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Calc. cpu speed for VR4122.

This commit is contained in:
enami 2001-05-16 10:49:18 +00:00
parent eef5fa50d3
commit fb619e9a70
1 changed files with 23 additions and 1 deletions
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24
sys/arch/hpcmips/vr/bcu_vrip.c
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@ -1,4 +1,4 @@
/* $NetBSD: bcu_vrip.c,v 1.8 2001/04/21 14:44:40 sato Exp $ */
/* $NetBSD: bcu_vrip.c,v 1.9 2001/05/16 10:49:18 enami Exp $ */
/*-
* Copyright (c) 1999-2001 SATO Kazumi. All rights reserved.
@ -201,6 +201,23 @@ vrbcu_dump_regs()
}
break;
#endif /* VR4121 */
#if defined VR4122
case BCUREVID_RID_4122:
{
int vt;
tclock = cpuclock /
(((spdreg & BCUCLKSPEED_TDIVMODE) >>
BCUCLKSPEED_TDIVSHFT) ? 4 : 2);
vt = ((spdreg & BCUCLKSPEED_VTDIVMODE) >>
BCUCLKSPEED_VTDIVSHFT);
if (vt == 0 || vt > BCUCLKSPEED_VTDIV6)
vtclock = 0; /* XXX */
else
vtclock = cpuclock / vt;
}
break;
#endif /* VR4122 */
default:
break;
}
@ -390,6 +407,11 @@ vrbcu_vrip_getcpuclock(void)
/* branch delay is 2 clock; 3 clock/loop */
cpuspeed = (cpuclock / 3 + MHZ / 2) / MHZ;
break;
case BCUREVID_RID_4122:
cpuclock = CLKX / clksp * 98;
/* branch delay is 2 clock; 3 clock/loop */
cpuspeed = (cpuclock / 3 + MHZ / 2) / MHZ;
break;
default:
panic("unknown CPU type %d\n", cpuid);
break;