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The ACPI PSS CPU Pstate table was calculating the frequency incorrectly for 

revF CPUs. The 100MHz/200MHz stepping is already handled in the FID setting
and doesn't need to be checked to set the fid_multiplier. The multiplier is
always 100.

Signed-off-by: Marc Jones <marcj303@gmail.com>
Acked-by: zheng bao <zheng.bao@amd.com>

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3847 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Marc Jones 2009-01-06 16:45:42 +00:00 committed by Marc Jones
parent fdbb8d860a
commit 505aaf56e2
2 changed files with 6 additions and 8 deletions
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7
src/mainboard/amd/dbm690t/acpi_tables.c
View File

@ -258,12 +258,11 @@ u32 pstates_algorithm(acpi_header_t * dsdt)
return 0; return 0;
} }
/*get the multipier of the fid frequency */ /* Get the multipier of the fid frequency */
/* /*
* In RevG, 100MHz step is added * Fid multiplier is always 100 revF and revG.
*/ */
cpuid1 = cpuid(0x80000007); fid_multiplier = 100;
fid_multiplier = ((cpuid1.edx & 0x40) >> 6) * 100;
/* /*
* Formula1: CPUFreq = FID * fid_multiplier + 800 * Formula1: CPUFreq = FID * fid_multiplier + 800

7
src/mainboard/amd/pistachio/acpi_tables.c
View File

@ -258,12 +258,11 @@ u32 pstates_algorithm(acpi_header_t * dsdt)
return 0; return 0;
} }
/*get the multipier of the fid frequency */ /* Get the multipier of the fid frequency */
/* /*
* In RevG, 100MHz step is added * Fid multiplier is always 100 revF and revG.
*/ */
cpuid1 = cpuid(0x80000007); fid_multiplier = 100;
fid_multiplier = ((cpuid1.edx & 0x40) >> 6) * 100;
/* /*
* Formula1: CPUFreq = FID * fid_multiplier + 800 * Formula1: CPUFreq = FID * fid_multiplier + 800