Merge branch 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Make sure __cpu_preinit_ppc970 gets called on 970GX processors
  [POWERPC] Fix CHRP platforms with only 8259
  [POWERPC] IPIC: Fix spinlock recursion in set_irq_handler
  [POWERPC] Fix the UCC rx/tx clock of QE
  [POWERPC] cell: update defconfig
  [POWERPC] spufs: fix another off-by-one bug in spufs_mbox_read
  [POWERPC] spufs: fix signal2 file to report signal2
  [POWERPC] Fix device_is_compatible() const warning
  [POWERPC] Cell timebase bug workaround
  [POWERPC] Support feature fixups in modules
  [POWERPC] Support feature fixups in vdso's
  [POWERPC] Support nested cpu feature sections
  [POWERPC] Consolidate feature fixup code
  [POWERPC] Fix hang in start_ldr if _end or _edata is unaligned
  [POWERPC] Fix spelling errors in ucc_fast.c and ucc_slow.c
  [POWERPC] Don't require execute perms on wrapper when building zImage.initrd
  [POWERPC] Add 970GX cputable entry
  [POWERPC] Fix build breakage with CONFIG_PPC32
  [POWERPC] Fix compiler warning message on get_property call
  [POWERPC] Simplify stolen time calculation

31 files changed, 312 insertions, 390 deletions

diff --git a/arch/powerpc/boot/Makefile b/arch/powerpc/boot/Makefile
index 37ddfca..4b2be61 100644
--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -115,7 +115,7 @@ endif
 quiet_cmd_wrap	= WRAP    $@
       cmd_wrap	=$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) vmlinux
 quiet_cmd_wrap_initrd = WRAP    $@
-      cmd_wrap_initrd =$(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
+      cmd_wrap_initrd =$(CONFIG_SHELL) $(wrapper) -c -o $@ -p $2 $(CROSSWRAP) \
 				-i $(obj)/ramdisk.image.gz vmlinux
 
 $(obj)/zImage.chrp: vmlinux $(wrapperbits)
diff --git a/arch/powerpc/configs/cell_defconfig b/arch/powerpc/configs/cell_defconfig
index 892d5dd..0aba06d 100644
--- a/arch/powerpc/configs/cell_defconfig
+++ b/arch/powerpc/configs/cell_defconfig
@@ -254,6 +254,7 @@ CONFIG_SYN_COOKIES=y
 CONFIG_INET_TUNNEL=y
 CONFIG_INET_XFRM_MODE_TRANSPORT=y
 CONFIG_INET_XFRM_MODE_TUNNEL=y
+# CONFIG_INET_XFRM_MODE_BEET is not set
 CONFIG_INET_DIAG=y
 CONFIG_INET_TCP_DIAG=y
 # CONFIG_TCP_CONG_ADVANCED is not set
@@ -275,7 +276,9 @@ CONFIG_INET6_XFRM_TUNNEL=m
 CONFIG_INET6_TUNNEL=m
 CONFIG_INET6_XFRM_MODE_TRANSPORT=y
 CONFIG_INET6_XFRM_MODE_TUNNEL=y
+# CONFIG_INET6_XFRM_MODE_BEET is not set
 # CONFIG_INET6_XFRM_MODE_ROUTEOPTIMIZATION is not set
+# CONFIG_IPV6_SIT is not set
 CONFIG_IPV6_TUNNEL=m
 # CONFIG_IPV6_SUBTREES is not set
 # CONFIG_IPV6_MULTIPLE_TABLES is not set
@@ -406,6 +409,12 @@ CONFIG_BLK_DEV_INITRD=y
 # CONFIG_ATA_OVER_ETH is not set
 
 #
+# Misc devices
+#
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+
+#
 # ATA/ATAPI/MFM/RLL support
 #
 CONFIG_IDE=y
@@ -738,7 +747,6 @@ CONFIG_GEN_RTC=y
 # TPM devices
 #
 # CONFIG_TCG_TPM is not set
-# CONFIG_TELCLOCK is not set
 
 #
 # I2C support
@@ -802,6 +810,7 @@ CONFIG_I2C_ALGOBIT=y
 #
 # Dallas's 1-wire bus
 #
+# CONFIG_W1 is not set
 
 #
 # Hardware Monitoring support
@@ -810,14 +819,9 @@ CONFIG_I2C_ALGOBIT=y
 # CONFIG_HWMON_VID is not set
 
 #
-# Misc devices
-#
-
-#
 # Multimedia devices
 #
 # CONFIG_VIDEO_DEV is not set
-CONFIG_VIDEO_V4L2=y
 
 #
 # Digital Video Broadcasting Devices
@@ -923,6 +927,7 @@ CONFIG_EXT3_FS=y
 CONFIG_EXT3_FS_XATTR=y
 # CONFIG_EXT3_FS_POSIX_ACL is not set
 # CONFIG_EXT3_FS_SECURITY is not set
+# CONFIG_EXT4DEV_FS is not set
 CONFIG_JBD=y
 # CONFIG_JBD_DEBUG is not set
 CONFIG_FS_MBCACHE=y
@@ -930,6 +935,7 @@ CONFIG_FS_MBCACHE=y
 # CONFIG_JFS_FS is not set
 CONFIG_FS_POSIX_ACL=y
 # CONFIG_XFS_FS is not set
+# CONFIG_GFS2_FS is not set
 # CONFIG_OCFS2_FS is not set
 # CONFIG_MINIX_FS is not set
 # CONFIG_ROMFS_FS is not set
@@ -1129,6 +1135,7 @@ CONFIG_DEBUG_FS=y
 # CONFIG_DEBUG_VM is not set
 # CONFIG_DEBUG_LIST is not set
 # CONFIG_FORCED_INLINING is not set
+# CONFIG_HEADERS_CHECK is not set
 # CONFIG_RCU_TORTURE_TEST is not set
 # CONFIG_DEBUG_STACKOVERFLOW is not set
 # CONFIG_DEBUG_STACK_USAGE is not set
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 95382f9..bfd499e 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -18,6 +18,7 @@
 
 #include <asm/oprofile_impl.h>
 #include <asm/cputable.h>
+#include <asm/prom.h>		/* for PTRRELOC on ARCH=ppc */
 
 struct cpu_spec* cur_cpu_spec = NULL;
 EXPORT_SYMBOL(cur_cpu_spec);
@@ -73,7 +74,7 @@ extern void __restore_cpu_ppc970(void);
 #define PPC_FEATURE_SPE_COMP	0
 #endif
 
