diff -Naur ixp_osal.orig/Makefile ixp_osal/Makefile
--- ixp_osal.orig/Makefile	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/Makefile	2005-08-24 00:18:02.000000000 +0200
@@ -172,7 +172,7 @@
 
 # TODO push this to linux make
 ifeq ($(IX_OSAL_MK_HOST_OS), linux)
-INCLUDE_DIRS += $(LINUX_SRC)/include/asm-arm/arch-ixp425/
+INCLUDE_DIRS += $(LINUX_SRC)/include/asm-arm/arch-ixp4xx/
 endif
 
 CFLAGS += $(INCLUDE_DIRS:%=-I%)
diff -Naur ixp_osal.orig/include/linux-2.6.h ixp_osal/include/linux-2.6.h
--- ixp_osal.orig/include/linux-2.6.h	1970-01-01 01:00:00.000000000 +0100
+++ ixp_osal/include/linux-2.6.h	2005-08-26 15:20:23.000000000 +0200
@@ -0,0 +1,52 @@
+/* */
+
+#include "asm/page.h"
+
+#if !defined (IXP425_TIMER_BASE_PHYS)
+# define IXP425_TIMER_BASE_PHYS 	IXP4XX_TIMER_BASE_PHYS
+#endif
+#if !defined (IRQ_IXP425_XSCALE_PMU)
+# define IRQ_IXP425_XSCALE_PMU		IRQ_IXP4XX_XSCALE_PMU
+#endif
+#if !defined (IXP425_QMGR_BASE_PHYS)
+# define IXP425_QMGR_BASE_PHYS		IXP4XX_QMGR_BASE_PHYS
+#endif
+#if !defined (IXP425_PERIPHERAL_BASE_PHYS)
+# define IXP425_PERIPHERAL_BASE_PHYS	IXP4XX_PERIPHERAL_BASE_PHYS
+#endif
+#if !defined (IXP425_PERIPHERAL_BASE_VIRT)
+# define IXP425_PERIPHERAL_BASE_VIRT	IXP4XX_PERIPHERAL_BASE_VIRT
+#endif
+#if !defined (IXP425_EXP_CFG_BASE_PHYS)
+# define IXP425_EXP_CFG_BASE_PHYS	IXP4XX_EXP_CFG_BASE_PHYS
+#endif
+#if !defined (IXP425_EXP_CFG_BASE_VIRT)
+# define IXP425_EXP_CFG_BASE_VIRT	IXP4XX_EXP_CFG_BASE_VIRT
+#endif
+#if !defined (IXP425_PCI_CFG_BASE_PHYS)
+# define IXP425_PCI_CFG_BASE_PHYS	IXP4XX_PCI_CFG_BASE_PHYS
+#endif
+#if !defined (IXP425_PCI_CFG_BASE_VIRT)
+# define IXP425_PCI_CFG_BASE_VIRT	IXP4XX_PCI_CFG_BASE_VIRT
+#endif
+#if !defined (IXP425_EXP_BUS_BASE2_PHYS)
+# define IXP425_EXP_BUS_BASE2_PHYS	IXP4XX_EXP_BUS_CS2_BASE_PHYS
+#endif
+#if !defined (IXP425_EthA_BASE_PHYS)
+# define IXP425_EthA_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0x9000)
+#endif
+#if !defined (IXP425_EthB_BASE_PHYS)
+# define IXP425_EthB_BASE_PHYS		(IXP4XX_PERIPHERAL_BASE_PHYS + 0xA000)
+#endif
+#if !defined (IXP425_ICMR)
+# define IXP425_ICMR			IXP4XX_ICMR
+#endif
+#if !defined (IXP425_USB_BASE_PHYS)
+# define IXP425_USB_BASE_PHYS		IXP4XX_USB_BASE_PHYS
+#endif
+#if !defined (IXP425_INTC_BASE_PHYS)
+# define IXP425_INTC_BASE_PHYS		IXP4XX_INTC_BASE_PHYS
+#endif
+#if !defined (IRQ_IXP425_USB)
+# define IRQ_IXP425_USB			IRQ_IXP4XX_USB
+#endif
diff -Naur ixp_osal.orig/os/linux/include/core/IxOsalOs.h ixp_osal/os/linux/include/core/IxOsalOs.h
--- ixp_osal.orig/os/linux/include/core/IxOsalOs.h	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/include/core/IxOsalOs.h	2005-08-26 01:56:22.000000000 +0200
@@ -56,6 +56,7 @@
 #include <linux/cache.h>
 #include <linux/mm.h>
 #include <linux/config.h>
+#include <linux/version.h>
 #include <asm/pgalloc.h>
 
