_BASE))
+
+#define alignb(addr)		(void __iomem *)((unsigned long)(addr) ^ 3)
+#define alignw(addr)		(void __iomem *)((unsigned long)(addr) ^ 2)
+
+#define outb(v,p)		__raw_writeb((v),alignb(___io(p)))
+#define outw(v,p)		__raw_writew((v),alignw(___io(p)))
+#define outl(v,p)		__raw_writel((v),___io(p))
+
+#define inb(p)		({ unsigned int __v = __raw_readb(alignb(___io(p))); __v; })
+#define inw(p)		\
+	({ unsigned int __v = (__raw_readw(alignw(___io(p)))); __v; })
+#define inl(p)		\
+	({ unsigned int __v = (__raw_readl(___io(p))); __v; })
+
+#define outsb(p,d,l)		__raw_writesb(alignb(___io(p)),d,l)
+#define outsw(p,d,l)		__raw_writesw(alignw(___io(p)),d,l)
+#define outsl(p,d,l)		__raw_writesl(___io(p),d,l)
+
+#define insb(p,d,l)		__raw_readsb(alignb(___io(p)),d,l)
+#define insw(p,d,l)		__raw_readsw(alignw(___io(p)),d,l)
+#define insl(p,d,l)		__raw_readsl(___io(p),d,l)
+
+#define __is_io_address(p)	((((unsigned long)(p)) & ~(IXP2000_PCI_IO_SIZE - 1)) == IXP2000_PCI_IO_VIRT_BASE)
+
+#define ioread8(p)						\
+	({							\
+		unsigned int __v;				\
+								\
+		if (__is_io_address(p)) {			\
+			__v = __raw_readb(alignb(p));		\
+		} else {					\
+			__v = __raw_readb(p);			\
+		}						\
+								\
+		__v;						\
+	})							\
+
+#define ioread16(p)						\
+	({							\
+		unsigned int __v;				\
+								\
+		if (__is_io_address(p)) {			\
+			__v = __raw_readw(alignw(p));		\
+		} else {					\
+			__v = le16_to_cpu(__raw_readw(p));	\
+		}						\
+								\
+		__v;						\
+	})
+
+#define ioread32(p)						\
+	({							\
+		unsigned int __v;				\
+								\
+		if (__is_io_address(p)) {			\
+			__v = __raw_readl(p);			\
+		} else {					\
+			__v = le32_to_cpu(__raw_readl(p));	\
+		}						\
+								\
+		 __v;						\
+	})
+
+#define iowrite8(v,p)						\
+	({							\
+		if (__is_io_address(p)) {			\
+			__raw_writeb((v), alignb(p));		\
+		} else {					\
+			__raw_writeb((v), p);			\
+		}						\
+	})
+
+#define iowrite16(v,p)						\
+	({							\
+		if (__is_io_address(p)) {			\
+			__raw_writew((v), alignw(p));		\
+		} else {					\
+			__raw_writew(cpu_to_le16(v), p);	\
+		}						\
+	})
+
+#define iowrite32(v,p)						\
+	({							\
+		if (__is_io_address(p)) {			\
+			__raw_writel((v), p);			\
+		} else {					\
+			__raw_writel(cpu_to_le32(v), p);	\
+		}						\
+	})
+
+#define ioport_map(port, nr)	___io(port)
+
+#define ioport_unmap(addr)
+#else
+#define __io(p)			((void __iomem *)((p)+IXP2000_PCI_IO_VIRT_BASE))
+#endif
+
+
+#endif
diff --git a/arch/arm/mach-ixp2000/include/mach/irqs.h b/arch/arm/mach-ixp2000/include/mach/irqs.h
new file mode 100644
index 00000000000..bee96bcafdc
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/irqs.h
@@ -0,0 +1,207 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/irqs.h
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyright (C) 2003-2004 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _IRQS_H
+#define _IRQS_H
+
+/*
+ * Do NOT add #ifdef MACHINE_FOO in here.
+ * Simpy add your machine IRQs here and increase NR_IRQS if needed to
+ * hold your machine's IRQ table.
+ */
+
+/*
+ * Some interrupt numbers go unused b/c the IRQ mask/ummask/status
+ * register has those bit reserved. We just mark those interrupts
+ * as invalid and this allows us to do mask/unmask with a single
+ * shift operation instead of having to map the IRQ number to
+ * a HW IRQ number.
+ */
+#define	IRQ_IXP2000_SOFT_INT		0 /* soft interrupt */
+#define	IRQ_IXP2000_ERRSUM		1 /* OR of all bits in ErrorStatus reg*/
+#define	IRQ_IXP2000_UART		2
+#define	IRQ_IXP2000_GPIO		3
+#define	IRQ_IXP2000_TIMER1     		4
+#define	IRQ_IXP2000_TIMER2     		5
+#define	IRQ_IXP2000_TIMER3     		6
+#define	IRQ_IXP2000_TIMER4     		7
+#define	IRQ_IXP2000_PMU        		8               
+#define	IRQ_IXP2000_SPF        		9  /* Slow port framer IRQ */
+#define	IRQ_IXP2000_DMA1      		10
+#define	IRQ_IXP2000_DMA2      		11
+#define	IRQ_IXP2000_DMA3      		12
+#define	IRQ_IXP2000_PCI_DOORBELL	13
+#define	IRQ_IXP2000_ME_ATTN       	14 
+#define	IRQ_IXP2000_PCI   		15 /* PCI INTA or INTB */
+#define	IRQ_IXP2000_THDA0   		16 /* thread 0-31A */
+#define	IRQ_IXP2000_THDA1  		17 /* thread 32-63A, IXP2800 only */
+#define	IRQ_IXP2000_THDA2		18 /* thread 64-95A */
+#define	IRQ_IXP2000_THDA3 		19 /* thread 96-127A, IXP2800 only */
+#define	IRQ_IXP2000_THDB0		24 /* thread 0-31B */
+#define	IRQ_IXP2000_THDB1		25 /* thread 32-63B, IXP2800 only */
+#define	IRQ_IXP2000_THDB2		26 /* thread 64-95B */
+#define	IRQ_IXP2000_THDB3		27 /* thread 96-127B, IXP2800 only */
+
+/* define generic GPIOs */
+#define IRQ_IXP2000_GPIO0		32
+#define IRQ_IXP2000_GPIO1		33
+#define IRQ_IXP2000_GPIO2		34
+#define IRQ_IXP2000_GPIO3		35
+#define IRQ_IXP2000_GPIO4		36
+#define IRQ_IXP2000_GPIO5		37
+#define IRQ_IXP2000_GPIO6		38
+#define IRQ_IXP2000_GPIO7		39
+
+/* split off the 2 PCI sources */
+#define IRQ_IXP2000_PCIA		40
+#define IRQ_IXP2000_PCIB		41
+
+/* Int sources from IRQ_ERROR_STATUS */
+#define IRQ_IXP2000_DRAM0_MIN_ERR	42
+#define IRQ_IXP2000_DRAM0_MAJ_ERR	43
+#define IRQ_IXP2000_DRAM1_MIN_ERR	44
+#define IRQ_IXP2000_DRAM1_MAJ_ERR	45
+#define IRQ_IXP2000_DRAM2_MIN_ERR	46
+#define IRQ_IXP2000_DRAM2_MAJ_ERR	47
+/* 48-57 reserved */
+#define IRQ_IXP2000_SRAM0_ERR		58
+#define IRQ_IXP2000_SRAM1_ERR		59
+#define IRQ_IXP2000_SRAM2_ERR		60
+#define IRQ_IXP2000_SRAM3_ERR		61
+/* 62-65 reserved */
+#define IRQ_IXP2000_MEDIA_ERR		66
+#define IRQ_IXP2000_PCI_ERR			67
+#define IRQ_IXP2000_SP_INT			68
+
+#define NR_IXP2000_IRQS				69
+
+#define	IXP2000_BOARD_IRQ(x)		(NR_IXP2000_IRQS + (x))
+
+#define	IXP2000_BOARD_IRQ_MASK(irq)	(1 << (irq - NR_IXP2000_IRQS))	
+
+#define IXP2000_ERR_IRQ_MASK(irq) ( 1 << (irq - IRQ_IXP2000_DRAM0_MIN_ERR))
+#define IXP2000_VALID_ERR_IRQ_MASK (\
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_DRAM0_MIN_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_DRAM0_MAJ_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_DRAM1_MIN_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_DRAM1_MAJ_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_DRAM2_MIN_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_DRAM2_MAJ_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_SRAM0_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_SRAM1_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_SRAM2_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_SRAM3_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_MEDIA_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_PCI_ERR) | \
+		IXP2000_ERR_IRQ_MASK(IRQ_IXP2000_SP_INT)	)
+
+/*
+ * This allows for all the on-chip sources plus up to 32 CPLD based
+ * IRQs. Should be more than enough.