-struct cpu_spec	cpu_specs[] = {
+static struct cpu_spec cpu_specs[] = {
 #ifdef CONFIG_PPC64
 	{	/* Power3 */
 		.pvr_mask		= 0xffff0000,
@@ -227,6 +228,21 @@ struct cpu_spec	cpu_specs[] = {
 		.oprofile_type		= PPC_OPROFILE_POWER4,
 		.platform		= "ppc970",
 	},
+	{	/* PPC970GX */
+		.pvr_mask		= 0xffff0000,
+		.pvr_value		= 0x00450000,
+		.cpu_name		= "PPC970GX",
+		.cpu_features		= CPU_FTRS_PPC970,
+		.cpu_user_features	= COMMON_USER_POWER4 |
+			PPC_FEATURE_HAS_ALTIVEC_COMP,
+		.icache_bsize		= 128,
+		.dcache_bsize		= 128,
+		.num_pmcs		= 8,
+		.cpu_setup		= __setup_cpu_ppc970,
+		.oprofile_cpu_type	= "ppc64/970",
+		.oprofile_type		= PPC_OPROFILE_POWER4,
+		.platform		= "ppc970",
+	},
 	{	/* Power5 GR */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x003a0000,
@@ -1152,3 +1168,71 @@ struct cpu_spec	cpu_specs[] = {
 #endif /* !CLASSIC_PPC */
 #endif /* CONFIG_PPC32 */
 };
+
+struct cpu_spec *identify_cpu(unsigned long offset)
+{
+	struct cpu_spec *s = cpu_specs;
+	struct cpu_spec **cur = &cur_cpu_spec;
+	unsigned int pvr = mfspr(SPRN_PVR);
+	int i;
+
+	s = PTRRELOC(s);
+	cur = PTRRELOC(cur);
+
+	if (*cur != NULL)
+		return PTRRELOC(*cur);
+
+	for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++)
+		if ((pvr & s->pvr_mask) == s->pvr_value) {
+			*cur = cpu_specs + i;
+#ifdef CONFIG_PPC64
+			/* ppc64 expects identify_cpu to also call setup_cpu
+			 * for that processor. I will consolidate that at a
+			 * later time, for now, just use our friend #ifdef.
+			 * we also don't need to PTRRELOC the function pointer
+			 * on ppc64 as we are running at 0 in real mode.
+			 */
+			if (s->cpu_setup) {
+				s->cpu_setup(offset, s);
+			}
+#endif /* CONFIG_PPC64 */
+			return s;
+		}
+	BUG();
+	return NULL;
+}
+
+void do_feature_fixups(unsigned long value, void *fixup_start, void *fixup_end)
+{
+	struct fixup_entry {
+		unsigned long	mask;
+		unsigned long	value;
+		long		start_off;
+		long		end_off;
+	} *fcur, *fend;
+
+	fcur = fixup_start;
+	fend = fixup_end;
+
+	for (; fcur < fend; fcur++) {
+		unsigned int *pstart, *pend, *p;
+
+		if ((value & fcur->mask) == fcur->value)
+			continue;
+
+		/* These PTRRELOCs will disappear once the new scheme for
+		 * modules and vdso is implemented
+		 */
+		pstart = ((unsigned int *)fcur) + (fcur->start_off / 4);
+		pend = ((unsigned int *)fcur) + (fcur->end_off / 4);
+
+		for (p = pstart; p < pend; p++) {
+			*p = 0x60000000u;
+			asm volatile ("dcbst 0, %0" : : "r" (p));
+		}
+		asm volatile ("sync" : : : "memory");
+		for (p = pstart; p < pend; p++)
+			asm volatile ("icbi 0,%0" : : "r" (p));
+		asm volatile ("sync; isync" : : : "memory");
+	}
+}
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index 645c7f1..291e362 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -1580,11 +1580,6 @@ _STATIC(__start_initialization_iSeries)
 	li	r0,0
 	stdu	r0,-STACK_FRAME_OVERHEAD(r1)
 
-	LOAD_REG_IMMEDIATE(r3,cpu_specs)
-	LOAD_REG_IMMEDIATE(r4,cur_cpu_spec)
-	li	r5,0
-	bl	.identify_cpu
-
 	LOAD_REG_IMMEDIATE(r2,__toc_start)
 	addi	r2,r2,0x4000
 	addi	r2,r2,0x4000
@@ -1646,6 +1641,8 @@ _GLOBAL(__start_initialization_multiplatform)
 	cmpwi	r0,0x3c		/* 970FX */
 	beq	1f
 	cmpwi	r0,0x44		/* 970MP */
+	beq	1f
+	cmpwi	r0,0x45		/* 970GX */
 	bne	2f
 1:	bl	.__cpu_preinit_ppc970
 2:
@@ -1964,13 +1961,6 @@ _STATIC(start_here_multiplatform)
 	addi	r2,r2,0x4000
 	add	r2,r2,r26
 
-	LOAD_REG_IMMEDIATE(r3, cpu_specs)
-	add	r3,r3,r26
-	LOAD_REG_IMMEDIATE(r4,cur_cpu_spec)
-	add	r4,r4,r26
-	mr	r5,r26
-	bl	.identify_cpu
-
 	/* Do very early kernel initializations, including initial hash table,
 	 * stab and slb setup before we turn on relocation.	*/
 
@@ -2000,13 +1990,6 @@ _STATIC(start_here_common)
 	li	r0,0
 	stdu	r0,-STACK_FRAME_OVERHEAD(r1)
 
-	/* Apply the CPUs-specific fixups (nop out sections not relevant
-	 * to this CPU
-	 */
-	li	r3,0
-	bl	.do_cpu_ftr_fixups
-	bl	.do_fw_ftr_fixups
-
 	/* ptr to current */
 	LOAD_REG_IMMEDIATE(r4, init_task)
 	std	r4,PACACURRENT(r13)
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 88fd73f..412bea3 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -102,80 +102,6 @@ _GLOBAL(reloc_got2)
 	blr
 
