diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 9619c43783ff..16b82e1272b0 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -939,7 +939,8 @@ config KEXEC
 
 config ATAGS_PROC
 	bool "Export atags in procfs"
-	default n
+	depends on KEXEC
+	default y
 	help
 	  Should the atags used to boot the kernel be exported in an "atags"
 	  file in procfs. Useful with kexec.
diff --git a/arch/arm/mach-pxa/cpu-pxa.c b/arch/arm/mach-pxa/cpu-pxa.c
index 939a3867f77c..4b21479332ae 100644
--- a/arch/arm/mach-pxa/cpu-pxa.c
+++ b/arch/arm/mach-pxa/cpu-pxa.c
@@ -43,7 +43,7 @@
 
 #ifdef DEBUG
 static unsigned int freq_debug;
-MODULE_PARM(freq_debug, "i");
+module_param(freq_debug, uint, 0);
 MODULE_PARM_DESC(freq_debug, "Set the debug messages to on=1/off=0");
 #else
 #define freq_debug  0
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 7cd9ef8deb02..35f25fdaeba3 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -129,28 +129,20 @@ static void clk_pxa3xx_cken_enable(struct clk *clk)
 {
 	unsigned long mask = 1ul << (clk->cken & 0x1f);
 
-	local_irq_disable();
-
 	if (clk->cken < 32)
 		CKENA |= mask;
 	else
 		CKENB |= mask;
-
-	local_irq_enable();
 }
 
 static void clk_pxa3xx_cken_disable(struct clk *clk)
 {
 	unsigned long mask = 1ul << (clk->cken & 0x1f);
 
-	local_irq_disable();
-
 	if (clk->cken < 32)
 		CKENA &= ~mask;
 	else
 		CKENB &= ~mask;
-
-	local_irq_enable();
 }
 
 static const struct clkops clk_pxa3xx_cken_ops = {
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 7731d50dd86c..afd2cbfca0d9 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -58,7 +58,7 @@ static struct platform_device smc91x_device = {
 	.resource	= smc91x_resources,
 };
 
-#if defined(CONFIG_FB_PXA) || (CONFIG_FB_PXA_MODULES)
+#if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 static void zylonite_backlight_power(int on)
 {
 	gpio_set_value(gpio_backlight, on);
diff --git a/arch/arm/mm/mmap.c b/arch/arm/mm/mmap.c
index 2728b0e7d2bb..3f6dc40b8353 100644
--- a/arch/arm/mm/mmap.c
+++ b/arch/arm/mm/mmap.c
@@ -120,6 +120,8 @@ arch_get_unmapped_area(struct file *filp, unsigned long addr,
  */
 int valid_phys_addr_range(unsigned long addr, size_t size)
 {
+	if (addr < PHYS_OFFSET)
+		return 0;
 	if (addr + size > __pa(high_memory))
 		return 0;
 
diff --git a/include/asm-arm/arch-pxa/entry-macro.S b/include/asm-arm/arch-pxa/entry-macro.S
index b7e730851461..c145bb01bc8f 100644
--- a/include/asm-arm/arch-pxa/entry-macro.S
+++ b/include/asm-arm/arch-pxa/entry-macro.S
@@ -35,7 +35,7 @@
 1004:
 		mrc	p6, 0, \irqstat, c6, c0, 0	@ ICIP2
 		mrc	p6, 0, \irqnr, c7, c0, 0	@ ICMR2
-		ands	\irqstat, \irqstat, \irqnr
+		ands	\irqnr, \irqstat, \irqnr
 		beq	1003f
 		rsb	\irqstat, \irqnr, #0
 		and	\irqstat, \irqstat, \irqnr
diff --git a/include/asm-arm/arch-pxa/pxa-regs.h b/include/asm-arm/arch-pxa/pxa-regs.h
index ac175b4d10cb..2357a73340d4 100644
--- a/include/asm-arm/arch-pxa/pxa-regs.h
+++ b/include/asm-arm/arch-pxa/pxa-regs.h
@@ -520,6 +520,9 @@
 #define MCCR_FSRIE	(1 << 1)	/* FIFO Service Request Interrupt Enable */
 
 #define GCR		__REG(0x4050000C)  /* Global Control Register */
+#ifdef CONFIG_PXA3xx
+#define GCR_CLKBPB	(1 << 31)	/* Internal clock enable */
+#endif
 #define GCR_nDMAEN	(1 << 24)	/* non DMA Enable */
 #define GCR_CDONE_IE	(1 << 19)	/* Command Done Interrupt Enable */
 #define GCR_SDONE_IE	(1 << 18)	/* Status Done Interrupt Enable */
diff --git a/include/asm-arm/kexec.h b/include/asm-arm/kexec.h
index 1ee17b6951d0..47fe34d692da 100644
--- a/include/asm-arm/kexec.h
+++ b/include/asm-arm/kexec.h
@@ -8,7 +8,7 @@
 /* Maximum address we can reach in physical address mode */
 #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
 /* Maximum address we can use for the control code buffer */
-#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
+#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
 
 #define KEXEC_CONTROL_CODE_SIZE	4096
 
diff --git a/include/asm-arm/unaligned.h b/include/asm-arm/unaligned.h
index 8431f6eed5c6..5db03cf3b905 100644
--- a/include/asm-arm/unaligned.h
+++ b/include/asm-arm/unaligned.h
@@ -40,16 +40,16 @@ extern int __bug_unaligned_x(const void *ptr);
  */
 
 #define __get_unaligned_2_le(__p)					\
-	(__p[0] | __p[1] << 8)
+	(unsigned int)(__p[0] | __p[1] << 8)
 
 #define __get_unaligned_2_be(__p)					\
-	(__p[0] << 8 | __p[1])
+	(unsigned int)(__p[0] << 8 | __p[1])
 
 #define __get_unaligned_4_le(__p)					\
-	(__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24)
+	(unsigned int)(__p[0] | __p[1] << 8 | __p[2] << 16 | __p[3] << 24)
 
 #define __get_unaligned_4_be(__p)					\
-	(__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3])
+	(unsigned int)(__p[0] << 24 | __p[1] << 16 | __p[2] << 8 | __p[3])
 
 #define __get_unaligned_8_le(__p)					\
 	((unsigned long long)__get_unaligned_4_le((__p+4)) << 32 |	\