 /**
@@ -66,9 +67,23 @@
 
 #define IX_OSAL_OS_MMU_PHYS_TO_VIRT(addr)  ((addr) ? phys_to_virt((unsigned int)(addr)) : 0)
 
-#define IX_OSAL_OS_CACHE_INVALIDATE(addr, size)  ( invalidate_dcache_range((__u32)addr, (__u32)addr + size )) 
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+/*
+ * 2.6 kernels do not export the required cache functions.
+ */
+extern void ixOsalCacheInvalidateRange(unsigned long start, unsigned long size);
+extern void ixOsalCacheFlushRange(unsigned long start, unsigned long size);
+
+#define IX_OSAL_OS_CACHE_INVALIDATE(addr, size) \
+ixOsalCacheInvalidateRange((unsigned long)addr, (unsigned long)addr + size)
+#define IX_OSAL_OS_CACHE_FLUSH(addr, size) \
+ixOsalCacheFlushRange((unsigned long)addr, (unsigned long)addr + size )
 
+#else
+
+#define IX_OSAL_OS_CACHE_INVALIDATE(addr, size)  ( invalidate_dcache_range((__u32)addr, (__u32)addr + size )) 
 #define IX_OSAL_OS_CACHE_FLUSH(addr, size) ( clean_dcache_range((__u32)addr, (__u32)addr + size ))
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) */
 
 #define printf	printk /* For backword compatibility, needs to move to better location */
 
diff -Naur ixp_osal.orig/os/linux/include/platforms/ixp400/IxOsalOsIxp400.h ixp_osal/os/linux/include/platforms/ixp400/IxOsalOsIxp400.h
--- ixp_osal.orig/os/linux/include/platforms/ixp400/IxOsalOsIxp400.h	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/include/platforms/ixp400/IxOsalOsIxp400.h	2005-08-26 15:20:23.000000000 +0200
@@ -53,6 +53,8 @@
 #include "asm/hardware.h"
 #include "asm/arch/irqs.h"
 
+#include <linux-2.6.h>		/* Glue */
+
 /* physical addresses to be used when requesting memory with IX_OSAL_MEM_MAP */
 #define IX_OSAL_IXP400_INTC_PHYS_BASE          IXP425_INTC_BASE_PHYS
 #define IX_OSAL_IXP400_GPIO_PHYS_BASE          IXP425_GPIO_BASE_PHYS
@@ -108,7 +110,6 @@
 #define IX_OSAL_IXP400_NPEB_VIRT_BASE          IXP425_NPEB_BASE_VIRT
 #define IX_OSAL_IXP400_NPEC_VIRT_BASE          IXP425_NPEC_BASE_VIRT
 #define IX_OSAL_IXP400_PERIPHERAL_VIRT_BASE    IXP425_PERIPHERAL_BASE_VIRT
-#define IX_OSAL_IXP400_QMGR_VIRT_BASE          IXP425_QMGR_BASE_VIRT
 #define IX_OSAL_IXP400_OSTS_VIRT_BASE          IXP425_TIMER_BASE_VIRT
 #define IX_OSAL_IXP400_USB_VIRT_BASE           IXP425_USB_BASE_VIRT
 #define IX_OSAL_IXP400_EXP_CFG_VIRT_BASE       IXP425_EXP_CFG_BASE_VIRT
@@ -239,12 +240,21 @@
      * Queue Manager 
      */
     {
+#ifdef IXP425_QMGR_BASE_VIRT
      IX_OSAL_STATIC_MAP,	/* type            */
      IX_OSAL_IXP400_QMGR_PHYS_BASE,	/* physicalAddress */
      IX_OSAL_IXP400_QMGR_MAP_SIZE,	/* size            */
      IX_OSAL_IXP400_QMGR_VIRT_BASE,	/* virtualAddress  */
      NULL,			/* mapFunction     */
      NULL,			/* unmapFunction   */
+#else
+     IX_OSAL_DYNAMIC_MAP,                  /* type            */
+     IX_OSAL_IXP400_QMGR_PHYS_BASE,   /* physicalAddress */
+     IX_OSAL_IXP400_QMGR_MAP_SIZE,    /* size            */
+     0,                               /* virtualAddress  */
+     ixOsalLinuxMemMap,		/* mapFunction     */
+     ixOsalLinuxMemUnmap,	/* unmapFunction   */
+#endif
      0,				/* refCount        */
      IX_OSAL_BE | IX_OSAL_LE_DC,	/* endianType      */   
      "qMgr"			/* name            */
diff -Naur ixp_osal.orig/os/linux/make/macros.mk ixp_osal/os/linux/make/macros.mk
--- ixp_osal.orig/os/linux/make/macros.mk	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/make/macros.mk	2005-08-26 15:17:37.000000000 +0200
@@ -71,10 +71,12 @@
 ################################################################
 # Linux Compiler & linker commands
 
