Merge branch 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'for-2.6.25' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (69 commits)
  [POWERPC] Add SPE registers to core dumps
  [POWERPC] Use regset code for compat PTRACE_*REGS* calls
  [POWERPC] Use generic compat_sys_ptrace
  [POWERPC] Use generic compat_ptrace_request
  [POWERPC] Use generic ptrace peekdata/pokedata
  [POWERPC] Use regset code for PTRACE_*REGS* requests
  [POWERPC] Switch to generic compat_binfmt_elf code
  [POWERPC] Switch to using user_regset-based core dumps
  [POWERPC] Add user_regset compat support
  [POWERPC] Add user_regset_view definitions
  [POWERPC] Use user_regset accessors for GPRs
  [POWERPC] ptrace accessors for special regs MSR and TRAP
  [POWERPC] Use user_regset accessors for SPE regs
  [POWERPC] Use user_regset accessors for altivec regs
  [POWERPC] Use user_regset accessors for FP regs
  [POWERPC] mpc52xx: fix compile error introduce when rebasing patch
  [POWERPC] 4xx: PCIe indirect DCR spinlock fix.
  [POWERPC] Add missing native dcr dcr_ind_lock spinlock
  [POWERPC] 4xx: Fix offset value on Warp board
  [POWERPC] 4xx: Add 440EPx Sequoia ehci dts entry
  ...

68 files changed, 1516 insertions, 725 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index cf030b00441..8dcac0b22d6 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -97,6 +97,7 @@ config EARLY_PRINTK
 config COMPAT
 	bool
 	default y if PPC64
+	select COMPAT_BINFMT_ELF
 
 config SYSVIPC_COMPAT
 	bool
@@ -438,25 +439,6 @@ config WANT_DEVICE_TREE
 	bool
 	default n
 
-config DEVICE_TREE
-	string "Static device tree source file"
-	depends on WANT_DEVICE_TREE
-	help
-	  This specifies the device tree source (.dts) file to be
-	  compiled and included when building the bootwrapper.  If a
-	  relative filename is given, then it will be relative to
-	  arch/powerpc/boot/dts.  If you are not using the bootwrapper,
-	  or do not need to build a dts into the bootwrapper, this
-	  field is ignored.
-
-	  For example, this is required when building a cuImage target
-	  for an older U-Boot, which cannot pass a device tree itself.
-	  Such a kernel will not work with a newer U-Boot that tries to
-	  pass a device tree (unless you tell it not to).  If your U-Boot
-	  does not mention a device tree in "help bootm", then use the
-	  cuImage target and specify a device tree here.  Otherwise, use
-	  the uImage target and leave this field blank.
-
 endmenu
 
 config ISA_DMA_API
@@ -512,7 +494,7 @@ config PCI
 	bool "PCI support" if 40x || CPM2 || PPC_83xx || PPC_85xx || PPC_86xx \
 		|| PPC_MPC52xx || (EMBEDDED && (PPC_PSERIES || PPC_ISERIES)) \
 		|| PPC_PS3 || 44x
-	default y if !40x && !CPM2 && !8xx && !PPC_83xx \
+	default y if !40x && !CPM2 && !8xx && !PPC_MPC512x && !PPC_83xx \
 		&& !PPC_85xx && !PPC_86xx
 	default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 	default PCI_QSPAN if !4xx && !CPM2 && 8xx
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index f70df9b64f8..6845482f009 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -151,14 +151,11 @@ core-$(CONFIG_XMON)		+= arch/powerpc/xmon/
 drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/
 
 # Default to zImage, override when needed
-defaultimage-y			:= zImage
-defaultimage-$(CONFIG_DEFAULT_UIMAGE) := uImage
-KBUILD_IMAGE := $(defaultimage-y)
-all: $(KBUILD_IMAGE)
+all: zImage
 
 CPPFLAGS_vmlinux.lds	:= -Upowerpc
 
-BOOT_TARGETS = zImage zImage.initrd uImage
+BOOT_TARGETS = zImage zImage.initrd uImage treeImage.% cuImage.%
 
 PHONY += $(BOOT_TARGETS)
 
@@ -180,7 +177,7 @@ define archhelp
 endef
 
 install: vdso_install
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(KBUILD_IMAGE) install
+	$(Q)$(MAKE) $(build)=$(boot) install
 
 vdso_install:
 ifeq ($(CONFIG_PPC64),y)
diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 122a2707899..49797a45416 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -60,8 +60,9 @@ src-wlib := string.S crt0.S stdio.c main.c \
 src-plat := of.c cuboot-52xx.c cuboot-824x.c cuboot-83xx.c cuboot-85xx.c holly.c \
 		cuboot-ebony.c treeboot-ebony.c prpmc2800.c \
 		ps3-head.S ps3-hvcall.S ps3.c treeboot-bamboo.c cuboot-8xx.c \
-		cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c cuboot-bamboo.c \
-		fixed-head.S ep88xc.c cuboot-hpc2.c ep405.c cuboot-taishan.c \
+		cuboot-pq2.c cuboot-sequoia.c treeboot-walnut.c \
+		cuboot-bamboo.c cuboot-mpc7448hpc2.c cuboot-taishan.c \
+		fixed-head.S ep88xc.c ep405.c \
 		cuboot-katmai.c cuboot-rainier.c redboot-8xx.c ep8248e.c \
 		cuboot-warp.c cuboot-85xx-cpm2.c
 src-boot := $(src-wlib) $(src-plat) empty.c
@@ -123,6 +124,8 @@ targets		+= $(patsubst $(obj)/%,%,$(obj-boot) wrapper.a)
 extra-y		:= $(obj)/wrapper.a $(obj-plat) $(obj)/empty.o \
 		   $(obj)/zImage.lds $(obj)/zImage.coff.lds $(obj)/zImage.ps3.lds
 
+dtstree		:= $(srctree)/$(src)/dts
+
 wrapper		:=$(srctree)/$(src)/wrapper
 wrapperbits	:= $(extra-y) $(addprefix $(obj)/,addnote hack-coff mktree dtc) \
 			$(wrapper) FORCE
@@ -181,7 +184,7 @@ quiet_cmd_wrap	= WRAP    $@
 image-$(CONFIG_PPC_PSERIES)		+= zImage.pseries
 image-$(CONFIG_PPC_MAPLE)		+= zImage.pseries
 image-$(CONFIG_PPC_IBM_CELL_BLADE)	+= zImage.pseries
-image-$(CONFIG_PPC_PS3)			+= zImage.ps3
+image-$(CONFIG_PPC_PS3)			+= zImage-dtb.ps3
 image-$(CONFIG_PPC_CELLEB)		+= zImage.pseries
 image-$(CONFIG_PPC_CHRP)		+= zImage.chrp
 image-$(CONFIG_PPC_EFIKA)		+= zImage.chrp
@@ -191,33 +194,69 @@ image-$(CONFIG_PPC_PRPMC2800)		+= zImage.prpmc2800
 image-$(CONFIG_PPC_ISERIES)		+= zImage.iseries
 image-$(CONFIG_DEFAULT_UIMAGE)		+= uImage
 
-ifneq ($(CONFIG_DEVICE_TREE),"")
-image-$(CONFIG_PPC_8xx)			+= cuImage.8xx
-image-$(CONFIG_PPC_EP88XC)		+= zImage.ep88xc
-image-$(CONFIG_EP405)			+= zImage.ep405
-image-$(CONFIG_8260)			+= cuImage.pq2
-image-$(CONFIG_EP8248E)			+= zImage.ep8248e
-image-$(CONFIG_PPC_MPC52xx)		+= cuImage.52xx
-image-$(CONFIG_STORCENTER)		+= cuImage.824x
-image-$(CONFIG_PPC_83xx)		+= cuImage.83xx
-image-$(CONFIG_PPC_85xx)		+= cuImage.85xx
-ifeq ($(CONFIG_CPM2),y)
-image-$(CONFIG_PPC_85xx)		+= cuImage.85xx-cpm2
-endif
-image-$(CONFIG_MPC7448HPC2)		+= cuImage.hpc2
+#
+# Targets which embed a device tree blob
+#
+# Theses are default targets to build images which embed device tree blobs.
+# They are only required on boards which do not have FDT support in firmware.
+# Boards with newish u-boot firmare can use the uImage target above
+#
+
+# Board ports in arch/powerpc/platform/40x/Kconfig
+image-$(CONFIG_EP405)			+= zImage-dtb.ep405
+image-$(CONFIG_WALNUT)			+= treeImage.walnut
+
+# Board ports in arch/powerpc/platform/44x/Kconfig
 image-$(CONFIG_EBONY)			+= treeImage.ebony cuImage.ebony
 image-$(CONFIG_BAMBOO)			+= treeImage.bamboo cuImage.bamboo
 image-$(CONFIG_SEQUOIA)			+= cuImage.sequoia
 image-$(CONFIG_RAINIER)			+= cuImage.rainier
-image-$(CONFIG_WALNUT)			+= treeImage.walnut
 image-$(CONFIG_TAISHAN)			+= cuImage.taishan
 image-$(CONFIG_KATMAI)			+= cuImage.katmai
 image-$(CONFIG_WARP)			+= cuImage.warp
-endif
 
-ifneq ($(CONFIG_REDBOOT),"")
-image-$(CONFIG_PPC_8xx)			+= zImage.redboot-8xx
-endif
+# Board ports in arch/powerpc/platform/8xx/Kconfig
+image-$(CONFIG_PPC_MPC86XADS)		+= cuImage.mpc866ads
+image-$(CONFIG_PPC_MPC885ADS)		+= cuImage.mpc885ads
+image-$(CONFIG_PPC_EP88XC)		+= zImage-dtb.ep88xc
+image-$(CONFIG_PPC_ADDER875)		+= cuImage.adder875-uboot \
+					   zImage-dtb.adder875-redboot
+
+# Board ports in arch/powerpc/platform/52xx/Kconfig
+image-$(CONFIG_PPC_LITE5200)		+= cuImage.lite5200 cuImage.lite5200b
+
+# Board ports in arch/powerpc/platform/82xx/Kconfig
+image-$(CONFIG_MPC8272_ADS)		+= cuImage.mpc8272ads
+image-$(CONFIG_PQ2FADS)			+= cuImage.pq2fads
+image-$(CONFIG_EP8248E)			+= zImage-dtb.ep8248e
+
+# Board ports in arch/powerpc/platform/83xx/Kconfig
+image-$(CONFIG_MPC832x_MDS)		+= cuImage.mpc832x_mds
+image-$(CONFIG_MPC832x_RDB)		+= cuImage.mpc832x_rdb
+image-$(CONFIG_MPC834x_ITX)		+= cuImage.mpc8349emitx \
+					   cuImage.mpc8349emitxgp
+image-$(CONFIG_MPC834x_MDS)		+= cuImage.mpc834x_mds
+image-$(CONFIG_MPC836x_MDS)		+= cuImage.mpc836x_mds
+
+# Board ports in arch/powerpc/platform/85xx/Kconfig
+image-$(CONFIG_MPC8540_ADS)		+= cuImage.mpc8540ads
+image-$(CONFIG_MPC8560_ADS)		+= cuImage.mpc8560ads
+image-$(CONFIG_MPC85xx_CDS)		+= cuImage.mpc8541cds \
+					   cuImage.mpc8548cds \
+					   cuImage.mpc8555cds
+image-$(CONFIG_MPC85xx_MDS)		+= cuImage.mpc8568mds
+image-$(CONFIG_MPC85xx_DS)		+= cuImage.mpc8544ds \
+					   cuImage.mpc8572ds
+image-$(CONFIG_TQM8540)			+= cuImage.tqm8540
+image-$(CONFIG_TQM8541)			+= cuImage.tqm8541
+image-$(CONFIG_TQM8555)			+= cuImage.tqm8555
+image-$(CONFIG_TQM8560)			+= cuImage.tqm8560
+image-$(CONFIG_SBC8548)			+= cuImage.tqm8548
+image-$(CONFIG_SBC8560)			+= cuImage.tqm8560
+
+# Board ports in arch/powerpc/platform/embedded6xx/Kconfig
+image-$(CONFIG_STORCENTER)		+= cuImage.storcenter
+image-$(CONFIG_MPC7448HPC2)		+= cuImage.mpc7448hpc2
 
 # For 32-bit powermacs, build the COFF and miboot images
 # as well as the ELF images.
@@ -233,24 +272,20 @@ targets	+= $(image-y) $(initrd-y)
 
 $(addprefix $(obj)/, $(initrd-y)): $(obj)/ramdisk.image.gz
 
-# If CONFIG_WANT_DEVICE_TREE is set and CONFIG_DEVICE_TREE isn't an
-# empty string, define 'dts' to be path to the dts
-# CONFIG_DEVICE_TREE will have "" around it, make sure to strip them
-ifeq ($(CONFIG_WANT_DEVICE_TREE),y)
-ifneq ($(CONFIG_DEVICE_TREE),"")
-dts = $(if $(shell echo $(CONFIG_DEVICE_TREE) | grep '^/'),\
-	,$(srctree)/$(src)/dts/)$(CONFIG_DEVICE_TREE:"%"=%)
-endif
-endif
-
 # Don't put the ramdisk on the pattern rule; when its missing make will try
 # the pattern rule with less dependencies that also matches (even with the
 # hard dependency listed).
-$(obj)/zImage.initrd.%: vmlinux $(wrapperbits) $(dts)
-	$(call if_changed,wrap,$*,$(dts),,$(obj)/ramdisk.image.gz)
+$(obj)/zImage.initrd.%: vmlinux $(wrapperbits)
+	$(call if_changed,wrap,$*,,,$(obj)/ramdisk.image.gz)
 
-$(obj)/zImage.%: vmlinux $(wrapperbits) $(dts)
-	$(call if_changed,wrap,$*,$(dts))
+$(obj)/zImage.%: vmlinux $(wrapperbits)
+	$(call if_changed,wrap,$*)
+
+$(obj)/zImage-dtb.initrd.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
+	$(call if_changed,wrap,$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
+
+$(obj)/zImage-dtb.%: vmlinux $(wrapperbits) $(dtstree)/%.dts
+	$(call if_changed,wrap,$*,$(dtstree)/$*.dts)
 
 # This cannot be in the root of $(src) as the zImage rule always adds a $(obj)
 # prefix
@@ -260,24 +295,17 @@ $(obj)/vmlinux.strip: vmlinux
 $(obj)/zImage.iseries: vmlinux
 	$(STRIP) -s -R .comment $< -o $@
 
-$(obj)/zImage.ps3: vmlinux  $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts
-	$(STRIP) -s -R .comment $< -o vmlinux.strip
-	$(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,)
-
-$(obj)/zImage.initrd.ps3: vmlinux  $(wrapper) $(wrapperbits) $(srctree)/$(src)/dts/ps3.dts $(obj)/ramdisk.image.gz
-	$(call cmd,wrap,ps3,$(srctree)/$(src)/dts/ps3.dts,,$(obj)/ramdisk.image.gz)
-
 $(obj)/uImage: vmlinux $(wrapperbits)
 	$(call if_changed,wrap,uboot)
 
-$(obj)/cuImage.%: vmlinux $(dts) $(wrapperbits)
-	$(call if_changed,wrap,cuboot-$*,$(dts))
+$(obj)/cuImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
+	$(call if_changed,wrap,cuboot-$*,$(dtstree)/$*.dts)
 
-$(obj)/treeImage.initrd.%: vmlinux $(dts) $(wrapperbits)
-	$(call if_changed,wrap,treeboot-$*,$(dts),,$(obj)/ramdisk.image.gz)
+$(obj)/treeImage.initrd.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
+	$(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts,,$(obj)/ramdisk.image.gz)
 
-$(obj)/treeImage.%: vmlinux $(dts) $(wrapperbits)
-	$(call if_changed,wrap,treeboot-$*,$(dts))
+$(obj)/treeImage.%: vmlinux $(dtstree)/%.dts $(wrapperbits)
+	$(call if_changed,wrap,treeboot-$*,$(dtstree)/$*.dts)
 
