diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index c9c4be822456b4320800571e11dba5023ab67bf1..a75896f18e58f246212d38866acde330b45c3999 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -46,6 +46,7 @@ config MICROBLAZE
 	select VIRT_TO_BUS
 	select CPU_NO_EFFICIENT_FFS
 	select MMU_GATHER_NO_RANGE if MMU
+	select SPARSE_IRQ
 
 # Endianness selection
 choice
diff --git a/arch/microblaze/configs/mmu_defconfig b/arch/microblaze/configs/mmu_defconfig
index 654edfdc786701dd19af00bcc04ae7b29abec810..b3b433db89d86446f88388042a5554e28d5bf2d5 100644
--- a/arch/microblaze/configs/mmu_defconfig
+++ b/arch/microblaze/configs/mmu_defconfig
@@ -33,6 +33,8 @@ CONFIG_INET=y
 # CONFIG_IPV6 is not set
 CONFIG_BRIDGE=m
 CONFIG_PCI=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_MTD=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
@@ -73,6 +75,7 @@ CONFIG_UIO_PDRV_GENIRQ=y
 CONFIG_UIO_DMEM_GENIRQ=y
 CONFIG_EXT2_FS=y
 # CONFIG_DNOTIFY is not set
+CONFIG_TMPFS=y
 CONFIG_CRAMFS=y
 CONFIG_ROMFS_FS=y
 CONFIG_NFS_FS=y
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index d785defeeed58e0927c4d5de221c6e623b8590c8..eac2fb4b3fb9b8bebbb7656344544742ba48404b 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -9,7 +9,6 @@
 #ifndef _ASM_MICROBLAZE_IRQ_H
 #define _ASM_MICROBLAZE_IRQ_H
 
-#define NR_IRQS		(32 + 1)
 #include <asm-generic/irq.h>
 
 struct pt_regs;
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index 4e1b567becd6a86e6edfa7dc1c8d7bf6d82a4b18..de7083bd1d2427e2bd5935dbd592303e957f8314 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -738,14 +738,9 @@ no_intr_resched:
 	andi	r5, r5, _TIF_NEED_RESCHED;
 	beqi	r5, restore /* if zero jump over */
 
-preempt:
 	/* interrupts are off that's why I am calling preempt_chedule_irq */
 	bralid	r15, preempt_schedule_irq
 	nop
-	lwi	r11, CURRENT_TASK, TS_THREAD_INFO;	/* get thread info */
-	lwi	r5, r11, TI_FLAGS;		/* get flags in thread info */
-	andi	r5, r5, _TIF_NEED_RESCHED;
-	bnei	r5, preempt /* if non zero jump to resched */
 restore:
 #endif
 	VM_OFF /* MS: turn off MMU */
diff --git a/arch/microblaze/kernel/head.S b/arch/microblaze/kernel/head.S
index f264fdcf152aa85ea86ea66016851172099300f3..7d2894418691cb06285399a849762ef9d4a8c2f8 100644
--- a/arch/microblaze/kernel/head.S
+++ b/arch/microblaze/kernel/head.S
@@ -99,7 +99,7 @@ big_endian:
 _prepare_copy_fdt:
 	or	r11, r0, r0 /* incremment */
 	ori	r4, r0, TOPHYS(_fdt_start)
-	ori	r3, r0, (0x8000 - 4)
+	ori	r3, r0, (0x10000 - 4)
 _copy_fdt:
 	lw	r12, r7, r11 /* r12 = r7 + r11 */
 	sw	r12, r4, r11 /* addr[r4 + r11] = r12 */
diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S
index 760cac41cbfe3d620198bc9dd8d0c8a867fbf620..2c09fa3a8a01be788b2874b49e1ce2c3ec3dd872 100644
--- a/arch/microblaze/kernel/vmlinux.lds.S
+++ b/arch/microblaze/kernel/vmlinux.lds.S
@@ -48,7 +48,7 @@ SECTIONS {
 	__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET) {
 		_fdt_start = . ;		/* place for fdt blob */
 		*(__fdt_blob) ;			/* Any link-placed DTB */
-	        . = _fdt_start + 0x8000;	/* Pad up to 32kbyte */
+	        . = _fdt_start + 0x10000;	/* Pad up to 64kbyte */
 		_fdt_end = . ;
 	}