-ifeq ($(IX_OSAL_MK_TARGET_ENDIAN), linuxbe)
-LINUX_CROSS_COMPILE := $(HARDHAT_BASE)/devkit/arm/xscale_be/bin/xscale_be-
-else
-LINUX_CROSS_COMPILE := $(HARDHAT_BASE)/devkit/arm/xscale_le/bin/xscale_le-
+ifeq "$(LINUX_CROSS_COMPILE)" "" 
+ ifeq ($(IX_OSAL_MK_TARGET_ENDIAN), linuxbe)
+  LINUX_CROSS_COMPILE := $(HARDHAT_BASE)/devkit/arm/xscale_be/bin/xscale_be-
+ else
+  LINUX_CROSS_COMPILE := $(HARDHAT_BASE)/devkit/arm/xscale_le/bin/xscale_le-
+ endif
 endif
 
 LINUX_SRC := $($(IX_TARGET)_KERNEL_DIR)
@@ -91,9 +93,11 @@
 LINUX_MACH_CFLAGS := -D__LINUX_ARM_ARCH__=5 -mcpu=xscale -mtune=xscale
 
 CFLAGS := -D__KERNEL__ -I$(LINUX_SRC)/include -Wall -Wno-trigraphs -fno-common \
-          -pipe -mapcs-32 -mshort-load-bytes -msoft-float -DMODULE \
+          -pipe -mapcs-32 -msoft-float -DMODULE \
           -D__linux -DCPU=33 -DXSCALE=33 $(LINUX_MACH_CFLAGS) -DEXPORT_SYMTAB
 
+# -mshort-load-bytes removed by Marc Singer's patch TODO(hannes) why?
+
 # Linux linker flags
 LDFLAGS := -r
 
