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-rw-r--r--src/cpu/intel/model_6fx/model_6fx_init.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/cpu/intel/model_6fx/model_6fx_init.c b/src/cpu/intel/model_6fx/model_6fx_init.c
index 033dfe6639..106719ea7b 100644
--- a/src/cpu/intel/model_6fx/model_6fx_init.c
+++ b/src/cpu/intel/model_6fx/model_6fx_init.c
@@ -127,6 +127,8 @@ static void configure_c_states(void)
}
#define IA32_MISC_ENABLE 0x1a0
+#define IA32_PECI_CTL 0x5a0
+
static void configure_misc(void)
{
msr_t msr;
@@ -170,6 +172,12 @@ static void configure_misc(void)
msr.lo |= vid_max;
wrmsr(IA32_PERF_CTL, msr);
+
+ /* Enable PECI */
+ msr = rdmsr(IA32_PECI_CTL);
+ msr.lo |= 1;
+ wrmsr(IA32_PECI_CTL, msr);
+
}
#define PIC_SENS_CFG 0x1aa