+ */
+#define	IXP2000_BOARD_IRQS		32
+#define NR_IRQS				(NR_IXP2000_IRQS + IXP2000_BOARD_IRQS)
+
+
+/* 
+ * IXDP2400 specific IRQs
+ */
+#define	IRQ_IXDP2400_INGRESS_NPU	IXP2000_BOARD_IRQ(0) 
+#define	IRQ_IXDP2400_ENET		IXP2000_BOARD_IRQ(1) 
+#define	IRQ_IXDP2400_MEDIA_PCI		IXP2000_BOARD_IRQ(2) 
+#define	IRQ_IXDP2400_MEDIA_SP		IXP2000_BOARD_IRQ(3) 
+#define	IRQ_IXDP2400_SF_PCI		IXP2000_BOARD_IRQ(4) 
+#define	IRQ_IXDP2400_SF_SP		IXP2000_BOARD_IRQ(5) 
+#define	IRQ_IXDP2400_PMC		IXP2000_BOARD_IRQ(6) 
+#define	IRQ_IXDP2400_TVM		IXP2000_BOARD_IRQ(7) 
+
+#define	NR_IXDP2400_IRQS		((IRQ_IXDP2400_TVM)+1)  
+#define	IXDP2400_NR_IRQS		NR_IXDP2400_IRQS - NR_IXP2000_IRQS
+
+/* IXDP2800 specific IRQs */
+#define IRQ_IXDP2800_EGRESS_ENET	IXP2000_BOARD_IRQ(0)
+#define IRQ_IXDP2800_INGRESS_NPU	IXP2000_BOARD_IRQ(1)
+#define IRQ_IXDP2800_PMC		IXP2000_BOARD_IRQ(2)
+#define IRQ_IXDP2800_FABRIC_PCI		IXP2000_BOARD_IRQ(3)
+#define IRQ_IXDP2800_FABRIC		IXP2000_BOARD_IRQ(4)
+#define IRQ_IXDP2800_MEDIA		IXP2000_BOARD_IRQ(5)
+
+#define	NR_IXDP2800_IRQS		((IRQ_IXDP2800_MEDIA)+1)
+#define	IXDP2800_NR_IRQS		NR_IXDP2800_IRQS - NR_IXP2000_IRQS
+
+/* 
+ * IRQs on both IXDP2x01 boards
+ */
+#define IRQ_IXDP2X01_SPCI_DB_0		IXP2000_BOARD_IRQ(2)
+#define IRQ_IXDP2X01_SPCI_DB_1		IXP2000_BOARD_IRQ(3)
+#define IRQ_IXDP2X01_SPCI_PMC_INTA	IXP2000_BOARD_IRQ(4)
+#define IRQ_IXDP2X01_SPCI_PMC_INTB	IXP2000_BOARD_IRQ(5)
+#define IRQ_IXDP2X01_SPCI_PMC_INTC	IXP2000_BOARD_IRQ(6)
+#define IRQ_IXDP2X01_SPCI_PMC_INTD	IXP2000_BOARD_IRQ(7)
+#define IRQ_IXDP2X01_SPCI_FIC_INT	IXP2000_BOARD_IRQ(8)
+#define IRQ_IXDP2X01_IPMI_FROM		IXP2000_BOARD_IRQ(16)
+#define IRQ_IXDP2X01_125US		IXP2000_BOARD_IRQ(17)
+#define IRQ_IXDP2X01_DB_0_ADD		IXP2000_BOARD_IRQ(18)
+#define IRQ_IXDP2X01_DB_1_ADD		IXP2000_BOARD_IRQ(19)
+#define IRQ_IXDP2X01_UART1		IXP2000_BOARD_IRQ(21)
+#define IRQ_IXDP2X01_UART2		IXP2000_BOARD_IRQ(22)
+#define IRQ_IXDP2X01_FIC_ADD_INT	IXP2000_BOARD_IRQ(24)
+#define IRQ_IXDP2X01_CS8900		IXP2000_BOARD_IRQ(25)
+#define IRQ_IXDP2X01_BBSRAM		IXP2000_BOARD_IRQ(26)
+
+#define IXDP2X01_VALID_IRQ_MASK ( \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_DB_0) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_DB_1) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTA) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTB) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTC) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_PMC_INTD) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_SPCI_FIC_INT) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_IPMI_FROM) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_125US) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_DB_0_ADD) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_DB_1_ADD) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_UART1) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_UART2) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_FIC_ADD_INT) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_CS8900) | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2X01_BBSRAM) )
+
+/* 
+ * IXDP2401 specific IRQs
+ */
+#define IRQ_IXDP2401_INTA_82546		IXP2000_BOARD_IRQ(0)
+#define IRQ_IXDP2401_INTB_82546		IXP2000_BOARD_IRQ(1)
+
+#define	IXDP2401_VALID_IRQ_MASK ( \
+		IXDP2X01_VALID_IRQ_MASK | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2401_INTA_82546) |\
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2401_INTB_82546))
+
+/*
+ * IXDP2801-specific IRQs
+ */
+#define IRQ_IXDP2801_RIV		IXP2000_BOARD_IRQ(0)
+#define IRQ_IXDP2801_CNFG_MEDIA		IXP2000_BOARD_IRQ(27)
+#define IRQ_IXDP2801_CLOCK_REF		IXP2000_BOARD_IRQ(28)
+
+#define	IXDP2801_VALID_IRQ_MASK ( \
+		IXDP2X01_VALID_IRQ_MASK | \
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2801_RIV) |\
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2801_CNFG_MEDIA) |\
+		IXP2000_BOARD_IRQ_MASK(IRQ_IXDP2801_CLOCK_REF))
+
+#define	NR_IXDP2X01_IRQS		((IRQ_IXDP2801_CLOCK_REF) + 1)
+
+#endif /*_IRQS_H*/
diff --git a/arch/arm/mach-ixp2000/include/mach/ixdp2x00.h b/arch/arm/mach-ixp2000/include/mach/ixdp2x00.h
new file mode 100644
index 00000000000..5df8479d948
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/ixdp2x00.h
@@ -0,0 +1,92 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/ixdp2x00.h
+ *
+ * Register and other defines for IXDP2[48]00 platforms
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyright (C) 2003-2004 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.
+ */
+#ifndef _IXDP2X00_H_
+#define _IXDP2X00_H_
+
+/*
+ * On board CPLD memory map
+ */
+#define IXDP2X00_PHYS_CPLD_BASE		0xc7000000
+#define IXDP2X00_VIRT_CPLD_BASE		0xfe000000
+#define IXDP2X00_CPLD_SIZE		0x00100000
+
+
+#define IXDP2X00_CPLD_REG(x)  	\
+	(volatile unsigned long *)(IXDP2X00_VIRT_CPLD_BASE | x)
+
+/*
+ * IXDP2400 CPLD registers
+ */
+#define IXDP2400_CPLD_SYSLED		IXDP2X00_CPLD_REG(0x0)  
+#define IXDP2400_CPLD_DISP_DATA		IXDP2X00_CPLD_REG(0x4)
+#define IXDP2400_CPLD_CLOCK_SPEED	IXDP2X00_CPLD_REG(0x8)
+#define IXDP2400_CPLD_INT_STAT		IXDP2X00_CPLD_REG(0xc)
+#define IXDP2400_CPLD_REV		IXDP2X00_CPLD_REG(0x10)
+#define IXDP2400_CPLD_SYS_CLK_M		IXDP2X00_CPLD_REG(0x14)
+#define IXDP2400_CPLD_SYS_CLK_N		IXDP2X00_CPLD_REG(0x18)
+#define IXDP2400_CPLD_INT_MASK		IXDP2X00_CPLD_REG(0x48)
+
+/*
+ * IXDP2800 CPLD registers
+ */
+#define IXDP2800_CPLD_INT_STAT		IXDP2X00_CPLD_REG(0x0)
+#define IXDP2800_CPLD_INT_MASK		IXDP2X00_CPLD_REG(0x140)
+
+
+#define	IXDP2X00_GPIO_I2C_ENABLE	0x02
+#define	IXDP2X00_GPIO_SCL		0x07
+#define	IXDP2X00_GPIO_SDA		0x06
+
+/*
+ * PCI devfns for on-board devices. We need these to be able to
+ * properly translate IRQs and for device removal.
