Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

12 files changed, 720 insertions, 0 deletions

diff --git a/include/asm-arm/arch-ebsa285/debug-macro.S b/include/asm-arm/arch-ebsa285/debug-macro.S
new file mode 100644
index 00000000000..237853db6e2
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/debug-macro.S
@@ -0,0 +1,66 @@
+/* linux/include/asm-arm/arch-ebsa285/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.
+ *
+*/
+
+#include <asm/hardware/dec21285.h>
+
+#ifndef CONFIG_DEBUG_DC21285_PORT
+	/* For NetWinder debugging */
+		.macro	addruart,rx
+		mrc	p15, 0, \rx, c1, c0
+		tst	\rx, #1			@ MMU enabled?
+		moveq	\rx, #0x7c000000	@ physical
+		movne	\rx, #0xff000000	@ virtual
+		orr	\rx, \rx, #0x000003f8
+		.endm
+
+		.macro	senduart,rd,rx
+		strb	\rd, [\rx]
+		.endm
+
+		.macro	busyuart,rd,rx
+1002:		ldrb	\rd, [\rx, #0x5]
+		and	\rd, \rd, #0x60
+		teq	\rd, #0x60
+		bne	1002b
+		.endm
+
+		.macro	waituart,rd,rx
+1001:		ldrb	\rd, [\rx, #0x6]
+		tst	\rd, #0x10
+		beq	1001b
+		.endm
+#else
+	/* For EBSA285 debugging */
+		.equ	dc21285_high, ARMCSR_BASE & 0xff000000
+		.equ	dc21285_low,  ARMCSR_BASE & 0x00ffffff
+
+		.macro	addruart,rx
+		mov	\rx, #dc21285_high
+		.if	dc21285_low
+		orr	\rx, \rx, #dc21285_low
+		.endif
+		.endm
+
+		.macro	senduart,rd,rx
+		str	\rd, [\rx, #0x160]	@ UARTDR
+		.endm
+
+		.macro	busyuart,rd,rx
+1001:		ldr	\rd, [\rx, #0x178]	@ UARTFLG
+		tst	\rd, #1 << 3
+		bne	1001b
+		.endm
+
+		.macro	waituart,rd,rx
+		.endm
+#endif
diff --git a/include/asm-arm/arch-ebsa285/dma.h b/include/asm-arm/arch-ebsa285/dma.h
new file mode 100644
index 00000000000..c43046eb8bc
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/dma.h
@@ -0,0 +1,30 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/dma.h
+ *
+ *  Architecture DMA routines
+ *
+ *  Copyright (C) 1998,1999 Russell King
+ *  Copyright (C) 1998,1999 Philip Blundell
+ */
+#ifndef __ASM_ARCH_DMA_H
+#define __ASM_ARCH_DMA_H
+
+/*
+ * This is the maximum DMA address that can be DMAd to.
+ */
+#define MAX_DMA_ADDRESS		0xffffffff
+
+/*
+ * The 21285 has two internal DMA channels; we call these 8 and 9.
+ * On CATS hardware we have an additional eight ISA dma channels
+ * numbered 0..7.
