9 files changed, 850 insertions, 0 deletions
diff --git a/arch/mn10300/boot/.gitignore b/arch/mn10300/boot/.gitignore
new file mode 100644
index 0000000..b6718de
--- /dev/null
+++ b/arch/mn10300/boot/.gitignore
@@ -0,0 +1 @@
+zImage
diff --git a/arch/mn10300/boot/Makefile b/arch/mn10300/boot/Makefile
new file mode 100644
index 0000000..36c9caf
--- /dev/null
+++ b/arch/mn10300/boot/Makefile
@@ -0,0 +1,28 @@
+# MN10300 kernel compressor and wrapper
+#
+# Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+# Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+# Written by David Howells (dhowells@redhat.com)
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public Licence
+# as published by the Free Software Foundation; either version
+# 2 of the Licence, or (at your option) any later version.
+#
+
+targets		:= vmlinux.bin zImage
+
+subdir- 	:= compressed
+
+# ---------------------------------------------------------------------------
+
+
+$(obj)/zImage: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+	@echo 'Kernel: $@ is ready'
+
+$(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/compressed/vmlinux: FORCE
+	$(Q)$(MAKE) $(build)=$(obj)/compressed IMAGE_OFFSET=$(IMAGE_OFFSET) $@
diff --git a/arch/mn10300/boot/compressed/Makefile b/arch/mn10300/boot/compressed/Makefile
new file mode 100644
index 0000000..08a95e1
--- /dev/null
+++ b/arch/mn10300/boot/compressed/Makefile
@@ -0,0 +1,22 @@
+#
+# Create a compressed vmlinux image from the original vmlinux
+#
+
+targets		:= vmlinux vmlinux.bin vmlinux.bin.gz head.o misc.o piggy.o
+
+LDFLAGS_vmlinux := -Ttext $(CONFIG_KERNEL_ZIMAGE_BASE_ADDRESS) -e startup_32
+
+$(obj)/vmlinux: $(obj)/head.o $(obj)/misc.o $(obj)/piggy.o FORCE
+	$(call if_changed,ld)
+	@:
+
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE
+	$(call if_changed,gzip)
+
+LDFLAGS_piggy.o := -r --format binary --oformat elf32-am33lin -T
+
+$(obj)/piggy.o: $(obj)/vmlinux.lds $(obj)/vmlinux.bin.gz FORCE
+	$(call if_changed,ld)
diff --git a/arch/mn10300/boot/compressed/head.S b/arch/mn10300/boot/compressed/head.S
new file mode 100644
index 0000000..502e1eb
--- /dev/null
+++ b/arch/mn10300/boot/compressed/head.S
@@ -0,0 +1,86 @@
+/* Boot entry point for a compressed MN10300 kernel
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+	.section	.text
+
+#define DEBUG
+
+#include <linux/linkage.h>
+#include <asm/cpu-regs.h>
+
+	.globl startup_32
+startup_32:
+	# first save off parameters from bootloader
+	mov	param_save_area,a0
+	mov	d0,(a0)
+	mov	d1,(4,a0)
+	mov	d2,(8,a0)
+
+	mov	sp,a3
+	mov	decomp_stack+0x2000-4,a0
+	mov	a0,sp
+
+	# invalidate and enable both of the caches
+	mov	CHCTR,a0
+	clr	d0
+	movhu	d0,(a0)					# turn off first
+	mov	CHCTR_ICINV|CHCTR_DCINV,d0
+	movhu	d0,(a0)
+	setlb
+	mov	(a0),d0
+	btst	CHCTR_ICBUSY|CHCTR_DCBUSY,d0		# wait till not busy
+	lne
+	mov	CHCTR_ICEN|CHCTR_DCEN|CHCTR_DCWTMD,d0	# writethru dcache
+	movhu	d0,(a0)					# enable
+
+	# clear the BSS area
+	mov	__bss_start,a0
+	mov	_end,a1
+	clr	d0
+bssclear:
+	cmp	a1,a0
+	bge	bssclear_end
+	movbu	d0,(a0)
+	inc	a0
+	bra	bssclear
+bssclear_end:
+
+	# decompress the kernel
+	call	decompress_kernel[],0
+
+	# disable caches again
+	mov	CHCTR,a0
+	clr	d0
+	movhu	d0,(a0)
+	setlb
+	mov	(a0),d0
+	btst	CHCTR_ICBUSY|CHCTR_DCBUSY,d0		# wait till not busy
+	lne
+
+	mov	param_save_area,a0
+	mov	(a0),d0
+	mov	(4,a0),d1
+	mov	(8,a0),d2
+
+	mov	a3,sp
+	mov	CONFIG_KERNEL_TEXT_ADDRESS,a0
+	jmp	(a0)
+
+	.data
+	.align		4
+param_save_area:
+	.rept 3
+	.word		0
+	.endr
+
+	.section	.bss
+	.align		4
+decomp_stack:
+	.space		0x2000
diff --git a/arch/mn10300/boot/compressed/misc.c b/arch/mn10300/boot/compressed/misc.c
new file mode 100644
index 0000000..ded207e
--- /dev/null
+++ b/arch/mn10300/boot/compressed/misc.c
@@ -0,0 +1,429 @@
+/* MN10300 Miscellaneous helper routines for kernel decompressor
+ *
+ * Copyright (C) 2007 Matsushita Electric Industrial Co., Ltd.