 # If there isn't a platform selected then just strip the vmlinux.
 ifeq (,$(image-y))
diff --git a/arch/powerpc/boot/cuboot-hpc2.c b/arch/powerpc/boot/cuboot-mpc7448hpc2.c
index 1b8953259d7..1b8953259d7 100644
--- a/arch/powerpc/boot/cuboot-hpc2.c
+++ b/arch/powerpc/boot/cuboot-mpc7448hpc2.c
diff --git a/arch/powerpc/boot/dts/adder875-redboot.dts b/arch/powerpc/boot/dts/adder875-redboot.dts
index 930bfb3894e..28e9cd3d7a2 100644
--- a/arch/powerpc/boot/dts/adder875-redboot.dts
+++ b/arch/powerpc/boot/dts/adder875-redboot.dts
@@ -151,6 +151,7 @@
 				compatible = "fsl,mpc875-brg",
 				             "fsl,cpm1-brg",
 				             "fsl,cpm-brg";
+				clock-frequency = <50000000>;
 				reg = <0x9f0 0x10>;
 			};
 
diff --git a/arch/powerpc/boot/dts/adder875-uboot.dts b/arch/powerpc/boot/dts/adder875-uboot.dts
index 0197242dacf..54fb60ec03e 100644
--- a/arch/powerpc/boot/dts/adder875-uboot.dts
+++ b/arch/powerpc/boot/dts/adder875-uboot.dts
@@ -150,6 +150,7 @@
 				compatible = "fsl,mpc875-brg",
 				             "fsl,cpm1-brg",
 				             "fsl,cpm-brg";
+				clock-frequency = <50000000>;
 				reg = <0x9f0 0x10>;
 			};
 
diff --git a/arch/powerpc/boot/dts/mpc5121ads.dts b/arch/powerpc/boot/dts/mpc5121ads.dts
new file mode 100644
index 00000000000..94ad7b2b241
--- /dev/null
+++ b/arch/powerpc/boot/dts/mpc5121ads.dts
@@ -0,0 +1,122 @@
+/*
+ * MPC5121E MDS Device Tree Source
+ *
+ * Copyright 2007 Freescale Semiconductor Inc.
+ *
+ * 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.
+ */
+
+/dts-v1/;
+
+/ {
+	model = "mpc5121ads";
+	compatible = "fsl,mpc5121ads";
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		PowerPC,5121@0 {
+			device_type = "cpu";
+			reg = <0>;
+			d-cache-line-size = <0x20>;	// 32 bytes
+			i-cache-line-size = <0x20>;	// 32 bytes
+			d-cache-size = <0x8000>;	// L1, 32K
+			i-cache-size = <0x8000>;	// L1, 32K
+			timebase-frequency = <49500000>;// 49.5 MHz (csb/4)
+			bus-frequency = <198000000>;	// 198 MHz csb bus
+			clock-frequency = <396000000>;	// 396 MHz ppc core
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x00000000 0x10000000>;	// 256MB at 0
+	};
+
+	localbus@80000020 {
+		compatible = "fsl,mpc5121ads-localbus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		reg = <0x80000020 0x40>;
+
+		ranges = <0x0 0x0 0xfc000000 0x04000000
+			  0x2 0x0 0x82000000 0x00008000>;
+
+		flash@0,0 {
+			compatible = "cfi-flash";
+			reg = <0 0x0 0x4000000>;
+			bank-width = <4>;
+			device-width = <1>;
+		};
+
+		board-control@2,0 {
+			compatible = "fsl,mpc5121ads-cpld";
+			reg = <0x2 0x0 0x8000>;
+		};
+	};
+
+	soc@80000000 {
+		compatible = "fsl,mpc5121-immr";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		#interrupt-cells = <2>;
+		ranges = <0x0 0x80000000 0x400000>;
+		reg = <0x80000000 0x400000>;
+		bus-frequency = <66000000>;	// 66 MHz ips bus
+
+
+		// IPIC
+		// interrupts cell = <intr #, sense>
+		// sense values match linux IORESOURCE_IRQ_* defines:
+		// sense == 8: Level, low assertion
+		// sense == 2: Edge, high-to-low change
+		//
+		ipic: interrupt-controller@c00 {
+			compatible = "fsl,mpc5121-ipic", "fsl,ipic";
+			interrupt-controller;
+			#address-cells = <0>;
+			#interrupt-cells = <2>;
+			reg = <0xc00 0x100>;
+		};
+
+		// 512x PSCs are not 52xx PSCs compatible
+		// PSC3 serial port A aka ttyPSC0
+		serial@11300 {
+			device_type = "serial";
+			compatible = "fsl,mpc5121-psc-uart";
+			// Logical port assignment needed until driver
+			// learns to use aliases
+			port-number = <0>;
+			cell-index = <3>;
+			reg = <0x11300 0x100>;
+			interrupts = <0x28 0x8>; // actually the fifo irq
+			interrupt-parent = < &ipic >;
+		};
+
+		// PSC4 serial port B aka ttyPSC1
+		serial@11400 {
+			device_type = "serial";
+			compatible = "fsl,mpc5121-psc-uart";
+			// Logical port assignment needed until driver
+			// learns to use aliases
+			port-number = <1>;
+			cell-index = <4>;
+			reg = <0x11400 0x100>;
+			interrupts = <0x28 0x8>; // actually the fifo irq
+			interrupt-parent = < &ipic >;
+		};
+
+		pscsfifo@11f00 {
+			compatible = "fsl,mpc5121-psc-fifo";
+			reg = <0x11f00 0x100>;
+			interrupts = <0x28 0x8>;
+			interrupt-parent = < &ipic >;
+		};
+	};
+};
diff --git a/arch/powerpc/boot/dts/mpc8313erdb.dts b/arch/powerpc/boot/dts/mpc8313erdb.dts
index 2d6653fe72f..e1f0dca8ac3 100644
--- a/arch/powerpc/boot/dts/mpc8313erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8313erdb.dts
@@ -118,6 +118,10 @@
 			interrupts = <14 0x8>;
 			interrupt-parent = <&ipic>;
 			dfsrr;
+			rtc@68 {
+				compatible = "dallas,ds1339";
+				reg = <0x68>;
+			};
 		};
 
 		i2c@3100 {
diff --git a/arch/powerpc/boot/dts/mpc8315erdb.dts b/arch/powerpc/boot/dts/mpc8315erdb.dts
index b582032ba3d..d7a1ececa30 100644
--- a/arch/powerpc/boot/dts/mpc8315erdb.dts
+++ b/arch/powerpc/boot/dts/mpc8315erdb.dts
@@ -96,7 +96,7 @@
 		#address-cells = <1>;
 		#size-cells = <1>;
 		device_type = "soc";
-		compatible = "simple-bus";
+		compatible = "fsl,mpc8315-immr", "simple-bus";
 		ranges = <0 0xe0000000 0x00100000>;
 		reg = <0xe0000000 0x00000200>;
 		bus-frequency = <0>;
diff --git a/arch/powerpc/boot/dts/mpc834x_mds.dts b/arch/powerpc/boot/dts/mpc834x_mds.dts
index 7480edae85e..0199c5c548d 100644
--- a/arch/powerpc/boot/dts/mpc834x_mds.dts
+++ b/arch/powerpc/boot/dts/mpc834x_mds.dts
@@ -332,7 +332,7 @@
 				 0xc000 0x0 0x0 0x3 &ipic 23 0x8
 				 0xc000 0x0 0x0 0x4 &ipic 20 0x8>;
 		interrupt-parent = <&ipic>;
-		interrupts = <66 0x8>;
+		interrupts = <67 0x8>;
 		bus-range = <0 0>;
 		ranges = <0x02000000 0x0 0xb0000000 0xb0000000 0x0 0x10000000
 			  0x42000000 0x0 0xa0000000 0xa0000000 0x0 0x10000000
diff --git a/arch/powerpc/boot/dts/mpc8572ds.dts b/arch/powerpc/boot/dts/mpc8572ds.dts
index 813c259abbe..db37214aee3 100644
--- a/arch/powerpc/boot/dts/mpc8572ds.dts
+++ b/arch/powerpc/boot/dts/mpc8572ds.dts
@@ -42,6 +42,18 @@
 			bus-frequency = <0>;
 			clock-frequency = <0>;
 		};
+
+		PowerPC,8572@1 {
+			device_type = "cpu";
+			reg = <1>;
+			d-cache-line-size = <20>;	// 32 bytes
+			i-cache-line-size = <20>;	// 32 bytes
+			d-cache-size = <8000>;		// L1, 32K
+			i-cache-size = <8000>;		// L1, 32K
+			timebase-frequency = <0>;
+			bus-frequency = <0>;
+			clock-frequency = <0>;
+		};
 	};
 
 	memory {
diff --git a/arch/powerpc/boot/dts/mpc885ads.dts b/arch/powerpc/boot/dts/mpc885ads.dts
index 8848e637293..d84a012c2aa 100644
--- a/arch/powerpc/boot/dts/mpc885ads.dts
+++ b/arch/powerpc/boot/dts/mpc885ads.dts
@@ -166,6 +166,7 @@
 				compatible = "fsl,mpc885-brg",
 				             "fsl,cpm1-brg",
 				             "fsl,cpm-brg";
+				clock-frequency = <0>;
 				reg = <9f0 10>;
 			};
 
diff --git a/arch/powerpc/boot/dts/sequoia.dts b/arch/powerpc/boot/dts/sequoia.dts
index d9046c1adcb..5c13d46f441 100644
--- a/arch/powerpc/boot/dts/sequoia.dts
+++ b/arch/powerpc/boot/dts/sequoia.dts
@@ -138,6 +138,14 @@
 			interrupts = <15 8>;
 		};
 
+		USB0: ehci@e0000300 {
+			compatible = "ibm,usb-ehci-440epx", "usb-ehci";
+			interrupt-parent = <&UIC0>;
+			interrupts = <1a 4>;
+			reg = <0 e0000300 90 0 e0000390 70>;
+			big-endian;
+		};
+
 		POB0: opb {
 		  	compatible = "ibm,opb-440epx", "ibm,opb";
 			#address-cells = <1>;
diff --git a/arch/powerpc/boot/dts/storcenter.dts b/arch/powerpc/boot/dts/storcenter.dts
index 2204874ac5f..5893816c0bc 100644
--- a/arch/powerpc/boot/dts/storcenter.dts
+++ b/arch/powerpc/boot/dts/storcenter.dts
@@ -15,7 +15,7 @@
 
 / {
 	model = "StorCenter";
-	compatible = "storcenter";
+	compatible = "iomega,storcenter";
 	#address-cells = <1>;
 	#size-cells = <1>;
 
@@ -62,12 +62,12 @@
 			#size-cells = <0>;
 			compatible = "fsl-i2c";
 			reg = <0x3000 0x100>;
-			interrupts = <5 2>;
+			interrupts = <17 2>;
 			interrupt-parent = <&mpic>;
 
 			rtc@68 {
 				compatible = "dallas,ds1337";
-				reg = <68>;
+				reg = <0x68>;
 			};
 		};
 
@@ -78,7 +78,7 @@
 			reg = <0x4500 0x20>;
 			clock-frequency = <97553800>; /* Hz */
 			current-speed = <115200>;
-			interrupts = <9 2>;
+			interrupts = <25 2>;
 			interrupt-parent = <&mpic>;
 		};
 
@@ -89,7 +89,7 @@
 			reg = <0x4600 0x20>;
 			clock-frequency = <97553800>; /* Hz */
 			current-speed = <9600>;
-			interrupts = <10 2>;
+			interrupts = <26 2>;
 			interrupt-parent = <&mpic>;
 		};
 
@@ -136,6 +136,6 @@
 	};
 
 	chosen {
-		linux,stdout-path = "/soc/serial@4500";
+		linux,stdout-path = &serial0;
 	};
 };
diff --git a/arch/powerpc/boot/wrapper b/arch/powerpc/boot/wrapper
index 763a0c46f44..c3178155311 100755
--- a/arch/powerpc/boot/wrapper
+++ b/arch/powerpc/boot/wrapper
@@ -158,6 +158,29 @@ miboot|uboot)
 cuboot*)
     binary=y
     gzip=
+    case "$platform" in
+    *-mpc885ads|*-adder875*|*-ep88xc)
+        platformo=$object/cuboot-8xx.o
+        ;;
+    *5200*|*-motionpro)
+        platformo=$object/cuboot-52xx.o
+        ;;
+    *-pq2fads|*-ep8248e|*-mpc8272*|*-storcenter)
+        platformo=$object/cuboot-pq2.o
+        ;;
+    *-mpc824*)
+        platformo=$object/cuboot-824x.o
+        ;;
+    *-mpc83*)
+        platformo=$object/cuboot-83xx.o
+        ;;
+    *-tqm8541|*-mpc8560*|*-tqm8560|*-tqm8555*)
+        platformo=$object/cuboot-85xx-cpm2.o
+        ;;
+    *-mpc85*)
+        platformo=$object/cuboot-85xx.o
+        ;;
+    esac
     ;;
 ps3)
     platformo="$object/ps3-head.o $object/ps3-hvcall.o $object/ps3.o"
diff --git a/arch/powerpc/configs/mpc83xx_defconfig b/arch/powerpc/configs/mpc83xx_defconfig
index 31bdbf3f756..a9807f083bc 100644
--- a/arch/powerpc/configs/mpc83xx_defconfig
+++ b/arch/powerpc/configs/mpc83xx_defconfig
@@ -186,7 +186,7 @@ CONFIG_PREEMPT_NONE=y
 # CONFIG_PREEMPT is not set
 CONFIG_BINFMT_ELF=y
 # CONFIG_BINFMT_MISC is not set
-# CONFIG_MATH_EMULATION is not set
+CONFIG_MATH_EMULATION=y
 CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
 CONFIG_ARCH_FLATMEM_ENABLE=y
 CONFIG_ARCH_POPULATES_NODE_MAP=y
@@ -416,14 +416,14 @@ CONFIG_PHYLIB=y
 # MII PHY device drivers
 #
 CONFIG_MARVELL_PHY=y
-# CONFIG_DAVICOM_PHY is not set
+CONFIG_DAVICOM_PHY=y
 # 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_VITESSE_PHY=y
 # CONFIG_SMSC_PHY is not set
 # CONFIG_BROADCOM_PHY is not set
-# CONFIG_ICPLUS_PHY is not set
+CONFIG_ICPLUS_PHY=y
 # CONFIG_FIXED_PHY is not set
 # CONFIG_MDIO_BITBANG is not set
 CONFIG_NET_ETHERNET=y
@@ -436,7 +436,7 @@ CONFIG_MII=y
 CONFIG_NETDEV_1000=y
 CONFIG_GIANFAR=y
 # CONFIG_GFAR_NAPI is not set
-# CONFIG_UCC_GETH is not set
+CONFIG_UCC_GETH=y
 CONFIG_NETDEV_10000=y
 
 #
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 58dbfeff9b4..0662ae46f72 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -2,6 +2,8 @@
 # Makefile for the linux kernel.
 #
 
+CFLAGS_ptrace.o		+= -DUTS_MACHINE='"$(UTS_MACHINE)"'
+
 ifeq ($(CONFIG_PPC64),y)
 CFLAGS_prom_init.o	+= -mno-minimal-toc
 endif
@@ -15,7 +17,7 @@ obj-y				:= semaphore.o cputable.o ptrace.o syscalls.o \
 				   init_task.o process.o systbl.o idle.o \
 				   signal.o
 obj-y				+= vdso32/
-obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
+obj-$(CONFIG_PPC64)		+= setup_64.o sys_ppc32.o \
 				   signal_64.o ptrace32.o \
 				   paca.o cpu_setup_ppc970.o \
 				   cpu_setup_pa6t.o \
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index ed083feaf6f..e6e49289f78 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -22,6 +22,7 @@
 #include <linux/mman.h>
 #include <linux/mm.h>
 #include <linux/suspend.h>
+#include <linux/hrtimer.h>
 #ifdef CONFIG_PPC64
 #include <linux/time.h>
 #include <linux/hardirq.h>
@@ -312,7 +313,7 @@ int main(void)
 	DEFINE(CLOCK_REALTIME, CLOCK_REALTIME);
 	DEFINE(CLOCK_MONOTONIC, CLOCK_MONOTONIC);
 	DEFINE(NSEC_PER_SEC, NSEC_PER_SEC);
-	DEFINE(CLOCK_REALTIME_RES, TICK_NSEC);
+	DEFINE(CLOCK_REALTIME_RES, (KTIME_MONOTONIC_RES).tv64);
 
 #ifdef CONFIG_BUG
 	DEFINE(BUG_ENTRY_SIZE, sizeof(struct bug_entry));
diff --git a/arch/powerpc/kernel/binfmt_elf32.c b/arch/powerpc/kernel/binfmt_elf32.c
deleted file mode 100644
index 1d45d7782d4..00000000000
--- a/arch/powerpc/kernel/binfmt_elf32.c
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * binfmt_elf32.c: Support 32-bit PPC ELF binaries on Power3 and followons.
- * based on the SPARC64 version.
- * Copyright (C) 1995, 1996, 1997, 1998 David S. Miller	(davem@redhat.com)
- * Copyright (C) 1995, 1996, 1997, 1998 Jakub Jelinek	(jj@ultra.linux.cz)
- *
- * Copyright (C) 2000,2001 Ken Aaker (kdaaker@rchland.vnet.ibm.com), IBM Corp
- * Copyright (C) 2001 Anton Blanchard (anton@au.ibm.com), IBM
- *
- * 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.
- */
-
-#include <asm/processor.h>
-#include <linux/module.h>
-#include <linux/compat.h>
-#include <linux/elfcore-compat.h>
-
-#undef	ELF_ARCH
-#undef	ELF_CLASS
-#define ELF_CLASS	ELFCLASS32
-#define ELF_ARCH	EM_PPC
-
-#undef	elfhdr
-#undef	elf_phdr
-#undef	elf_note
-#undef	elf_addr_t
-#define elfhdr		elf32_hdr
-#define elf_phdr	elf32_phdr
-#define elf_note	elf32_note
-#define elf_addr_t	Elf32_Off
-
-#define elf_prstatus	compat_elf_prstatus
-#define elf_prpsinfo	compat_elf_prpsinfo
-
-#define elf_core_copy_regs compat_elf_core_copy_regs
-static inline void compat_elf_core_copy_regs(compat_elf_gregset_t *elf_regs,
-					     struct pt_regs *regs)
-{
-	PPC_ELF_CORE_COPY_REGS((*elf_regs), regs);
-}
-
-#define elf_core_copy_task_regs compat_elf_core_copy_task_regs
-static int compat_elf_core_copy_task_regs(struct task_struct *tsk,
-					  compat_elf_gregset_t *elf_regs)
-{
-	struct pt_regs *regs = tsk->thread.regs;
-	if (regs)
-		compat_elf_core_copy_regs(elf_regs, regs);
-	return 1;
-}
-
-#include <linux/time.h>
-
-#undef cputime_to_timeval
-#define cputime_to_timeval cputime_to_compat_timeval
-static __inline__ void
-cputime_to_compat_timeval(const cputime_t cputime, struct compat_timeval *value)
-{
-	unsigned long jiffies = cputime_to_jiffies(cputime);
-	value->tv_usec = (jiffies % HZ) * (1000000L / HZ);
-	value->tv_sec = jiffies / HZ;
-}
-
-#define init_elf_binfmt init_elf32_binfmt
-
-#include "../../../fs/binfmt_elf.c"
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index a4c2771b5e6..2a8f5cc5184 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -959,6 +959,9 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.icache_bsize		= 32,
 		.dcache_bsize		= 32,
 		.cpu_setup		= __setup_cpu_603,
+		.num_pmcs		= 4,
+		.oprofile_cpu_type	= "ppc/e300",
+		.oprofile_type		= PPC_OPROFILE_FSL_EMB,
 		.platform		= "ppc603",
 	},
 	{	/* e300c4 (e300c1, plus one IU) */
@@ -971,6 +974,9 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.dcache_bsize		= 32,
 		.cpu_setup		= __setup_cpu_603,
 		.machine_check		= machine_check_generic,
+		.num_pmcs		= 4,
+		.oprofile_cpu_type	= "ppc/e300",
+		.oprofile_type		= PPC_OPROFILE_FSL_EMB,
 		.platform		= "ppc603",
 	},
 	{	/* default match, we assume split I/D cache & TB (non-601)... */
@@ -1435,7 +1441,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.dcache_bsize		= 32,
 		.num_pmcs		= 4,
 		.oprofile_cpu_type	= "ppc/e500",
-		.oprofile_type		= PPC_OPROFILE_BOOKE,
+		.oprofile_type		= PPC_OPROFILE_FSL_EMB,
 		.machine_check		= machine_check_e500,
 		.platform		= "ppc8540",
 	},
@@ -1453,7 +1459,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.dcache_bsize		= 32,
 		.num_pmcs		= 4,
 		.oprofile_cpu_type	= "ppc/e500",
-		.oprofile_type		= PPC_OPROFILE_BOOKE,
+		.oprofile_type		= PPC_OPROFILE_FSL_EMB,
 		.machine_check		= machine_check_e500,
 		.platform		= "ppc8548",
 	},
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 76b862bd1fe..61dd17449dd 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -36,7 +36,8 @@ static struct legacy_serial_info {
 static struct __initdata of_device_id parents[] = {
 	{.type = "soc",},
 	{.type = "tsi-bridge",},
-	{.type = "opb", .compatible = "ibm,opb",},
+	{.type = "opb", },
+	{.compatible = "ibm,opb",},
 	{.compatible = "simple-bus",},
 	{.compatible = "wrs,epld-localbus",},
 };
diff --git a/arch/powerpc/kernel/pmc.c b/arch/powerpc/kernel/pmc.c
index ea04e0ab3f2..0516e2d3e02 100644
--- a/arch/powerpc/kernel/pmc.c
+++ b/arch/powerpc/kernel/pmc.c
@@ -26,7 +26,7 @@
 
