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-rw-r--r--chip/ish/hpet.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/chip/ish/hpet.h b/chip/ish/hpet.h
index 7a2a420c82..06738fafb1 100644
--- a/chip/ish/hpet.h
+++ b/chip/ish/hpet.h
@@ -17,6 +17,7 @@
/* HPET_GENERAL_CONFIG settings */
#define HPET_GENERAL_CONFIG REG32(ISH_HPET_BASE + 0x10)
#define HPET_ENABLE_CNF BIT(0)
+#define HPET_LEGACY_RT_CNF BIT(1)
/* Interrupt status acknowledge register */
#define HPET_INTR_CLEAR REG32(ISH_HPET_BASE + 0x20)