24 files changed, 278 insertions, 343 deletions

diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index 6fced1fe3bf0..3c91cf6192c6 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.33-rc6
-# Wed Feb  3 10:02:59 2010
+# Linux kernel version: 2.6.34-rc6
+# Thu May  6 11:22:14 2010
 #
 CONFIG_MICROBLAZE=y
 # CONFIG_SWAP is not set
@@ -22,8 +22,6 @@ CONFIG_GENERIC_CSUM=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_HAVE_LATENCYTOP_SUPPORT=y
-# CONFIG_PCI is not set
-CONFIG_NO_DMA=y
 CONFIG_DTC=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 CONFIG_CONSTRUCTORS=y
@@ -56,7 +54,6 @@ CONFIG_RCU_FANOUT=32
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=17
-# CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
 CONFIG_SYSFS_DEPRECATED=y
 CONFIG_SYSFS_DEPRECATED_V2=y
@@ -106,6 +103,8 @@ CONFIG_SLAB=y
 # CONFIG_SLOB is not set
 # CONFIG_PROFILING is not set
 CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DMA_API_DEBUG=y
 
 #
 # GCOV-based kernel profiling
@@ -245,13 +244,20 @@ CONFIG_BINFMT_ELF=y
 # CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
 # CONFIG_HAVE_AOUT is not set
 # CONFIG_BINFMT_MISC is not set
+
+#
+# Bus Options
+#
+# CONFIG_PCI is not set
+# CONFIG_PCI_DOMAINS is not set
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
 CONFIG_NET=y
 
 #
 # Networking options
 #
 CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
 CONFIG_UNIX=y
 CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
@@ -341,7 +347,9 @@ CONFIG_PREVENT_FIRMWARE_BUILD=y
 # CONFIG_SYS_HYPERVISOR is not set
 # CONFIG_CONNECTOR is not set
 # CONFIG_MTD is not set
+CONFIG_OF_FLATTREE=y
 CONFIG_OF_DEVICE=y
+CONFIG_OF_MDIO=y
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
 # CONFIG_BLK_DEV_COW_COMMON is not set
@@ -370,6 +378,7 @@ CONFIG_MISC_DEVICES=y
 #
 # SCSI device support
 #
+CONFIG_SCSI_MOD=y
 # CONFIG_RAID_ATTRS is not set
 # CONFIG_SCSI is not set
 # CONFIG_SCSI_DMA is not set
@@ -383,9 +392,30 @@ CONFIG_NETDEVICES=y
 # CONFIG_EQUALIZER is not set
 # CONFIG_TUN is not set
 # CONFIG_VETH is not set
-# CONFIG_PHYLIB is not set
+CONFIG_PHYLIB=y
+
+#
+# MII PHY device drivers
+#
+# CONFIG_MARVELL_PHY is not set
+# CONFIG_DAVICOM_PHY is not set
+# CONFIG_QSEMI_PHY is not set
+# CONFIG_LXT_PHY is not set
+# CONFIG_CICADA_PHY is not set
+# CONFIG_VITESSE_PHY is not set
+# CONFIG_SMSC_PHY is not set
+# CONFIG_BROADCOM_PHY is not set
+# CONFIG_ICPLUS_PHY is not set
+# CONFIG_REALTEK_PHY is not set
+# CONFIG_NATIONAL_PHY is not set
+# CONFIG_STE10XP is not set
+# CONFIG_LSI_ET1011C_PHY is not set
+# CONFIG_MICREL_PHY is not set
+# CONFIG_FIXED_PHY is not set
+# CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
 # CONFIG_MII is not set
+# CONFIG_ETHOC is not set
 # CONFIG_DNET is not set
 # CONFIG_IBM_NEW_EMAC_ZMII is not set
 # CONFIG_IBM_NEW_EMAC_RGMII is not set
@@ -394,6 +424,7 @@ CONFIG_NET_ETHERNET=y
 # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
 # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
 # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
+# CONFIG_B44 is not set
 # CONFIG_KS8842 is not set
 # CONFIG_KS8851_MLL is not set
 CONFIG_XILINX_EMACLITE=y
@@ -444,6 +475,7 @@ CONFIG_SERIAL_UARTLITE=y
 CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_TIMBERDALE is not set
 # CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
@@ -471,6 +503,12 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 # CONFIG_HWMON is not set
 # CONFIG_THERMAL is not set
 # CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
+
+#
+# Sonics Silicon Backplane
+#
+# CONFIG_SSB is not set
 
 #
 # Multifunction device drivers
@@ -502,6 +540,7 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_ACCESSIBILITY is not set
 # CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
 # CONFIG_AUXDISPLAY is not set
 # CONFIG_UIO is not set
 
@@ -572,6 +611,7 @@ CONFIG_MISC_FILESYSTEMS=y
 # CONFIG_BEFS_FS is not set
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
+# CONFIG_LOGFS is not set
 # CONFIG_CRAMFS is not set
 # CONFIG_SQUASHFS is not set
 # CONFIG_VXFS_FS is not set
@@ -595,6 +635,7 @@ CONFIG_SUNRPC=y
 # CONFIG_RPCSEC_GSS_KRB5 is not set
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
+# CONFIG_CEPH_FS is not set
 CONFIG_CIFS=y
 CONFIG_CIFS_STATS=y
 CONFIG_CIFS_STATS2=y
@@ -696,6 +737,7 @@ CONFIG_SCHED_DEBUG=y
 # CONFIG_DEBUG_OBJECTS is not set
 CONFIG_DEBUG_SLAB=y
 # CONFIG_DEBUG_SLAB_LEAK is not set
+# CONFIG_DEBUG_KMEMLEAK is not set
 CONFIG_DEBUG_SPINLOCK=y
 # CONFIG_DEBUG_MUTEXES is not set
 # CONFIG_DEBUG_LOCK_ALLOC is not set
@@ -741,6 +783,7 @@ CONFIG_BRANCH_PROFILE_NONE=y
 # CONFIG_KMEMTRACE is not set
 # CONFIG_WORKQUEUE_TRACER is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_DMA_API_DEBUG is not set
 # CONFIG_SAMPLES is not set
 CONFIG_EARLY_PRINTK=y
 # CONFIG_HEART_BEAT is not set
@@ -862,5 +905,6 @@ CONFIG_ZLIB_INFLATE=y
 CONFIG_DECOMPRESS_GZIP=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
 CONFIG_HAVE_LMB=y
 CONFIG_NLATTR=y
diff --git a/arch/microblaze/configs/nommu_defconfig b/arch/microblaze/configs/nommu_defconfig
index ce2da535246a..dd3a494257f4 100644
--- a/arch/microblaze/configs/nommu_defconfig
+++ b/arch/microblaze/configs/nommu_defconfig
@@ -1,7 +1,7 @@
 #
 # Automatically generated make config: don't edit
-# Linux kernel version: 2.6.33-rc6
-# Wed Feb  3 10:03:21 2010
+# Linux kernel version: 2.6.34-rc6
+# Thu May  6 11:25:12 2010
 #
 CONFIG_MICROBLAZE=y
 # CONFIG_SWAP is not set
@@ -22,8 +22,6 @@ CONFIG_GENERIC_CSUM=y
 CONFIG_STACKTRACE_SUPPORT=y
 CONFIG_LOCKDEP_SUPPORT=y
 CONFIG_HAVE_LATENCYTOP_SUPPORT=y
-# CONFIG_PCI is not set
-CONFIG_NO_DMA=y
 CONFIG_DTC=y
 CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
 CONFIG_CONSTRUCTORS=y
@@ -58,7 +56,6 @@ CONFIG_RCU_FANOUT=32
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=17
-# CONFIG_GROUP_SCHED is not set
 # CONFIG_CGROUPS is not set
 CONFIG_SYSFS_DEPRECATED=y
 CONFIG_SYSFS_DEPRECATED_V2=y
@@ -96,6 +93,8 @@ CONFIG_SLAB=y
 # CONFIG_MMAP_ALLOW_UNINITIALIZED is not set
 # CONFIG_PROFILING is not set
 CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DMA_API_DEBUG=y
 