 /*
- * identify_cpu,
- * called with r3 = data offset and r4 = CPU number
- * doesn't change r3
- */
-_GLOBAL(identify_cpu)
-	addis	r8,r3,cpu_specs@ha
-	addi	r8,r8,cpu_specs@l
-	mfpvr	r7
-1:
-	lwz	r5,CPU_SPEC_PVR_MASK(r8)
-	and	r5,r5,r7
-	lwz	r6,CPU_SPEC_PVR_VALUE(r8)
-	cmplw	0,r6,r5
-	beq	1f
-	addi	r8,r8,CPU_SPEC_ENTRY_SIZE
-	b	1b
-1:
-	addis	r6,r3,cur_cpu_spec@ha
-	addi	r6,r6,cur_cpu_spec@l
-	sub	r8,r8,r3
-	stw	r8,0(r6)
-	blr
-
-/*
- * do_cpu_ftr_fixups - goes through the list of CPU feature fixups
- * and writes nop's over sections of code that don't apply for this cpu.
- * r3 = data offset (not changed)
- */
-_GLOBAL(do_cpu_ftr_fixups)
-	/* Get CPU 0 features */
-	addis	r6,r3,cur_cpu_spec@ha
-	addi	r6,r6,cur_cpu_spec@l
-	lwz	r4,0(r6)
-	add	r4,r4,r3
-	lwz	r4,CPU_SPEC_FEATURES(r4)
-
-	/* Get the fixup table */
-	addis	r6,r3,__start___ftr_fixup@ha
-	addi	r6,r6,__start___ftr_fixup@l
-	addis	r7,r3,__stop___ftr_fixup@ha
-	addi	r7,r7,__stop___ftr_fixup@l
-
-	/* Do the fixup */
-1:	cmplw	0,r6,r7
-	bgelr
-	addi	r6,r6,16
-	lwz	r8,-16(r6)	/* mask */
-	and	r8,r8,r4
-	lwz	r9,-12(r6)	/* value */
-	cmplw	0,r8,r9
-	beq	1b
-	lwz	r8,-8(r6)	/* section begin */
-	lwz	r9,-4(r6)	/* section end */
-	subf.	r9,r8,r9
-	beq	1b
-	/* write nops over the section of code */
-	/* todo: if large section, add a branch at the start of it */
-	srwi	r9,r9,2
-	mtctr	r9
-	add	r8,r8,r3
-	lis	r0,0x60000000@h	/* nop */
-3:	stw	r0,0(r8)
-	andi.	r10,r4,CPU_FTR_SPLIT_ID_CACHE@l
-	beq	2f
-	dcbst	0,r8		/* suboptimal, but simpler */
-	sync
-	icbi	0,r8
-2:	addi	r8,r8,4
-	bdnz	3b
-	sync			/* additional sync needed on g4 */
-	isync
-	b	1b
-
-/*
  * call_setup_cpu - call the setup_cpu function for this cpu
  * r3 = data offset, r24 = cpu number
  *
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index c70e207..21fd2c6 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -246,130 +246,6 @@ _GLOBAL(__flush_dcache_icache)
 	isync
 	blr
 
-/*
- * identify_cpu and calls setup_cpu
- * In:	r3 = base of the cpu_specs array
- *	r4 = address of cur_cpu_spec
- *	r5 = relocation offset
- */
-_GLOBAL(identify_cpu)
-	mfpvr	r7
-1:
-	lwz	r8,CPU_SPEC_PVR_MASK(r3)
-	and	r8,r8,r7
-	lwz	r9,CPU_SPEC_PVR_VALUE(r3)
-	cmplw	0,r9,r8
-	beq	1f
-	addi	r3,r3,CPU_SPEC_ENTRY_SIZE
-	b	1b
-1:
-	sub	r0,r3,r5
-	std	r0,0(r4)
-	ld	r4,CPU_SPEC_SETUP(r3)
-	cmpdi	0,r4,0
-	add	r4,r4,r5
-	beqlr
-	ld	r4,0(r4)
-	add	r4,r4,r5
-	mtctr	r4
-	/* Calling convention for cpu setup is r3=offset, r4=cur_cpu_spec */
-	mr	r4,r3
-	mr	r3,r5
-	bctr
-
-/*
- * do_cpu_ftr_fixups - goes through the list of CPU feature fixups
- * and writes nop's over sections of code that don't apply for this cpu.
- * r3 = data offset (not changed)
- */
-_GLOBAL(do_cpu_ftr_fixups)
-	/* Get CPU 0 features */
-	LOAD_REG_IMMEDIATE(r6,cur_cpu_spec)
-	sub	r6,r6,r3
-	ld	r4,0(r6)
-	sub	r4,r4,r3
-	ld	r4,CPU_SPEC_FEATURES(r4)
-	/* Get the fixup table */
-	LOAD_REG_IMMEDIATE(r6,__start___ftr_fixup)
-	sub	r6,r6,r3
-	LOAD_REG_IMMEDIATE(r7,__stop___ftr_fixup)
-	sub	r7,r7,r3
-	/* Do the fixup */
-1:	cmpld	r6,r7
-	bgelr
-	addi	r6,r6,32
-	ld	r8,-32(r6)	/* mask */
-	and	r8,r8,r4
-	ld	r9,-24(r6)	/* value */
-	cmpld	r8,r9
-	beq	1b
-	ld	r8,-16(r6)	/* section begin */
-	ld	r9,-8(r6)	/* section end */
-	subf.	r9,r8,r9
-	beq	1b
-	/* write nops over the section of code */
-	/* todo: if large section, add a branch at the start of it */
-	srwi	r9,r9,2
-	mtctr	r9
-	sub	r8,r8,r3
-	lis	r0,0x60000000@h	/* nop */
-3:	stw	r0,0(r8)
-	andi.	r10,r4,CPU_FTR_SPLIT_ID_CACHE@l
-	beq	2f
-	dcbst	0,r8		/* suboptimal, but simpler */
-	sync
-	icbi	0,r8
-2:	addi	r8,r8,4
-	bdnz	3b
-	sync			/* additional sync needed on g4 */
-	isync
-	b	1b
-
-/*
- * do_fw_ftr_fixups - goes through the list of firmware feature fixups
- * and writes nop's over sections of code that don't apply for this firmware.
- * r3 = data offset (not changed)
- */
-_GLOBAL(do_fw_ftr_fixups)
-	/* Get firmware features */
-	LOAD_REG_IMMEDIATE(r6,powerpc_firmware_features)
-	sub	r6,r6,r3
-	ld	r4,0(r6)
-	/* Get the fixup table */
-	LOAD_REG_IMMEDIATE(r6,__start___fw_ftr_fixup)
-	sub	r6,r6,r3
-	LOAD_REG_IMMEDIATE(r7,__stop___fw_ftr_fixup)
-	sub	r7,r7,r3
-	/* Do the fixup */
-1:	cmpld	r6,r7
-	bgelr
-	addi	r6,r6,32
-	ld	r8,-32(r6)	/* mask */
-	and	r8,r8,r4
-	ld	r9,-24(r6)	/* value */
-	cmpld	r8,r9
-	beq	1b
-	ld	r8,-16(r6)	/* section begin */
-	ld	r9,-8(r6)	/* section end */
-	subf.	r9,r8,r9
-	beq	1b
-	/* write nops over the section of code */
-	/* todo: if large section, add a branch at the start of it */
-	srwi	r9,r9,2
-	mtctr	r9
-	sub	r8,r8,r3
-	lis	r0,0x60000000@h	/* nop */
-3:	stw	r0,0(r8)
-BEGIN_FTR_SECTION
-	dcbst	0,r8		/* suboptimal, but simpler */
-	sync
-	icbi	0,r8
-END_FTR_SECTION_IFSET(CPU_FTR_SPLIT_ID_CACHE)
-	addi	r8,r8,4
-	bdnz	3b
-	sync			/* additional sync needed on g4 */
-	isync
-	b	1b
 
