diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 485513c9f1af4c4f4f0aa91ad6d29f0ccb363c1c..5b8d8382b7629e93ccdb07a7d86b96049f587e38 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -442,10 +442,6 @@ config SECCOMP
 
 	  If unsure, say Y. Only embedded should say N here.
 
-config WANT_DEVICE_TREE
-	bool
-	default n
-
 endmenu
 
 config ISA_DMA_API
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 49797a45416c8ce441c3255ae2b0ce41a9989dbb..63d07ccbb9db5646e2a50522eb0206f4460bbefb 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -147,6 +147,8 @@ HOSTCFLAGS += -I$(src)/dtc-src/ -I$(src)/libfdt/
 targets += dtc-src/dtc-parser.tab.c
 targets += dtc-src/dtc-lexer.lex.c
 
+clean-files += dtc-src/dtc-parser.tab.h
+
 ifdef DTC_GENPARSER
 BISON = bison
 FLEX = flex
diff --git a/arch/powerpc/boot/ps3-hvcall.S b/arch/powerpc/boot/ps3-hvcall.S
index 585965f7e6a89edc988e02f38e802e5de0e23627..d6068f1829ca354552d3d6632a889fedaa627c75 100644
--- a/arch/powerpc/boot/ps3-hvcall.S
+++ b/arch/powerpc/boot/ps3-hvcall.S
@@ -145,7 +145,7 @@
 .macro STORE_REGS_5_2
 	lwz r11, 16(r1)
 	std r4, 0(r11)
-	lwz r11, 24(r1)
+	lwz r11, 20(r1)
 	std r5, 0(r11)
 .endm
 
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 0662ae46f7246321d865be8a92239679f1837d06..c1baf9d5903feaac10959b604d8a92ca5671c91e 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -104,3 +104,5 @@ quiet_cmd_systbl_chk = CALL    $<
 PHONY += systbl_chk
 systbl_chk: $(src)/systbl_chk.sh $(obj)/systbl_chk.i
 	$(call cmd,systbl_chk)
+
+clean-files := vmlinux.lds
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index b9d88374f14f07abe21e51367110e6c82129ba99..4846bf543a8c5cf9dd2f95a611c4deae04cd9863 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -462,7 +462,7 @@ void show_regs(struct pt_regs * regs)
 	       current, task_pid_nr(current), current->comm, task_thread_info(current));
 
 #ifdef CONFIG_SMP
-	printk(" CPU: %d", smp_processor_id());
+	printk(" CPU: %d", raw_smp_processor_id());
 #endif /* CONFIG_SMP */
 
 	for (i = 0;  i < 32;  i++) {
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 3702df7dc567e160f08cfe09b5b825b5298a0f94..d3437c4c4a6f9b81f99020353dceaff248a54a06 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -336,9 +336,9 @@ static unsigned long __init find_function32(struct lib32_elfinfo *lib,
 	return sym->st_value - VDSO32_LBASE;
 }
 
-static int vdso_do_func_patch32(struct lib32_elfinfo *v32,
-				struct lib64_elfinfo *v64,
-				const char *orig, const char *fix)
+static int __init vdso_do_func_patch32(struct lib32_elfinfo *v32,
+				       struct lib64_elfinfo *v64,
+				       const char *orig, const char *fix)
 {
 	Elf32_Sym *sym32_gen, *sym32_fix;
 
@@ -433,9 +433,9 @@ static unsigned long __init find_function64(struct lib64_elfinfo *lib,
 #endif
 }
 
-static int vdso_do_func_patch64(struct lib32_elfinfo *v32,
-				struct lib64_elfinfo *v64,
-				const char *orig, const char *fix)
+static int __init vdso_do_func_patch64(struct lib32_elfinfo *v32,
+				       struct lib64_elfinfo *v64,
+				       const char *orig, const char *fix)
 {
 	Elf64_Sym *sym64_gen, *sym64_fix;
 
diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
index c6fa49e23dc05edb7bc6f97340d1e7d6a13f1003..4c0da0c079e9666fbe412a8d419b9b2e79854462 100644
--- a/arch/powerpc/platforms/512x/Kconfig
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -13,7 +13,6 @@ config MPC5121_ADS
 	bool "Freescale MPC5121E ADS"
 	depends on PPC_MULTIPLATFORM && PPC32
 	select DEFAULT_UIMAGE
-	select WANT_DEVICE_TREE
 	select PPC_MPC5121
 	help
 	  This option enables support for the MPC5121E ADS board.
diff --git a/arch/powerpc/platforms/52xx/Kconfig b/arch/powerpc/platforms/52xx/Kconfig
index 515f244c90bb751ac85d5d9ee46c2b8635be9810..cf945d55c2762b072a07a1c8bb2128fd4716081f 100644
--- a/arch/powerpc/platforms/52xx/Kconfig
+++ b/arch/powerpc/platforms/52xx/Kconfig
@@ -8,7 +8,6 @@ config PPC_MPC5200_SIMPLE
 	bool "Generic support for simple MPC5200 based boards"
 	depends on PPC_MPC52xx
 	select DEFAULT_UIMAGE
-	select WANT_DEVICE_TREE
 	help
 	  This option enables support for a simple MPC52xx based boards which
 	  do not need a custom platform specific setup. Such boards are
@@ -35,7 +34,6 @@ config PPC_LITE5200
 	bool "Freescale Lite5200 Eval Board"
 	depends on PPC_MPC52xx
 	select DEFAULT_UIMAGE
-	select WANT_DEVICE_TREE
 
 config PPC_MPC5200_BUGFIX
 	bool "MPC5200 (L25R) bugfix support"
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index fcedbec07f94fe7478f50f19833afe3b9c87a20e..0afd22595546fc68d981972e15e0815eda7da09d 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -15,7 +15,6 @@ config PPC_MULTIPLATFORM
 config PPC_82xx
 	bool "Freescale 82xx"
 	depends on 6xx
-	select WANT_DEVICE_TREE
 
 config PPC_83xx
 	bool "Freescale 83xx"
@@ -23,7 +22,6 @@ config PPC_83xx
 	select FSL_SOC
 	select MPC83xx
 	select IPIC
-	select WANT_DEVICE_TREE
 	select FSL_EMB_PERFMON
 
 config PPC_86xx
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 69941ba709753fe0972f125aa2121c857161aa3d..73d81ce14b6763c185397d998c1208c4a073d0ab 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -29,26 +29,22 @@ config PPC_85xx
 	bool "Freescale 85xx"
 	select E500
 	select FSL_SOC
-	select WANT_DEVICE_TREE
 	select MPC85xx
 
 config PPC_8xx
 	bool "Freescale 8xx"
 	select FSL_SOC
 	select 8xx
-	select WANT_DEVICE_TREE
 	select PPC_LIB_RHEAP
 
 config 40x
 	bool "AMCC 40x"
 	select PPC_DCR_NATIVE
-	select WANT_DEVICE_TREE
 	select PPC_UDBG_16550
 
 config 44x
 	bool "AMCC 44x"
 	select PPC_DCR_NATIVE
-	select WANT_DEVICE_TREE
 	select PPC_UDBG_16550
 
 config E200
diff --git a/arch/powerpc/platforms/cell/ras.c b/arch/powerpc/platforms/cell/ras.c
index b2494ebcdbe9a131beb472f2ca45d04825a509d9..e43024c0392e2802ced8f5a5af9c8695f25891d8 100644
--- a/arch/powerpc/platforms/cell/ras.c
+++ b/arch/powerpc/platforms/cell/ras.c
@@ -1,4 +1,13 @@
-#define DEBUG
+/*
+ * Copyright 2006-2008, IBM Corporation.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#undef DEBUG
 
 #include <linux/types.h>
 #include <linux/kernel.h>
diff --git a/arch/powerpc/platforms/embedded6xx/Kconfig b/arch/powerpc/platforms/embedded6xx/Kconfig
index 6c80837579382badd588363534730727377411f6..4290889678137f1fc20ad3a7f9550e844c7568a7 100644
--- a/arch/powerpc/platforms/embedded6xx/Kconfig
+++ b/arch/powerpc/platforms/embedded6xx/Kconfig
@@ -24,7 +24,6 @@ config STORCENTER
 	select MPIC
 	select FSL_SOC
 	select PPC_UDBG_16550 if SERIAL_8250
-	select WANT_DEVICE_TREE
 	select MPC10X_OPENPIC
 	select MPC10X_BRIDGE
 	help
@@ -37,7 +36,6 @@ config MPC7448HPC2
 	select TSI108_BRIDGE
 	select DEFAULT_UIMAGE
 	select PPC_UDBG_16550
-	select WANT_DEVICE_TREE
 	select TSI108_BRIDGE
 	help
 	  Select MPC7448HPC2 if configuring for Freescale MPC7448HPC2 (Taiga)
@@ -48,7 +46,6 @@ config PPC_HOLLY
 	depends on EMBEDDED6xx
 	select TSI108_BRIDGE
 	select PPC_UDBG_16550
-	select WANT_DEVICE_TREE
 	select TSI108_BRIDGE
 	help
 	  Select PPC_HOLLY if configuring for an IBM 750GX/CL Eval
@@ -59,7 +56,6 @@ config PPC_PRPMC2800
 	depends on EMBEDDED6xx
 	select MV64X60
 	select NOT_COHERENT_CACHE
-	select WANT_DEVICE_TREE
 	help
 	  This option enables support for the Motorola PrPMC2800 board
 
