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Modify only K0 bits and save other bits. (HPCMIPS_L1CACHE_DISABLE)

This commit is contained in:
takemura 2002-01-04 09:26:39 +00:00
parent 2776bd066f
commit eef721771a
1 changed files with 5 additions and 2 deletions
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7
sys/arch/mips/mips/locore.S
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@ -1,4 +1,4 @@
/* $NetBSD: locore.S,v 1.129 2001/12/08 11:15:43 manu Exp $ */
/* $NetBSD: locore.S,v 1.130 2002/01/04 09:26:39 takemura Exp $ */
/*
* Copyright (c) 1992, 1993
@ -146,7 +146,10 @@ _C_LABEL(kernel_text):
mtc0 t0, MIPS_COP_0_STATUS # the fp coprocessor
COP0_SYNC
#ifdef HPCMIPS_L1CACHE_DISABLE
li t0, 0x00018c2 # XXX, KSEG0 is uncached
mfc0 t0, MIPS_COP_0_CONFIG
li t1, 0xfffffff8
and t0, t0, t1
or t0, 0x00000002 # XXX, KSEG0 is uncached
mtc0 t0, MIPS_COP_0_CONFIG
COP0_SYNC
#endif /* HPCMIPS_L1CACHE_DISABLE */