replace our arm LZMA loader with the one that goes upstream

SVN-Revision: 18439
2009-11-17 10:04:41 +00:00 · 2009-11-17 10:04:41 +00:00 · 294551ca73
commit 294551ca73
parent 73384dd1ff
15 changed files with 1746 additions and 1420 deletions
--- a/target/linux/generic-2.6/config-2.6.31
+++ b/target/linux/generic-2.6/config-2.6.31
@ -1026,6 +1026,9 @@ CONFIG_JOLIET=y
 # CONFIG_KALLSYMS is not set
 # CONFIG_KARMA_PARTITION is not set
 # CONFIG_KEXEC is not set
+# CONFIG_KERNEL_GZIP is not set
+CONFIG_KERNEL_LZMA=y
+# CONFIG_KERNEL_LZO is not set
 # CONFIG_KEYBOARD_LM8323 is not set
 # CONFIG_KEYS is not set
 # CONFIG_KMEMTRACE is not set
@ -1673,6 +1676,7 @@ CONFIG_RAMFS=y
 # CONFIG_RDC_17F3101X is not set
 # CONFIG_RD_GZIP is not set
 CONFIG_RD_LZMA=y
+# CONFIG_RD_LZO is not set
 # CONFIG_REALTEK_PHY is not set
 # CONFIG_REDWOOD is not set
 # CONFIG_REGULATOR_BQ24022 is not set
--- a/target/linux/generic-2.6/config-2.6.32
+++ b/target/linux/generic-2.6/config-2.6.32
@ -1036,6 +1036,9 @@ CONFIG_JOLIET=y
 # CONFIG_KALLSYMS is not set
 # CONFIG_KARMA_PARTITION is not set
 # CONFIG_KEXEC is not set
+# CONFIG_KERNEL_GZIP is not set
+CONFIG_KERNEL_LZMA=y
+# CONFIG_KERNEL_LZO is not set
 # CONFIG_KEYBOARD_LM8323 is not set
 # CONFIG_KEYS is not set
 # CONFIG_KMEMTRACE is not set
@ -1688,6 +1691,7 @@ CONFIG_RCU_FANOUT=32
 # CONFIG_RDC_17F3101X is not set
 # CONFIG_RD_GZIP is not set
 CONFIG_RD_LZMA=y
+# CONFIG_RD_LZO is not set
 # CONFIG_RDS is not set
 # CONFIG_REALTEK_PHY is not set
 # CONFIG_REDWOOD is not set
--- a/target/linux/generic-2.6/patches-2.6.31/049-byteshift_h_fix_usage_for_compressed_kernels.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/049-byteshift_h_fix_usage_for_compressed_kernels.patch
@ -0,0 +1,79 @@
+From 2fa4341074cd02fb39aa23410740764948755635 Mon Sep 17 00:00:00 2001
+From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
+Date: Wed, 23 Sep 2009 15:57:38 -0700
+Subject: [PATCH] include/linux/unaligned/{l,b}e_byteshift.h: fix usage for compressed kernels
+
+When unaligned accesses are required for uncompressing a kernel (such as
+for LZO decompression on ARM in a patch that follows), including
+<linux/kernel.h> causes issues as it brings in a lot of things that are
+not available in the decompression environment.
+
+linux/kernel.h brings at least:
+extern int console_printk[];
+extern const char hex_asc[];
+which causes errors at link-time as they are not available when
+compiling the pre-boot environement. There are also a few others:
+
+  arch/arm/boot/compressed/misc.o: In function `valid_user_regs':
+   arch/arm/include/asm/ptrace.h:158: undefined reference to `elf_hwcap'
+  arch/arm/boot/compressed/misc.o: In function `console_silent':
+   include/linux/kernel.h:292: undefined reference to `console_printk'
+  arch/arm/boot/compressed/misc.o: In function `console_verbose':
+   include/linux/kernel.h:297: undefined reference to `console_printk'
+  arch/arm/boot/compressed/misc.o: In function `pack_hex_byte':
+   include/linux/kernel.h:360: undefined reference to `hex_asc'
+  arch/arm/boot/compressed/misc.o: In function `hweight_long':
+   include/linux/bitops.h:45: undefined reference to `hweight32'
+  arch/arm/boot/compressed/misc.o: In function `__cmpxchg_local_generic':
+   include/asm-generic/cmpxchg-local.h:21: undefined reference to `wrong_size_cmpxchg'
+   include/asm-generic/cmpxchg-local.h:42: undefined reference to `wrong_size_cmpxchg'
+  arch/arm/boot/compressed/misc.o: In function `__xchg':
+   arch/arm/include/asm/system.h:309: undefined reference to `__bad_xchg'
+
+However, those files apparently use nothing from <linux/kernel.h>, all
+they need is the declaration of types such as u32 or u64, so
+<linux/types.h> should be enough
+
+Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
+Cc: Sam Ravnborg <sam@ravnborg.org>
+Cc: Russell King <rmk@arm.linux.org.uk>
+Cc: Ingo Molnar <mingo@elte.hu>
+Cc: Thomas Gleixner <tglx@linutronix.de>
+Cc: "H. Peter Anvin" <hpa@zytor.com>
+Cc: Phillip Lougher <phillip@lougher.demon.co.uk>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+---
+ include/linux/unaligned/be_byteshift.h |    2 +-
+ include/linux/unaligned/le_byteshift.h |    2 +-
+ 2 files changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/include/linux/unaligned/be_byteshift.h b/include/linux/unaligned/be_byteshift.h
+index 46dd12c..9356b24 100644
+--- a/include/linux/unaligned/be_byteshift.h
+++ b/include/linux/unaligned/be_byteshift.h
+@@ -1,7 +1,7 @@
+ #ifndef _LINUX_UNALIGNED_BE_BYTESHIFT_H
+ #define _LINUX_UNALIGNED_BE_BYTESHIFT_H
+ 
+-#include <linux/kernel.h>
+#include <linux/types.h>
+ 
+ static inline u16 __get_unaligned_be16(const u8 *p)
+ {
+diff --git a/include/linux/unaligned/le_byteshift.h b/include/linux/unaligned/le_byteshift.h
+index 59777e9..be376fb 100644
+--- a/include/linux/unaligned/le_byteshift.h
+++ b/include/linux/unaligned/le_byteshift.h
+@@ -1,7 +1,7 @@
+ #ifndef _LINUX_UNALIGNED_LE_BYTESHIFT_H
+ #define _LINUX_UNALIGNED_LE_BYTESHIFT_H
+ 
+-#include <linux/kernel.h>
+#include <linux/types.h>
+ 
+ static inline u16 __get_unaligned_le16(const u8 *p)
+ {
+-- 
+1.6.5.1
+
--- a/target/linux/generic-2.6/patches-2.6.31/050-lzo_compressed_kernels.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/050-lzo_compressed_kernels.patch
@ -0,0 +1,321 @@
+diff --git a/include/linux/decompress/unlzo.h b/include/linux/decompress/unlzo.h
+new file mode 100644
+index 0000000..9872297
+--- /dev/null
+++ b/include/linux/decompress/unlzo.h
+@@ -0,0 +1,10 @@
+#ifndef DECOMPRESS_UNLZO_H
+#define DECOMPRESS_UNLZO_H
+
+int unlzo(unsigned char *inbuf, int len,
+	int(*fill)(void*, unsigned int),
+	int(*flush)(void*, unsigned int),
+	unsigned char *output,
+	int *pos,
+	void(*error)(char *x));
+#endif
+diff --git a/init/Kconfig b/init/Kconfig
+index f515864..eb65318 100644
+--- a/init/Kconfig
+++ b/init/Kconfig
+@@ -115,10 +115,13 @@ config HAVE_KERNEL_BZIP2
+ config HAVE_KERNEL_LZMA
+ 	bool
+ 
+config HAVE_KERNEL_LZO
+	bool
+
+ choice
+ 	prompt "Kernel compression mode"
+ 	default KERNEL_GZIP
+-	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA
+	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_LZO
+ 	help
+ 	  The linux kernel is a kind of self-extracting executable.
+ 	  Several compression algorithms are available, which differ
+@@ -141,9 +144,8 @@ config KERNEL_GZIP
+ 	bool "Gzip"
+ 	depends on HAVE_KERNEL_GZIP
+ 	help
+-	  The old and tried gzip compression. Its compression ratio is
+-	  the poorest among the 3 choices; however its speed (both
+-	  compression and decompression) is the fastest.
+	  The old and tried gzip compression. It provides a good balance
+	  between compression ratio and decompression speed.
+ 
+ config KERNEL_BZIP2
+ 	bool "Bzip2"
+@@ -164,6 +166,14 @@ config KERNEL_LZMA
+ 	  two. Compression is slowest.	The kernel size is about 33%
+ 	  smaller with LZMA in comparison to gzip.
+ 
+config KERNEL_LZO
+	bool "LZO"
+	depends on HAVE_KERNEL_LZO
+	help
+	  Its compression ratio is the poorest among the 4. The kernel
+	  size is about about 10% bigger than gzip; however its speed
+	  (both compression and decompression) is the fastest.
+
+ endchoice
+ 
+ config SWAP
+diff --git a/lib/decompress_unlzo.c b/lib/decompress_unlzo.c
+new file mode 100644
+index 0000000..2bb736f
+--- /dev/null
+++ b/lib/decompress_unlzo.c
+@@ -0,0 +1,208 @@
+/*
+ * LZO decompressor for the Linux kernel. Code borrowed from the lzo
+ * implementation by Markus Franz Xaver Johannes Oberhumer.
+ *
+ * Linux kernel adaptation:
+ * Copyright (C) 2009
+ * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
+ *
+ * Original code:
+ * Copyright (C) 1996-2005 Markus Franz Xaver Johannes Oberhumer
+ * All Rights Reserved.
+ *
+ * lzop and the LZO library are free software; you can redistribute them
+ * and/or modify them under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.
