u-boot: add LZMA decompression support

SVN-Revision: 11248

2 files changed, 1147 insertions, 0 deletions

diff --git a/target/linux/avr32/image/u-boot/patches/001-add_lzma_decompression_support.patch b/target/linux/avr32/image/u-boot/patches/001-add_lzma_decompression_support.patch
new file mode 100644
index 0000000..a9b8582
--- /dev/null
+++ b/target/linux/avr32/image/u-boot/patches/001-add_lzma_decompression_support.patch
@@ -0,0 +1,1135 @@
+From d37394e9ca1b85407408719feb2468c5affefa4a Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg at openwrt.org>
+Date: Fri, 9 May 2008 17:26:14 +0200
+Subject: [PATCH] add LZMA decompression support
+
+---
+ common/cmd_bootm.c        |   18 ++
+ common/image.c            |    1 +
+ include/LzmaWrapper.h     |   36 +++
+ include/image.h           |    1 +
+ lib_generic/LzmaDecode.c  |  602 +++++++++++++++++++++++++++++++++++++++++++++
+ lib_generic/LzmaDecode.h  |  113 +++++++++
+ lib_generic/LzmaTypes.h   |   45 ++++
+ lib_generic/LzmaWrapper.c |  197 +++++++++++++++
+ lib_generic/Makefile      |    2 +
+ 9 files changed, 1015 insertions(+), 0 deletions(-)
+ create mode 100644 include/LzmaWrapper.h
+ create mode 100644 lib_generic/LzmaDecode.c
+ create mode 100644 lib_generic/LzmaDecode.h
+ create mode 100644 lib_generic/LzmaTypes.h
+ create mode 100644 lib_generic/LzmaWrapper.c
+
+diff --git a/common/cmd_bootm.c b/common/cmd_bootm.c
+index 0d67132..6071817 100644
+--- a/common/cmd_bootm.c
++++ b/common/cmd_bootm.c
+@@ -32,6 +32,7 @@
+ #include <malloc.h>
+ #include <zlib.h>
+ #include <bzlib.h>
++#include <LzmaWrapper.h>
+ #include <environment.h>
+ #include <lmb.h>
+ #include <asm/byteorder.h>
+@@ -237,6 +238,7 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+ 			puts("OK\n");
+ 		}
+ 		break;
++#ifndef CONFIG_NO_GZIP
+ 	case IH_COMP_GZIP:
+ 		printf ("   Uncompressing %s ... ", type_name);
+ 		if (gunzip ((void *)load_start, unc_len,
+@@ -249,6 +251,7 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+ 
+ 		load_end = load_start + os_len;
+ 		break;
++#endif
+ #ifdef CONFIG_BZIP2
+ 	case IH_COMP_BZIP2:
+ 		printf ("   Uncompressing %s ... ", type_name);
+@@ -270,6 +273,21 @@ int do_bootm (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
+ 		load_end = load_start + unc_len;
+ 		break;
+ #endif /* CONFIG_BZIP2 */
++#ifdef CONFIG_LZMA
++	case IH_COMP_LZMA:
++		printf ("   Uncompressing %s ... ", type_name);
++		int i = lzma_inflate ((unsigned char *)os_data, os_len,
++					(unsigned char *)load_start, &unc_len);
++		if (i != LZMA_RESULT_OK) {
++			printf ("LZMA: uncompress or overwrite error %d "
++				"- must RESET board to recover\n", i);
++			show_boot_progress (-6);
++			do_reset (cmdtp, flag, argc, argv);
++		}
++
++		load_end = load_start + unc_len;
++		break;
++#endif /* CONFIG_LZMA */
+ 	default:
+ 		if (iflag)
+ 			enable_interrupts();
+diff --git a/common/image.c b/common/image.c
+index 67e594d..9b42ae9 100644
+--- a/common/image.c
++++ b/common/image.c
+@@ -148,6 +148,7 @@ static table_entry_t uimage_comp[] = {
+ 	{	IH_COMP_NONE,	"none",		"uncompressed",		},
+ 	{	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
+ 	{	IH_COMP_GZIP,	"gzip",		"gzip compressed",	},
++	{	IH_COMP_LZMA,	"lzma",		"lzma compressed",	},
+ 	{	-1,		"",		"",			},
+ };
+ 
+diff --git a/include/LzmaWrapper.h b/include/LzmaWrapper.h
+new file mode 100644
+index 0000000..2f9a3ff
+--- /dev/null
++++ b/include/LzmaWrapper.h
+@@ -0,0 +1,36 @@
++/******************************************************************************
++**
++** FILE NAME    : LzmaWrapper.h
++** PROJECT      : bootloader
++** MODULES      : U-boot
++**
++** DATE         : 2 Nov 2006
++** AUTHOR       : Lin Mars
++** DESCRIPTION  : LZMA decoder support for U-boot 1.1.5
++** COPYRIGHT    :       Copyright (c) 2006
++**                      Infineon Technologies AG
++**                      Am Campeon 1-12, 85579 Neubiberg, Germany
++**
++**    This program is free software; you can redistribute it and/or modify
++**    it under the terms of the GNU General Public License as published by
++**    the Free Software Foundation; either version 2 of the License, or
++**    (at your option) any later version.
