19 files changed, 185 insertions, 208 deletions

diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 93f21aaf7c8e..3678997339d6 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -18,6 +18,7 @@
 #include <asm/io.h>
 #include <asm/lmb.h>
 #include <asm/processor.h>
+#include <asm/udbg.h>
 
 #define NO_SCROLL
 
@@ -912,3 +913,11 @@ static unsigned char vga_font[cmapsz] = {
 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
 0x00, 0x00, 0x00, 0x00,
 };
+
+void __init udbg_init_btext(void)
+{
+	/* If btext is enabled, we might have a BAT setup for early display,
+	 * thus we do enable some very basic udbg output
+	 */
+	udbg_putc = btext_drawchar;
+}
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index dd17dffbf058..7ec4ac77c0fa 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -44,7 +44,7 @@ extern void __setup_cpu_745x(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_ppc970MP(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
-extern void __restore_cpu_pa6t(unsigned long offset, struct cpu_spec* spec);
+extern void __restore_cpu_pa6t(void);
 extern void __restore_cpu_ppc970(void);
 #endif /* CONFIG_PPC64 */
 
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index accb39d49911..a15d4b8cce48 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -32,8 +32,6 @@
 #include <asm/page.h>
 #include <asm/mmu.h>
 #include <asm/pgtable.h>
-#include <asm/ibm4xx.h>
-#include <asm/ibm44x.h>
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 66877bdfe0b7..1f155d399d57 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -206,7 +206,8 @@ skpinv:	addi	r6,r6,1				/* Increment */
 	rlwimi	r7,r3,16,4,15	/* Setup MAS0 = TLBSEL | ESEL(r3) */
 	mtspr	SPRN_MAS0,r7
 	tlbre
-	li	r6,0
+	mfspr	r6,SPRN_MAS1
+	rlwinm	r6,r6,0,2,0	/* clear IPROT */
 	mtspr	SPRN_MAS1,r6
 	tlbwe
 	/* Invalidate TLB1 */
@@ -248,6 +249,8 @@ skpinv:	addi	r6,r6,1				/* Increment */
 	rlwimi	r7,r5,16,4,15	/* Setup MAS0 = TLBSEL | ESEL(r5) */
 	mtspr	SPRN_MAS0,r7
 	tlbre
+	mfspr	r8,SPRN_MAS1
+	rlwinm	r8,r8,0,2,0	/* clear IPROT */
 	mtspr	SPRN_MAS1,r8
 	tlbwe
 	/* Invalidate TLB1 */
@@ -889,7 +892,6 @@ load_up_spe:
 	REST_GPR(9, r11)
 	REST_GPR(12, r11)
 	lwz	r11,GPR11(r11)
-	SYNC
 	rfi
 
 /*
@@ -953,7 +955,6 @@ _GLOBAL(giveup_altivec)
 _GLOBAL(giveup_spe)
 	mfmsr	r5
 	oris	r5,r5,MSR_SPE@h
-	SYNC
 	mtmsr	r5			/* enable use of SPE now */
 	isync
 	cmpi	0,r3,0
diff --git a/arch/powerpc/kernel/idle.c b/arch/powerpc/kernel/idle.c
index 8994af327b47..6e7f50967bab 100644
--- a/arch/powerpc/kernel/idle.c
+++ b/arch/powerpc/kernel/idle.c
@@ -110,17 +110,22 @@ static ctl_table powersave_nap_ctl_table[]={
 		.mode		= 0644,
 		.proc_handler	= &proc_dointvec,
 	},
-	{ 0, },
+	{}
 };
 static ctl_table powersave_nap_sysctl_root[] = {
-	{ 1, "kernel", NULL, 0, 0755, powersave_nap_ctl_table, },
- 	{ 0,},
+	{
+		.ctl_name	= CTL_KERN,
+		.procname	= "kernel",
+		.mode		= 0755,
+		.child		= powersave_nap_ctl_table,
+	},
+	{}
 };
 
 static int __init
 register_powersave_nap_sysctl(void)
 {
-	register_sysctl_table(powersave_nap_sysctl_root, 0);
+	register_sysctl_table(powersave_nap_sysctl_root);
 
 	return 0;
 }
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index 5e6ddfa474c0..325f490a10cc 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -124,6 +124,10 @@ static int __init add_legacy_soc_port(struct device_node *np,
 	if (get_property(np, "clock-frequency", NULL) == NULL)
 		return -1;
 