 static void dummy_perf(struct pt_regs *regs)
 {
-#if defined(CONFIG_FSL_BOOKE) && !defined(CONFIG_E200)
+#if defined(CONFIG_FSL_EMB_PERFMON)
 	mtpmr(PMRN_PMGC0, mfpmr(PMRN_PMGC0) & ~PMGC0_PMIE);
 #elif defined(CONFIG_PPC64) || defined(CONFIG_6xx)
 	if (cur_cpu_spec->pmc_type == PPC_PMC_IBM)
diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 8b056d2295c..7673e986573 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -21,6 +21,8 @@
 #include <linux/smp.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
+#include <linux/regset.h>
+#include <linux/elf.h>
 #include <linux/user.h>
 #include <linux/security.h>
 #include <linux/signal.h>
@@ -58,20 +60,38 @@
 #define PT_MAX_PUT_REG	PT_CCR
 #endif
 
+static unsigned long get_user_msr(struct task_struct *task)
+{
+	return task->thread.regs->msr | task->thread.fpexc_mode;
+}
+
+static int set_user_msr(struct task_struct *task, unsigned long msr)
+{
+	task->thread.regs->msr &= ~MSR_DEBUGCHANGE;
+	task->thread.regs->msr |= msr & MSR_DEBUGCHANGE;
+	return 0;
+}
+
+/*
+ * We prevent mucking around with the reserved area of trap
+ * which are used internally by the kernel.
+ */
+static int set_user_trap(struct task_struct *task, unsigned long trap)
+{
+	task->thread.regs->trap = trap & 0xfff0;
+	return 0;
+}
+
 /*
  * Get contents of register REGNO in task TASK.
  */
 unsigned long ptrace_get_reg(struct task_struct *task, int regno)
 {
-	unsigned long tmp = 0;
-
 	if (task->thread.regs == NULL)
 		return -EIO;
 
-	if (regno == PT_MSR) {
-		tmp = ((unsigned long *)task->thread.regs)[PT_MSR];
-		return tmp | task->thread.fpexc_mode;
-	}
+	if (regno == PT_MSR)
+		return get_user_msr(task);
 
 	if (regno < (sizeof(struct pt_regs) / sizeof(unsigned long)))
 		return ((unsigned long *)task->thread.regs)[regno];
@@ -87,40 +107,134 @@ int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data)
 	if (task->thread.regs == NULL)
 		return -EIO;
 
-	if (regno <= PT_MAX_PUT_REG || regno == PT_TRAP) {
-		if (regno == PT_MSR)
-			data = (data & MSR_DEBUGCHANGE)
-				| (task->thread.regs->msr & ~MSR_DEBUGCHANGE);
-		/* We prevent mucking around with the reserved area of trap
-		 * which are used internally by the kernel
-		 */
-		if (regno == PT_TRAP)
-			data &= 0xfff0;
+	if (regno == PT_MSR)
+		return set_user_msr(task, data);
+	if (regno == PT_TRAP)
+		return set_user_trap(task, data);
+
+	if (regno <= PT_MAX_PUT_REG) {
 		((unsigned long *)task->thread.regs)[regno] = data;
 		return 0;
 	}
 	return -EIO;
 }
 
+static int gpr_get(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
+{
+	int ret;
+
+	if (target->thread.regs == NULL)
+		return -EIO;
+
+	CHECK_FULL_REGS(target->thread.regs);
+
+	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				  target->thread.regs,
+				  0, offsetof(struct pt_regs, msr));
+	if (!ret) {
+		unsigned long msr = get_user_msr(target);
+		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &msr,
+					  offsetof(struct pt_regs, msr),
+					  offsetof(struct pt_regs, msr) +
+					  sizeof(msr));
+	}
+
+	BUILD_BUG_ON(offsetof(struct pt_regs, orig_gpr3) !=
+		     offsetof(struct pt_regs, msr) + sizeof(long));
+
+	if (!ret)
+		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+					  &target->thread.regs->orig_gpr3,
+					  offsetof(struct pt_regs, orig_gpr3),
+					  sizeof(struct pt_regs));
+	if (!ret)
+		ret = user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+					       sizeof(struct pt_regs), -1);
+
+	return ret;
+}
+
+static int gpr_set(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	unsigned long reg;
+	int ret;
+
+	if (target->thread.regs == NULL)
+		return -EIO;
+
+	CHECK_FULL_REGS(target->thread.regs);
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 target->thread.regs,
+				 0, PT_MSR * sizeof(reg));
 
-static int get_fpregs(void __user *data, struct task_struct *task,
-		      int has_fpscr)
+	if (!ret && count > 0) {
+		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &reg,
+					 PT_MSR * sizeof(reg),
+					 (PT_MSR + 1) * sizeof(reg));
+		if (!ret)
+			ret = set_user_msr(target, reg);
+	}
+
+	BUILD_BUG_ON(offsetof(struct pt_regs, orig_gpr3) !=
+		     offsetof(struct pt_regs, msr) + sizeof(long));
+
+	if (!ret)
+		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+					 &target->thread.regs->orig_gpr3,
+					 PT_ORIG_R3 * sizeof(reg),
+					 (PT_MAX_PUT_REG + 1) * sizeof(reg));
+
+	if (PT_MAX_PUT_REG + 1 < PT_TRAP && !ret)
+		ret = user_regset_copyin_ignore(
+			&pos, &count, &kbuf, &ubuf,
+			(PT_MAX_PUT_REG + 1) * sizeof(reg),
+			PT_TRAP * sizeof(reg));
+
+	if (!ret && count > 0) {
+		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &reg,
+					 PT_TRAP * sizeof(reg),
+					 (PT_TRAP + 1) * sizeof(reg));
+		if (!ret)
+			ret = set_user_trap(target, reg);
+	}
+
+	if (!ret)
+		ret = user_regset_copyin_ignore(
+			&pos, &count, &kbuf, &ubuf,
+			(PT_TRAP + 1) * sizeof(reg), -1);
+
+	return ret;
+}
+
+static int fpr_get(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
 {
-	unsigned int count = has_fpscr ? 33 : 32;
+	flush_fp_to_thread(target);
 
-	if (copy_to_user(data, task->thread.fpr, count * sizeof(double)))
-		return -EFAULT;
-	return 0;
+	BUILD_BUG_ON(offsetof(struct thread_struct, fpscr) !=
+		     offsetof(struct thread_struct, fpr[32]));
+
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   &target->thread.fpr, 0, -1);
 }
 
-static int set_fpregs(void __user *data, struct task_struct *task,
-		      int has_fpscr)
+static int fpr_set(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
 {
-	unsigned int count = has_fpscr ? 33 : 32;
+	flush_fp_to_thread(target);
 
-	if (copy_from_user(task->thread.fpr, data, count * sizeof(double)))
-		return -EFAULT;
-	return 0;
+	BUILD_BUG_ON(offsetof(struct thread_struct, fpscr) !=
+		     offsetof(struct thread_struct, fpr[32]));
+
+	return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				  &target->thread.fpr, 0, -1);
 }
 
 
@@ -138,56 +252,74 @@ static int set_fpregs(void __user *data, struct task_struct *task,
  * (combined (32- and 64-bit) gdb.
  */
 
-/*
- * Get contents of AltiVec register state in task TASK
- */
-static int get_vrregs(unsigned long __user *data, struct task_struct *task)
+static int vr_active(struct task_struct *target,
+		     const struct user_regset *regset)
 {
-	unsigned long regsize;
+	flush_altivec_to_thread(target);
+	return target->thread.used_vr ? regset->n : 0;
+}
 
-	/* copy AltiVec registers VR[0] .. VR[31] */
-	regsize = 32 * sizeof(vector128);
-	if (copy_to_user(data, task->thread.vr, regsize))
-		return -EFAULT;
-	data += (regsize / sizeof(unsigned long));
+static int vr_get(struct task_struct *target, const struct user_regset *regset,
+		  unsigned int pos, unsigned int count,
+		  void *kbuf, void __user *ubuf)
+{
+	int ret;
 
-	/* copy VSCR */
-	regsize = 1 * sizeof(vector128);
-	if (copy_to_user(data, &task->thread.vscr, regsize))
-		return -EFAULT;
-	data += (regsize / sizeof(unsigned long));
+	flush_altivec_to_thread(target);
 
-	/* copy VRSAVE */
-	if (put_user(task->thread.vrsave, (u32 __user *)data))
-		return -EFAULT;
+	BUILD_BUG_ON(offsetof(struct thread_struct, vscr) !=
+		     offsetof(struct thread_struct, vr[32]));
 
-	return 0;
+	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				  &target->thread.vr, 0,
+				  33 * sizeof(vector128));
+	if (!ret) {
+		/*
+		 * Copy out only the low-order word of vrsave.
+		 */
+		union {
+			elf_vrreg_t reg;
+			u32 word;
+		} vrsave;
+		memset(&vrsave, 0, sizeof(vrsave));
+		vrsave.word = target->thread.vrsave;
+		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf, &vrsave,
+					  33 * sizeof(vector128), -1);
+	}
+
+	return ret;
 }
 
-/*
- * Write contents of AltiVec register state into task TASK.
- */
-static int set_vrregs(struct task_struct *task, unsigned long __user *data)
+static int vr_set(struct task_struct *target, const struct user_regset *regset,
+		  unsigned int pos, unsigned int count,
+		  const void *kbuf, const void __user *ubuf)
 {
-	unsigned long regsize;
+	int ret;
 
-	/* copy AltiVec registers VR[0] .. VR[31] */
-	regsize = 32 * sizeof(vector128);
-	if (copy_from_user(task->thread.vr, data, regsize))
-		return -EFAULT;
-	data += (regsize / sizeof(unsigned long));
+	flush_altivec_to_thread(target);
 
-	/* copy VSCR */
-	regsize = 1 * sizeof(vector128);
-	if (copy_from_user(&task->thread.vscr, data, regsize))
-		return -EFAULT;
-	data += (regsize / sizeof(unsigned long));
+	BUILD_BUG_ON(offsetof(struct thread_struct, vscr) !=
+		     offsetof(struct thread_struct, vr[32]));
 
-	/* copy VRSAVE */
-	if (get_user(task->thread.vrsave, (u32 __user *)data))
-		return -EFAULT;
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &target->thread.vr, 0, 33 * sizeof(vector128));
+	if (!ret && count > 0) {
+		/*
+		 * We use only the first word of vrsave.
+		 */
+		union {
+			elf_vrreg_t reg;
+			u32 word;
+		} vrsave;
+		memset(&vrsave, 0, sizeof(vrsave));
+		vrsave.word = target->thread.vrsave;
+		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf, &vrsave,
+					 33 * sizeof(vector128), -1);
+		if (!ret)
+			target->thread.vrsave = vrsave.word;
+	}
 
-	return 0;
+	return ret;
 }
 #endif /* CONFIG_ALTIVEC */
 
@@ -203,57 +335,273 @@ static int set_vrregs(struct task_struct *task, unsigned long __user *data)
  * }
  */
 
-/*
- * Get contents of SPE register state in task TASK.
- */
-static int get_evrregs(unsigned long *data, struct task_struct *task)
+static int evr_active(struct task_struct *target,
+		      const struct user_regset *regset)
 {
-	int i;
+	flush_spe_to_thread(target);
+	return target->thread.used_spe ? regset->n : 0;
+}
 
-	if (!access_ok(VERIFY_WRITE, data, 35 * sizeof(unsigned long)))
-		return -EFAULT;
+static int evr_get(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
+{
+	int ret;
 
-	/* copy SPEFSCR */
-	if (__put_user(task->thread.spefscr, &data[34]))
-		return -EFAULT;
+	flush_spe_to_thread(target);
 
-	/* copy SPE registers EVR[0] .. EVR[31] */
-	for (i = 0; i < 32; i++, data++)
-		if (__put_user(task->thread.evr[i], data))
-			return -EFAULT;
+	ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				  &target->thread.evr,
+				  0, sizeof(target->thread.evr));
 
-	/* copy ACC */
-	if (__put_user64(task->thread.acc, (unsigned long long *)data))
-		return -EFAULT;
+	BUILD_BUG_ON(offsetof(struct thread_struct, acc) + sizeof(u64) !=
+		     offsetof(struct thread_struct, spefscr));
 
-	return 0;
+	if (!ret)
+		ret = user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+					  &target->thread.acc,
+					  sizeof(target->thread.evr), -1);
+
+	return ret;
+}
+
+static int evr_set(struct task_struct *target, const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	int ret;
+
+	flush_spe_to_thread(target);
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &target->thread.evr,
+				 0, sizeof(target->thread.evr));
+
+	BUILD_BUG_ON(offsetof(struct thread_struct, acc) + sizeof(u64) !=
+		     offsetof(struct thread_struct, spefscr));
+
+	if (!ret)
+		ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+					 &target->thread.acc,
+					 sizeof(target->thread.evr), -1);
+
+	return ret;
 }
+#endif /* CONFIG_SPE */
+
 
 /*
- * Write contents of SPE register state into task TASK.
+ * These are our native regset flavors.
  */
-static int set_evrregs(struct task_struct *task, unsigned long *data)
+enum powerpc_regset {
+	REGSET_GPR,
+	REGSET_FPR,
+#ifdef CONFIG_ALTIVEC
+	REGSET_VMX,
+#endif
+#ifdef CONFIG_SPE
+	REGSET_SPE,
+#endif
+};
+
+static const struct user_regset native_regsets[] = {
+	[REGSET_GPR] = {
+		.core_note_type = NT_PRSTATUS, .n = ELF_NGREG,
+		.size = sizeof(long), .align = sizeof(long),
+		.get = gpr_get, .set = gpr_set
+	},
+	[REGSET_FPR] = {
+		.core_note_type = NT_PRFPREG, .n = ELF_NFPREG,
+		.size = sizeof(double), .align = sizeof(double),
+		.get = fpr_get, .set = fpr_set
+	},
+#ifdef CONFIG_ALTIVEC
+	[REGSET_VMX] = {
+		.core_note_type = NT_PPC_VMX, .n = 34,
+		.size = sizeof(vector128), .align = sizeof(vector128),
+		.active = vr_active, .get = vr_get, .set = vr_set
+	},
+#endif
+#ifdef CONFIG_SPE
+	[REGSET_SPE] = {
+		.n = 35,
+		.size = sizeof(u32), .align = sizeof(u32),
+		.active = evr_active, .get = evr_get, .set = evr_set
+	},
+#endif
+};
+
+static const struct user_regset_view user_ppc_native_view = {
+	.name = UTS_MACHINE, .e_machine = ELF_ARCH, .ei_osabi = ELF_OSABI,
+	.regsets = native_regsets, .n = ARRAY_SIZE(native_regsets)
+};
+
+#ifdef CONFIG_PPC64
+#include <linux/compat.h>
+
+static int gpr32_get(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     void *kbuf, void __user *ubuf)
 {
-	int i;
+	const unsigned long *regs = &target->thread.regs->gpr[0];
+	compat_ulong_t *k = kbuf;
+	compat_ulong_t __user *u = ubuf;
+	compat_ulong_t reg;
+
+	if (target->thread.regs == NULL)
+		return -EIO;
+
+	CHECK_FULL_REGS(target->thread.regs);
 
-	if (!access_ok(VERIFY_READ, data, 35 * sizeof(unsigned long)))
-		return -EFAULT;
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
 
-	/* copy SPEFSCR */
-	if (__get_user(task->thread.spefscr, &data[34]))
-		return -EFAULT;
+	if (kbuf)
+		for (; count > 0 && pos < PT_MSR; --count)
+			*k++ = regs[pos++];
+	else
+		for (; count > 0 && pos < PT_MSR; --count)
+			if (__put_user((compat_ulong_t) regs[pos++], u++))
+				return -EFAULT;
 
