--- a/src/drv_vmmc_init.c
+++ b/src/drv_vmmc_init.c
@@ -784,7 +784,7 @@
       dwld.fwDwld.length = IoInit.pram_size;
 
      /* download firmware */
-      ret = ifx_mps_ioctl((IFX_void_t *) command, IFX_NULL, FIO_MPS_DOWNLOAD,
+      ret = ifx_mps_ioctl((IFX_void_t *) command, FIO_MPS_DOWNLOAD,
                           (IFX_uint32_t) &dwld.fwDwld);
    }
 
@@ -1594,7 +1594,7 @@
 #ifdef VMMC_DRIVER_UNLOAD_HOOK
    if (VDevices[0].nDevState & DS_GPIO_RESERVED)
    {
-      IFX_int32_t ret;
+      IFX_int32_t ret = 0;
       VMMC_DRIVER_UNLOAD_HOOK(ret);
       if (!VMMC_SUCCESS(ret))
       {
--- a/src/mps/drv_mps_vmmc_linux.c
+++ b/src/mps/drv_mps_vmmc_linux.c
@@ -110,7 +110,7 @@
 #ifndef __KERNEL__
 IFX_int32_t ifx_mps_open (struct inode *inode, struct file *file_p);
 IFX_int32_t ifx_mps_close (struct inode *inode, struct file *file_p);
-IFX_int32_t ifx_mps_ioctl (struct inode *inode, struct file *file_p,
+long ifx_mps_ioctl (struct file *file_p,
                            IFX_uint32_t nCmd, IFX_ulong_t arg);
 IFX_int32_t ifx_mps_read_mailbox (mps_devices type, mps_message * rw);
 IFX_int32_t ifx_mps_write_mailbox (mps_devices type, mps_message * rw);
@@ -171,7 +171,7 @@
 static struct file_operations ifx_mps_fops = {
  owner:THIS_MODULE,
  poll:ifx_mps_poll,
- ioctl:ifx_mps_ioctl,
+ unlocked_ioctl:ifx_mps_ioctl,
  open:ifx_mps_open,
  release:ifx_mps_close
 };
@@ -614,7 +614,7 @@
  * \return  -ENOIOCTLCMD Invalid command
  * \ingroup API
  */
-IFX_int32_t ifx_mps_ioctl (struct inode * inode, struct file * file_p,
+long ifx_mps_ioctl (struct file *file_p,
                            IFX_uint32_t nCmd, IFX_ulong_t arg)
 {
    IFX_int32_t retvalue = -EINVAL;
@@ -629,17 +629,18 @@
       'mps_devices' enum type, which in fact is [0..8]; So, if inode value is
       [0..NUM_VOICE_CHANNEL+1], then we make sure that we are calling from
       kernel space. */
-   if (((IFX_int32_t) inode >= 0) &&
-       ((IFX_int32_t) inode < NUM_VOICE_CHANNEL + 1))
+   if (((IFX_int32_t) file_p >= 0) &&
+       ((IFX_int32_t) file_p < NUM_VOICE_CHANNEL + 1))
    {
       from_kernel = 1;
 
       /* Get corresponding mailbox device structure */
       if ((pMBDev =
-           ifx_mps_get_device ((mps_devices) ((IFX_int32_t) inode))) == 0)
+           ifx_mps_get_device ((mps_devices) ((IFX_int32_t) file_p))) == 0)
       {
          return (-EINVAL);
       }
+      file_p = NULL;
    }
    else
    {
--- a/src/drv_vmmc_ioctl.c
+++ b/src/drv_vmmc_ioctl.c
@@ -427,18 +427,18 @@
          /* MPS driver will do the USR2KERN so just pass on the pointer. */
          dwnld_struct.data = (IFX_void_t *)IoInit.pPRAMfw;
 