+ * If not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Markus F.X.J. Oberhumer
+ * <markus@oberhumer.com>
+ * http://www.oberhumer.com/opensource/lzop/
+ */
+
+#ifdef STATIC
+#include "lzo/lzo1x_decompress.c"
+#else
+#include <linux/slab.h>
+#include <linux/decompress/unlzo.h>
+#endif
+
+#include <linux/types.h>
+#include <linux/lzo.h>
+#include <linux/decompress/mm.h>
+
+#include <linux/compiler.h>
+#include <asm/unaligned.h>
+
+static const unsigned char lzop_magic[] =
+	{ 0x89, 0x4c, 0x5a, 0x4f, 0x00, 0x0d, 0x0a, 0x1a, 0x0a };
+
+#define LZO_BLOCK_SIZE        (256*1024l)
+#define HEADER_HAS_FILTER      0x00000800L
+
+STATIC inline int INIT parse_header(u8 *input, u8 *skip)
+{
+	int l;
+	u8 *parse = input;
+	u8 level = 0;
+	u16 version;
+
+	/* read magic: 9 first bits */
+	for (l = 0; l < 9; l++) {
+		if (*parse++ != lzop_magic[l])
+			return 0;
+	}
+	/* get version (2bytes), skip library version (2),
+	 * 'need to be extracted' version (2) and
+	 * method (1) */
+	version = get_unaligned_be16(parse);
+	parse += 7;
+	if (version >= 0x0940)
+		level = *parse++;
+	if (get_unaligned_be32(parse) & HEADER_HAS_FILTER)
+		parse += 8; /* flags + filter info */
+	else
+		parse += 4; /* flags */
+
+	/* skip mode and mtime_low */
+	parse += 8;
+	if (version >= 0x0940)
+		parse += 4;	/* skip mtime_high */
+
+	l = *parse++;
+	/* don't care about the file name, and skip checksum */
+	parse += l + 4;
+
+	*skip = parse - input;
+	return 1;
+}
+
+STATIC inline int INIT unlzo(u8 *input, int in_len,
+				int (*fill) (void *, unsigned int),
+				int (*flush) (void *, unsigned int),
+				u8 *output, int *posp,
+				void (*error_fn) (char *x))
+{
+	u8 skip = 0, r = 0;
+	u32 src_len, dst_len;
+	size_t tmp;
+	u8 *in_buf, *in_buf_save, *out_buf;
+	int obytes_processed = 0;
+
+	set_error_fn(error_fn);
+
+	if (output)
+		out_buf = output;
+	else if (!flush) {
+		error("NULL output pointer and no flush function provided");
+		goto exit;
+	} else {
+		out_buf = malloc(LZO_BLOCK_SIZE);
+		if (!out_buf) {
+			error("Could not allocate output buffer");
+			goto exit;
+		}
+	}
+
+	if (input && fill) {
+		error("Both input pointer and fill function provided, don't know what to do");
+		goto exit_1;
+	} else if (input)
+		in_buf = input;
+	else if (!fill || !posp) {
+		error("NULL input pointer and missing position pointer or fill function");
+		goto exit_1;
+	} else {
+		in_buf = malloc(lzo1x_worst_compress(LZO_BLOCK_SIZE));
+		if (!in_buf) {
+			error("Could not allocate input buffer");
+			goto exit_1;
+		}
+	}
+	in_buf_save = in_buf;
+
+	if (posp)
+		*posp = 0;
+
+	if (fill)
+		fill(in_buf, lzo1x_worst_compress(LZO_BLOCK_SIZE));
+
+	if (!parse_header(input, &skip)) {
+		error("invalid header");
+		goto exit_2;
+	}
+	in_buf += skip;
+
+	if (posp)
+		*posp = skip;
+
+	for (;;) {
+		/* read uncompressed block size */
+		dst_len = get_unaligned_be32(in_buf);
+		in_buf += 4;
+
+		/* exit if last block */
+		if (dst_len == 0) {
+			if (posp)
+				*posp += 4;
+			break;
+		}
+
+		if (dst_len > LZO_BLOCK_SIZE) {
+			error("dest len longer than block size");
+			goto exit_2;
+		}
+
+		/* read compressed block size, and skip block checksum info */
+		src_len = get_unaligned_be32(in_buf);
+		in_buf += 8;
+
+		if (src_len <= 0 || src_len > dst_len) {
+			error("file corrupted");
+			goto exit_2;
+		}
+
+		/* decompress */
+		tmp = dst_len;
+		r = lzo1x_decompress_safe((u8 *) in_buf, src_len, out_buf, &tmp);
+
+		if (r != LZO_E_OK || dst_len != tmp) {
+			error("Compressed data violation");
+			goto exit_2;
+		}
+
+		obytes_processed += dst_len;
+		if (flush)
+			flush(out_buf, dst_len);
+		if (output)
+			out_buf += dst_len;
+		if (posp)
+			*posp += src_len + 12;
+		if (fill) {
+			in_buf = in_buf_save;
+			fill(in_buf, lzo1x_worst_compress(LZO_BLOCK_SIZE));
+		} else
+			in_buf += src_len;
+	}
+
+exit_2:
+	if (!input)
+		free(in_buf);
+exit_1:
+	if (!output)
+		free(out_buf);
+exit:
+	return obytes_processed;
+}
+
+#define decompress unlzo
+diff --git a/lib/lzo/lzo1x_decompress.c b/lib/lzo/lzo1x_decompress.c
+index 5dc6b29..f2fd098 100644
+--- a/lib/lzo/lzo1x_decompress.c
+++ b/lib/lzo/lzo1x_decompress.c
+@@ -11,11 +11,13 @@
+  *  Richard Purdie <rpurdie@openedhand.com>
+  */
+ 
+#ifndef STATIC
+ #include <linux/module.h>
+ #include <linux/kernel.h>
+-#include <linux/lzo.h>
+-#include <asm/byteorder.h>
+#endif
+
+ #include <asm/unaligned.h>
+#include <linux/lzo.h>
+ #include "lzodefs.h"
+ 
+ #define HAVE_IP(x, ip_end, ip) ((size_t)(ip_end - ip) < (x))
+@@ -244,9 +246,10 @@ lookbehind_overrun:
+ 	*out_len = op - out;
+ 	return LZO_E_LOOKBEHIND_OVERRUN;
+ }
+-
+#ifndef STATIC
+ EXPORT_SYMBOL_GPL(lzo1x_decompress_safe);
+ 
+ MODULE_LICENSE("GPL");
+ MODULE_DESCRIPTION("LZO1X Decompressor");
+ 
+#endif
+diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
+index ffdafb2..39c3483 100644
+--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
+@@ -230,3 +230,8 @@ quiet_cmd_lzma = LZMA    $@
+ cmd_lzma = (cat $(filter-out FORCE,$^) | \
+ 	lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ 	(rm -f $@ ; false)
+
+quiet_cmd_lzo = LZO    $@
+cmd_lzo = (cat $(filter-out FORCE,$^) | \
+	lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
--- a/target/linux/generic-2.6/patches-2.6.31/051-lzo_compressed_kernel_for_arm.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/051-lzo_compressed_kernel_for_arm.patch
@ -0,0 +1,298 @@
+diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
+index 1c4119c..350921d 100644
+--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
+@@ -18,6 +18,8 @@ config ARM
+ 	select HAVE_KRETPROBES if (HAVE_KPROBES)
+ 	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+ 	select HAVE_GENERIC_DMA_COHERENT
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_LZO
+ 	help
+ 	  The ARM series is a line of low-power-consumption RISC chip designs
+ 	  licensed by ARM Ltd and targeted at embedded applications and
+diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
+index ce39dc5..5b4629b 100644
+--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
+@@ -63,8 +63,12 @@ endif
+ 
+ SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
+ 
+-targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
+-		 head.o misc.o $(OBJS)
+suffix_$(CONFIG_KERNEL_GZIP) = gzip
+suffix_$(CONFIG_KERNEL_LZO)  = lzo
+
+targets       := vmlinux vmlinux.lds \
+		 piggy.$(suffix_y) piggy.$(suffix_y).o \
+		 font.o font.c head.o misc.o $(OBJS)
+ 
+ ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ ORIG_CFLAGS := $(KBUILD_CFLAGS)
+@@ -87,22 +91,31 @@ endif
+ ifneq ($(PARAMS_PHYS),)
+ LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
+ endif
+-LDFLAGS_vmlinux += -p --no-undefined -X \
+-	$(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
+# ?
+LDFLAGS_vmlinux += -p
+# Report unresolved symbol references
+LDFLAGS_vmlinux += --no-undefined
+# Delete all temporary local symbols
+LDFLAGS_vmlinux += -X
+# Next argument is a linker script
+LDFLAGS_vmlinux += -T
+
+# For __aeabi_uidivmod
+lib1funcs = $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.o
+ 
+ # Don't allow any static data in misc.o, which
+ # would otherwise mess up our GOT table
+ CFLAGS_misc.o := -Dstatic=
+ 
+-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
+-	 	$(addprefix $(obj)/, $(OBJS)) FORCE
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
+	 	$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
+ 	$(call if_changed,ld)
+ 	@:
+ 
+-$(obj)/piggy.gz: $(obj)/../Image FORCE
+-	$(call if_changed,gzip)
+$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
+	$(call if_changed,$(suffix_y))
+ 
+-$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
+$(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE
+ 
+ CFLAGS_font.o := -Dstatic=
+ 
+diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
+index 17153b5..7e0fe4d 100644
+--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
+@@ -18,10 +18,15 @@
+ 
+ unsigned int __machine_arch_type;
+ 
+#define _LINUX_STRING_H_
+
+ #include <linux/compiler.h>	/* for inline */
+ #include <linux/types.h>	/* for size_t */
+ #include <linux/stddef.h>	/* for NULL */
+ #include <asm/string.h>
+#include <linux/linkage.h>
+
+#include <asm/unaligned.h>
+ 
+ #ifdef STANDALONE_DEBUG
+ #define putstr printf
+@@ -188,34 +193,8 @@ static inline __ptr_t memcpy(__ptr_t __dest, __const __ptr_t __src,
+ /*
+  * gzip delarations
+  */
+-#define OF(args)  args
+ #define STATIC static
+ 
+-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 */
+-
+-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+-
+ /* Diagnostic functions */
+ #ifdef DEBUG
+ #  define Assert(cond,msg) {if(!(cond)) error(msg);}
+@@ -233,24 +212,20 @@ static unsigned outcnt;		/* bytes in output buffer */
+ #  define Tracecv(c,x)
+ #endif
+ 
+-static int  fill_inbuf(void);
+-static void flush_window(void);
+ static void error(char *m);
+ 
+ extern char input_data[];
+ extern char input_data_end[];
+ 
+-static uch *output_data;
+-static ulg output_ptr;
+-static ulg bytes_out;
+static unsigned char *output_data;
+static unsigned long output_ptr;
+ 
+ static void error(char *m);
+ 
+ static void putstr(const char *);
+ 
+-extern int end;
+-static ulg free_mem_ptr;
+-static ulg free_mem_end_ptr;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+ 
+ #ifdef STANDALONE_DEBUG
+ #define NO_INFLATE_MALLOC
+@@ -258,46 +233,13 @@ static ulg free_mem_end_ptr;
+ 
+ #define ARCH_HAS_DECOMP_WDOG
+ 
+-#include "../../../../lib/inflate.c"
+-
+-/* ===========================================================================
+- * Fill the input buffer. This is called only when the buffer is empty
+- * and at least one byte is really needed.
+- */
+-int fill_inbuf(void)
+-{
+-	if (insize != 0)
+-		error("ran out of input data");
+-
+-	inbuf = input_data;
+-	insize = &input_data_end[0] - &input_data[0];
+-
+-	inptr = 1;
+-	return inbuf[0];
+-}
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+ 
+-/* ===========================================================================
+- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+- * (Used for the decompressed data only.)
+- */
+-void flush_window(void)
+-{
+-	ulg c = crc;
+-	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;
+-	putstr(".");
+-}
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+ 
+ #ifndef arch_error
+ #define arch_error(x)
+@@ -314,22 +256,33 @@ static void error(char *x)
+ 	while(1);	/* Halt */
+ }
+ 
+asmlinkage void __div0(void)
+{
+	error("Attempting division by 0!");
+}
+
+ #ifndef STANDALONE_DEBUG
+ 
+-ulg
+-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
+-		  int arch_id)
+unsigned long
+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
+		unsigned long free_mem_ptr_end_p,
+		int arch_id)
+ {
+-	output_data		= (uch *)output_start;	/* Points to kernel start */
+	unsigned char *tmp;
+
+	output_data		= (unsigned char *)output_start;
+ 	free_mem_ptr		= free_mem_ptr_p;
+ 	free_mem_end_ptr	= free_mem_ptr_end_p;
+ 	__machine_arch_type	= arch_id;
+ 
+ 	arch_decomp_setup();
+ 
+-	makecrc();
+	tmp = (unsigned char *) (((unsigned long)input_data_end) - 4);
+	output_ptr = get_unaligned_le32(tmp);
+
+ 	putstr("Uncompressing Linux...");
+-	gunzip();
+	decompress(input_data, input_data_end - input_data,
+			NULL, NULL, output_data, NULL, error);
+ 	putstr(" done, booting the kernel.\n");
+ 	return output_ptr;
+ }
+@@ -341,11 +294,10 @@ int main()
+ {
+ 	output_data = output_buffer;
+ 
+-	makecrc();
+ 	putstr("Uncompressing Linux...");
+-	gunzip();
+	decompress(input_data, input_data_end - input_data,
+			NULL, NULL, output_data, NULL, error);
+ 	putstr("done.\n");
+ 	return 0;
+ }
+ #endif
+-	
+diff --git a/arch/arm/boot/compressed/piggy.S b/arch/arm/boot/compressed/piggy.S
+deleted file mode 100644
+index 54c9518..0000000
+--- a/arch/arm/boot/compressed/piggy.S
+++ /dev/null
+@@ -1,6 +0,0 @@
+-	.section .piggydata,#alloc
+-	.globl	input_data
+-input_data:
+-	.incbin	"arch/arm/boot/compressed/piggy.gz"
+-	.globl	input_data_end
+-input_data_end:
+diff --git a/arch/arm/boot/compressed/piggy.gzip.S b/arch/arm/boot/compressed/piggy.gzip.S
+new file mode 100644
+index 0000000..a68adf9
+--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.gzip.S
+@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.gzip"
+	.globl	input_data_end
+input_data_end:
+diff --git a/arch/arm/boot/compressed/piggy.lzo.S b/arch/arm/boot/compressed/piggy.lzo.S
+new file mode 100644
+index 0000000..a425ad9
+--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.lzo.S
+@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lzo"
+	.globl	input_data_end
+input_data_end:
--- a/target/linux/generic-2.6/patches-2.6.31/052-lzo_compressed_kernel_for_x86.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/052-lzo_compressed_kernel_for_x86.patch
@ -0,0 +1,54 @@
+diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
+index 72ace95..89f7771 100644
+--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
+@@ -49,6 +49,7 @@ config X86
+ 	select HAVE_KERNEL_GZIP
+ 	select HAVE_KERNEL_BZIP2
+ 	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
+ 	select HAVE_ARCH_KMEMCHECK
+ 
+ config OUTPUT_FORMAT
+diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile
+index f8ed065..0e835d0 100644
+--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
+@@ -4,7 +4,7 @@
+ # create a compressed vmlinux image from the original vmlinux
+ #
+ 
+-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.lzo head_$(BITS).o misc.o piggy.o
+ 
+ KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
+ KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
+@@ -48,10 +48,13 @@ $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.all-y) FORCE
+ 	$(call if_changed,bzip2)
+ $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
+ 	$(call if_changed,lzma)
+$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
+	$(call if_changed,lzo)
+ 
+ suffix-$(CONFIG_KERNEL_GZIP)	:= gz
+ suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
+ suffix-$(CONFIG_KERNEL_LZMA)	:= lzma
+suffix-$(CONFIG_KERNEL_LZO) 	:= lzo
+ 
+ quiet_cmd_mkpiggy = MKPIGGY $@
+       cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
+diff --git a/arch/x86/boot/compressed/misc.c b/arch/x86/boot/compressed/misc.c
+index 842b2a3..3b22fe8 100644
+--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
+@@ -162,6 +162,10 @@ static int lines, cols;
+ #include "../../../../lib/decompress_unlzma.c"
+ #endif
+ 
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+ static void scroll(void)
+ {
+ 	int i;
--- a/target/linux/generic-2.6/patches-2.6.31/053-lzo_compression_for_initramfs.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/053-lzo_compression_for_initramfs.patch
@ -0,0 +1,114 @@
+diff --git a/lib/Kconfig b/lib/Kconfig
+index bb1326d..8639349 100644
+--- a/lib/Kconfig
+++ b/lib/Kconfig
+@@ -117,6 +117,10 @@ config DECOMPRESS_BZIP2
+ config DECOMPRESS_LZMA
+ 	tristate
+ 
+config DECOMPRESS_LZO
+	select LZO_DECOMPRESS
+	tristate
+
+ #
+ # Generic allocator support is selected if needed
+ #
+diff --git a/lib/Makefile b/lib/Makefile
+index 2e78277..cfa4041 100644
+--- a/lib/Makefile
+++ b/lib/Makefile
+@@ -69,6 +69,7 @@ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
+ lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
+ lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
+ lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
+lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
+ 
+ obj-$(CONFIG_TEXTSEARCH) += textsearch.o
+ obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
+diff --git a/lib/decompress.c b/lib/decompress.c
+index d2842f5..a760681 100644
+--- a/lib/decompress.c
+++ b/lib/decompress.c
+@@ -9,6 +9,7 @@
+ #include <linux/decompress/bunzip2.h>
+ #include <linux/decompress/unlzma.h>
+ #include <linux/decompress/inflate.h>
+#include <linux/decompress/unlzo.h>
+ 
+ #include <linux/types.h>
+ #include <linux/string.h>
+@@ -22,6 +23,9 @@
+ #ifndef CONFIG_DECOMPRESS_LZMA
+ # define unlzma NULL
+ #endif
+#ifndef CONFIG_DECOMPRESS_LZO
+# define unlzo NULL
+#endif
+ 
+ static const struct compress_format {
+ 	unsigned char magic[2];
+@@ -32,6 +36,7 @@ static const struct compress_format {
+ 	{ {037, 0236}, "gzip", gunzip },
+ 	{ {0x42, 0x5a}, "bzip2", bunzip2 },
+ 	{ {0x5d, 0x00}, "lzma", unlzma },
+	{ {0x89, 0x4c}, "lzo", unlzo },
+ 	{ {0, 0}, NULL, NULL }
+ };
+ 
+diff --git a/usr/Kconfig b/usr/Kconfig
+index 1c3039f..e2721f5 100644
+--- a/usr/Kconfig
+++ b/usr/Kconfig
+@@ -72,6 +72,15 @@ config RD_LZMA
+ 	  Support loading of a LZMA encoded initial ramdisk or cpio buffer
+ 	  If unsure, say N.
