21 files changed, 66 insertions, 535 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 51244bf97271..e5f3794744f1 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -404,6 +404,8 @@ config PMC_MSP
 	select IRQ_CPU
 	select SERIAL_8250
 	select SERIAL_8250_CONSOLE
+	select USB_EHCI_BIG_ENDIAN_MMIO
+	select USB_EHCI_BIG_ENDIAN_DESC
 	help
 	  This adds support for the PMC-Sierra family of Multi-Service
 	  Processor System-On-A-Chips.  These parts include a number
@@ -1433,6 +1435,7 @@ config CPU_CAVIUM_OCTEON
 	select CPU_SUPPORTS_HUGEPAGES
 	select LIBFDT
 	select USE_OF
+	select USB_EHCI_BIG_ENDIAN_MMIO
 	help
 	  The Cavium Octeon processor is a highly integrated chip containing
 	  many ethernet hardware widgets for networking tasks. The processor
@@ -1736,7 +1739,6 @@ config 32BIT
 config 64BIT
 	bool "64-bit kernel"
 	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
-	select HAVE_SYSCALL_WRAPPERS
 	help
 	  Select this option if you want to build a 64-bit kernel.
 
@@ -2538,7 +2540,14 @@ source "kernel/power/Kconfig"
 
 endmenu
 
-source "arch/mips/kernel/cpufreq/Kconfig"
+config MIPS_EXTERNAL_TIMER
+	bool
+
+if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
+menu "CPU Power Management"
+source "drivers/cpufreq/Kconfig"
+endmenu
+endif
 
 source "net/Kconfig"
 
diff --git a/arch/mips/bcm63xx/dev-spi.c b/arch/mips/bcm63xx/dev-spi.c
index f1c9c3e2f678..e97fd60e92ef 100644
--- a/arch/mips/bcm63xx/dev-spi.c
+++ b/arch/mips/bcm63xx/dev-spi.c
@@ -85,20 +85,9 @@ static struct platform_device bcm63xx_spi_device = {
 
 int __init bcm63xx_spi_register(void)
 {
-	struct clk *periph_clk;
-
 	if (BCMCPU_IS_6328() || BCMCPU_IS_6345())
 		return -ENODEV;
 
-	periph_clk = clk_get(NULL, "periph");
-	if (IS_ERR(periph_clk)) {
-		pr_err("unable to get periph clock\n");
-		return -ENODEV;
-	}
-
-	/* Set bus frequency */
-	spi_pdata.speed_hz = clk_get_rate(periph_clk);
-
 	spi_resources[0].start = bcm63xx_regset_address(RSET_SPI);
 	spi_resources[0].end = spi_resources[0].start;
 	spi_resources[1].start = bcm63xx_get_irq_number(IRQ_SPI);
diff --git a/arch/mips/include/asm/hugetlb.h b/arch/mips/include/asm/hugetlb.h
index ef99db994c2f..fe0d15d32660 100644
--- a/arch/mips/include/asm/hugetlb.h
+++ b/arch/mips/include/asm/hugetlb.h
@@ -10,6 +10,7 @@
 #define __ASM_HUGETLB_H
 
 #include <asm/page.h>
+#include <asm-generic/hugetlb.h>
 
 
 static inline int is_hugepage_only_range(struct mm_struct *mm,
diff --git a/arch/mips/include/asm/linkage.h b/arch/mips/include/asm/linkage.h
index e9a940d1b0c6..2767dda9e309 100644
--- a/arch/mips/include/asm/linkage.h
+++ b/arch/mips/include/asm/linkage.h
@@ -6,5 +6,8 @@
 #endif
 
 #define __weak __attribute__((weak))
+#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall")
+#define SYSCALL_ALIAS(alias, name)					\
+	asm ( #alias " = " #name "\n\t.globl " #alias)
 
 #endif
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
index c9bae1362606..b0184cf02575 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm63xx_dev_spi.h
@@ -13,7 +13,6 @@ struct bcm63xx_spi_pdata {
 	unsigned int	msg_ctl_width;
 	int		bus_num;
 	int		num_chipselect;
-	u32		speed_hz;
 };
 
 enum bcm63xx_regs_spi {
diff --git a/arch/mips/include/asm/unistd.h b/arch/mips/include/asm/unistd.h
index 64f661e32879..63c9c886173a 100644
--- a/arch/mips/include/asm/unistd.h
+++ b/arch/mips/include/asm/unistd.h
@@ -63,12 +63,4 @@
 