 #if defined(CONFIG_PPC_PMAC) || defined(CONFIG_PPC_MAPLE)
 /*
diff --git a/arch/powerpc/kernel/module_32.c b/arch/powerpc/kernel/module_32.c
index 92f4e5f..e2c3c6a 100644
--- a/arch/powerpc/kernel/module_32.c
+++ b/arch/powerpc/kernel/module_32.c
@@ -24,6 +24,8 @@
 #include <linux/kernel.h>
 #include <linux/cache.h>
 
+#include "setup.h"
+
 #if 0
 #define DEBUGP printk
 #else
@@ -269,33 +271,50 @@ int apply_relocate_add(Elf32_Shdr *sechdrs,
 	return 0;
 }
 
+static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
+				    const Elf_Shdr *sechdrs,
+				    const char *name)
+{
+	char *secstrings;
+	unsigned int i;
+
+	secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	for (i = 1; i < hdr->e_shnum; i++)
+		if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
+			return &sechdrs[i];
+	return NULL;
+}
+
 int module_finalize(const Elf_Ehdr *hdr,
 		    const Elf_Shdr *sechdrs,
 		    struct module *me)
 {
-	char *secstrings;
-	unsigned int i;
+	const Elf_Shdr *sect;
 
 	me->arch.bug_table = NULL;
 	me->arch.num_bugs = 0;
 
 	/* Find the __bug_table section, if present */
-	secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-	for (i = 1; i < hdr->e_shnum; i++) {
-		if (strcmp(secstrings+sechdrs[i].sh_name, "__bug_table"))
-			continue;
-		me->arch.bug_table = (void *) sechdrs[i].sh_addr;
-		me->arch.num_bugs = sechdrs[i].sh_size / sizeof(struct bug_entry);
-		break;
+	sect = find_section(hdr, sechdrs, "__bug_table");
+	if (sect != NULL) {
+		me->arch.bug_table = (void *) sect->sh_addr;
+		me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry);
 	}
 
-	/*
+ 	/*
 	 * Strictly speaking this should have a spinlock to protect against
 	 * traversals, but since we only traverse on BUG()s, a spinlock
 	 * could potentially lead to deadlock and thus be counter-productive.
 	 */
 	list_add(&me->arch.bug_list, &module_bug_list);
 
+	/* Apply feature fixups */
+	sect = find_section(hdr, sechdrs, "__ftr_fixup");
+	if (sect != NULL)
+		do_feature_fixups(cur_cpu_spec->cpu_features,
+				  (void *)sect->sh_addr,
+				  (void *)sect->sh_addr + sect->sh_size);
+
 	return 0;
 }
 
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index ba34001..8dd1f0a 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -22,6 +22,9 @@
 #include <linux/vmalloc.h>
 #include <asm/module.h>
 #include <asm/uaccess.h>
+#include <asm/firmware.h>
+
+#include "setup.h"
 
 /* FIXME: We don't do .init separately.  To do this, we'd need to have
    a separate r2 value in the init and core section, and stub between
@@ -400,6 +403,11 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 				| (value & 0x03fffffc);
 			break;
 
+		case R_PPC64_REL64:
+			/* 64 bits relative (used by features fixups) */
+			*location = value - (unsigned long)location;
+			break;
+
 		default:
 			printk("%s: Unknown ADD relocation: %lu\n",
 			       me->name,
@@ -413,23 +421,33 @@ int apply_relocate_add(Elf64_Shdr *sechdrs,
 
 LIST_HEAD(module_bug_list);
 
-int module_finalize(const Elf_Ehdr *hdr,
-		const Elf_Shdr *sechdrs, struct module *me)
+static const Elf_Shdr *find_section(const Elf_Ehdr *hdr,
+				    const Elf_Shdr *sechdrs,
+				    const char *name)
 {
 	char *secstrings;
 	unsigned int i;
 
+	secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
+	for (i = 1; i < hdr->e_shnum; i++)
+		if (strcmp(secstrings+sechdrs[i].sh_name, name) == 0)
+			return &sechdrs[i];
+	return NULL;
+}
+
+int module_finalize(const Elf_Ehdr *hdr,
+		const Elf_Shdr *sechdrs, struct module *me)
+{
+	const Elf_Shdr *sect;
+
 	me->arch.bug_table = NULL;
 	me->arch.num_bugs = 0;
 
 	/* Find the __bug_table section, if present */
-	secstrings = (char *)hdr + sechdrs[hdr->e_shstrndx].sh_offset;
-	for (i = 1; i < hdr->e_shnum; i++) {
-		if (strcmp(secstrings+sechdrs[i].sh_name, "__bug_table"))
-			continue;
-		me->arch.bug_table = (void *) sechdrs[i].sh_addr;
-		me->arch.num_bugs = sechdrs[i].sh_size / sizeof(struct bug_entry);
-		break;
+	sect = find_section(hdr, sechdrs, "__bug_table");
+	if (sect != NULL) {
+		me->arch.bug_table = (void *) sect->sh_addr;
+		me->arch.num_bugs = sect->sh_size / sizeof(struct bug_entry);
 	}
 
 	/*
@@ -439,6 +457,19 @@ int module_finalize(const Elf_Ehdr *hdr,
 	 */
 	list_add(&me->arch.bug_list, &module_bug_list);
 
+	/* Apply feature fixups */
+	sect = find_section(hdr, sechdrs, "__ftr_fixup");
+	if (sect != NULL)
+		do_feature_fixups(cur_cpu_spec->cpu_features,
+				  (void *)sect->sh_addr,
+				  (void *)sect->sh_addr + sect->sh_size);
+
+	sect = find_section(hdr, sechdrs, "__fw_ftr_fixup");
+	if (sect != NULL)
+		do_feature_fixups(powerpc_firmware_features,
+				  (void *)sect->sh_addr,
+				  (void *)sect->sh_addr + sect->sh_size);
+
 	return 0;
 }
 
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 865b964..bdb412d 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -1014,7 +1014,7 @@ EXPORT_SYMBOL(find_all_nodes);
 /** Checks if the given "compat" string matches one of the strings in
  * the device's "compatible" property
  */
-int device_is_compatible(struct device_node *device, const char *compat)
+int device_is_compatible(const struct device_node *device, const char *compat)
 {
 	const char* cp;
 	int cplen, l;
@@ -1491,7 +1491,8 @@ static int __init prom_reconfig_setup(void)
 __initcall(prom_reconfig_setup);
 #endif
 