diff --git a/arch/powerpc/platforms/iseries/vio.c b/arch/powerpc/platforms/iseries/vio.c
index be06cfd9fa3d5e20afbeaf7f444ce5bc4ea5c172..657b72f68493f63190fed4184e82d6cae427bfc8 100644
--- a/arch/powerpc/platforms/iseries/vio.c
+++ b/arch/powerpc/platforms/iseries/vio.c
@@ -75,7 +75,7 @@ static struct property *new_property(const char *name, int length,
 	return np;
 }
 
-static void __init free_property(struct property *np)
+static void free_property(struct property *np)
 {
 	kfree(np);
 }
diff --git a/drivers/char/hvc_rtas.c b/drivers/char/hvc_rtas.c
index bb09413d5a21ed5d09db2b1185c50141553ab0da..88590d040046decb71f76629c3aa52fd0383817b 100644
--- a/drivers/char/hvc_rtas.c
+++ b/drivers/char/hvc_rtas.c
@@ -76,7 +76,7 @@ static struct hv_ops hvc_rtas_get_put_ops = {
 	.put_chars = hvc_rtas_write_console,
 };
 
-static int hvc_rtas_init(void)
+static int __init hvc_rtas_init(void)
 {
 	struct hvc_struct *hp;
 
diff --git a/drivers/ps3/ps3-lpm.c b/drivers/ps3/ps3-lpm.c
index 4c066545d176c8dd8d2126b49d67017224bf4f89..6c9592ce49961e6a145463392f2c0523a5569cf6 100644
--- a/drivers/ps3/ps3-lpm.c
+++ b/drivers/ps3/ps3-lpm.c
@@ -76,7 +76,6 @@
  *
  * @pm_control: Shadow of the processor's pm_control register.
  * @pm_start_stop: Shadow of the processor's pm_start_stop register.
- * @pm_interval: Shadow of the processor's pm_interval register.
  * @group_control: Shadow of the processor's group_control register.
  * @debug_bus_control: Shadow of the processor's debug_bus_control register.
  *
@@ -91,7 +90,6 @@
 struct ps3_lpm_shadow_regs {
 	u64 pm_control;
 	u64 pm_start_stop;
-	u64 pm_interval;
 	u64 group_control;
 	u64 debug_bus_control;
 };
@@ -181,9 +179,9 @@ void ps3_set_bookmark(u64 bookmark)
 	 * includes cycles before the call.
 	 */
 
-	asm volatile("or 29, 29, 29;"); /* db10cyc */
+	asm volatile("nop;nop;nop;nop;nop;nop;nop;nop;nop;");
 	mtspr(SPRN_BKMK, bookmark);
-	asm volatile("or 29, 29, 29;"); /* db10cyc */
+	asm volatile("nop;nop;nop;nop;nop;nop;nop;nop;nop;");
 }
 EXPORT_SYMBOL_GPL(ps3_set_bookmark);
 
@@ -408,7 +406,14 @@ u32 ps3_read_pm(u32 cpu, enum pm_reg_name reg)
 	case pm_start_stop:
 		return lpm_priv->shadow.pm_start_stop;
 	case pm_interval:
-		return lpm_priv->shadow.pm_interval;
+		result = lv1_set_lpm_interval(lpm_priv->lpm_id, 0, 0, &val);
+		if (result) {
+			val = 0;
+			dev_dbg(sbd_core(), "%s:%u: lv1 set_inteval failed: "
+				"reg %u, %s\n", __func__, __LINE__, reg,
+				ps3_result(result));
+		}
+		return (u32)val;
 	case group_control:
 		return lpm_priv->shadow.group_control;
 	case debug_bus_control:
@@ -475,10 +480,8 @@ void ps3_write_pm(u32 cpu, enum pm_reg_name reg, u32 val)
 		lpm_priv->shadow.pm_control = val;
 		break;
 	case pm_interval:
-		if (val != lpm_priv->shadow.pm_interval)
-			result = lv1_set_lpm_interval(lpm_priv->lpm_id, val,
-						   PS3_WRITE_PM_MASK, &dummy);
-		lpm_priv->shadow.pm_interval = val;
+		result = lv1_set_lpm_interval(lpm_priv->lpm_id, val,
+					      PS3_WRITE_PM_MASK, &dummy);
 		break;
 	case pm_start_stop:
 		if (val != lpm_priv->shadow.pm_start_stop)
@@ -1140,7 +1143,6 @@ int ps3_lpm_open(enum ps3_lpm_tb_type tb_type, void *tb_cache,
 
