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Update from Intel SDM:

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- Add busclock values for Airmont.
This commit is contained in:
msaitoh 2015-03-27 05:32:38 +00:00
parent c034104b35
commit e1434c250b
1 changed files with 52 additions and 2 deletions
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54
sys/arch/x86/x86/intel_busclock.c
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@ -1,4 +1,4 @@
/* $NetBSD: intel_busclock.c,v 1.20 2014/12/17 03:39:02 msaitoh Exp $ */
/* $NetBSD: intel_busclock.c,v 1.21 2015/03/27 05:32:38 msaitoh Exp $ */
/*-
* Copyright (c) 1999, 2000, 2001 The NetBSD Foundation, Inc.
@ -30,7 +30,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: intel_busclock.c,v 1.20 2014/12/17 03:39:02 msaitoh Exp $");
__KERNEL_RCSID(0, "$NetBSD: intel_busclock.c,v 1.21 2015/03/27 05:32:38 msaitoh Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -272,6 +272,56 @@ p3_get_bus_clock(struct cpu_info *ci)
goto print_msr;
}
break;
case 0x4c: /* Airmont */
if (rdmsr_safe(MSR_FSB_FREQ, &msr) == EFAULT) {
aprint_debug_dev(ci->ci_dev,
"unable to determine bus speed");
goto print_msr;
}
bus = (msr >> 0) & 0xf;
switch (bus) {
case 0:
bus_clock = 8333;
break;
case 1:
bus_clock = 10000;
break;
case 2:
bus_clock = 13333;
break;
case 3:
bus_clock = 11650;
break;
case 4:
bus_clock = 8333;
break;
case 5:
bus_clock = 10000;
break;
case 6:
bus_clock = 13333;
break;
case 7:
bus_clock = 11666;
break;
case 12:
bus_clock = 8000;
break;
case 13:
bus_clock = 9333;
break;
case 14:
bus_clock = 9000;
break;
case 15:
bus_clock = 8888;
break;
default:
aprint_debug("%s: unknown Airmont FSB_FREQ value %d",
device_xname(ci->ci_dev), bus);
goto print_msr;
}
break;
default:
aprint_debug("%s: unknown i686 model %02x, can't get bus clock",
device_xname(ci->ci_dev),