 #endif /* !__ASSEMBLY__ */
 
-/*
- * "Conditional" syscalls
- *
- * What we want is __attribute__((weak,alias("sys_ni_syscall"))),
- * but it doesn't work on all toolchains, so we just do it by hand
- */
-#define cond_syscall(x) asm(".weak\t" #x "\n" #x "\t=\tsys_ni_syscall")
-
 #endif /* _ASM_UNISTD_H */
diff --git a/arch/mips/include/uapi/asm/socket.h b/arch/mips/include/uapi/asm/socket.h
index 47132f44c955..3b211507be7f 100644
--- a/arch/mips/include/uapi/asm/socket.h
+++ b/arch/mips/include/uapi/asm/socket.h
@@ -90,4 +90,6 @@
 
 #define SO_LOCK_FILTER		44
 
+#define SO_SELECT_ERR_QUEUE	45
+
 #endif /* _UAPI_ASM_SOCKET_H */
diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile
index de75fb50562b..520a908d45d6 100644
--- a/arch/mips/kernel/Makefile
+++ b/arch/mips/kernel/Makefile
@@ -92,8 +92,6 @@ CFLAGS_cpu-bugs64.o	= $(shell if $(CC) $(KBUILD_CFLAGS) -Wa,-mdaddi -c -o /dev/n
 
 obj-$(CONFIG_HAVE_STD_PC_SERIAL_PORT)	+= 8250-platform.o
 
-obj-$(CONFIG_MIPS_CPUFREQ)	+= cpufreq/
-
 obj-$(CONFIG_PERF_EVENTS)	+= perf_event.o
 obj-$(CONFIG_HW_PERF_EVENTS)	+= perf_event_mipsxx.o
 
