Clocks broken on Mac mini
Hal Murray
hmurray at megapathdsl.net
Mon Jan 30 12:47:10 UTC 2017
hugh at blemings.org said:
> That sounds right for getting into OpenFirware - but for what we're digging
> into you shouldn't need to putz with it.
I got into open firmware. It doesn't like my KVM switching setup. A real
keyboard worked.
I did a printenv and didn't see anything clock related.
So we need to figure out if my understanding of the calibration is correct.
Ahhh goodies from syslog:
Jan 30 04:30:44 deb-ppc kernel: [ 0.000000] time_init: decrementer
frequency = 41.600571 MHz
Jan 30 04:30:44 deb-ppc kernel: [ 0.000000] time_init: processor frequency
= 1499.999994 MHz
I think this is a 1.42 GHz G4. 1.5 is too far off so I'm missing something.
I'll have to figure out what a decrementer frequency is.
/pro/cpuinfo says:
processor : 0
cpu : 7447A, altivec supported
clock : 1499.999994MHz
revision : 1.2 (pvr 8003 0102)
bogomips : 83.20
timebase : 41600571
platform : PowerMac
model : PowerMac10,2
machine : PowerMac10,2
motherboard : PowerMac10,2 MacRISC3 Power Macintosh
detected as : 287 (Mac mini (Late 2005))
pmac flags : 00000010
L2 cache : 512K unified
pmac-generation : NewWorld
Memory : 512 MB
--
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