 	lpm_priv->shadow.pm_control = PS3_LPM_SHADOW_REG_INIT;
 	lpm_priv->shadow.pm_start_stop = PS3_LPM_SHADOW_REG_INIT;
-	lpm_priv->shadow.pm_interval = PS3_LPM_SHADOW_REG_INIT;
 	lpm_priv->shadow.group_control = PS3_LPM_SHADOW_REG_INIT;
 	lpm_priv->shadow.debug_bus_control = PS3_LPM_SHADOW_REG_INIT;
 
diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c
index c3c3aba3ffce303c43f1b2fc527569a7499cd31d..d4f6f960dd18d1ea22c52de06a20aed885b67612 100644
--- a/drivers/ps3/ps3-sys-manager.c
+++ b/drivers/ps3/ps3-sys-manager.c
@@ -28,10 +28,6 @@
 
 #include "vuart.h"
 
-MODULE_AUTHOR("Sony Corporation");
-MODULE_LICENSE("GPL v2");
-MODULE_DESCRIPTION("PS3 System Manager");
-
 /**
  * ps3_sys_manager - PS3 system manager driver.
  *
@@ -142,9 +138,11 @@ enum ps3_sys_manager_attr {
 
 /**
  * enum ps3_sys_manager_event - External event type, reported by system manager.
- * @PS3_SM_EVENT_POWER_PRESSED: payload.value not used.
+ * @PS3_SM_EVENT_POWER_PRESSED: payload.value =
+ *  enum ps3_sys_manager_button_event.
  * @PS3_SM_EVENT_POWER_RELEASED: payload.value = time pressed in millisec.
- * @PS3_SM_EVENT_RESET_PRESSED: payload.value not used.
+ * @PS3_SM_EVENT_RESET_PRESSED: payload.value =
+ *  enum ps3_sys_manager_button_event.
  * @PS3_SM_EVENT_RESET_RELEASED: payload.value = time pressed in millisec.
  * @PS3_SM_EVENT_THERMAL_ALERT: payload.value = thermal zone id.
  * @PS3_SM_EVENT_THERMAL_CLEARED: payload.value = thermal zone id.
@@ -161,6 +159,17 @@ enum ps3_sys_manager_event {
 	/* no info on controller events */
 };
 
+/**
+ * enum ps3_sys_manager_button_event - Button event payload values.
+ * @PS3_SM_BUTTON_EVENT_HARD: Hardware generated event.
+ * @PS3_SM_BUTTON_EVENT_SOFT: Software generated event.
+ */
+
+enum ps3_sys_manager_button_event {
+	PS3_SM_BUTTON_EVENT_HARD = 0,
+	PS3_SM_BUTTON_EVENT_SOFT = 1,
+};
+
 /**
  * enum ps3_sys_manager_next_op - Operation to perform after lpar is destroyed.
  */
@@ -181,7 +190,9 @@ enum ps3_sys_manager_next_op {
  * @PS3_SM_WAKE_P_O_R: Power on reset.
  *
  * Additional wakeup sources when specifying PS3_SM_NEXT_OP_SYS_SHUTDOWN.
- * System will always wake from the PS3_SM_WAKE_DEFAULT sources.
+ * The system will always wake from the PS3_SM_WAKE_DEFAULT sources.
+ * Sources listed here are the only ones available to guests in the
+ * other-os lpar.
  */
 
 enum ps3_sys_manager_wake_source {
@@ -189,7 +200,7 @@ enum ps3_sys_manager_wake_source {
 	PS3_SM_WAKE_DEFAULT   = 0,
 	PS3_SM_WAKE_RTC       = 0x00000040,
 	PS3_SM_WAKE_RTC_ERROR = 0x00000080,
-	PS3_SM_WAKE_P_O_R     = 0x10000000,
+	PS3_SM_WAKE_P_O_R     = 0x80000000,
 };
 