-struct property *of_find_property(struct device_node *np, const char *name,
+struct property *of_find_property(const struct device_node *np,
+				  const char *name,
 				  int *lenp)
 {
 	struct property *pp;
@@ -1512,7 +1513,8 @@ struct property *of_find_property(struct device_node *np, const char *name,
  * Find a property with a given name for a given node
  * and return the value.
  */
-const void *get_property(struct device_node *np, const char *name, int *lenp)
+const void *get_property(const struct device_node *np, const char *name,
+			 int *lenp)
 {
 	struct property *pp = of_find_property(np,name,lenp);
 	return pp ? pp->value : NULL;
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 191d0ab..a4c2964 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -91,6 +91,7 @@ int ucache_bsize;
 unsigned long __init early_init(unsigned long dt_ptr)
 {
 	unsigned long offset = reloc_offset();
+	struct cpu_spec *spec;
 
 	/* First zero the BSS -- use memset_io, some platforms don't have
 	 * caches on yet */
@@ -100,8 +101,11 @@ unsigned long __init early_init(unsigned long dt_ptr)
 	 * Identify the CPU type and fix up code sections
 	 * that depend on which cpu we have.
 	 */
-	identify_cpu(offset, 0);
-	do_cpu_ftr_fixups(offset);
+	spec = identify_cpu(offset);
+
+	do_feature_fixups(spec->cpu_features,
+			  PTRRELOC(&__start___ftr_fixup),
+			  PTRRELOC(&__stop___ftr_fixup));
 
 	return KERNELBASE + offset;
 }
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 4b2e32e..1627896 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -170,6 +170,9 @@ void __init setup_paca(int cpu)
 
 void __init early_setup(unsigned long dt_ptr)
 {
+	/* Identify CPU type */
+	identify_cpu(0);
+
 	/* Assume we're on cpu 0 for now. Don't write to the paca yet! */
 	setup_paca(0);
 
@@ -348,6 +351,14 @@ void __init setup_system(void)
 {
 	DBG(" -> setup_system()\n");
 
+	/* Apply the CPUs-specific and firmware specific fixups to kernel
+	 * text (nop out sections not relevant to this CPU or this firmware)
+	 */
+	do_feature_fixups(cur_cpu_spec->cpu_features,
+			  &__start___ftr_fixup, &__stop___ftr_fixup);
+	do_feature_fixups(powerpc_firmware_features,
+			  &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup);
+
 	/*
 	 * Unflatten the device-tree passed by prom_init or kexec
 	 */
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 5b59bc1..a1b5e4b 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -220,11 +220,8 @@ static void account_process_time(struct pt_regs *regs)
  */
 struct cpu_purr_data {
 	int	initialized;			/* thread is running */
-	u64	tb0;			/* timebase at origin time */
-	u64	purr0;			/* PURR at origin time */
 	u64	tb;			/* last TB value read */
 	u64	purr;			/* last PURR value read */
-	u64	stolen;			/* stolen time so far */
 	spinlock_t lock;
 };
 
@@ -234,10 +231,8 @@ static void snapshot_tb_and_purr(void *data)
 {
 	struct cpu_purr_data *p = &__get_cpu_var(cpu_purr_data);
 
-	p->tb0 = mftb();
-	p->purr0 = mfspr(SPRN_PURR);
-	p->tb = p->tb0;
-	p->purr = 0;
+	p->tb = mftb();
+	p->purr = mfspr(SPRN_PURR);
 	wmb();
 	p->initialized = 1;
 }
@@ -258,37 +253,24 @@ void snapshot_timebases(void)
 
 void calculate_steal_time(void)
 {
-	u64 tb, purr, t0;
+	u64 tb, purr;
 	s64 stolen;
-	struct cpu_purr_data *p0, *pme, *phim;
-	int cpu;
+	struct cpu_purr_data *pme;
 
 	if (!cpu_has_feature(CPU_FTR_PURR))
 		return;
-	cpu = smp_processor_id();
-	pme = &per_cpu(cpu_purr_data, cpu);
+	pme = &per_cpu(cpu_purr_data, smp_processor_id());
 	if (!pme->initialized)
 		return;		/* this can happen in early boot */
-	p0 = &per_cpu(cpu_purr_data, cpu & ~1);
-	phim = &per_cpu(cpu_purr_data, cpu ^ 1);
-	spin_lock(&p0->lock);
+	spin_lock(&pme->lock);
 	tb = mftb();
-	purr = mfspr(SPRN_PURR) - pme->purr0;
-	if (!phim->initialized || !cpu_online(cpu ^ 1)) {
-		stolen = (tb - pme->tb) - (purr - pme->purr);
-	} else {
-		t0 = pme->tb0;
-		if (phim->tb0 < t0)
-			t0 = phim->tb0;
-		stolen = phim->tb - t0 - phim->purr - purr - p0->stolen;
-	}
-	if (stolen > 0) {
+	purr = mfspr(SPRN_PURR);
+	stolen = (tb - pme->tb) - (purr - pme->purr);
+	if (stolen > 0)
 		account_steal_time(current, stolen);
-		p0->stolen += stolen;
-	}
 	pme->tb = tb;
 	pme->purr = purr;
-	spin_unlock(&p0->lock);
+	spin_unlock(&pme->lock);
 }
 
 /*
@@ -297,30 +279,17 @@ void calculate_steal_time(void)
  */
 static void snapshot_purr(void)
 {
-	int cpu;
-	u64 purr;
-	struct cpu_purr_data *p0, *pme, *phim;
+	struct cpu_purr_data *pme;
 	unsigned long flags;
 
 	if (!cpu_has_feature(CPU_FTR_PURR))
 		return;
-	cpu = smp_processor_id();
-	pme = &per_cpu(cpu_purr_data, cpu);
-	p0 = &per_cpu(cpu_purr_data, cpu & ~1);
-	phim = &per_cpu(cpu_purr_data, cpu ^ 1);
-	spin_lock_irqsave(&p0->lock, flags);
-	pme->tb = pme->tb0 = mftb();
-	purr = mfspr(SPRN_PURR);
-	if (!phim->initialized) {
-		pme->purr = 0;
-		pme->purr0 = purr;
-	} else {
-		/* set p->purr and p->purr0 for no change in p0->stolen */
-		pme->purr = phim->tb - phim->tb0 - phim->purr - p0->stolen;
-		pme->purr0 = purr - pme->purr;
-	}
+	pme = &per_cpu(cpu_purr_data, smp_processor_id());
+	spin_lock_irqsave(&pme->lock, flags);
+	pme->tb = mftb();
+	pme->purr = mfspr(SPRN_PURR);
 	pme->initialized = 1;
-	spin_unlock_irqrestore(&p0->lock, flags);
+	spin_unlock_irqrestore(&pme->lock, flags);
 }
 