 #
 # GCOV-based kernel profiling
@@ -209,11 +208,14 @@ CONFIG_PROC_DEVICETREE=y
 #
 # Advanced setup
 #
+# CONFIG_ADVANCED_OPTIONS is not set
 
 #
 # Default settings for advanced configuration options are used
 #
+CONFIG_LOWMEM_SIZE=0x30000000
 CONFIG_KERNEL_START=0x90000000
+CONFIG_TASK_SIZE=0x80000000
 CONFIG_SELECT_MEMORY_MODEL=y
 CONFIG_FLATMEM_MANUAL=y
 # CONFIG_DISCONTIGMEM_MANUAL is not set
@@ -235,13 +237,20 @@ CONFIG_BINFMT_FLAT=y
 # CONFIG_BINFMT_SHARED_FLAT is not set
 # CONFIG_HAVE_AOUT is not set
 # CONFIG_BINFMT_MISC is not set
+
+#
+# Bus Options
+#
+# CONFIG_PCI is not set
+# CONFIG_PCI_DOMAINS is not set
+# CONFIG_PCI_SYSCALL is not set
+# CONFIG_ARCH_SUPPORTS_MSI is not set
 CONFIG_NET=y
 
 #
 # Networking options
 #
 CONFIG_PACKET=y
-# CONFIG_PACKET_MMAP is not set
 CONFIG_UNIX=y
 CONFIG_XFRM=y
 # CONFIG_XFRM_USER is not set
@@ -413,6 +422,7 @@ CONFIG_MTD_UCLINUX=y
 # UBI - Unsorted block images
 #
 # CONFIG_MTD_UBI is not set
+CONFIG_OF_FLATTREE=y
 CONFIG_OF_DEVICE=y
 # CONFIG_PARPORT is not set
 CONFIG_BLK_DEV=y
@@ -442,6 +452,7 @@ CONFIG_MISC_DEVICES=y
 #
 # SCSI device support
 #
+CONFIG_SCSI_MOD=y
 # CONFIG_RAID_ATTRS is not set
 # CONFIG_SCSI is not set
 # CONFIG_SCSI_DMA is not set
@@ -458,6 +469,7 @@ CONFIG_NETDEVICES=y
 # CONFIG_PHYLIB is not set
 CONFIG_NET_ETHERNET=y
 # CONFIG_MII is not set
+# CONFIG_ETHOC is not set
 # CONFIG_DNET is not set
 # CONFIG_IBM_NEW_EMAC_ZMII is not set
 # CONFIG_IBM_NEW_EMAC_RGMII is not set
@@ -466,6 +478,7 @@ CONFIG_NET_ETHERNET=y
 # CONFIG_IBM_NEW_EMAC_NO_FLOW_CTRL is not set
 # CONFIG_IBM_NEW_EMAC_MAL_CLR_ICINTSTAT is not set
 # CONFIG_IBM_NEW_EMAC_MAL_COMMON_ERR is not set
+# CONFIG_B44 is not set
 # CONFIG_KS8842 is not set
 # CONFIG_KS8851_MLL is not set
 # CONFIG_XILINX_EMACLITE is not set
@@ -516,6 +529,7 @@ CONFIG_SERIAL_UARTLITE=y
 CONFIG_SERIAL_UARTLITE_CONSOLE=y
 CONFIG_SERIAL_CORE=y
 CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_TIMBERDALE is not set
 # CONFIG_SERIAL_GRLIB_GAISLER_APBUART is not set
 CONFIG_UNIX98_PTYS=y
 # CONFIG_DEVPTS_MULTIPLE_INSTANCES is not set
@@ -544,6 +558,12 @@ CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
 # CONFIG_HWMON is not set
 # CONFIG_THERMAL is not set
 # CONFIG_WATCHDOG is not set
+CONFIG_SSB_POSSIBLE=y
+
+#
+# Sonics Silicon Backplane
+#
+# CONFIG_SSB is not set
 
 #
 # Multifunction device drivers
@@ -593,6 +613,7 @@ CONFIG_USB_ARCH_HAS_EHCI=y
 # CONFIG_NEW_LEDS is not set
 # CONFIG_ACCESSIBILITY is not set
 # CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
 # CONFIG_AUXDISPLAY is not set
 # CONFIG_UIO is not set
 