-	/* copy SPE registers EVR[0] .. EVR[31] */
-	for (i = 0; i < 32; i++, data++)
-		if (__get_user(task->thread.evr[i], data))
+	if (count > 0 && pos == PT_MSR) {
+		reg = get_user_msr(target);
+		if (kbuf)
+			*k++ = reg;
+		else if (__put_user(reg, u++))
 			return -EFAULT;
-	/* copy ACC */
-	if (__get_user64(task->thread.acc, (unsigned long long*)data))
-		return -EFAULT;
+		++pos;
+		--count;
+	}
 
-	return 0;
+	if (kbuf)
+		for (; count > 0 && pos < PT_REGS_COUNT; --count)
+			*k++ = regs[pos++];
+	else
+		for (; count > 0 && pos < PT_REGS_COUNT; --count)
+			if (__put_user((compat_ulong_t) regs[pos++], u++))
+				return -EFAULT;
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyout_zero(&pos, &count, &kbuf, &ubuf,
+					PT_REGS_COUNT * sizeof(reg), -1);
+}
+
+static int gpr32_set(struct task_struct *target,
+		     const struct user_regset *regset,
+		     unsigned int pos, unsigned int count,
+		     const void *kbuf, const void __user *ubuf)
+{
+	unsigned long *regs = &target->thread.regs->gpr[0];
+	const compat_ulong_t *k = kbuf;
+	const compat_ulong_t __user *u = ubuf;
+	compat_ulong_t reg;
+
+	if (target->thread.regs == NULL)
+		return -EIO;
+
+	CHECK_FULL_REGS(target->thread.regs);
+
+	pos /= sizeof(reg);
+	count /= sizeof(reg);
+
+	if (kbuf)
+		for (; count > 0 && pos < PT_MSR; --count)
+			regs[pos++] = *k++;
+	else
+		for (; count > 0 && pos < PT_MSR; --count) {
+			if (__get_user(reg, u++))
+				return -EFAULT;
+			regs[pos++] = reg;
+		}
+
+
+	if (count > 0 && pos == PT_MSR) {
+		if (kbuf)
+			reg = *k++;
+		else if (__get_user(reg, u++))
+			return -EFAULT;
+		set_user_msr(target, reg);
+		++pos;
+		--count;
+	}
+
+	if (kbuf)
+		for (; count > 0 && pos <= PT_MAX_PUT_REG; --count)
+			regs[pos++] = *k++;
+	else
+		for (; count > 0 && pos <= PT_MAX_PUT_REG; --count) {
+			if (__get_user(reg, u++))
+				return -EFAULT;
+			regs[pos++] = reg;
+		}
+
+	if (count > 0 && pos == PT_TRAP) {
+		if (kbuf)
+			reg = *k++;
+		else if (__get_user(reg, u++))
+			return -EFAULT;
+		set_user_trap(target, reg);
+		++pos;
+		--count;
+	}
+
+	kbuf = k;
+	ubuf = u;
+	pos *= sizeof(reg);
+	count *= sizeof(reg);
+	return user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+					 (PT_TRAP + 1) * sizeof(reg), -1);
+}
+
+/*
+ * These are the regset flavors matching the CONFIG_PPC32 native set.
+ */
+static const struct user_regset compat_regsets[] = {
+	[REGSET_GPR] = {
+		.core_note_type = NT_PRSTATUS, .n = ELF_NGREG,
+		.size = sizeof(compat_long_t), .align = sizeof(compat_long_t),
+		.get = gpr32_get, .set = gpr32_set
+	},
+	[REGSET_FPR] = {
+		.core_note_type = NT_PRFPREG, .n = ELF_NFPREG,
+		.size = sizeof(double), .align = sizeof(double),
+		.get = fpr_get, .set = fpr_set
+	},
+#ifdef CONFIG_ALTIVEC
+	[REGSET_VMX] = {
+		.core_note_type = NT_PPC_VMX, .n = 34,
+		.size = sizeof(vector128), .align = sizeof(vector128),
+		.active = vr_active, .get = vr_get, .set = vr_set
+	},
+#endif
+#ifdef CONFIG_SPE
+	[REGSET_SPE] = {
+		.core_note_type = NT_PPC_SPE, .n = 35,
+		.size = sizeof(u32), .align = sizeof(u32),
+		.active = evr_active, .get = evr_get, .set = evr_set
+	},
+#endif
+};
+
+static const struct user_regset_view user_ppc_compat_view = {
+	.name = "ppc", .e_machine = EM_PPC, .ei_osabi = ELF_OSABI,
+	.regsets = compat_regsets, .n = ARRAY_SIZE(compat_regsets)
+};
+#endif	/* CONFIG_PPC64 */
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+#ifdef CONFIG_PPC64
+	if (test_tsk_thread_flag(task, TIF_32BIT))
+		return &user_ppc_compat_view;
+#endif
+	return &user_ppc_native_view;
 }
-#endif /* CONFIG_SPE */
 
 
 void user_enable_single_step(struct task_struct *task)
@@ -323,55 +671,29 @@ void ptrace_disable(struct task_struct *child)
 static long arch_ptrace_old(struct task_struct *child, long request, long addr,
 			    long data)
 {
-	int ret = -EPERM;
-
-	switch(request) {
-	case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
-		int i;
-		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
-		unsigned long __user *tmp = (unsigned long __user *)addr;
-
-		CHECK_FULL_REGS(child->thread.regs);
-		for (i = 0; i < 32; i++) {
-			ret = put_user(*reg, tmp);
-			if (ret)
-				break;
-			reg++;
-			tmp++;
-		}
-		break;
-	}
-
-	case PPC_PTRACE_SETREGS: { /* Set GPRs 0 - 31. */
-		int i;
-		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
-		unsigned long __user *tmp = (unsigned long __user *)addr;
-
-		CHECK_FULL_REGS(child->thread.regs);
-		for (i = 0; i < 32; i++) {
-			ret = get_user(*reg, tmp);
-			if (ret)
-				break;
-			reg++;
-			tmp++;
-		}
-		break;
-	}
-
-	case PPC_PTRACE_GETFPREGS: { /* Get FPRs 0 - 31. */
-		flush_fp_to_thread(child);
-		ret = get_fpregs((void __user *)addr, child, 0);
-		break;
-	}
-
-	case PPC_PTRACE_SETFPREGS: { /* Get FPRs 0 - 31. */
-		flush_fp_to_thread(child);
-		ret = set_fpregs((void __user *)addr, child, 0);
-		break;
+	switch (request) {
+	case PPC_PTRACE_GETREGS:	/* Get GPRs 0 - 31. */
+		return copy_regset_to_user(child, &user_ppc_native_view,
+					   REGSET_GPR, 0, 32 * sizeof(long),
+					   (void __user *) data);
+
+	case PPC_PTRACE_SETREGS:	/* Set GPRs 0 - 31. */
+		return copy_regset_from_user(child, &user_ppc_native_view,
+					     REGSET_GPR, 0, 32 * sizeof(long),
+					     (const void __user *) data);
+
+	case PPC_PTRACE_GETFPREGS:	/* Get FPRs 0 - 31. */
+		return copy_regset_to_user(child, &user_ppc_native_view,
+					   REGSET_FPR, 0, 32 * sizeof(double),
+					   (void __user *) data);
+
+	case PPC_PTRACE_SETFPREGS:	/* Set FPRs 0 - 31. */
+		return copy_regset_from_user(child, &user_ppc_native_view,
+					     REGSET_FPR, 0, 32 * sizeof(double),
+					     (const void __user *) data);
 	}
 
-	}
-	return ret;
+	return -EPERM;
 }
 
 long arch_ptrace(struct task_struct *child, long request, long addr, long data)
@@ -379,12 +701,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 	int ret = -EPERM;
 
 	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */
-	case PTRACE_PEEKDATA:
-		ret = generic_ptrace_peekdata(child, addr, data);
-		break;
-
 	/* read the word at location addr in the USER area. */
 	case PTRACE_PEEKUSR: {
 		unsigned long index, tmp;
@@ -412,12 +728,6 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 		break;
 	}
 
-	/* If I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA:
-		ret = generic_ptrace_pokedata(child, addr, data);
-		break;
-
 	/* write the word at location addr in the USER area */
 	case PTRACE_POKEUSR: {
 		unsigned long index;
@@ -462,85 +772,60 @@ long arch_ptrace(struct task_struct *child, long request, long addr, long data)
 #ifdef CONFIG_PPC64
 	case PTRACE_GETREGS64:
 #endif
-	case PTRACE_GETREGS: { /* Get all pt_regs from the child. */
-		int ui;
-	  	if (!access_ok(VERIFY_WRITE, (void __user *)data,
-			       sizeof(struct pt_regs))) {
-			ret = -EIO;
-			break;
-		}
-		CHECK_FULL_REGS(child->thread.regs);
-		ret = 0;
-		for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
-			ret |= __put_user(ptrace_get_reg(child, ui),
-					  (unsigned long __user *) data);
-			data += sizeof(long);
-		}
-		break;
-	}
+	case PTRACE_GETREGS:	/* Get all pt_regs from the child. */
+		return copy_regset_to_user(child, &user_ppc_native_view,
+					   REGSET_GPR,
+					   0, sizeof(struct pt_regs),
+					   (void __user *) data);
 
 #ifdef CONFIG_PPC64
 	case PTRACE_SETREGS64:
 #endif
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-		int ui;
-	  	if (!access_ok(VERIFY_READ, (void __user *)data,
-			       sizeof(struct pt_regs))) {
-			ret = -EIO;
-			break;
-		}
-		CHECK_FULL_REGS(child->thread.regs);
-		ret = 0;
-		for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
-			ret = __get_user(tmp, (unsigned long __user *) data);
-			if (ret)
-				break;
-			ptrace_put_reg(child, ui, tmp);
-			data += sizeof(long);
-		}
-		break;
-	}
-
-	case PTRACE_GETFPREGS: { /* Get the child FPU state (FPR0...31 + FPSCR) */
-		flush_fp_to_thread(child);
-		ret = get_fpregs((void __user *)data, child, 1);
-		break;
-	}
-
-	case PTRACE_SETFPREGS: { /* Set the child FPU state (FPR0...31 + FPSCR) */
-		flush_fp_to_thread(child);
-		ret = set_fpregs((void __user *)data, child, 1);
-		break;
-	}
+	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
+		return copy_regset_from_user(child, &user_ppc_native_view,
+					     REGSET_GPR,
+					     0, sizeof(struct pt_regs),
+					     (const void __user *) data);
+
+	case PTRACE_GETFPREGS: /* Get the child FPU state (FPR0...31 + FPSCR) */
+		return copy_regset_to_user(child, &user_ppc_native_view,
+					   REGSET_FPR,
+					   0, sizeof(elf_fpregset_t),
+					   (void __user *) data);
+
+	case PTRACE_SETFPREGS: /* Set the child FPU state (FPR0...31 + FPSCR) */
+		return copy_regset_from_user(child, &user_ppc_native_view,
+					     REGSET_FPR,
+					     0, sizeof(elf_fpregset_t),
+					     (const void __user *) data);
 
 #ifdef CONFIG_ALTIVEC
 	case PTRACE_GETVRREGS:
-		/* Get the child altivec register state. */
-		flush_altivec_to_thread(child);
-		ret = get_vrregs((unsigned long __user *)data, child);
-		break;
+		return copy_regset_to_user(child, &user_ppc_native_view,
+					   REGSET_VMX,
+					   0, (33 * sizeof(vector128) +
+					       sizeof(u32)),
+					   (void __user *) data);
 
 	case PTRACE_SETVRREGS:
-		/* Set the child altivec register state. */
-		flush_altivec_to_thread(child);
-		ret = set_vrregs(child, (unsigned long __user *)data);
-		break;
+		return copy_regset_from_user(child, &user_ppc_native_view,
+					     REGSET_VMX,
+					     0, (33 * sizeof(vector128) +
+						 sizeof(u32)),
+					     (const void __user *) data);
 #endif
 #ifdef CONFIG_SPE
 	case PTRACE_GETEVRREGS:
 		/* Get the child spe register state. */
-		flush_spe_to_thread(child);
-		ret = get_evrregs((unsigned long __user *)data, child);
-		break;
+		return copy_regset_to_user(child, &user_ppc_native_view,
+					   REGSET_SPE, 0, 35 * sizeof(u32),
+					   (void __user *) data);
 
 	case PTRACE_SETEVRREGS:
 		/* Set the child spe register state. */
-		/* this is to clear the MSR_SPE bit to force a reload
-		 * of register state from memory */
-		flush_spe_to_thread(child);
-		ret = set_evrregs(child, (unsigned long __user *)data);
-		break;
+		return copy_regset_from_user(child, &user_ppc_native_view,
+					     REGSET_SPE, 0, 35 * sizeof(u32),
+					     (const void __user *) data);
 #endif
 
 	/* Old reverse args ptrace callss */
diff --git a/arch/powerpc/kernel/ptrace32.c b/arch/powerpc/kernel/ptrace32.c
index fea6206ff90..4c1de6af4c0 100644
--- a/arch/powerpc/kernel/ptrace32.c
+++ b/arch/powerpc/kernel/ptrace32.c
@@ -24,9 +24,11 @@
 #include <linux/smp_lock.h>
 #include <linux/errno.h>
 #include <linux/ptrace.h>
+#include <linux/regset.h>
 #include <linux/user.h>
 #include <linux/security.h>
 #include <linux/signal.h>
+#include <linux/compat.h>
 
 #include <asm/uaccess.h>
 #include <asm/page.h>
@@ -45,87 +47,31 @@
 static long compat_ptrace_old(struct task_struct *child, long request,
 			      long addr, long data)
 {
-	int ret = -EPERM;
-
-	switch(request) {
-	case PPC_PTRACE_GETREGS: { /* Get GPRs 0 - 31. */
-		int i;
-		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
-		unsigned int __user *tmp = (unsigned int __user *)addr;
-
-		CHECK_FULL_REGS(child->thread.regs);
-		for (i = 0; i < 32; i++) {
-			ret = put_user(*reg, tmp);
-			if (ret)
-				break;
-			reg++;
-			tmp++;
-		}
-		break;
-	}
-
-	case PPC_PTRACE_SETREGS: { /* Set GPRs 0 - 31. */
-		int i;
-		unsigned long *reg = &((unsigned long *)child->thread.regs)[0];
-		unsigned int __user *tmp = (unsigned int __user *)addr;
-
-		CHECK_FULL_REGS(child->thread.regs);
-		for (i = 0; i < 32; i++) {
-			ret = get_user(*reg, tmp);
-			if (ret)
-				break;
-			reg++;
-			tmp++;
-		}
-		break;
+	switch (request) {
+	case PPC_PTRACE_GETREGS:	/* Get GPRs 0 - 31. */
+		return copy_regset_to_user(child,
+					   task_user_regset_view(current), 0,
+					   0, 32 * sizeof(compat_long_t),
+					   compat_ptr(data));
+
+	case PPC_PTRACE_SETREGS:	/* Set GPRs 0 - 31. */
+		return copy_regset_from_user(child,
+					     task_user_regset_view(current), 0,
+					     0, 32 * sizeof(compat_long_t),
+					     compat_ptr(data));
 	}
 
-	}
-	return ret;
+	return -EPERM;
 }
 
-long compat_sys_ptrace(int request, int pid, unsigned long addr,
-		       unsigned long data)
+long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
+			compat_ulong_t caddr, compat_ulong_t cdata)
 {
-	struct task_struct *child;
+	unsigned long addr = caddr;
+	unsigned long data = cdata;
 	int ret;
 
-	lock_kernel();
-	if (request == PTRACE_TRACEME) {
-		ret = ptrace_traceme();
-		goto out;
-	}
-
-	child = ptrace_get_task_struct(pid);
-	if (IS_ERR(child)) {
-		ret = PTR_ERR(child);
-		goto out;
-	}
-
-	if (request == PTRACE_ATTACH) {
-		ret = ptrace_attach(child);
-		goto out_tsk;
-	}
-
-	ret = ptrace_check_attach(child, request == PTRACE_KILL);
-	if (ret < 0)
-		goto out_tsk;
-
 	switch (request) {
-	/* when I and D space are separate, these will need to be fixed. */
-	case PTRACE_PEEKTEXT: /* read word at location addr. */ 
-	case PTRACE_PEEKDATA: {
-		unsigned int tmp;
-		int copied;
-
-		copied = access_process_vm(child, addr, &tmp, sizeof(tmp), 0);
-		ret = -EIO;
-		if (copied != sizeof(tmp))
-			break;
-		ret = put_user(tmp, (u32 __user *)data);
-		break;
-	}
-
 	/*
 	 * Read 4 bytes of the other process' storage
 	 *  data is a pointer specifying where the user wants the
@@ -225,19 +171,6 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
 		break;
 	}
 
-	/* If I and D space are separate, this will have to be fixed. */
-	case PTRACE_POKETEXT: /* write the word at location addr. */
-	case PTRACE_POKEDATA: {
-		unsigned int tmp;
-		tmp = data;
-		ret = 0;
-		if (access_process_vm(child, addr, &tmp, sizeof(tmp), 1)
-				== sizeof(tmp))
-			break;
-		ret = -EIO;
-		break;
-	}
-
 	/*
 	 * Write 4 bytes into the other process' storage
 	 *  data is the 4 bytes that the user wants written
@@ -337,46 +270,17 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
 		break;
 	}
 
-	case PTRACE_GETEVENTMSG:
-		ret = put_user(child->ptrace_message, (unsigned int __user *) data);
-		break;
+	case PTRACE_GETREGS:	/* Get all pt_regs from the child. */
+		return copy_regset_to_user(
+			child, task_user_regset_view(current), 0,
+			0, PT_REGS_COUNT * sizeof(compat_long_t),
+			compat_ptr(data));
 