+ */
+#define	IXDP2400_SLAVE_ENET_DEVFN	0x18	/* Bus 1 */
+#define	IXDP2400_MASTER_ENET_DEVFN	0x20	/* Bus 1 */
+#define	IXDP2400_MEDIA_DEVFN		0x28	/* Bus 1 */
+#define	IXDP2400_SWITCH_FABRIC_DEVFN	0x30	/* Bus 1 */
+
+#define	IXDP2800_SLAVE_ENET_DEVFN	0x20	/* Bus 1 */
+#define	IXDP2800_MASTER_ENET_DEVFN	0x18	/* Bus 1 */
+#define	IXDP2800_SWITCH_FABRIC_DEVFN	0x30	/* Bus 1 */
+
+#define	IXDP2X00_P2P_DEVFN		0x20	/* Bus 0 */
+#define	IXDP2X00_21555_DEVFN		0x30	/* Bus 0 */
+#define IXDP2X00_SLAVE_NPU_DEVFN	0x28	/* Bus 1 */
+#define	IXDP2X00_PMC_DEVFN		0x38	/* Bus 1 */
+#define IXDP2X00_MASTER_NPU_DEVFN	0x38	/* Bus 1 */
+
+#ifndef __ASSEMBLY__
+/*
+ * The master NPU is always PCI master.
+ */
+static inline unsigned int ixdp2x00_master_npu(void)
+{
+	return !!ixp2000_is_pcimaster();
+}
+
+/*
+ * Helper functions used by ixdp2400 and ixdp2800 specific code
+ */
+void ixdp2x00_init_irq(volatile unsigned long*, volatile unsigned long *, unsigned long);
+void ixdp2x00_slave_pci_postinit(void);
+void ixdp2x00_init_machine(void);
+void ixdp2x00_map_io(void);
+
+#endif
+
+#endif /*_IXDP2X00_H_ */
diff --git a/arch/arm/mach-ixp2000/include/mach/ixdp2x01.h b/arch/arm/mach-ixp2000/include/mach/ixdp2x01.h
new file mode 100644
index 00000000000..4c1f04083e5
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/ixdp2x01.h
@@ -0,0 +1,57 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/ixdp2x01.h
+ *
+ * Platform definitions for IXDP2X01 && IXDP2801 systems
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2004 (c) MontaVista Software, Inc. 
+ *
+ * Based on original code Copyright (c) 2002-2003 Intel Corporation
+ * 
+ * This file is licensed under  the terms of the GNU General Public 
+ * License version 2. This program is licensed "as is" without any 
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __IXDP2X01_H__
+#define __IXDP2X01_H__
+
+#define	IXDP2X01_PHYS_CPLD_BASE		0xc6024000
+#define	IXDP2X01_VIRT_CPLD_BASE		0xfe000000
+#define	IXDP2X01_CPLD_REGION_SIZE	0x00100000
+
+#define IXDP2X01_CPLD_VIRT_REG(reg) (volatile unsigned long*)(IXDP2X01_VIRT_CPLD_BASE | reg)
+#define IXDP2X01_CPLD_PHYS_REG(reg) (IXDP2X01_PHYS_CPLD_BASE | reg)
+
+#define IXDP2X01_UART1_VIRT_BASE	IXDP2X01_CPLD_VIRT_REG(0x40)
+#define IXDP2X01_UART1_PHYS_BASE	IXDP2X01_CPLD_PHYS_REG(0x40)
+
+#define IXDP2X01_UART2_VIRT_BASE	IXDP2X01_CPLD_VIRT_REG(0x60)
+#define IXDP2X01_UART2_PHYS_BASE	IXDP2X01_CPLD_PHYS_REG(0x60)
+
+#define IXDP2X01_CS8900_VIRT_BASE	IXDP2X01_CPLD_VIRT_REG(0x80)
+#define IXDP2X01_CS8900_VIRT_END	(IXDP2X01_CS8900_VIRT_BASE + 16)
+
+#define IXDP2X01_CPLD_RESET_REG         IXDP2X01_CPLD_VIRT_REG(0x00)
+#define IXDP2X01_INT_MASK_SET_REG	IXDP2X01_CPLD_VIRT_REG(0x08)
+#define IXDP2X01_INT_STAT_REG		IXDP2X01_CPLD_VIRT_REG(0x0C)
+#define IXDP2X01_INT_RAW_REG		IXDP2X01_CPLD_VIRT_REG(0x10) 
+#define IXDP2X01_INT_MASK_CLR_REG	IXDP2X01_INT_RAW_REG
+#define IXDP2X01_INT_SIM_REG		IXDP2X01_CPLD_VIRT_REG(0x14)
+
+#define IXDP2X01_CPLD_FLASH_REG		IXDP2X01_CPLD_VIRT_REG(0x20)
+
+#define IXDP2X01_CPLD_FLASH_INTERN 	0x8000
+#define IXDP2X01_CPLD_FLASH_BANK_MASK 	0xF
+#define IXDP2X01_FLASH_WINDOW_BITS 	25
+#define IXDP2X01_FLASH_WINDOW_SIZE 	(1 << IXDP2X01_FLASH_WINDOW_BITS)
+#define IXDP2X01_FLASH_WINDOW_MASK 	(IXDP2X01_FLASH_WINDOW_SIZE - 1)
+
+#define	IXDP2X01_UART_CLK		1843200
+
+#define	IXDP2X01_GPIO_I2C_ENABLE	0x02
+#define	IXDP2X01_GPIO_SCL		0x07
+#define	IXDP2X01_GPIO_SDA		0x06
+
+#endif /* __IXDP2x01_H__ */
diff --git a/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h b/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
new file mode 100644
index 00000000000..19d80379a3e
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
@@ -0,0 +1,457 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/ixp2000-regs.h
+ *
+ * Chipset register definitions for IXP2400/2800 based systems.
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ *
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyright (C) 2003-2004 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.
+ */
+#ifndef _IXP2000_REGS_H_
+#define _IXP2000_REGS_H_
+
+/*
+ * IXP2000 linux memory map:
+ *
+ * virt		phys		size
+ * fb000000	db000000	16M		PCI CFG1
+ * fc000000	da000000	16M		PCI CFG0
+ * fd000000	d8000000	16M		PCI I/O
+ * fe[0-7]00000			8M		per-platform mappings
+ * fe900000	80000000	1M		SRAM #0 (first MB)
+ * fea00000	cb400000	1M		SCRATCH ring get/put
+ * feb00000	c8000000	1M		MSF
+ * fec00000	df000000	1M		PCI CSRs
+ * fed00000	de000000	1M		PCI CREG
+ * fee00000	d6000000	1M		INTCTL
+ * fef00000	c0000000	1M		CAP
+ */
+
+/* 
+ * Static I/O regions.
+ *
+ * Most of the registers are clumped in 4K regions spread throughout
+ * the 0xc0000000 -> 0xc0100000 address range, but we just map in
+ * the whole range using a single 1 MB section instead of small
+ * 4K pages.  This has two advantages for us:
+ *
+ * 1) We use only one TLB entry for large number of on-chip I/O devices.