@@ -661,6 +682,7 @@ CONFIG_MISC_FILESYSTEMS=y
 # CONFIG_BFS_FS is not set
 # CONFIG_EFS_FS is not set
 # CONFIG_JFFS2_FS is not set
+# CONFIG_LOGFS is not set
 CONFIG_CRAMFS=y
 # CONFIG_SQUASHFS is not set
 # CONFIG_VXFS_FS is not set
@@ -689,6 +711,7 @@ CONFIG_SUNRPC=y
 # CONFIG_RPCSEC_GSS_KRB5 is not set
 # CONFIG_RPCSEC_GSS_SPKM3 is not set
 # CONFIG_SMB_FS is not set
+# CONFIG_CEPH_FS is not set
 # CONFIG_CIFS is not set
 # CONFIG_NCP_FS is not set
 # CONFIG_CODA_FS is not set
@@ -733,6 +756,7 @@ CONFIG_DEBUG_OBJECTS_TIMERS=y
 # CONFIG_DEBUG_OBJECTS_WORK is not set
 CONFIG_DEBUG_OBJECTS_ENABLE_DEFAULT=1
 # CONFIG_DEBUG_SLAB is not set
+# CONFIG_DEBUG_KMEMLEAK is not set
 # CONFIG_DEBUG_RT_MUTEXES is not set
 # CONFIG_RT_MUTEX_TESTER is not set
 # CONFIG_DEBUG_SPINLOCK is not set
@@ -758,6 +782,7 @@ CONFIG_DEBUG_SG=y
 # CONFIG_BACKTRACE_SELF_TEST is not set
 # CONFIG_DEBUG_BLOCK_EXT_DEVT is not set
 # CONFIG_DEBUG_FORCE_WEAK_PER_CPU is not set
+# CONFIG_LKDTM is not set
 # CONFIG_FAULT_INJECTION is not set
 # CONFIG_LATENCYTOP is not set
 CONFIG_SYSCTL_SYSCALL_CHECK=y
@@ -782,6 +807,7 @@ CONFIG_BRANCH_PROFILE_NONE=y
 # CONFIG_WORKQUEUE_TRACER is not set
 # CONFIG_BLK_DEV_IO_TRACE is not set
 # CONFIG_DYNAMIC_DEBUG is not set
+# CONFIG_DMA_API_DEBUG is not set
 # CONFIG_SAMPLES is not set
 CONFIG_EARLY_PRINTK=y
 # CONFIG_HEART_BEAT is not set
@@ -901,5 +927,6 @@ CONFIG_GENERIC_FIND_LAST_BIT=y
 CONFIG_ZLIB_INFLATE=y
 CONFIG_HAS_IOMEM=y
 CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
 CONFIG_HAVE_LMB=y
 CONFIG_NLATTR=y
diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h
index e52210891d78..4efe96a036f7 100644
--- a/arch/microblaze/include/asm/cache.h
+++ b/arch/microblaze/include/asm/cache.h
@@ -15,7 +15,7 @@
 
 #include <asm/registers.h>
 
-#define L1_CACHE_SHIFT  2
+#define L1_CACHE_SHIFT 5
 /* word-granular cache in microblaze */
 #define L1_CACHE_BYTES  (1 << L1_CACHE_SHIFT)
 
diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h
index 08c073badf19..0d73d0c6de37 100644
--- a/arch/microblaze/include/asm/dma.h
+++ b/arch/microblaze/include/asm/dma.h
@@ -18,4 +18,10 @@
 #define MAX_DMA_ADDRESS (CONFIG_KERNEL_START + memory_size - 1)
 #endif
 
+#ifdef CONFIG_PCI
+extern int isa_dma_bridge_buggy;
+#else
+#define isa_dma_bridge_buggy     (0)
+#endif
+
 #endif /* _ASM_MICROBLAZE_DMA_H */
diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h
index 90731df9e574..4c7b5d037c88 100644
--- a/arch/microblaze/include/asm/exceptions.h
+++ b/arch/microblaze/include/asm/exceptions.h
@@ -64,12 +64,6 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
 void die(const char *str, struct pt_regs *fp, long err);
 void _exception(int signr, struct pt_regs *regs, int code, unsigned long addr);
 
-#ifdef CONFIG_MMU
-void __bug(const char *file, int line, void *data);
-int bad_trap(int trap_num, struct pt_regs *regs);
-int debug_trap(struct pt_regs *regs);
-#endif /* CONFIG_MMU */
-
 #if defined(CONFIG_KGDB)
 void (*debugger)(struct pt_regs *regs);
 int (*debugger_bpt)(struct pt_regs *regs);
diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h
index e45a6eea92e0..00b5398d08c7 100644
--- a/arch/microblaze/include/asm/io.h
+++ b/arch/microblaze/include/asm/io.h
@@ -139,8 +139,6 @@ static inline void writel(unsigned int v, volatile void __iomem *addr)
 
 #ifdef CONFIG_MMU
 
-#define mm_ptov(addr)           ((void *)__phys_to_virt(addr))
-#define mm_vtop(addr)           ((unsigned long)__virt_to_phys(addr))
 #define phys_to_virt(addr)      ((void *)__phys_to_virt(addr))
 #define virt_to_phys(addr)      ((unsigned long)__virt_to_phys(addr))
 #define virt_to_bus(addr)       ((unsigned long)__virt_to_phys(addr))
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index 2dd1d04129e0..de493f86d28f 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -31,6 +31,9 @@
 
 #ifndef __ASSEMBLY__
 
+/* MS be sure that SLAB allocates aligned objects */
+#define ARCH_KMALLOC_MINALIGN   L1_CACHE_BYTES
+
 #define PAGE_UP(addr)   (((addr)+((PAGE_SIZE)-1))&(~((PAGE_SIZE)-1)))
 #define PAGE_DOWN(addr) ((addr)&(~((PAGE_SIZE)-1)))
 
@@ -70,14 +73,7 @@ typedef unsigned long pte_basic_t;
 
 #endif /* CONFIG_MMU */
 
-#  ifndef CONFIG_MMU
-#  define copy_page(to, from)                   memcpy((to), (from), PAGE_SIZE)
-#  define get_user_page(vaddr)                  __get_free_page(GFP_KERNEL)
-#  define free_user_page(page, addr)            free_page(addr)
-#  else /* CONFIG_MMU */
-extern void copy_page(void *to, void *from);
-#  endif /* CONFIG_MMU */
-
+# define copy_page(to, from)                    memcpy((to), (from), PAGE_SIZE)
 # define clear_page(pgaddr)                     memset((pgaddr), 0, PAGE_SIZE)
 
 # define clear_user_page(pgaddr, vaddr, page)   memset((pgaddr), 0, PAGE_SIZE)
diff --git a/arch/microblaze/include/asm/pci.h b/arch/microblaze/include/asm/pci.h
index bdd65aaee30d..5a388eeeb28f 100644
--- a/arch/microblaze/include/asm/pci.h
+++ b/arch/microblaze/include/asm/pci.h
@@ -94,14 +94,6 @@ extern int pci_mmap_legacy_page_range(struct pci_bus *bus,
 
 #define HAVE_PCI_LEGACY 1
 
-/* pci_unmap_{page,single} is a nop so... */
-#define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
-#define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
-#define pci_unmap_addr(PTR, ADDR_NAME)          (0)
-#define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
-#define pci_unmap_len(PTR, LEN_NAME)            (0)
-#define pci_unmap_len_set(PTR, LEN_NAME, VAL)   do { } while (0)
-
 /* The PCI address space does equal the physical memory
  * address space (no IOMMU).  The IDE and SCSI device layers use
  * this boolean for bounce buffer decisions.
diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h
index f44b0d696fe2..c614a893f8a3 100644
--- a/arch/microblaze/include/asm/pgalloc.h
+++ b/arch/microblaze/include/asm/pgalloc.h
@@ -108,21 +108,7 @@ extern inline void free_pgd_slow(pgd_t *pgd)
 #define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); })
 #define pmd_alloc_one(mm, address)      ({ BUG(); ((pmd_t *)2); })
 