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Modified by David Howells (dhowells@redhat.com)
+ * - Derived from arch/x86/boot/compressed/misc_32.c
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#include <linux/compiler.h>
+#include <asm/serial-regs.h>
+#include "misc.h"
+
+#ifndef CONFIG_GDBSTUB_ON_TTYSx
+/* display 'Uncompressing Linux... ' messages on ttyS0 or ttyS1 */
+#if 1	/* ttyS0 */
+#define CYG_DEV_BASE	0xA6FB0000
+#else   /* ttyS1 */
+#define CYG_DEV_BASE	0xA6FC0000
+#endif
+
+#define CYG_DEV_THR	(*((volatile __u8*)(CYG_DEV_BASE + 0x00)))
+#define CYG_DEV_MCR	(*((volatile __u8*)(CYG_DEV_BASE + 0x10)))
+#define SIO_MCR_DTR	0x01
+#define SIO_MCR_RTS	0x02
+#define CYG_DEV_LSR	(*((volatile __u8*)(CYG_DEV_BASE + 0x14)))
+#define SIO_LSR_THRE	0x20		/* transmitter holding register empty */
+#define SIO_LSR_TEMT	0x40		/* transmitter register empty */
+#define CYG_DEV_MSR	(*((volatile __u8*)(CYG_DEV_BASE + 0x18)))
+#define SIO_MSR_CTS	0x10		/* clear to send */
+#define SIO_MSR_DSR	0x20		/* data set ready */
+
+#define LSR_WAIT_FOR(STATE) \
+	do { while (!(CYG_DEV_LSR & SIO_LSR_##STATE)) {} } while (0)
+#define FLOWCTL_QUERY(LINE) \
+	({ CYG_DEV_MSR & SIO_MSR_##LINE; })
+#define FLOWCTL_WAIT_FOR(LINE) \
+	do { while (!(CYG_DEV_MSR & SIO_MSR_##LINE)) {} } while (0)
+#define FLOWCTL_CLEAR(LINE) \
+	do { CYG_DEV_MCR &= ~SIO_MCR_##LINE; } while (0)
+#define FLOWCTL_SET(LINE) \
+	do { CYG_DEV_MCR |= SIO_MCR_##LINE; } while (0)
+#endif
+
+/*
+ * gzip declarations
+ */
+
+#define OF(args)  args
+#define STATIC static
+
+#undef memset
+#undef memcpy
+
+static inline void *memset(const void *s, int c, size_t n)
+{
+	int i;
+	char *ss = (char *) s;
+
+	for (i = 0; i < n; i++)
+		ss[i] = c;
+	return (void *)s;
+}
+
+#define memzero(s, n) memset((s), 0, (n))
+
+static inline void *memcpy(void *__dest, const void *__src, size_t __n)
+{
+	int i;
+	const char *s = __src;
+	char *d = __dest;
+
+	for (i = 0; i < __n; i++)
+		d[i] = s[i];
+	return __dest;
+}
+
+typedef unsigned char  uch;
+typedef unsigned short ush;
+typedef unsigned long  ulg;
+
+#define WSIZE 0x8000	/* Window size must be at least 32k, and a power of
+			 * two */
+
+static uch *inbuf;	/* input buffer */
+static uch window[WSIZE]; /* sliding window buffer */
+
+static unsigned insize;	/* valid bytes in inbuf */
+static unsigned inptr;	/* index of next byte to be processed in inbuf */
+static unsigned outcnt;	/* bytes in output buffer */
+
+/* gzip flag byte */
+#define ASCII_FLAG   0x01 /* bit 0 set: file probably ASCII text */
+#define CONTINUATION 0x02 /* bit 1 set: continuation of multi-part gzip file */
+#define EXTRA_FIELD  0x04 /* bit 2 set: extra field present */
+#define ORIG_NAME    0x08 /* bit 3 set: original file name present */
+#define COMMENT      0x10 /* bit 4 set: file comment present */
+#define ENCRYPTED    0x20 /* bit 5 set: file is encrypted */