++**
++** HISTORY
++** $Date        $Author         $Comment
++** 2 Nov 2006   Lin Mars        init version which derived from LzmaTest.c from
++**                              LZMA v4.43 SDK
++*******************************************************************************/
++#ifndef  __LZMA_WRAPPER_H__
++#define  __LZMA_WRAPPER_H__
++
++#ifndef LZMA_RESULT_OK
++#define LZMA_RESULT_OK 0
++#endif
++#ifndef LZMA_RESULT_DATA_ERROR
++#define LZMA_RESULT_DATA_ERROR 1
++#endif
++
++extern int lzma_inflate(unsigned char *source, int s_len, unsigned char *dest, int *d_len);
++
++#endif /*__LZMA_WRAPPER_H__*/
+diff --git a/include/image.h b/include/image.h
+index 664e51e..6de51c4 100644
+--- a/include/image.h
++++ b/include/image.h
+@@ -164,6 +164,7 @@
+ #define IH_COMP_NONE		0	/*  No	 Compression Used	*/
+ #define IH_COMP_GZIP		1	/* gzip	 Compression Used	*/
+ #define IH_COMP_BZIP2		2	/* bzip2 Compression Used	*/
++#define IH_COMP_LZMA		3	/* lzma  Compression used	*/
+ 
+ #define IH_MAGIC	0x27051956	/* Image Magic Number		*/
+ #define IH_NMLEN		32	/* Image Name Length		*/
+diff --git a/lib_generic/LzmaDecode.c b/lib_generic/LzmaDecode.c
+new file mode 100644
+index 0000000..d876e8b
+--- /dev/null
++++ b/lib_generic/LzmaDecode.c
+@@ -0,0 +1,602 @@
++/*
++  LzmaDecode.c
++  LZMA Decoder (optimized for Speed version)
++  
++  LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
++  http://www.7-zip.org/
++
++  LZMA SDK is licensed under two licenses:
++  1) GNU Lesser General Public License (GNU LGPL)
++  2) Common Public License (CPL)
++  It means that you can select one of these two licenses and 
++  follow rules of that license.
++
++  SPECIAL EXCEPTION:
++  Igor Pavlov, as the author of this Code, expressly permits you to 
++  statically or dynamically link your Code (or bind by name) to the 
++  interfaces of this file without subjecting your linked Code to the 
++  terms of the CPL or GNU LGPL. Any modifications or additions 
++  to this file, however, are subject to the LGPL or CPL terms.
++*/
++
++#include <config.h>
++
++#ifdef CONFIG_LZMA
++
++#include "LzmaDecode.h"
++
++#define kNumTopBits 24
++#define kTopValue ((UInt32)1 << kNumTopBits)
++
++#define kNumBitModelTotalBits 11
++#define kBitModelTotal (1 << kNumBitModelTotalBits)
++#define kNumMoveBits 5
++
++#define RC_READ_BYTE (*Buffer++)
++
++#define RC_INIT2 Code = 0; Range = 0xFFFFFFFF; \
++  { int i; for(i = 0; i < 5; i++) { RC_TEST; Code = (Code << 8) | RC_READ_BYTE; }}
++
++#ifdef _LZMA_IN_CB
++
++#define RC_TEST { if (Buffer == BufferLim) \
++  { SizeT size; int result = InCallback->Read(InCallback, &Buffer, &size); if (result != LZMA_RESULT_OK) { printf("ERROR, %s, %d\n", __FILE__, __LINE__); return result; } \
++  BufferLim = Buffer + size; if (size == 0) { printf("ERROR, %s, %d\n", __FILE__, __LINE__); return LZMA_RESULT_DATA_ERROR; } }}
++
++#define RC_INIT Buffer = BufferLim = 0; RC_INIT2
++
++#else
++
++#define RC_TEST { if (Buffer == BufferLim) { printf("ERROR, %s, %d\n", __FILE__, __LINE__); return LZMA_RESULT_DATA_ERROR; } }
++
++#define RC_INIT(buffer, bufferSize) Buffer = buffer; BufferLim = buffer + bufferSize; RC_INIT2
++ 
++#endif
++
++#define RC_NORMALIZE if (Range < kTopValue) { RC_TEST; Range <<= 8; Code = (Code << 8) | RC_READ_BYTE; }
++
++#define IfBit0(p) RC_NORMALIZE; bound = (Range >> kNumBitModelTotalBits) * *(p); if (Code < bound)
++#define UpdateBit0(p) Range = bound; *(p) += (kBitModelTotal - *(p)) >> kNumMoveBits;
++#define UpdateBit1(p) Range -= bound; Code -= bound; *(p) -= (*(p)) >> kNumMoveBits;
++
++#define RC_GET_BIT2(p, mi, A0, A1) IfBit0(p) \
++  { UpdateBit0(p); mi <<= 1; A0; } else \
++  { UpdateBit1(p); mi = (mi + mi) + 1; A1; } 
++  
++#define RC_GET_BIT(p, mi) RC_GET_BIT2(p, mi, ; , ;)               
++
++#define RangeDecoderBitTreeDecode(probs, numLevels, res) \
++  { int i = numLevels; res = 1; \
++  do { CProb *p = probs + res; RC_GET_BIT(p, res) } while(--i != 0); \
++  res -= (1 << numLevels); }
++
++
++#define kNumPosBitsMax 4
++#define kNumPosStatesMax (1 << kNumPosBitsMax)
++
++#define kLenNumLowBits 3
++#define kLenNumLowSymbols (1 << kLenNumLowBits)
++#define kLenNumMidBits 3
++#define kLenNumMidSymbols (1 << kLenNumMidBits)
++#define kLenNumHighBits 8
++#define kLenNumHighSymbols (1 << kLenNumHighBits)
++
++#define LenChoice 0
++#define LenChoice2 (LenChoice + 1)
++#define LenLow (LenChoice2 + 1)