-static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-                unsigned long address)
-{
-        pte_t *pte;
-        extern void *early_get_page(void);
-        if (mem_init_done) {
-                pte = (pte_t *)__get_free_page(GFP_KERNEL |
-                                        __GFP_REPEAT | __GFP_ZERO);
-        } else {
-                pte = (pte_t *)early_get_page();
-                if (pte)
-                        clear_page(pte);
-        }
-        return pte;
-}
+extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
 
 static inline struct page *pte_alloc_one(struct mm_struct *mm,
                 unsigned long address)
diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h
index dd2bb60651c7..ca2d92871545 100644
--- a/arch/microblaze/include/asm/pgtable.h
+++ b/arch/microblaze/include/asm/pgtable.h
@@ -512,15 +512,6 @@ static inline pmd_t *pmd_offset(pgd_t *dir, unsigned long address)
 extern pgd_t swapper_pg_dir[PTRS_PER_PGD];
 
 /*
- * When flushing the tlb entry for a page, we also need to flush the hash
- * table entry.  flush_hash_page is assembler (for speed) in hashtable.S.
- */
-extern int flush_hash_page(unsigned context, unsigned long va, pte_t *ptep);
-
-/* Add an HPTE to the hash table */
-extern void add_hash_page(unsigned context, unsigned long va, pte_t *ptep);
-
-/*
  * Encode and decode a swap entry.
  * Note that the bits we use in a PTE for representing a swap entry
  * must not include the _PAGE_PRESENT bit, or the _PAGE_HASHPTE bit
@@ -533,15 +524,7 @@ extern void add_hash_page(unsigned context, unsigned long va, pte_t *ptep);
 #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) >> 2 })
 #define __swp_entry_to_pte(x)   ((pte_t) { (x).val << 2 })
 
-
-/* CONFIG_APUS */
-/* For virtual address to physical address conversion */
-extern void cache_clear(__u32 addr, int length);
-extern void cache_push(__u32 addr, int length);
-extern int mm_end_of_chunk(unsigned long addr, int len);
 extern unsigned long iopa(unsigned long addr);
-/* extern unsigned long mm_ptov(unsigned long addr) \
-        __attribute__ ((const)); TBD */
 
 /* Values for nocacheflag and cmode */
 /* These are not used by the APUS kernel_map, but prevents
@@ -552,18 +535,6 @@ extern unsigned long iopa(unsigned long addr);
 #define IOMAP_NOCACHE_NONSER    2
 #define IOMAP_NO_COPYBACK       3
 
-/*
- * Map some physical address range into the kernel address space.
- */
-extern unsigned long kernel_map(unsigned long paddr, unsigned long size,
-                                int nocacheflag, unsigned long *memavailp);
-
-/*
- * Set cache mode of (kernel space) address range.
- */
-extern void kernel_set_cachemode(unsigned long address, unsigned long size,
-                                unsigned int cmode);
-
 /* Needs to be defined here and not in linux/mm.h, as it is arch dependent */
 #define kern_addr_valid(addr)   (1)
 
@@ -577,10 +548,6 @@ extern void kernel_set_cachemode(unsigned long address, unsigned long size,
 void do_page_fault(struct pt_regs *regs, unsigned long address,
                    unsigned long error_code);
 
-void __init io_block_mapping(unsigned long virt, phys_addr_t phys,
-                             unsigned int size, int flags);
-
-void __init adjust_total_lowmem(void);
 void mapin_ram(void);
 int map_page(unsigned long va, phys_addr_t pa, int flags);
 
@@ -601,7 +568,7 @@ void __init *early_get_page(void);
 extern unsigned long ioremap_bot, ioremap_base;
 
 void *consistent_alloc(int gfp, size_t size, dma_addr_t *dma_handle);
-void consistent_free(void *vaddr);
+void consistent_free(size_t size, void *vaddr);
 void consistent_sync(void *vaddr, size_t size, int direction);
 void consistent_sync_page(struct page *page, unsigned long offset,
         size_t size, int direction);
diff --git a/arch/microblaze/kernel/asm-offsets.c b/arch/microblaze/kernel/asm-offsets.c
index 0071260a672c..c1b459c97571 100644
--- a/arch/microblaze/kernel/asm-offsets.c
+++ b/arch/microblaze/kernel/asm-offsets.c
@@ -16,6 +16,7 @@
 #include <linux/hardirq.h>
 #include <linux/thread_info.h>
 #include <linux/kbuild.h>
+#include <asm/cpuinfo.h>
 
 int main(int argc, char *argv[])
 {
diff --git a/arch/microblaze/kernel/cpu/cache.c b/arch/microblaze/kernel/cpu/cache.c
index f04d8a86dead..21c3a92394de 100644
--- a/arch/microblaze/kernel/cpu/cache.c
+++ b/arch/microblaze/kernel/cpu/cache.c
@@ -96,13 +96,16 @@ static inline void __disable_dcache_nomsr(void)
 }
 
 
-/* Helper macro for computing the limits of cache range loops */
+/* Helper macro for computing the limits of cache range loops
+ *
+ * End address can be unaligned which is OK for C implementation.
+ * ASM implementation align it in ASM macros
+ */
 #define CACHE_LOOP_LIMITS(start, end, cache_line_length, cache_size)    \
 do {                                                                    \
         int align = ~(cache_line_length - 1);                           \
         end = min(start + cache_size, end);                             \
         start &= align;                                                 \
-        end = ((end & align) + cache_line_length);                      \
 } while (0);
 
 /*
@@ -111,9 +114,9 @@ do {									\
  */
 #define CACHE_ALL_LOOP(cache_size, line_length, op)                     \
 do {                                                                    \
-        unsigned int len = cache_size;                                  \
+        unsigned int len = cache_size - line_length;                    \
         int step = -line_length;                                        \
-        BUG_ON(step >= 0);                                              \
+        WARN_ON(step >= 0);                                             \
                                                                         \
         __asm__ __volatile__ (" 1:      " #op " %0, r0;                 \
                                         bgtid   %0, 1b;                 \
@@ -122,26 +125,21 @@ do {									\
                                         : "memory");                    \
 } while (0);
 