+ *
+ * 2) We can easily set the Section attributes to XCB=101 on the IXP2400
+ *    as required per erratum #66.  We accomplish this by using a
+ *    new MT_IXP2000_DEVICE memory type with the bits set as required.
+ *
+ * CAP stands for CSR Access Proxy.
+ *
+ * If you change the virtual address of this mapping, please propagate
+ * the change to arch/arm/kernel/debug.S, which hardcodes the virtual
+ * address of the UART located in this region.
+ */
+
+#define	IXP2000_CAP_PHYS_BASE		0xc0000000
+#define	IXP2000_CAP_VIRT_BASE		0xfef00000
+#define	IXP2000_CAP_SIZE		0x00100000
+
+/*
+ * Addresses for specific on-chip peripherals.
+ */
+#define	IXP2000_SLOWPORT_CSR_VIRT_BASE	0xfef80000
+#define	IXP2000_GLOBAL_REG_VIRT_BASE	0xfef04000
+#define	IXP2000_UART_PHYS_BASE		0xc0030000
+#define	IXP2000_UART_VIRT_BASE		0xfef30000
+#define	IXP2000_TIMER_VIRT_BASE		0xfef20000
+#define	IXP2000_UENGINE_CSR_VIRT_BASE	0xfef18000
+#define	IXP2000_GPIO_VIRT_BASE		0xfef10000
+
+/*
+ * Devices outside of the 0xc0000000 -> 0xc0100000 range.  The virtual
+ * addresses of the INTCTL and PCI_CSR mappings are hardcoded in
+ * entry-macro.S, so if you ever change these please propagate
+ * the change.
+ */
+#define IXP2000_INTCTL_PHYS_BASE	0xd6000000
+#define	IXP2000_INTCTL_VIRT_BASE	0xfee00000
+#define	IXP2000_INTCTL_SIZE		0x00100000
+
+#define IXP2000_PCI_CREG_PHYS_BASE	0xde000000
+#define	IXP2000_PCI_CREG_VIRT_BASE	0xfed00000
+#define	IXP2000_PCI_CREG_SIZE		0x00100000
+
+#define IXP2000_PCI_CSR_PHYS_BASE	0xdf000000
+#define	IXP2000_PCI_CSR_VIRT_BASE	0xfec00000
+#define	IXP2000_PCI_CSR_SIZE		0x00100000
+
+#define IXP2000_MSF_PHYS_BASE		0xc8000000
+#define IXP2000_MSF_VIRT_BASE		0xfeb00000
+#define IXP2000_MSF_SIZE		0x00100000
+
+#define IXP2000_SCRATCH_RING_PHYS_BASE	0xcb400000
+#define IXP2000_SCRATCH_RING_VIRT_BASE	0xfea00000
+#define IXP2000_SCRATCH_RING_SIZE	0x00100000
+
+#define IXP2000_SRAM0_PHYS_BASE		0x80000000
+#define IXP2000_SRAM0_VIRT_BASE		0xfe900000
+#define IXP2000_SRAM0_SIZE		0x00100000
+
+#define IXP2000_PCI_IO_PHYS_BASE	0xd8000000
+#define	IXP2000_PCI_IO_VIRT_BASE	0xfd000000
+#define IXP2000_PCI_IO_SIZE     	0x01000000
+
+#define IXP2000_PCI_CFG0_PHYS_BASE	0xda000000
+#define IXP2000_PCI_CFG0_VIRT_BASE	0xfc000000
+#define IXP2000_PCI_CFG0_SIZE   	0x01000000
+
+#define IXP2000_PCI_CFG1_PHYS_BASE	0xdb000000
+#define IXP2000_PCI_CFG1_VIRT_BASE	0xfb000000
+#define IXP2000_PCI_CFG1_SIZE		0x01000000
+
+/* 
+ * Timers
+ */
+#define	IXP2000_TIMER_REG(x)		((volatile unsigned long*)(IXP2000_TIMER_VIRT_BASE | (x)))
+/* Timer control */
+#define	IXP2000_T1_CTL			IXP2000_TIMER_REG(0x00)
+#define	IXP2000_T2_CTL			IXP2000_TIMER_REG(0x04)
+#define	IXP2000_T3_CTL			IXP2000_TIMER_REG(0x08)
+#define	IXP2000_T4_CTL			IXP2000_TIMER_REG(0x0c)
+/* Store initial value */
+#define	IXP2000_T1_CLD			IXP2000_TIMER_REG(0x10)
+#define	IXP2000_T2_CLD			IXP2000_TIMER_REG(0x14)
+#define	IXP2000_T3_CLD			IXP2000_TIMER_REG(0x18)
+#define	IXP2000_T4_CLD			IXP2000_TIMER_REG(0x1c)
+/* Read current value */
+#define	IXP2000_T1_CSR			IXP2000_TIMER_REG(0x20)
+#define	IXP2000_T2_CSR			IXP2000_TIMER_REG(0x24)
+#define	IXP2000_T3_CSR			IXP2000_TIMER_REG(0x28)
+#define	IXP2000_T4_CSR			IXP2000_TIMER_REG(0x2c)
+/* Clear associated timer interrupt */
+#define	IXP2000_T1_CLR			IXP2000_TIMER_REG(0x30)
+#define	IXP2000_T2_CLR			IXP2000_TIMER_REG(0x34)
+#define	IXP2000_T3_CLR			IXP2000_TIMER_REG(0x38)
+#define	IXP2000_T4_CLR			IXP2000_TIMER_REG(0x3c)
+/* Timer watchdog enable for T4 */
+#define	IXP2000_TWDE			IXP2000_TIMER_REG(0x40)
+
+#define	WDT_ENABLE			0x00000001
+#define	TIMER_DIVIDER_256		0x00000008
+#define	TIMER_ENABLE			0x00000080
+#define	IRQ_MASK_TIMER1         	(1 << 4)
+
+/*
+ * Interrupt controller registers
+ */
+#define IXP2000_INTCTL_REG(x)		(volatile unsigned long*)(IXP2000_INTCTL_VIRT_BASE | (x))
+#define IXP2000_IRQ_STATUS		IXP2000_INTCTL_REG(0x08)
+#define IXP2000_IRQ_ENABLE		IXP2000_INTCTL_REG(0x10)
+#define IXP2000_IRQ_ENABLE_SET		IXP2000_INTCTL_REG(0x10)
+#define IXP2000_IRQ_ENABLE_CLR		IXP2000_INTCTL_REG(0x18)
+#define IXP2000_FIQ_ENABLE_CLR		IXP2000_INTCTL_REG(0x14)
+#define IXP2000_IRQ_ERR_STATUS		IXP2000_INTCTL_REG(0x24)
+#define IXP2000_IRQ_ERR_ENABLE_SET	IXP2000_INTCTL_REG(0x2c)
+#define IXP2000_FIQ_ERR_ENABLE_CLR	IXP2000_INTCTL_REG(0x30)
+#define IXP2000_IRQ_ERR_ENABLE_CLR	IXP2000_INTCTL_REG(0x34)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_0	IXP2000_INTCTL_REG(0x60)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_1	IXP2000_INTCTL_REG(0x64)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_2	IXP2000_INTCTL_REG(0x68)
+#define IXP2000_IRQ_THD_RAW_STATUS_A_3	IXP2000_INTCTL_REG(0x6c)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_0	IXP2000_INTCTL_REG(0x80)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_1	IXP2000_INTCTL_REG(0x84)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_2	IXP2000_INTCTL_REG(0x88)
+#define IXP2000_IRQ_THD_RAW_STATUS_B_3	IXP2000_INTCTL_REG(0x8c)
+#define IXP2000_IRQ_THD_STATUS_A_0	IXP2000_INTCTL_REG(0xe0)
+#define IXP2000_IRQ_THD_STATUS_A_1	IXP2000_INTCTL_REG(0xe4)
+#define IXP2000_IRQ_THD_STATUS_A_2	IXP2000_INTCTL_REG(0xe8)
+#define IXP2000_IRQ_THD_STATUS_A_3	IXP2000_INTCTL_REG(0xec)
+#define IXP2000_IRQ_THD_STATUS_B_0	IXP2000_INTCTL_REG(0x100)
+#define IXP2000_IRQ_THD_STATUS_B_1	IXP2000_INTCTL_REG(0x104)
+#define IXP2000_IRQ_THD_STATUS_B_2	IXP2000_INTCTL_REG(0x108)
+#define IXP2000_IRQ_THD_STATUS_B_3	IXP2000_INTCTL_REG(0x10c)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_0	IXP2000_INTCTL_REG(0x160)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_1	IXP2000_INTCTL_REG(0x164)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_2	IXP2000_INTCTL_REG(0x168)
+#define IXP2000_IRQ_THD_ENABLE_SET_A_3	IXP2000_INTCTL_REG(0x16c)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_0	IXP2000_INTCTL_REG(0x180)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_1	IXP2000_INTCTL_REG(0x184)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_2	IXP2000_INTCTL_REG(0x188)
+#define IXP2000_IRQ_THD_ENABLE_SET_B_3	IXP2000_INTCTL_REG(0x18c)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_0	IXP2000_INTCTL_REG(0x1e0)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_1	IXP2000_INTCTL_REG(0x1e4)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_2	IXP2000_INTCTL_REG(0x1e8)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_A_3	IXP2000_INTCTL_REG(0x1ec)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_0	IXP2000_INTCTL_REG(0x200)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_1	IXP2000_INTCTL_REG(0x204)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_2	IXP2000_INTCTL_REG(0x208)
+#define IXP2000_IRQ_THD_ENABLE_CLEAR_B_3	IXP2000_INTCTL_REG(0x20c)
+
+/*
+ * Mask of valid IRQs in the 32-bit IRQ register. We use
+ * this to mark certain IRQs as being invalid.