+#define RESERVED     0xC0 /* bit 6,7:   reserved */
+
+/* Diagnostic functions */
+#ifdef DEBUG
+#  define Assert(cond, msg) { if (!(cond)) error(msg); }
+#  define Trace(x)	fprintf x
+#  define Tracev(x)	{ if (verbose) fprintf x ; }
+#  define Tracevv(x)	{ if (verbose > 1) fprintf x ; }
+#  define Tracec(c, x)	{ if (verbose && (c)) fprintf x ; }
+#  define Tracecv(c, x)	{ if (verbose > 1 && (c)) fprintf x ; }
+#else
+#  define Assert(cond, msg)
+#  define Trace(x)
+#  define Tracev(x)
+#  define Tracevv(x)
+#  define Tracec(c, x)
+#  define Tracecv(c, x)
+#endif
+
+static int  fill_inbuf(void);
+static void flush_window(void);
+static void error(const char *) __attribute__((noreturn));
+static void kputs(const char *);
+
+static inline unsigned char get_byte(void)
+{
+	unsigned char ch = inptr < insize ? inbuf[inptr++] : fill_inbuf();
+
+#if 0
+	char hex[3];
+	hex[0] = ((ch & 0x0f) > 9) ?
+		((ch & 0x0f) + 'A' - 0xa) : ((ch & 0x0f) + '0');
+	hex[1] = ((ch >> 4) > 9) ?
+		((ch >> 4) + 'A' - 0xa) : ((ch >> 4) + '0');
+	hex[2] = 0;
+	kputs(hex);
+#endif
+	return ch;
+}
+
+/*
+ * This is set up by the setup-routine at boot-time
+ */
+#define EXT_MEM_K (*(unsigned short *)0x90002)
+#ifndef STANDARD_MEMORY_BIOS_CALL
+#define ALT_MEM_K (*(unsigned long *) 0x901e0)
+#endif
+#define SCREEN_INFO (*(struct screen_info *)0x90000)
+
+static long bytes_out;
+static uch *output_data;
+static unsigned long output_ptr;
+
+
+static void *malloc(int size);
+
+static inline void free(void *where)
+{	/* Don't care */
+}
+
+static unsigned long free_mem_ptr = (unsigned long) &end;
+static unsigned long free_mem_end_ptr = (unsigned long) &end + 0x90000;
+
+static inline void gzip_mark(void **ptr)
+{
+	kputs(".");
+	*ptr = (void *) free_mem_ptr;
+}
+
+static inline void gzip_release(void **ptr)
+{
+	free_mem_ptr = (unsigned long) *ptr;
+}
+
+#define INPLACE_MOVE_ROUTINE	0x1000
+#define LOW_BUFFER_START	0x2000
+#define LOW_BUFFER_END		0x90000
+#define LOW_BUFFER_SIZE		(LOW_BUFFER_END - LOW_BUFFER_START)
+#define HEAP_SIZE		0x3000
+static int high_loaded;
+static uch *high_buffer_start /* = (uch *)(((ulg)&end) + HEAP_SIZE)*/;
+
+static char *vidmem = (char *)0xb8000;
+static int lines, cols;
+
+#include "../../../../lib/inflate.c"
+
+static void *malloc(int size)
+{
+	void *p;
+
+	if (size < 0)
+		error("Malloc error\n");
+	if (!free_mem_ptr)
+		error("Memory error\n");
+
+	free_mem_ptr = (free_mem_ptr + 3) & ~3;	/* Align */
+
+	p = (void *) free_mem_ptr;
+	free_mem_ptr += size;
+
+	if (free_mem_ptr >= free_mem_end_ptr)
+		error("\nOut of memory\n");
+
+	return p;
+}
+
+static inline void scroll(void)
+{
+	int i;
+
+	memcpy(vidmem, vidmem + cols * 2, (lines - 1) * cols * 2);
+	for (i = (lines - 1) * cols * 2; i < lines * cols * 2; i += 2)
+		vidmem[i] = ' ';
+}
+
+static inline void kputchar(unsigned char ch)
+{