diff -Naur ixp_osal.orig/os/linux/src/core/IxOsalOsCacheMMU.c ixp_osal/os/linux/src/core/IxOsalOsCacheMMU.c
--- ixp_osal.orig/os/linux/src/core/IxOsalOsCacheMMU.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/core/IxOsalOsCacheMMU.c	2005-08-26 01:56:22.000000000 +0200
@@ -210,3 +210,59 @@
 	free_pages ((unsigned int) memptr, order);
     }
 }
+
+
+/*
+ * 2.6 kernels do not export the required cache functions.
+ */
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+
+#define _IX_STR(x) #x
+#define IX_STR(x) _IX_STR(x)
+#define IX_CLM IX_STR(IX_OSAL_CACHE_LINE_SIZE-1)
+
+/*
+ * reimplementation of kernel's invalidate_dcache_range()
+ */
+void
+ixOsalCacheInvalidateRange(unsigned long start, unsigned long size)
+{
+  __asm__
+    ("    tst    %0, #" IX_CLM "\n"
+     "    mcrne  p15, 0, %0, c7, c10, 1      @ clean D cache line\n"
+     "    bic    %0, %0, #" IX_CLM "\n"
+     "    tst    %1, #" IX_CLM "\n"
+     "    mcrne  p15, 0, %1, c7, c10, 1      @ clean D cache line\n"
+     "1:  mcr    p15, 0, %0, c7, c6, 1       @ invalidate D cache line\n"
+     "    add    %0, %0, #" IX_STR(IX_OSAL_CACHE_LINE_SIZE) "\n"
+     "    cmp    %0, %1\n"
+     "    blo    1b\n"
+     "    mcr    p15, 0, %0, c7, c10, 4      @ drain write & fill buffer\n"
+     : /* no output */
+     : "r"(start), "r"(size)
+     : "cc");
+}
+
+/*
+ * reimplementation of kernel's invalidate_dcache_range()
+ */
+void
+ixOsalCacheFlushRange(unsigned long start, unsigned long size)
+{
+  __asm__
+    ("    bic    %0, %0, #" IX_CLM "\n"
+     "1:  mcr    p15, 0, %0, c7, c10, 1      @ clean D cache line\n"
+     "    add    %0, %0, #" IX_STR(IX_OSAL_CACHE_LINE_SIZE) "\n"
+     "    cmp    %0, %1\n"
+     "    blo    1b\n"
+     "    mcr    p15, 0, %0, c7, c10, 4      @ drain write & fill buffer\n"
+     : /* no output */
+     : "r"(start), "r"(size)
+     : "cc");
+}
+
+#undef _IX_STR
+#undef IX_STR
+#undef IX_CLM
+
+#endif /* (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)) */
diff -Naur ixp_osal.orig/os/linux/src/core/IxOsalOsMsgQ.c ixp_osal/os/linux/src/core/IxOsalOsMsgQ.c
--- ixp_osal.orig/os/linux/src/core/IxOsalOsMsgQ.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/core/IxOsalOsMsgQ.c	2005-08-24 00:18:02.000000000 +0200
@@ -45,9 +45,9 @@
  * -- End Intel Copyright Notice --
  */
 #include <linux/linkage.h>
+#include <linux/spinlock.h>
 #include <linux/ipc.h>
 #include <linux/msg.h>
-#include <linux/spinlock.h>
 #include <linux/interrupt.h>
 
 #include "IxOsal.h"
diff -Naur ixp_osal.orig/os/linux/src/core/IxOsalOsSemaphore.c ixp_osal/os/linux/src/core/IxOsalOsSemaphore.c
--- ixp_osal.orig/os/linux/src/core/IxOsalOsSemaphore.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/core/IxOsalOsSemaphore.c	2005-08-26 15:58:16.000000000 +0200
@@ -46,7 +46,7 @@
  */
 
 #include <linux/slab.h>
-#include <asm-arm/hardirq.h>
+#include <linux/hardirq.h>
 #include "IxOsal.h"
 
 /* Define a large number */
@@ -93,7 +93,7 @@
 {
 
     IX_STATUS ixStatus = IX_SUCCESS;
-    UINT32 timeoutTime;
+    unsigned long timeoutTime;
 
     if (sid == NULL)
     {
diff -Naur ixp_osal.orig/os/linux/src/core/IxOsalOsServices.c ixp_osal/os/linux/src/core/IxOsalOsServices.c
--- ixp_osal.orig/os/linux/src/core/IxOsalOsServices.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/core/IxOsalOsServices.c	2005-08-26 15:53:22.000000000 +0200
@@ -53,6 +53,7 @@
 #include <linux/time.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
+#include <linux/interrupt.h>
 
 #include "IxOsal.h"
 
