MIPS: TXx9: Default machine_restart using watchdog reset

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / cpu / cyrix.c

diff --git a/arch/x86/kernel/cpu/cyrix.c b/arch/x86/kernel/cpu/cyrix.c
index 3fd7a67bb06aa7db7f9350e2a34203cb94c3240a..898a5a2002ed64e391d45a24d5e6a7103d6397a9 100644 (file)
--- a/arch/x86/kernel/cpu/cyrix.c
+++ b/arch/x86/kernel/cpu/cyrix.c
@@ -15,13 +15,11 @@
 /*
  * Read NSC/Cyrix DEVID registers (DIR) to get more detailed info. about the CPU
  */
-static void __cpuinit do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
+static void __cpuinit __do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
 {
        unsigned char ccr2, ccr3;
-       unsigned long flags;
 
        /* we test for DEVID by checking whether CCR3 is writable */
-       local_irq_save(flags);
        ccr3 = getCx86(CX86_CCR3);
        setCx86(CX86_CCR3, ccr3 ^ 0x80);
        getCx86(0xc0);   /* dummy to change bus */
@@ -44,9 +42,16 @@ static void __cpuinit do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
                *dir0 = getCx86(CX86_DIR0);
                *dir1 = getCx86(CX86_DIR1);
        }
-       local_irq_restore(flags);
 }
 
+static void __cpuinit do_cyrix_devid(unsigned char *dir0, unsigned char *dir1)
+{
+       unsigned long flags;
+
+       local_irq_save(flags);
+       __do_cyrix_devid(dir0, dir1);
+       local_irq_restore(flags);
+}
 /*
  * Cx86_dir0_msb is a HACK needed by check_cx686_cpuid/slop in bugs.h in
  * order to identify the Cyrix CPU model after we're out of setup.c
@@ -134,23 +139,6 @@ static void __cpuinit set_cx86_memwb(void)
        setCx86(CX86_CCR2, getCx86(CX86_CCR2) | 0x14);
 }
 
-static void __cpuinit set_cx86_inc(void)
-{
-       unsigned char ccr3;
-
-       printk(KERN_INFO "Enable Incrementor on Cyrix/NSC processor.\n");
-
-       ccr3 = getCx86(CX86_CCR3);
-       setCx86(CX86_CCR3, (ccr3 & 0x0f) | 0x10); /* enable MAPEN */
-       /* PCR1 -- Performance Control */
-       /* Incrementor on, whatever that is */
-       setCx86(CX86_PCR1, getCx86(CX86_PCR1) | 0x02);
-       /* PCR0 -- Performance Control */
-       /* Incrementor Margin 10 */
-       setCx86(CX86_PCR0, getCx86(CX86_PCR0) | 0x04);
-       setCx86(CX86_CCR3, ccr3);       /* disable MAPEN */
-}
-
 /*
  *     Configure later MediaGX and/or Geode processor.
  */
@@ -174,11 +162,28 @@ static void __cpuinit geode_configure(void)
 
        set_cx86_memwb();
        set_cx86_reorder();
-       set_cx86_inc();
 
        local_irq_restore(flags);
 }
 
+static void __cpuinit early_init_cyrix(struct cpuinfo_x86 *c)
+{
+       unsigned char dir0, dir0_msn, dir1 = 0;
+
+       __do_cyrix_devid(&dir0, &dir1);
+       dir0_msn = dir0 >> 4; /* identifies CPU "family"   */
+
+       switch (dir0_msn) {
+       case 3: /* 6x86/6x86L */
+               /* Emulate MTRRs using Cyrix's ARRs. */
+               set_cpu_cap(c, X86_FEATURE_CYRIX_ARR);
+               break;
+       case 5: /* 6x86MX/M II */
+               /* Emulate MTRRs using Cyrix's ARRs. */
+               set_cpu_cap(c, X86_FEATURE_CYRIX_ARR);
+               break;
+       }
+}
 
 static void __cpuinit init_cyrix(struct cpuinfo_x86 *c)
 {
@@ -434,6 +439,7 @@ static void __cpuinit cyrix_identify(struct cpuinfo_x86 *c)
 static struct cpu_dev cyrix_cpu_dev __cpuinitdata = {
        .c_vendor       = "Cyrix",
        .c_ident        = { "CyrixInstead" },
+       .c_early_init   = early_init_cyrix,
        .c_init         = init_cyrix,
        .c_identify     = cyrix_identify,
 };