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-rw-r--r--src/include/cpu/amd/msr.h1
-rw-r--r--src/soc/amd/stoneyridge/pstate_util.c2
2 files changed, 2 insertions, 1 deletions
diff --git a/src/include/cpu/amd/msr.h b/src/include/cpu/amd/msr.h
index ccc9719cb6..3f7febc462 100644
--- a/src/include/cpu/amd/msr.h
+++ b/src/include/cpu/amd/msr.h
@@ -41,6 +41,7 @@
#define PS_STS_REG 0xC0010063
#define PSTATE_0_MSR 0xC0010064
#define PSTATE_MSR(pstate) (PSTATE_0_MSR + (pstate))
+#define PSTATE_MSR_COUNT 8
#define MSR_PATCH_LOADER 0xC0010020
diff --git a/src/soc/amd/stoneyridge/pstate_util.c b/src/soc/amd/stoneyridge/pstate_util.c
index 12bc2b5cfa..cd5878f82a 100644
--- a/src/soc/amd/stoneyridge/pstate_util.c
+++ b/src/soc/amd/stoneyridge/pstate_util.c
@@ -21,7 +21,7 @@ static bool all_pstates_have_same_frequency_id(void)
bool first = true;
uint32_t frequency_id;
- for (i = 0; i < 8; i++) {
+ for (i = 0; i < PSTATE_MSR_COUNT; i++) {
pstate_reg.raw = rdmsr(PSTATE_MSR(i)).raw;
if (!pstate_reg.pstate_en)