+ */
+#define	IXP2000_VALID_IRQ_MASK	0x0f0fffff
+
+/*
+ * PCI config register access from core
+ */
+#define IXP2000_PCI_CREG(x)		(volatile unsigned long*)(IXP2000_PCI_CREG_VIRT_BASE | (x))
+#define IXP2000_PCI_CMDSTAT 		IXP2000_PCI_CREG(0x04)
+#define IXP2000_PCI_CSR_BAR		IXP2000_PCI_CREG(0x10)
+#define IXP2000_PCI_SRAM_BAR		IXP2000_PCI_CREG(0x14)
+#define IXP2000_PCI_SDRAM_BAR		IXP2000_PCI_CREG(0x18)
+
+/*
+ * PCI CSRs
+ */
+#define IXP2000_PCI_CSR(x)		(volatile unsigned long*)(IXP2000_PCI_CSR_VIRT_BASE | (x))
+
+/*
+ * PCI outbound interrupts
+ */
+#define IXP2000_PCI_OUT_INT_STATUS	IXP2000_PCI_CSR(0x30)
+#define IXP2000_PCI_OUT_INT_MASK	IXP2000_PCI_CSR(0x34)
+/*
+ * PCI communications
+ */
+#define IXP2000_PCI_MAILBOX0		IXP2000_PCI_CSR(0x50)
+#define IXP2000_PCI_MAILBOX1		IXP2000_PCI_CSR(0x54)
+#define IXP2000_PCI_MAILBOX2		IXP2000_PCI_CSR(0x58)
+#define IXP2000_PCI_MAILBOX3		IXP2000_PCI_CSR(0x5C)
+#define IXP2000_XSCALE_DOORBELL		IXP2000_PCI_CSR(0x60)
+#define IXP2000_XSCALE_DOORBELL_SETUP	IXP2000_PCI_CSR(0x64)
+#define IXP2000_PCI_DOORBELL		IXP2000_PCI_CSR(0x70)
+#define IXP2000_PCI_DOORBELL_SETUP	IXP2000_PCI_CSR(0x74)
+
+/*
+ * DMA engines
+ */
+#define IXP2000_PCI_CH1_BYTE_CNT	IXP2000_PCI_CSR(0x80)
+#define IXP2000_PCI_CH1_ADDR		IXP2000_PCI_CSR(0x84)
+#define IXP2000_PCI_CH1_DRAM_ADDR	IXP2000_PCI_CSR(0x88)
+#define IXP2000_PCI_CH1_DESC_PTR	IXP2000_PCI_CSR(0x8C)
+#define IXP2000_PCI_CH1_CNTRL		IXP2000_PCI_CSR(0x90)
+#define IXP2000_PCI_CH1_ME_PARAM	IXP2000_PCI_CSR(0x94)
+#define IXP2000_PCI_CH2_BYTE_CNT	IXP2000_PCI_CSR(0xA0)
+#define IXP2000_PCI_CH2_ADDR		IXP2000_PCI_CSR(0xA4)
+#define IXP2000_PCI_CH2_DRAM_ADDR	IXP2000_PCI_CSR(0xA8)
+#define IXP2000_PCI_CH2_DESC_PTR	IXP2000_PCI_CSR(0xAC)
+#define IXP2000_PCI_CH2_CNTRL		IXP2000_PCI_CSR(0xB0)
+#define IXP2000_PCI_CH2_ME_PARAM	IXP2000_PCI_CSR(0xB4)
+#define IXP2000_PCI_CH3_BYTE_CNT	IXP2000_PCI_CSR(0xC0)
+#define IXP2000_PCI_CH3_ADDR		IXP2000_PCI_CSR(0xC4)
+#define IXP2000_PCI_CH3_DRAM_ADDR	IXP2000_PCI_CSR(0xC8)
+#define IXP2000_PCI_CH3_DESC_PTR	IXP2000_PCI_CSR(0xCC)
+#define IXP2000_PCI_CH3_CNTRL		IXP2000_PCI_CSR(0xD0)
+#define IXP2000_PCI_CH3_ME_PARAM	IXP2000_PCI_CSR(0xD4)
+#define IXP2000_DMA_INF_MODE		IXP2000_PCI_CSR(0xE0)
+/*
+ * Size masks for BARs
+ */
+#define IXP2000_PCI_SRAM_BASE_ADDR_MASK	IXP2000_PCI_CSR(0xFC)
+#define IXP2000_PCI_DRAM_BASE_ADDR_MASK	IXP2000_PCI_CSR(0x100)
+/*
+ * Control and uEngine related
+ */
+#define IXP2000_PCI_CONTROL		IXP2000_PCI_CSR(0x13C)
+#define IXP2000_PCI_ADDR_EXT		IXP2000_PCI_CSR(0x140)
+#define IXP2000_PCI_ME_PUSH_STATUS	IXP2000_PCI_CSR(0x148)
+#define IXP2000_PCI_ME_PUSH_EN		IXP2000_PCI_CSR(0x14C)
+#define IXP2000_PCI_ERR_STATUS		IXP2000_PCI_CSR(0x150)
+#define IXP2000_PCI_ERR_ENABLE		IXP2000_PCI_CSR(0x154)
+/*
+ * Inbound PCI interrupt control
+ */
+#define IXP2000_PCI_XSCALE_INT_STATUS	IXP2000_PCI_CSR(0x158)
+#define IXP2000_PCI_XSCALE_INT_ENABLE	IXP2000_PCI_CSR(0x15C)
+
+#define IXP2000_PCICNTL_PNR		(1<<17)	/* PCI not Reset bit of PCI_CONTROL */
+#define IXP2000_PCICNTL_PCF		(1<<28)	/* PCI Central function bit */
+#define IXP2000_XSCALE_INT		(1<<1)	/* Interrupt from XScale to PCI */
+
+/* These are from the IRQ register in the PCI ISR register */
+#define PCI_CONTROL_BE_DEO		(1 << 22)	/* Big Endian Data Enable Out */
+#define PCI_CONTROL_BE_DEI		(1 << 21)	/* Big Endian Data Enable In  */
+#define PCI_CONTROL_BE_BEO		(1 << 20)	/* Big Endian Byte Enable Out */
+#define PCI_CONTROL_BE_BEI		(1 << 19)	/* Big Endian Byte Enable In  */
+#define PCI_CONTROL_IEE			(1 << 17)	/* I/O cycle Endian swap Enable */
+
+#define IXP2000_PCI_RST_REL		(1 << 2)
+#define CFG_RST_DIR			(*IXP2000_PCI_CONTROL & IXP2000_PCICNTL_PCF)
+#define CFG_PCI_BOOT_HOST		(1 << 2)
+#define CFG_BOOT_PROM			(1 << 1)
+
+/*
+ * SlowPort CSRs
+ *
+ * The slowport is used to access things like flash, SONET framer control
+ * ports, slave microprocessors, CPLDs, and others of chip memory mapped
+ * peripherals.