-         ret = ifx_mps_ioctl((IFX_void_t *)command, IFX_NULL,
+         ret = ifx_mps_ioctl((IFX_void_t *)command,
                              FIO_MPS_DOWNLOAD, (IFX_uint32_t) &dwnld_struct);
          break;
       }
       case FIO_DEV_RESET:
       {
-         ret = ifx_mps_ioctl((IFX_void_t *)command, IFX_NULL, FIO_MPS_RESET, 0);
+         ret = ifx_mps_ioctl((IFX_void_t *)command, FIO_MPS_RESET, 0);
          break;
       }
       case FIO_DEV_RESTART:
       {
-         ret = ifx_mps_ioctl((IFX_void_t *)command, IFX_NULL, FIO_MPS_RESTART, 0);
+         ret = ifx_mps_ioctl((IFX_void_t *)command, FIO_MPS_RESTART, 0);
          break;
       }
       case FIO_LASTERR:
--- a/src/mps/drv_mps_vmmc.h
+++ b/src/mps/drv_mps_vmmc.h
@@ -279,7 +279,7 @@
 #include <linux/fs.h>
 IFX_int32_t ifx_mps_open (struct inode *inode, struct file *file_p);
 IFX_int32_t ifx_mps_close (struct inode *inode, struct file *filp);
-IFX_int32_t ifx_mps_ioctl (struct inode *inode, struct file *file_p,
+long ifx_mps_ioctl (struct file *filp,
                            IFX_uint32_t nCmd, unsigned long arg);
 IFX_int32_t ifx_mps_register_data_callback (mps_devices type, IFX_uint32_t dir,
                                             IFX_void_t (*callback) (mps_devices
--- a/src/drv_vmmc_linux.c
+++ b/src/drv_vmmc_linux.c
@@ -32,7 +32,11 @@
 #ifdef LINUX_2_6
 #include <linux/version.h>
 #ifndef UTS_RELEASE
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
+#include <linux/utsrelease.h>
+#else
 #include <generated/utsrelease.h>
+#endif
 #endif /* UTC_RELEASE */
 #undef CONFIG_DEVFS_FS
 #endif /* LINUX_2_6 */
--- a/src/mps/drv_mps_vmmc_common.c
+++ b/src/mps/drv_mps_vmmc_common.c
@@ -22,7 +22,11 @@
 #undef USE_PLAIN_VOICE_FIRMWARE
 #undef PRINT_ON_ERR_INTERRUPT
 #undef FAIL_ON_ERR_INTERRUPT
-#include <generated/autoconf.h>
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33))
+#include <linux/utsrelease.h>
+#else
+#include <generated/utsrelease.h>
+#endif
 #include <linux/interrupt.h>
 #include <linux/delay.h>
 
@@ -47,8 +51,19 @@
 #  define ifx_gptu_timer_free       lq_free_timer
 
 
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
 #  define bsp_mask_and_ack_irq      ltq_mask_and_ack_irq
 #else
+extern void ltq_mask_and_ack_irq(struct irq_data *d);
+static void inline bsp_mask_and_ack_irq(int x)
+{
+	struct irq_data d;
+	d.irq = x;
+	ltq_mask_and_ack_irq(&d);
+}
+#endif
+
+#else
 #  include <asm/ifx/ifx_regs.h>
 #  include <asm/ifx/ifx_gptu.h>
 #endif
@@ -107,7 +122,9 @@
 extern mps_mbx_dev *ifx_mps_get_device (mps_devices type);
 
 #ifdef LINUX_2_6
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
 extern IFX_void_t bsp_mask_and_ack_irq (IFX_uint32_t irq_nr);
+#endif
 
 #else /* */
 extern IFX_void_t mask_and_ack_danube_irq (IFX_uint32_t irq_nr);
--- a/src/mps/drv_mps_vmmc_danube.c
+++ b/src/mps/drv_mps_vmmc_danube.c
@@ -16,11 +16,16 @@
 /* ============================= */
 /* Includes                      */
 /* ============================= */
+#include "linux/version.h"
 #include "drv_config.h"
 
 #ifdef SYSTEM_DANUBE            /* defined in drv_mps_vmmc_config.h */
 
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,33)) 
+#include <linux/autoconf.h>
+#else
 #include <generated/autoconf.h>
+#endif
 
 /* lib_ifxos headers */
 #include "ifx_types.h"
@@ -39,6 +44,7 @@
 #  include <linux/dma-mapping.h>
 
 
+#define LQ_RCU_BASE_ADDR	(KSEG1 + LTQ_RCU_BASE_ADDR)
 # define LQ_RCU_RST		((u32 *)(LQ_RCU_BASE_ADDR + 0x0010))
 #define IFX_RCU_RST_REQ_CPU1             (1 << 3)
 #  define IFX_RCU_RST_REQ        LQ_RCU_RST