 #endif /* CONFIG_PPC_SPLPAR */
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 1a7e19c..c913ad5 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -36,6 +36,8 @@
 #include <asm/vdso.h>
 #include <asm/vdso_datapage.h>
 
+#include "setup.h"
+
 #undef DEBUG
 
 #ifdef DEBUG
@@ -586,6 +588,43 @@ static __init int vdso_fixup_datapage(struct lib32_elfinfo *v32,
 	return 0;
 }
 
+
+static __init int vdso_fixup_features(struct lib32_elfinfo *v32,
+				      struct lib64_elfinfo *v64)
+{
+	void *start32;
+	unsigned long size32;
+
+#ifdef CONFIG_PPC64
+	void *start64;
+	unsigned long size64;
+
+	start64 = find_section64(v64->hdr, "__ftr_fixup", &size64);
+	if (start64)
+		do_feature_fixups(cur_cpu_spec->cpu_features,
+				  start64, start64 + size64);
+
+	start64 = find_section64(v64->hdr, "__fw_ftr_fixup", &size64);
+	if (start64)
+		do_feature_fixups(powerpc_firmware_features,
+				  start64, start64 + size64);
+#endif /* CONFIG_PPC64 */
+
+	start32 = find_section32(v32->hdr, "__ftr_fixup", &size32);
+	if (start32)
+		do_feature_fixups(cur_cpu_spec->cpu_features,
+				  start32, start32 + size32);
+
+#ifdef CONFIG_PPC64
+	start32 = find_section32(v32->hdr, "__fw_ftr_fixup", &size32);
+	if (start32)
+		do_feature_fixups(powerpc_firmware_features,
+				  start32, start32 + size32);
+#endif /* CONFIG_PPC64 */
+
+	return 0;
+}
+
 static __init int vdso_fixup_alt_funcs(struct lib32_elfinfo *v32,
 				       struct lib64_elfinfo *v64)
 {
@@ -634,6 +673,9 @@ static __init int vdso_setup(void)
 	if (vdso_fixup_datapage(&v32, &v64))
 		return -1;
 
+	if (vdso_fixup_features(&v32, &v64))
+		return -1;
+
 	if (vdso_fixup_alt_funcs(&v32, &v64))
 		return -1;
 
@@ -714,6 +756,7 @@ void __init vdso_init(void)
 	 * Setup the syscall map in the vDOS
 	 */
 	vdso_setup_syscall_map();
+
 	/*
 	 * Initialize the vDSO images in memory, that is do necessary
 	 * fixups of vDSO symbols, locate trampolines, etc...
diff --git a/arch/powerpc/kernel/vdso32/vdso32.lds.S b/arch/powerpc/kernel/vdso32/vdso32.lds.S
index 6187af2..26e138c 100644
--- a/arch/powerpc/kernel/vdso32/vdso32.lds.S
+++ b/arch/powerpc/kernel/vdso32/vdso32.lds.S
@@ -32,6 +32,18 @@ SECTIONS
   PROVIDE (_etext = .);
   PROVIDE (etext = .);
 
+  . = ALIGN(8);
+  __ftr_fixup : {
+    *(__ftr_fixup)
+  }
+
+#ifdef CONFIG_PPC64
+  . = ALIGN(8);
+  __fw_ftr_fixup : {
+    *(__fw_ftr_fixup)
+  }
+#endif
+
   /* Other stuff is appended to the text segment: */
   .rodata		: { *(.rodata .rodata.* .gnu.linkonce.r.*) }
   .rodata1		: { *(.rodata1) }
diff --git a/arch/powerpc/kernel/vdso64/gettimeofday.S b/arch/powerpc/kernel/vdso64/gettimeofday.S
index 56e76ff..40ffd9b 100644
--- a/arch/powerpc/kernel/vdso64/gettimeofday.S
+++ b/arch/powerpc/kernel/vdso64/gettimeofday.S
@@ -229,8 +229,10 @@ V_FUNCTION_BEGIN(__do_get_xsec)
 	xor	r0,r8,r8		/* create dependency */
 	add	r3,r3,r0
 
-	/* Get TB & offset it */
-	mftb	r7
+	/* Get TB & offset it. We use the MFTB macro which will generate
+	 * workaround code for Cell.
+	 */
+	MFTB(r7)
 	ld	r9,CFG_TB_ORIG_STAMP(r3)
 	subf	r7,r9,r7
 
diff --git a/arch/powerpc/kernel/vdso64/vdso64.lds.S b/arch/powerpc/kernel/vdso64/vdso64.lds.S
index 4a2b6dc..2d70f35 100644
--- a/arch/powerpc/kernel/vdso64/vdso64.lds.S
+++ b/arch/powerpc/kernel/vdso64/vdso64.lds.S
@@ -31,6 +31,16 @@ SECTIONS
   PROVIDE (_etext = .);
   PROVIDE (etext = .);
 
+  . = ALIGN(8);
+  __ftr_fixup : {
+    *(__ftr_fixup)
+  }
+
+  . = ALIGN(8);
+  __fw_ftr_fixup : {
+    *(__fw_ftr_fixup)
+  }
+
   /* Other stuff is appended to the text segment: */
   .rodata         : { *(.rodata .rodata.* .gnu.linkonce.r.*) }
   .rodata1        : { *(.rodata1) }
diff --git a/arch/powerpc/oprofile/op_model_power4.c b/arch/powerpc/oprofile/op_model_power4.c
index 506f6b7..6a927ef 100644
--- a/arch/powerpc/oprofile/op_model_power4.c
+++ b/arch/powerpc/oprofile/op_model_power4.c
@@ -76,7 +76,7 @@ static inline int mmcra_must_set_sample(void)
 {
 	if (__is_processor(PV_POWER4) || __is_processor(PV_POWER4p) ||
 	    __is_processor(PV_970) || __is_processor(PV_970FX) ||
-	    __is_processor(PV_970MP))
+	    __is_processor(PV_970MP) || __is_processor(PV_970GX))
 		return 1;
 
 	return 0;
diff --git a/arch/powerpc/platforms/cell/spufs/file.c b/arch/powerpc/platforms/cell/spufs/file.c
index 0de8e11..533e272 100644
--- a/arch/powerpc/platforms/cell/spufs/file.c
+++ b/arch/powerpc/platforms/cell/spufs/file.c
@@ -385,7 +385,7 @@ static ssize_t spufs_mbox_read(struct file *file, char __user *buf,
 	udata = (void __user *)buf;
 
