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

[coreboot.git] / src / mainboard / amd / pistachio / acpi_tables.c

diff --git a/src/mainboard/amd/pistachio/acpi_tables.c b/src/mainboard/amd/pistachio/acpi_tables.c
index eb3433cc619e43a258f2a12dd3a4f2663d381edc..dfb9167481f9865eaf377c903bede70faa5ddd09 100644 (file)
--- a/src/mainboard/amd/pistachio/acpi_tables.c
+++ b/src/mainboard/amd/pistachio/acpi_tables.c
@@ -258,12 +258,11 @@ u32 pstates_algorithm(acpi_header_t * dsdt)
                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