-
-#define CACHE_ALL_LOOP2(cache_size, line_length, op)                    \
-do {                                                                    \
-        unsigned int len = cache_size;                                  \
-        int step = -line_length;                                        \
-        BUG_ON(step >= 0);                                              \
-                                                                        \
-        __asm__ __volatile__ (" 1:      " #op " r0, %0;                 \
-                                        bgtid   %0, 1b;                 \
-                                        addk    %0, %0, %1;             \
-                                        " : : "r" (len), "r" (step)     \
-                                        : "memory");                    \
-} while (0);
-
-/* for wdc.flush/clear */
+/* Used for wdc.flush/clear which can use rB for offset which is not possible
+ * to use for simple wdc or wic.
+ *
+ * start address is cache aligned
+ * end address is not aligned, if end is aligned then I have to substract
+ * cacheline length because I can't flush/invalidate the next cacheline.
+ * If is not, I align it because I will flush/invalidate whole line.
+ */
 #define CACHE_RANGE_LOOP_2(start, end, line_length, op)                 \
 do {                                                                    \
         int step = -line_length;                                        \
+        int align = ~(line_length - 1);                                 \
+        end = ((end & align) == end) ? end - line_length : end & align; \
         int count = end - start;                                        \
-        BUG_ON(count <= 0);                                             \
+        WARN_ON(count < 0);                                             \
                                                                         \
         __asm__ __volatile__ (" 1:      " #op " %0, %1;                 \
                                         bgtid   %1, 1b;                 \
@@ -154,7 +152,9 @@ do {									\
 #define CACHE_RANGE_LOOP_1(start, end, line_length, op)                 \
 do {                                                                    \
         int volatile temp;                                              \
-        BUG_ON(end - start <= 0);                                       \
+        int align = ~(line_length - 1);                                 \
+        end = ((end & align) == end) ? end - line_length : end & align; \
+        WARN_ON(end - start < 0);                                       \
                                                                         \
         __asm__ __volatile__ (" 1:      " #op " %1, r0;                 \
                                         cmpu    %0, %1, %2;             \
@@ -360,8 +360,12 @@ static void __invalidate_dcache_all_noirq_wt(void)
 #endif
 }
 
-/* FIXME this is weird - should be only wdc but not work
- * MS: I am getting bus errors and other weird things */
+/* FIXME It is blindly invalidation as is expected
+ * but can't be called on noMMU in microblaze_cache_init below
+ *
+ * MS: noMMU kernel won't boot if simple wdc is used
+ * The reason should be that there are discared data which kernel needs
+ */
 static void __invalidate_dcache_all_wb(void)
 {
 #ifndef ASM_LOOP
@@ -369,12 +373,12 @@ static void __invalidate_dcache_all_wb(void)
 #endif
         pr_debug("%s\n", __func__);
 #ifdef ASM_LOOP
-        CACHE_ALL_LOOP2(cpuinfo.dcache_size, cpuinfo.dcache_line_length,
-                                        wdc.clear)
+        CACHE_ALL_LOOP(cpuinfo.dcache_size, cpuinfo.dcache_line_length,
+                                        wdc)
 #else
         for (i = 0; i < cpuinfo.dcache_size;
                  i += cpuinfo.dcache_line_length)
-                        __asm__ __volatile__ ("wdc.clear        %0, r0;" \
+                        __asm__ __volatile__ ("wdc      %0, r0;" \
                                         : : "r" (i));
 #endif
 }
@@ -393,7 +397,7 @@ static void __invalidate_dcache_range_wb(unsigned long start,
 #ifdef ASM_LOOP
         CACHE_RANGE_LOOP_2(start, end, cpuinfo.dcache_line_length, wdc.clear);
 #else
-        for (i = start; i < end; i += cpuinfo.icache_line_length)
+        for (i = start; i < end; i += cpuinfo.dcache_line_length)
                 __asm__ __volatile__ ("wdc.clear        %0, r0;"        \
                                 : : "r" (i));
 #endif
@@ -413,7 +417,7 @@ static void __invalidate_dcache_range_nomsr_wt(unsigned long start,
 #ifdef ASM_LOOP
         CACHE_RANGE_LOOP_1(start, end, cpuinfo.dcache_line_length, wdc);
 #else
-        for (i = start; i < end; i += cpuinfo.icache_line_length)
+        for (i = start; i < end; i += cpuinfo.dcache_line_length)
                 __asm__ __volatile__ ("wdc      %0, r0;"        \
                                 : : "r" (i));
 #endif
@@ -437,7 +441,7 @@ static void __invalidate_dcache_range_msr_irq_wt(unsigned long start,
 #ifdef ASM_LOOP
         CACHE_RANGE_LOOP_1(start, end, cpuinfo.dcache_line_length, wdc);
 #else
-        for (i = start; i < end; i += cpuinfo.icache_line_length)
+        for (i = start; i < end; i += cpuinfo.dcache_line_length)
                 __asm__ __volatile__ ("wdc      %0, r0;"        \
                                 : : "r" (i));
 #endif
@@ -465,7 +469,7 @@ static void __invalidate_dcache_range_nomsr_irq(unsigned long start,
 #ifdef ASM_LOOP
         CACHE_RANGE_LOOP_1(start, end, cpuinfo.dcache_line_length, wdc);
 #else
-        for (i = start; i < end; i += cpuinfo.icache_line_length)
+        for (i = start; i < end; i += cpuinfo.dcache_line_length)
                 __asm__ __volatile__ ("wdc      %0, r0;"        \
                                 : : "r" (i));
 #endif
@@ -504,7 +508,7 @@ static void __flush_dcache_range_wb(unsigned long start, unsigned long end)
 #ifdef ASM_LOOP
         CACHE_RANGE_LOOP_2(start, end, cpuinfo.dcache_line_length, wdc.flush);
 #else
-        for (i = start; i < end; i += cpuinfo.icache_line_length)
+        for (i = start; i < end; i += cpuinfo.dcache_line_length)
                 __asm__ __volatile__ ("wdc.flush        %0, r0;"        \
                                 : : "r" (i));
 #endif
@@ -650,7 +654,11 @@ void microblaze_cache_init(void)
                         }
                 }
         }
-        invalidate_dcache();
+/* FIXME Invalidation is done in U-BOOT
+ * WT cache: Data is already written to main memory
+ * WB cache: Discard data on noMMU which caused that kernel doesn't boot
+ */
+        /* invalidate_dcache(); */
         enable_dcache();
 
         invalidate_icache();
diff --git a/arch/microblaze/kernel/cpu/mb.c b/arch/microblaze/kernel/cpu/mb.c
index 0c912b2a8e03..4216eb1eaa32 100644
--- a/arch/microblaze/kernel/cpu/mb.c
+++ b/arch/microblaze/kernel/cpu/mb.c
@@ -98,15 +98,17 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 
         if (cpuinfo.use_icache)
                 count += seq_printf(m,
-                                "Icache:\t\t%ukB\n",
-                                cpuinfo.icache_size >> 10);
+                                "Icache:\t\t%ukB\tline length:\t%dB\n",
+                                cpuinfo.icache_size >> 10,
+                                cpuinfo.icache_line_length);
         else
                 count += seq_printf(m, "Icache:\t\tno\n");
 
