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Changes to support 440BX

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This commit is contained in:
Ronald G. Minnich 2001-02-08 16:17:38 +00:00
commit af5eaf5b29
8 changed files with 50 additions and 10 deletions
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2
src/cpu/p5/cpuid.c
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@ -35,6 +35,7 @@ int intel_mtrr_check(void)
DBG("\n");
intel_post(0x93);
return ((int) low);
}
#endif
@ -216,4 +217,5 @@ void intel_display_cpuid(void)
}
DBG("\n");
intel_post(0x92);
}

7
src/cpu/p6/mtrr.c
View file

@ -41,6 +41,8 @@ static unsigned int mtrr_msr[] = {
MTRRfix4K_E0000_MSR, MTRRfix4K_E8000_MSR, MTRRfix4K_F0000_MSR, MTRRfix4K_F8000_MSR,
};
#ifndef HAVE_MTRR_TABLE
static unsigned char fixed_mtrr_values[][4] = {
/* MTRRfix64K_00000_MSR, defines memory range from 0KB to 512 KB, each byte cover 64KB area */
{MTRR_TYPE_WRBACK, MTRR_TYPE_WRBACK, MTRR_TYPE_WRBACK, MTRR_TYPE_WRBACK},
@ -87,6 +89,10 @@ static unsigned char fixed_mtrr_values[][4] = {
{MTRR_TYPE_WRTHROUGH, MTRR_TYPE_WRTHROUGH, MTRR_TYPE_WRTHROUGH, MTRR_TYPE_WRTHROUGH},
};
#else
extern unsigned char fixed_mtrr_values[][4];
#endif
void
intel_enable_fixed_mtrr()
{
@ -238,6 +244,7 @@ void intel_set_mtrr(unsigned long rambase, unsigned long ramsizeK)
#else /* ENABLE_FIXED_AND_VARIABLE_MTRRS */
void intel_set_mtrr(unsigned long rambase, unsigned long ramsizeK)
{
DBG("\n");
intel_set_var_mtrr(0, 0, ramsizeK * 1024, MTRR_TYPE_WRBACK);
intel_enable_var_mtrr();
}