+ 
+config RD_LZO
+	bool "Support initial ramdisks compressed using LZO" if EMBEDDED
+	default !EMBEDDED
+	depends on BLK_DEV_INITRD
+	select DECOMPRESS_LZO
+	help
+	  Support loading of a LZO encoded initial ramdisk or cpio buffer
+	  If unsure, say N.
+
+ choice
+ 	prompt "Built-in initramfs compression mode" if INITRAMFS_SOURCE!=""
+ 	help
+@@ -108,16 +117,15 @@ config INITRAMFS_COMPRESSION_GZIP
+ 	bool "Gzip"
+ 	depends on RD_GZIP
+ 	help
+-	  The old and tried gzip compression. Its compression ratio is
+-	  the poorest among the 3 choices; however its speed (both
+-	  compression and decompression) is the fastest.
+	  The old and tried gzip compression. It provides a good balance
+	  between compression ratio and decompression speed.
+ 
+ config INITRAMFS_COMPRESSION_BZIP2
+ 	bool "Bzip2"
+ 	depends on RD_BZIP2
+ 	help
+ 	  Its compression ratio and speed is intermediate.
+-	  Decompression speed is slowest among the three.  The initramfs
+	  Decompression speed is slowest among the four.  The initramfs
+ 	  size is about 10% smaller with bzip2, in comparison to gzip.
+ 	  Bzip2 uses a large amount of memory. For modern kernels you
+ 	  will need at least 8MB RAM or more for booting.
+@@ -128,7 +136,15 @@ config INITRAMFS_COMPRESSION_LZMA
+ 	help
+ 	  The most recent compression algorithm.
+ 	  Its ratio is best, decompression speed is between the other
+-	  two. Compression is slowest.	The initramfs size is about 33%
+	  three. Compression is slowest. The initramfs size is about 33%
+ 	  smaller with LZMA in comparison to gzip.
+ 
+config INITRAMFS_COMPRESSION_LZO
+	bool "LZO"
+	depends on RD_LZO
+	help
+	  Its compression ratio is the poorest among the four. The kernel
+	  size is about about 10% bigger than gzip; however its speed
+	  (both compression and decompression) is the fastest.
+
+ endchoice
--- a/target/linux/generic-2.6/patches-2.6.31/055-lzma_arm_kernel.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/055-lzma_arm_kernel.patch
@ -0,0 +1,69 @@
+From d0f226a0f104c7d1da1d215b8013359273e39e18 Mon Sep 17 00:00:00 2001
+From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
+Date: Fri, 16 Oct 2009 16:17:22 +0200
+Subject: [PATCH] Add LZMA decompression on ARM
+
+
+Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
+---
+ arch/arm/Kconfig                      |    1 +
+ arch/arm/boot/compressed/Makefile     |    1 +
+ arch/arm/boot/compressed/misc.c       |    4 ++++
+ arch/arm/boot/compressed/piggy.lzma.S |    6 ++++++
+ 4 files changed, 12 insertions(+), 0 deletions(-)
+ create mode 100644 arch/arm/boot/compressed/piggy.lzma.S
+
+diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
+index ea71c0c..f5bf779 100644
+--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
+@@ -20,6 +20,7 @@ config ARM
+ 	select HAVE_GENERIC_DMA_COHERENT
+ 	select HAVE_KERNEL_GZIP
+ 	select HAVE_KERNEL_LZO
+	select HAVE_KERNEL_LZMA
+ 	help
+ 	  The ARM series is a line of low-power-consumption RISC chip designs
+ 	  licensed by ARM Ltd and targeted at embedded applications and
+diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
+index 5b4629b..dcfcb74 100644
+--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
+@@ -65,6 +65,7 @@ SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
+ 
+ suffix_$(CONFIG_KERNEL_GZIP) = gzip
+ suffix_$(CONFIG_KERNEL_LZO)  = lzo
+suffix_$(CONFIG_KERNEL_LZMA)  = lzma
+ 
+ targets       := vmlinux vmlinux.lds \
+ 		 piggy.$(suffix_y) piggy.$(suffix_y).o \
+diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c
+index 7e0fe4d..4e35a10 100644
+--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
+@@ -237,6 +237,10 @@ static unsigned long free_mem_end_ptr;
+ #include "../../../../lib/decompress_inflate.c"
+ #endif
+ 
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+ #ifdef CONFIG_KERNEL_LZO
+ #include "../../../../lib/decompress_unlzo.c"
+ #endif
+diff --git a/arch/arm/boot/compressed/piggy.lzma.S b/arch/arm/boot/compressed/piggy.lzma.S
+new file mode 100644
+index 0000000..d7e69cf
+--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.lzma.S
+@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lzma"
+	.globl	input_data_end
+input_data_end:
+-- 
+1.6.5
+
--- a/target/linux/generic-2.6/patches-2.6.31/960-arm_lzma_loader.patch
+++ b/target/linux/generic-2.6/patches-2.6.31/960-arm_lzma_loader.patch
@ -1,710 +0,0 @@
--- a/arch/arm/boot/compressed/Makefile
-+++ b/arch/arm/boot/compressed/Makefile
-@@ -63,7 +63,7 @@ endif
- 
- SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
- 
-targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
-+targets       := vmlinux vmlinux.lds piggy.lzma piggy.o font.o font.c \
- 		 head.o misc.o $(OBJS)
- 
- ifeq ($(CONFIG_FUNCTION_TRACER),y)
-@@ -99,10 +99,10 @@ $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj
- 	$(call if_changed,ld)
- 	@:
- 
-$(obj)/piggy.gz: $(obj)/../Image FORCE
-	$(call if_changed,gzip)
-+$(obj)/piggy.lzma: $(obj)/../Image FORCE
-+	$(call if_changed,lzma)
- 
-$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
-+$(obj)/piggy.o:  $(obj)/piggy.lzma FORCE
- 
- CFLAGS_font.o := -Dstatic=
- 
--- a/arch/arm/boot/compressed/misc.c
-+++ b/arch/arm/boot/compressed/misc.c
-@@ -185,36 +185,10 @@ static inline __ptr_t memcpy(__ptr_t __d
- 	return __dest;
- }
- 
-/*
- * gzip delarations
- */
-#define OF(args)  args
-#define STATIC static
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-+#define WSIZE 0x20000		/* Window size must be at least 128k, */
- 				/* 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 */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-+static u8 window[WSIZE];	/* Sliding window buffer */
- 
- /* Diagnostic functions */
- #ifdef DEBUG
-@@ -233,24 +207,21 @@ static unsigned outcnt;		/* bytes in out
- #  define Tracecv(c,x)
- #endif
- 
-static int  fill_inbuf(void);
-static void flush_window(void);
- static void error(char *m);
- 
- extern char input_data[];
- extern char input_data_end[];
- 
-static uch *output_data;
-static ulg output_ptr;
-static ulg bytes_out;
-+static unsigned long output_ptr;
-+static unsigned long bytes_out;
- 
- static void error(char *m);
- 
- static void putstr(const char *);
- 
- extern int end;
-static ulg free_mem_ptr;
-static ulg free_mem_end_ptr;
-+static unsigned long free_mem_ptr;
-+static unsigned long free_mem_end_ptr;
- 
- #ifdef STANDALONE_DEBUG
- #define NO_INFLATE_MALLOC
-@@ -258,50 +229,10 @@ static ulg free_mem_end_ptr;
- 
- #define ARCH_HAS_DECOMP_WDOG
- 
-#include "../../../../lib/inflate.c"
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-int fill_inbuf(void)
-{
-	if (insize != 0)
-		error("ran out of input data");
-
-	inbuf = input_data;
-	insize = &input_data_end[0] - &input_data[0];
-
-	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.)
- */
-void flush_window(void)
-{
-	ulg c = crc;
-	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;
-	putstr(".");
-}
-
- #ifndef arch_error
- #define arch_error(x)
- #endif
-+#include "unlzma.c"
- 
- static void error(char *x)
- {
-@@ -316,20 +247,16 @@ static void error(char *x)
- 
- #ifndef STANDALONE_DEBUG
- 
-ulg
-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
-+unsigned long
-+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, unsigned long free_mem_ptr_end_p,
- 		  int arch_id)
- {
-	output_data		= (uch *)output_start;	/* Points to kernel start */
-	free_mem_ptr		= free_mem_ptr_p;
-	free_mem_end_ptr	= free_mem_ptr_end_p;
- 	__machine_arch_type	= arch_id;
- 
- 	arch_decomp_setup();
- 
-	makecrc();
- 	putstr("Uncompressing Linux...");
-	gunzip();
-+	output_ptr += unlzma((u8 *) output_start, input_data, window);
- 	putstr(" done, booting the kernel.\n");
- 	return output_ptr;
- }
-@@ -339,11 +266,8 @@ char output_buffer[1500*1024];
- 
- int main()
- {
-	output_data = output_buffer;
-
-	makecrc();
- 	putstr("Uncompressing Linux...");
-	gunzip();
-+	unlzma((u8 *) output_buffer, input_data, window);
- 	putstr("done.\n");
- 	return 0;
- }
--- a/arch/arm/boot/compressed/piggy.S
-+++ b/arch/arm/boot/compressed/piggy.S
-@@ -1,6 +1,6 @@
- 	.section .piggydata,#alloc
- 	.globl	input_data
- input_data:
-	.incbin	"arch/arm/boot/compressed/piggy.gz"
-+	.incbin	"arch/arm/boot/compressed/piggy.lzma"
- 	.globl	input_data_end
- input_data_end:
--- /dev/null
-+++ b/arch/arm/boot/compressed/unlzma.c
-@@ -0,0 +1,429 @@
-+/*
-+ * Copyright (c) 2009  Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * 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,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * uncompress.c
-+ */
-+
-+#include <linux/types.h>
-+#include <asm/byteorder.h>
-+#include "unlzma.h"
-+
-+struct unlzma_ctx {
-+	const u8 *next_in;
-+	u8 *next_out;
-+	u8 *outbuf;
-+
-+	/* reader state */
-+	u32 code;
-+	u32 range;
-+	u32 bound;
-+
-+	/* writer state */
-+	u8 previous_byte;
-+	ssize_t pos;
-+
-+	/* cstate */
-+	int state;
-+	u32 rep0, rep1, rep2, rep3;
-+
-+	void *workspace;
-+} ctx;
-+
-+static int inbs = 0;
-+static inline u8
-+rc_read(void)
-+{
-+#if 0
-+	if (unlikely(++inbs > 16 * 1024)) {
-+		putstr(".");
-+		inbs = 0;
-+	}
-+#endif
-+	return *(ctx.next_in++);
-+}
-+
-+
-+static inline void
-+rc_get_code(void)
-+{
-+	ctx.code = (ctx.code << 8) | rc_read();
-+}
-+
-+static inline void
-+rc_normalize(void)
-+{
-+	if (ctx.range < (1 << RC_TOP_BITS)) {
-+		ctx.range <<= 8;
-+		rc_get_code();
-+	}
-+}
-+
-+static inline int
-+rc_is_bit_0(u16 *p)
-+{
-+	rc_normalize();
-+	ctx.bound = *p * (ctx.range >> RC_MODEL_TOTAL_BITS);
-+	return ctx.code < ctx.bound;
-+}
-+
-+static inline void
-+rc_update_bit_0(u16 *p)
-+{
-+	ctx.range = ctx.bound;
-+	*p += ((1 << RC_MODEL_TOTAL_BITS) - *p) >> RC_MOVE_BITS;
-+}
-+
-+static inline void
-+rc_update_bit_1(u16 *p)
-+{
-+	ctx.range -= ctx.bound;
-+	ctx.code -= ctx.bound;
-+	*p -= *p >> RC_MOVE_BITS;
-+}
-+
-+static inline bool
-+rc_get_bit(u16 *p, int *symbol)
-+{
-+	if (rc_is_bit_0(p)) {
-+		rc_update_bit_0(p);
-+		*symbol *= 2;
-+		return 0;
-+	} else {
-+		rc_update_bit_1(p);
-+		*symbol = *symbol * 2 + 1;
-+		return 1;
-+	}
-+}
-+
-+static inline int
-+rc_direct_bit(void)
-+{
-+	rc_normalize();
-+	ctx.range >>= 1;
-+	if (ctx.code >= ctx.range) {
-+		ctx.code -= ctx.range;
-+		return 1;
-+	}
-+	return 0;
-+}
-+
-+static inline void
-+rc_bit_tree_decode(u16 *p, int num_levels, int *symbol)
-+{
-+	int i = num_levels;
-+
-+	*symbol = 1;
-+	while (i--)
-+		rc_get_bit(p + *symbol, symbol);
-+	*symbol -= 1 << num_levels;
-+}
-+
-+static inline u8
-+peek_old_byte(u32 offs)
-+{
-+	u32 pos = ctx.pos - offs;
-+	return ctx.outbuf[pos];
-+}
-+
-+static inline void
-+write_byte(u8 byte)
-+{
-+	ctx.previous_byte = byte;
-+	*(ctx.next_out++) = byte;
-+	ctx.pos++;
-+}
-+
-+
-+static inline void
-+copy_byte(u32 offs)
-+{
-+	write_byte(peek_old_byte(offs));
-+}
-+
-+static inline void
-+copy_bytes(u32 rep0, int len)
-+{
-+	do {
-+		copy_byte(rep0);
-+		len--;
-+	} while (len != 0);
-+}
-+
-+static inline void
-+process_bit0(u16 *p, int pos_state, u16 *prob,
-+             int lc, u32 literal_pos_mask)
-+{
-+	int mi = 1;
-+	rc_update_bit_0(prob);
-+	prob = (p + LZMA_LITERAL +
-+		(LZMA_LIT_SIZE
-+		 * (((ctx.pos & literal_pos_mask) << lc)
-+		    + (ctx.previous_byte >> (8 - lc))))
-+		);
-+
-+	if (ctx.state >= LZMA_NUM_LIT_STATES) {
-+		int match_byte = peek_old_byte(ctx.rep0);
-+		do {
-+			u16 bit;
-+			u16 *prob_lit;
-+
-+			match_byte <<= 1;
-+			bit = match_byte & 0x100;
-+			prob_lit = prob + 0x100 + bit + mi;
-+			if (rc_get_bit(prob_lit, &mi) != !!bit)
-+				break;
-+		} while (mi < 0x100);
-+	}
-+	while (mi < 0x100) {
-+		u16 *prob_lit = prob + mi;
-+		rc_get_bit(prob_lit, &mi);
-+	}
-+	write_byte(mi);
-+	if (ctx.state < 4)
-+		ctx.state = 0;
-+	else if (ctx.state < 10)
-+		ctx.state -= 3;
-+	else
-+		ctx.state -= 6;
-+}
-+
-+static inline void
-+process_bit1(u16 *p, int pos_state, u16 *prob)
-+{
-+	int offset;
-+	u16 *prob_len;
-+	int num_bits;
-+	int len;
-+
-+	rc_update_bit_1(prob);
-+	prob = p + LZMA_IS_REP + ctx.state;
-+	if (rc_is_bit_0(prob)) {
-+		rc_update_bit_0(prob);
-+		ctx.rep3 = ctx.rep2;
-+		ctx.rep2 = ctx.rep1;
-+		ctx.rep1 = ctx.rep0;
-+		ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 0 : 3;
-+		prob = p + LZMA_LEN_CODER;
-+	} else {
-+		rc_update_bit_1(prob);
-+		prob = p + LZMA_IS_REP_G0 + ctx.state;
-+		if (rc_is_bit_0(prob)) {
-+			rc_update_bit_0(prob);
-+			prob = (p + LZMA_IS_REP_0_LONG
-+				+ (ctx.state <<
-+				   LZMA_NUM_POS_BITS_MAX) +
-+				pos_state);
-+			if (rc_is_bit_0(prob)) {
-+				rc_update_bit_0(prob);
-+
-+				ctx.state = ctx.state < LZMA_NUM_LIT_STATES ?