diff --git a/arch/mips/kernel/cpufreq/Kconfig b/arch/mips/kernel/cpufreq/Kconfig
deleted file mode 100644
index 58c601eee6fd..000000000000
--- a/arch/mips/kernel/cpufreq/Kconfig
+++ /dev/null
@@ -1,41 +0,0 @@
-#
-# CPU Frequency scaling
-#
-
-config MIPS_EXTERNAL_TIMER
-	bool
-
-config MIPS_CPUFREQ
-	bool
-	default y
-	depends on CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
-
-if MIPS_CPUFREQ
-
-menu "CPU Frequency scaling"
-
-source "drivers/cpufreq/Kconfig"
-
-if CPU_FREQ
-
-comment "CPUFreq processor drivers"
-
-config LOONGSON2_CPUFREQ
-	tristate "Loongson2 CPUFreq Driver"
-	select CPU_FREQ_TABLE
-	depends on MIPS_CPUFREQ
-	help
-	  This option adds a CPUFreq driver for loongson processors which
-	  support software configurable cpu frequency.
-
-	  Loongson2F and it's successors support this feature.
-
-	  For details, take a look at <file:Documentation/cpu-freq/>.
-
-	  If in doubt, say N.
-
-endif	# CPU_FREQ
-
-endmenu
-
-endif	# MIPS_CPUFREQ
diff --git a/arch/mips/kernel/cpufreq/Makefile b/arch/mips/kernel/cpufreq/Makefile
deleted file mode 100644
index 05a5715ee38c..000000000000
--- a/arch/mips/kernel/cpufreq/Makefile
+++ /dev/null
@@ -1,5 +0,0 @@
-#
-# Makefile for the Linux/MIPS cpufreq.
-#
-
-obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
diff --git a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c b/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
deleted file mode 100644
index 3237c5235f9c..000000000000
--- a/arch/mips/kernel/cpufreq/loongson2_cpufreq.c
+++ /dev/null
@@ -1,255 +0,0 @@
-/*
- * Cpufreq driver for the loongson-2 processors
- *
- * The 2E revision of loongson processor not support this feature.
- *
- * Copyright (C) 2006 - 2008 Lemote Inc. & Insititute of Computing Technology
- * Author: Yanhua, yanh@lemote.com
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- */
-#include <linux/cpufreq.h>
-#include <linux/module.h>
-#include <linux/err.h>
-#include <linux/sched.h>	/* set_cpus_allowed() */
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-
-#include <asm/clock.h>
-
-#include <asm/mach-loongson/loongson.h>
-
-static uint nowait;
-
-static struct clk *cpuclk;
-
-static void (*saved_cpu_wait) (void);
-
-static int loongson2_cpu_freq_notifier(struct notifier_block *nb,
-					unsigned long val, void *data);
-
-static struct notifier_block loongson2_cpufreq_notifier_block = {
-	.notifier_call = loongson2_cpu_freq_notifier
-};
-
-static int loongson2_cpu_freq_notifier(struct notifier_block *nb,
-					unsigned long val, void *data)
-{
-	if (val == CPUFREQ_POSTCHANGE)
-		current_cpu_data.udelay_val = loops_per_jiffy;
-
-	return 0;
-}
-
-static unsigned int loongson2_cpufreq_get(unsigned int cpu)
-{
-	return clk_get_rate(cpuclk);
-}
-
-/*
- * Here we notify other drivers of the proposed change and the final change.
- */
-static int loongson2_cpufreq_target(struct cpufreq_policy *policy,
-				     unsigned int target_freq,
-				     unsigned int relation)
-{
-	unsigned int cpu = policy->cpu;
-	unsigned int newstate = 0;
-	cpumask_t cpus_allowed;
-	struct cpufreq_freqs freqs;
-	unsigned int freq;
-
-	if (!cpu_online(cpu))
-		return -ENODEV;
-
-	cpus_allowed = current->cpus_allowed;
-	set_cpus_allowed_ptr(current, cpumask_of(cpu));
-
-	if (cpufreq_frequency_table_target
-	    (policy, &loongson2_clockmod_table[0], target_freq, relation,
-	     &newstate))
-		return -EINVAL;
-
-	freq =
-	    ((cpu_clock_freq / 1000) *
-	     loongson2_clockmod_table[newstate].index) / 8;
-	if (freq < policy->min || freq > policy->max)
-		return -EINVAL;
-
-	pr_debug("cpufreq: requested frequency %u Hz\n", target_freq * 1000);
-
-	freqs.cpu = cpu;
-	freqs.old = loongson2_cpufreq_get(cpu);
-	freqs.new = freq;
-	freqs.flags = 0;
-
-	if (freqs.new == freqs.old)
-		return 0;
-
-	/* notifiers */
-	cpufreq_notify_transition(&freqs, CPUFREQ_PRECHANGE);
-
-	set_cpus_allowed_ptr(current, &cpus_allowed);
-
-	/* setting the cpu frequency */
-	clk_set_rate(cpuclk, freq);
-
-	/* notifiers */
-	cpufreq_notify_transition(&freqs, CPUFREQ_POSTCHANGE);
-