+	/* if rtas uses this device, don't try to use it as well */
+	if (get_property(np, "used-by-rtas", NULL) != NULL)
+		return -1;
+
 	/* Get the address */
 	addrp = of_get_address(soc_dev, 0, NULL, NULL);
 	if (addrp == NULL)
@@ -334,6 +338,17 @@ void __init find_legacy_serial_ports(void)
 		of_node_put(tsi);
 	}
 
+	/* First fill our array with opb bus ports */
+	for (np = NULL; (np = of_find_compatible_node(np, "serial", "ns16750")) != NULL;) {
+		struct device_node *opb = of_get_parent(np);
+		if (opb && !strcmp(opb->type, "opb")) {
+			index = add_legacy_soc_port(np, np);
+			if (index >= 0 && np == stdout)
+				legacy_serial_console = index;
+		}
+		of_node_put(opb);
+	}
+
 #ifdef CONFIG_PCI
 	/* Next, try to locate PCI ports */
 	for (np = NULL; (np = of_find_all_nodes(np));) {
@@ -498,7 +513,7 @@ static int __init check_legacy_serial_console(void)
 	DBG(" -> check_legacy_serial_console()\n");
 
 	/* The user has requested a console so this is already set up. */
-	if (strstr(saved_command_line, "console=")) {
+	if (strstr(boot_command_line, "console=")) {
 		DBG(" console was specified !\n");
 		return -EBUSY;
 	}
diff --git a/arch/powerpc/kernel/lparcfg.c b/arch/powerpc/kernel/lparcfg.c
index 0de5a08cf9b0..89486b631284 100644
--- a/arch/powerpc/kernel/lparcfg.c
+++ b/arch/powerpc/kernel/lparcfg.c
@@ -571,7 +571,7 @@ static int lparcfg_open(struct inode *inode, struct file *file)
 	return single_open(file, lparcfg_data, NULL);
 }
 
-struct file_operations lparcfg_fops = {
+const struct file_operations lparcfg_fops = {
 	.owner		= THIS_MODULE,
 	.read		= seq_read,
 	.write		= lparcfg_write,
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index 869cebbba967..f9676f52c6d8 100644
--- a/arch/powerpc/kernel/nvram_64.c
+++ b/arch/powerpc/kernel/nvram_64.c
@@ -179,7 +179,7 @@ static int dev_nvram_ioctl(struct inode *inode, struct file *file,
 	}
 }
 
-struct file_operations nvram_fops = {
+const struct file_operations nvram_fops = {
 	.owner =	THIS_MODULE,
 	.llseek =	dev_nvram_llseek,
 	.read =		dev_nvram_read,
diff --git a/arch/powerpc/kernel/proc_ppc64.c b/arch/powerpc/kernel/proc_ppc64.c
index dd7001cacf75..f78dfce1b771 100644
--- a/arch/powerpc/kernel/proc_ppc64.c
+++ b/arch/powerpc/kernel/proc_ppc64.c
@@ -33,7 +33,7 @@ static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes
 			      loff_t *ppos);
 static int     page_map_mmap( struct file *file, struct vm_area_struct *vma );
 