-+					9 : 11;
-+				copy_byte(ctx.rep0);
-+				return;
-+			} else {
-+				rc_update_bit_1(prob);
-+			}
-+		} else {
-+			u32 distance;
-+
-+			rc_update_bit_1(prob);
-+			prob = p + LZMA_IS_REP_G1 + ctx.state;
-+			if (rc_is_bit_0(prob)) {
-+				rc_update_bit_0(prob);
-+				distance = ctx.rep1;
-+			} else {
-+				rc_update_bit_1(prob);
-+				prob = p + LZMA_IS_REP_G2 + ctx.state;
-+				if (rc_is_bit_0(prob)) {
-+					rc_update_bit_0(prob);
-+					distance = ctx.rep2;
-+				} else {
-+					rc_update_bit_1(prob);
-+					distance = ctx.rep3;
-+					ctx.rep3 = ctx.rep2;
-+				}
-+				ctx.rep2 = ctx.rep1;
-+			}
-+			ctx.rep1 = ctx.rep0;
-+			ctx.rep0 = distance;
-+		}
-+		ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 8 : 11;
-+		prob = p + LZMA_REP_LEN_CODER;
-+	}
-+
-+	prob_len = prob + LZMA_LEN_CHOICE;
-+	if (rc_is_bit_0(prob_len)) {
-+		rc_update_bit_0(prob_len);
-+		prob_len = (prob + LZMA_LEN_LOW
-+			    + (pos_state <<
-+			       LZMA_LEN_NUM_LOW_BITS));
-+		offset = 0;
-+		num_bits = LZMA_LEN_NUM_LOW_BITS;
-+	} else {
-+		rc_update_bit_1(prob_len);
-+		prob_len = prob + LZMA_LEN_CHOICE_2;
-+		if (rc_is_bit_0(prob_len)) {
-+			rc_update_bit_0(prob_len);
-+			prob_len = (prob + LZMA_LEN_MID
-+				    + (pos_state <<
-+				       LZMA_LEN_NUM_MID_BITS));
-+			offset = 1 << LZMA_LEN_NUM_LOW_BITS;
-+			num_bits = LZMA_LEN_NUM_MID_BITS;
-+		} else {
-+			rc_update_bit_1(prob_len);
-+			prob_len = prob + LZMA_LEN_HIGH;
-+			offset = ((1 << LZMA_LEN_NUM_LOW_BITS)
-+				  + (1 << LZMA_LEN_NUM_MID_BITS));
-+			num_bits = LZMA_LEN_NUM_HIGH_BITS;
-+		}
-+	}
-+
-+	rc_bit_tree_decode(prob_len, num_bits, &len);
-+	len += offset;
-+
-+	if (ctx.state < 4) {
-+		int pos_slot;
-+
-+		ctx.state += LZMA_NUM_LIT_STATES;
-+		prob =
-+			p + LZMA_POS_SLOT +
-+			((len <
-+			  LZMA_NUM_LEN_TO_POS_STATES ? len :
-+			  LZMA_NUM_LEN_TO_POS_STATES - 1)
-+			 << LZMA_NUM_POS_SLOT_BITS);
-+		rc_bit_tree_decode(prob,
-+				   LZMA_NUM_POS_SLOT_BITS,
-+				   &pos_slot);
-+		if (pos_slot >= LZMA_START_POS_MODEL_INDEX) {
-+			int i, mi;
-+			num_bits = (pos_slot >> 1) - 1;
-+			ctx.rep0 = 2 | (pos_slot & 1);
-+			if (pos_slot < LZMA_END_POS_MODEL_INDEX) {
-+				ctx.rep0 <<= num_bits;
-+				prob = p + LZMA_SPEC_POS +
-+					ctx.rep0 - pos_slot - 1;
-+			} else {
-+				num_bits -= LZMA_NUM_ALIGN_BITS;
-+				while (num_bits--)
-+					ctx.rep0 = (ctx.rep0 << 1) |
-+						rc_direct_bit();
-+				prob = p + LZMA_ALIGN;
-+				ctx.rep0 <<= LZMA_NUM_ALIGN_BITS;
-+				num_bits = LZMA_NUM_ALIGN_BITS;
-+			}
-+			i = 1;
-+			mi = 1;
-+			while (num_bits--) {
-+				if (rc_get_bit(prob + mi, &mi))
-+					ctx.rep0 |= i;
-+				i <<= 1;
-+			}
-+		} else
-+			ctx.rep0 = pos_slot;
-+		if (++(ctx.rep0) == 0)
-+			return;
-+	}
-+
-+	len += LZMA_MATCH_MIN_LEN;
-+
-+	copy_bytes(ctx.rep0, len);
-+}
-+
-+
-+static int
-+do_unlzma(void)
-+{
-+	u8 hdr_buf[sizeof(struct lzma_header)];
-+	struct lzma_header *header = (struct lzma_header *)hdr_buf;
-+	u32 pos_state_mask;
-+	u32 literal_pos_mask;
-+	int lc, pb, lp;
-+	int num_probs;
-+	int i, mi;
-+	u16 *p;
-+
-+	for (i = 0; i < sizeof(struct lzma_header); i++) {
-+		hdr_buf[i] = rc_read();
-+	}
-+
-+	ctx.pos = 0;
-+	ctx.state = 0;
-+	ctx.rep0 = ctx.rep1 = ctx.rep2 = ctx.rep3 = 1;
-+
-+	ctx.previous_byte = 0;
-+	ctx.code = 0;
-+	ctx.range = 0xFFFFFFFF;
-+
-+	if (header->pos >= (9 * 5 * 5))
-+		return -1;
-+
-+	mi = 0;
-+	lc = header->pos;
-+	while (lc >= 9) {
-+		mi++;
-+		lc -= 9;
-+	}
-+	pb = 0;
-+	lp = mi;
-+	while (lp >= 5) {
-+		pb++;
-+		lp -= 5;
-+	}
-+	pos_state_mask = (1 << pb) - 1;
-+	literal_pos_mask = (1 << lp) - 1;
-+
-+	p = (u16 *) ctx.workspace;
-+	if (!p)
-+		return -1;
-+
-+	num_probs = LZMA_LITERAL + (LZMA_LIT_SIZE << (lc + lp));
-+	for (i = 0; i < num_probs; i++)
-+		p[i] = (1 << RC_MODEL_TOTAL_BITS) >> 1;
-+
-+	for (i = 0; i < 5; i++)
-+		rc_get_code();
-+
-+	while (1) {
-+		int pos_state =	ctx.pos & pos_state_mask;
-+		u16 *prob = p + LZMA_IS_MATCH +
-+			(ctx.state << LZMA_NUM_POS_BITS_MAX) + pos_state;
-+		if (rc_is_bit_0(prob))
-+			process_bit0(p, pos_state, prob,
-+				     lc, literal_pos_mask);
-+		else {
-+			process_bit1(p, pos_state, prob);
-+			if (ctx.rep0 == 0)
-+				break;
-+		}
-+	}
-+
-+	return ctx.pos;
-+}
-+
-+
-+static int unlzma(unsigned char *dest, const unsigned char *src, unsigned char *workspace)
-+{
-+	memset(&ctx, 0, sizeof(ctx));
-+	ctx.outbuf = dest;
-+	ctx.next_in = src;
-+	ctx.next_out = dest;
-+	ctx.workspace = workspace;
-+
-+	return do_unlzma();
-+}
-+
-+
--- /dev/null
-+++ b/arch/arm/boot/compressed/unlzma.h
-@@ -0,0 +1,81 @@
-+/* LZMA uncompresion module for pcomp
-+ * Copyright (C) 2009  Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * Based on:
-+ *  Initial Linux kernel adaptation
-+ *  Copyright (C) 2006  Alain < alain@knaff.lu >
-+ *
-+ *  Based on small lzma deflate implementation/Small range coder
-+ *  implementation for lzma.
