5 files changed, 61 insertions, 56 deletions

diff --git a/arch/mips/dec/time.c b/arch/mips/dec/time.c
index ea57f39e6736..56ebc7f2bede 100644
--- a/arch/mips/dec/time.c
+++ b/arch/mips/dec/time.c
@@ -126,12 +126,13 @@ int rtc_mips_set_mmss(unsigned long nowtime)
 void __init plat_time_init(void)
 {
         u32 start, end;
-        int i = HZ / 10;
+        int i = HZ / 8;
 
         /* Set up the rate of periodic DS1287 interrupts. */
         ds1287_set_base_clock(HZ);
 
         if (cpu_has_counter) {
+                ds1287_timer_state();
                 while (!ds1287_timer_state())
                         ;
 
@@ -143,7 +144,7 @@ void __init plat_time_init(void)
 
                 end = read_c0_count();
 
-                mips_hpt_frequency = (end - start) * 10;
+                mips_hpt_frequency = (end - start) * 8;
                 printk(KERN_INFO "MIPS counter frequency %dHz\n",
                         mips_hpt_frequency);
         } else if (IOASIC)
diff --git a/arch/mips/kernel/csrc-ioasic.c b/arch/mips/kernel/csrc-ioasic.c
index 0654bff9b69c..87e88feb4a25 100644
--- a/arch/mips/kernel/csrc-ioasic.c
+++ b/arch/mips/kernel/csrc-ioasic.c
@@ -41,9 +41,9 @@ void __init dec_ioasic_clocksource_init(void)
 {
         unsigned int freq;
         u32 start, end;
-        int i = HZ / 10;
-
+        int i = HZ / 8;
 
+        ds1287_timer_state();
         while (!ds1287_timer_state())
                 ;
 
@@ -55,7 +55,7 @@ void __init dec_ioasic_clocksource_init(void)
 
         end = dec_ioasic_hpt_read(&clocksource_dec);
 
-        freq = (end - start) * 10;
+        freq = (end - start) * 8;
         printk(KERN_INFO "I/O ASIC clock frequency %dHz\n", freq);
 
         clocksource_dec.rating = 200 + freq / 10000000;
diff --git a/arch/mips/kernel/relocate_kernel.S b/arch/mips/kernel/relocate_kernel.S
index 43d2d78d3287..74bab9ddd0e1 100644
--- a/arch/mips/kernel/relocate_kernel.S
+++ b/arch/mips/kernel/relocate_kernel.S
@@ -26,6 +26,12 @@ process_entry:
         PTR_L           s2, (s0)
         PTR_ADD         s0, s0, SZREG
 
+        /*
+         * In case of a kdump/crash kernel, the indirection page is not
+         * populated as the kernel is directly copied to a reserved location
+         */
+        beqz            s2, done
+
         /* destination page */
         and             s3, s2, 0x1
         beq             s3, zero, 1f
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index c7f90519e58c..c538d6e01b7b 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -552,6 +552,52 @@ static void __init arch_mem_addpart(phys_t mem, phys_t end, int type)
         add_memory_region(mem, size, type);
 }
 
+#ifdef CONFIG_KEXEC
+static inline unsigned long long get_total_mem(void)
+{
+        unsigned long long total;
+
+        total = max_pfn - min_low_pfn;
+        return total << PAGE_SHIFT;
+}
+
+static void __init mips_parse_crashkernel(void)
+{
+        unsigned long long total_mem;
+        unsigned long long crash_size, crash_base;
+        int ret;
+
+        total_mem = get_total_mem();
+        ret = parse_crashkernel(boot_command_line, total_mem,
+                                &crash_size, &crash_base);
+        if (ret != 0 || crash_size <= 0)
+                return;
+
+        crashk_res.start = crash_base;
+        crashk_res.end   = crash_base + crash_size - 1;
+}
+
+static void __init request_crashkernel(struct resource *res)
+{
+        int ret;
+
+        ret = request_resource(res, &crashk_res);
+        if (!ret)
+                pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n",
+                        (unsigned long)((crashk_res.end -
+                                         crashk_res.start + 1) >> 20),
+                        (unsigned long)(crashk_res.start  >> 20));
+}
+#else /* !defined(CONFIG_KEXEC)         */
+static void __init mips_parse_crashkernel(void)
+{
+}
+
+static void __init request_crashkernel(struct resource *res)
+{
+}
+#endif /* !defined(CONFIG_KEXEC)  */
+
 static void __init arch_mem_init(char **cmdline_p)
 {
         extern void plat_mem_setup(void);
@@ -608,6 +654,8 @@ static void __init arch_mem_init(char **cmdline_p)
                                 BOOTMEM_DEFAULT);
         }
 #endif
+
+        mips_parse_crashkernel();
 #ifdef CONFIG_KEXEC
         if (crashk_res.start != crashk_res.end)
                 reserve_bootmem(crashk_res.start,
@@ -620,52 +668,6 @@ static void __init arch_mem_init(char **cmdline_p)
         paging_init();
 }
 
-#ifdef CONFIG_KEXEC
-static inline unsigned long long get_total_mem(void)
-{
-        unsigned long long total;
-
-        total = max_pfn - min_low_pfn;
-        return total << PAGE_SHIFT;
-}
-
-static void __init mips_parse_crashkernel(void)
-{
-        unsigned long long total_mem;
-        unsigned long long crash_size, crash_base;
-        int ret;
-
-        total_mem = get_total_mem();
-        ret = parse_crashkernel(boot_command_line, total_mem,
-                                &crash_size, &crash_base);
-        if (ret != 0 || crash_size <= 0)
-                return;
-
-        crashk_res.start = crash_base;
-        crashk_res.end   = crash_base + crash_size - 1;
-}
-
-static void __init request_crashkernel(struct resource *res)
-{
-        int ret;
-
-        ret = request_resource(res, &crashk_res);
-        if (!ret)
-                pr_info("Reserving %ldMB of memory at %ldMB for crashkernel\n",
-                        (unsigned long)((crashk_res.end -
-                                crashk_res.start + 1) >> 20),
-                        (unsigned long)(crashk_res.start  >> 20));
-}
-#else /* !defined(CONFIG_KEXEC)  */
-static void __init mips_parse_crashkernel(void)
-{
-}
-
-static void __init request_crashkernel(struct resource *res)
-{
-}
-#endif /* !defined(CONFIG_KEXEC)  */
-
 static void __init resource_init(void)
 {
         int i;
@@ -678,11 +680,6 @@ static void __init resource_init(void)
         data_resource.start = __pa_symbol(&_etext);
         data_resource.end = __pa_symbol(&_edata) - 1;
 
-        /*
-         * Request address space for all standard RAM.
-         */
-        mips_parse_crashkernel();
-
         for (i = 0; i < boot_mem_map.nr_map; i++) {
                 struct resource *res;
                 unsigned long start, end;
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 4e73f10a7519..e205ef598e97 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -254,6 +254,7 @@ void copy_from_user_page(struct vm_area_struct *vma,
                         SetPageDcacheDirty(page);
         }
 }
+EXPORT_SYMBOL_GPL(copy_from_user_page);
 
 void __init fixrange_init(unsigned long start, unsigned long end,
         pgd_t *pgd_base)