-static struct file_operations page_map_fops = {
+static const struct file_operations page_map_fops = {
 	.llseek	= page_map_seek,
 	.read	= page_map_read,
 	.mmap	= page_map_mmap
@@ -71,7 +71,6 @@ static int __init proc_ppc64_init(void)
 	pde = create_proc_entry("ppc64/systemcfg", S_IFREG|S_IRUGO, NULL);
 	if (!pde)
 		return 1;
-	pde->nlink = 1;
 	pde->data = vdso_data;
 	pde->size = PAGE_SIZE;
 	pde->proc_fops = &page_map_fops;
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 3be52d693eca..3e86e6e0f778 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -991,7 +991,7 @@ void __init early_init_devtree(void *params)
 	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
 
 	/* Save command line for /proc/cmdline and then parse parameters */
-	strlcpy(saved_command_line, cmd_line, COMMAND_LINE_SIZE);
+	strlcpy(boot_command_line, cmd_line, COMMAND_LINE_SIZE);
 	parse_early_param();
 
 	/* Reserve LMB regions used by kernel, initrd, dt, etc... */
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 520ef42f642e..4fb5938ce6d3 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -2117,11 +2117,92 @@ static void __init fixup_device_tree_pmac(void)
 #define fixup_device_tree_pmac()
 #endif
 
+#ifdef CONFIG_PPC_EFIKA
+/* The current fw of the Efika has a device tree needs quite a few
+ * fixups to be compliant with the mpc52xx bindings. It's currently
+ * unknown if it will ever be compliant (come on bPlan ...) so we do fixups.
+ * NOTE that we (barely) tolerate it because the EFIKA was out before
+ * the bindings were finished, for any new boards -> RTFM ! */
+
+struct subst_entry {
+	char *path;
+	char *property;
+	void *value;
+	int value_len;
+};
+
+static void __init fixup_device_tree_efika(void)
+{
+	/* Substitution table */
+	#define prop_cstr(x) x, sizeof(x)
+	int prop_sound_irq[3] = { 2, 2, 0 };
+	int prop_bcomm_irq[3*16] = { 3,0,0, 3,1,0, 3,2,0, 3,3,0,
+	                             3,4,0, 3,5,0, 3,6,0, 3,7,0,
+	                             3,8,0, 3,9,0, 3,10,0, 3,11,0,
+	                             3,12,0, 3,13,0, 3,14,0, 3,15,0 };
+	struct subst_entry efika_subst_table[] = {
+		{ "/",			"device_type",	prop_cstr("efika") },
+		{ "/builtin",		"compatible",	prop_cstr("soc") },
+		{ "/builtin/ata",	"compatible",	prop_cstr("mpc5200b-ata\0mpc5200-ata"), },
+		{ "/builtin/bestcomm",	"compatible",	prop_cstr("mpc5200b-bestcomm\0mpc5200-bestcomm") },
+		{ "/builtin/bestcomm",	"interrupts",	prop_bcomm_irq, sizeof(prop_bcomm_irq) },
+		{ "/builtin/ethernet",	"compatible",	prop_cstr("mpc5200b-fec\0mpc5200-fec") },
+		{ "/builtin/pic",	"compatible",	prop_cstr("mpc5200b-pic\0mpc5200-pic") },
+		{ "/builtin/serial",	"compatible",	prop_cstr("mpc5200b-psc-uart\0mpc5200-psc-uart") },
+		{ "/builtin/sound",	"compatible",	prop_cstr("mpc5200b-psc-ac97\0mpc5200-psc-ac97") },
+		{ "/builtin/sound",	"interrupts",	prop_sound_irq, sizeof(prop_sound_irq) },
+		{ "/builtin/sram",	"compatible",	prop_cstr("mpc5200b-sram\0mpc5200-sram") },
+		{ "/builtin/sram",	"device_type",	prop_cstr("sram") },
+		{}
+	};
+	#undef prop_cstr
+
+	/* Vars */
+	u32 node;
+	char prop[64];
+	int rv, i;
+
+	/* Check if we're really running on a EFIKA */
+	node = call_prom("finddevice", 1, 1, ADDR("/"));
+	if (!PHANDLE_VALID(node))
+		return;
+
+	rv = prom_getprop(node, "model", prop, sizeof(prop));
+	if (rv == PROM_ERROR)
+		return;
+	if (strcmp(prop, "EFIKA5K2"))
+		return;
+
+	prom_printf("Applying EFIKA device tree fixups\n");
+
+	/* Process substitution table */
+	for (i=0; efika_subst_table[i].path; i++) {
+		struct subst_entry *se = &efika_subst_table[i];
+
+		node = call_prom("finddevice", 1, 1, ADDR(se->path));
+		if (!PHANDLE_VALID(node)) {
+			prom_printf("fixup_device_tree_efika: ",
+				"skipped entry %x - not found\n", i);
+			continue;
+		}
+
+		rv = prom_setprop(node, se->path, se->property,
+					se->value, se->value_len );
+		if (rv == PROM_ERROR)
+			prom_printf("fixup_device_tree_efika: ",
+				"skipped entry %x - setprop error\n", i);
+	}
+}
+#else
+#define fixup_device_tree_efika()
+#endif
+
 static void __init fixup_device_tree(void)
 {
 	fixup_device_tree_maple();
 	fixup_device_tree_chrp();
 	fixup_device_tree_pmac();
+	fixup_device_tree_efika();
 }
 