 	spu_acquire(ctx);
-	for (count = 0; count <= len; count += 4, udata++) {
+	for (count = 0; (count + 4) <= len; count += 4, udata++) {
 		int ret;
 		ret = ctx->ops->mbox_read(ctx, &mbox_data);
 		if (ret == 0)
diff --git a/arch/powerpc/platforms/cell/spufs/hw_ops.c b/arch/powerpc/platforms/cell/spufs/hw_ops.c
index efc452e..d805ffe 100644
--- a/arch/powerpc/platforms/cell/spufs/hw_ops.c
+++ b/arch/powerpc/platforms/cell/spufs/hw_ops.c
@@ -147,7 +147,7 @@ static void spu_hw_signal1_write(struct spu_context *ctx, u32 data)
 
 static u32 spu_hw_signal2_read(struct spu_context *ctx)
 {
-	return in_be32(&ctx->spu->problem->signal_notify1);
+	return in_be32(&ctx->spu->problem->signal_notify2);
 }
 
 static void spu_hw_signal2_write(struct spu_context *ctx, u32 data)
diff --git a/arch/powerpc/platforms/chrp/setup.c b/arch/powerpc/platforms/chrp/setup.c
index cae3d13..49b8dab 100644
--- a/arch/powerpc/platforms/chrp/setup.c
+++ b/arch/powerpc/platforms/chrp/setup.c
@@ -477,8 +477,10 @@ static void __init chrp_find_8259(void)
 		       " address, polling\n");
 
 	i8259_init(pic, chrp_int_ack);
-	if (ppc_md.get_irq == NULL)
+	if (ppc_md.get_irq == NULL) {
 		ppc_md.get_irq = i8259_irq;
+		irq_set_default_host(i8259_get_host());
+	}
 	if (chrp_mpic != NULL) {
 		cascade_irq = irq_of_parse_and_map(pic, 0);
 		if (cascade_irq == NO_IRQ)
diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index a0ff7ba..6f73469 100644
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -694,6 +694,11 @@ void * __init iSeries_early_setup(void)
 {
 	unsigned long phys_mem_size;
 
+	/* Identify CPU type. This is done again by the common code later
+	 * on but calling this function multiple times is fine.
+	 */
+	identify_cpu(0);
+
 	powerpc_firmware_features |= FW_FEATURE_ISERIES;
 	powerpc_firmware_features |= FW_FEATURE_LPAR;
 
diff --git a/arch/powerpc/platforms/powermac/sleep.S b/arch/powerpc/platforms/powermac/sleep.S
index 1174ca1..adee28d 100644
--- a/arch/powerpc/platforms/powermac/sleep.S
+++ b/arch/powerpc/platforms/powermac/sleep.S
@@ -45,7 +45,8 @@
 	.section .text
 	.align	5
 
-#if defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ_PMAC)
+#if defined(CONFIG_PM) || defined(CONFIG_CPU_FREQ_PMAC) || \
+    (defined(CONFIG_HOTPLUG_CPU) && defined(CONFIG_PPC32))
 
 /* This gets called by via-pmu.c late during the sleep process.
  * The PMU was already send the sleep command and will shut us down
diff --git a/arch/powerpc/sysdev/i8259.c b/arch/powerpc/sysdev/i8259.c
index 0450265..ad87adc9 100644
--- a/arch/powerpc/sysdev/i8259.c
+++ b/arch/powerpc/sysdev/i8259.c
@@ -224,6 +224,11 @@ static struct irq_host_ops i8259_host_ops = {
 	.xlate = i8259_host_xlate,
 };
 
+struct irq_host *i8259_get_host(void)
+{
+	return i8259_host;
+}
+
 /**
  * i8259_init - Initialize the legacy controller
  * @node: device node of the legacy PIC (can be NULL, but then, it will match
diff --git a/arch/powerpc/sysdev/ipic.c b/arch/powerpc/sysdev/ipic.c
index bc4d4a7..746f78c 100644
--- a/arch/powerpc/sysdev/ipic.c
+++ b/arch/powerpc/sysdev/ipic.c
@@ -473,9 +473,9 @@ static int ipic_set_irq_type(unsigned int virq, unsigned int flow_type)
 	desc->status |= flow_type & IRQ_TYPE_SENSE_MASK;
 	if (flow_type & IRQ_TYPE_LEVEL_LOW)  {
 		desc->status |= IRQ_LEVEL;
-		set_irq_handler(virq, handle_level_irq);
+		desc->handle_irq = handle_level_irq;
 	} else {
-		set_irq_handler(virq, handle_edge_irq);
+		desc->handle_irq = handle_edge_irq;
 	}
 
 	/* only EXT IRQ senses are programmable on ipic
diff --git a/arch/powerpc/sysdev/qe_lib/ucc.c b/arch/powerpc/sysdev/qe_lib/ucc.c
index 916c9e5..ac12a44 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc.c
@@ -207,6 +207,7 @@ int ucc_set_qe_mux_rxtx(int ucc_num, enum qe_clock clock, enum comm_dir mode)
 		case QE_CLK18:	source = 8; break;
 		case QE_CLK7:	source = 9; break;
 		case QE_CLK8:	source = 10; break;
+		case QE_CLK16:	source = 11; break;
 		default:	source = -1; break;
 		}
 		break;
@@ -222,6 +223,7 @@ int ucc_set_qe_mux_rxtx(int ucc_num, enum qe_clock clock, enum comm_dir mode)
 		case QE_CLK22:	source = 8; break;
 		case QE_CLK7:	source = 9; break;
 		case QE_CLK8:	source = 10; break;
+		case QE_CLK16:	source = 11; break;
 		default: 	source = -1; break;
 		}
 		break;
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
index c2be734..75fa310 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
@@ -163,7 +163,7 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 
 	/* check if the UCC port number is in range. */
 	if ((uf_info->ucc_num < 0) || (uf_info->ucc_num > UCC_MAX_NUM - 1)) {
-		uccf_err("ucc_fast_init: Illagal UCC number!");
+		uccf_err("ucc_fast_init: Illegal UCC number!");
 		return -EINVAL;
 	}
 