+ */
+#define	SLOWPORT_CSR(x)		(volatile unsigned long*)(IXP2000_SLOWPORT_CSR_VIRT_BASE | (x))
+
+#define	IXP2000_SLOWPORT_CCR		SLOWPORT_CSR(0x00)
+#define	IXP2000_SLOWPORT_WTC1		SLOWPORT_CSR(0x04)
+#define	IXP2000_SLOWPORT_WTC2		SLOWPORT_CSR(0x08)
+#define	IXP2000_SLOWPORT_RTC1		SLOWPORT_CSR(0x0c)
+#define	IXP2000_SLOWPORT_RTC2		SLOWPORT_CSR(0x10)
+#define	IXP2000_SLOWPORT_FSR		SLOWPORT_CSR(0x14)
+#define	IXP2000_SLOWPORT_PCR		SLOWPORT_CSR(0x18)
+#define	IXP2000_SLOWPORT_ADC		SLOWPORT_CSR(0x1C)
+#define	IXP2000_SLOWPORT_FAC		SLOWPORT_CSR(0x20)
+#define	IXP2000_SLOWPORT_FRM		SLOWPORT_CSR(0x24)
+#define	IXP2000_SLOWPORT_FIN		SLOWPORT_CSR(0x28)
+
+/*
+ * CCR values.  
+ * The CCR configures the clock division for the slowport interface.
+ */
+#define	SLOWPORT_CCR_DIV_1		0x00
+#define	SLOWPORT_CCR_DIV_2		0x01
+#define	SLOWPORT_CCR_DIV_4		0x02
+#define	SLOWPORT_CCR_DIV_6		0x03
+#define	SLOWPORT_CCR_DIV_8		0x04
+#define	SLOWPORT_CCR_DIV_10		0x05
+#define	SLOWPORT_CCR_DIV_12		0x06
+#define	SLOWPORT_CCR_DIV_14		0x07
+#define	SLOWPORT_CCR_DIV_16		0x08
+#define	SLOWPORT_CCR_DIV_18		0x09
+#define	SLOWPORT_CCR_DIV_20		0x0a
+#define	SLOWPORT_CCR_DIV_22		0x0b
+#define	SLOWPORT_CCR_DIV_24		0x0c
+#define	SLOWPORT_CCR_DIV_26		0x0d
+#define	SLOWPORT_CCR_DIV_28		0x0e
+#define	SLOWPORT_CCR_DIV_30		0x0f
+
+/*
+ * PCR values.  PCR configure the mode of the interface.
+ */
+#define	SLOWPORT_MODE_FLASH		0x00
+#define	SLOWPORT_MODE_LUCENT		0x01
+#define	SLOWPORT_MODE_PMC_SIERRA	0x02
+#define	SLOWPORT_MODE_INTEL_UP		0x03
+#define	SLOWPORT_MODE_MOTOROLA_UP	0x04
+
+/*
+ * ADC values.  Defines data and address bus widths.
+ */
+#define	SLOWPORT_ADDR_WIDTH_8		0x00
+#define	SLOWPORT_ADDR_WIDTH_16		0x01
+#define	SLOWPORT_ADDR_WIDTH_24		0x02
+#define	SLOWPORT_ADDR_WIDTH_32		0x03
+#define	SLOWPORT_DATA_WIDTH_8		0x00
+#define	SLOWPORT_DATA_WIDTH_16		0x10
+#define	SLOWPORT_DATA_WIDTH_24		0x20
+#define	SLOWPORT_DATA_WIDTH_32		0x30
+
+/*
+ * Masks and shifts for various fields in the WTC and RTC registers.
+ */
+#define	SLOWPORT_WRTC_MASK_HD		0x0003
+#define	SLOWPORT_WRTC_MASK_PW		0x003c
+#define	SLOWPORT_WRTC_MASK_SU		0x03c0
+
+#define	SLOWPORT_WRTC_SHIFT_HD		0x00
+#define	SLOWPORT_WRTC_SHIFT_SU		0x02
+#define	SLOWPORT_WRTC_SHFIT_PW		0x06
+
+
+/*
+ * GPIO registers & GPIO interface.
+ */
+#define IXP2000_GPIO_REG(x)		((volatile unsigned long*)(IXP2000_GPIO_VIRT_BASE+(x)))
+#define IXP2000_GPIO_PLR		IXP2000_GPIO_REG(0x00)
+#define IXP2000_GPIO_PDPR		IXP2000_GPIO_REG(0x04)
+#define IXP2000_GPIO_PDSR		IXP2000_GPIO_REG(0x08)
+#define IXP2000_GPIO_PDCR		IXP2000_GPIO_REG(0x0c)
+#define IXP2000_GPIO_POPR		IXP2000_GPIO_REG(0x10)
+#define IXP2000_GPIO_POSR		IXP2000_GPIO_REG(0x14)
+#define IXP2000_GPIO_POCR		IXP2000_GPIO_REG(0x18)
+#define IXP2000_GPIO_REDR		IXP2000_GPIO_REG(0x1c)
+#define IXP2000_GPIO_FEDR		IXP2000_GPIO_REG(0x20)
+#define IXP2000_GPIO_EDSR		IXP2000_GPIO_REG(0x24)
+#define IXP2000_GPIO_LSHR		IXP2000_GPIO_REG(0x28)
+#define IXP2000_GPIO_LSLR		IXP2000_GPIO_REG(0x2c)
+#define IXP2000_GPIO_LDSR		IXP2000_GPIO_REG(0x30)
+#define IXP2000_GPIO_INER		IXP2000_GPIO_REG(0x34)
+#define IXP2000_GPIO_INSR		IXP2000_GPIO_REG(0x38)
+#define IXP2000_GPIO_INCR		IXP2000_GPIO_REG(0x3c)
+#define IXP2000_GPIO_INST		IXP2000_GPIO_REG(0x40)
+
+/*
+ * "Global" registers...whatever that's supposed to mean.
+ */
+#define GLOBAL_REG_BASE			(IXP2000_GLOBAL_REG_VIRT_BASE + 0x0a00)
+#define GLOBAL_REG(x)			(volatile unsigned long*)(GLOBAL_REG_BASE | (x))
+
+#define IXP2000_MAJ_PROD_TYPE_MASK	0x001F0000
+#define IXP2000_MAJ_PROD_TYPE_IXP2000	0x00000000
+#define IXP2000_MIN_PROD_TYPE_MASK 	0x0000FF00
+#define IXP2000_MIN_PROD_TYPE_IXP2400	0x00000200
+#define IXP2000_MIN_PROD_TYPE_IXP2850	0x00000100
+#define IXP2000_MIN_PROD_TYPE_IXP2800	0x00000000
+#define IXP2000_MAJ_REV_MASK	      	0x000000F0
+#define IXP2000_MIN_REV_MASK	      	0x0000000F
+#define IXP2000_PROD_ID_MASK		0xFFFFFFFF
+
+#define IXP2000_PRODUCT_ID		GLOBAL_REG(0x00)
+#define IXP2000_MISC_CONTROL		GLOBAL_REG(0x04)
+#define IXP2000_MSF_CLK_CNTRL  		GLOBAL_REG(0x08)
+#define IXP2000_RESET0      		GLOBAL_REG(0x0c)
+#define IXP2000_RESET1      		GLOBAL_REG(0x10)
+#define IXP2000_CCR            		GLOBAL_REG(0x14)
+#define	IXP2000_STRAP_OPTIONS  		GLOBAL_REG(0x18)
+
+#define	RSTALL				(1 << 16)
+#define	WDT_RESET_ENABLE		0x01000000
+
+
+/*
+ * MSF registers.  The IXP2400 and IXP2800 have somewhat different MSF
+ * units, but the registers that differ between the two don't overlap,
+ * so we can have one register list for both.