 static void __init prom_find_boot_cpu(void)
diff --git a/arch/powerpc/kernel/rtas-proc.c b/arch/powerpc/kernel/rtas-proc.c
index 2fe82abf1c52..6cbf2ae5d7aa 100644
--- a/arch/powerpc/kernel/rtas-proc.c
+++ b/arch/powerpc/kernel/rtas-proc.c
@@ -160,7 +160,7 @@ static int sensors_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_sensors_show, NULL);
 }
 
-struct file_operations ppc_rtas_sensors_operations = {
+const struct file_operations ppc_rtas_sensors_operations = {
 	.open		= sensors_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -172,7 +172,7 @@ static int poweron_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_poweron_show, NULL);
 }
 
-struct file_operations ppc_rtas_poweron_operations = {
+const struct file_operations ppc_rtas_poweron_operations = {
 	.open		= poweron_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -185,7 +185,7 @@ static int progress_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_progress_show, NULL);
 }
 
-struct file_operations ppc_rtas_progress_operations = {
+const struct file_operations ppc_rtas_progress_operations = {
 	.open		= progress_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -198,7 +198,7 @@ static int clock_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_clock_show, NULL);
 }
 
-struct file_operations ppc_rtas_clock_operations = {
+const struct file_operations ppc_rtas_clock_operations = {
 	.open		= clock_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -211,7 +211,7 @@ static int tone_freq_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_tone_freq_show, NULL);
 }
 
-struct file_operations ppc_rtas_tone_freq_operations = {
+const struct file_operations ppc_rtas_tone_freq_operations = {
 	.open		= tone_freq_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -224,7 +224,7 @@ static int tone_volume_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_tone_volume_show, NULL);
 }
 
-struct file_operations ppc_rtas_tone_volume_operations = {
+const struct file_operations ppc_rtas_tone_volume_operations = {
 	.open		= tone_volume_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
@@ -237,7 +237,7 @@ static int rmo_buf_open(struct inode *inode, struct file *file)
 	return single_open(file, ppc_rtas_rmo_buf_show, NULL);
 }
 
-struct file_operations ppc_rtas_rmo_buf_ops = {
+const struct file_operations ppc_rtas_rmo_buf_ops = {
 	.open		= rmo_buf_open,
 	.read		= seq_read,
 	.llseek		= seq_lseek,
diff --git a/arch/powerpc/kernel/rtas_flash.c b/arch/powerpc/kernel/rtas_flash.c
index 0c4fcd34bfe5..f72118c0844f 100644
--- a/arch/powerpc/kernel/rtas_flash.c
+++ b/arch/powerpc/kernel/rtas_flash.c
@@ -702,13 +702,12 @@ static int initialize_flash_pde_data(const char *rtas_call_name,
 }
 
 static struct proc_dir_entry *create_flash_pde(const char *filename,
-					       struct file_operations *fops)
+					       const struct file_operations *fops)
 {
 	struct proc_dir_entry *ent = NULL;
 
 	ent = create_proc_entry(filename, S_IRUSR | S_IWUSR, NULL);
 	if (ent != NULL) {
-		ent->nlink = 1;
 		ent->proc_fops = fops;
 		ent->owner = THIS_MODULE;
 	}
@@ -716,21 +715,21 @@ static struct proc_dir_entry *create_flash_pde(const char *filename,
 	return ent;
 }
 