-+ *  Copyright (C) 2006  Aurelien Jacobs < aurel@gnuage.org >
-+ *
-+ *  Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/)
-+ *  Copyright (C) 1999-2005  Igor Pavlov
-+ *
-+ * 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 __UNLZMA_H
-+#define __UNLZMA_H
-+
-+struct lzma_header {
-+	__u8 pos;
-+	__le32 dict_size;
-+	__le64 uncompr_size;
-+} __attribute__ ((packed));
-+
-+
-+#define RC_TOP_BITS 24
-+#define RC_MOVE_BITS 5
-+#define RC_MODEL_TOTAL_BITS 11
-+
-+#define LZMA_BASE_SIZE 1846
-+#define LZMA_LIT_SIZE 768
-+
-+#define LZMA_NUM_POS_BITS_MAX 4
-+
-+#define LZMA_LEN_NUM_LOW_BITS 3
-+#define LZMA_LEN_NUM_MID_BITS 3
-+#define LZMA_LEN_NUM_HIGH_BITS 8
-+
-+#define LZMA_LEN_CHOICE 0
-+#define LZMA_LEN_CHOICE_2 (LZMA_LEN_CHOICE + 1)
-+#define LZMA_LEN_LOW (LZMA_LEN_CHOICE_2 + 1)
-+#define LZMA_LEN_MID (LZMA_LEN_LOW \
-+		      + (1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_LOW_BITS)))
-+#define LZMA_LEN_HIGH (LZMA_LEN_MID \
-+		       +(1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_MID_BITS)))
-+#define LZMA_NUM_LEN_PROBS (LZMA_LEN_HIGH + (1 << LZMA_LEN_NUM_HIGH_BITS))
-+
-+#define LZMA_NUM_STATES 12
-+#define LZMA_NUM_LIT_STATES 7
-+
-+#define LZMA_START_POS_MODEL_INDEX 4
-+#define LZMA_END_POS_MODEL_INDEX 14
-+#define LZMA_NUM_FULL_DISTANCES (1 << (LZMA_END_POS_MODEL_INDEX >> 1))
-+
-+#define LZMA_NUM_POS_SLOT_BITS 6
-+#define LZMA_NUM_LEN_TO_POS_STATES 4
-+
-+#define LZMA_NUM_ALIGN_BITS 4
-+
-+#define LZMA_MATCH_MIN_LEN 2
-+
-+#define LZMA_IS_MATCH 0
-+#define LZMA_IS_REP (LZMA_IS_MATCH + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
-+#define LZMA_IS_REP_G0 (LZMA_IS_REP + LZMA_NUM_STATES)
-+#define LZMA_IS_REP_G1 (LZMA_IS_REP_G0 + LZMA_NUM_STATES)
-+#define LZMA_IS_REP_G2 (LZMA_IS_REP_G1 + LZMA_NUM_STATES)
-+#define LZMA_IS_REP_0_LONG (LZMA_IS_REP_G2 + LZMA_NUM_STATES)
-+#define LZMA_POS_SLOT (LZMA_IS_REP_0_LONG \
-+		       + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
-+#define LZMA_SPEC_POS (LZMA_POS_SLOT \
-+		       +(LZMA_NUM_LEN_TO_POS_STATES << LZMA_NUM_POS_SLOT_BITS))
-+#define LZMA_ALIGN (LZMA_SPEC_POS \
-+		    + LZMA_NUM_FULL_DISTANCES - LZMA_END_POS_MODEL_INDEX)
-+#define LZMA_LEN_CODER (LZMA_ALIGN + (1 << LZMA_NUM_ALIGN_BITS))
-+#define LZMA_REP_LEN_CODER (LZMA_LEN_CODER + LZMA_NUM_LEN_PROBS)
-+#define LZMA_LITERAL (LZMA_REP_LEN_CODER + LZMA_NUM_LEN_PROBS)
-+
-+#endif
--- a/target/linux/generic-2.6/patches-2.6.32/050-lzo_compressed_kernels.patch
+++ b/target/linux/generic-2.6/patches-2.6.32/050-lzo_compressed_kernels.patch
@ -0,0 +1,309 @@
+--- /dev/null
+++ b/include/linux/decompress/unlzo.h
+@@ -0,0 +1,10 @@
+#ifndef DECOMPRESS_UNLZO_H
+#define DECOMPRESS_UNLZO_H
+
+int unlzo(unsigned char *inbuf, int len,
+	int(*fill)(void*, unsigned int),
+	int(*flush)(void*, unsigned int),
+	unsigned char *output,
+	int *pos,
+	void(*error)(char *x));
+#endif
+--- a/init/Kconfig
+++ b/init/Kconfig
+@@ -115,10 +115,13 @@ config HAVE_KERNEL_BZIP2
+ config HAVE_KERNEL_LZMA
+ 	bool
+ 
+config HAVE_KERNEL_LZO
+	bool
+
+ choice
+ 	prompt "Kernel compression mode"
+ 	default KERNEL_GZIP
+-	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA
+	depends on HAVE_KERNEL_GZIP || HAVE_KERNEL_BZIP2 || HAVE_KERNEL_LZMA || HAVE_KERNEL_LZO
+ 	help
+ 	  The linux kernel is a kind of self-extracting executable.
+ 	  Several compression algorithms are available, which differ
+@@ -141,9 +144,8 @@ config KERNEL_GZIP
+ 	bool "Gzip"
+ 	depends on HAVE_KERNEL_GZIP
+ 	help
+-	  The old and tried gzip compression. Its compression ratio is
+-	  the poorest among the 3 choices; however its speed (both
+-	  compression and decompression) is the fastest.
+	  The old and tried gzip compression. It provides a good balance
+	  between compression ratio and decompression speed.
+ 
+ config KERNEL_BZIP2
+ 	bool "Bzip2"
+@@ -164,6 +166,14 @@ config KERNEL_LZMA
+ 	  two. Compression is slowest.	The kernel size is about 33%
+ 	  smaller with LZMA in comparison to gzip.
+ 
+config KERNEL_LZO
+	bool "LZO"
+	depends on HAVE_KERNEL_LZO
+	help
+	  Its compression ratio is the poorest among the 4. The kernel
+	  size is about about 10% bigger than gzip; however its speed
+	  (both compression and decompression) is the fastest.
+
+ endchoice
+ 
+ config SWAP
+--- /dev/null
+++ b/lib/decompress_unlzo.c
+@@ -0,0 +1,208 @@
+/*
+ * LZO decompressor for the Linux kernel. Code borrowed from the lzo
+ * implementation by Markus Franz Xaver Johannes Oberhumer.
+ *
+ * Linux kernel adaptation:
+ * Copyright (C) 2009
+ * Albin Tonnerre, Free Electrons <albin.tonnerre@free-electrons.com>
+ *
+ * Original code:
+ * Copyright (C) 1996-2005 Markus Franz Xaver Johannes Oberhumer
+ * All Rights Reserved.
+ *
+ * lzop and the LZO library are free software; you can redistribute them
+ * and/or modify them under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; see the file COPYING.
+ * If not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Markus F.X.J. Oberhumer
+ * <markus@oberhumer.com>
+ * http://www.oberhumer.com/opensource/lzop/
+ */
+
+#ifdef STATIC
+#include "lzo/lzo1x_decompress.c"
+#else
+#include <linux/slab.h>
+#include <linux/decompress/unlzo.h>
+#endif
+
+#include <linux/types.h>
+#include <linux/lzo.h>
+#include <linux/decompress/mm.h>
+
+#include <linux/compiler.h>
+#include <asm/unaligned.h>
+
+static const unsigned char lzop_magic[] =
+	{ 0x89, 0x4c, 0x5a, 0x4f, 0x00, 0x0d, 0x0a, 0x1a, 0x0a };
+
+#define LZO_BLOCK_SIZE        (256*1024l)
+#define HEADER_HAS_FILTER      0x00000800L
+
+STATIC inline int INIT parse_header(u8 *input, u8 *skip)
+{
+	int l;
+	u8 *parse = input;
+	u8 level = 0;
+	u16 version;
+
+	/* read magic: 9 first bits */
+	for (l = 0; l < 9; l++) {
+		if (*parse++ != lzop_magic[l])
+			return 0;
+	}
+	/* get version (2bytes), skip library version (2),
+	 * 'need to be extracted' version (2) and
+	 * method (1) */
+	version = get_unaligned_be16(parse);
+	parse += 7;
+	if (version >= 0x0940)
+		level = *parse++;
+	if (get_unaligned_be32(parse) & HEADER_HAS_FILTER)
+		parse += 8; /* flags + filter info */
+	else
+		parse += 4; /* flags */
+
+	/* skip mode and mtime_low */
+	parse += 8;
+	if (version >= 0x0940)
+		parse += 4;	/* skip mtime_high */
+
+	l = *parse++;
+	/* don't care about the file name, and skip checksum */
+	parse += l + 4;
+
+	*skip = parse - input;
+	return 1;
+}
+
+STATIC inline int INIT unlzo(u8 *input, int in_len,
+				int (*fill) (void *, unsigned int),
+				int (*flush) (void *, unsigned int),
+				u8 *output, int *posp,
+				void (*error_fn) (char *x))
+{
+	u8 skip = 0, r = 0;
+	u32 src_len, dst_len;
+	size_t tmp;
+	u8 *in_buf, *in_buf_save, *out_buf;
+	int obytes_processed = 0;
+
+	set_error_fn(error_fn);
+
+	if (output)
+		out_buf = output;
+	else if (!flush) {
+		error("NULL output pointer and no flush function provided");
+		goto exit;
+	} else {
+		out_buf = malloc(LZO_BLOCK_SIZE);
+		if (!out_buf) {
+			error("Could not allocate output buffer");
+			goto exit;
+		}
+	}
+
+	if (input && fill) {
+		error("Both input pointer and fill function provided, don't know what to do");
+		goto exit_1;
+	} else if (input)
+		in_buf = input;
+	else if (!fill || !posp) {
+		error("NULL input pointer and missing position pointer or fill function");
+		goto exit_1;
+	} else {
+		in_buf = malloc(lzo1x_worst_compress(LZO_BLOCK_SIZE));
+		if (!in_buf) {
+			error("Could not allocate input buffer");
+			goto exit_1;
+		}
+	}
+	in_buf_save = in_buf;
+
+	if (posp)
+		*posp = 0;
+
+	if (fill)
+		fill(in_buf, lzo1x_worst_compress(LZO_BLOCK_SIZE));
+
+	if (!parse_header(input, &skip)) {
+		error("invalid header");
+		goto exit_2;
+	}
+	in_buf += skip;
+
+	if (posp)
+		*posp = skip;
+
+	for (;;) {
+		/* read uncompressed block size */
+		dst_len = get_unaligned_be32(in_buf);
+		in_buf += 4;
+
+		/* exit if last block */
+		if (dst_len == 0) {
+			if (posp)
+				*posp += 4;
+			break;
+		}
+
+		if (dst_len > LZO_BLOCK_SIZE) {
+			error("dest len longer than block size");
+			goto exit_2;
+		}
+
+		/* read compressed block size, and skip block checksum info */
+		src_len = get_unaligned_be32(in_buf);
+		in_buf += 8;
+
+		if (src_len <= 0 || src_len > dst_len) {
+			error("file corrupted");
+			goto exit_2;
+		}
+
+		/* decompress */
+		tmp = dst_len;
+		r = lzo1x_decompress_safe((u8 *) in_buf, src_len, out_buf, &tmp);
+
+		if (r != LZO_E_OK || dst_len != tmp) {
+			error("Compressed data violation");
+			goto exit_2;
+		}
+
+		obytes_processed += dst_len;
+		if (flush)
+			flush(out_buf, dst_len);
+		if (output)
+			out_buf += dst_len;
+		if (posp)
+			*posp += src_len + 12;
+		if (fill) {
+			in_buf = in_buf_save;
+			fill(in_buf, lzo1x_worst_compress(LZO_BLOCK_SIZE));
+		} else
+			in_buf += src_len;
+	}
+
+exit_2:
+	if (!input)
+		free(in_buf);
+exit_1:
+	if (!output)
+		free(out_buf);
+exit:
+	return obytes_processed;
+}
+
+#define decompress unlzo
+--- a/lib/lzo/lzo1x_decompress.c
+++ b/lib/lzo/lzo1x_decompress.c
+@@ -11,11 +11,13 @@
+  *  Richard Purdie <rpurdie@openedhand.com>
+  */
+ 
+#ifndef STATIC
+ #include <linux/module.h>
+ #include <linux/kernel.h>
+-#include <linux/lzo.h>
+-#include <asm/byteorder.h>
+#endif
+
+ #include <asm/unaligned.h>
+#include <linux/lzo.h>
+ #include "lzodefs.h"
+ 
+ #define HAVE_IP(x, ip_end, ip) ((size_t)(ip_end - ip) < (x))
+@@ -244,9 +246,10 @@ lookbehind_overrun:
+ 	*out_len = op - out;
+ 	return LZO_E_LOOKBEHIND_OVERRUN;
+ }
+-
+#ifndef STATIC
+ EXPORT_SYMBOL_GPL(lzo1x_decompress_safe);
+ 
+ MODULE_LICENSE("GPL");
+ MODULE_DESCRIPTION("LZO1X Decompressor");
+ 
+#endif
+--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
+@@ -230,3 +230,8 @@ quiet_cmd_lzma = LZMA    $@
+ cmd_lzma = (cat $(filter-out FORCE,$^) | \
+ 	lzma -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+ 	(rm -f $@ ; false)
+
+quiet_cmd_lzo = LZO    $@
+cmd_lzo = (cat $(filter-out FORCE,$^) | \
+	lzop -9 && $(call size_append, $(filter-out FORCE,$^))) > $@ || \
+	(rm -f $@ ; false)
--- a/target/linux/generic-2.6/patches-2.6.32/051-lzo_compressed_kernel_for_arm.patch
+++ b/target/linux/generic-2.6/patches-2.6.32/051-lzo_compressed_kernel_for_arm.patch
@ -0,0 +1,283 @@
+--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
+@@ -18,6 +18,8 @@ config ARM
+ 	select HAVE_KRETPROBES if (HAVE_KPROBES)
+ 	select HAVE_FUNCTION_TRACER if (!XIP_KERNEL)
+ 	select HAVE_GENERIC_DMA_COHERENT
+	select HAVE_KERNEL_GZIP
+	select HAVE_KERNEL_LZO
+ 	help
+ 	  The ARM series is a line of low-power-consumption RISC chip designs
+ 	  licensed by ARM Ltd and targeted at embedded applications and
+--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
+@@ -63,8 +63,12 @@ endif
+ 
+ SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
+ 
+-targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
+-		 head.o misc.o $(OBJS)
+suffix_$(CONFIG_KERNEL_GZIP) = gzip
+suffix_$(CONFIG_KERNEL_LZO)  = lzo
+
+targets       := vmlinux vmlinux.lds \
+		 piggy.$(suffix_y) piggy.$(suffix_y).o \
+		 font.o font.c head.o misc.o $(OBJS)
+ 
+ ifeq ($(CONFIG_FUNCTION_TRACER),y)
+ ORIG_CFLAGS := $(KBUILD_CFLAGS)
+@@ -87,22 +91,31 @@ endif
+ ifneq ($(PARAMS_PHYS),)
+ LDFLAGS_vmlinux += --defsym params_phys=$(PARAMS_PHYS)
+ endif
+-LDFLAGS_vmlinux += -p --no-undefined -X \
+-	$(shell $(CC) $(KBUILD_CFLAGS) --print-libgcc-file-name) -T
+# ?