++#define LenMid (LenLow + (kNumPosStatesMax << kLenNumLowBits))
++#define LenHigh (LenMid + (kNumPosStatesMax << kLenNumMidBits))
++#define kNumLenProbs (LenHigh + kLenNumHighSymbols) 
++
++
++#define kNumStates 12
++#define kNumLitStates 7
++
++#define kStartPosModelIndex 4
++#define kEndPosModelIndex 14
++#define kNumFullDistances (1 << (kEndPosModelIndex >> 1))
++
++#define kNumPosSlotBits 6
++#define kNumLenToPosStates 4
++
++#define kNumAlignBits 4
++#define kAlignTableSize (1 << kNumAlignBits)
++
++#define kMatchMinLen 2
++
++#define IsMatch 0
++#define IsRep (IsMatch + (kNumStates << kNumPosBitsMax))
++#define IsRepG0 (IsRep + kNumStates)
++#define IsRepG1 (IsRepG0 + kNumStates)
++#define IsRepG2 (IsRepG1 + kNumStates)
++#define IsRep0Long (IsRepG2 + kNumStates)
++#define PosSlot (IsRep0Long + (kNumStates << kNumPosBitsMax))
++#define SpecPos (PosSlot + (kNumLenToPosStates << kNumPosSlotBits))
++#define Align (SpecPos + kNumFullDistances - kEndPosModelIndex)
++#define LenCoder (Align + kAlignTableSize)
++#define RepLenCoder (LenCoder + kNumLenProbs)
++#define Literal (RepLenCoder + kNumLenProbs)
++
++#if Literal != LZMA_BASE_SIZE
++StopCompilingDueBUG
++#endif
++
++int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size)
++{
++  unsigned char prop0;
++  if (size < LZMA_PROPERTIES_SIZE)
++  {
++    printf("ERROR: %s, %d\n", __FILE__, __LINE__);
++    return LZMA_RESULT_DATA_ERROR;
++  }
++  prop0 = propsData[0];
++  if (prop0 >= (9 * 5 * 5))
++  {
++    printf("ERROR: %s, %d\n", __FILE__, __LINE__);
++    return LZMA_RESULT_DATA_ERROR;
++  }
++  {
++    for (propsRes->pb = 0; prop0 >= (9 * 5); propsRes->pb++, prop0 -= (9 * 5));
++    for (propsRes->lp = 0; prop0 >= 9; propsRes->lp++, prop0 -= 9);
++    propsRes->lc = prop0;
++    /*
++    unsigned char remainder = (unsigned char)(prop0 / 9);
++    propsRes->lc = prop0 % 9;
++    propsRes->pb = remainder / 5;
++    propsRes->lp = remainder % 5;
++    */
++  }
++
++  #ifdef _LZMA_OUT_READ
++  {
++    int i;
++    propsRes->DictionarySize = 0;
++    for (i = 0; i < 4; i++)
++      propsRes->DictionarySize += (UInt32)(propsData[1 + i]) << (i * 8);
++    if (propsRes->DictionarySize == 0)
++      propsRes->DictionarySize = 1;
++  }
++  #endif
++  return LZMA_RESULT_OK;
++}
++
++#define kLzmaStreamWasFinishedId (-1)
++
++int LzmaDecode(CLzmaDecoderState *vs,
++    #ifdef _LZMA_IN_CB
++    ILzmaInCallback *InCallback,
++    #else
++    const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
++    #endif
++    unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed)
++{
++  CProb *p = vs->Probs;
++  SizeT nowPos = 0;
++  Byte previousByte = 0;
++  UInt32 posStateMask = (1 << (vs->Properties.pb)) - 1;
++  UInt32 literalPosMask = (1 << (vs->Properties.lp)) - 1;
++  int lc = vs->Properties.lc;
++
++  #ifdef _LZMA_OUT_READ
++  
++  UInt32 Range = vs->Range;
++  UInt32 Code = vs->Code;
++  #ifdef _LZMA_IN_CB
++  const Byte *Buffer = vs->Buffer;
++  const Byte *BufferLim = vs->BufferLim;
++  #else
++  const Byte *Buffer = inStream;
++  const Byte *BufferLim = inStream + inSize;
++  #endif
++  int state = vs->State;
++  UInt32 rep0 = vs->Reps[0], rep1 = vs->Reps[1], rep2 = vs->Reps[2], rep3 = vs->Reps[3];
++  int len = vs->RemainLen;
++  UInt32 globalPos = vs->GlobalPos;
++  UInt32 distanceLimit = vs->DistanceLimit;
++
++  Byte *dictionary = vs->Dictionary;
++  UInt32 dictionarySize = vs->Properties.DictionarySize;
++  UInt32 dictionaryPos = vs->DictionaryPos;
++
++  Byte tempDictionary[4];
++
++  #ifndef _LZMA_IN_CB
++  *inSizeProcessed = 0;
++  #endif
++  *outSizeProcessed = 0;
++  if (len == kLzmaStreamWasFinishedId)
++    return LZMA_RESULT_OK;
++
++  if (dictionarySize == 0)
++  {
++    dictionary = tempDictionary;
++    dictionarySize = 1;
++    tempDictionary[0] = vs->TempDictionary[0];
++  }
++
++  if (len == kLzmaNeedInitId)
++  {
++    {
++      UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
++      UInt32 i;
++      for (i = 0; i < numProbs; i++)
++        p[i] = kBitModelTotal >> 1; 
++      rep0 = rep1 = rep2 = rep3 = 1;
++      state = 0;
++      globalPos = 0;
++      distanceLimit = 0;
++      dictionaryPos = 0;
++      dictionary[dictionarySize - 1] = 0;
++      #ifdef _LZMA_IN_CB
++      RC_INIT;
++      #else
++      RC_INIT(inStream, inSize);
++      #endif
++    }
++    len = 0;
++  }
++  while(len != 0 && nowPos < outSize)
++  {
++    UInt32 pos = dictionaryPos - rep0;