-static struct file_operations rtas_flash_operations = {
+static const struct file_operations rtas_flash_operations = {
 	.read		= rtas_flash_read,
 	.write		= rtas_flash_write,
 	.open		= rtas_excl_open,
 	.release	= rtas_flash_release,
 };
 
-static struct file_operations manage_flash_operations = {
+static const struct file_operations manage_flash_operations = {
 	.read		= manage_flash_read,
 	.write		= manage_flash_write,
 	.open		= rtas_excl_open,
 	.release	= rtas_excl_release,
 };
 
-static struct file_operations validate_flash_operations = {
+static const struct file_operations validate_flash_operations = {
 	.read		= validate_flash_read,
 	.write		= validate_flash_write,
 	.open		= rtas_excl_open,
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index 6a19fa40dcee..44a6a3c47feb 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -116,12 +116,8 @@ unsigned long __init early_init(unsigned long dt_ptr)
  */
 void __init machine_init(unsigned long dt_ptr, unsigned long phys)
 {
-	/* If btext is enabled, we might have a BAT setup for early display,
-	 * thus we do enable some very basic udbg output
-	 */
-#ifdef CONFIG_BOOTX_TEXT
-	udbg_putc = btext_drawchar;
-#endif
+	/* Enable early debugging if any specified (see udbg.h) */
+	udbg_early_init();
 
 	/* Do some early initialization based on the flat device tree */
 	early_init_devtree(__va(dt_ptr));
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 0e8beca460af..924d692bc8f9 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -78,29 +78,6 @@ int smt_enabled_at_boot = 1;
 
 static void (*crash_ipi_function_ptr)(struct pt_regs *) = NULL;
 
-#ifdef CONFIG_MPIC
-int __init smp_mpic_probe(void)
-{
-	int nr_cpus;
-
-	DBG("smp_mpic_probe()...\n");
-
-	nr_cpus = cpus_weight(cpu_possible_map);
-
-	DBG("nr_cpus: %d\n", nr_cpus);
-
-	if (nr_cpus > 1)
-		mpic_request_ipis();
-
-	return nr_cpus;
-}
-
-void __devinit smp_mpic_setup_cpu(int cpu)
-{
-	mpic_setup_this_cpu();
-}
-#endif /* CONFIG_MPIC */
-
 #ifdef CONFIG_PPC64
 void __devinit smp_generic_kick_cpu(int nr)
 {
diff --git a/arch/powerpc/kernel/sys_ppc32.c b/arch/powerpc/kernel/sys_ppc32.c
index 03a2a2f30d66..673e8d9df7f5 100644
--- a/arch/powerpc/kernel/sys_ppc32.c
+++ b/arch/powerpc/kernel/sys_ppc32.c
@@ -198,73 +198,6 @@ static inline long put_tv32(struct compat_timeval __user *o, struct timeval *i)
 		 __put_user(i->tv_usec, &o->tv_usec)));
 }
 
