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Turn off microsparc II compatibility bit in Fujitsu turbosparc processors.

This commit is contained in:
pk 1997-07-06 22:23:37 +00:00
parent 3040e9247c
commit f02db5d4f6
2 changed files with 16 additions and 4 deletions
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9
sys/arch/sparc/sparc/cache.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: cache.c,v 1.30 1997/07/06 21:18:28 pk Exp $ */
/* $NetBSD: cache.c,v 1.31 1997/07/06 22:23:38 pk Exp $ */
/*
* Copyright (c) 1996
@ -252,7 +252,7 @@ cypress_cache_enable()
void
turbosparc_cache_enable()
{
int pcr;
int pcr, pcf;
cache_alias_dist = max(
CACHEINFO.ic_totalsize / CACHEINFO.ic_associativity,
@ -262,6 +262,11 @@ turbosparc_cache_enable()
pcr = lda(SRMMU_PCR, ASI_SRMMU);
pcr |= (TURBOSPARC_PCR_ICE | TURBOSPARC_PCR_DCE);
sta(SRMMU_PCR, ASI_SRMMU, pcr);
pcf = lda(SRMMU_PCFG, ASI_SRMMU);
if (pcf & TURBOSPARC_PCFG_SNP)
printf("DVMA coherent ");
CACHEINFO.c_enabled = 1;
printf("cache enabled\n");
}

11
sys/arch/sparc/sparc/cpu.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: cpu.c,v 1.45 1997/07/06 21:18:27 pk Exp $ */
/* $NetBSD: cpu.c,v 1.46 1997/07/06 22:23:37 pk Exp $ */
/*
* Copyright (c) 1996
@ -879,7 +879,14 @@ void
turbosparc_hotfix(sc)
struct cpu_softc *sc;
{
/* Turn off uS2 emulation bit */
int pcf;
pcf = lda(SRMMU_PCFG, ASI_SRMMU);
if (pcf & TURBOSPARC_PCFG_US2) {
/* Turn off uS2 emulation bit */
pcf &= ~TURBOSPARC_PCFG_US2;
sta(SRMMU_PCFG, ASI_SRMMU, pcf);
}
}
#endif /* SUN4M */