1 files changed, 48 insertions, 32 deletions

diff --git a/arch/sh/kernel/cpu/init.c b/arch/sh/kernel/cpu/init.c
index 89b4b76c0d76..2e23422280a7 100644
--- a/arch/sh/kernel/cpu/init.c
+++ b/arch/sh/kernel/cpu/init.c
@@ -28,18 +28,30 @@
 #include <asm/ubc.h>
 #endif
 
+#ifdef CONFIG_SH_FPU
+#define cpu_has_fpu     1
+#else
+#define cpu_has_fpu     0
+#endif
+
+#ifdef CONFIG_SH_DSP
+#define cpu_has_dsp     1
+#else
+#define cpu_has_dsp     0
+#endif
+
 /*
  * Generic wrapper for command line arguments to disable on-chip
  * peripherals (nofpu, nodsp, and so forth).
  */
-#define onchip_setup(x)                         \
-static int x##_disabled __initdata = 0;         \
-                                                \
-static int __init x##_setup(char *opts)         \
-{                                               \
-        x##_disabled = 1;                       \
-        return 1;                               \
-}                                               \
+#define onchip_setup(x)                                 \
+static int x##_disabled __initdata = !cpu_has_##x;      \
+                                                        \
+static int __init x##_setup(char *opts)                 \
+{                                                       \
+        x##_disabled = 1;                               \
+        return 1;                                       \
+}                                                       \
 __setup("no" __stringify(x), x##_setup);
 
 onchip_setup(fpu);
@@ -207,6 +219,18 @@ static void detect_cache_shape(void)
                 l2_cache_shape = -1; /* No S-cache */
 }
 
+static void __init fpu_init(void)
+{
+        /* Disable the FPU */
+        if (fpu_disabled && (current_cpu_data.flags & CPU_HAS_FPU)) {
+                printk("FPU Disabled\n");
+                current_cpu_data.flags &= ~CPU_HAS_FPU;
+        }
+
+        disable_fpu();
+        clear_used_math();
+}
+
 #ifdef CONFIG_SH_DSP
 static void __init release_dsp(void)
 {
@@ -244,9 +268,17 @@ static void __init dsp_init(void)
         if (sr & SR_DSP)
                 current_cpu_data.flags |= CPU_HAS_DSP;
 
+        /* Disable the DSP */
+        if (dsp_disabled && (current_cpu_data.flags & CPU_HAS_DSP)) {
+                printk("DSP Disabled\n");
+                current_cpu_data.flags &= ~CPU_HAS_DSP;
+        }
+
         /* Now that we've determined the DSP status, clear the DSP bit. */
         release_dsp();
 }
+#else
+static inline void __init dsp_init(void) { }
 #endif /* CONFIG_SH_DSP */
 
 /**
@@ -302,18 +334,8 @@ asmlinkage void __init sh_cpu_init(void)
                 detect_cache_shape();
         }
 
-        /* Disable the FPU */
-        if (fpu_disabled) {
-                printk("FPU Disabled\n");
-                current_cpu_data.flags &= ~CPU_HAS_FPU;
-        }
-
-        /* FPU initialization */
-        disable_fpu();
-        if ((current_cpu_data.flags & CPU_HAS_FPU)) {
-                current_thread_info()->status &= ~TS_USEDFPU;
-                clear_used_math();
-        }
+        fpu_init();
+        dsp_init();
 
         /*
          * Initialize the per-CPU ASID cache very early, since the
@@ -321,18 +343,12 @@ asmlinkage void __init sh_cpu_init(void)
          */
         current_cpu_data.asid_cache = NO_CONTEXT;
 
-#ifdef CONFIG_SH_DSP
-        /* Probe for DSP */
-        dsp_init();
-
-        /* Disable the DSP */
-        if (dsp_disabled) {
-                printk("DSP Disabled\n");
-                current_cpu_data.flags &= ~CPU_HAS_DSP;
-                release_dsp();
-        }
-#endif
-
         speculative_execution_init();
         expmask_init();
+
+        /*
+         * Boot processor to setup the FP and extended state context info.
+         */
+        if (raw_smp_processor_id() == 0)
+                init_thread_xstate();
 }