-struct sysinfo32 {
-        s32 uptime;
-        u32 loads[3];
-        u32 totalram;
-        u32 freeram;
-        u32 sharedram;
-        u32 bufferram;
-        u32 totalswap;
-        u32 freeswap;
-        unsigned short procs;
-	unsigned short pad;
-	u32 totalhigh;
-	u32 freehigh;
-	u32 mem_unit;
-	char _f[20-2*sizeof(int)-sizeof(int)];
-};
-
-asmlinkage long compat_sys_sysinfo(struct sysinfo32 __user *info)
-{
-	struct sysinfo s;
-	int ret, err;
-	int bitcount=0;
-	mm_segment_t old_fs = get_fs ();
-	
-	/* The __user cast is valid due to set_fs() */
-	set_fs (KERNEL_DS);
-	ret = sys_sysinfo((struct sysinfo __user *)&s);
-	set_fs (old_fs);
-
-	/* Check to see if any memory value is too large for 32-bit and
-         * scale down if needed.
-         */
-	if ((s.totalram >> 32) || (s.totalswap >> 32)) {
-	    while (s.mem_unit < PAGE_SIZE) {
-		s.mem_unit <<= 1;
-		bitcount++;
-	    }
-	    s.totalram >>=bitcount;
-	    s.freeram >>= bitcount;
-	    s.sharedram >>= bitcount;
-	    s.bufferram >>= bitcount;
-	    s.totalswap >>= bitcount;
-	    s.freeswap >>= bitcount;
-	    s.totalhigh >>= bitcount;
-	    s.freehigh >>= bitcount;
-	}
-
-	err = put_user (s.uptime, &info->uptime);
-	err |= __put_user (s.loads[0], &info->loads[0]);
-	err |= __put_user (s.loads[1], &info->loads[1]);
-	err |= __put_user (s.loads[2], &info->loads[2]);
-	err |= __put_user (s.totalram, &info->totalram);
-	err |= __put_user (s.freeram, &info->freeram);
-	err |= __put_user (s.sharedram, &info->sharedram);
-	err |= __put_user (s.bufferram, &info->bufferram);
-	err |= __put_user (s.totalswap, &info->totalswap);
-	err |= __put_user (s.freeswap, &info->freeswap);
-	err |= __put_user (s.procs, &info->procs);
-	err |= __put_user (s.totalhigh, &info->totalhigh);
-	err |= __put_user (s.freehigh, &info->freehigh);
-	err |= __put_user (s.mem_unit, &info->mem_unit);
-	if (err)
-		return -EFAULT;
-	
-	return ret;
-}
-
 
 
 
diff --git a/arch/powerpc/kernel/udbg.c b/arch/powerpc/kernel/udbg.c
index 8f5afdbad0d5..7e0971868fc2 100644
--- a/arch/powerpc/kernel/udbg.c
+++ b/arch/powerpc/kernel/udbg.c
@@ -49,6 +49,8 @@ void __init udbg_early_init(void)
 	udbg_init_debug_beat();
 #elif defined(CONFIG_PPC_EARLY_DEBUG_PAS_REALMODE)
 	udbg_init_pas_realmode();
+#elif defined(CONFIG_BOOTX_TEXT)
+	udbg_init_btext();
 #endif
 }
 
@@ -150,7 +152,7 @@ void __init disable_early_printk(void)
 {
 	if (!early_console_initialized)
 		return;
-	if (strstr(saved_command_line, "udbg-immortal")) {
+	if (strstr(boot_command_line, "udbg-immortal")) {
 		printk(KERN_INFO "early console immortal !\n");
 		return;
 	}
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index ae0ede19879d..e46c31b36641 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -51,17 +51,21 @@
 
 extern char vdso32_start, vdso32_end;
 static void *vdso32_kbase = &vdso32_start;
-unsigned int vdso32_pages;
+static unsigned int vdso32_pages;
+static struct page **vdso32_pagelist;
 unsigned long vdso32_sigtramp;
 unsigned long vdso32_rt_sigtramp;
 
 #ifdef CONFIG_PPC64
 extern char vdso64_start, vdso64_end;
 static void *vdso64_kbase = &vdso64_start;
-unsigned int vdso64_pages;
+static unsigned int vdso64_pages;
+static struct page **vdso64_pagelist;
 unsigned long vdso64_rt_sigtramp;
 #endif /* CONFIG_PPC64 */
 