-	case PTRACE_GETREGS: { /* Get all pt_regs from the child. */
-		int ui;
-	  	if (!access_ok(VERIFY_WRITE, (void __user *)data,
-			       PT_REGS_COUNT * sizeof(int))) {
-			ret = -EIO;
-			break;
-		}
-		CHECK_FULL_REGS(child->thread.regs);
-		ret = 0;
-		for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
-			ret |= __put_user(ptrace_get_reg(child, ui),
-					  (unsigned int __user *) data);
-			data += sizeof(int);
-		}
-		break;
-	}
-
-	case PTRACE_SETREGS: { /* Set all gp regs in the child. */
-		unsigned long tmp;
-		int ui;
-	  	if (!access_ok(VERIFY_READ, (void __user *)data,
-			       PT_REGS_COUNT * sizeof(int))) {
-			ret = -EIO;
-			break;
-		}
-		CHECK_FULL_REGS(child->thread.regs);
-		ret = 0;
-		for (ui = 0; ui < PT_REGS_COUNT; ui ++) {
-			ret = __get_user(tmp, (unsigned int __user *) data);
-			if (ret)
-				break;
-			ptrace_put_reg(child, ui, tmp);
-			data += sizeof(int);
-		}
-		break;
-	}
+	case PTRACE_SETREGS:	/* Set all gp regs in the child. */
+		return copy_regset_from_user(
+			child, task_user_regset_view(current), 0,
+			0, PT_REGS_COUNT * sizeof(compat_long_t),
+			compat_ptr(data));
 
 	case PTRACE_GETFPREGS:
 	case PTRACE_SETFPREGS:
@@ -402,12 +306,9 @@ long compat_sys_ptrace(int request, int pid, unsigned long addr,
 		break;
 
 	default:
-		ret = ptrace_request(child, request, addr, data);
+		ret = compat_ptrace_request(child, request, addr, data);
 		break;
 	}
-out_tsk:
-	put_task_struct(child);
-out:
-	unlock_kernel();
+
 	return ret;
 }
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 848a20475db..4b5b7ff4f78 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -54,7 +54,7 @@
 #endif
 #include <asm/kexec.h>
 
-#ifdef CONFIG_DEBUGGER
+#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
 int (*__debugger)(struct pt_regs *regs);
 int (*__debugger_ipi)(struct pt_regs *regs);
 int (*__debugger_bpt)(struct pt_regs *regs);
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index f0bad7070fb..f98867252ee 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -176,7 +176,7 @@ static void __devinit vio_dev_release(struct device *dev)
  * Returns a pointer to the created vio_dev or NULL if node has
  * NULL device_type or compatible fields.
  */
-struct vio_dev * __devinit vio_register_device_node(struct device_node *of_node)
+struct vio_dev *vio_register_device_node(struct device_node *of_node)
 {
 	struct vio_dev *viodev;
 	const unsigned int *unit_address;
diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index ff5debf5eed..93a5c53e342 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -485,7 +485,12 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
 		 */
 		_tlbie(address, 0 /* 8xx doesn't care about PID */);
 #endif
-		if (!PageReserved(page)
+		/* The _PAGE_USER test should really be _PAGE_EXEC, but
+		 * older glibc versions execute some code from no-exec
+		 * pages, which for now we are supporting.  If exec-only
+		 * pages are ever implemented, this will have to change.
+		 */
+		if (!PageReserved(page) && (pte_val(pte) & _PAGE_USER)
 		    && !test_bit(PG_arch_1, &page->flags)) {
 			if (vma->vm_mm == current->active_mm) {
 				__flush_dcache_icache((void *) address);
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index bc60322d243..a300d254aac 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -24,6 +24,8 @@
 
 static int numa_enabled = 1;
 
+static char *cmdline __initdata;
+
 static int numa_debug;
 #define dbg(args...) if (numa_debug) { printk(KERN_INFO args); }
 
@@ -39,6 +41,53 @@ static bootmem_data_t __initdata plat_node_bdata[MAX_NUMNODES];
 static int min_common_depth;
 static int n_mem_addr_cells, n_mem_size_cells;
 
+static int __cpuinit fake_numa_create_new_node(unsigned long end_pfn,
+						unsigned int *nid)
+{
+	unsigned long long mem;
+	char *p = cmdline;
+	static unsigned int fake_nid;
+	static unsigned long long curr_boundary;
+
+	/*
+	 * Modify node id, iff we started creating NUMA nodes
+	 * We want to continue from where we left of the last time
+	 */
+	if (fake_nid)
+		*nid = fake_nid;
+	/*
+	 * In case there are no more arguments to parse, the
+	 * node_id should be the same as the last fake node id
+	 * (we've handled this above).
+	 */
+	if (!p)
+		return 0;
+
+	mem = memparse(p, &p);
+	if (!mem)
+		return 0;
+
+	if (mem < curr_boundary)
+		return 0;
+
+	curr_boundary = mem;
+
+	if ((end_pfn << PAGE_SHIFT) > mem) {
+		/*
+		 * Skip commas and spaces
+		 */
+		while (*p == ',' || *p == ' ' || *p == '\t')
+			p++;
+
+		cmdline = p;
+		fake_nid++;
+		*nid = fake_nid;
+		dbg("created new fake_node with id %d\n", fake_nid);
+		return 1;
+	}
+	return 0;
+}
+
 static void __cpuinit map_cpu_to_node(int cpu, int node)
 {
 	numa_cpu_lookup_table[cpu] = node;
@@ -344,6 +393,9 @@ static void __init parse_drconf_memory(struct device_node *memory)
 			if (nid == 0xffff || nid >= MAX_NUMNODES)
 				nid = default_nid;
 		}
+
+		fake_numa_create_new_node(((start + lmb_size) >> PAGE_SHIFT),
+						&nid);
 		node_set_online(nid);
 
 		size = numa_enforce_memory_limit(start, lmb_size);
@@ -429,6 +481,8 @@ new_range:
 		nid = of_node_to_nid_single(memory);
 		if (nid < 0)
 			nid = default_nid;
+
+		fake_numa_create_new_node(((start + size) >> PAGE_SHIFT), &nid);
 		node_set_online(nid);
 
 		if (!(size = numa_enforce_memory_limit(start, size))) {
@@ -461,7 +515,7 @@ static void __init setup_nonnuma(void)
 	unsigned long top_of_ram = lmb_end_of_DRAM();
 	unsigned long total_ram = lmb_phys_mem_size();
 	unsigned long start_pfn, end_pfn;
-	unsigned int i;
+	unsigned int i, nid = 0;
 
 	printk(KERN_DEBUG "Top of RAM: 0x%lx, Total RAM: 0x%lx\n",
 	       top_of_ram, total_ram);
@@ -471,9 +525,11 @@ static void __init setup_nonnuma(void)
 	for (i = 0; i < lmb.memory.cnt; ++i) {
 		start_pfn = lmb.memory.region[i].base >> PAGE_SHIFT;
 		end_pfn = start_pfn + lmb_size_pages(&lmb.memory, i);
-		add_active_range(0, start_pfn, end_pfn);
+
+		fake_numa_create_new_node(end_pfn, &nid);
+		add_active_range(nid, start_pfn, end_pfn);
+		node_set_online(nid);
 	}
-	node_set_online(0);
 }
 
 void __init dump_numa_cpu_topology(void)
@@ -702,6 +758,10 @@ static int __init early_numa(char *p)
 	if (strstr(p, "debug"))
 		numa_debug = 1;
 
+	p = strstr(p, "fake=");
+	if (p)
+		cmdline = p + strlen("fake=");
+
 	return 0;
 }
 early_param("numa", early_numa);
diff --git a/arch/powerpc/oprofile/Makefile b/arch/powerpc/oprofile/Makefile
index c5f64c3bd66..2ef6b0dddd8 100644
--- a/arch/powerpc/oprofile/Makefile
+++ b/arch/powerpc/oprofile/Makefile
@@ -15,5 +15,5 @@ oprofile-$(CONFIG_OPROFILE_CELL) += op_model_cell.o \
 		cell/spu_profiler.o cell/vma_map.o \
 		cell/spu_task_sync.o
 oprofile-$(CONFIG_PPC64) += op_model_rs64.o op_model_power4.o op_model_pa6t.o
-oprofile-$(CONFIG_FSL_BOOKE) += op_model_fsl_booke.o
+oprofile-$(CONFIG_FSL_EMB_PERFMON) += op_model_fsl_emb.o
 oprofile-$(CONFIG_6xx) += op_model_7450.o
diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index a28cce1d6c2..4908dc98f9c 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -202,9 +202,9 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 			model = &op_model_7450;
 			break;
 #endif
-#ifdef CONFIG_FSL_BOOKE
-		case PPC_OPROFILE_BOOKE:
-			model = &op_model_fsl_booke;
+#if defined(CONFIG_FSL_EMB_PERFMON)
+		case PPC_OPROFILE_FSL_EMB:
+			model = &op_model_fsl_emb;
 			break;
 #endif
 		default:
diff --git a/arch/powerpc/oprofile/op_model_fsl_booke.c b/arch/powerpc/oprofile/op_model_fsl_emb.c
index 183a28bb181..91596f6ba1f 100644
--- a/arch/powerpc/oprofile/op_model_fsl_booke.c
+++ b/arch/powerpc/oprofile/op_model_fsl_emb.c
@@ -1,7 +1,5 @@
 /*
- * arch/powerpc/oprofile/op_model_fsl_booke.c
- *
- * Freescale Book-E oprofile support, based on ppc64 oprofile support
+ * Freescale Embedded oprofile support, based on ppc64 oprofile support
  * Copyright (C) 2004 Anton Blanchard <anton@au.ibm.com>, IBM
  *
  * Copyright (c) 2004 Freescale Semiconductor, Inc
@@ -22,7 +20,7 @@
 #include <asm/system.h>
 #include <asm/processor.h>
 #include <asm/cputable.h>
-#include <asm/reg_booke.h>
+#include <asm/reg_fsl_emb.h>
 #include <asm/page.h>
 #include <asm/pmc.h>
 #include <asm/oprofile_impl.h>
@@ -244,7 +242,7 @@ static void dump_pmcs(void)
 			mfpmr(PMRN_PMLCA3), mfpmr(PMRN_PMLCB3));
 }
 
-static int fsl_booke_cpu_setup(struct op_counter_config *ctr)
+static int fsl_emb_cpu_setup(struct op_counter_config *ctr)
 {
 	int i;
 
@@ -262,7 +260,7 @@ static int fsl_booke_cpu_setup(struct op_counter_config *ctr)
 	return 0;
 }
 
-static int fsl_booke_reg_setup(struct op_counter_config *ctr,
+static int fsl_emb_reg_setup(struct op_counter_config *ctr,
 			     struct op_system_config *sys,
 			     int num_ctrs)
 {
@@ -281,7 +279,7 @@ static int fsl_booke_reg_setup(struct op_counter_config *ctr,
 	return 0;
 }
 
-static int fsl_booke_start(struct op_counter_config *ctr)
+static int fsl_emb_start(struct op_counter_config *ctr)
 {
 	int i;
 
@@ -315,7 +313,7 @@ static int fsl_booke_start(struct op_counter_config *ctr)
 	return 0;
 }
 
-static void fsl_booke_stop(void)
+static void fsl_emb_stop(void)
 {
 	/* freeze counters */
 	pmc_stop_ctrs();
@@ -329,7 +327,7 @@ static void fsl_booke_stop(void)
 }
 
 
-static void fsl_booke_handle_interrupt(struct pt_regs *regs,
+static void fsl_emb_handle_interrupt(struct pt_regs *regs,
 				    struct op_counter_config *ctr)
 {
 	unsigned long pc;
@@ -362,10 +360,10 @@ static void fsl_booke_handle_interrupt(struct pt_regs *regs,
 	pmc_start_ctrs(1);
 }
 
-struct op_powerpc_model op_model_fsl_booke = {
-	.reg_setup		= fsl_booke_reg_setup,
-	.cpu_setup		= fsl_booke_cpu_setup,
-	.start			= fsl_booke_start,
-	.stop			= fsl_booke_stop,
-	.handle_interrupt	= fsl_booke_handle_interrupt,
+struct op_powerpc_model op_model_fsl_emb = {
+	.reg_setup		= fsl_emb_reg_setup,
+	.cpu_setup		= fsl_emb_cpu_setup,
+	.start			= fsl_emb_start,
+	.stop			= fsl_emb_stop,
+	.handle_interrupt	= fsl_emb_handle_interrupt,
 };
diff --git a/arch/powerpc/platforms/40x/Kconfig b/arch/powerpc/platforms/40x/Kconfig
index 74f31177e47..a9260e21451 100644
--- a/arch/powerpc/platforms/40x/Kconfig
+++ b/arch/powerpc/platforms/40x/Kconfig
@@ -72,6 +72,7 @@ config WALNUT
 	default y
 	select 405GP
 	select PCI
+	select OF_RTC
 	help
 	  This option enables support for the IBM PPC405GP evaluation board.
 
diff --git a/arch/powerpc/platforms/40x/virtex.c b/arch/powerpc/platforms/40x/virtex.c
index 88b66444dfb..0422590040d 100644
--- a/arch/powerpc/platforms/40x/virtex.c
+++ b/arch/powerpc/platforms/40x/virtex.c
@@ -37,7 +37,7 @@ static int __init virtex_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
 
-	if (!of_flat_dt_is_compatible(root, "xilinx,virtex"))
+	if (!of_flat_dt_is_compatible(root, "xlnx,virtex"))
 		return 0;
 
 	return 1;
diff --git a/arch/powerpc/platforms/40x/walnut.c b/arch/powerpc/platforms/40x/walnut.c
index 5d9edd917f9..b8b257efeb7 100644
--- a/arch/powerpc/platforms/40x/walnut.c
+++ b/arch/powerpc/platforms/40x/walnut.c
@@ -18,6 +18,7 @@
 
 #include <linux/init.h>
 #include <linux/of_platform.h>
+#include <linux/rtc.h>
 
 #include <asm/machdep.h>
 #include <asm/prom.h>
diff --git a/arch/powerpc/platforms/44x/warp.c b/arch/powerpc/platforms/44x/warp.c
index 8f01563dbd2..da5b7b7599d 100644
--- a/arch/powerpc/platforms/44x/warp.c
+++ b/arch/powerpc/platforms/44x/warp.c
@@ -137,7 +137,7 @@ static int __init pika_dtm_start(void)
 	}
 	of_node_put(np);
 
-	fpga = ioremap(res.start + 0x20, 4);
+	fpga = ioremap(res.start, 0x24);
 	if (fpga == NULL)
 		return -ENOENT;
 
diff --git a/arch/powerpc/platforms/512x/Kconfig b/arch/powerpc/platforms/512x/Kconfig
new file mode 100644
index 00000000000..c6fa49e23dc
--- /dev/null
+++ b/arch/powerpc/platforms/512x/Kconfig
@@ -0,0 +1,20 @@
+config PPC_MPC512x
+	bool
+	select FSL_SOC
+	select IPIC
+	default n
+
+config PPC_MPC5121
+	bool
+	select PPC_MPC512x
+	default n
+
+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.
+	default n
diff --git a/arch/powerpc/platforms/512x/Makefile b/arch/powerpc/platforms/512x/Makefile
new file mode 100644
index 00000000000..232c89f2039
--- /dev/null
+++ b/arch/powerpc/platforms/512x/Makefile
@@ -0,0 +1,4 @@
+#
+# Makefile for the Freescale PowerPC 512x linux kernel.
+#
+obj-$(CONFIG_MPC5121_ADS)	+= mpc5121_ads.o
diff --git a/arch/powerpc/platforms/512x/mpc5121_ads.c b/arch/powerpc/platforms/512x/mpc5121_ads.c
new file mode 100644
index 00000000000..50bd3a31902
--- /dev/null
+++ b/arch/powerpc/platforms/512x/mpc5121_ads.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
+ *
+ * Author: John Rigby, <jrigby@freescale.com>, Thur Mar 29 2007
+ *
+ * Description:
+ * MPC5121 ADS board setup
+ *
+ * This 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.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/ipic.h>
+#include <asm/prom.h>
+#include <asm/time.h>
+
+/**
+ * 	mpc512x_find_ips_freq - Find the IPS bus frequency for a device
+ * 	@node:	device node
+ *
+ * 	Returns IPS bus frequency, or 0 if the bus frequency cannot be found.
+ */
+unsigned long
+mpc512x_find_ips_freq(struct device_node *node)
+{
+	struct device_node *np;
+	const unsigned int *p_ips_freq = NULL;
+
+	of_node_get(node);
+	while (node) {
+		p_ips_freq = of_get_property(node, "bus-frequency", NULL);
+		if (p_ips_freq)
+			break;
+
+		np = of_get_parent(node);
+		of_node_put(node);
+		node = np;
+	}
+	if (node)
+		of_node_put(node);
+
+	return p_ips_freq ? *p_ips_freq : 0;
+}
+EXPORT_SYMBOL(mpc512x_find_ips_freq);
+
+static struct of_device_id __initdata of_bus_ids[] = {
+	{ .name = "soc", },
+	{ .name = "localbus", },
+	{},
+};
+
+static void __init mpc5121_ads_declare_of_platform_devices(void)
+{
+	/* Find every child of the SOC node and add it to of_platform */
+	if (of_platform_bus_probe(NULL, of_bus_ids, NULL))
+		printk(KERN_ERR __FILE__ ": "
+			"Error while probing of_platform bus\n");
+}
+
+static void __init mpc5121_ads_init_IRQ(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "fsl,ipic");
+	if (!np)
+		return;
+
+	ipic_init(np, 0);
+	of_node_put(np);
+
+	/*
+	 * Initialize the default interrupt mapping priorities,
+	 * in case the boot rom changed something on us.
+	 */
+	ipic_set_default_priority();
+}
+
+/*
+ * Called very early, MMU is off, device-tree isn't unflattened
+ */
+static int __init mpc5121_ads_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	return of_flat_dt_is_compatible(root, "fsl,mpc5121ads");
+}
+
+define_machine(mpc5121_ads) {
+	.name			= "MPC5121 ADS",
+	.probe			= mpc5121_ads_probe,
+	.init			= mpc5121_ads_declare_of_platform_devices,
+	.init_IRQ		= mpc5121_ads_init_IRQ,
+	.get_irq		= ipic_get_irq,
+	.calibrate_decr		= generic_calibrate_decr,
+};
diff --git a/arch/powerpc/platforms/82xx/mpc8272_ads.c b/arch/powerpc/platforms/82xx/mpc8272_ads.c
index 3fce6b375db..7d301875198 100644
--- a/arch/powerpc/platforms/82xx/mpc8272_ads.c
+++ b/arch/powerpc/platforms/82xx/mpc8272_ads.c
@@ -134,13 +134,12 @@ static void __init mpc8272_ads_setup_arch(void)
 	}
 
 	bcsr = of_iomap(np, 0);
+	of_node_put(np);
 	if (!bcsr) {
 		printk(KERN_ERR "Cannot map BCSR registers\n");
 		return;
 	}
 