+LDFLAGS_vmlinux += -p
+# Report unresolved symbol references
+LDFLAGS_vmlinux += --no-undefined
+# Delete all temporary local symbols
+LDFLAGS_vmlinux += -X
+# Next argument is a linker script
+LDFLAGS_vmlinux += -T
+
+# For __aeabi_uidivmod
+lib1funcs = $(srctree)/arch/$(SRCARCH)/lib/lib1funcs.o
+ 
+ # Don't allow any static data in misc.o, which
+ # would otherwise mess up our GOT table
+ CFLAGS_misc.o := -Dstatic=
+ 
+-$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.o \
+-	 	$(addprefix $(obj)/, $(OBJS)) FORCE
+$(obj)/vmlinux: $(obj)/vmlinux.lds $(obj)/$(HEAD) $(obj)/piggy.$(suffix_y).o \
+	 	$(addprefix $(obj)/, $(OBJS)) $(lib1funcs) FORCE
+ 	$(call if_changed,ld)
+ 	@:
+ 
+-$(obj)/piggy.gz: $(obj)/../Image FORCE
+-	$(call if_changed,gzip)
+$(obj)/piggy.$(suffix_y): $(obj)/../Image FORCE
+	$(call if_changed,$(suffix_y))
+ 
+-$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
+$(obj)/piggy.$(suffix_y).o:  $(obj)/piggy.$(suffix_y) FORCE
+ 
+ CFLAGS_font.o := -Dstatic=
+ 
+--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
+@@ -18,10 +18,15 @@
+ 
+ unsigned int __machine_arch_type;
+ 
+#define _LINUX_STRING_H_
+
+ #include <linux/compiler.h>	/* for inline */
+ #include <linux/types.h>	/* for size_t */
+ #include <linux/stddef.h>	/* for NULL */
+ #include <asm/string.h>
+#include <linux/linkage.h>
+
+#include <asm/unaligned.h>
+ 
+ #ifdef STANDALONE_DEBUG
+ #define putstr printf
+@@ -188,34 +193,8 @@ static inline __ptr_t memcpy(__ptr_t __d
+ /*
+  * gzip delarations
+  */
+-#define OF(args)  args
+ #define STATIC static
+ 
+-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 */
+-
+-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
+-
+ /* Diagnostic functions */
+ #ifdef DEBUG
+ #  define Assert(cond,msg) {if(!(cond)) error(msg);}
+@@ -233,24 +212,20 @@ static unsigned outcnt;		/* bytes in out
+ #  define Tracecv(c,x)
+ #endif
+ 
+-static int  fill_inbuf(void);
+-static void flush_window(void);
+ static void error(char *m);
+ 
+ extern char input_data[];
+ extern char input_data_end[];
+ 
+-static uch *output_data;
+-static ulg output_ptr;
+-static ulg bytes_out;
+static unsigned char *output_data;
+static unsigned long output_ptr;
+ 
+ static void error(char *m);
+ 
+ static void putstr(const char *);
+ 
+-extern int end;
+-static ulg free_mem_ptr;
+-static ulg free_mem_end_ptr;
+static unsigned long free_mem_ptr;
+static unsigned long free_mem_end_ptr;
+ 
+ #ifdef STANDALONE_DEBUG
+ #define NO_INFLATE_MALLOC
+@@ -258,46 +233,13 @@ static ulg free_mem_end_ptr;
+ 
+ #define ARCH_HAS_DECOMP_WDOG
+ 
+-#include "../../../../lib/inflate.c"
+-
+-/* ===========================================================================
+- * Fill the input buffer. This is called only when the buffer is empty
+- * and at least one byte is really needed.
+- */
+-int fill_inbuf(void)
+-{
+-	if (insize != 0)
+-		error("ran out of input data");
+-
+-	inbuf = input_data;
+-	insize = &input_data_end[0] - &input_data[0];
+-
+-	inptr = 1;
+-	return inbuf[0];
+-}
+#ifdef CONFIG_KERNEL_GZIP
+#include "../../../../lib/decompress_inflate.c"
+#endif
+ 
+-/* ===========================================================================
+- * Write the output window window[0..outcnt-1] and update crc and bytes_out.
+- * (Used for the decompressed data only.)
+- */
+-void flush_window(void)
+-{
+-	ulg c = crc;
+-	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;
+-	putstr(".");
+-}
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+ 
+ #ifndef arch_error
+ #define arch_error(x)
+@@ -314,22 +256,33 @@ static void error(char *x)
+ 	while(1);	/* Halt */
+ }
+ 
+asmlinkage void __div0(void)
+{
+	error("Attempting division by 0!");
+}
+
+ #ifndef STANDALONE_DEBUG
+ 
+-ulg
+-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
+-		  int arch_id)
+unsigned long
+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p,
+		unsigned long free_mem_ptr_end_p,
+		int arch_id)
+ {
+-	output_data		= (uch *)output_start;	/* Points to kernel start */
+	unsigned char *tmp;
+
+	output_data		= (unsigned char *)output_start;
+ 	free_mem_ptr		= free_mem_ptr_p;
+ 	free_mem_end_ptr	= free_mem_ptr_end_p;
+ 	__machine_arch_type	= arch_id;
+ 
+ 	arch_decomp_setup();
+ 
+-	makecrc();
+	tmp = (unsigned char *) (((unsigned long)input_data_end) - 4);
+	output_ptr = get_unaligned_le32(tmp);
+
+ 	putstr("Uncompressing Linux...");
+-	gunzip();
+	decompress(input_data, input_data_end - input_data,
+			NULL, NULL, output_data, NULL, error);
+ 	putstr(" done, booting the kernel.\n");
+ 	return output_ptr;
+ }
+@@ -341,11 +294,10 @@ int main()
+ {
+ 	output_data = output_buffer;
+ 
+-	makecrc();
+ 	putstr("Uncompressing Linux...");
+-	gunzip();
+	decompress(input_data, input_data_end - input_data,
+			NULL, NULL, output_data, NULL, error);
+ 	putstr("done.\n");
+ 	return 0;
+ }
+ #endif
+-	
+--- a/arch/arm/boot/compressed/piggy.S
+++ /dev/null
+@@ -1,6 +0,0 @@
+-	.section .piggydata,#alloc
+-	.globl	input_data
+-input_data:
+-	.incbin	"arch/arm/boot/compressed/piggy.gz"
+-	.globl	input_data_end
+-input_data_end:
+--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.gzip.S
+@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.gzip"
+	.globl	input_data_end
+input_data_end:
+--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.lzo.S
+@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lzo"
+	.globl	input_data_end
+input_data_end:
--- a/target/linux/generic-2.6/patches-2.6.32/052-lzo_compressed_kernel_for_x86.patch
+++ b/target/linux/generic-2.6/patches-2.6.32/052-lzo_compressed_kernel_for_x86.patch
@ -0,0 +1,48 @@
+--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
+@@ -49,6 +49,7 @@ config X86
+ 	select HAVE_KERNEL_GZIP
+ 	select HAVE_KERNEL_BZIP2
+ 	select HAVE_KERNEL_LZMA
+	select HAVE_KERNEL_LZO
+ 	select HAVE_ARCH_KMEMCHECK
+ 
+ config OUTPUT_FORMAT
+--- a/arch/x86/boot/compressed/Makefile
+++ b/arch/x86/boot/compressed/Makefile
+@@ -4,7 +4,7 @@
+ # create a compressed vmlinux image from the original vmlinux
+ #
+ 
+-targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma head_$(BITS).o misc.o piggy.o
+targets := vmlinux.lds vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma vmlinux.bin.lzo head_$(BITS).o misc.o piggy.o
+ 
+ KBUILD_CFLAGS := -m$(BITS) -D__KERNEL__ $(LINUX_INCLUDE) -O2
+ KBUILD_CFLAGS += -fno-strict-aliasing -fPIC
+@@ -48,10 +48,13 @@ $(obj)/vmlinux.bin.bz2: $(vmlinux.bin.al
+ 	$(call if_changed,bzip2)
+ $(obj)/vmlinux.bin.lzma: $(vmlinux.bin.all-y) FORCE
+ 	$(call if_changed,lzma)
+$(obj)/vmlinux.bin.lzo: $(vmlinux.bin.all-y) FORCE
+	$(call if_changed,lzo)
+ 
+ suffix-$(CONFIG_KERNEL_GZIP)	:= gz
+ suffix-$(CONFIG_KERNEL_BZIP2)	:= bz2
+ suffix-$(CONFIG_KERNEL_LZMA)	:= lzma
+suffix-$(CONFIG_KERNEL_LZO) 	:= lzo
+ 
+ quiet_cmd_mkpiggy = MKPIGGY $@
+       cmd_mkpiggy = $(obj)/mkpiggy $< > $@ || ( rm -f $@ ; false )
+--- a/arch/x86/boot/compressed/misc.c
+++ b/arch/x86/boot/compressed/misc.c
+@@ -162,6 +162,10 @@ static int lines, cols;
+ #include "../../../../lib/decompress_unlzma.c"
+ #endif
+ 
+#ifdef CONFIG_KERNEL_LZO
+#include "../../../../lib/decompress_unlzo.c"
+#endif
+
+ static void scroll(void)
+ {
+ 	int i;
--- a/target/linux/generic-2.6/patches-2.6.32/053-lzo_compression_for_initramfs.patch
+++ b/target/linux/generic-2.6/patches-2.6.32/053-lzo_compression_for_initramfs.patch
@ -0,0 +1,106 @@
+--- a/lib/Kconfig
+++ b/lib/Kconfig
+@@ -120,6 +120,10 @@ config DECOMPRESS_LZMA
+ config DECOMPRESS_LZMA_NEEDED
+ 	 boolean
+ 
+config DECOMPRESS_LZO
+	select LZO_DECOMPRESS
+	tristate
+
+ #
+ # Generic allocator support is selected if needed
+ #
+--- a/lib/Makefile
+++ b/lib/Makefile
+@@ -69,6 +69,7 @@ obj-$(CONFIG_LZO_DECOMPRESS) += lzo/
+ lib-$(CONFIG_DECOMPRESS_GZIP) += decompress_inflate.o
+ lib-$(CONFIG_DECOMPRESS_BZIP2) += decompress_bunzip2.o
+ lib-$(CONFIG_DECOMPRESS_LZMA) += decompress_unlzma.o
+lib-$(CONFIG_DECOMPRESS_LZO) += decompress_unlzo.o
+ 
+ obj-$(CONFIG_TEXTSEARCH) += textsearch.o
+ obj-$(CONFIG_TEXTSEARCH_KMP) += ts_kmp.o
+--- a/lib/decompress.c
+++ b/lib/decompress.c
+@@ -9,6 +9,7 @@
+ #include <linux/decompress/bunzip2.h>
+ #include <linux/decompress/unlzma.h>
+ #include <linux/decompress/inflate.h>
+#include <linux/decompress/unlzo.h>
+ 
+ #include <linux/types.h>
+ #include <linux/string.h>
+@@ -22,6 +23,9 @@
+ #ifndef CONFIG_DECOMPRESS_LZMA
+ # define unlzma NULL
+ #endif
+#ifndef CONFIG_DECOMPRESS_LZO
+# define unlzo NULL
+#endif
+ 
+ static const struct compress_format {
+ 	unsigned char magic[2];
+@@ -32,6 +36,7 @@ static const struct compress_format {
+ 	{ {037, 0236}, "gzip", gunzip },
+ 	{ {0x42, 0x5a}, "bzip2", bunzip2 },
+ 	{ {0x5d, 0x00}, "lzma", unlzma },
+	{ {0x89, 0x4c}, "lzo", unlzo },
+ 	{ {0, 0}, NULL, NULL }
+ };
+ 
+--- a/usr/Kconfig
+++ b/usr/Kconfig
+@@ -72,6 +72,15 @@ config RD_LZMA
+ 	  Support loading of a LZMA encoded initial ramdisk or cpio buffer
+ 	  If unsure, say N.
+ 
+config RD_LZO
+	bool "Support initial ramdisks compressed using LZO" if EMBEDDED
+	default !EMBEDDED
+	depends on BLK_DEV_INITRD
+	select DECOMPRESS_LZO
+	help
+	  Support loading of a LZO encoded initial ramdisk or cpio buffer
+	  If unsure, say N.
+
+ choice
+ 	prompt "Built-in initramfs compression mode" if INITRAMFS_SOURCE!=""
+ 	help
+@@ -108,16 +117,15 @@ config INITRAMFS_COMPRESSION_GZIP
+ 	bool "Gzip"
+ 	depends on RD_GZIP
+ 	help
+-	  The old and tried gzip compression. Its compression ratio is
+-	  the poorest among the 3 choices; however its speed (both
+-	  compression and decompression) is the fastest.
+	  The old and tried gzip compression. It provides a good balance
+	  between compression ratio and decompression speed.
+ 
+ config INITRAMFS_COMPRESSION_BZIP2
+ 	bool "Bzip2"
+ 	depends on RD_BZIP2
+ 	help
+ 	  Its compression ratio and speed is intermediate.
+-	  Decompression speed is slowest among the three.  The initramfs
+	  Decompression speed is slowest among the four.  The initramfs
+ 	  size is about 10% smaller with bzip2, in comparison to gzip.
+ 	  Bzip2 uses a large amount of memory. For modern kernels you
+ 	  will need at least 8MB RAM or more for booting.
+@@ -128,7 +136,15 @@ config INITRAMFS_COMPRESSION_LZMA
+ 	help
+ 	  The most recent compression algorithm.
+ 	  Its ratio is best, decompression speed is between the other
+-	  two. Compression is slowest.	The initramfs size is about 33%
+	  three. Compression is slowest. The initramfs size is about 33%
+ 	  smaller with LZMA in comparison to gzip.
+ 
+config INITRAMFS_COMPRESSION_LZO
+	bool "LZO"
+	depends on RD_LZO
+	help
+	  Its compression ratio is the poorest among the four. The kernel
+	  size is about about 10% bigger than gzip; however its speed
+	  (both compression and decompression) is the fastest.
+
+ endchoice
--- a/target/linux/generic-2.6/patches-2.6.32/055-lzma_arm_kernel.patch
+++ b/target/linux/generic-2.6/patches-2.6.32/055-lzma_arm_kernel.patch
@ -0,0 +1,57 @@
+From d0f226a0f104c7d1da1d215b8013359273e39e18 Mon Sep 17 00:00:00 2001
+From: Albin Tonnerre <albin.tonnerre@free-electrons.com>
+Date: Fri, 16 Oct 2009 16:17:22 +0200
+Subject: [PATCH] Add LZMA decompression on ARM
+
+
+Signed-off-by: Albin Tonnerre <albin.tonnerre@free-electrons.com>
+---
+ arch/arm/Kconfig                      |    1 +
+ arch/arm/boot/compressed/Makefile     |    1 +
+ arch/arm/boot/compressed/misc.c       |    4 ++++
+ arch/arm/boot/compressed/piggy.lzma.S |    6 ++++++
+ 4 files changed, 12 insertions(+), 0 deletions(-)
+ create mode 100644 arch/arm/boot/compressed/piggy.lzma.S
+
+--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
+@@ -20,6 +20,7 @@ config ARM
+ 	select HAVE_GENERIC_DMA_COHERENT
+ 	select HAVE_KERNEL_GZIP
+ 	select HAVE_KERNEL_LZO
+	select HAVE_KERNEL_LZMA
+ 	help
+ 	  The ARM series is a line of low-power-consumption RISC chip designs
+ 	  licensed by ARM Ltd and targeted at embedded applications and
+--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
+@@ -65,6 +65,7 @@ SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/
+ 
+ suffix_$(CONFIG_KERNEL_GZIP) = gzip
+ suffix_$(CONFIG_KERNEL_LZO)  = lzo
+suffix_$(CONFIG_KERNEL_LZMA)  = lzma
+ 
+ targets       := vmlinux vmlinux.lds \
+ 		 piggy.$(suffix_y) piggy.$(suffix_y).o \
+--- a/arch/arm/boot/compressed/misc.c
+++ b/arch/arm/boot/compressed/misc.c
+@@ -237,6 +237,10 @@ static unsigned long free_mem_end_ptr;
+ #include "../../../../lib/decompress_inflate.c"
+ #endif
+ 
+#ifdef CONFIG_KERNEL_LZMA
+#include "../../../../lib/decompress_unlzma.c"
+#endif
+
+ #ifdef CONFIG_KERNEL_LZO
+ #include "../../../../lib/decompress_unlzo.c"
+ #endif
+--- /dev/null
+++ b/arch/arm/boot/compressed/piggy.lzma.S
+@@ -0,0 +1,6 @@
+	.section .piggydata,#alloc
+	.globl	input_data
+input_data:
+	.incbin	"arch/arm/boot/compressed/piggy.lzma"
+	.globl	input_data_end
+input_data_end:
--- a/target/linux/generic-2.6/patches-2.6.32/960-arm_lzma_loader.patch
+++ b/target/linux/generic-2.6/patches-2.6.32/960-arm_lzma_loader.patch
@ -1,710 +0,0 @@
--- a/arch/arm/boot/compressed/Makefile
-+++ b/arch/arm/boot/compressed/Makefile
-@@ -63,7 +63,7 @@ endif
- 
- SEDFLAGS	= s/TEXT_START/$(ZTEXTADDR)/;s/BSS_START/$(ZBSSADDR)/
- 
-targets       := vmlinux vmlinux.lds piggy.gz piggy.o font.o font.c \
-+targets       := vmlinux vmlinux.lds piggy.lzma piggy.o font.o font.c \
- 		 head.o misc.o $(OBJS)
- 
- ifeq ($(CONFIG_FUNCTION_TRACER),y)
-@@ -99,10 +99,10 @@ $(obj)/vmlinux: $(obj)/vmlinux.lds $(obj
- 	$(call if_changed,ld)
- 	@:
- 
-$(obj)/piggy.gz: $(obj)/../Image FORCE
-	$(call if_changed,gzip)
-+$(obj)/piggy.lzma: $(obj)/../Image FORCE
-+	$(call if_changed,lzma)
- 
-$(obj)/piggy.o:  $(obj)/piggy.gz FORCE
-+$(obj)/piggy.o:  $(obj)/piggy.lzma FORCE
- 
- CFLAGS_font.o := -Dstatic=
- 
--- a/arch/arm/boot/compressed/misc.c
-+++ b/arch/arm/boot/compressed/misc.c
-@@ -185,36 +185,10 @@ static inline __ptr_t memcpy(__ptr_t __d
- 	return __dest;
- }
- 
-/*
- * gzip delarations
- */
-#define OF(args)  args
-#define STATIC static
-
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
-
-#define WSIZE 0x8000		/* Window size must be at least 32k, */
-+#define WSIZE 0x20000		/* Window size must be at least 128k, */
- 				/* 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 */
-
-#define get_byte()  (inptr < insize ? inbuf[inptr++] : fill_inbuf())
-+static u8 window[WSIZE];	/* Sliding window buffer */
- 
- /* Diagnostic functions */
- #ifdef DEBUG
-@@ -233,24 +207,21 @@ static unsigned outcnt;		/* bytes in out
- #  define Tracecv(c,x)
- #endif
- 
-static int  fill_inbuf(void);
-static void flush_window(void);
- static void error(char *m);
- 
- extern char input_data[];
- extern char input_data_end[];
- 
-static uch *output_data;
-static ulg output_ptr;
-static ulg bytes_out;
-+static unsigned long output_ptr;
-+static unsigned long bytes_out;
- 
- static void error(char *m);
- 
- static void putstr(const char *);
- 
- extern int end;
-static ulg free_mem_ptr;
-static ulg free_mem_end_ptr;
-+static unsigned long free_mem_ptr;
-+static unsigned long free_mem_end_ptr;
- 
- #ifdef STANDALONE_DEBUG
- #define NO_INFLATE_MALLOC
-@@ -258,50 +229,10 @@ static ulg free_mem_end_ptr;
- 
- #define ARCH_HAS_DECOMP_WDOG
- 
-#include "../../../../lib/inflate.c"
-
-/* ===========================================================================
- * Fill the input buffer. This is called only when the buffer is empty
- * and at least one byte is really needed.
- */
-int fill_inbuf(void)
-{
-	if (insize != 0)
-		error("ran out of input data");
-
-	inbuf = input_data;
-	insize = &input_data_end[0] - &input_data[0];
-
-	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.)
- */
-void flush_window(void)
-{
-	ulg c = crc;
-	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;
-	putstr(".");
-}
-
- #ifndef arch_error
- #define arch_error(x)
- #endif
-+#include "unlzma.c"
- 
- static void error(char *x)
- {
-@@ -316,20 +247,16 @@ static void error(char *x)
- 
- #ifndef STANDALONE_DEBUG
- 
-ulg
-decompress_kernel(ulg output_start, ulg free_mem_ptr_p, ulg free_mem_ptr_end_p,
-+unsigned long
-+decompress_kernel(unsigned long output_start, unsigned long free_mem_ptr_p, unsigned long free_mem_ptr_end_p,
- 		  int arch_id)
- {
-	output_data		= (uch *)output_start;	/* Points to kernel start */
-	free_mem_ptr		= free_mem_ptr_p;
-	free_mem_end_ptr	= free_mem_ptr_end_p;
- 	__machine_arch_type	= arch_id;
- 
- 	arch_decomp_setup();
- 
-	makecrc();
- 	putstr("Uncompressing Linux...");
-	gunzip();
-+	output_ptr += unlzma((u8 *) output_start, input_data, window);
- 	putstr(" done, booting the kernel.\n");
- 	return output_ptr;
- }
-@@ -339,11 +266,8 @@ char output_buffer[1500*1024];
- 
- int main()
- {
-	output_data = output_buffer;
-
-	makecrc();
- 	putstr("Uncompressing Linux...");
-	gunzip();
-+	unlzma((u8 *) output_buffer, input_data, window);
- 	putstr("done.\n");
- 	return 0;
- }
--- a/arch/arm/boot/compressed/piggy.S
-+++ b/arch/arm/boot/compressed/piggy.S
-@@ -1,6 +1,6 @@
- 	.section .piggydata,#alloc
- 	.globl	input_data
- input_data:
-	.incbin	"arch/arm/boot/compressed/piggy.gz"
-+	.incbin	"arch/arm/boot/compressed/piggy.lzma"
- 	.globl	input_data_end
- input_data_end:
--- /dev/null
-+++ b/arch/arm/boot/compressed/unlzma.c
-@@ -0,0 +1,429 @@
-+/*
-+ * Copyright (c) 2009  Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * 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,
-+ * or (at your option) any later version.
-+ *
-+ * This program is distributed in the hope that it will be useful,
-+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
-+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-+ * GNU General Public License for more details.
-+ *
-+ * You should have received a copy of the GNU General Public License
-+ * along with this program; if not, write to the Free Software
-+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-+ *
-+ * uncompress.c
-+ */
-+
-+#include <linux/types.h>
-+#include <asm/byteorder.h>
-+#include "unlzma.h"
-+
-+struct unlzma_ctx {
-+	const u8 *next_in;
-+	u8 *next_out;
-+	u8 *outbuf;
-+
-+	/* reader state */
-+	u32 code;
-+	u32 range;
-+	u32 bound;
-+
-+	/* writer state */
-+	u8 previous_byte;
-+	ssize_t pos;
-+
-+	/* cstate */
-+	int state;
-+	u32 rep0, rep1, rep2, rep3;
-+
-+	void *workspace;
-+} ctx;
-+
-+static int inbs = 0;
-+static inline u8
-+rc_read(void)
-+{
-+#if 0
-+	if (unlikely(++inbs > 16 * 1024)) {
-+		putstr(".");
-+		inbs = 0;
-+	}
-+#endif
-+	return *(ctx.next_in++);
-+}
-+
-+
-+static inline void
-+rc_get_code(void)
-+{
-+	ctx.code = (ctx.code << 8) | rc_read();
-+}
-+
-+static inline void
-+rc_normalize(void)
-+{
-+	if (ctx.range < (1 << RC_TOP_BITS)) {
-+		ctx.range <<= 8;
-+		rc_get_code();
-+	}
-+}
-+
-+static inline int
-+rc_is_bit_0(u16 *p)
-+{
-+	rc_normalize();
-+	ctx.bound = *p * (ctx.range >> RC_MODEL_TOTAL_BITS);
-+	return ctx.code < ctx.bound;
-+}
-+
-+static inline void
-+rc_update_bit_0(u16 *p)
-+{
-+	ctx.range = ctx.bound;
-+	*p += ((1 << RC_MODEL_TOTAL_BITS) - *p) >> RC_MOVE_BITS;
-+}
-+
-+static inline void
-+rc_update_bit_1(u16 *p)
-+{
-+	ctx.range -= ctx.bound;
-+	ctx.code -= ctx.bound;
-+	*p -= *p >> RC_MOVE_BITS;
-+}
-+
-+static inline bool
-+rc_get_bit(u16 *p, int *symbol)
-+{
-+	if (rc_is_bit_0(p)) {
-+		rc_update_bit_0(p);
-+		*symbol *= 2;
-+		return 0;
-+	} else {
-+		rc_update_bit_1(p);
-+		*symbol = *symbol * 2 + 1;
-+		return 1;
-+	}
-+}
-+
-+static inline int
-+rc_direct_bit(void)
-+{
-+	rc_normalize();
-+	ctx.range >>= 1;
-+	if (ctx.code >= ctx.range) {
-+		ctx.code -= ctx.range;
-+		return 1;
-+	}
-+	return 0;
-+}
-+
-+static inline void
-+rc_bit_tree_decode(u16 *p, int num_levels, int *symbol)
-+{
-+	int i = num_levels;
-+
-+	*symbol = 1;
-+	while (i--)
-+		rc_get_bit(p + *symbol, symbol);
-+	*symbol -= 1 << num_levels;
-+}
-+
-+static inline u8
-+peek_old_byte(u32 offs)
-+{
-+	u32 pos = ctx.pos - offs;
-+	return ctx.outbuf[pos];
-+}
-+
-+static inline void
-+write_byte(u8 byte)
-+{
-+	ctx.previous_byte = byte;
-+	*(ctx.next_out++) = byte;
-+	ctx.pos++;
-+}
-+
-+
-+static inline void
-+copy_byte(u32 offs)
-+{
-+	write_byte(peek_old_byte(offs));
-+}
-+
-+static inline void
-+copy_bytes(u32 rep0, int len)
-+{
-+	do {
-+		copy_byte(rep0);
-+		len--;
-+	} while (len != 0);
-+}
-+
-+static inline void
-+process_bit0(u16 *p, int pos_state, u16 *prob,
-+             int lc, u32 literal_pos_mask)
-+{
-+	int mi = 1;
-+	rc_update_bit_0(prob);
-+	prob = (p + LZMA_LITERAL +
-+		(LZMA_LIT_SIZE
-+		 * (((ctx.pos & literal_pos_mask) << lc)
-+		    + (ctx.previous_byte >> (8 - lc))))
-+		);
-+
-+	if (ctx.state >= LZMA_NUM_LIT_STATES) {
-+		int match_byte = peek_old_byte(ctx.rep0);
-+		do {
-+			u16 bit;
-+			u16 *prob_lit;
-+
-+			match_byte <<= 1;
-+			bit = match_byte & 0x100;
-+			prob_lit = prob + 0x100 + bit + mi;
-+			if (rc_get_bit(prob_lit, &mi) != !!bit)
-+				break;
-+		} while (mi < 0x100);
-+	}
-+	while (mi < 0x100) {
-+		u16 *prob_lit = prob + mi;
-+		rc_get_bit(prob_lit, &mi);
-+	}
-+	write_byte(mi);
-+	if (ctx.state < 4)
-+		ctx.state = 0;
-+	else if (ctx.state < 10)
-+		ctx.state -= 3;
-+	else
-+		ctx.state -= 6;
-+}
-+
-+static inline void
-+process_bit1(u16 *p, int pos_state, u16 *prob)
-+{
-+	int offset;
-+	u16 *prob_len;
-+	int num_bits;
-+	int len;
-+
-+	rc_update_bit_1(prob);
-+	prob = p + LZMA_IS_REP + ctx.state;
-+	if (rc_is_bit_0(prob)) {
-+		rc_update_bit_0(prob);
-+		ctx.rep3 = ctx.rep2;
-+		ctx.rep2 = ctx.rep1;
-+		ctx.rep1 = ctx.rep0;
-+		ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 0 : 3;
-+		prob = p + LZMA_LEN_CODER;
-+	} else {
-+		rc_update_bit_1(prob);
-+		prob = p + LZMA_IS_REP_G0 + ctx.state;
-+		if (rc_is_bit_0(prob)) {
-+			rc_update_bit_0(prob);
-+			prob = (p + LZMA_IS_REP_0_LONG
-+				+ (ctx.state <<
-+				   LZMA_NUM_POS_BITS_MAX) +
-+				pos_state);
-+			if (rc_is_bit_0(prob)) {
-+				rc_update_bit_0(prob);
-+
-+				ctx.state = ctx.state < LZMA_NUM_LIT_STATES ?
-+					9 : 11;
-+				copy_byte(ctx.rep0);
-+				return;
-+			} else {
-+				rc_update_bit_1(prob);
-+			}
-+		} else {
-+			u32 distance;
-+
-+			rc_update_bit_1(prob);
-+			prob = p + LZMA_IS_REP_G1 + ctx.state;
-+			if (rc_is_bit_0(prob)) {
-+				rc_update_bit_0(prob);
-+				distance = ctx.rep1;
-+			} else {
-+				rc_update_bit_1(prob);
-+				prob = p + LZMA_IS_REP_G2 + ctx.state;
-+				if (rc_is_bit_0(prob)) {
-+					rc_update_bit_0(prob);
-+					distance = ctx.rep2;
-+				} else {
-+					rc_update_bit_1(prob);
-+					distance = ctx.rep3;
-+					ctx.rep3 = ctx.rep2;
-+				}
-+				ctx.rep2 = ctx.rep1;
-+			}
-+			ctx.rep1 = ctx.rep0;
-+			ctx.rep0 = distance;
-+		}
-+		ctx.state = ctx.state < LZMA_NUM_LIT_STATES ? 8 : 11;
-+		prob = p + LZMA_REP_LEN_CODER;
-+	}
-+
-+	prob_len = prob + LZMA_LEN_CHOICE;
-+	if (rc_is_bit_0(prob_len)) {
-+		rc_update_bit_0(prob_len);
-+		prob_len = (prob + LZMA_LEN_LOW
-+			    + (pos_state <<
-+			       LZMA_LEN_NUM_LOW_BITS));
-+		offset = 0;
-+		num_bits = LZMA_LEN_NUM_LOW_BITS;
-+	} else {
-+		rc_update_bit_1(prob_len);
-+		prob_len = prob + LZMA_LEN_CHOICE_2;
-+		if (rc_is_bit_0(prob_len)) {
-+			rc_update_bit_0(prob_len);
-+			prob_len = (prob + LZMA_LEN_MID
-+				    + (pos_state <<
-+				       LZMA_LEN_NUM_MID_BITS));
-+			offset = 1 << LZMA_LEN_NUM_LOW_BITS;
-+			num_bits = LZMA_LEN_NUM_MID_BITS;
-+		} else {
-+			rc_update_bit_1(prob_len);
-+			prob_len = prob + LZMA_LEN_HIGH;
-+			offset = ((1 << LZMA_LEN_NUM_LOW_BITS)
-+				  + (1 << LZMA_LEN_NUM_MID_BITS));
-+			num_bits = LZMA_LEN_NUM_HIGH_BITS;
-+		}
-+	}
-+
-+	rc_bit_tree_decode(prob_len, num_bits, &len);
-+	len += offset;
-+
-+	if (ctx.state < 4) {
-+		int pos_slot;
-+
-+		ctx.state += LZMA_NUM_LIT_STATES;
-+		prob =
-+			p + LZMA_POS_SLOT +
-+			((len <
-+			  LZMA_NUM_LEN_TO_POS_STATES ? len :
-+			  LZMA_NUM_LEN_TO_POS_STATES - 1)
-+			 << LZMA_NUM_POS_SLOT_BITS);
-+		rc_bit_tree_decode(prob,
-+				   LZMA_NUM_POS_SLOT_BITS,
-+				   &pos_slot);
-+		if (pos_slot >= LZMA_START_POS_MODEL_INDEX) {
-+			int i, mi;
-+			num_bits = (pos_slot >> 1) - 1;
-+			ctx.rep0 = 2 | (pos_slot & 1);
-+			if (pos_slot < LZMA_END_POS_MODEL_INDEX) {
-+				ctx.rep0 <<= num_bits;
-+				prob = p + LZMA_SPEC_POS +
-+					ctx.rep0 - pos_slot - 1;
-+			} else {
-+				num_bits -= LZMA_NUM_ALIGN_BITS;
-+				while (num_bits--)
-+					ctx.rep0 = (ctx.rep0 << 1) |
-+						rc_direct_bit();
-+				prob = p + LZMA_ALIGN;
-+				ctx.rep0 <<= LZMA_NUM_ALIGN_BITS;
-+				num_bits = LZMA_NUM_ALIGN_BITS;
-+			}
-+			i = 1;
-+			mi = 1;
-+			while (num_bits--) {
-+				if (rc_get_bit(prob + mi, &mi))
-+					ctx.rep0 |= i;
-+				i <<= 1;
-+			}
-+		} else
-+			ctx.rep0 = pos_slot;
-+		if (++(ctx.rep0) == 0)
-+			return;
-+	}
-+
-+	len += LZMA_MATCH_MIN_LEN;
-+
-+	copy_bytes(ctx.rep0, len);
-+}
-+
-+
-+static int
-+do_unlzma(void)
-+{
-+	u8 hdr_buf[sizeof(struct lzma_header)];
-+	struct lzma_header *header = (struct lzma_header *)hdr_buf;
-+	u32 pos_state_mask;
-+	u32 literal_pos_mask;
-+	int lc, pb, lp;
-+	int num_probs;
-+	int i, mi;
-+	u16 *p;
-+
-+	for (i = 0; i < sizeof(struct lzma_header); i++) {
-+		hdr_buf[i] = rc_read();
-+	}
-+
-+	ctx.pos = 0;
-+	ctx.state = 0;
-+	ctx.rep0 = ctx.rep1 = ctx.rep2 = ctx.rep3 = 1;
-+
-+	ctx.previous_byte = 0;
-+	ctx.code = 0;
-+	ctx.range = 0xFFFFFFFF;
-+
-+	if (header->pos >= (9 * 5 * 5))
-+		return -1;
-+
-+	mi = 0;
-+	lc = header->pos;
-+	while (lc >= 9) {
-+		mi++;
-+		lc -= 9;
-+	}
-+	pb = 0;
-+	lp = mi;
-+	while (lp >= 5) {
-+		pb++;
-+		lp -= 5;
-+	}
-+	pos_state_mask = (1 << pb) - 1;
-+	literal_pos_mask = (1 << lp) - 1;
-+
-+	p = (u16 *) ctx.workspace;
-+	if (!p)
-+		return -1;
-+
-+	num_probs = LZMA_LITERAL + (LZMA_LIT_SIZE << (lc + lp));
-+	for (i = 0; i < num_probs; i++)
-+		p[i] = (1 << RC_MODEL_TOTAL_BITS) >> 1;
-+
-+	for (i = 0; i < 5; i++)
-+		rc_get_code();
-+
-+	while (1) {
-+		int pos_state =	ctx.pos & pos_state_mask;
-+		u16 *prob = p + LZMA_IS_MATCH +
-+			(ctx.state << LZMA_NUM_POS_BITS_MAX) + pos_state;
-+		if (rc_is_bit_0(prob))
-+			process_bit0(p, pos_state, prob,
-+				     lc, literal_pos_mask);
-+		else {
-+			process_bit1(p, pos_state, prob);
-+			if (ctx.rep0 == 0)
-+				break;
-+		}
-+	}
-+
-+	return ctx.pos;
-+}
-+
-+
-+static int unlzma(unsigned char *dest, const unsigned char *src, unsigned char *workspace)
-+{
-+	memset(&ctx, 0, sizeof(ctx));
-+	ctx.outbuf = dest;
-+	ctx.next_in = src;
-+	ctx.next_out = dest;
-+	ctx.workspace = workspace;
-+
-+	return do_unlzma();
-+}
-+
-+
--- /dev/null
-+++ b/arch/arm/boot/compressed/unlzma.h
-@@ -0,0 +1,81 @@
-+/* LZMA uncompresion module for pcomp
-+ * Copyright (C) 2009  Felix Fietkau <nbd@openwrt.org>
-+ *
-+ * Based on:
-+ *  Initial Linux kernel adaptation
-+ *  Copyright (C) 2006  Alain < alain@knaff.lu >
-+ *
-+ *  Based on small lzma deflate implementation/Small range coder
-+ *  implementation for lzma.
-+ *  Copyright (C) 2006  Aurelien Jacobs < aurel@gnuage.org >
-+ *
-+ *  Based on LzmaDecode.c from the LZMA SDK 4.22 (http://www.7-zip.org/)
-+ *  Copyright (C) 1999-2005  Igor Pavlov
-+ *
-+ * 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 __UNLZMA_H
-+#define __UNLZMA_H
-+
-+struct lzma_header {
-+	__u8 pos;
-+	__le32 dict_size;
-+	__le64 uncompr_size;
-+} __attribute__ ((packed));
-+
-+
-+#define RC_TOP_BITS 24
-+#define RC_MOVE_BITS 5
-+#define RC_MODEL_TOTAL_BITS 11
-+
-+#define LZMA_BASE_SIZE 1846
-+#define LZMA_LIT_SIZE 768
-+
-+#define LZMA_NUM_POS_BITS_MAX 4
-+
-+#define LZMA_LEN_NUM_LOW_BITS 3
-+#define LZMA_LEN_NUM_MID_BITS 3
-+#define LZMA_LEN_NUM_HIGH_BITS 8
-+
-+#define LZMA_LEN_CHOICE 0
-+#define LZMA_LEN_CHOICE_2 (LZMA_LEN_CHOICE + 1)
-+#define LZMA_LEN_LOW (LZMA_LEN_CHOICE_2 + 1)
-+#define LZMA_LEN_MID (LZMA_LEN_LOW \
-+		      + (1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_LOW_BITS)))
-+#define LZMA_LEN_HIGH (LZMA_LEN_MID \
-+		       +(1 << (LZMA_NUM_POS_BITS_MAX + LZMA_LEN_NUM_MID_BITS)))
-+#define LZMA_NUM_LEN_PROBS (LZMA_LEN_HIGH + (1 << LZMA_LEN_NUM_HIGH_BITS))
-+
-+#define LZMA_NUM_STATES 12
-+#define LZMA_NUM_LIT_STATES 7
-+
-+#define LZMA_START_POS_MODEL_INDEX 4
-+#define LZMA_END_POS_MODEL_INDEX 14
-+#define LZMA_NUM_FULL_DISTANCES (1 << (LZMA_END_POS_MODEL_INDEX >> 1))
-+
-+#define LZMA_NUM_POS_SLOT_BITS 6
-+#define LZMA_NUM_LEN_TO_POS_STATES 4
-+
-+#define LZMA_NUM_ALIGN_BITS 4
-+
-+#define LZMA_MATCH_MIN_LEN 2
-+
-+#define LZMA_IS_MATCH 0
-+#define LZMA_IS_REP (LZMA_IS_MATCH + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
-+#define LZMA_IS_REP_G0 (LZMA_IS_REP + LZMA_NUM_STATES)
-+#define LZMA_IS_REP_G1 (LZMA_IS_REP_G0 + LZMA_NUM_STATES)
-+#define LZMA_IS_REP_G2 (LZMA_IS_REP_G1 + LZMA_NUM_STATES)
-+#define LZMA_IS_REP_0_LONG (LZMA_IS_REP_G2 + LZMA_NUM_STATES)
-+#define LZMA_POS_SLOT (LZMA_IS_REP_0_LONG \
-+		       + (LZMA_NUM_STATES << LZMA_NUM_POS_BITS_MAX))
-+#define LZMA_SPEC_POS (LZMA_POS_SLOT \
-+		       +(LZMA_NUM_LEN_TO_POS_STATES << LZMA_NUM_POS_SLOT_BITS))
-+#define LZMA_ALIGN (LZMA_SPEC_POS \
-+		    + LZMA_NUM_FULL_DISTANCES - LZMA_END_POS_MODEL_INDEX)
-+#define LZMA_LEN_CODER (LZMA_ALIGN + (1 << LZMA_NUM_ALIGN_BITS))
-+#define LZMA_REP_LEN_CODER (LZMA_LEN_CODER + LZMA_NUM_LEN_PROBS)
-+#define LZMA_LITERAL (LZMA_REP_LEN_CODER + LZMA_NUM_LEN_PROBS)
-+
-+#endif