+ */
+#define IXP2000_MSF_REG(x)			((volatile unsigned long*)(IXP2000_MSF_VIRT_BASE + (x)))
+#define IXP2000_MSF_RX_CONTROL			IXP2000_MSF_REG(0x0000)
+#define IXP2000_MSF_TX_CONTROL			IXP2000_MSF_REG(0x0004)
+#define IXP2000_MSF_INTERRUPT_STATUS		IXP2000_MSF_REG(0x0008)
+#define IXP2000_MSF_INTERRUPT_ENABLE		IXP2000_MSF_REG(0x000c)
+#define IXP2000_MSF_CSIX_TYPE_MAP		IXP2000_MSF_REG(0x0010)
+#define IXP2000_MSF_FC_EGRESS_STATUS		IXP2000_MSF_REG(0x0014)
+#define IXP2000_MSF_FC_INGRESS_STATUS		IXP2000_MSF_REG(0x0018)
+#define IXP2000_MSF_HWM_CONTROL			IXP2000_MSF_REG(0x0024)
+#define IXP2000_MSF_FC_STATUS_OVERRIDE		IXP2000_MSF_REG(0x0028)
+#define IXP2000_MSF_CLOCK_CONTROL		IXP2000_MSF_REG(0x002c)
+#define IXP2000_MSF_RX_PORT_MAP			IXP2000_MSF_REG(0x0040)
+#define IXP2000_MSF_RBUF_ELEMENT_DONE		IXP2000_MSF_REG(0x0044)
+#define IXP2000_MSF_RX_MPHY_POLL_LIMIT		IXP2000_MSF_REG(0x0048)
+#define IXP2000_MSF_RX_CALENDAR_LENGTH		IXP2000_MSF_REG(0x0048)
+#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_0	IXP2000_MSF_REG(0x0050)
+#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_1	IXP2000_MSF_REG(0x0054)
+#define IXP2000_MSF_RX_THREAD_FREELIST_TIMEOUT_2	IXP2000_MSF_REG(0x0058)
+#define IXP2000_MSF_TX_SEQUENCE_0		IXP2000_MSF_REG(0x0060)
+#define IXP2000_MSF_TX_SEQUENCE_1		IXP2000_MSF_REG(0x0064)
+#define IXP2000_MSF_TX_SEQUENCE_2		IXP2000_MSF_REG(0x0068)
+#define IXP2000_MSF_TX_MPHY_POLL_LIMIT		IXP2000_MSF_REG(0x0070)
+#define IXP2000_MSF_TX_CALENDAR_LENGTH		IXP2000_MSF_REG(0x0070)
+#define IXP2000_MSF_RX_UP_CONTROL_0		IXP2000_MSF_REG(0x0080)
+#define IXP2000_MSF_RX_UP_CONTROL_1		IXP2000_MSF_REG(0x0084)
+#define IXP2000_MSF_RX_UP_CONTROL_2		IXP2000_MSF_REG(0x0088)
+#define IXP2000_MSF_RX_UP_CONTROL_3		IXP2000_MSF_REG(0x008c)
+#define IXP2000_MSF_TX_UP_CONTROL_0		IXP2000_MSF_REG(0x0090)
+#define IXP2000_MSF_TX_UP_CONTROL_1		IXP2000_MSF_REG(0x0094)
+#define IXP2000_MSF_TX_UP_CONTROL_2		IXP2000_MSF_REG(0x0098)
+#define IXP2000_MSF_TX_UP_CONTROL_3		IXP2000_MSF_REG(0x009c)
+#define IXP2000_MSF_TRAIN_DATA			IXP2000_MSF_REG(0x00a0)
+#define IXP2000_MSF_TRAIN_CALENDAR		IXP2000_MSF_REG(0x00a4)
+#define IXP2000_MSF_TRAIN_FLOW_CONTROL		IXP2000_MSF_REG(0x00a8)
+#define IXP2000_MSF_TX_CALENDAR_0		IXP2000_MSF_REG(0x1000)
+#define IXP2000_MSF_RX_PORT_CALENDAR_STATUS	IXP2000_MSF_REG(0x1400)
+
+
+#endif				/* _IXP2000_H_ */
diff --git a/arch/arm/mach-ixp2000/include/mach/memory.h b/arch/arm/mach-ixp2000/include/mach/memory.h
new file mode 100644
index 00000000000..241529a7c52
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/memory.h
@@ -0,0 +1,34 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/memory.h
+ *
+ * Copyright (c) 2002 Intel Corp.
+ * Copyright (c) 2003-2004 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.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#define PHYS_OFFSET	UL(0x00000000)
+
+/*
+ * Virtual view <-> DMA view memory address translations
+ * virt_to_bus: Used to translate the virtual address to an
+ *		address suitable to be passed to set_dma_addr
+ * bus_to_virt: Used to convert an address for DMA operations
+ *		to an address that the kernel can use.
+ */
+#include <mach/ixp2000-regs.h>
+
+#define __virt_to_bus(v) \
+	(((__virt_to_phys(v) - 0x0) + (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)))
+
+#define __bus_to_virt(b) \
+	__phys_to_virt((((b - (*IXP2000_PCI_SDRAM_BAR & 0xfffffff0)) + 0x0)))
+
+#endif
+
diff --git a/arch/arm/mach-ixp2000/include/mach/platform.h b/arch/arm/mach-ixp2000/include/mach/platform.h
new file mode 100644
index 00000000000..42182c79ed9
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/platform.h
@@ -0,0 +1,152 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/platform.h
+ *
+ * Various bits of code used by platform-level code.
+ *
+ * Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2004 (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.
+ */
+
+
+#ifndef __ASSEMBLY__
+
+static inline unsigned long ixp2000_reg_read(volatile void *reg)
+{
+	return *((volatile unsigned long *)reg);
+}
+
+static inline void ixp2000_reg_write(volatile void *reg, unsigned long val)
+{
+	*((volatile unsigned long *)reg) = val;
+}
+
+/*
+ * On the IXP2400, we can't use XCB=000 due to chip bugs.  We use
+ * XCB=101 instead, but that makes all I/O accesses bufferable.  This
+ * is not a problem in general, but we do have to be slightly more
+ * careful because I/O writes are no longer automatically flushed out
+ * of the write buffer.
+ *
+ * In cases where we want to make sure that a write has been flushed
+ * out of the write buffer before we proceed, for example when masking
+ * a device interrupt before re-enabling IRQs in CPSR, we can use this
+ * function, ixp2000_reg_wrb, which performs a write, a readback, and
+ * issues a dummy instruction dependent on the value of the readback
+ * (mov rX, rX) to make sure that the readback has completed before we
+ * continue.
+ */
+static inline void ixp2000_reg_wrb(volatile void *reg, unsigned long val)
+{
+	unsigned long dummy;
+
+	*((volatile unsigned long *)reg) = val;
+
+	dummy = *((volatile unsigned long *)reg);
+	__asm__ __volatile__("mov %0, %0" : "+r" (dummy));
+}
+
+/*
+ * Boards may multiplex different devices on the 2nd channel of 
+ * the slowport interface that each need different configuration 
+ * settings.  For example, the IXDP2400 uses channel 2 on the interface 
+ * to access the CPLD, the switch fabric card, and the media card.  Each
+ * one needs a different mode so drivers must save/restore the mode 
+ * before and after each operation.  
+ *
+ * acquire_slowport(&your_config);
+ * ...
+ * do slowport operations
+ * ...
+ * release_slowport();
+ *
+ * Note that while you have the slowport, you are holding a spinlock,
+ * so your code should be written as if you explicitly acquired a lock.
+ *
+ * The configuration only affects device 2 on the slowport, so the
+ * MTD map driver does not acquire/release the slowport.  
