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Commit 667ad4f7 authored by maximilian attems's avatar maximilian attems Committed by Dave Jones
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[CPUFREQ] Crusoe: longrun cpufreq module reports false min freq 

The longrun cpufreq module reports a false minimum frequency 3MHz on
300-600MHz Crusoe processor.  This may be due to a calculation bug
in the module.

Original patch from Kaz Sasayama <kazssym@hypercore.co.jp>
submitted as http://bugs.debian.org/468149

 patch ported to x86

Cc: Kaz Sasayama <kazssym@hypercore.co.jp>
Signed-off-by: default avatarmaximilian attems <max@stro.at>
Signed-off-by: default avatarDave Jones <davej@redhat.com>
parent eba9fe93

arch/x86/kernel/cpu/cpufreq/longrun.c

+1 −1
Original line number Diff line number Diff line
@@ -245,7 +245,7 @@ static unsigned int __init longrun_determine_freqs(unsigned int *low_freq, 
	if ((ecx > 95) || (ecx == 0) || (eax < ebx))

		return -EIO;



	edx = (eax - ebx) / (100 - ecx);

	edx = ((eax - ebx) * 100) / (100 - ecx);

	*low_freq = edx * 1000; /* back to kHz */



	dprintk("low frequency is %u kHz\n", *low_freq);