++    if (pos >= dictionarySize)
++      pos += dictionarySize;
++    outStream[nowPos++] = dictionary[dictionaryPos] = dictionary[pos];
++    if (++dictionaryPos == dictionarySize)
++      dictionaryPos = 0;
++    len--;
++  }
++  if (dictionaryPos == 0)
++    previousByte = dictionary[dictionarySize - 1];
++  else
++    previousByte = dictionary[dictionaryPos - 1];
++
++  #else /* if !_LZMA_OUT_READ */
++
++  int state = 0;
++  UInt32 rep0 = 1, rep1 = 1, rep2 = 1, rep3 = 1;
++  int len = 0;
++  const Byte *Buffer;
++  const Byte *BufferLim;
++  UInt32 Range;
++  UInt32 Code;
++
++  #ifndef _LZMA_IN_CB
++  *inSizeProcessed = 0;
++  #endif
++  *outSizeProcessed = 0;
++
++  {
++    UInt32 i;
++    UInt32 numProbs = Literal + ((UInt32)LZMA_LIT_SIZE << (lc + vs->Properties.lp));
++    for (i = 0; i < numProbs; i++)
++      p[i] = kBitModelTotal >> 1;
++  }
++  
++  #ifdef _LZMA_IN_CB
++  RC_INIT;
++  #else
++  RC_INIT(inStream, inSize);
++  #endif
++
++  #endif /* _LZMA_OUT_READ */
++
++  while(nowPos < outSize)
++  {
++    CProb *prob;
++    UInt32 bound;
++    int posState = (int)(
++        (nowPos 
++        #ifdef _LZMA_OUT_READ
++        + globalPos
++        #endif
++        )
++        & posStateMask);
++
++    prob = p + IsMatch + (state << kNumPosBitsMax) + posState;
++    IfBit0(prob)
++    {
++      int symbol = 1;
++      UpdateBit0(prob)
++      prob = p + Literal + (LZMA_LIT_SIZE * 
++        (((
++        (nowPos 
++        #ifdef _LZMA_OUT_READ
++        + globalPos
++        #endif
++        )
++        & literalPosMask) << lc) + (previousByte >> (8 - lc))));
++
++      if (state >= kNumLitStates)
++      {
++        int matchByte;
++        #ifdef _LZMA_OUT_READ
++        UInt32 pos = dictionaryPos - rep0;
++        if (pos >= dictionarySize)
++          pos += dictionarySize;
++        matchByte = dictionary[pos];
++        #else
++        matchByte = outStream[nowPos - rep0];
++        #endif
++        do
++        {
++          int bit;
++          CProb *probLit;
++          matchByte <<= 1;
++          bit = (matchByte & 0x100);
++          probLit = prob + 0x100 + bit + symbol;
++          RC_GET_BIT2(probLit, symbol, if (bit != 0) break, if (bit == 0) break)
++        }
++        while (symbol < 0x100);
++      }
++      while (symbol < 0x100)
++      {
++        CProb *probLit = prob + symbol;
++        RC_GET_BIT(probLit, symbol)
++      }
++      previousByte = (Byte)symbol;
++
++      outStream[nowPos++] = previousByte;
++      #ifdef _LZMA_OUT_READ
++      if (distanceLimit < dictionarySize)
++        distanceLimit++;
++
++      dictionary[dictionaryPos] = previousByte;
++      if (++dictionaryPos == dictionarySize)
++        dictionaryPos = 0;
++      #endif
++      if (state < 4) state = 0;
++      else if (state < 10) state -= 3;
++      else state -= 6;
++    }
++    else             
++    {
++      UpdateBit1(prob);
++      prob = p + IsRep + state;
++      IfBit0(prob)
++      {
++        UpdateBit0(prob);
++        rep3 = rep2;
++        rep2 = rep1;
++        rep1 = rep0;
++        state = state < kNumLitStates ? 0 : 3;
++        prob = p + LenCoder;
++      }
++      else
++      {
++        UpdateBit1(prob);
++        prob = p + IsRepG0 + state;
++        IfBit0(prob)
++        {
++          UpdateBit0(prob);
++          prob = p + IsRep0Long + (state << kNumPosBitsMax) + posState;
++          IfBit0(prob)
++          {
++            #ifdef _LZMA_OUT_READ
++            UInt32 pos;
++            #endif
++            UpdateBit0(prob);
++            
++            #ifdef _LZMA_OUT_READ
++            if (distanceLimit == 0)
++            #else
++            if (nowPos == 0)
++            #endif
++            {
++              printf("ERROR: %s, %d\n", __FILE__, __LINE__);
++              return LZMA_RESULT_DATA_ERROR;
++            }
++            
++            state = state < kNumLitStates ? 9 : 11;
++            #ifdef _LZMA_OUT_READ
++            pos = dictionaryPos - rep0;
++            if (pos >= dictionarySize)
++              pos += dictionarySize;
++            previousByte = dictionary[pos];
++            dictionary[dictionaryPos] = previousByte;
++            if (++dictionaryPos == dictionarySize)
++              dictionaryPos = 0;
++            #else
++            previousByte = outStream[nowPos - rep0];
++            #endif
++            outStream[nowPos++] = previousByte;