+static int vdso_ready;
+
 /*
  * The vdso data page (aka. systemcfg for old ppc64 fans) is here.
  * Once the early boot kernel code no longer needs to muck around
@@ -165,55 +169,6 @@ static void dump_vdso_pages(struct vm_area_struct * vma)
 #endif /* DEBUG */
 
 /*
- * Keep a dummy vma_close for now, it will prevent VMA merging.
- */
-static void vdso_vma_close(struct vm_area_struct * vma)
-{
-}
-
-/*
- * Our nopage() function, maps in the actual vDSO kernel pages, they will
- * be mapped read-only by do_no_page(), and eventually COW'ed, either
- * right away for an initial write access, or by do_wp_page().
- */
-static struct page * vdso_vma_nopage(struct vm_area_struct * vma,
-				     unsigned long address, int *type)
-{
-	unsigned long offset = address - vma->vm_start;
-	struct page *pg;
-#ifdef CONFIG_PPC64
-	void *vbase = (vma->vm_mm->task_size > TASK_SIZE_USER32) ?
-		vdso64_kbase : vdso32_kbase;
-#else
-	void *vbase = vdso32_kbase;
-#endif
-
-	DBG("vdso_vma_nopage(current: %s, address: %016lx, off: %lx)\n",
-	    current->comm, address, offset);
-
-	if (address < vma->vm_start || address > vma->vm_end)
-		return NOPAGE_SIGBUS;
-
-	/*
-	 * Last page is systemcfg.
-	 */
-	if ((vma->vm_end - address) <= PAGE_SIZE)
-		pg = virt_to_page(vdso_data);
-	else
-		pg = virt_to_page(vbase + offset);
-
-	get_page(pg);
-	DBG(" ->page count: %d\n", page_count(pg));
-
-	return pg;
-}
-
-static struct vm_operations_struct vdso_vmops = {
-	.close	= vdso_vma_close,
-	.nopage	= vdso_vma_nopage,
-};
-
-/*
  * This is called from binfmt_elf, we create the special vma for the
  * vDSO and insert it into the mm struct tree
  */
@@ -221,20 +176,26 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 				int executable_stack)
 {
 	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
+	struct page **vdso_pagelist;
 	unsigned long vdso_pages;
 	unsigned long vdso_base;
 	int rc;
 
+	if (!vdso_ready)
+		return 0;
+
 #ifdef CONFIG_PPC64
 	if (test_thread_flag(TIF_32BIT)) {
+		vdso_pagelist = vdso32_pagelist;
 		vdso_pages = vdso32_pages;
 		vdso_base = VDSO32_MBASE;
 	} else {
+		vdso_pagelist = vdso64_pagelist;
 		vdso_pages = vdso64_pages;
 		vdso_base = VDSO64_MBASE;
 	}
 #else
+	vdso_pagelist = vdso32_pagelist;
 	vdso_pages = vdso32_pages;
 	vdso_base = VDSO32_MBASE;
 #endif
@@ -262,17 +223,6 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 		goto fail_mmapsem;
 	}
 
-
-	/* Allocate a VMA structure and fill it up */
-	vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
-	if (vma == NULL) {
-		rc = -ENOMEM;
-		goto fail_mmapsem;
-	}
-	vma->vm_mm = mm;
-	vma->vm_start = vdso_base;
-	vma->vm_end = vma->vm_start + (vdso_pages << PAGE_SHIFT);
-
 	/*
 	 * our vma flags don't have VM_WRITE so by default, the process isn't
 	 * allowed to write those pages.
@@ -282,32 +232,26 @@ int arch_setup_additional_pages(struct linux_binprm *bprm,
 	 * and your nice userland gettimeofday will be totally dead.
 	 * It's fine to use that for setting breakpoints in the vDSO code
 	 * pages though
-	 */
-	vma->vm_flags = VM_READ|VM_EXEC|VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC;
-	/*
+	 *
 	 * Make sure the vDSO gets into every core dump.
 	 * Dumping its contents makes post-mortem fully interpretable later
 	 * without matching up the same kernel and hardware config to see
 	 * what PC values meant.
 	 */
-	vma->vm_flags |= VM_ALWAYSDUMP;
-	vma->vm_flags |= mm->def_flags;
-	vma->vm_page_prot = protection_map[vma->vm_flags & 0x7];
-	vma->vm_ops = &vdso_vmops;
-
-	/* Insert new VMA */
-	rc = insert_vm_struct(mm, vma);
+	rc = install_special_mapping(mm, vdso_base, vdso_pages << PAGE_SHIFT,
+				     VM_READ|VM_EXEC|
+				     VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC|
+				     VM_ALWAYSDUMP,
+				     vdso_pagelist);
 	if (rc)
-		goto fail_vma;
+		goto fail_mmapsem;
 
