Author: mjones Date: 2009-01-06 17:45:42 +0100 (Tue, 06 Jan 2009) New Revision: 3847
Modified: trunk/coreboot-v2/src/mainboard/amd/dbm690t/acpi_tables.c trunk/coreboot-v2/src/mainboard/amd/pistachio/acpi_tables.c Log: 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
Modified: trunk/coreboot-v2/src/mainboard/amd/dbm690t/acpi_tables.c =================================================================== --- trunk/coreboot-v2/src/mainboard/amd/dbm690t/acpi_tables.c 2009-01-06 00:33:30 UTC (rev 3846) +++ trunk/coreboot-v2/src/mainboard/amd/dbm690t/acpi_tables.c 2009-01-06 16:45:42 UTC (rev 3847) @@ -258,12 +258,11 @@ 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 = ((cpuid1.edx & 0x40) >> 6) * 100; + fid_multiplier = 100;
/* * Formula1: CPUFreq = FID * fid_multiplier + 800
Modified: trunk/coreboot-v2/src/mainboard/amd/pistachio/acpi_tables.c =================================================================== --- trunk/coreboot-v2/src/mainboard/amd/pistachio/acpi_tables.c 2009-01-06 00:33:30 UTC (rev 3846) +++ trunk/coreboot-v2/src/mainboard/amd/pistachio/acpi_tables.c 2009-01-06 16:45:42 UTC (rev 3847) @@ -258,12 +258,11 @@ 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 = ((cpuid1.edx & 0x40) >> 6) * 100; + fid_multiplier = 100;
/* * Formula1: CPUFreq = FID * fid_multiplier + 800
-
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