-	of_node_put(np);
-
 	clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN);
 	setbits32(&bcsr[1], BCSR1_FETH_RST);
 
diff --git a/arch/powerpc/platforms/82xx/pq2fads.c b/arch/powerpc/platforms/82xx/pq2fads.c
index 68196e34999..e1dceeec499 100644
--- a/arch/powerpc/platforms/82xx/pq2fads.c
+++ b/arch/powerpc/platforms/82xx/pq2fads.c
@@ -130,13 +130,12 @@ static void __init pq2fads_setup_arch(void)
 	}
 
 	bcsr = of_iomap(np, 0);
+	of_node_put(np);
 	if (!bcsr) {
 		printk(KERN_ERR "Cannot map BCSR registers\n");
 		return;
 	}
 
-	of_node_put(np);
-
 	/* Enable the serial and ethernet ports */
 
 	clrbits32(&bcsr[1], BCSR1_RS232_EN1 | BCSR1_RS232_EN2 | BCSR1_FETHIEN);
diff --git a/arch/powerpc/platforms/83xx/mpc832x_rdb.c b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
index 9f0fd88b2b1..e7f706b624f 100644
--- a/arch/powerpc/platforms/83xx/mpc832x_rdb.c
+++ b/arch/powerpc/platforms/83xx/mpc832x_rdb.c
@@ -101,7 +101,7 @@ static void __init mpc832x_rdb_setup_arch(void)
 #ifdef CONFIG_QUICC_ENGINE
 	qe_reset();
 
-	if ((np = of_find_node_by_name(np, "par_io")) != NULL) {
+	if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
 		par_io_init(np);
 		of_node_put(np);
 
diff --git a/arch/powerpc/platforms/83xx/mpc83xx.h b/arch/powerpc/platforms/83xx/mpc83xx.h
index 88bb748aff0..68065e62fc3 100644
--- a/arch/powerpc/platforms/83xx/mpc83xx.h
+++ b/arch/powerpc/platforms/83xx/mpc83xx.h
@@ -14,6 +14,8 @@
 #define MPC83XX_SCCR_USB_DRCM_11   0x00300000
 #define MPC83XX_SCCR_USB_DRCM_01   0x00100000
 #define MPC83XX_SCCR_USB_DRCM_10   0x00200000
+#define MPC8315_SCCR_USB_MASK      0x00c00000
+#define MPC8315_SCCR_USB_DRCM_11   0x00c00000
 #define MPC837X_SCCR_USB_DRCM_11   0x00c00000
 
 /* system i/o configuration register low */
diff --git a/arch/powerpc/platforms/83xx/usb.c b/arch/powerpc/platforms/83xx/usb.c
index 681230a30ac..471fdd8f410 100644
--- a/arch/powerpc/platforms/83xx/usb.c
+++ b/arch/powerpc/platforms/83xx/usb.c
@@ -104,6 +104,7 @@ int mpc831x_usb_cfg(void)
 	u32 temp;
 	void __iomem *immap, *usb_regs;
 	struct device_node *np = NULL;
+	struct device_node *immr_node = NULL;
 	const void *prop;
 	struct resource res;
 	int ret = 0;
@@ -124,10 +125,15 @@ int mpc831x_usb_cfg(void)
 	}
 
 	/* Configure clock */
-	temp = in_be32(immap + MPC83XX_SCCR_OFFS);
-	temp &= ~MPC83XX_SCCR_USB_MASK;
-	temp |= MPC83XX_SCCR_USB_DRCM_11;  /* 1:3 */
-	out_be32(immap + MPC83XX_SCCR_OFFS, temp);
+	immr_node = of_get_parent(np);
+	if (immr_node && of_device_is_compatible(immr_node, "fsl,mpc8315-immr"))
+		clrsetbits_be32(immap + MPC83XX_SCCR_OFFS,
+		                MPC8315_SCCR_USB_MASK,
+		                MPC8315_SCCR_USB_DRCM_11);
+	else
+		clrsetbits_be32(immap + MPC83XX_SCCR_OFFS,
+		                MPC83XX_SCCR_USB_MASK,
+		                MPC83XX_SCCR_USB_DRCM_11);
 
 	/* Configure pin mux for ULPI.  There is no pin mux for UTMI */
 	if (prop && !strcmp(prop, "ulpi")) {
@@ -144,6 +150,9 @@ int mpc831x_usb_cfg(void)
 
 	iounmap(immap);
 
+	if (immr_node)
+		of_node_put(immr_node);
+
 	/* Map USB SOC space */
 	ret = of_address_to_resource(np, 0, &res);
 	if (ret) {
diff --git a/arch/powerpc/platforms/8xx/adder875.c b/arch/powerpc/platforms/8xx/adder875.c
index c6bc0783c3b..82363e98f50 100644
--- a/arch/powerpc/platforms/8xx/adder875.c
+++ b/arch/powerpc/platforms/8xx/adder875.c
@@ -15,12 +15,12 @@
 
 #include <asm/time.h>
 #include <asm/machdep.h>
-#include <asm/commproc.h>
+#include <asm/cpm1.h>
 #include <asm/fs_pd.h>
 #include <asm/udbg.h>
 #include <asm/prom.h>
 
-#include <sysdev/commproc.h>
+#include "mpc8xx.h"
 
 struct cpm_pin {
 	int port, pin, flags;
@@ -108,7 +108,7 @@ define_machine(adder875) {
 	.name = "Adder MPC875",
 	.probe = adder875_probe,
 	.setup_arch = adder875_setup,
-	.init_IRQ = m8xx_pic_init,
+	.init_IRQ = mpc8xx_pics_init,
 	.get_irq = mpc8xx_get_irq,
 	.restart = mpc8xx_restart,
 	.calibrate_decr = generic_calibrate_decr,
diff --git a/arch/powerpc/platforms/8xx/ep88xc.c b/arch/powerpc/platforms/8xx/ep88xc.c
index a8dffa00577..7d9ac6040d6 100644
--- a/arch/powerpc/platforms/8xx/ep88xc.c
+++ b/arch/powerpc/platforms/8xx/ep88xc.c
@@ -15,7 +15,6 @@
 #include <asm/machdep.h>
 #include <asm/io.h>
 #include <asm/udbg.h>
-#include <asm/commproc.h>
 #include <asm/cpm1.h>
 
 #include "mpc8xx.h"
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index fdce10c4f07..fcedbec07f9 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -24,6 +24,7 @@ config PPC_83xx
 	select MPC83xx
 	select IPIC
 	select WANT_DEVICE_TREE
+	select FSL_EMB_PERFMON
 
 config PPC_86xx
 	bool "Freescale 86xx"
@@ -41,6 +42,7 @@ config CLASSIC32
 source "arch/powerpc/platforms/pseries/Kconfig"
 source "arch/powerpc/platforms/iseries/Kconfig"
 source "arch/powerpc/platforms/chrp/Kconfig"
+source "arch/powerpc/platforms/512x/Kconfig"
 source "arch/powerpc/platforms/52xx/Kconfig"
 source "arch/powerpc/platforms/powermac/Kconfig"
 source "arch/powerpc/platforms/prep/Kconfig"
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index 7fc41104d53..69941ba7097 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -14,7 +14,7 @@ choice
 	  There are five families of 32 bit PowerPC chips supported.
 	  The most common ones are the desktop and server CPUs (601, 603,
 	  604, 740, 750, 74xx) CPUs from Freescale and IBM, with their
-	  embedded 52xx/82xx/83xx/86xx counterparts.
+	  embedded 512x/52xx/82xx/83xx/86xx counterparts.
 	  The other embeeded parts, namely 4xx, 8xx, e200 (55xx) and e500
 	  (85xx) each form a family of their own that is not compatible
 	  with the others.
@@ -22,7 +22,7 @@ choice
 	  If unsure, select 52xx/6xx/7xx/74xx/82xx/83xx/86xx.
 
 config 6xx
-	bool "52xx/6xx/7xx/74xx/82xx/83xx/86xx"
+	bool "512x/52xx/6xx/7xx/74xx/82xx/83xx/86xx"
 	select PPC_FPU
 
 config PPC_85xx
@@ -94,6 +94,7 @@ config 8xx
 	bool
 
 config E500
+	select FSL_EMB_PERFMON
 	bool
 
 config PPC_FPU
@@ -115,6 +116,9 @@ config FSL_BOOKE
 	depends on E200 || E500
 	default y
 
+config FSL_EMB_PERFMON
+	bool
+
 config PTE_64BIT
 	bool
 	depends on 44x || E500
@@ -221,7 +225,7 @@ config NR_CPUS
 
 config NOT_COHERENT_CACHE
 	bool
-	depends on 4xx || 8xx || E200
+	depends on 4xx || 8xx || E200 || PPC_MPC512x
 	default y
 
 config CHECK_CACHE_COHERENCY
diff --git a/arch/powerpc/platforms/Makefile b/arch/powerpc/platforms/Makefile
index 6d9079da5f5..a984894466d 100644
--- a/arch/powerpc/platforms/Makefile
+++ b/arch/powerpc/platforms/Makefile
@@ -11,6 +11,7 @@ endif
 obj-$(CONFIG_PPC_CHRP)		+= chrp/
 obj-$(CONFIG_40x)		+= 40x/
 obj-$(CONFIG_44x)		+= 44x/
+obj-$(CONFIG_PPC_MPC512x)	+= 512x/
 obj-$(CONFIG_PPC_MPC52xx)	+= 52xx/
 obj-$(CONFIG_PPC_8xx)		+= 8xx/
 obj-$(CONFIG_PPC_82xx)		+= 82xx/
diff --git a/arch/powerpc/platforms/cell/Kconfig b/arch/powerpc/platforms/cell/Kconfig
index 3a963b4a9be..2f169991896 100644
--- a/arch/powerpc/platforms/cell/Kconfig
+++ b/arch/powerpc/platforms/cell/Kconfig
@@ -54,6 +54,13 @@ config SPU_FS_64K_LS
 	  uses 4K pages. This can improve performances of applications
 	  using multiple SPEs by lowering the TLB pressure on them.
 
+config SPU_TRACE
+	tristate "SPU event tracing support"
+	depends on SPU_FS && MARKERS
+	help
+	  This option allows reading a trace of spu-related events through
+	  the sputrace file in procfs.
+
 config SPU_BASE
 	bool
 	default n
diff --git a/arch/powerpc/platforms/cell/axon_msi.c b/arch/powerpc/platforms/cell/axon_msi.c
index 095988f13bf..d95e71dee91 100644
--- a/arch/powerpc/platforms/cell/axon_msi.c
+++ b/arch/powerpc/platforms/cell/axon_msi.c
@@ -13,7 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/msi.h>
-#include <linux/reboot.h>
+#include <linux/of_platform.h>
 
 #include <asm/dcr.h>
 #include <asm/machdep.h>
@@ -65,14 +65,12 @@
 
 struct axon_msic {
 	struct irq_host *irq_host;
-	__le32 *fifo;
+	__le32 *fifo_virt;
+	dma_addr_t fifo_phys;
 	dcr_host_t dcr_host;
-	struct list_head list;
 	u32 read_offset;
 };
 
-static LIST_HEAD(axon_msic_list);
-
 static void msic_dcr_write(struct axon_msic *msic, unsigned int dcr_n, u32 val)
 {
 	pr_debug("axon_msi: dcr_write(0x%x, 0x%x)\n", val, dcr_n);
@@ -94,7 +92,7 @@ static void axon_msi_cascade(unsigned int irq, struct irq_desc *desc)
 
 	while (msic->read_offset != write_offset) {
 		idx  = msic->read_offset / sizeof(__le32);
-		msi  = le32_to_cpu(msic->fifo[idx]);
+		msi  = le32_to_cpu(msic->fifo_virt[idx]);
 		msi &= 0xFFFF;
 
 		pr_debug("axon_msi: woff %x roff %x msi %x\n",
@@ -139,6 +137,7 @@ static struct axon_msic *find_msi_translator(struct pci_dev *dev)
 
 	tmp = dn;
 	dn = of_find_node_by_phandle(*ph);
+	of_node_put(tmp);
 	if (!dn) {
 		dev_dbg(&dev->dev,
 			"axon_msi: msi-translator doesn't point to a node\n");
@@ -156,7 +155,6 @@ static struct axon_msic *find_msi_translator(struct pci_dev *dev)
 
 out_error:
 	of_node_put(dn);
-	of_node_put(tmp);
 
 	return msic;
 }
@@ -292,30 +290,24 @@ static struct irq_host_ops msic_host_ops = {
 	.map	= msic_host_map,
 };
 
-static int axon_msi_notify_reboot(struct notifier_block *nb,
-				  unsigned long code, void *data)
+static int axon_msi_shutdown(struct of_device *device)
 {
-	struct axon_msic *msic;
+	struct axon_msic *msic = device->dev.platform_data;
 	u32 tmp;
 
-	list_for_each_entry(msic, &axon_msic_list, list) {
-		pr_debug("axon_msi: disabling %s\n",
-			  msic->irq_host->of_node->full_name);
-		tmp  = dcr_read(msic->dcr_host, MSIC_CTRL_REG);
-		tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE;
-		msic_dcr_write(msic, MSIC_CTRL_REG, tmp);
-	}
+	pr_debug("axon_msi: disabling %s\n",
+		  msic->irq_host->of_node->full_name);
+	tmp  = dcr_read(msic->dcr_host, MSIC_CTRL_REG);
+	tmp &= ~MSIC_CTRL_ENABLE & ~MSIC_CTRL_IRQ_ENABLE;
+	msic_dcr_write(msic, MSIC_CTRL_REG, tmp);
 
 	return 0;
 }
 
-static struct notifier_block axon_msi_reboot_notifier = {
-	.notifier_call = axon_msi_notify_reboot
-};
-
-static int axon_msi_setup_one(struct device_node *dn)
+static int axon_msi_probe(struct of_device *device,
+			  const struct of_device_id *device_id)
 {
-	struct page *page;
+	struct device_node *dn = device->node;
 	struct axon_msic *msic;
 	unsigned int virq;
 	int dcr_base, dcr_len;
@@ -346,16 +338,14 @@ static int axon_msi_setup_one(struct device_node *dn)
 		goto out_free_msic;
 	}
 
-	page = alloc_pages_node(of_node_to_nid(dn), GFP_KERNEL,
-				get_order(MSIC_FIFO_SIZE_BYTES));
-	if (!page) {
+	msic->fifo_virt = dma_alloc_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES,
+					     &msic->fifo_phys, GFP_KERNEL);
+	if (!msic->fifo_virt) {
 		printk(KERN_ERR "axon_msi: couldn't allocate fifo for %s\n",
 		       dn->full_name);
 		goto out_free_msic;
 	}
 
-	msic->fifo = page_address(page);
-
 	msic->irq_host = irq_alloc_host(of_node_get(dn), IRQ_HOST_MAP_NOMAP,
 					NR_IRQS, &msic_host_ops, 0);
 	if (!msic->irq_host) {
@@ -378,14 +368,18 @@ static int axon_msi_setup_one(struct device_node *dn)
 	pr_debug("axon_msi: irq 0x%x setup for axon_msi\n", virq);
 
 	/* Enable the MSIC hardware */
-	msic_dcr_write(msic, MSIC_BASE_ADDR_HI_REG, (u64)msic->fifo >> 32);
+	msic_dcr_write(msic, MSIC_BASE_ADDR_HI_REG, msic->fifo_phys >> 32);
 	msic_dcr_write(msic, MSIC_BASE_ADDR_LO_REG,
-				  (u64)msic->fifo & 0xFFFFFFFF);
+				  msic->fifo_phys & 0xFFFFFFFF);
 	msic_dcr_write(msic, MSIC_CTRL_REG,
 			MSIC_CTRL_IRQ_ENABLE | MSIC_CTRL_ENABLE |
 			MSIC_CTRL_FIFO_SIZE);
 
-	list_add(&msic->list, &axon_msic_list);
+	device->dev.platform_data = msic;
+
+	ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs;
+	ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs;
+	ppc_md.msi_check_device = axon_msi_check_device;
 
 	printk(KERN_DEBUG "axon_msi: setup MSIC on %s\n", dn->full_name);
 
@@ -394,7 +388,8 @@ static int axon_msi_setup_one(struct device_node *dn)
 out_free_host:
 	kfree(msic->irq_host);
 out_free_fifo:
-	__free_pages(virt_to_page(msic->fifo), get_order(MSIC_FIFO_SIZE_BYTES));
+	dma_free_coherent(&device->dev, MSIC_FIFO_SIZE_BYTES, msic->fifo_virt,
+			  msic->fifo_phys);
 out_free_msic:
 	kfree(msic);
 out:
@@ -402,28 +397,24 @@ out:
 	return -1;
 }
 