-	pr_debug("cpufreq: set frequency %u kHz\n", freq);
-
-	return 0;
-}
-
-static int loongson2_cpufreq_cpu_init(struct cpufreq_policy *policy)
-{
-	int i;
-	unsigned long rate;
-	int ret;
-
-	if (!cpu_online(policy->cpu))
-		return -ENODEV;
-
-	cpuclk = clk_get(NULL, "cpu_clk");
-	if (IS_ERR(cpuclk)) {
-		printk(KERN_ERR "cpufreq: couldn't get CPU clk\n");
-		return PTR_ERR(cpuclk);
-	}
-
-	rate = cpu_clock_freq / 1000;
-	if (!rate) {
-		clk_put(cpuclk);
-		return -EINVAL;
-	}
-	ret = clk_set_rate(cpuclk, rate);
-	if (ret) {
-		clk_put(cpuclk);
-		return ret;
-	}
-
-	/* clock table init */
-	for (i = 2;
-	     (loongson2_clockmod_table[i].frequency != CPUFREQ_TABLE_END);
-	     i++)
-		loongson2_clockmod_table[i].frequency = (rate * i) / 8;
-
-	policy->cur = loongson2_cpufreq_get(policy->cpu);
-
-	cpufreq_frequency_table_get_attr(&loongson2_clockmod_table[0],
-					 policy->cpu);
-
-	return cpufreq_frequency_table_cpuinfo(policy,
-					    &loongson2_clockmod_table[0]);
-}
-
-static int loongson2_cpufreq_verify(struct cpufreq_policy *policy)
-{
-	return cpufreq_frequency_table_verify(policy,
-					      &loongson2_clockmod_table[0]);
-}
-
-static int loongson2_cpufreq_exit(struct cpufreq_policy *policy)
-{
-	clk_put(cpuclk);
-	return 0;
-}
-
-static struct freq_attr *loongson2_table_attr[] = {
-	&cpufreq_freq_attr_scaling_available_freqs,
-	NULL,
-};
-
-static struct cpufreq_driver loongson2_cpufreq_driver = {
-	.owner = THIS_MODULE,
-	.name = "loongson2",
-	.init = loongson2_cpufreq_cpu_init,
-	.verify = loongson2_cpufreq_verify,
-	.target = loongson2_cpufreq_target,
-	.get = loongson2_cpufreq_get,
-	.exit = loongson2_cpufreq_exit,
-	.attr = loongson2_table_attr,
-};
-
-static struct platform_device_id platform_device_ids[] = {
-	{
-		.name = "loongson2_cpufreq",
-	},
-	{}
-};
-
-MODULE_DEVICE_TABLE(platform, platform_device_ids);
-
-static struct platform_driver platform_driver = {
-	.driver = {
-		.name = "loongson2_cpufreq",
-		.owner = THIS_MODULE,
-	},
-	.id_table = platform_device_ids,
-};
-
-/*
- * This is the simple version of Loongson-2 wait, Maybe we need do this in
- * interrupt disabled context.
- */
-
-static DEFINE_SPINLOCK(loongson2_wait_lock);
-
-static void loongson2_cpu_wait(void)
-{
-	unsigned long flags;
-	u32 cpu_freq;
-
-	spin_lock_irqsave(&loongson2_wait_lock, flags);
-	cpu_freq = LOONGSON_CHIPCFG0;
-	LOONGSON_CHIPCFG0 &= ~0x7;	/* Put CPU into wait mode */
-	LOONGSON_CHIPCFG0 = cpu_freq;	/* Restore CPU state */
-	spin_unlock_irqrestore(&loongson2_wait_lock, flags);
-}
-
-static int __init cpufreq_init(void)
-{
-	int ret;
-
-	/* Register platform stuff */
-	ret = platform_driver_register(&platform_driver);
-	if (ret)
-		return ret;
-
-	pr_info("cpufreq: Loongson-2F CPU frequency driver.\n");
-
-	cpufreq_register_notifier(&loongson2_cpufreq_notifier_block,
-				  CPUFREQ_TRANSITION_NOTIFIER);
-
-	ret = cpufreq_register_driver(&loongson2_cpufreq_driver);
-
-	if (!ret && !nowait) {
-		saved_cpu_wait = cpu_wait;
-		cpu_wait = loongson2_cpu_wait;
-	}
-
-	return ret;
-}
-
-static void __exit cpufreq_exit(void)
-{
-	if (!nowait && saved_cpu_wait)
-		cpu_wait = saved_cpu_wait;
-	cpufreq_unregister_driver(&loongson2_cpufreq_driver);
-	cpufreq_unregister_notifier(&loongson2_cpufreq_notifier_block,
-				    CPUFREQ_TRANSITION_NOTIFIER);
-
-	platform_driver_unregister(&platform_driver);
-}
-
-module_init(cpufreq_init);
-module_exit(cpufreq_exit);
-
-module_param(nowait, uint, 0644);
-MODULE_PARM_DESC(nowait, "Disable Loongson-2F specific wait");
-
-MODULE_AUTHOR("Yanhua <yanh@lemote.com>");
-MODULE_DESCRIPTION("cpufreq driver for Loongson2F");
-MODULE_LICENSE("GPL");
diff --git a/arch/mips/kernel/early_printk.c b/arch/mips/kernel/early_printk.c
index 9e6440eaa455..505cb77d1280 100644
--- a/arch/mips/kernel/early_printk.c
+++ b/arch/mips/kernel/early_printk.c
@@ -7,7 +7,9 @@
  * Copyright (C) 2007 MIPS Technologies, Inc.
  *   written by Ralf Baechle (ralf@linux-mips.org)
  */
+#include <linux/kernel.h>
 #include <linux/console.h>
+#include <linux/printk.h>
 #include <linux/init.h>
 
 #include <asm/setup.h>
@@ -24,20 +26,18 @@ static void early_console_write(struct console *con, const char *s, unsigned n)
 	}
 }
 
-static struct console early_console = {
+static struct console early_console_prom = {
 	.name	= "early",
 	.write	= early_console_write,
 	.flags	= CON_PRINTBUFFER | CON_BOOT,
 	.index	= -1
 };
 
-static int early_console_initialized __initdata;
-
 void __init setup_early_printk(void)
 {
-	if (early_console_initialized)
+	if (early_console)
 		return;
-	early_console_initialized = 1;
+	early_console = &early_console_prom;
 
-	register_console(&early_console);
+	register_console(&early_console_prom);
 }
diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c
index db9655f08892..d1d576b765f5 100644
--- a/arch/mips/kernel/linux32.c
+++ b/arch/mips/kernel/linux32.c
@@ -119,99 +119,6 @@ SYSCALL_DEFINE6(32_pwrite, unsigned int, fd, const char __user *, buf,
 	return sys_pwrite64(fd, buf, count, merge_64(a4, a5));
 }
 
-#ifdef CONFIG_SYSVIPC
-
-SYSCALL_DEFINE6(32_ipc, u32, call, long, first, long, second, long, third,
-	unsigned long, ptr, unsigned long, fifth)
-{
-	int version, err;
-
-	version = call >> 16; /* hack for backward compatibility */
-	call &= 0xffff;
-
-	switch (call) {
-	case SEMOP:
-		/* struct sembuf is the same on 32 and 64bit :)) */
-		err = sys_semtimedop(first, compat_ptr(ptr), second, NULL);
-		break;
-	case SEMTIMEDOP:
-		err = compat_sys_semtimedop(first, compat_ptr(ptr), second,
-					    compat_ptr(fifth));
-		break;
-	case SEMGET:
-		err = sys_semget(first, second, third);
-		break;
-	case SEMCTL:
-		err = compat_sys_semctl(first, second, third, compat_ptr(ptr));
-		break;
-	case MSGSND:
-		err = compat_sys_msgsnd(first, second, third, compat_ptr(ptr));
-		break;
-	case MSGRCV:
-		err = compat_sys_msgrcv(first, second, fifth, third,
-					version, compat_ptr(ptr));
-		break;
-	case MSGGET:
-		err = sys_msgget((key_t) first, second);
-		break;
-	case MSGCTL:
-		err = compat_sys_msgctl(first, second, compat_ptr(ptr));
-		break;
-	case SHMAT:
-		err = compat_sys_shmat(first, second, third, version,
-				       compat_ptr(ptr));
-		break;
-	case SHMDT:
-		err = sys_shmdt(compat_ptr(ptr));
-		break;
-	case SHMGET:
-		err = sys_shmget(first, (unsigned)second, third);
-		break;
-	case SHMCTL:
-		err = compat_sys_shmctl(first, second, compat_ptr(ptr));
-		break;
-	default:
-		err = -ENOSYS;
-		break;
-	}
-
-	return err;
-}
-
-#else
-
-SYSCALL_DEFINE6(32_ipc, u32, call, int, first, int, second, int, third,
-	u32, ptr, u32, fifth)
-{
-	return -ENOSYS;
-}
-
-#endif /* CONFIG_SYSVIPC */
-
-#ifdef CONFIG_MIPS32_N32
-SYSCALL_DEFINE4(n32_semctl, int, semid, int, semnum, int, cmd, u32, arg)
-{
-	/* compat_sys_semctl expects a pointer to union semun */
-	u32 __user *uptr = compat_alloc_user_space(sizeof(u32));
-	if (put_user(arg, uptr))
-		return -EFAULT;
-	return compat_sys_semctl(semid, semnum, cmd, uptr);
-}
-
-SYSCALL_DEFINE4(n32_msgsnd, int, msqid, u32, msgp, unsigned int, msgsz,
-	int, msgflg)
-{
-	return compat_sys_msgsnd(msqid, msgsz, msgflg, compat_ptr(msgp));
-}
-
-SYSCALL_DEFINE5(n32_msgrcv, int, msqid, u32, msgp, size_t, msgsz,
-	int, msgtyp, int, msgflg)
-{
-	return compat_sys_msgrcv(msqid, msgsz, msgtyp, msgflg, IPC_64,
-				 compat_ptr(msgp));
-}
-#endif
-
 SYSCALL_DEFINE1(32_personality, unsigned long, personality)
 {
 	unsigned int p = personality & 0xffffffff;
@@ -226,26 +133,6 @@ SYSCALL_DEFINE1(32_personality, unsigned long, personality)
 	return ret;
 }
 