         if (cpuinfo.use_dcache) {
                 count += seq_printf(m,
-                                "Dcache:\t\t%ukB\n",
-                                cpuinfo.dcache_size >> 10);
+                                "Dcache:\t\t%ukB\tline length:\t%dB\n",
+                                cpuinfo.dcache_size >> 10,
+                                cpuinfo.dcache_line_length);
                 if (cpuinfo.dcache_wb)
                         count += seq_printf(m, "\t\twrite-back\n");
                 else
diff --git a/arch/microblaze/kernel/dma.c b/arch/microblaze/kernel/dma.c
index ce72dd4967cf..9dcd90b5df55 100644
--- a/arch/microblaze/kernel/dma.c
+++ b/arch/microblaze/kernel/dma.c
@@ -74,7 +74,7 @@ static void dma_direct_free_coherent(struct device *dev, size_t size,
                               void *vaddr, dma_addr_t dma_handle)
 {
 #ifdef NOT_COHERENT_CACHE
-        consistent_free(vaddr);
+        consistent_free(size, vaddr);
 #else
         free_pages((unsigned long)vaddr, get_order(size));
 #endif
diff --git a/arch/microblaze/kernel/exceptions.c b/arch/microblaze/kernel/exceptions.c
index d9f70f83097f..02cbdfe5aa8d 100644
--- a/arch/microblaze/kernel/exceptions.c
+++ b/arch/microblaze/kernel/exceptions.c
@@ -121,7 +121,7 @@ asmlinkage void full_exception(struct pt_regs *regs, unsigned int type,
                 }
                 printk(KERN_WARNING "Divide by zero exception " \
                                                         "in kernel mode.\n");
-                die("Divide by exception", regs, SIGBUS);
+                die("Divide by zero exception", regs, SIGBUS);
                 break;
         case MICROBLAZE_FPU_EXCEPTION:
                 pr_debug(KERN_WARNING "FPU exception\n");
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index da6a5f5dc766..1bf739888260 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -28,6 +28,7 @@
  * for more details.
  */
 
+#include <linux/init.h>
 #include <linux/linkage.h>
 #include <asm/thread_info.h>
 #include <asm/page.h>
@@ -49,7 +50,7 @@ swapper_pg_dir:
 
 #endif /* CONFIG_MMU */
 
-        .text
+        __HEAD
 ENTRY(_start)
 #if CONFIG_KERNEL_BASE_ADDR == 0
         brai    TOPHYS(real_start)
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index 6f39e2c001f3..8f120aca123d 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -9,6 +9,7 @@
  */
 
 #include <linux/init.h>
+#include <linux/ftrace.h>
 #include <linux/kernel.h>
 #include <linux/hardirq.h>
 #include <linux/interrupt.h>
@@ -32,7 +33,7 @@ EXPORT_SYMBOL_GPL(irq_of_parse_and_map);
 
 static u32 concurrent_irq;
 
-void do_IRQ(struct pt_regs *regs)
+void __irq_entry do_IRQ(struct pt_regs *regs)
 {
         unsigned int irq;
         struct pt_regs *old_regs = set_irq_regs(regs);
diff --git a/arch/microblaze/kernel/misc.S b/arch/microblaze/kernel/misc.S
index 7cf86498326c..0fb5fc6c1fc2 100644
--- a/arch/microblaze/kernel/misc.S
+++ b/arch/microblaze/kernel/misc.S
@@ -93,39 +93,3 @@ early_console_reg_tlb_alloc:
         nop
 
         .size  early_console_reg_tlb_alloc, . - early_console_reg_tlb_alloc
-
-/*
- * Copy a whole page (4096 bytes).
- */
-#define COPY_16_BYTES           \
-        lwi     r7, r6, 0;      \
-        lwi     r8, r6, 4;      \
-        lwi     r9, r6, 8;      \
-        lwi     r10, r6, 12;    \
-        swi     r7, r5, 0;      \
-        swi     r8, r5, 4;      \
-        swi     r9, r5, 8;      \
-        swi     r10, r5, 12
-
-
-/* FIXME DCACHE_LINE_BYTES (CONFIG_XILINX_MICROBLAZE0_DCACHE_LINE_LEN * 4)*/
-#define DCACHE_LINE_BYTES (4 * 4)
-
-.globl copy_page;
-.type  copy_page, @function
-.align 4;
-copy_page:
-        ori     r11, r0, (PAGE_SIZE/DCACHE_LINE_BYTES) - 1
-_copy_page_loop:
-        COPY_16_BYTES
-#if DCACHE_LINE_BYTES >= 32
-        COPY_16_BYTES
-#endif
-        addik   r6, r6, DCACHE_LINE_BYTES
-        addik   r5, r5, DCACHE_LINE_BYTES
-        bneid   r11, _copy_page_loop
-        addik   r11, r11, -1
-        rtsd    r15, 8
-        nop
-
-        .size  copy_page, . - copy_page
diff --git a/arch/microblaze/kernel/traps.c b/arch/microblaze/kernel/traps.c
index 5e4570ef515c..75e49202a5ed 100644
--- a/arch/microblaze/kernel/traps.c
+++ b/arch/microblaze/kernel/traps.c
@@ -95,37 +95,3 @@ void dump_stack(void)
         show_stack(NULL, NULL);
 }
 EXPORT_SYMBOL(dump_stack);
-
-#ifdef CONFIG_MMU
-void __bug(const char *file, int line, void *data)
-{
-        if (data)
-                printk(KERN_CRIT "kernel BUG at %s:%d (data = %p)!\n",
-                        file, line, data);
-        else
-                printk(KERN_CRIT "kernel BUG at %s:%d!\n", file, line);
-
-        machine_halt();
-}
-
-int bad_trap(int trap_num, struct pt_regs *regs)
-{
-        printk(KERN_CRIT
-                "unimplemented trap %d called at 0x%08lx, pid %d!\n",
-                trap_num, regs->pc, current->pid);
-        return -ENOSYS;
-}
-
-int debug_trap(struct pt_regs *regs)
-{
-        int i;
-        printk(KERN_CRIT "debug trap\n");
-        for (i = 0; i < 32; i++) {
-                /* printk("r%i:%08X\t",i,regs->gpr[i]); */
-                if ((i % 4) == 3)
-                        printk(KERN_CRIT "\n");
-        }
-        printk(KERN_CRIT "pc:%08lX\tmsr:%08lX\n", regs->pc, regs->msr);
-        return -ENOSYS;
-}
-#endif
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index 5ef619aad634..db72d7124602 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -24,7 +24,8 @@ SECTIONS {
         .text : AT(ADDR(.text) - LOAD_OFFSET) {
                 _text = . ;
                 _stext = . ;
-                *(.text .text.*)
+                HEAD_TEXT
+                TEXT_TEXT
                 *(.fixup)
                 EXIT_TEXT
                 EXIT_CALL
diff --git a/arch/microblaze/mm/consistent.c b/arch/microblaze/mm/consistent.c
index f956e24fe49c..5a59dad62bd2 100644
--- a/arch/microblaze/mm/consistent.c
+++ b/arch/microblaze/mm/consistent.c
@@ -42,11 +42,12 @@
 #include <linux/uaccess.h>
 #include <asm/pgtable.h>
 #include <asm/cpuinfo.h>
+#include <asm/tlbflush.h>
 
 #ifndef CONFIG_MMU
-
 /* I have to use dcache values because I can't relate on ram size */
-#define UNCACHED_SHADOW_MASK (cpuinfo.dcache_high - cpuinfo.dcache_base + 1)
+# define UNCACHED_SHADOW_MASK (cpuinfo.dcache_high - cpuinfo.dcache_base + 1)
+#endif
 