-static int axon_msi_init(void)
-{
-	struct device_node *dn;
-	int found = 0;
-
-	pr_debug("axon_msi: initialising ...\n");
-
-	for_each_compatible_node(dn, NULL, "ibm,axon-msic") {
-		if (axon_msi_setup_one(dn) == 0)
-			found++;
-	}
-
-	if (found) {
-		ppc_md.setup_msi_irqs = axon_msi_setup_msi_irqs;
-		ppc_md.teardown_msi_irqs = axon_msi_teardown_msi_irqs;
-		ppc_md.msi_check_device = axon_msi_check_device;
-
-		register_reboot_notifier(&axon_msi_reboot_notifier);
+static const struct of_device_id axon_msi_device_id[] = {
+	{
+		.compatible	= "ibm,axon-msic"
+	},
+	{}
+};
 
-		pr_debug("axon_msi: registered callbacks!\n");
-	}
+static struct of_platform_driver axon_msi_driver = {
+	.match_table	= axon_msi_device_id,
+	.probe		= axon_msi_probe,
+	.shutdown	= axon_msi_shutdown,
+	.driver		= {
+		.name	= "axon-msi"
+	},
+};
 
-	return 0;
+static int __init axon_msi_init(void)
+{
+	return of_register_platform_driver(&axon_msi_driver);
 }
-arch_initcall(axon_msi_init);
+subsys_initcall(axon_msi_init);
diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index e6534b519c9..a7f609b3b87 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -98,7 +98,7 @@ static int __init cell_publish_devices(void)
 	}
 	return 0;
 }
-machine_device_initcall(cell, cell_publish_devices);
+machine_subsys_initcall(cell, cell_publish_devices);
 
 static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc)
 {
diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile
index d3a349fb42e..99610a6361f 100644
--- a/arch/powerpc/platforms/cell/spufs/Makefile
+++ b/arch/powerpc/platforms/cell/spufs/Makefile
@@ -4,6 +4,8 @@ spufs-y += inode.o file.o context.o syscalls.o coredump.o
 spufs-y += sched.o backing_ops.o hw_ops.o run.o gang.o
 spufs-y += switch.o fault.o lscsa_alloc.o
 
+obj-$(CONFIG_SPU_TRACE)	+= sputrace.o
+
 # Rules to build switch.o with the help of SPU tool chain
 SPU_CROSS	:= spu-
 SPU_CC		:= $(SPU_CROSS)gcc
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 3fcd06418b0..1018acd1746 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -29,6 +29,7 @@
 #include <linux/poll.h>
 #include <linux/ptrace.h>
 #include <linux/seq_file.h>
+#include <linux/marker.h>
 
 #include <asm/io.h>
 #include <asm/semaphore.h>
@@ -358,6 +359,8 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma,
 	struct spu_context *ctx = vma->vm_file->private_data;
 	unsigned long area, offset = address - vma->vm_start;
 
+	spu_context_nospu_trace(spufs_ps_nopfn__enter, ctx);
+
 	offset += vma->vm_pgoff << PAGE_SHIFT;
 	if (offset >= ps_size)
 		return NOPFN_SIGBUS;
@@ -375,11 +378,14 @@ static unsigned long spufs_ps_nopfn(struct vm_area_struct *vma,
 
 	if (ctx->state == SPU_STATE_SAVED) {
 		up_read(&current->mm->mmap_sem);
+		spu_context_nospu_trace(spufs_ps_nopfn__sleep, ctx);
 		spufs_wait(ctx->run_wq, ctx->state == SPU_STATE_RUNNABLE);
+		spu_context_trace(spufs_ps_nopfn__wake, ctx, ctx->spu);
 		down_read(&current->mm->mmap_sem);
 	} else {
 		area = ctx->spu->problem_phys + ps_offs;
 		vm_insert_pfn(vma, address, (area + offset) >> PAGE_SHIFT);
+		spu_context_trace(spufs_ps_nopfn__insert, ctx, ctx->spu);
 	}
 
 	spu_release(ctx);
diff --git a/arch/powerpc/platforms/cell/spufs/inode.c b/arch/powerpc/platforms/cell/spufs/inode.c
index c0e968a4c21..90784c029f2 100644
--- a/arch/powerpc/platforms/cell/spufs/inode.c
+++ b/arch/powerpc/platforms/cell/spufs/inode.c
@@ -322,7 +322,7 @@ static struct spu_context *
 spufs_assert_affinity(unsigned int flags, struct spu_gang *gang,
 						struct file *filp)
 {
-	struct spu_context *tmp, *neighbor;
+	struct spu_context *tmp, *neighbor, *err;
 	int count, node;
 	int aff_supp;
 
@@ -354,11 +354,15 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang,
 		if (!list_empty(&neighbor->aff_list) && !(neighbor->aff_head) &&
 		    !list_is_last(&neighbor->aff_list, &gang->aff_list_head) &&
 		    !list_entry(neighbor->aff_list.next, struct spu_context,
-		    aff_list)->aff_head)
-			return ERR_PTR(-EEXIST);
+		    aff_list)->aff_head) {
+			err = ERR_PTR(-EEXIST);
+			goto out_put_neighbor;
+		}
 
-		if (gang != neighbor->gang)
-			return ERR_PTR(-EINVAL);
+		if (gang != neighbor->gang) {
+			err = ERR_PTR(-EINVAL);
+			goto out_put_neighbor;
+		}
 
 		count = 1;
 		list_for_each_entry(tmp, &gang->aff_list_head, aff_list)
@@ -372,11 +376,17 @@ spufs_assert_affinity(unsigned int flags, struct spu_gang *gang,
 				break;
 		}
 
-		if (node == MAX_NUMNODES)
-			return ERR_PTR(-EEXIST);
+		if (node == MAX_NUMNODES) {
+			err = ERR_PTR(-EEXIST);
+			goto out_put_neighbor;
+		}
 	}
 
 	return neighbor;
+
+out_put_neighbor:
+	put_spu_context(neighbor);
+	return err;
 }
 
 static void
@@ -454,9 +464,12 @@ spufs_create_context(struct inode *inode, struct dentry *dentry,
 	if (ret)
 		goto out_aff_unlock;
 
-	if (affinity)
+	if (affinity) {
 		spufs_set_affinity(flags, SPUFS_I(dentry->d_inode)->i_ctx,
 								neighbor);
+		if (neighbor)
+			put_spu_context(neighbor);
+	}
 
 	/*
 	 * get references for dget and mntget, will be released
diff --git a/arch/powerpc/platforms/cell/spufs/run.c b/arch/powerpc/platforms/cell/spufs/run.c
index c01a09da1e5..b4814c740d8 100644
--- a/arch/powerpc/platforms/cell/spufs/run.c
+++ b/arch/powerpc/platforms/cell/spufs/run.c
@@ -410,8 +410,11 @@ long spufs_run_spu(struct spu_context *ctx, u32 *npc, u32 *event)
 	 * since we have TIF_SINGLESTEP set, thus the kernel will do
 	 * it upon return from the syscall anyawy
 	 */
-	if ((status & SPU_STATUS_STOPPED_BY_STOP)
-	    && (status >> SPU_STOP_STATUS_SHIFT) == 0x3fff) {
+	if (unlikely(status & SPU_STATUS_SINGLE_STEP))
+		ret = -ERESTARTSYS;
+
+	else if (unlikely((status & SPU_STATUS_STOPPED_BY_STOP)
+	    && (status >> SPU_STOP_STATUS_SHIFT) == 0x3fff)) {
 		force_sig(SIGTRAP, current);
 		ret = -ERESTARTSYS;
 	}
diff --git a/arch/powerpc/platforms/cell/spufs/sched.c b/arch/powerpc/platforms/cell/spufs/sched.c
index 00d914232af..5915343e259 100644
--- a/arch/powerpc/platforms/cell/spufs/sched.c
+++ b/arch/powerpc/platforms/cell/spufs/sched.c
@@ -39,6 +39,7 @@
 #include <linux/pid_namespace.h>
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <linux/marker.h>
 
 #include <asm/io.h>
 #include <asm/mmu_context.h>
@@ -216,8 +217,8 @@ void do_notify_spus_active(void)
  */
 static void spu_bind_context(struct spu *spu, struct spu_context *ctx)
 {
-	pr_debug("%s: pid=%d SPU=%d NODE=%d\n", __FUNCTION__, current->pid,
-		 spu->number, spu->node);
+	spu_context_trace(spu_bind_context__enter, ctx, spu);
+
 	spuctx_switch_state(ctx, SPU_UTIL_SYSTEM);
 
 	if (ctx->flags & SPU_CREATE_NOSCHED)
@@ -399,8 +400,8 @@ static int has_affinity(struct spu_context *ctx)
  */
 static void spu_unbind_context(struct spu *spu, struct spu_context *ctx)
 {
-	pr_debug("%s: unbind pid=%d SPU=%d NODE=%d\n", __FUNCTION__,
-		 spu->pid, spu->number, spu->node);
+	spu_context_trace(spu_unbind_context__enter, ctx, spu);
+
 	spuctx_switch_state(ctx, SPU_UTIL_SYSTEM);
 
  	if (spu->ctx->flags & SPU_CREATE_NOSCHED)
@@ -528,6 +529,8 @@ static struct spu *spu_get_idle(struct spu_context *ctx)
 	struct spu *spu, *aff_ref_spu;
 	int node, n;
 
+	spu_context_nospu_trace(spu_get_idle__enter, ctx);
+
 	if (ctx->gang) {
 		mutex_lock(&ctx->gang->aff_mutex);
 		if (has_affinity(ctx)) {
@@ -546,8 +549,7 @@ static struct spu *spu_get_idle(struct spu_context *ctx)
 			if (atomic_dec_and_test(&ctx->gang->aff_sched_count))
 				ctx->gang->aff_ref_spu = NULL;
 			mutex_unlock(&ctx->gang->aff_mutex);
-
-			return NULL;
+			goto not_found;
 		}
 		mutex_unlock(&ctx->gang->aff_mutex);
 	}
@@ -565,12 +567,14 @@ static struct spu *spu_get_idle(struct spu_context *ctx)
 		mutex_unlock(&cbe_spu_info[node].list_mutex);
 	}
 
+ not_found:
+	spu_context_nospu_trace(spu_get_idle__not_found, ctx);
 	return NULL;
 
  found:
 	spu->alloc_state = SPU_USED;
 	mutex_unlock(&cbe_spu_info[node].list_mutex);
-	pr_debug("Got SPU %d %d\n", spu->number, spu->node);
+	spu_context_trace(spu_get_idle__found, ctx, spu);
 	spu_init_channels(spu);
 	return spu;
 }
@@ -587,6 +591,8 @@ static struct spu *find_victim(struct spu_context *ctx)
 	struct spu *spu;
 	int node, n;
 
+	spu_context_nospu_trace(spu_find_vitim__enter, ctx);
+
 	/*
 	 * Look for a possible preemption candidate on the local node first.
 	 * If there is no candidate look at the other nodes.  This isn't
@@ -640,6 +646,8 @@ static struct spu *find_victim(struct spu_context *ctx)
 				goto restart;
 			}
 
+			spu_context_trace(__spu_deactivate__unload, ctx, spu);
+
 			mutex_lock(&cbe_spu_info[node].list_mutex);
 			cbe_spu_info[node].nr_active--;
 			spu_unbind_context(spu, victim);
@@ -822,6 +830,7 @@ static int __spu_deactivate(struct spu_context *ctx, int force, int max_prio)
  */
 void spu_deactivate(struct spu_context *ctx)
 {
+	spu_context_nospu_trace(spu_deactivate__enter, ctx);
 	__spu_deactivate(ctx, 1, MAX_PRIO);
 }
 
@@ -835,6 +844,7 @@ void spu_deactivate(struct spu_context *ctx)
  */
 void spu_yield(struct spu_context *ctx)
 {
+	spu_context_nospu_trace(spu_yield__enter, ctx);
 	if (!(ctx->flags & SPU_CREATE_NOSCHED)) {
 		mutex_lock(&ctx->state_mutex);
 		__spu_deactivate(ctx, 0, MAX_PRIO);
@@ -864,11 +874,15 @@ static noinline void spusched_tick(struct spu_context *ctx)
 		goto out;
 
 	spu = ctx->spu;
+
+	spu_context_trace(spusched_tick__preempt, ctx, spu);
+
 	new = grab_runnable_context(ctx->prio + 1, spu->node);
 	if (new) {
 		spu_unschedule(spu, ctx);
 		spu_add_to_rq(ctx);
 	} else {
+		spu_context_nospu_trace(spusched_tick__newslice, ctx);
 		ctx->time_slice++;
 	}
 out:
diff --git a/arch/powerpc/platforms/cell/spufs/spufs.h b/arch/powerpc/platforms/cell/spufs/spufs.h
index 0e114038ea6..795a1b52538 100644
--- a/arch/powerpc/platforms/cell/spufs/spufs.h
+++ b/arch/powerpc/platforms/cell/spufs/spufs.h
@@ -325,4 +325,9 @@ extern void spu_free_lscsa(struct spu_state *csa);
 extern void spuctx_switch_state(struct spu_context *ctx,
 		enum spu_utilization_state new_state);
 
+#define spu_context_trace(name, ctx, spu) \
+	trace_mark(name, "%p %p", ctx, spu);
+#define spu_context_nospu_trace(name, ctx) \
+	trace_mark(name, "%p", ctx);
+
 #endif
diff --git a/arch/powerpc/platforms/cell/spufs/sputrace.c b/arch/powerpc/platforms/cell/spufs/sputrace.c
new file mode 100644
index 00000000000..2b1953f6f12
--- /dev/null
+++ b/arch/powerpc/platforms/cell/spufs/sputrace.c
@@ -0,0 +1,250 @@
+/*
+ * Copyright (C) 2007 IBM Deutschland Entwicklung GmbH
+ *	Released under GPL v2.
+ *
+ * Partially based on net/ipv4/tcp_probe.c.
+ *
+ * Simple tracing facility for spu contexts.
+ */
+#include <linux/sched.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/marker.h>
+#include <linux/proc_fs.h>
+#include <linux/wait.h>
+#include <asm/atomic.h>
+#include <asm/uaccess.h>
+#include "spufs.h"
+
+struct spu_probe {
+	const char *name;
+	const char *format;
+	marker_probe_func *probe_func;
+};
+
+struct sputrace {
+	ktime_t tstamp;
+	int owner_tid; /* owner */
+	int curr_tid;
+	const char *name;
+	int number;
+};
+
+static int bufsize __read_mostly = 16384;
+MODULE_PARM_DESC(bufsize, "Log buffer size (number of records)");
+module_param(bufsize, int, 0);
+
+
+static DEFINE_SPINLOCK(sputrace_lock);
+static DECLARE_WAIT_QUEUE_HEAD(sputrace_wait);
+static ktime_t sputrace_start;
+static unsigned long sputrace_head, sputrace_tail;
+static struct sputrace *sputrace_log;
+
+static int sputrace_used(void)
+{
+	return (sputrace_head - sputrace_tail) % bufsize;
+}
+
+static inline int sputrace_avail(void)
+{
+	return bufsize - sputrace_used();
+}
+
+static int sputrace_sprint(char *tbuf, int n)
+{
+	const struct sputrace *t = sputrace_log + sputrace_tail % bufsize;
+	struct timespec tv =
+		ktime_to_timespec(ktime_sub(t->tstamp, sputrace_start));
+
+	return snprintf(tbuf, n,
+		"[%lu.%09lu] %d: %s (thread = %d, spu = %d)\n",
+		(unsigned long) tv.tv_sec,
+		(unsigned long) tv.tv_nsec,
+		t->owner_tid,
+		t->name,
+		t->curr_tid,
+		t->number);
+}
+
+static ssize_t sputrace_read(struct file *file, char __user *buf,
+		size_t len, loff_t *ppos)
+{
+	int error = 0, cnt = 0;
+
+	if (!buf || len < 0)
+		return -EINVAL;
+
+	while (cnt < len) {
+		char tbuf[128];
+		int width;
+
+		error = wait_event_interruptible(sputrace_wait,
+						 sputrace_used() > 0);
+		if (error)
+			break;
+
+		spin_lock(&sputrace_lock);
+		if (sputrace_head == sputrace_tail) {
+			spin_unlock(&sputrace_lock);
+			continue;
+		}
+
+		width = sputrace_sprint(tbuf, sizeof(tbuf));
+		if (width < len)
+			sputrace_tail = (sputrace_tail + 1) % bufsize;
+		spin_unlock(&sputrace_lock);
+
+		if (width >= len)
+			break;
+
+		error = copy_to_user(buf + cnt, tbuf, width);
+		if (error)
+			break;
+		cnt += width;
+	}
+
+	return cnt == 0 ? error : cnt;
+}
+
+static int sputrace_open(struct inode *inode, struct file *file)
+{
+	spin_lock(&sputrace_lock);
+	sputrace_head = sputrace_tail = 0;
+	sputrace_start = ktime_get();
+	spin_unlock(&sputrace_lock);
+
+	return 0;
+}
+
+static const struct file_operations sputrace_fops = {
+	.owner	= THIS_MODULE,
+	.open	= sputrace_open,
+	.read	= sputrace_read,
+};
+
+static void sputrace_log_item(const char *name, struct spu_context *ctx,
+		struct spu *spu)
+{
+	spin_lock(&sputrace_lock);
+	if (sputrace_avail() > 1) {
+		struct sputrace *t = sputrace_log + sputrace_head;
+
+		t->tstamp = ktime_get();
+		t->owner_tid = ctx->tid;
+		t->name = name;
+		t->curr_tid = current->pid;
+		t->number = spu ? spu->number : -1;
+
+		sputrace_head = (sputrace_head + 1) % bufsize;
+	} else {
+		printk(KERN_WARNING
+		       "sputrace: lost samples due to full buffer.\n");
+	}
+	spin_unlock(&sputrace_lock);
+
+	wake_up(&sputrace_wait);
+}
+
+static void spu_context_event(const struct marker *mdata,
+		void *private, const char *format, ...)
+{
+	struct spu_probe *p = mdata->private;
+	va_list ap;
+	struct spu_context *ctx;
+	struct spu *spu;
+
+	va_start(ap, format);
+	ctx = va_arg(ap, struct spu_context *);
+	spu = va_arg(ap, struct spu *);
+
+	sputrace_log_item(p->name, ctx, spu);
+	va_end(ap);
+}
+
+static void spu_context_nospu_event(const struct marker *mdata,
+		void *private, const char *format, ...)
+{
+	struct spu_probe *p = mdata->private;
+	va_list ap;
+	struct spu_context *ctx;
+
+	va_start(ap, format);
+	ctx = va_arg(ap, struct spu_context *);
+
+	sputrace_log_item(p->name, ctx, NULL);
+	va_end(ap);
+}
+
+struct spu_probe spu_probes[] = {
+	{ "spu_bind_context__enter", "%p %p", spu_context_event },
+	{ "spu_unbind_context__enter", "%p %p", spu_context_event },
+	{ "spu_get_idle__enter", "%p", spu_context_nospu_event },
+	{ "spu_get_idle__found", "%p %p", spu_context_event },
+	{ "spu_get_idle__not_found", "%p", spu_context_nospu_event },
+	{ "spu_find_victim__enter", "%p", spu_context_nospu_event },
+	{ "spusched_tick__preempt", "%p %p", spu_context_event },
+	{ "spusched_tick__newslice", "%p", spu_context_nospu_event },
+	{ "spu_yield__enter", "%p", spu_context_nospu_event },
+	{ "spu_deactivate__enter", "%p", spu_context_nospu_event },
+	{ "__spu_deactivate__unload", "%p %p", spu_context_event },
+	{ "spufs_ps_nopfn__enter", "%p", spu_context_nospu_event },
+	{ "spufs_ps_nopfn__sleep", "%p", spu_context_nospu_event },
+	{ "spufs_ps_nopfn__wake", "%p %p", spu_context_event },
+	{ "spufs_ps_nopfn__insert", "%p %p", spu_context_event },
+	{ "spu_acquire_saved__enter", "%p", spu_context_nospu_event },
+	{ "destroy_spu_context__enter", "%p", spu_context_nospu_event },
+};
+
+static int __init sputrace_init(void)
+{
+	struct proc_dir_entry *entry;
+	int i, error = -ENOMEM;
+
+	sputrace_log = kcalloc(sizeof(struct sputrace),
+				bufsize, GFP_KERNEL);
+	if (!sputrace_log)
+		goto out;
+
+	entry = create_proc_entry("sputrace", S_IRUSR, NULL);
+	if (!entry)
+		goto out_free_log;
+	entry->proc_fops = &sputrace_fops;
+
+	for (i = 0; i < ARRAY_SIZE(spu_probes); i++) {
+		struct spu_probe *p = &spu_probes[i];
+
+		error = marker_probe_register(p->name, p->format,
+					      p->probe_func, p);
+		if (error)
+			printk(KERN_INFO "Unable to register probe %s\n",
+					p->name);
+
+		error = marker_arm(p->name);
+		if (error)
+			printk(KERN_INFO "Unable to arm probe %s\n", p->name);
+	}
+
+	return 0;
+
+out_free_log:
+	kfree(sputrace_log);
+out:
+	return -ENOMEM;
+}
+
+static void __exit sputrace_exit(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(spu_probes); i++)
+		marker_probe_unregister(spu_probes[i].name);
+
+	remove_proc_entry("sputrace", NULL);
+	kfree(sputrace_log);
+}
+
+module_init(sputrace_init);
+module_exit(sputrace_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/platforms/embedded6xx/storcenter.c b/arch/powerpc/platforms/embedded6xx/storcenter.c
index e12e9d29871..8864e488498 100644
--- a/arch/powerpc/platforms/embedded6xx/storcenter.c
+++ b/arch/powerpc/platforms/embedded6xx/storcenter.c
@@ -132,33 +132,18 @@ static void __init storcenter_init_IRQ(void)
 