+#ifdef CONFIG_MN10300_UNIT_ASB2305
+	while (SC0STR & SC01STR_TBF)
+		continue;
+
+	if (ch == 0x0a) {
+		SC0TXB = 0x0d;
+		while (SC0STR & SC01STR_TBF)
+			continue;
+	}
+
+	SC0TXB = ch;
+
+#else
+	while (SC1STR & SC01STR_TBF)
+		continue;
+
+	if (ch == 0x0a) {
+		SC1TXB = 0x0d;
+		while (SC1STR & SC01STR_TBF)
+			continue;
+	}
+
+	SC1TXB = ch;
+
+#endif
+}
+
+static void kputs(const char *s)
+{
+#ifdef CONFIG_DEBUG_DECOMPRESS_KERNEL
+#ifndef CONFIG_GDBSTUB_ON_TTYSx
+	char ch;
+
+	FLOWCTL_SET(DTR);
+
+	while (*s) {
+		LSR_WAIT_FOR(THRE);
+
+		ch = *s++;
+		if (ch == 0x0a) {
+			CYG_DEV_THR = 0x0d;
+			LSR_WAIT_FOR(THRE);
+		}
+		CYG_DEV_THR = ch;
+	}
+
+	FLOWCTL_CLEAR(DTR);
+#else
+
+	for (; *s; s++)
+		kputchar(*s);
+
+#endif
+#endif /* CONFIG_DEBUG_DECOMPRESS_KERNEL */
+}
+
+/* ===========================================================================
+ * Fill the input buffer. This is called only when the buffer is empty
+ * and at least one byte is really needed.
+ */
+static int fill_inbuf()
+{
+	if (insize != 0)
+		error("ran out of input data\n");
+
+	inbuf = input_data;
+	insize = input_len;
+	inptr = 1;
+	return inbuf[0];
+}
+
+/* ===========================================================================
+ * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+ * (Used for the decompressed data only.)
+ */
+static void flush_window_low(void)
+{
+    ulg c = crc;         /* temporary variable */
+    unsigned n;
+    uch *in, *out, ch;
+
+    in = window;
+    out = &output_data[output_ptr];
+    for (n = 0; n < outcnt; n++) {
+	    ch = *out++ = *in++;
+	    c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+    }
+    crc = c;
+    bytes_out += (ulg)outcnt;
+    output_ptr += (ulg)outcnt;
+    outcnt = 0;
+}
+
+static void flush_window_high(void)
+{
+    ulg c = crc;         /* temporary variable */
+    unsigned n;
+    uch *in,  ch;
+    in = window;
+    for (n = 0; n < outcnt; n++) {
+	ch = *output_data++ = *in++;
+	if ((ulg) output_data == LOW_BUFFER_END)
+		output_data = high_buffer_start;
+	c = crc_32_tab[((int)c ^ ch) & 0xff] ^ (c >> 8);
+    }
+    crc = c;
+    bytes_out += (ulg)outcnt;
+    outcnt = 0;
+}
+
+static void flush_window(void)
+{
+	if (high_loaded)
+		flush_window_high();
+	else
+		flush_window_low();
+}
+
+static void error(const char *x)
+{
+	kputs("\n\n");
+	kputs(x);
+	kputs("\n\n -- System halted");
+
+	while (1)
+		/* Halt */;
+}
+
+#define STACK_SIZE (4096)
+
+long user_stack[STACK_SIZE];
+
+struct {
+	long *a;
+	short b;
+} stack_start = { &user_stack[STACK_SIZE], 0 };
+
+void setup_normal_output_buffer(void)
+{
+#ifdef STANDARD_MEMORY_BIOS_CALL
+	if (EXT_MEM_K < 1024)
+		error("Less than 2MB of memory.\n");
+#else
+	if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < 1024)
+		error("Less than 2MB of memory.\n");
+#endif
+	output_data = (char *) 0x100000; /* Points to 1M */
+}
+
+struct moveparams {
+	uch *low_buffer_start;
+	int lcount;
+	uch *high_buffer_start;
+	int hcount;
+};
+
+void setup_output_buffer_if_we_run_high(struct moveparams *mv)
+{
+	high_buffer_start = (uch *)(((ulg) &end) + HEAP_SIZE);
+#ifdef STANDARD_MEMORY_BIOS_CALL
+	if (EXT_MEM_K < (3 * 1024))
+		error("Less than 4MB of memory.\n");
+#else
+	if ((ALT_MEM_K > EXT_MEM_K ? ALT_MEM_K : EXT_MEM_K) < (3 * 1024))
+		error("Less than 4MB of memory.\n");
+#endif
+	mv->low_buffer_start = output_data = (char *) LOW_BUFFER_START;
+	high_loaded = 1;
+	free_mem_end_ptr = (long) high_buffer_start;
+	if (0x100000 + LOW_BUFFER_SIZE > (ulg) high_buffer_start) {
+		high_buffer_start = (uch *)(0x100000 + LOW_BUFFER_SIZE);
+		mv->hcount = 0; /* say: we need not to move high_buffer */
+	} else {
+		mv->hcount = -1;
+	}
+	mv->high_buffer_start = high_buffer_start;
+}
+
+void close_output_buffer_if_we_run_high(struct moveparams *mv)
+{
+	mv->lcount = bytes_out;
+	if (bytes_out > LOW_BUFFER_SIZE) {
+		mv->lcount = LOW_BUFFER_SIZE;
+		if (mv->hcount)
+			mv->hcount = bytes_out - LOW_BUFFER_SIZE;
+	} else {
+		mv->hcount = 0;
+	}
+}
+
+#undef DEBUGFLAG
+#ifdef DEBUGFLAG
+int debugflag;
+#endif
+
+int decompress_kernel(struct moveparams *mv)
+{
+#ifdef DEBUGFLAG
+	while (!debugflag)
+		barrier();
+#endif
+
+	output_data = (char *) CONFIG_KERNEL_TEXT_ADDRESS;
+
+	makecrc();
+	kputs("Uncompressing Linux... ");
+	gunzip();
+	kputs("Ok, booting the kernel.\n");
+	return 0;
+}
diff --git a/arch/mn10300/boot/compressed/misc.h b/arch/mn10300/boot/compressed/misc.h
new file mode 100644
index 0000000..da921cd
--- /dev/null
+++ b/arch/mn10300/boot/compressed/misc.h
@@ -0,0 +1,18 @@
+/* Internal definitions for the MN10300 kernel decompressor
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+extern int end;
+
+/*
+ * vmlinux.lds
+ */
+extern char input_data[];
+extern int input_len;
diff --git a/arch/mn10300/boot/compressed/vmlinux.lds b/arch/mn10300/boot/compressed/vmlinux.lds
new file mode 100644
index 0000000..a0849036
--- /dev/null
+++ b/arch/mn10300/boot/compressed/vmlinux.lds
@@ -0,0 +1,9 @@
+SECTIONS
+{
+  .data : {
+	input_len = .;
+	LONG(input_data_end - input_data) input_data = .;
+	*(.data)
+	input_data_end = .;
+	}
+}
diff --git a/arch/mn10300/boot/install.sh b/arch/mn10300/boot/install.sh
new file mode 100644
index 0000000..072951c
--- /dev/null
+++ b/arch/mn10300/boot/install.sh
@@ -0,0 +1,67 @@
+#!/bin/sh
+#
+# arch/mn10300/boot/install -c.sh
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# Licence.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+# Copyright (C) 1995 by Linus Torvalds
+#
+# Adapted from code in arch/i386/boot/Makefile by H. Peter Anvin
+#
+# "make install -c" script for i386 architecture
+#
+# Arguments:
+#   $1 - kernel version
+#   $2 - kernel image file
+#   $3 - kernel map file
+#   $4 - default install -c path (blank if root directory)
+#   $5 - boot rom file
+#
+
+# User may have a custom install -c script
+
+rm -fr $4/../usr/include/linux $4/../usr/include/asm
+install -c -m 0755 $2 $4/vmlinuz
+install -c -m 0755 $5 $4/boot.rom
+install -c -m 0755 -d $4/../usr/include/linux
+cd $TOPDIR/include/linux
+for i in `find . -maxdepth 1 -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux
+done
+install -c -m 0755 -d $4/../usr/include/linux/byteorder
+cd $TOPDIR/include/linux/byteorder
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/byteorder
+done
+install -c -m 0755 -d $4/../usr/include/linux/lockd
+cd $TOPDIR/include/linux/lockd
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/lockd
+done
+install -c -m 0755 -d $4/../usr/include/linux/netfilter_ipv4
+cd $TOPDIR/include/linux/netfilter_ipv4
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/netfilter_ipv4
+done
+install -c -m 0755 -d $4/../usr/include/linux/nfsd
+cd $TOPDIR/include/linux/nfsd
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/nfsd/$i
+done
+install -c -m 0755 -d $4/../usr/include/linux/raid
+cd $TOPDIR/include/linux/raid
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/raid
+done
+install -c -m 0755 -d $4/../usr/include/linux/sunrpc
+cd $TOPDIR/include/linux/sunrpc
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/linux/sunrpc
+done
+install -c -m 0755 -d $4/../usr/include/asm
+cd $TOPDIR/include/asm
+for i in `find . -name '*.h' -print`; do
+  install -c -m 0644 $i $4/../usr/include/asm
+done
diff --git a/arch/mn10300/boot/tools/build.c b/arch/mn10300/boot/tools/build.c
new file mode 100644
index 0000000..4f552ea
--- /dev/null
+++ b/arch/mn10300/boot/tools/build.c
@@ -0,0 +1,190 @@
+/*
+ *  Copyright (C) 1991, 1992  Linus Torvalds
+ *  Copyright (C) 1997 Martin Mares
+ */
+
+/*
+ * This file builds a disk-image from three different files:
+ *
+ * - bootsect: exactly 512 bytes of 8086 machine code, loads the rest
+ * - setup: 8086 machine code, sets up system parm
+ * - system: 80386 code for actual system
+ *
+ * It does some checking that all files are of the correct type, and
+ * just writes the result to stdout, removing headers and padding to
+ * the right amount. It also writes some system data to stderr.
+ */
+
+/*
+ * Changes by tytso to allow root device specification
+ * High loaded stuff by Hans Lermen & Werner Almesberger, Feb. 1996
+ * Cross compiling fixes by Gertjan van Wingerde, July 1996
+ * Rewritten by Martin Mares, April 1997
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/sysmacros.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <asm/boot.h>
+
+#define DEFAULT_MAJOR_ROOT 0
+#define DEFAULT_MINOR_ROOT 0
+
+/* Minimal number of setup sectors (see also bootsect.S) */
+#define SETUP_SECTS 4
+
+uint8_t buf[1024];
+int fd;
+int is_big_kernel;
+
+__attribute__((noreturn))
+void die(const char *str, ...)
+{
+	va_list args;
+	va_start(args, str);
+	vfprintf(stderr, str, args);
+	fputc('\n', stderr);
+	exit(1);
+}
+
+void file_open(const char *name)
+{
+	fd = open(name, O_RDONLY, 0);
+	if (fd < 0)
+		die("Unable to open `%s': %m", name);
+}
+
+__attribute__((noreturn))
+void usage(void)
+{
+	die("Usage: build [-b] bootsect setup system [rootdev] [> image]");
+}
+
+int main(int argc, char **argv)
+{
+	unsigned int i, c, sz, setup_sectors;
+	uint32_t sys_size;
+	uint8_t major_root, minor_root;
+	struct stat sb;
+
+	if (argc > 2 && !strcmp(argv[1], "-b")) {
+		is_big_kernel = 1;
+		argc--, argv++;
+	}
+	if ((argc < 4) || (argc > 5))
+		usage();
+	if (argc > 4) {
+		if (!strcmp(argv[4], "CURRENT")) {
+			if (stat("/", &sb)) {
+				perror("/");
+				die("Couldn't stat /");
+			}
+			major_root = major(sb.st_dev);
+			minor_root = minor(sb.st_dev);
+		} else if (strcmp(argv[4], "FLOPPY")) {
+			if (stat(argv[4], &sb)) {
+				perror(argv[4]);
+				die("Couldn't stat root device.");
+			}
+			major_root = major(sb.st_rdev);
+			minor_root = minor(sb.st_rdev);
+		} else {
+			major_root = 0;
+			minor_root = 0;
+		}
+	} else {
+		major_root = DEFAULT_MAJOR_ROOT;
+		minor_root = DEFAULT_MINOR_ROOT;
+	}
+	fprintf(stderr, "Root device is (%d, %d)\n", major_root, minor_root);
+
+	file_open(argv[1]);
+	i = read(fd, buf, sizeof(buf));
+	fprintf(stderr, "Boot sector %d bytes.\n", i);
+	if (i != 512)
+		die("Boot block must be exactly 512 bytes");
+	if (buf[510] != 0x55 || buf[511] != 0xaa)
+		die("Boot block hasn't got boot flag (0xAA55)");
+	buf[508] = minor_root;
+	buf[509] = major_root;
+	if (write(1, buf, 512) != 512)
+		die("Write call failed");
+	close(fd);
+
+	/* Copy the setup code */
+	file_open(argv[2]);
+	for (i = 0; (c = read(fd, buf, sizeof(buf))) > 0; i += c)
+		if (write(1, buf, c) != c)
+			die("Write call failed");
+	if (c != 0)
+		die("read-error on `setup'");
+	close(fd);
+
+	/* Pad unused space with zeros */
+	setup_sectors = (i + 511) / 512;
+	/* for compatibility with ancient versions of LILO. */
+	if (setup_sectors < SETUP_SECTS)
+		setup_sectors = SETUP_SECTS;
+	fprintf(stderr, "Setup is %d bytes.\n", i);
+	memset(buf, 0, sizeof(buf));
+	while (i < setup_sectors * 512) {
+		c = setup_sectors * 512 - i;
+		if (c > sizeof(buf))
+			c = sizeof(buf);
+		if (write(1, buf, c) != c)
+			die("Write call failed");
+		i += c;
+	}
+
+	file_open(argv[3]);
+	if (fstat(fd, &sb))
+		die("Unable to stat `%s': %m", argv[3]);
+	sz = sb.st_size;
+	fprintf(stderr, "System is %d kB\n", sz / 1024);
+	sys_size = (sz + 15) / 16;
+	/* 0x28000*16 = 2.5 MB, conservative estimate for the current maximum */
+	if (sys_size > (is_big_kernel ? 0x28000 : DEF_SYSSIZE))
+		die("System is too big. Try using %smodules.",
+			is_big_kernel ? "" : "bzImage or ");
+	if (sys_size > 0xffff)
+		fprintf(stderr,
+			"warning: kernel is too big for standalone boot "
+			"from floppy\n");
+	while (sz > 0) {
+		int l, n;
+
+		l = (sz > sizeof(buf)) ? sizeof(buf) : sz;
+		n = read(fd, buf, l);
+		if (n != l) {
+			if (n < 0)
+				die("Error reading %s: %m", argv[3]);
+			else
+				die("%s: Unexpected EOF", argv[3]);
+		}
+		if (write(1, buf, l) != l)
+			die("Write failed");
+		sz -= l;
+	}
+	close(fd);
+
+	/* Write sizes to the bootsector */
+	if (lseek(1, 497, SEEK_SET) != 497)
+		die("Output: seek failed");
+	buf[0] = setup_sectors;
+	if (write(1, buf, 1) != 1)
+		die("Write of setup sector count failed");
+	if (lseek(1, 500, SEEK_SET) != 500)
+		die("Output: seek failed");
+	buf[0] = (sys_size & 0xff);
+	buf[1] = ((sys_size >> 8) & 0xff);
+	if (write(1, buf, 2) != 2)
+		die("Write of image length failed");
+
+	return 0;
+}