 /**
@@ -418,8 +429,10 @@ static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev)
 
 	switch (event.type) {
 	case PS3_SM_EVENT_POWER_PRESSED:
-		dev_dbg(&dev->core, "%s:%d: POWER_PRESSED\n",
-			__func__, __LINE__);
+		dev_dbg(&dev->core, "%s:%d: POWER_PRESSED (%s)\n",
+			__func__, __LINE__,
+			(event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft"
+			: "hard"));
 		ps3_sm_force_power_off = 1;
 		/*
 		 * A memory barrier is use here to sync memory since
@@ -434,8 +447,10 @@ static int ps3_sys_manager_handle_event(struct ps3_system_bus_device *dev)
 			__func__, __LINE__, event.value);
 		break;
 	case PS3_SM_EVENT_RESET_PRESSED:
-		dev_dbg(&dev->core, "%s:%d: RESET_PRESSED\n",
-			__func__, __LINE__);
+		dev_dbg(&dev->core, "%s:%d: RESET_PRESSED (%s)\n",
+			__func__, __LINE__,
+			(event.value == PS3_SM_BUTTON_EVENT_SOFT ? "soft"
+			: "hard"));
 		ps3_sm_force_power_off = 0;
 		/*
 		 * A memory barrier is use here to sync memory since
@@ -622,7 +637,7 @@ static void ps3_sys_manager_final_restart(struct ps3_system_bus_device *dev)
 	ps3_vuart_cancel_async(dev);
 
 	ps3_sys_manager_send_attr(dev, 0);
-	ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_LPAR_REBOOT,
+	ps3_sys_manager_send_next_op(dev, PS3_SM_NEXT_OP_SYS_REBOOT,
 		PS3_SM_WAKE_DEFAULT);
 	ps3_sys_manager_send_request_shutdown(dev);
 
@@ -699,4 +714,7 @@ static int __init ps3_sys_manager_init(void)
 module_init(ps3_sys_manager_init);
 /* Module remove not supported. */
 
+MODULE_AUTHOR("Sony Corporation");
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("PS3 System Manager");
 MODULE_ALIAS(PS3_MODULE_ALIAS_SYSTEM_MANAGER);
diff --git a/include/asm-powerpc/systbl.h b/include/asm-powerpc/systbl.h
index e996521fb3a686d09f128db627e2bd1d370428b9..ae7085c65692136cf7affb8cfdc25dcec8151431 100644
--- a/include/asm-powerpc/systbl.h
+++ b/include/asm-powerpc/systbl.h
@@ -309,8 +309,10 @@ SYSCALL_SPU(getcpu)
 COMPAT_SYS(epoll_pwait)
 COMPAT_SYS_SPU(utimensat)
 COMPAT_SYS_SPU(signalfd)
-SYSCALL(ni_syscall)
+SYSCALL_SPU(timerfd_create)
 SYSCALL_SPU(eventfd)
 COMPAT_SYS_SPU(sync_file_range2)
 COMPAT_SYS(fallocate)
 SYSCALL(subpage_prot)
+COMPAT_SYS_SPU(timerfd_settime)
+COMPAT_SYS_SPU(timerfd_gettime)
diff --git a/include/asm-powerpc/unistd.h b/include/asm-powerpc/unistd.h
index fedc4b8e49e246372e0d188046ff00bcb4b37204..ce91bb662063401f054b34fbbdd09aee73241673 100644
--- a/include/asm-powerpc/unistd.h
+++ b/include/asm-powerpc/unistd.h
@@ -328,15 +328,17 @@
 #define __NR_epoll_pwait	303
 #define __NR_utimensat		304
 #define __NR_signalfd		305
-#define __NR_timerfd		306
+#define __NR_timerfd_create	306
 #define __NR_eventfd		307
 #define __NR_sync_file_range2	308
 #define __NR_fallocate		309
 #define __NR_subpage_prot	310
+#define __NR_timerfd_settime	311
+#define __NR_timerfd_gettime	312
 
 #ifdef __KERNEL__
 
-#define __NR_syscalls		311
+#define __NR_syscalls		313
 
 #define __NR__exit __NR_exit
 #define NR_syscalls	__NR_syscalls
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index ad4c5a1bc9d658daab08ca0825d55cb728e1b8a2..37e4756b6b2df2e0093133f5153ebdd34ae84864 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -125,6 +125,8 @@ extern __inline__ int get_order(unsigned long size)
 	return 32 - lz;
 }
 
+typedef struct page *pgtable_t;
+
 #endif /* __ASSEMBLY__ */
 
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \