10 files changed, 18 insertions, 54 deletions

diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a1a088b2d54d..c2917906caaa 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -132,7 +132,6 @@ config BCM63XX
         select IRQ_CPU
         select SYS_HAS_CPU_MIPS32_R1
         select SYS_HAS_CPU_BMIPS4350 if !BCM63XX_CPU_6338 && !BCM63XX_CPU_6345 && !BCM63XX_CPU_6348
-        select NR_CPUS_DEFAULT_2
         select SYS_SUPPORTS_32BIT_KERNEL
         select SYS_SUPPORTS_BIG_ENDIAN
         select SYS_HAS_EARLY_PRINTK
@@ -612,7 +611,6 @@ config SIBYTE_SWARM
         select BOOT_ELF32
         select DMA_COHERENT
         select HAVE_PATA_PLATFORM
-        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -626,7 +624,6 @@ config SIBYTE_LITTLESUR
         select BOOT_ELF32
         select DMA_COHERENT
         select HAVE_PATA_PLATFORM
-        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -638,7 +635,6 @@ config SIBYTE_SENTOSA
         bool "Sibyte BCM91250E-Sentosa"
         select BOOT_ELF32
         select DMA_COHERENT
-        select NR_CPUS_DEFAULT_2
         select SIBYTE_SB1250
         select SWAP_IO_SPACE
         select SYS_HAS_CPU_SB1
@@ -1866,7 +1862,6 @@ config MIPS_MT_SMP
         select CPU_MIPSR2_IRQ_VI
         select CPU_MIPSR2_IRQ_EI
         select MIPS_MT
-        select NR_CPUS_DEFAULT_2
         select SMP
         select SYS_SUPPORTS_SCHED_SMT if SMP
         select SYS_SUPPORTS_SMP
@@ -2177,12 +2172,6 @@ config SYS_SUPPORTS_MIPS_CMP
 config SYS_SUPPORTS_SMP
         bool
 
-config NR_CPUS_DEFAULT_1
-        bool
-
-config NR_CPUS_DEFAULT_2
-        bool
-
 config NR_CPUS_DEFAULT_4
         bool
 
@@ -2200,10 +2189,8 @@ config NR_CPUS_DEFAULT_64
 
 config NR_CPUS
         int "Maximum number of CPUs (2-64)"
-        range 1 64 if NR_CPUS_DEFAULT_1
+        range 2 64
         depends on SMP
-        default "1" if NR_CPUS_DEFAULT_1
-        default "2" if NR_CPUS_DEFAULT_2
         default "4" if NR_CPUS_DEFAULT_4
         default "8" if NR_CPUS_DEFAULT_8
         default "16" if NR_CPUS_DEFAULT_16
diff --git a/arch/mips/kernel/mcount.S b/arch/mips/kernel/mcount.S
index a03e93c4a946..539b6294b613 100644
--- a/arch/mips/kernel/mcount.S
+++ b/arch/mips/kernel/mcount.S
@@ -83,7 +83,7 @@ _mcount:
         PTR_S   MCOUNT_RA_ADDRESS_REG, PT_R12(sp)
 #endif
 
-        move    a0, ra          /* arg1: self return address */
+        PTR_SUBU a0, ra, 8      /* arg1: self address */
         .globl ftrace_call
 ftrace_call:
         nop     /* a placeholder for the call to a real tracing function */
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c
index 9d686bf97b0e..364d26ae4215 100644
--- a/arch/mips/kernel/time.c
+++ b/arch/mips/kernel/time.c
@@ -121,6 +121,14 @@ void __init time_init(void)
 {
         plat_time_init();
 
-        if (!mips_clockevent_init() || !cpu_has_mfc0_count_bug())
+        /*
+         * The use of the R4k timer as a clock event takes precedence;
+         * if reading the Count register might interfere with the timer
+         * interrupt, then we don't use the timer as a clock source.
+         * We may still use the timer as a clock source though if the
+         * timer interrupt isn't reliable; the interference doesn't
+         * matter then, because we don't use the interrupt.
+         */
+        if (mips_clockevent_init() != 0 || !cpu_has_mfc0_count_bug())
                 init_mips_clocksource();
 }
diff --git a/arch/mips/loongson/common/Makefile b/arch/mips/loongson/common/Makefile
index 4c57b3e5743f..9e4484ccbb03 100644
--- a/arch/mips/loongson/common/Makefile
+++ b/arch/mips/loongson/common/Makefile
@@ -3,8 +3,9 @@
 #
 
 obj-y += setup.o init.o cmdline.o env.o time.o reset.o irq.o \
-    pci.o bonito-irq.o mem.o machtype.o platform.o
+    bonito-irq.o mem.o machtype.o platform.o
 obj-$(CONFIG_GPIOLIB) += gpio.o
+obj-$(CONFIG_PCI) += pci.o
 
 #
 # Serial port support
diff --git a/arch/mips/mm/gup.c b/arch/mips/mm/gup.c
index d4ea5c9c4a93..06ce17c2a905 100644
--- a/arch/mips/mm/gup.c
+++ b/arch/mips/mm/gup.c
@@ -12,6 +12,7 @@
 #include <linux/swap.h>
 #include <linux/hugetlb.h>
 
+#include <asm/cpu-features.h>
 #include <asm/pgtable.h>
 
 static inline pte_t gup_get_pte(pte_t *ptep)
@@ -273,7 +274,7 @@ int get_user_pages_fast(unsigned long start, int nr_pages, int write,
         len = (unsigned long) nr_pages << PAGE_SHIFT;
 
         end = start + len;
-        if (end < start)
+        if (end < start || cpu_has_dc_aliases)
                 goto slow_irqon;
 
         /* XXX: batch / limit 'nr' */
diff --git a/arch/mips/powertv/Kconfig b/arch/mips/powertv/Kconfig
index 1a1b03ea6398..dd91fbacbcba 100644
--- a/arch/mips/powertv/Kconfig
+++ b/arch/mips/powertv/Kconfig
@@ -1,14 +1,7 @@
-config BOOTLOADER_DRIVER
-        bool "PowerTV Bootloader Driver Support"
-        default n
-        depends on POWERTV
-        help
-          Use this option if you want to load bootloader driver.
-
 config BOOTLOADER_FAMILY
         string "POWERTV Bootloader Family string"
         default "85"
-        depends on POWERTV && !BOOTLOADER_DRIVER
+        depends on POWERTV
         help
           This value should be specified when the bootloader driver is disabled
           and must be exactly two characters long. Families supported are:
diff --git a/arch/mips/powertv/asic/asic_devices.c b/arch/mips/powertv/asic/asic_devices.c
index 0238af1ba503..8380605d597d 100644
--- a/arch/mips/powertv/asic/asic_devices.c
+++ b/arch/mips/powertv/asic/asic_devices.c
@@ -147,20 +147,10 @@ static __init noinline void platform_set_family(void)
         if (check_forcefamily(forced_family) == 0)
                 bootldr_family = BOOTLDRFAMILY(forced_family[0],
                         forced_family[1]);
-        else {
-
-#ifdef CONFIG_BOOTLOADER_DRIVER
-                bootldr_family = (unsigned short) kbldr_GetSWFamily();
-#else
-#if defined(CONFIG_BOOTLOADER_FAMILY)
+        else
                 bootldr_family = (unsigned short) BOOTLDRFAMILY(
                         CONFIG_BOOTLOADER_FAMILY[0],
                         CONFIG_BOOTLOADER_FAMILY[1]);
-#else
-#error "Unknown Bootloader Family"
-#endif
-#endif
-        }
 
         pr_info("Bootloader Family = 0x%04X\n", bootldr_family);
 
diff --git a/arch/mips/powertv/init.c b/arch/mips/powertv/init.c
index a01baff52cae..498926377e51 100644
--- a/arch/mips/powertv/init.c
+++ b/arch/mips/powertv/init.c
@@ -87,8 +87,4 @@ void __init prom_init(void)
 
         configure_platform();
         prom_meminit();
-
-#ifndef CONFIG_BOOTLOADER_DRIVER
-        pr_info("\nBootloader driver isn't loaded...\n");
-#endif
 }
diff --git a/arch/mips/powertv/reset.c b/arch/mips/powertv/reset.c
index 0007652cb774..11c32fbf2784 100644
--- a/arch/mips/powertv/reset.c
+++ b/arch/mips/powertv/reset.c
@@ -21,24 +21,12 @@
 #include <linux/io.h>
 #include <asm/reboot.h>                 /* Not included by linux/reboot.h */
 
-#ifdef CONFIG_BOOTLOADER_DRIVER
-#include <asm/mach-powertv/kbldr.h>
-#endif
-
 #include <asm/mach-powertv/asic_regs.h>
 #include "reset.h"
 
 static void mips_machine_restart(char *command)
 {
-#ifdef CONFIG_BOOTLOADER_DRIVER
-        /*
-         * Call the bootloader's reset function to ensure
-         * that persistent data is flushed before hard reset
-         */
-        kbldr_SetCauseAndReset();
-#else
         writel(0x1, asic_reg_addr(watchdog));
-#endif
 }
 
 void mips_reboot_setup(void)
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 681e7f86c080..2b0b83c171e0 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -350,7 +350,7 @@ static void __init select_board(void)
         }
 
         /* select "default" board */
-#ifdef CONFIG_CPU_TX39XX
+#ifdef CONFIG_TOSHIBA_JMR3927
         txx9_board_vec = &jmr3927_vec;
 #endif
 #ifdef CONFIG_CPU_TX49XX