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


-- 
These are my opinions.  I hate spam.





More information about the devel mailing list