@@ -88,7 +89,7 @@
 /*
  * General interrupt handler
  */
-static void
+static irqreturn_t
 ixOsalOsIsrProxy (int irq, void *dev_id, struct pt_regs *regs)
 {
     IxOsalInfoType *isr_proxy_info = (IxOsalInfoType *) dev_id;
@@ -97,6 +98,7 @@
 		   "ixOsalOsIsrProxy: Interrupt used before ixOsalIrqBind was invoked");
 
     isr_proxy_info->routine (isr_proxy_info->parameter);
+    return IRQ_HANDLED;
 }
 
 /*
@@ -104,11 +106,12 @@
  * This handler saves the interrupted Program Counter (PC)
  * into a global variable
  */
-static void
+static irqreturn_t
 ixOsalOsIsrProxyWithPC (int irq, void *dev_id, struct pt_regs *regs)
 {
     ixOsalLinuxInterruptedPc = regs->ARM_pc;
     ixOsalOsIsrProxy(irq, dev_id, regs);
+    return IRQ_HANDLED;
 }
 
 /**************************************
@@ -190,10 +193,15 @@
 PUBLIC UINT32
 ixOsalIrqLock ()
 {
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+    unsigned long flags;
+    local_irq_save(flags);
+#else
     UINT32 flags;
     save_flags (flags);
     cli ();
-    return flags;
+#endif
+    return (UINT32)flags;
 }
 
 /* Enable interrupts and task scheduling,
@@ -203,7 +211,11 @@
 PUBLIC void
 ixOsalIrqUnlock (UINT32 lockKey)
 {
+# if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+    local_irq_restore((unsigned long)lockKey);
+# else
     restore_flags (lockKey);
+# endif
 }
 
 PUBLIC UINT32
@@ -315,10 +327,11 @@
 PUBLIC void
 ixOsalSleep (UINT32 milliseconds)
 {
-    if (milliseconds != 0)
+    signed long delay = milliseconds*HZ;
+    if ( delay >= 1000 )
     {
         current->state = TASK_INTERRUPTIBLE;
-        schedule_timeout ((milliseconds * HZ) / 1000);
+        schedule_timeout (delay / 1000);
     }
     else
     {
diff -Naur ixp_osal.orig/os/linux/src/core/IxOsalOsSymbols.c ixp_osal/os/linux/src/core/IxOsalOsSymbols.c
--- ixp_osal.orig/os/linux/src/core/IxOsalOsSymbols.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/core/IxOsalOsSymbols.c	2005-08-30 19:19:33.000000000 +0200
@@ -64,6 +64,10 @@
 
 EXPORT_SYMBOL (ixOsalCacheDmaMalloc);
 EXPORT_SYMBOL (ixOsalCacheDmaFree);
+#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0))
+EXPORT_SYMBOL (ixOsalCacheInvalidateRange);
+EXPORT_SYMBOL (ixOsalCacheFlushRange);
+#endif
 
 EXPORT_SYMBOL (ixOsalThreadCreate);
 EXPORT_SYMBOL (ixOsalThreadStart);
diff -Naur ixp_osal.orig/os/linux/src/core/IxOsalOsThread.c ixp_osal/os/linux/src/core/IxOsalOsThread.c
--- ixp_osal.orig/os/linux/src/core/IxOsalOsThread.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/core/IxOsalOsThread.c	2005-08-26 00:50:32.000000000 +0200
@@ -46,6 +46,7 @@
  */
 
 #include <linux/sched.h>
+#include <linux/version.h>
 
 #include "IxOsal.h"
 
@@ -65,11 +66,11 @@
     void *arg = IxOsalOsThreadData.arg;
     static int seq = 0;
 
-    daemonize ();
+    daemonize ("IxOsal %d", ++seq);
 
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0))
     exit_files (current);
-
-    snprintf(current->comm, sizeof(current->comm), "IxOsal %d", ++seq);
+#endif
 
     up (&IxOsalThreadMutex);
 
diff -Naur ixp_osal.orig/os/linux/src/modules/ioMem/IxOsalOsIoMem.c ixp_osal/os/linux/src/modules/ioMem/IxOsalOsIoMem.c
--- ixp_osal.orig/os/linux/src/modules/ioMem/IxOsalOsIoMem.c	2005-08-24 00:16:37.000000000 +0200
+++ ixp_osal/os/linux/src/modules/ioMem/IxOsalOsIoMem.c	2005-08-24 00:18:02.000000000 +0200
@@ -45,6 +45,7 @@
  * -- End Intel Copyright Notice --
  */
 
+#include <asm/page.h>
 #include <asm/io.h>
 #include <linux/ioport.h>