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
index 1fb88ef..a49da6b 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
@@ -152,7 +152,7 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 
 	/* check if the UCC port number is in range. */
 	if ((us_info->ucc_num < 0) || (us_info->ucc_num > UCC_MAX_NUM - 1)) {
-		uccs_err("ucc_slow_init: Illagal UCC number!");
+		uccs_err("ucc_slow_init: Illegal UCC number!");
 		return -EINVAL;
 	}
 
diff --git a/arch/powerpc/sysdev/tsi108_dev.c b/arch/powerpc/sysdev/tsi108_dev.c
index 11de090..97f37ef 100644
--- a/arch/powerpc/sysdev/tsi108_dev.c
+++ b/arch/powerpc/sysdev/tsi108_dev.c
@@ -48,7 +48,7 @@ phys_addr_t get_csrbase(void)
 	tsi = of_find_node_by_type(NULL, "tsi-bridge");
 	if (tsi) {
 		unsigned int size;
-		void *prop = get_property(tsi, "reg", &size);
+		const void *prop = get_property(tsi, "reg", &size);
 		tsi108_csr_base = of_translate_address(tsi, prop);
 		of_node_put(tsi);
 	};
@@ -79,7 +79,7 @@ static int __init tsi108_eth_of_init(void)
 		hw_info tsi_eth_data;
 		unsigned int *id;
 		unsigned int *phy_id;
-		void *mac_addr;
+		const void *mac_addr;
 		phandle *ph;
 
 		memset(r, 0, sizeof(r));
diff --git a/arch/ppc/boot/simple/relocate.S b/arch/ppc/boot/simple/relocate.S
index 0c02155..1bbbcd2 100644
--- a/arch/ppc/boot/simple/relocate.S
+++ b/arch/ppc/boot/simple/relocate.S
@@ -154,8 +154,8 @@ do_relocate_out:
 
 start_ldr:
 /* Clear all of BSS and set up stack for C calls */
-	lis	r3,edata@h
-	ori	r3,r3,edata@l
+	lis	r3,__bss_start@h
+	ori	r3,r3,__bss_start@l
 	lis	r4,end@h
 	ori	r4,r4,end@l
 	subi	r3,r3,4
@@ -163,7 +163,7 @@ start_ldr:
 	li	r0,0
 50:	stwu	r0,4(r3)
 	cmpw	cr0,r3,r4
-	bne	50b
+	blt	50b
 90:	mr	r9,r1		/* Save old stack pointer (in case it matters) */
 	lis	r1,.stack@h
 	ori	r1,r1,.stack@l
diff --git a/arch/ppc/kernel/misc.S b/arch/ppc/kernel/misc.S
index 5f66840..d319f9b 100644
--- a/arch/ppc/kernel/misc.S
+++ b/arch/ppc/kernel/misc.S
@@ -110,80 +110,6 @@ _GLOBAL(reloc_got2)
 	blr
 
 /*
- * identify_cpu,
- * called with r3 = data offset and r4 = CPU number
- * doesn't change r3
- */
-_GLOBAL(identify_cpu)
-	addis	r8,r3,cpu_specs@ha
-	addi	r8,r8,cpu_specs@l
-	mfpvr	r7
-1:
-	lwz	r5,CPU_SPEC_PVR_MASK(r8)
-	and	r5,r5,r7
-	lwz	r6,CPU_SPEC_PVR_VALUE(r8)
-	cmplw	0,r6,r5
-	beq	1f
-	addi	r8,r8,CPU_SPEC_ENTRY_SIZE
-	b	1b
-1:
-	addis	r6,r3,cur_cpu_spec@ha
-	addi	r6,r6,cur_cpu_spec@l
-	sub	r8,r8,r3
-	stw	r8,0(r6)
-	blr
-
-/*
- * do_cpu_ftr_fixups - goes through the list of CPU feature fixups
- * and writes nop's over sections of code that don't apply for this cpu.
- * r3 = data offset (not changed)
- */
-_GLOBAL(do_cpu_ftr_fixups)
-	/* Get CPU 0 features */
-	addis	r6,r3,cur_cpu_spec@ha
-	addi	r6,r6,cur_cpu_spec@l
-	lwz	r4,0(r6)
-	add	r4,r4,r3
-	lwz	r4,CPU_SPEC_FEATURES(r4)
-
-	/* Get the fixup table */
-	addis	r6,r3,__start___ftr_fixup@ha
-	addi	r6,r6,__start___ftr_fixup@l
-	addis	r7,r3,__stop___ftr_fixup@ha
-	addi	r7,r7,__stop___ftr_fixup@l
-
-	/* Do the fixup */
-1:	cmplw	0,r6,r7
-	bgelr
-	addi	r6,r6,16
-	lwz	r8,-16(r6)	/* mask */
-	and	r8,r8,r4
-	lwz	r9,-12(r6)	/* value */
-	cmplw	0,r8,r9
-	beq	1b
-	lwz	r8,-8(r6)	/* section begin */
-	lwz	r9,-4(r6)	/* section end */
-	subf.	r9,r8,r9
-	beq	1b
-	/* write nops over the section of code */
-	/* todo: if large section, add a branch at the start of it */
-	srwi	r9,r9,2
-	mtctr	r9
-	add	r8,r8,r3
-	lis	r0,0x60000000@h	/* nop */
-3:	stw	r0,0(r8)
-	andi.	r10,r4,CPU_FTR_SPLIT_ID_CACHE@l
-	beq	2f
-	dcbst	0,r8		/* suboptimal, but simpler */
-	sync
-	icbi	0,r8
-2:	addi	r8,r8,4
-	bdnz	3b
-	sync			/* additional sync needed on g4 */
-	isync
-	b	1b
-
-/*
  * call_setup_cpu - call the setup_cpu function for this cpu
  * r3 = data offset, r24 = cpu number
  *
diff --git a/arch/ppc/kernel/setup.c b/arch/ppc/kernel/setup.c
index 75fe138..27faeca 100644
--- a/arch/ppc/kernel/setup.c
+++ b/arch/ppc/kernel/setup.c
@@ -38,6 +38,7 @@
 #include <asm/nvram.h>
 #include <asm/xmon.h>
 #include <asm/ocp.h>
+#include <asm/prom.h>
 
 #define USES_PPC_SYS (defined(CONFIG_85xx) || defined(CONFIG_83xx) || \
 		      defined(CONFIG_MPC10X_BRIDGE) || defined(CONFIG_8260) || \
@@ -53,8 +54,6 @@
 
 extern void platform_init(unsigned long r3, unsigned long r4,
 		unsigned long r5, unsigned long r6, unsigned long r7);
-extern void identify_cpu(unsigned long offset, unsigned long cpu);
-extern void do_cpu_ftr_fixups(unsigned long offset);
 extern void reloc_got2(unsigned long offset);
 
 extern void ppc6xx_idle(void);
@@ -301,6 +300,7 @@ early_init(int r3, int r4, int r5)
 {
  	unsigned long phys;
 	unsigned long offset = reloc_offset();
+	struct cpu_spec *spec;
 
  	/* Default */
  	phys = offset + KERNELBASE;
@@ -313,8 +313,10 @@ early_init(int r3, int r4, int r5)
 	 * Identify the CPU type and fix up code sections
 	 * that depend on which cpu we have.
 	 */
-	identify_cpu(offset, 0);
-	do_cpu_ftr_fixups(offset);
+	spec = identify_cpu(offset);
+	do_feature_fixups(spec->cpu_features,
+			  PTRRELOC(&__start___ftr_fixup),
+			  PTRRELOC(&__stop___ftr_fixup));
 
 	return phys;
 }