+ */
+#define _ISA_DMA(x)		(0+(x))
+#define _DC21285_DMA(x)		(8+(x))
+
+#define MAX_DMA_CHANNELS	10
+
+#define DMA_FLOPPY		_ISA_DMA(2)
+#define DMA_ISA_CASCADE		_ISA_DMA(4)
+
+#endif /* _ASM_ARCH_DMA_H */
diff --git a/include/asm-arm/arch-ebsa285/entry-macro.S b/include/asm-arm/arch-ebsa285/entry-macro.S
new file mode 100644
index 00000000000..db5729ff634
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/entry-macro.S
@@ -0,0 +1,105 @@
+/*
+ * include/asm-arm/arch-footbridge/entry-macro.S
+ *
+ * Low-level IRQ helper macros for footbridge-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 <asm/hardware/dec21285.h>
+
+		.macro	disable_fiq
+		.endm
+
+		.equ	dc21285_high, ARMCSR_BASE & 0xff000000
+		.equ	dc21285_low, ARMCSR_BASE & 0x00ffffff
+
+		.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
+		mov	r4, #dc21285_high
+		.if	dc21285_low
+		orr	r4, r4, #dc21285_low
+		.endif
+		ldr	\irqstat, [r4, #0x180]		@ get interrupts
+
+		mov	\irqnr, #IRQ_SDRAMPARITY
+		tst	\irqstat, #IRQ_MASK_SDRAMPARITY
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_UART_RX
+		movne	\irqnr, #IRQ_CONRX
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_DMA1
+		movne	\irqnr, #IRQ_DMA1
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_DMA2
+		movne	\irqnr, #IRQ_DMA2
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_IN0
+		movne	\irqnr, #IRQ_IN0
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_IN1
+		movne	\irqnr, #IRQ_IN1
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_IN2
+		movne	\irqnr, #IRQ_IN2
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_IN3
+		movne	\irqnr, #IRQ_IN3
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_PCI
+		movne	\irqnr, #IRQ_PCI
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_DOORBELLHOST
+		movne	\irqnr, #IRQ_DOORBELLHOST
+		bne     1001f
+
+		tst	\irqstat, #IRQ_MASK_I2OINPOST
+		movne	\irqnr, #IRQ_I2OINPOST
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_TIMER1
+		movne	\irqnr, #IRQ_TIMER1
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_TIMER2
+		movne	\irqnr, #IRQ_TIMER2
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_TIMER3
+		movne	\irqnr, #IRQ_TIMER3
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_UART_TX
+		movne	\irqnr, #IRQ_CONTX
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_PCI_ABORT
+		movne	\irqnr, #IRQ_PCI_ABORT
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_PCI_SERR
+		movne	\irqnr, #IRQ_PCI_SERR
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_DISCARD_TIMER
+		movne	\irqnr, #IRQ_DISCARD_TIMER
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_PCI_DPERR
+		movne	\irqnr, #IRQ_PCI_DPERR
+		bne	1001f
+
+		tst	\irqstat, #IRQ_MASK_PCI_PERR
+		movne	\irqnr, #IRQ_PCI_PERR
+1001:
+		.endm
+
diff --git a/include/asm-arm/arch-ebsa285/hardware.h b/include/asm-arm/arch-ebsa285/hardware.h
new file mode 100644
index 00000000000..2ef2200f108
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/hardware.h
@@ -0,0 +1,139 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/hardware.h
+ *
+ *  Copyright (C) 1998-1999 Russell King.
+ *
+ * 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.
+ *
+ *  This file contains the hardware definitions of the EBSA-285.
+ */
+#ifndef __ASM_ARCH_HARDWARE_H
+#define __ASM_ARCH_HARDWARE_H
+
+#include <linux/config.h>
+#include <asm/arch/memory.h>
+
+#ifdef CONFIG_ARCH_FOOTBRIDGE
+/*   Virtual      Physical	Size
+ * 0xff800000	0x40000000	1MB	X-Bus
+ * 0xff000000	0x7c000000	1MB	PCI I/O space
+ * 0xfe000000	0x42000000	1MB	CSR
+ * 0xfd000000	0x78000000	1MB	Outbound write flush (not supported)
+ * 0xfc000000	0x79000000	1MB	PCI IACK/special space
+ * 0xfb000000	0x7a000000	16MB	PCI Config type 1
+ * 0xfa000000	0x7b000000	16MB	PCI Config type 0
+ * 0xf9000000	0x50000000	1MB	Cache flush
+ * 0xf0000000	0x80000000	16MB	ISA memory
+ */
+#define XBUS_SIZE		0x00100000
+#define XBUS_BASE		0xff800000
+
+#define PCIO_SIZE		0x00100000
+#define PCIO_BASE		0xff000000
+
+#define ARMCSR_SIZE		0x00100000
+#define ARMCSR_BASE		0xfe000000
+
+#define WFLUSH_SIZE		0x00100000
+#define WFLUSH_BASE		0xfd000000
+
+#define PCIIACK_SIZE		0x00100000
+#define PCIIACK_BASE		0xfc000000
+
+#define PCICFG1_SIZE		0x01000000
+#define PCICFG1_BASE		0xfb000000
+
+#define PCICFG0_SIZE		0x01000000
+#define PCICFG0_BASE		0xfa000000
+
+#define FLUSH_SIZE		0x00100000
+#define FLUSH_BASE		0xf9000000
+
+#define PCIMEM_SIZE		0x01000000
+#define PCIMEM_BASE		0xf0000000
+
+#elif defined(CONFIG_ARCH_CO285)
+/*
+ * This is the COEBSA285 cut-down mapping
+ */
+#define PCIMEM_SIZE		0x80000000
+#define PCIMEM_BASE		0x80000000
+
+#define FLUSH_SIZE		0x00100000
+#define FLUSH_BASE		0x7e000000
+
+#define WFLUSH_SIZE		0x01000000
+#define WFLUSH_BASE		0x7d000000
+
+#define ARMCSR_SIZE		0x00100000
+#define ARMCSR_BASE		0x7cf00000
+
+#define XBUS_SIZE		0x00020000
+#define XBUS_BASE		0x7cee0000
+
+#define PCIO_SIZE		0x00010000
+#define PCIO_BASE		0x7ced0000
+
+#else
+
+#error "Undefined footbridge architecture"
+
+#endif
+
+#define XBUS_LEDS		((volatile unsigned char *)(XBUS_BASE + 0x12000))
+#define XBUS_LED_AMBER		(1 << 0)
+#define XBUS_LED_GREEN		(1 << 1)
+#define XBUS_LED_RED		(1 << 2)
+#define XBUS_LED_TOGGLE		(1 << 8)
+
+#define XBUS_SWITCH		((volatile unsigned char *)(XBUS_BASE + 0x12000))
+#define XBUS_SWITCH_SWITCH	((*XBUS_SWITCH) & 15)
+#define XBUS_SWITCH_J17_13	((*XBUS_SWITCH) & (1 << 4))
+#define XBUS_SWITCH_J17_11	((*XBUS_SWITCH) & (1 << 5))
+#define XBUS_SWITCH_J17_9	((*XBUS_SWITCH) & (1 << 6))
+
+#define FLUSH_BASE_PHYS		0x50000000
+#define UNCACHEABLE_ADDR	(ARMCSR_BASE + 0x108)
+
+
+/* PIC irq control */
+#define PIC_LO			0x20
+#define PIC_MASK_LO		0x21
+#define PIC_HI			0xA0
+#define PIC_MASK_HI		0xA1
+
+/* GPIO pins */
+#define GPIO_CCLK		0x800
+#define GPIO_DSCLK		0x400
+#define GPIO_E2CLK		0x200
+#define GPIO_IOLOAD		0x100
+#define GPIO_RED_LED		0x080
+#define GPIO_WDTIMER		0x040
+#define GPIO_DATA		0x020
+#define GPIO_IOCLK		0x010
+#define GPIO_DONE		0x008
+#define GPIO_FAN		0x004
+#define GPIO_GREEN_LED		0x002
+#define GPIO_RESET		0x001
+
+/* CPLD pins */
+#define CPLD_DS_ENABLE		8
+#define CPLD_7111_DISABLE	4
+#define CPLD_UNMUTE		2
+#define CPLD_FLASH_WR_ENABLE	1
+
+#ifndef __ASSEMBLY__
+extern void gpio_modify_op(int mask, int set);
+extern void gpio_modify_io(int mask, int in);
+extern int  gpio_read(void);
+extern void cpld_modify(int mask, int set);
+#endif
+
+#define pcibios_assign_all_busses()	1
+
+#define PCIBIOS_MIN_IO		0x1000
+#define PCIBIOS_MIN_MEM 	0x81000000
+
+#endif
diff --git a/include/asm-arm/arch-ebsa285/io.h b/include/asm-arm/arch-ebsa285/io.h
new file mode 100644
index 00000000000..70576b17f92
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/io.h
@@ -0,0 +1,45 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/io.h
+ *
+ *  Copyright (C) 1997-1999 Russell King
+ *
+ * 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.
+ *
+ *  Modifications:
+ *   06-12-1997	RMK	Created.
+ *   07-04-1999	RMK	Major cleanup
+ */
+#ifndef __ASM_ARM_ARCH_IO_H
+#define __ASM_ARM_ARCH_IO_H
+
+#define IO_SPACE_LIMIT 0xffff
+
+/*
+ * Translation of various region addresses to virtual addresses
+ */
+#define __io(a)			((void __iomem *)(PCIO_BASE + (a)))
+#if 1
+#define __mem_pci(a)		(a)
+#define __mem_isa(a)		((a) + PCIMEM_BASE)
+#else
+
+static inline void __iomem *___mem_pci(void __iomem *p)
+{
+	unsigned long a = (unsigned long)p;
+	BUG_ON(a <= 0xc0000000 || a >= 0xe0000000);
+	return p;
+}
+
+static inline void __iomem *___mem_isa(void __iomem *p)
+{
+	unsigned long a = (unsigned long)p;
+	BUG_ON(a >= 16*1048576);
+	return p + PCIMEM_BASE;
+}
+#define __mem_pci(a)		___mem_pci(a)
+#define __mem_isa(a)		___mem_isa(a)
+#endif
+
+#endif
diff --git a/include/asm-arm/arch-ebsa285/irqs.h b/include/asm-arm/arch-ebsa285/irqs.h
new file mode 100644
index 00000000000..3e766f1cecf
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/irqs.h
@@ -0,0 +1,98 @@
+/*
+ * linux/include/asm-arm/arch-ebsa285/irqs.h
+ *
+ * Copyright (C) 1998 Russell King
+ * Copyright (C) 1998 Phil Blundell
+ *
+ * Changelog:
+ *  20-Jan-1998	RMK	Started merge of EBSA286, CATS and NetWinder
+ *  01-Feb-1999	PJB	ISA IRQs start at 0 not 16
+ */
+#include <asm/mach-types.h>
+
+#define NR_IRQS			36
+#define NR_DC21285_IRQS		16
+
+#define _ISA_IRQ(x)		(0 + (x))
+#define _ISA_INR(x)		((x) - 0)
+#define _DC21285_IRQ(x)		(16 + (x))
+#define _DC21285_INR(x)		((x) - 16)
+
+/*
+ * This is a list of all interrupts that the 21285
+ * can generate and we handle.
+ */
+#define IRQ_CONRX		_DC21285_IRQ(0)
+#define IRQ_CONTX		_DC21285_IRQ(1)
+#define IRQ_TIMER1		_DC21285_IRQ(2)
+#define IRQ_TIMER2		_DC21285_IRQ(3)
+#define IRQ_TIMER3		_DC21285_IRQ(4)
+#define IRQ_IN0			_DC21285_IRQ(5)
+#define IRQ_IN1			_DC21285_IRQ(6)
+#define IRQ_IN2			_DC21285_IRQ(7)
+#define IRQ_IN3			_DC21285_IRQ(8)
+#define IRQ_DOORBELLHOST	_DC21285_IRQ(9)
+#define IRQ_DMA1		_DC21285_IRQ(10)
+#define IRQ_DMA2		_DC21285_IRQ(11)
+#define IRQ_PCI			_DC21285_IRQ(12)
+#define IRQ_SDRAMPARITY		_DC21285_IRQ(13)
+#define IRQ_I2OINPOST		_DC21285_IRQ(14)
+#define IRQ_PCI_ABORT		_DC21285_IRQ(15)
+#define IRQ_PCI_SERR		_DC21285_IRQ(16)
+#define IRQ_DISCARD_TIMER	_DC21285_IRQ(17)
+#define IRQ_PCI_DPERR		_DC21285_IRQ(18)
+#define IRQ_PCI_PERR		_DC21285_IRQ(19)
+
+#define IRQ_ISA_TIMER		_ISA_IRQ(0)
+#define IRQ_ISA_KEYBOARD	_ISA_IRQ(1)
+#define IRQ_ISA_CASCADE		_ISA_IRQ(2)
+#define IRQ_ISA_UART2		_ISA_IRQ(3)
+#define IRQ_ISA_UART		_ISA_IRQ(4)
+#define IRQ_ISA_FLOPPY		_ISA_IRQ(6)
+#define IRQ_ISA_PRINTER		_ISA_IRQ(7)
+#define IRQ_ISA_RTC_ALARM	_ISA_IRQ(8)
+#define IRQ_ISA_2		_ISA_IRQ(9)
+#define IRQ_ISA_PS2MOUSE	_ISA_IRQ(12)
+#define IRQ_ISA_HARDDISK1	_ISA_IRQ(14)
+#define IRQ_ISA_HARDDISK2	_ISA_IRQ(15)
+
+#define IRQ_MASK_UART_RX	(1 << 2)
+#define IRQ_MASK_UART_TX	(1 << 3)
+#define IRQ_MASK_TIMER1		(1 << 4)
+#define IRQ_MASK_TIMER2		(1 << 5)
+#define IRQ_MASK_TIMER3		(1 << 6)
+#define IRQ_MASK_IN0		(1 << 8)
+#define IRQ_MASK_IN1		(1 << 9)
+#define IRQ_MASK_IN2		(1 << 10)
+#define IRQ_MASK_IN3		(1 << 11)
+#define IRQ_MASK_DOORBELLHOST	(1 << 15)
+#define IRQ_MASK_DMA1		(1 << 16)
+#define IRQ_MASK_DMA2		(1 << 17)
+#define IRQ_MASK_PCI		(1 << 18)
+#define IRQ_MASK_SDRAMPARITY	(1 << 24)
+#define IRQ_MASK_I2OINPOST	(1 << 25)
+#define IRQ_MASK_PCI_ABORT	((1 << 29) | (1 << 30))
+#define IRQ_MASK_PCI_SERR	(1 << 23)
+#define IRQ_MASK_DISCARD_TIMER	(1 << 27)
+#define IRQ_MASK_PCI_DPERR	(1 << 28)
+#define IRQ_MASK_PCI_PERR	(1 << 31)
+
+/*
+ * Netwinder interrupt allocations
+ */
+#define IRQ_NETWINDER_ETHER10	IRQ_IN0
+#define IRQ_NETWINDER_ETHER100	IRQ_IN1
+#define IRQ_NETWINDER_VIDCOMP	IRQ_IN2
+#define IRQ_NETWINDER_PS2MOUSE	_ISA_IRQ(5)
+#define IRQ_NETWINDER_IR	_ISA_IRQ(6)
+#define IRQ_NETWINDER_BUTTON	_ISA_IRQ(10)
+#define IRQ_NETWINDER_VGA	_ISA_IRQ(11)
+#define IRQ_NETWINDER_SOUND	_ISA_IRQ(12)
+
+#undef RTC_IRQ
+#define RTC_IRQ		IRQ_ISA_RTC_ALARM
+#define I8042_KBD_IRQ	IRQ_ISA_KEYBOARD
+#define I8042_AUX_IRQ	(machine_is_netwinder() ? IRQ_NETWINDER_PS2MOUSE : IRQ_ISA_PS2MOUSE)
+#define IRQ_FLOPPYDISK	IRQ_ISA_FLOPPY
+
+#define irq_canonicalize(_i)	(((_i) == IRQ_ISA_CASCADE) ? IRQ_ISA_2 : _i)
diff --git a/include/asm-arm/arch-ebsa285/memory.h b/include/asm-arm/arch-ebsa285/memory.h
new file mode 100644
index 00000000000..d0466f9987d
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/memory.h
@@ -0,0 +1,75 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/memory.h
+ *
+ *  Copyright (C) 1996-1999 Russell King.
+ *
+ * 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.
+ *
+ *  Changelog:
+ *   20-Oct-1996 RMK	Created
+ *   31-Dec-1997 RMK	Fixed definitions to reduce warnings.
+ *   17-May-1998 DAG	Added __virt_to_bus and __bus_to_virt functions.
+ *   21-Nov-1998 RMK	Changed __virt_to_bus and __bus_to_virt to macros.
+ *   21-Mar-1999 RMK	Added PAGE_OFFSET for co285 architecture.
+ *			Renamed to memory.h
+ *			Moved PAGE_OFFSET and TASK_SIZE here
+ */
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <linux/config.h>
+
+#if defined(CONFIG_FOOTBRIDGE_ADDIN)
+/*
+ * If we may be using add-in footbridge mode, then we must
+ * use the out-of-line translation that makes use of the
+ * PCI BAR
+ */
+#ifndef __ASSEMBLY__
+extern unsigned long __virt_to_bus(unsigned long);
+extern unsigned long __bus_to_virt(unsigned long);
+#endif
+
+#elif defined(CONFIG_FOOTBRIDGE_HOST)
+
+#define __virt_to_bus(x)	((x) - 0xe0000000)
+#define __bus_to_virt(x)	((x) + 0xe0000000)
+
+#else
+
+#error "Undefined footbridge mode"
+
+#endif
+
+#if defined(CONFIG_ARCH_FOOTBRIDGE)
+
+/* Task size and page offset at 3GB */
+#define TASK_SIZE		(0xbf000000UL)
+#define PAGE_OFFSET		(0xc0000000UL)
+
+#elif defined(CONFIG_ARCH_CO285)
+
+/* Task size and page offset at 1.5GB */
+#define TASK_SIZE		(0x5f000000UL)
+#define PAGE_OFFSET		(0x60000000UL)
+
+#else
+
+#error "Undefined footbridge architecture"
+
+#endif
+
+/*
+ * Physical DRAM offset.
+ */
+#define PHYS_OFFSET		(0x00000000UL)
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's.
+ */
+#define TASK_UNMAPPED_BASE ((TASK_SIZE + 0x01000000) / 3)
+
+#endif
diff --git a/include/asm-arm/arch-ebsa285/param.h b/include/asm-arm/arch-ebsa285/param.h
new file mode 100644
index 00000000000..3827103b27a
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/param.h
@@ -0,0 +1,3 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/param.h
+ */
diff --git a/include/asm-arm/arch-ebsa285/system.h b/include/asm-arm/arch-ebsa285/system.h
new file mode 100644
index 00000000000..bf91c695c4b
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/system.h
@@ -0,0 +1,69 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/system.h
+ *
+ *  Copyright (C) 1996-1999 Russell King.
+ *
+ * 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 <asm/hardware/dec21285.h>
+#include <asm/io.h>
+#include <asm/hardware.h>
+#include <asm/leds.h>
+#include <asm/mach-types.h>
+
+static inline void arch_idle(void)
+{
+	cpu_do_idle();
+}
+
+static inline void arch_reset(char mode)
+{
+	if (mode == 's') {
+		/*
+		 * Jump into the ROM
+		 */
+		cpu_reset(0x41000000);
+	} else {
+		if (machine_is_netwinder()) {
+			/* open up the SuperIO chip
+			 */
+			outb(0x87, 0x370);
+			outb(0x87, 0x370);
+
+			/* aux function group 1 (logical device 7)
+			 */
+			outb(0x07, 0x370);
+			outb(0x07, 0x371);
+
+			/* set GP16 for WD-TIMER output
+			 */
+			outb(0xe6, 0x370);
+			outb(0x00, 0x371);
+
+			/* set a RED LED and toggle WD_TIMER for rebooting
+			 */
+			outb(0xc4, 0x338);
+		} else {
+			/* 
+			 * Force the watchdog to do a CPU reset.
+			 *
+			 * After making sure that the watchdog is disabled
+			 * (so we can change the timer registers) we first
+			 * enable the timer to autoreload itself.  Next, the
+			 * timer interval is set really short and any
+			 * current interrupt request is cleared (so we can
+			 * see an edge transition).  Finally, TIMER4 is
+			 * enabled as the watchdog.
+			 */
+			*CSR_SA110_CNTL &= ~(1 << 13);
+			*CSR_TIMER4_CNTL = TIMER_CNTL_ENABLE |
+					   TIMER_CNTL_AUTORELOAD |
+					   TIMER_CNTL_DIV16;
+			*CSR_TIMER4_LOAD = 0x2;
+			*CSR_TIMER4_CLR  = 0;
+			*CSR_SA110_CNTL |= (1 << 13);
+		}
+	}
+}
diff --git a/include/asm-arm/arch-ebsa285/timex.h b/include/asm-arm/arch-ebsa285/timex.h
new file mode 100644
index 00000000000..df60b3812d9
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/timex.h
@@ -0,0 +1,18 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/timex.h
+ *
+ *  Copyright (C) 1998 Russell King
+ *
+ * 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.
+ *
+ *  EBSA285 architecture timex specifications
+ */
+
+/*
+ * We assume a constant here; this satisfies the maths in linux/timex.h
+ * and linux/time.h.  CLOCK_TICK_RATE is actually system dependent, but
+ * this must be a constant.
+ */
+#define CLOCK_TICK_RATE		(50000000/16)
diff --git a/include/asm-arm/arch-ebsa285/uncompress.h b/include/asm-arm/arch-ebsa285/uncompress.h
new file mode 100644
index 00000000000..c2fd84e2d90
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/uncompress.h
@@ -0,0 +1,46 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/uncompress.h
+ *
+ *  Copyright (C) 1996-1999 Russell King
+ *
+ * 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 <asm/mach-types.h>
+
+/*
+ * Note! This could cause problems on the NetWinder
+ */
+#define DC21285_BASE ((volatile unsigned int *)0x42000160)
+#define SER0_BASE    ((volatile unsigned char *)0x7c0003f8)
+
+static __inline__ void putc(char c)
+{
+	if (machine_is_netwinder()) {
+		while ((SER0_BASE[5] & 0x60) != 0x60);
+		SER0_BASE[0] = c;
+	} else {
+		while (DC21285_BASE[6] & 8);
+		DC21285_BASE[0] = c;
+	}
+}
+
+/*
+ * This does not append a newline
+ */
+static void putstr(const char *s)
+{
+	while (*s) {
+		putc(*s);
+		if (*s == '\n')
+			putc('\r');
+		s++;
+	}
+}
+
+/*
+ * nothing to do
+ */
+#define arch_decomp_setup()
+#define arch_decomp_wdog()
diff --git a/include/asm-arm/arch-ebsa285/vmalloc.h b/include/asm-arm/arch-ebsa285/vmalloc.h
new file mode 100644
index 00000000000..def705a3c20
--- /dev/null
+++ b/include/asm-arm/arch-ebsa285/vmalloc.h
@@ -0,0 +1,26 @@
+/*
+ *  linux/include/asm-arm/arch-ebsa285/vmalloc.h
+ *
+ * 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 <linux/config.h>
+
+/*
+ * 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_OFFSET	  (8*1024*1024)
+#define VMALLOC_START	  (((unsigned long)high_memory + VMALLOC_OFFSET) & ~(VMALLOC_OFFSET-1))
+
+#ifdef CONFIG_ARCH_FOOTBRIDGE
+#define VMALLOC_END       (PAGE_OFFSET + 0x30000000)
+#else
+#define VMALLOC_END       (PAGE_OFFSET + 0x20000000)
+#endif