 /*
  * Consistent memory allocators. Used for DMA devices that want to
@@ -60,71 +61,16 @@
  */
 void *consistent_alloc(int gfp, size_t size, dma_addr_t *dma_handle)
 {
-        struct page *page, *end, *free;
-        unsigned long order;
-        void *ret, *virt;
-
-        if (in_interrupt())
-                BUG();
-
-        size = PAGE_ALIGN(size);
-        order = get_order(size);
-
-        page = alloc_pages(gfp, order);
-        if (!page)
-                goto no_page;
-
-        /* We could do with a page_to_phys and page_to_bus here. */
-        virt = page_address(page);
-        ret = ioremap(virt_to_phys(virt), size);
-        if (!ret)
-                goto no_remap;
-
-        /*
-         * Here's the magic!  Note if the uncached shadow is not implemented,
-         * it's up to the calling code to also test that condition and make
-         * other arranegments, such as manually flushing the cache and so on.
-         */
-#ifdef CONFIG_XILINX_UNCACHED_SHADOW
-        ret = (void *)((unsigned) ret | UNCACHED_SHADOW_MASK);
-#endif
-        /* dma_handle is same as physical (shadowed) address */
-        *dma_handle = (dma_addr_t)ret;
-
-        /*
-         * free wasted pages.  We skip the first page since we know
-         * that it will have count = 1 and won't require freeing.
-         * We also mark the pages in use as reserved so that
-         * remap_page_range works.
-         */
-        page = virt_to_page(virt);
-        free = page + (size >> PAGE_SHIFT);
-        end  = page + (1 << order);
-
-        for (; page < end; page++) {
-                init_page_count(page);
-                if (page >= free)
-                        __free_page(page);
-                else
-                        SetPageReserved(page);
-        }
-
-        return ret;
-no_remap:
-        __free_pages(page, order);
-no_page:
-        return NULL;
-}
-
-#else
+        unsigned long order, vaddr;
+        void *ret;
+        unsigned int i, err = 0;
+        struct page *page, *end;
 
-void *consistent_alloc(int gfp, size_t size, dma_addr_t *dma_handle)
-{
-        int order, err, i;
-        unsigned long page, va, flags;
+#ifdef CONFIG_MMU
         phys_addr_t pa;
         struct vm_struct *area;
-        void     *ret;
+        unsigned long va;
+#endif
 
         if (in_interrupt())
                 BUG();
@@ -133,71 +79,133 @@ void *consistent_alloc(int gfp, size_t size, dma_addr_t *dma_handle)
         size = PAGE_ALIGN(size);
         order = get_order(size);
 
-        page = __get_free_pages(gfp, order);
-        if (!page) {
-                BUG();
+        vaddr = __get_free_pages(gfp, order);
+        if (!vaddr)
                 return NULL;
-        }
 
         /*
          * we need to ensure that there are no cachelines in use,
          * or worse dirty in this area.
          */
-        flush_dcache_range(virt_to_phys(page), virt_to_phys(page) + size);
+        flush_dcache_range(virt_to_phys((void *)vaddr),
+                                        virt_to_phys((void *)vaddr) + size);
 
+#ifndef CONFIG_MMU
+        ret = (void *)vaddr;
+        /*
+         * Here's the magic!  Note if the uncached shadow is not implemented,
+         * it's up to the calling code to also test that condition and make
+         * other arranegments, such as manually flushing the cache and so on.
+         */
+# ifdef CONFIG_XILINX_UNCACHED_SHADOW
+        ret = (void *)((unsigned) ret | UNCACHED_SHADOW_MASK);
+# endif
+        if ((unsigned int)ret > cpuinfo.dcache_base &&
+                                (unsigned int)ret < cpuinfo.dcache_high)
+                printk(KERN_WARNING
+                        "ERROR: Your cache coherent area is CACHED!!!\n");
+
+        /* dma_handle is same as physical (shadowed) address */
+        *dma_handle = (dma_addr_t)ret;
+#else
         /* Allocate some common virtual space to map the new pages. */
         area = get_vm_area(size, VM_ALLOC);
-        if (area == NULL) {
-                free_pages(page, order);
+        if (!area) {
+                free_pages(vaddr, order);
                 return NULL;
         }
         va = (unsigned long) area->addr;
         ret = (void *)va;
 
         /* This gives us the real physical address of the first page. */
-        *dma_handle = pa = virt_to_bus((void *)page);
-
-        /* MS: This is the whole magic - use cache inhibit pages */
-        flags = _PAGE_KERNEL | _PAGE_NO_CACHE;
+        *dma_handle = pa = virt_to_bus((void *)vaddr);
+#endif
 
         /*
-         * Set refcount=1 on all pages in an order>0
-         * allocation so that vfree() will actually
-         * free all pages that were allocated.
+         * free wasted pages.  We skip the first page since we know
+         * that it will have count = 1 and won't require freeing.
+         * We also mark the pages in use as reserved so that
+         * remap_page_range works.
          */
-        if (order > 0) {
-                struct page *rpage = virt_to_page(page);
-                for (i = 1; i < (1 << order); i++)
-                        init_page_count(rpage+i);
+        page = virt_to_page(vaddr);
+        end = page + (1 << order);
+
+        split_page(page, order);
+
+        for (i = 0; i < size && err == 0; i += PAGE_SIZE) {
+#ifdef CONFIG_MMU
+                /* MS: This is the whole magic - use cache inhibit pages */
+                err = map_page(va + i, pa + i, _PAGE_KERNEL | _PAGE_NO_CACHE);
+#endif
+
+                SetPageReserved(page);
+                page++;
         }
 
-        err = 0;
-        for (i = 0; i < size && err == 0; i += PAGE_SIZE)
-                err = map_page(va+i, pa+i, flags);
+        /* Free the otherwise unused pages. */
+        while (page < end) {
+                __free_page(page);
+                page++;
+        }
 
         if (err) {
-                vfree((void *)va);
+                free_pages(vaddr, order);
                 return NULL;
         }
 
         return ret;
 }
-#endif /* CONFIG_MMU */
 EXPORT_SYMBOL(consistent_alloc);
 
 /*
  * free page(s) as defined by the above mapping.
  */
-void consistent_free(void *vaddr)
+void consistent_free(size_t size, void *vaddr)
 {
+        struct page *page;
+
         if (in_interrupt())
                 BUG();
 