-SYSCALL_DEFINE4(32_sendfile, long, out_fd, long, in_fd,
-	compat_off_t __user *, offset, s32, count)
-{
-	mm_segment_t old_fs = get_fs();
-	int ret;
-	off_t of;
-
-	if (offset && get_user(of, offset))
-		return -EFAULT;
-
-	set_fs(KERNEL_DS);
-	ret = sys_sendfile(out_fd, in_fd, offset ? (off_t __user *)&of : NULL, count);
-	set_fs(old_fs);
-
-	if (offset && put_user(of, offset))
-		return -EFAULT;
-
-	return ret;
-}
-
 asmlinkage ssize_t sys32_readahead(int fd, u32 pad0, u64 a2, u64 a3,
 				   size_t count)
 {
@@ -279,12 +166,6 @@ asmlinkage long sys32_fallocate(int fd, int mode, unsigned offset_a2,
 			     merge_64(len_a4, len_a5));
 }
 
-asmlinkage long sys32_lookup_dcookie(u32 a0, u32 a1, char __user *buf,
-	size_t len)
-{
-	return sys_lookup_dcookie(merge_64(a0, a1), buf, len);
-}
-
 SYSCALL_DEFINE6(32_fanotify_mark, int, fanotify_fd, unsigned int, flags,
 		u64, a3, u64, a4, int, dfd, const char	__user *, pathname)
 {
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c
index 3be4405c2d14..cfc742d75b7f 100644
--- a/arch/mips/kernel/process.c
+++ b/arch/mips/kernel/process.c
@@ -41,44 +41,26 @@
 #include <asm/inst.h>
 #include <asm/stacktrace.h>
 
-/*
- * The idle thread. There's no useful work to be done, so just try to conserve
- * power and have a low exit latency (ie sit in a loop waiting for somebody to
- * say that they'd like to reschedule)
- */
-void __noreturn cpu_idle(void)
+#ifdef CONFIG_HOTPLUG_CPU
+void arch_cpu_idle_dead(void)
 {
-	int cpu;
-
-	/* CPU is going idle. */
-	cpu = smp_processor_id();
+	/* What the heck is this check doing ? */
+	if (!cpu_isset(smp_processor_id(), cpu_callin_map))
+		play_dead();
+}
+#endif
 
-	/* endless idle loop with no priority at all */
-	while (1) {
-		tick_nohz_idle_enter();
-		rcu_idle_enter();
-		while (!need_resched() && cpu_online(cpu)) {
+void arch_cpu_idle(void)
+{
 #ifdef CONFIG_MIPS_MT_SMTC
-			extern void smtc_idle_loop_hook(void);
+	extern void smtc_idle_loop_hook(void);
 
-			smtc_idle_loop_hook();
+	smtc_idle_loop_hook();
 #endif
-
-			if (cpu_wait) {
-				/* Don't trace irqs off for idle */
-				stop_critical_timings();
-				(*cpu_wait)();
-				start_critical_timings();
-			}
-		}
-#ifdef CONFIG_HOTPLUG_CPU
-		if (!cpu_online(cpu) && !cpu_isset(cpu, cpu_callin_map))
-			play_dead();
-#endif
-		rcu_idle_exit();
-		tick_nohz_idle_exit();
-		schedule_preempt_disabled();
-	}
+	if (cpu_wait)
+		(*cpu_wait)();
+	else
+		local_irq_enable();
 }
 