 	paddr = (phys_addr_t)of_translate_address(dnp, prop);
 	mpic = mpic_alloc(dnp, paddr, MPIC_PRIMARY | MPIC_WANTS_RESET,
-			4, 32, " EPIC     ");
+			16, 32, " OpenPIC  ");
 
 	of_node_put(dnp);
 
 	BUG_ON(mpic == NULL);
 
-	/* PCI IRQs */
 	/*
-	 * 2.6.12 patch:
-	 *         openpic_set_sources(0, 5, OpenPIC_Addr + 0x10200);
-	 *         openpic_set_sources(5, 2, OpenPIC_Addr + 0x11120);
-	 *         first_irq, num_irqs, __iomem first_ISR
-	 *         o_ss: i, src: 0, fdf50200
-	 *         o_ss: i, src: 1, fdf50220
-	 *         o_ss: i, src: 2, fdf50240
-	 *         o_ss: i, src: 3, fdf50260
-	 *         o_ss: i, src: 4, fdf50280
-	 *         o_ss: i, src: 5, fdf51120
-	 *         o_ss: i, src: 6, fdf51140
+	 * 16 Serial Interrupts followed by 16 Internal Interrupts.
+	 * I2C is the second internal, so it is at 17, 0x11020.
 	 */
 	mpic_assign_isu(mpic, 0, paddr + 0x10200);
-	mpic_assign_isu(mpic, 1, paddr + 0x10220);
-	mpic_assign_isu(mpic, 2, paddr + 0x10240);
-	mpic_assign_isu(mpic, 3, paddr + 0x10260);
-	mpic_assign_isu(mpic, 4, paddr + 0x10280);
-	mpic_assign_isu(mpic, 5, paddr + 0x11120);
-	mpic_assign_isu(mpic, 6, paddr + 0x11140);
+	mpic_assign_isu(mpic, 1, paddr + 0x11000);
 
 	mpic_init(mpic);
 }
@@ -178,7 +163,7 @@ static int __init storcenter_probe(void)
 {
 	unsigned long root = of_get_flat_dt_root();
 
-	return of_flat_dt_is_compatible(root, "storcenter");
+	return of_flat_dt_is_compatible(root, "iomega,storcenter");
 }
 
 define_machine(storcenter){
diff --git a/arch/powerpc/platforms/pseries/hotplug-cpu.c b/arch/powerpc/platforms/pseries/hotplug-cpu.c
index c4ad54e0f28..1f032483c02 100644
--- a/arch/powerpc/platforms/pseries/hotplug-cpu.c
+++ b/arch/powerpc/platforms/pseries/hotplug-cpu.c
@@ -58,7 +58,7 @@ static void pseries_mach_cpu_die(void)
 {
 	local_irq_disable();
 	idle_task_exit();
-	xics_teardown_cpu(0);
+	xics_teardown_cpu();
 	unregister_slb_shadow(hard_smp_processor_id(), __pa(get_slb_shadow()));
 	rtas_stop_self();
 	/* Should never get here... */
diff --git a/arch/powerpc/platforms/pseries/kexec.c b/arch/powerpc/platforms/pseries/kexec.c
index 412a5e7aff2..e9dd5fe081c 100644
--- a/arch/powerpc/platforms/pseries/kexec.c
+++ b/arch/powerpc/platforms/pseries/kexec.c
@@ -54,7 +54,7 @@ void __init setup_kexec_cpu_down_mpic(void)
 static void pseries_kexec_cpu_down_xics(int crash_shutdown, int secondary)
 {
 	pseries_kexec_cpu_down(crash_shutdown, secondary);
-	xics_teardown_cpu(secondary);
+	xics_kexec_teardown_cpu(secondary);
 }
 
 void __init setup_kexec_cpu_down_xics(void)
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index c02f8742c54..2800fced8c7 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -167,6 +167,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
 
 	if ((child = of_get_next_child(np, NULL))) {
 		of_node_put(child);
+		of_node_put(parent);
 		return -EBUSY;
 	}
 
diff --git a/arch/powerpc/platforms/pseries/xics.c b/arch/powerpc/platforms/pseries/xics.c
index 8f8dd9c3ca6..ca52b587166 100644
--- a/arch/powerpc/platforms/pseries/xics.c
+++ b/arch/powerpc/platforms/pseries/xics.c
@@ -160,6 +160,46 @@ static inline void lpar_qirr_info(int n_cpu , u8 value)
 
 /* High level handlers and init code */
 
+static void xics_update_irq_servers(void)
+{
+	int i, j;
+	struct device_node *np;
+	u32 ilen;
+	const u32 *ireg, *isize;
+	u32 hcpuid;
+
+	/* Find the server numbers for the boot cpu. */
+	np = of_get_cpu_node(boot_cpuid, NULL);
+	BUG_ON(!np);
+
+	ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen);
+	if (!ireg) {
+		of_node_put(np);
+		return;
+	}
+
+	i = ilen / sizeof(int);
+	hcpuid = get_hard_smp_processor_id(boot_cpuid);
+
+	/* Global interrupt distribution server is specified in the last
+	 * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last
+	 * entry fom this property for current boot cpu id and use it as
+	 * default distribution server
+	 */
+	for (j = 0; j < i; j += 2) {
+		if (ireg[j] == hcpuid) {
+			default_server = hcpuid;
+			default_distrib_server = ireg[j+1];
+
+			isize = of_get_property(np,
+					"ibm,interrupt-server#-size", NULL);
+			if (isize)
+				interrupt_server_size = *isize;
+		}
+	}
+
+	of_node_put(np);
+}
 
 #ifdef CONFIG_SMP
 static int get_irq_server(unsigned int virq, unsigned int strict_check)
@@ -169,6 +209,9 @@ static int get_irq_server(unsigned int virq, unsigned int strict_check)
 	cpumask_t cpumask = irq_desc[virq].affinity;
 	cpumask_t tmp = CPU_MASK_NONE;
 
+	if (! cpu_isset(default_server, cpu_online_map))
+		xics_update_irq_servers();
+
 	if (!distribute_irqs)
 		return default_server;
 
@@ -658,39 +701,11 @@ static void __init xics_setup_8259_cascade(void)
 	set_irq_chained_handler(cascade, pseries_8259_cascade);
 }
 
-static struct device_node *cpuid_to_of_node(int cpu)
-{
-	struct device_node *np;
-	u32 hcpuid = get_hard_smp_processor_id(cpu);
-
-	for_each_node_by_type(np, "cpu") {
-		int i, len;
-		const u32 *intserv;
-
-		intserv = of_get_property(np, "ibm,ppc-interrupt-server#s",
-					&len);
-
-		if (!intserv)
-			intserv = of_get_property(np, "reg", &len);
-
-		i = len / sizeof(u32);
-
-		while (i--)
-			if (intserv[i] == hcpuid)
-				return np;
-	}
-
-	return NULL;
-}
-
 void __init xics_init_IRQ(void)
 {
-	int i, j;
 	struct device_node *np;
-	u32 ilen, indx = 0;
-	const u32 *ireg, *isize;
+	u32 indx = 0;
 	int found = 0;
-	u32 hcpuid;
 
 	ppc64_boot_msg(0x20, "XICS Init");
 
@@ -709,34 +724,7 @@ void __init xics_init_IRQ(void)
 		return;
 
 	xics_init_host();
-
-	/* Find the server numbers for the boot cpu. */
-	np = cpuid_to_of_node(boot_cpuid);
-	BUG_ON(!np);
-	ireg = of_get_property(np, "ibm,ppc-interrupt-gserver#s", &ilen);
-	if (!ireg)
-		goto skip_gserver_check;
-	i = ilen / sizeof(int);
-	hcpuid = get_hard_smp_processor_id(boot_cpuid);
-
-	/* Global interrupt distribution server is specified in the last
-	 * entry of "ibm,ppc-interrupt-gserver#s" property. Get the last
-	 * entry fom this property for current boot cpu id and use it as
-	 * default distribution server
-	 */
-	for (j = 0; j < i; j += 2) {
-		if (ireg[j] == hcpuid) {
-			default_server = hcpuid;
-			default_distrib_server = ireg[j+1];
-
-			isize = of_get_property(np,
-					"ibm,interrupt-server#-size", NULL);
-			if (isize)
-				interrupt_server_size = *isize;
-		}
-	}
-skip_gserver_check:
-	of_node_put(np);
+	xics_update_irq_servers();
 
 	if (firmware_has_feature(FW_FEATURE_LPAR))
 		ppc_md.get_irq = xics_get_irq_lpar;
@@ -775,11 +763,9 @@ void xics_request_IPIs(void)
 }
 #endif /* CONFIG_SMP */
 
-void xics_teardown_cpu(int secondary)
+void xics_teardown_cpu()
 {
 	int cpu = smp_processor_id();
-	unsigned int ipi;
-	struct irq_desc *desc;
 
 	xics_set_cpu_priority(0);
 
@@ -790,9 +776,17 @@ void xics_teardown_cpu(int secondary)
 		lpar_qirr_info(cpu, 0xff);
 	else
 		direct_qirr_info(cpu, 0xff);
+}
+
+void xics_kexec_teardown_cpu(int secondary)
+{
+	unsigned int ipi;
+	struct irq_desc *desc;
+
+	xics_teardown_cpu();
 
 	/*
-	 * we need to EOI the IPI if we got here from kexec down IPI
+	 * we need to EOI the IPI
 	 *
 	 * probably need to check all the other interrupts too
 	 * should we be flagging idle loop instead?
@@ -880,8 +874,8 @@ void xics_migrate_irqs_away(void)
 		       virq, cpu);
 
 		/* Reset affinity to all cpus */
+		irq_desc[virq].affinity = CPU_MASK_ALL;
 		desc->chip->set_affinity(virq, CPU_MASK_ALL);
-		irq_desc[irq].affinity = CPU_MASK_ALL;
 unlock:
 		spin_unlock_irqrestore(&desc->lock, flags);
 	}
diff --git a/arch/powerpc/platforms/pseries/xics.h b/arch/powerpc/platforms/pseries/xics.h
index 9ffd809d29e..c26bcff47b6 100644
--- a/arch/powerpc/platforms/pseries/xics.h
+++ b/arch/powerpc/platforms/pseries/xics.h
@@ -16,7 +16,8 @@
 
 extern void xics_init_IRQ(void);
 extern void xics_setup_cpu(void);
-extern void xics_teardown_cpu(int secondary);
+extern void xics_teardown_cpu(void);
+extern void xics_kexec_teardown_cpu(int secondary);
 extern void xics_cause_IPI(int cpu);
 extern  void xics_request_IPIs(void);
 extern void xics_migrate_irqs_away(void);
diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c
index 427027c7ea0..437e48d3ae3 100644
--- a/arch/powerpc/sysdev/dcr.c
+++ b/arch/powerpc/sysdev/dcr.c
@@ -137,5 +137,6 @@ void dcr_unmap(dcr_host_t host, unsigned int dcr_c)
 	h.token = NULL;
 }
 EXPORT_SYMBOL_GPL(dcr_unmap);
-
-#endif /* !defined(CONFIG_PPC_DCR_NATIVE) */
+#else	/* defined(CONFIG_PPC_DCR_NATIVE) */
+DEFINE_SPINLOCK(dcr_ind_lock);
+#endif	/* !defined(CONFIG_PPC_DCR_NATIVE) */
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index e48b20e934c..2c5388ce902 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -1342,7 +1342,7 @@ static int __init of_fsl_spi_probe(char *type, char *compatible, u32 sysclk,
 		if (ret)
 			goto unreg;
 
-		ret = platform_device_register(pdev);
+		ret = platform_device_add(pdev);
 		if (ret)
 			goto unreg;
 
diff --git a/arch/powerpc/sysdev/mpc8xx_pic.c b/arch/powerpc/sysdev/mpc8xx_pic.c
index 0e74a4bd982..5d2d5522ef4 100644
--- a/arch/powerpc/sysdev/mpc8xx_pic.c
+++ b/arch/powerpc/sysdev/mpc8xx_pic.c
@@ -174,15 +174,19 @@ int mpc8xx_pic_init(void)
 		goto out;
 
 	siu_reg = ioremap(res.start, res.end - res.start + 1);
-	if (siu_reg == NULL)
-		return -EINVAL;
+	if (siu_reg == NULL) {
+		ret = -EINVAL;
+		goto out;
+	}
 
-	mpc8xx_pic_host = irq_alloc_host(of_node_get(np), IRQ_HOST_MAP_LINEAR,
+	mpc8xx_pic_host = irq_alloc_host(np, IRQ_HOST_MAP_LINEAR,
 					 64, &mpc8xx_pic_host_ops, 64);
 	if (mpc8xx_pic_host == NULL) {
 		printk(KERN_ERR "MPC8xx PIC: failed to allocate irq host!\n");
 		ret = -ENOMEM;
+		goto out;
 	}
+	return 0;
 
 out:
 	of_node_put(np);
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index 5ef844da935..6efbd5e5bb1 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -66,7 +66,7 @@ phys_addr_t get_qe_base(void)
 {
 	struct device_node *qe;
 	unsigned int size;
-	const void *prop;
+	const u32 *prop;
 
 	if (qebase != -1)
 		return qebase;
@@ -79,7 +79,8 @@ phys_addr_t get_qe_base(void)
 	}
 
 	prop = of_get_property(qe, "reg", &size);
-	qebase = of_translate_address(qe, prop);
+	if (prop && size >= sizeof(*prop))
+		qebase = of_translate_address(qe, prop);
 	of_node_put(qe);
 
 	return qebase;
@@ -172,10 +173,9 @@ unsigned int get_brg_clk(void)
 	}
 
 	prop = of_get_property(qe, "brg-frequency", &size);
-	if (!prop || size != sizeof(*prop))
-		return brg_clk;
+	if (prop && size == sizeof(*prop))
+		brg_clk = *prop;
 
-	brg_clk = *prop;
 	of_node_put(qe);
 
 	return brg_clk;