++            #ifdef _LZMA_OUT_READ
++            if (distanceLimit < dictionarySize)
++              distanceLimit++;
++            #endif
++
++            continue;
++          }
++          else
++          {
++            UpdateBit1(prob);
++          }
++        }
++        else
++        {
++          UInt32 distance;
++          UpdateBit1(prob);
++          prob = p + IsRepG1 + state;
++          IfBit0(prob)
++          {
++            UpdateBit0(prob);
++            distance = rep1;
++          }
++          else 
++          {
++            UpdateBit1(prob);
++            prob = p + IsRepG2 + state;
++            IfBit0(prob)
++            {
++              UpdateBit0(prob);
++              distance = rep2;
++            }
++            else
++            {
++              UpdateBit1(prob);
++              distance = rep3;
++              rep3 = rep2;
++            }
++            rep2 = rep1;
++          }
++          rep1 = rep0;
++          rep0 = distance;
++        }
++        state = state < kNumLitStates ? 8 : 11;
++        prob = p + RepLenCoder;
++      }
++      {
++        int numBits, offset;
++        CProb *probLen = prob + LenChoice;
++        IfBit0(probLen)
++        {
++          UpdateBit0(probLen);
++          probLen = prob + LenLow + (posState << kLenNumLowBits);
++          offset = 0;
++          numBits = kLenNumLowBits;
++        }
++        else
++        {
++          UpdateBit1(probLen);
++          probLen = prob + LenChoice2;
++          IfBit0(probLen)
++          {
++            UpdateBit0(probLen);
++            probLen = prob + LenMid + (posState << kLenNumMidBits);
++            offset = kLenNumLowSymbols;
++            numBits = kLenNumMidBits;
++          }
++          else
++          {
++            UpdateBit1(probLen);
++            probLen = prob + LenHigh;
++            offset = kLenNumLowSymbols + kLenNumMidSymbols;
++            numBits = kLenNumHighBits;
++          }
++        }
++        RangeDecoderBitTreeDecode(probLen, numBits, len);
++        len += offset;
++      }
++
++      if (state < 4)
++      {
++        int posSlot;
++        state += kNumLitStates;
++        prob = p + PosSlot +
++            ((len < kNumLenToPosStates ? len : kNumLenToPosStates - 1) << 
++            kNumPosSlotBits);
++        RangeDecoderBitTreeDecode(prob, kNumPosSlotBits, posSlot);
++        if (posSlot >= kStartPosModelIndex)
++        {
++          int numDirectBits = ((posSlot >> 1) - 1);
++          rep0 = (2 | ((UInt32)posSlot & 1));
++          if (posSlot < kEndPosModelIndex)
++          {
++            rep0 <<= numDirectBits;
++            prob = p + SpecPos + rep0 - posSlot - 1;
++          }
++          else
++          {
++            numDirectBits -= kNumAlignBits;
++            do
++            {
++              RC_NORMALIZE
++              Range >>= 1;
++              rep0 <<= 1;
++              if (Code >= Range)
++              {
++                Code -= Range;
++                rep0 |= 1;
++              }
++            }
++            while (--numDirectBits != 0);
++            prob = p + Align;
++            rep0 <<= kNumAlignBits;
++            numDirectBits = kNumAlignBits;
++          }
++          {
++            int i = 1;
++            int mi = 1;
++            do
++            {
++              CProb *prob3 = prob + mi;
++              RC_GET_BIT2(prob3, mi, ; , rep0 |= i);
++              i <<= 1;
++            }
++            while(--numDirectBits != 0);
++          }
++        }
++        else
++          rep0 = posSlot;
++        if (++rep0 == (UInt32)(0))
++        {
++          /* it's for stream version */
++          len = kLzmaStreamWasFinishedId;
++          break;
++        }
++      }
++
++      len += kMatchMinLen;
++      #ifdef _LZMA_OUT_READ
++      if (rep0 > distanceLimit) 
++      #else
++      if (rep0 > nowPos)
++      #endif
++      {
++        printf("ERROR: %s, %d\n", __FILE__, __LINE__);
++        return LZMA_RESULT_DATA_ERROR;
++      }
++
++      #ifdef _LZMA_OUT_READ
++      if (dictionarySize - distanceLimit > (UInt32)len)
++        distanceLimit += len;
++      else
++        distanceLimit = dictionarySize;
++      #endif
++
++      do
++      {
++        #ifdef _LZMA_OUT_READ
++        UInt32 pos = dictionaryPos - rep0;
++        if (pos >= dictionarySize)
++          pos += dictionarySize;
++        previousByte = dictionary[pos];
++        dictionary[dictionaryPos] = previousByte;
++        if (++dictionaryPos == dictionarySize)
++          dictionaryPos = 0;
++        #else
++        previousByte = outStream[nowPos - rep0];
++        #endif
++        len--;
++        outStream[nowPos++] = previousByte;
++      }
++      while(len != 0 && nowPos < outSize);
++    }
++  }
++  RC_NORMALIZE;
++
++  #ifdef _LZMA_OUT_READ
++  vs->Range = Range;
++  vs->Code = Code;
++  vs->DictionaryPos = dictionaryPos;
++  vs->GlobalPos = globalPos + (UInt32)nowPos;
++  vs->DistanceLimit = distanceLimit;
++  vs->Reps[0] = rep0;
++  vs->Reps[1] = rep1;
++  vs->Reps[2] = rep2;
++  vs->Reps[3] = rep3;
++  vs->State = state;
++  vs->RemainLen = len;
++  vs->TempDictionary[0] = tempDictionary[0];
++  #endif
++
++  #ifdef _LZMA_IN_CB
++  vs->Buffer = Buffer;
++  vs->BufferLim = BufferLim;
++  #else
++  *inSizeProcessed = (SizeT)(Buffer - inStream);
++  #endif
++  *outSizeProcessed = nowPos;
++  return LZMA_RESULT_OK;
++}
++
++#endif /* CONFIG_LZMA */
+diff --git a/lib_generic/LzmaDecode.h b/lib_generic/LzmaDecode.h
+new file mode 100644
+index 0000000..2870eeb
+--- /dev/null
++++ b/lib_generic/LzmaDecode.h
+@@ -0,0 +1,113 @@
++/* 
++  LzmaDecode.h
++  LZMA Decoder interface
++
++  LZMA SDK 4.40 Copyright (c) 1999-2006 Igor Pavlov (2006-05-01)
++  http://www.7-zip.org/
++
++  LZMA SDK is licensed under two licenses:
++  1) GNU Lesser General Public License (GNU LGPL)
++  2) Common Public License (CPL)
++  It means that you can select one of these two licenses and 
++  follow rules of that license.
++
++  SPECIAL EXCEPTION:
++  Igor Pavlov, as the author of this code, expressly permits you to 
++  statically or dynamically link your code (or bind by name) to the 
++  interfaces of this file without subjecting your linked code to the 
++  terms of the CPL or GNU LGPL. Any modifications or additions 
++  to this file, however, are subject to the LGPL or CPL terms.
++*/
++
++#ifndef __LZMADECODE_H
++#define __LZMADECODE_H
++
++#include "LzmaTypes.h"
++
++/* #define _LZMA_IN_CB */
++/* Use callback for input data */
++
++/* #define _LZMA_OUT_READ */
++/* Use read function for output data */
++
++/* #define _LZMA_PROB32 */
++/* It can increase speed on some 32-bit CPUs, 
++   but memory usage will be doubled in that case */
++
++/* #define _LZMA_LOC_OPT */
++/* Enable local speed optimizations inside code */
++
++#ifdef _LZMA_PROB32
++#define CProb UInt32
++#else
++#define CProb UInt16
++#endif
++
++#define LZMA_RESULT_OK 0
++#define LZMA_RESULT_DATA_ERROR 1
++
++#ifdef _LZMA_IN_CB
++typedef struct _ILzmaInCallback
++{
++  int (*Read)(void *object, const unsigned char **buffer, SizeT *bufferSize);
++} ILzmaInCallback;
++#endif
++
++#define LZMA_BASE_SIZE 1846
++#define LZMA_LIT_SIZE 768
++
++#define LZMA_PROPERTIES_SIZE 5
++
++typedef struct _CLzmaProperties
++{
++  int lc;
++  int lp;
++  int pb;
++  #ifdef _LZMA_OUT_READ
++  UInt32 DictionarySize;
++  #endif
++}CLzmaProperties;
++
++int LzmaDecodeProperties(CLzmaProperties *propsRes, const unsigned char *propsData, int size);
++
++#define LzmaGetNumProbs(Properties) (LZMA_BASE_SIZE + (LZMA_LIT_SIZE << ((Properties)->lc + (Properties)->lp)))
++
++#define kLzmaNeedInitId (-2)
++
++typedef struct _CLzmaDecoderState
++{
++  CLzmaProperties Properties;
++  CProb *Probs;
++
++  #ifdef _LZMA_IN_CB
++  const unsigned char *Buffer;
++  const unsigned char *BufferLim;
++  #endif
++
++  #ifdef _LZMA_OUT_READ
++  unsigned char *Dictionary;
++  UInt32 Range;
++  UInt32 Code;
++  UInt32 DictionaryPos;
++  UInt32 GlobalPos;
++  UInt32 DistanceLimit;
++  UInt32 Reps[4];
++  int State;
++  int RemainLen;
++  unsigned char TempDictionary[4];
++  #endif
++} CLzmaDecoderState;
++
++#ifdef _LZMA_OUT_READ
++#define LzmaDecoderInit(vs) { (vs)->RemainLen = kLzmaNeedInitId; }
++#endif
++
++int LzmaDecode(CLzmaDecoderState *vs,
++    #ifdef _LZMA_IN_CB
++    ILzmaInCallback *inCallback,
++    #else
++    const unsigned char *inStream, SizeT inSize, SizeT *inSizeProcessed,
++    #endif
++    unsigned char *outStream, SizeT outSize, SizeT *outSizeProcessed);
++
++#endif
+diff --git a/lib_generic/LzmaTypes.h b/lib_generic/LzmaTypes.h
+new file mode 100644
+index 0000000..288c5e4
+--- /dev/null
++++ b/lib_generic/LzmaTypes.h
+@@ -0,0 +1,45 @@
++/* 
++LzmaTypes.h 
++
++Types for LZMA Decoder
++
++This file written and distributed to public domain by Igor Pavlov.
++This file is part of LZMA SDK 4.40 (2006-05-01)
++*/
++
++#ifndef __LZMATYPES_H
++#define __LZMATYPES_H
++
++#ifndef _7ZIP_BYTE_DEFINED
++#define _7ZIP_BYTE_DEFINED
++typedef unsigned char Byte;
++#endif 
++
++#ifndef _7ZIP_UINT16_DEFINED
++#define _7ZIP_UINT16_DEFINED
++typedef unsigned short UInt16;
++#endif 
++
++#ifndef _7ZIP_UINT32_DEFINED
++#define _7ZIP_UINT32_DEFINED
++#ifdef _LZMA_UINT32_IS_ULONG
++typedef unsigned long UInt32;
++#else
++typedef unsigned int UInt32;
++#endif
++#endif 
++
++/* #define _LZMA_SYSTEM_SIZE_T */
++/* Use system's size_t. You can use it to enable 64-bit sizes supporting */
++
++#ifndef _7ZIP_SIZET_DEFINED
++#define _7ZIP_SIZET_DEFINED
++#ifdef _LZMA_SYSTEM_SIZE_T
++#include <stddef.h>
++typedef size_t SizeT;
++#else
++typedef UInt32 SizeT;
++#endif
++#endif
++
++#endif
+diff --git a/lib_generic/LzmaWrapper.c b/lib_generic/LzmaWrapper.c
+new file mode 100644
+index 0000000..6c3d702
+--- /dev/null
++++ b/lib_generic/LzmaWrapper.c
+@@ -0,0 +1,197 @@
++/******************************************************************************
++**
++** FILE NAME    : LzmaWrapper.c
++** PROJECT      : bootloader
++** MODULES      : U-boot
++**
++** DATE         : 2 Nov 2006
++** AUTHOR       : Lin Mars
++** DESCRIPTION  : LZMA decoder support for U-boot 1.1.5
++** COPYRIGHT    :       Copyright (c) 2006
++**                      Infineon Technologies AG
++**                      Am Campeon 1-12, 85579 Neubiberg, Germany
++**
++**    This program is free software; you can redistribute it and/or modify
++**    it under the terms of the GNU General Public License as published by
++**    the Free Software Foundation; either version 2 of the License, or
++**    (at your option) any later version.
++**
++** HISTORY
++** $Date        $Author         $Comment
++** 2 Nov 2006   Lin Mars        init version which derived from LzmaTest.c from
++**                              LZMA v4.43 SDK
++*******************************************************************************/
++#define LZMA_NO_STDIO
++#ifndef LZMA_NO_STDIO
++#include <stdio.h>
++#include <stdlib.h>
++#include <string.h>
++#endif
++
++#include <config.h>
++#include <common.h>
++#include <linux/types.h>
++#include <linux/string.h>
++#include <linux/ctype.h>
++#include <malloc.h>
++
++#ifdef CONFIG_LZMA
++
++#include "LzmaDecode.h"
++#include "LzmaWrapper.h"
++
++static const char *kCantReadMessage = "Can not read from source buffer";
++static const char *kCantAllocateMessage = "Not enough buffer for decompression";
++
++static size_t rpos=0, dpos=0;
++
++static int MyReadFileAndCheck(unsigned char *src, void *dest, size_t size)
++{
++  if (size == 0)
++    return 0;
++  memcpy(dest, src + rpos, size);
++  rpos += size;
++  return 1;
++}
++
++int lzma_inflate(unsigned char *source, int s_len, unsigned char *dest, int *d_len)
++{
++  /* We use two 32-bit integers to construct 64-bit integer for file size.
++     You can remove outSizeHigh, if you don't need >= 4GB supporting,
++     or you can use UInt64 outSize, if your compiler supports 64-bit integers*/
++  UInt32 outSize = 0;
++  UInt32 outSizeHigh = 0;
++  SizeT outSizeFull;
++  unsigned char *outStream;
++  
++  int waitEOS = 1; 
++  /* waitEOS = 1, if there is no uncompressed size in headers, 
++   so decoder will wait EOS (End of Stream Marker) in compressed stream */
++
++  SizeT compressedSize;
++  unsigned char *inStream;
++
++  CLzmaDecoderState state;  /* it's about 24-80 bytes structure, if int is 32-bit */
++  unsigned char properties[LZMA_PROPERTIES_SIZE];
++
++  int res;
++
++  if (sizeof(UInt32) < 4)
++  {
++    printf("LZMA decoder needs correct UInt32\n");
++    return LZMA_RESULT_DATA_ERROR;
++  }
++
++  {
++    long length=s_len;
++    if ((long)(SizeT)length != length)
++    {
++      printf("Too big compressed stream\n");
++      return LZMA_RESULT_DATA_ERROR;
++    }
++    compressedSize = (SizeT)(length - (LZMA_PROPERTIES_SIZE + 8));
++  }
++
++  /* Read LZMA properties for compressed stream */
++
++  if (!MyReadFileAndCheck(source, properties, sizeof(properties)))
++  {
++    printf("%s\n", kCantReadMessage);
++    return LZMA_RESULT_DATA_ERROR;
++  }
++
++  /* Read uncompressed size */
++  {
++    int i;
++    for (i = 0; i < 8; i++)
++    {
++      unsigned char b;
++      if (!MyReadFileAndCheck(source, &b, 1))
++      {
++        printf("%s\n", kCantReadMessage);
++        return LZMA_RESULT_DATA_ERROR;
++      }
++      if (b != 0xFF)
++        waitEOS = 0;
++      if (i < 4)
++        outSize += (UInt32)(b) << (i * 8);
++      else
++        outSizeHigh += (UInt32)(b) << ((i - 4) * 8);
++    }
++    
++    if (waitEOS)
++    {
++      printf("Stream with EOS marker is not supported");
++      return LZMA_RESULT_DATA_ERROR;
++    }
++    outSizeFull = (SizeT)outSize;
++    if (sizeof(SizeT) >= 8)
++      outSizeFull |= (((SizeT)outSizeHigh << 16) << 16);
++    else if (outSizeHigh != 0 || (UInt32)(SizeT)outSize != outSize)
++    {
++      printf("Too big uncompressed stream");
++      return LZMA_RESULT_DATA_ERROR;
++    }
++  }
++
++  /* Decode LZMA properties and allocate memory */
++  if (LzmaDecodeProperties(&state.Properties, properties, LZMA_PROPERTIES_SIZE) != LZMA_RESULT_OK)
++  {
++    printf("Incorrect stream properties");
++    return LZMA_RESULT_DATA_ERROR;
++  }
++  state.Probs = (CProb *)malloc(LzmaGetNumProbs(&state.Properties) * sizeof(CProb));
++
++  if (outSizeFull == 0)
++    outStream = 0;
++  else
++  {
++    if (outSizeFull > d_len)
++      outStream = 0;
++    else
++      outStream = dest;
++  }
++
++  if (compressedSize == 0)
++    inStream = 0;
++  else
++  {
++    if ((compressedSize+rpos) > s_len )
++      inStream = 0;
++    else
++      inStream = source + rpos;
++  }
++
++  if (state.Probs == 0 
++    || (outStream == 0 && outSizeFull != 0)
++    || (inStream == 0 && compressedSize != 0)
++    )
++  {
++    free(state.Probs);
++    printf("%s\n", kCantAllocateMessage);
++    return LZMA_RESULT_DATA_ERROR;
++  }
++
++  /* Decompress */
++  {
++    SizeT inProcessed;
++    SizeT outProcessed;
++    res = LzmaDecode(&state,
++      inStream, compressedSize, &inProcessed,
++      outStream, outSizeFull, &outProcessed);
++    if (res != 0)
++    {
++      printf("\nDecoding error = %d\n", res);
++      res = 1;
++    }
++    else
++    {
++      *d_len = outProcessed;
++    }
++  }
++
++  free(state.Probs);
++  return res;
++}
++
++#endif /* CONFIG_LZMA */
+diff --git a/lib_generic/Makefile b/lib_generic/Makefile
+index abee19a..449e994 100644
+--- a/lib_generic/Makefile
++++ b/lib_generic/Makefile
+@@ -41,6 +41,8 @@ COBJS-y += sha1.o
+ COBJS-y += string.o
+ COBJS-y += vsprintf.o
+ COBJS-y += zlib.o
++COBJS-y += LzmaDecode.o
++COBJS-y += LzmaWrapper.o
+ 
+ COBJS	:= $(COBJS-y)
+ SRCS 	:= $(COBJS:.o=.c)
+-- 
+1.5.3.2
+
diff --git a/target/linux/avr32/image/u-boot/patches/100-ngw100_enable_lzma_support.patch b/target/linux/avr32/image/u-boot/patches/100-ngw100_enable_lzma_support.patch
new file mode 100644
index 0000000..5ff91b8
--- /dev/null
+++ b/target/linux/avr32/image/u-boot/patches/100-ngw100_enable_lzma_support.patch
@@ -0,0 +1,12 @@
+Index: u-boot-1.3.3/include/configs/atngw100.h
+===================================================================
+--- u-boot-1.3.3.orig/include/configs/atngw100.h
++++ u-boot-1.3.3/include/configs/atngw100.h
+@@ -60,6 +60,7 @@
+ 
+ /* User serviceable stuff */
+ #define CONFIG_DOS_PARTITION		1
++#define CONFIG_LZMA			1
+ 
+ #define CONFIG_CMDLINE_TAG		1
+ #define CONFIG_SETUP_MEMORY_TAGS	1