 asmlinkage void ret_from_fork(void);
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 693d60b0855f..edcb6594e7b5 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -143,7 +143,7 @@ EXPORT(sysn32_call_table)
 	PTR	compat_sys_setitimer
 	PTR	sys_alarm
 	PTR	sys_getpid
-	PTR	sys_32_sendfile
+	PTR	compat_sys_sendfile
 	PTR	sys_socket			/* 6040 */
 	PTR	sys_connect
 	PTR	sys_accept
@@ -168,11 +168,11 @@ EXPORT(sysn32_call_table)
 	PTR	sys_newuname
 	PTR	sys_semget
 	PTR	sys_semop
-	PTR	sys_n32_semctl
+	PTR	compat_sys_semctl
 	PTR	sys_shmdt			/* 6065 */
 	PTR	sys_msgget
-	PTR	sys_n32_msgsnd
-	PTR	sys_n32_msgrcv
+	PTR	compat_sys_msgsnd
+	PTR	compat_sys_msgrcv
 	PTR	compat_sys_msgctl
 	PTR	compat_sys_fcntl		/* 6070 */
 	PTR	sys_flock
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index af8887f779f1..103bfe570fe8 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -309,7 +309,7 @@ sys_call_table:
 	PTR	compat_sys_wait4
 	PTR	sys_swapoff			/* 4115 */
 	PTR	compat_sys_sysinfo
-	PTR	sys_32_ipc
+	PTR	compat_sys_ipc
 	PTR	sys_fsync
 	PTR	sys32_sigreturn
 	PTR	__sys_clone			/* 4120 */
@@ -399,7 +399,7 @@ sys_call_table:
 	PTR	sys_capget
 	PTR	sys_capset			/* 4205 */
 	PTR	compat_sys_sigaltstack
-	PTR	sys_32_sendfile
+	PTR	compat_sys_sendfile
 	PTR	sys_ni_syscall
 	PTR	sys_ni_syscall
 	PTR	sys_mips_mmap2			/* 4210 */
@@ -439,7 +439,7 @@ sys_call_table:
 	PTR	compat_sys_io_submit
 	PTR	sys_io_cancel			/* 4245 */
 	PTR	sys_exit_group
-	PTR	sys32_lookup_dcookie
+	PTR	compat_sys_lookup_dcookie
 	PTR	sys_epoll_create
 	PTR	sys_epoll_ctl
 	PTR	sys_epoll_wait			/* 4250 */
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index 66bf4e22d9b9..aee04af213c5 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -139,7 +139,7 @@ asmlinkage __cpuinit void start_secondary(void)
 	WARN_ON_ONCE(!irqs_disabled());
 	mp_ops->smp_finish();
 
-	cpu_idle();
+	cpu_startup_entry(CPUHP_ONLINE);
 }
 
 /*
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index c3abb88170fc..25225515451f 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -206,19 +206,6 @@ void show_stack(struct task_struct *task, unsigned long *sp)
 	show_stacktrace(task, &regs);
 }
 
-/*
- * The architecture-independent dump_stack generator
- */
-void dump_stack(void)
-{
-	struct pt_regs regs;
-
-	prepare_frametrace(&regs);
-	show_backtrace(current, &regs);
-}
-
-EXPORT_SYMBOL(dump_stack);
-
 static void show_code(unsigned int __user *pc)
 {
 	long i;
@@ -244,7 +231,7 @@ static void __show_regs(const struct pt_regs *regs)
 	unsigned int cause = regs->cp0_cause;
 	int i;
 
-	printk("Cpu %d\n", smp_processor_id());
+	show_regs_print_info(KERN_DEFAULT);
 
 	/*
 	 * Saved main processor registers
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 67929251286c..3d0346dbccf4 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -77,10 +77,9 @@ EXPORT_SYMBOL_GPL(empty_zero_page);
 /*
  * Not static inline because used by IP27 special magic initialization code
  */
-unsigned long setup_zero_pages(void)
+void setup_zero_pages(void)
 {
-	unsigned int order;
-	unsigned long size;
+	unsigned int order, i;
 	struct page *page;
 
 	if (cpu_has_vce)
@@ -94,15 +93,10 @@ unsigned long setup_zero_pages(void)
 
 	page = virt_to_page((void *)empty_zero_page);
 	split_page(page, order);
-	while (page < virt_to_page((void *)(empty_zero_page + (PAGE_SIZE << order)))) {
-		SetPageReserved(page);
-		page++;
-	}
-
-	size = PAGE_SIZE << order;
-	zero_page_mask = (size - 1) & PAGE_MASK;
+	for (i = 0; i < (1 << order); i++, page++)
+		mark_page_reserved(page);
 