+        size = PAGE_ALIGN(size);
+
+#ifndef CONFIG_MMU
         /* Clear SHADOW_MASK bit in address, and free as per usual */
-#ifdef CONFIG_XILINX_UNCACHED_SHADOW
+# ifdef CONFIG_XILINX_UNCACHED_SHADOW
         vaddr = (void *)((unsigned)vaddr & ~UNCACHED_SHADOW_MASK);
+# endif
+        page = virt_to_page(vaddr);
+
+        do {
+                ClearPageReserved(page);
+                __free_page(page);
+                page++;
+        } while (size -= PAGE_SIZE);
+#else
+        do {
+                pte_t *ptep;
+                unsigned long pfn;
+
+                ptep = pte_offset_kernel(pmd_offset(pgd_offset_k(
+                                                (unsigned int)vaddr),
+                                        (unsigned int)vaddr),
+                                (unsigned int)vaddr);
+                if (!pte_none(*ptep) && pte_present(*ptep)) {
+                        pfn = pte_pfn(*ptep);
+                        pte_clear(&init_mm, (unsigned int)vaddr, ptep);
+                        if (pfn_valid(pfn)) {
+                                page = pfn_to_page(pfn);
+
+                                ClearPageReserved(page);
+                                __free_page(page);
+                        }
+                }
+                vaddr += PAGE_SIZE;
+        } while (size -= PAGE_SIZE);
+
+        /* flush tlb */
+        flush_tlb_all();
 #endif
-        vfree(vaddr);
 }
 EXPORT_SYMBOL(consistent_free);
 
@@ -221,7 +229,7 @@ void consistent_sync(void *vaddr, size_t size, int direction)
         case PCI_DMA_NONE:
                 BUG();
         case PCI_DMA_FROMDEVICE:        /* invalidate only */
-                flush_dcache_range(start, end);
+                invalidate_dcache_range(start, end);
                 break;
         case PCI_DMA_TODEVICE:          /* writeback only */
                 flush_dcache_range(start, end);
diff --git a/arch/microblaze/mm/fault.c b/arch/microblaze/mm/fault.c
index 7af87f4b2c2c..bab922993185 100644
--- a/arch/microblaze/mm/fault.c
+++ b/arch/microblaze/mm/fault.c
@@ -273,16 +273,11 @@ bad_area_nosemaphore:
  * us unable to handle the page fault gracefully.
  */
 out_of_memory:
-        if (current->pid == 1) {
-                yield();
-                down_read(&mm->mmap_sem);
-                goto survive;
-        }
         up_read(&mm->mmap_sem);
-        printk(KERN_WARNING "VM: killing process %s\n", current->comm);
-        if (user_mode(regs))
-                do_exit(SIGKILL);
-        bad_page_fault(regs, address, SIGKILL);
+        if (!user_mode(regs))
+                bad_page_fault(regs, address, SIGKILL);
+        else
+                pagefault_out_of_memory();
         return;
 
 do_sigbus:
diff --git a/arch/microblaze/mm/pgtable.c b/arch/microblaze/mm/pgtable.c
index d31312cde6ea..784557fb28cf 100644
--- a/arch/microblaze/mm/pgtable.c
+++ b/arch/microblaze/mm/pgtable.c
@@ -161,24 +161,6 @@ int map_page(unsigned long va, phys_addr_t pa, int flags)
         return err;
 }
 
-void __init adjust_total_lowmem(void)
-{
-/* TBD */
-#if 0
-        unsigned long max_low_mem = MAX_LOW_MEM;
-
-        if (total_lowmem > max_low_mem) {
-                total_lowmem = max_low_mem;
-#ifndef CONFIG_HIGHMEM
-                printk(KERN_INFO "Warning, memory limited to %ld Mb, use "
-                                "CONFIG_HIGHMEM to reach %ld Mb\n",
-                                max_low_mem >> 20, total_memory >> 20);
-                total_memory = total_lowmem;
-#endif /* CONFIG_HIGHMEM */
-        }
-#endif
-}
-
 /*
  * Map in all of physical memory starting at CONFIG_KERNEL_START.
  */
@@ -206,24 +188,6 @@ void __init mapin_ram(void)
 /* is x a power of 2? */
 #define is_power_of_2(x)        ((x) != 0 && (((x) & ((x) - 1)) == 0))
 
-/*
- * Set up a mapping for a block of I/O.
- * virt, phys, size must all be page-aligned.
- * This should only be called before ioremap is called.
- */
-void __init io_block_mapping(unsigned long virt, phys_addr_t phys,
-                             unsigned int size, int flags)
-{
-        int i;
-
-        if (virt > CONFIG_KERNEL_START && virt < ioremap_bot)
-                ioremap_bot = ioremap_base = virt;
-
-        /* Put it in the page tables. */
-        for (i = 0; i < size; i += PAGE_SIZE)
-                map_page(virt + i, phys + i, flags);
-}
-
 /* Scan the real Linux page tables and return a PTE pointer for
  * a virtual address in a context.
  * Returns true (1) if PTE was found, zero otherwise.  The pointer to
@@ -274,3 +238,18 @@ unsigned long iopa(unsigned long addr)
 
         return pa;
 }
+
+__init_refok pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
+                unsigned long address)
+{
+        pte_t *pte;
+        if (mem_init_done) {
+                pte = (pte_t *)__get_free_page(GFP_KERNEL |
+                                        __GFP_REPEAT | __GFP_ZERO);
+        } else {
+                pte = (pte_t *)early_get_page();
+                if (pte)
+                        clear_page(pte);
+        }
+        return pte;
+}
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index 740bb32ec57e..01c8c97c15b7 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -1025,7 +1025,7 @@ static void __devinit pcibios_fixup_bridge(struct pci_bus *bus)
 
         struct pci_dev *dev = bus->self;
 
-        for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
+        pci_bus_for_each_resource(bus, res, i) {
                 res = bus->resource[i];
                 if (!res)
                         continue;
@@ -1131,21 +1131,20 @@ static int skip_isa_ioresource_align(struct pci_dev *dev)
  * but we want to try to avoid allocating at 0x2900-0x2bff
  * which might have be mirrored at 0x0100-0x03ff..
  */
-void pcibios_align_resource(void *data, struct resource *res,
+resource_size_t pcibios_align_resource(void *data, const struct resource *res,
                                 resource_size_t size, resource_size_t align)
 {
         struct pci_dev *dev = data;
+        resource_size_t start = res->start;
 
         if (res->flags & IORESOURCE_IO) {
-                resource_size_t start = res->start;
-
                 if (skip_isa_ioresource_align(dev))
-                        return;
-                if (start & 0x300) {
+                        return start;
+                if (start & 0x300)
                         start = (start + 0x3ff) & ~0x3ff;
-                        res->start = start;
-                }
         }
+
+        return start;
 }
 EXPORT_SYMBOL(pcibios_align_resource);
 
@@ -1228,7 +1227,7 @@ void pcibios_allocate_bus_resources(struct pci_bus *bus)
         pr_debug("PCI: Allocating bus resources for %04x:%02x...\n",
                  pci_domain_nr(bus), bus->number);
 
-        for (i = 0; i < PCI_BUS_NUM_RESOURCES; ++i) {
+        pci_bus_for_each_resource(bus, res, i) {
                 res = bus->resource[i];
                 if (!res || !res->flags
                     || res->start > res->end || res->parent)