+ */
+struct slowport_cfg {
+	unsigned long CCR;	/* Clock divide */
+	unsigned long WTC;	/* Write Timing Control */
+	unsigned long RTC;	/* Read Timing Control */
+	unsigned long PCR;	/* Protocol Control Register */
+	unsigned long ADC;	/* Address/Data Width Control */
+};
+
+
+void ixp2000_acquire_slowport(struct slowport_cfg *, struct slowport_cfg *);
+void ixp2000_release_slowport(struct slowport_cfg *);
+
+/*
+ * IXP2400 A0/A1 and  IXP2800 A0/A1/A2 have broken slowport that requires
+ * tweaking of addresses in the MTD driver.
+ */
+static inline unsigned ixp2000_has_broken_slowport(void)
+{
+	unsigned long id = *IXP2000_PRODUCT_ID;
+	unsigned long id_prod = id & (IXP2000_MAJ_PROD_TYPE_MASK |
+				      IXP2000_MIN_PROD_TYPE_MASK);
+	return (((id_prod ==
+		  /* fixed in IXP2400-B0 */
+		  (IXP2000_MAJ_PROD_TYPE_IXP2000 |
+		   IXP2000_MIN_PROD_TYPE_IXP2400)) &&
+		 ((id & IXP2000_MAJ_REV_MASK) == 0)) ||
+		((id_prod ==
+		  /* fixed in IXP2800-B0 */
+		  (IXP2000_MAJ_PROD_TYPE_IXP2000 |
+		   IXP2000_MIN_PROD_TYPE_IXP2800)) &&
+		 ((id & IXP2000_MAJ_REV_MASK) == 0)) ||
+		((id_prod ==
+		  /* fixed in IXP2850-B0 */
+		  (IXP2000_MAJ_PROD_TYPE_IXP2000 |
+		   IXP2000_MIN_PROD_TYPE_IXP2850)) &&
+		 ((id & IXP2000_MAJ_REV_MASK) == 0)));
+}
+
+static inline unsigned int ixp2000_has_flash(void)
+{
+	return ((*IXP2000_STRAP_OPTIONS) & (CFG_BOOT_PROM));
+}
+
+static inline unsigned int ixp2000_is_pcimaster(void)
+{
+	return ((*IXP2000_STRAP_OPTIONS) & (CFG_PCI_BOOT_HOST));
+}
+
+void ixp2000_map_io(void);
+void ixp2000_uart_init(void);
+void ixp2000_init_irq(void);
+void ixp2000_init_time(unsigned long);
+unsigned long ixp2000_gettimeoffset(void);
+
+struct pci_sys_data;
+
+u32 *ixp2000_pci_config_addr(unsigned int bus, unsigned int devfn, int where);
+void ixp2000_pci_preinit(void);
+int ixp2000_pci_setup(int, struct pci_sys_data*);
+struct pci_bus* ixp2000_pci_scan_bus(int, struct pci_sys_data*);
+int ixp2000_pci_read_config(struct pci_bus*, unsigned int, int, int, u32 *);
+int ixp2000_pci_write_config(struct pci_bus*, unsigned int, int, int, u32);
+
+/*
+ * Several of the IXP2000 systems have banked flash so we need to extend the
+ * flash_platform_data structure with some private pointers
+ */
+struct ixp2000_flash_data {
+	struct flash_platform_data *platform_data;
+	int nr_banks;
+	unsigned long (*bank_setup)(unsigned long);
+};
+
+struct ixp2000_i2c_pins {
+	unsigned long sda_pin;
+	unsigned long scl_pin;
+};
+
+
+#endif /*  !__ASSEMBLY__ */
diff --git a/arch/arm/mach-ixp2000/include/mach/system.h b/arch/arm/mach-ixp2000/include/mach/system.h
new file mode 100644
index 00000000000..2e9c68f95a2
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/system.h
@@ -0,0 +1,49 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/system.h
+ *
+ * Copyright (C) 2002 Intel Corp.
+ * Copyricht (C) 2003-2005 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <mach/hardware.h>
+#include <asm/mach-types.h>
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+	local_irq_disable();
+
+	/*
+	 * Reset flash banking register so that we are pointing at
+	 * RedBoot bank.
+	 */
+	if (machine_is_ixdp2401()) {
+		ixp2000_reg_write(IXDP2X01_CPLD_FLASH_REG,
+					((0 >> IXDP2X01_FLASH_WINDOW_BITS)
+						| IXDP2X01_CPLD_FLASH_INTERN));
+		ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0xffffffff);
+	}
+
+	/*
+	 * On IXDP2801 we need to write this magic sequence to the CPLD
+	 * to cause a complete reset of the CPU and all external devices
+	 * and move the flash bank register back to 0.
+	 */
+	if (machine_is_ixdp2801() || machine_is_ixdp28x5()) {
+		unsigned long reset_reg = *IXDP2X01_CPLD_RESET_REG;
+
+		reset_reg = 0x55AA0000 | (reset_reg & 0x0000FFFF);
+		ixp2000_reg_write(IXDP2X01_CPLD_RESET_REG, reset_reg);
+		ixp2000_reg_wrb(IXDP2X01_CPLD_RESET_REG, 0x80000000);
+	}
+
+	ixp2000_reg_wrb(IXP2000_RESET0, RSTALL);
+}
diff --git a/arch/arm/mach-ixp2000/include/mach/timex.h b/arch/arm/mach-ixp2000/include/mach/timex.h
new file mode 100644
index 00000000000..835e659f93d
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/timex.h
@@ -0,0 +1,13 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/timex.h
+ *
+ * IXP2000 architecture timex specifications
+ */
+
+
+/*
+ * Default clock is 50MHz APB, but platform code can override this
+ */
+#define CLOCK_TICK_RATE	50000000
+
+
diff --git a/arch/arm/mach-ixp2000/include/mach/uncompress.h b/arch/arm/mach-ixp2000/include/mach/uncompress.h
new file mode 100644
index 00000000000..ce363087df7
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/uncompress.h
@@ -0,0 +1,47 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/uncompress.h
+ *
+ *
+ * Original Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ * Maintainer: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * Copyright 2002 Intel Corp.
+ *
+ *  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.
+ *
+ */
+
+#include <linux/serial_reg.h>
+
+#define UART_BASE	0xc0030000
+
+#define PHYS(x)          ((volatile unsigned long *)(UART_BASE + x))
+
+#define UARTDR          PHYS(0x00)      /* Transmit reg dlab=0 */
+#define UARTDLL         PHYS(0x00)      /* Divisor Latch reg dlab=1*/
+#define UARTDLM         PHYS(0x04)      /* Divisor Latch reg dlab=1*/
+#define UARTIER         PHYS(0x04)      /* Interrupt enable reg */
+#define UARTFCR         PHYS(0x08)      /* FIFO control reg dlab =0*/
+#define UARTLCR         PHYS(0x0c)      /* Control reg */
+#define UARTSR          PHYS(0x14)      /* Status reg */
+
+
+static inline void putc(int c)
+{
+	int j = 0x1000;
+
+	while (--j && !(*UARTSR & UART_LSR_THRE))
+		barrier();
+
+	*UARTDR = c;
+}
+
+static inline void flush(void)
+{
+}
+
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/arch/arm/mach-ixp2000/include/mach/vmalloc.h b/arch/arm/mach-ixp2000/include/mach/vmalloc.h
new file mode 100644
index 00000000000..d195e35aed3
--- /dev/null
+++ b/arch/arm/mach-ixp2000/include/mach/vmalloc.h
@@ -0,0 +1,20 @@
+/*
+ * arch/arm/mach-ixp2000/include/mach/vmalloc.h
+ *
+ * Author: Naeem Afzal <naeem.m.afzal@intel.com>
+ *
+ * Copyright 2002 Intel Corp.
+ *
+ *  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.
+ *
+ * Just any arbitrary offset to the start of the vmalloc VM area: the
+ * current 8MB value just means that there will be a 8MB "hole" after the
+ * physical memory until the kernel virtual memory starts.  That means that
+ * any out-of-bounds memory accesses will hopefully be caught.
+ * The vmalloc() routines leaves a hole of 4kB between each vmalloced
+ * area for the same reason. ;)
+ */
+#define VMALLOC_END	    0xfb000000