-	/* Put vDSO base into mm struct and account for memory usage */
+	/* Put vDSO base into mm struct */
 	current->mm->context.vdso_base = vdso_base;
-	mm->total_vm += (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+
 	up_write(&mm->mmap_sem);
 	return 0;
 
- fail_vma:
-	kmem_cache_free(vm_area_cachep, vma);
  fail_mmapsem:
 	up_write(&mm->mmap_sem);
 	return rc;
@@ -719,7 +663,7 @@ static void __init vdso_setup_syscall_map(void)
 }
 
 
-void __init vdso_init(void)
+static int __init vdso_init(void)
 {
 	int i;
 
@@ -774,26 +718,44 @@ void __init vdso_init(void)
 #ifdef CONFIG_PPC64
 		vdso64_pages = 0;
 #endif
-		return;
+		return 0;
 	}
 
 	/* Make sure pages are in the correct state */
+	vdso32_pagelist = kzalloc(sizeof(struct page *) * (vdso32_pages + 2),
+				  GFP_KERNEL);
+	BUG_ON(vdso32_pagelist == NULL);
 	for (i = 0; i < vdso32_pages; i++) {
 		struct page *pg = virt_to_page(vdso32_kbase + i*PAGE_SIZE);
 		ClearPageReserved(pg);
 		get_page(pg);
-
+		vdso32_pagelist[i] = pg;
 	}
+	vdso32_pagelist[i++] = virt_to_page(vdso_data);
+	vdso32_pagelist[i] = NULL;
+
 #ifdef CONFIG_PPC64
+	vdso64_pagelist = kzalloc(sizeof(struct page *) * (vdso64_pages + 2),
+				  GFP_KERNEL);
+	BUG_ON(vdso64_pagelist == NULL);
 	for (i = 0; i < vdso64_pages; i++) {
 		struct page *pg = virt_to_page(vdso64_kbase + i*PAGE_SIZE);
 		ClearPageReserved(pg);
 		get_page(pg);
+		vdso64_pagelist[i] = pg;
 	}
+	vdso64_pagelist[i++] = virt_to_page(vdso_data);
+	vdso64_pagelist[i] = NULL;
 #endif /* CONFIG_PPC64 */
 
 	get_page(virt_to_page(vdso_data));
+
+	smp_wmb();
+	vdso_ready = 1;
+
+	return 0;
 }
+arch_initcall(vdso_init);
 
 int in_gate_area_no_task(unsigned long addr)
 {
diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S
index 04b8e71bf5b0..7eefeb4a30e7 100644
--- a/arch/powerpc/kernel/vmlinux.lds.S
+++ b/arch/powerpc/kernel/vmlinux.lds.S
@@ -131,14 +131,14 @@ SECTIONS
 		__stop___fw_ftr_fixup = .;
 	}
 #endif
-
+#ifdef CONFIG_BLK_DEV_INITRD
 	. = ALIGN(PAGE_SIZE);
 	.init.ramfs : {
 		__initramfs_start = .;
 		*(.init.ramfs)
 		__initramfs_end = .;
 	}
-
+#endif
 #ifdef CONFIG_PPC32
 	. = ALIGN(32);
 #else