-	return 1UL << order;
+	zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK;
 }
 
 #ifdef CONFIG_MIPS_MT_SMTC
@@ -380,7 +374,7 @@ void __init mem_init(void)
 	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 
 	totalram_pages += free_all_bootmem();
-	totalram_pages -= setup_zero_pages();	/* Setup zeroed pages.	*/
+	setup_zero_pages();	/* Setup zeroed pages.  */
 
 	reservedpages = ram = 0;
 	for (tmp = 0; tmp < max_low_pfn; tmp++)
@@ -399,12 +393,8 @@ void __init mem_init(void)
 			SetPageReserved(page);
 			continue;
 		}
-		ClearPageReserved(page);
-		init_page_count(page);
-		__free_page(page);
-		totalhigh_pages++;
+		free_highmem_page(page);
 	}
-	totalram_pages += totalhigh_pages;
 	num_physpages += totalhigh_pages;
 #endif
 
@@ -440,11 +430,8 @@ void free_init_pages(const char *what, unsigned long begin, unsigned long end)
 		struct page *page = pfn_to_page(pfn);
 		void *addr = phys_to_virt(PFN_PHYS(pfn));
 
-		ClearPageReserved(page);
-		init_page_count(page);
 		memset(addr, POISON_FREE_INITMEM, PAGE_SIZE);
-		__free_page(page);
-		totalram_pages++;
+		free_reserved_page(page);
 	}
 	printk(KERN_INFO "Freeing %s: %ldk freed\n", what, (end - begin) >> 10);
 }
@@ -452,18 +439,14 @@ void free_init_pages(const char *what, unsigned long begin, unsigned long end)
 #ifdef CONFIG_BLK_DEV_INITRD
 void free_initrd_mem(unsigned long start, unsigned long end)
 {
-	free_init_pages("initrd memory",
-			virt_to_phys((void *)start),
-			virt_to_phys((void *)end));
+	free_reserved_area(start, end, POISON_FREE_INITMEM, "initrd");
 }
 #endif
 
 void __init_refok free_initmem(void)
 {
 	prom_free_prom_memory();
-	free_init_pages("unused kernel memory",
-			__pa_symbol(&__init_begin),
-			__pa_symbol(&__init_end));
+	free_initmem_default(POISON_FREE_INITMEM);
 }
 
 #ifndef CONFIG_MIPS_PGD_C0_CONTEXT
diff --git a/arch/mips/pci/pci.c b/arch/mips/pci/pci.c
index 0872f12f268d..594e60d6a43b 100644
--- a/arch/mips/pci/pci.c
+++ b/arch/mips/pci/pci.c
@@ -115,7 +115,6 @@ static void pcibios_scanbus(struct pci_controller *hose)
 			pci_bus_assign_resources(bus);
 			pci_enable_bridges(bus);
 		}
-		bus->dev.of_node = hose->of_node;
 	}
 }
 
@@ -169,6 +168,13 @@ void pci_load_of_ranges(struct pci_controller *hose, struct device_node *node)
 		}
 	}
 }
+
+struct device_node *pcibios_get_phb_of_node(struct pci_bus *bus)
+{
+	struct pci_controller *hose = bus->sysdata;
+
+	return of_node_get(hose->of_node);
+}
 #endif
 
 static DEFINE_MUTEX(pci_scan_mutex);
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index 3505d08ff2fd..5f2bddb1860e 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -457,7 +457,7 @@ void __init prom_free_prom_memory(void)
 	/* We got nothing to free here ...  */
 }
 
-extern unsigned long setup_zero_pages(void);
+extern void setup_zero_pages(void);
 
 void __init paging_init(void)
 {
@@ -492,7 +492,7 @@ void __init mem_init(void)
 		totalram_pages += free_all_bootmem_node(NODE_DATA(node));
 	}
 
-	totalram_pages -= setup_zero_pages();	/* This comes from node 0 */
+	setup_zero_pages();	/* This comes from node 0 */
 
 	codesize =  (unsigned long) &_etext - (unsigned long) &_text;
 	datasize =  (unsigned long) &_edata - (unsigned long) &_etext;