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-rw-r--r--src/southbridge/intel/lynxpoint/finalize.c3
-rw-r--r--src/southbridge/intel/lynxpoint/pch.h2
2 files changed, 5 insertions, 0 deletions
diff --git a/src/southbridge/intel/lynxpoint/finalize.c b/src/southbridge/intel/lynxpoint/finalize.c
index d9bc22531c..d81f90ecdb 100644
--- a/src/southbridge/intel/lynxpoint/finalize.c
+++ b/src/southbridge/intel/lynxpoint/finalize.c
@@ -54,6 +54,9 @@ void intel_pch_finalize_smm(void)
/* GEN_PMCON Lock */
pci_or_config8(PCH_LPC_DEV, 0xa6, (1 << 1) | (1 << 2));
+ /* PMSYNC */
+ RCBA32_OR(PMSYNC_CONFIG, (1 << 31));
+
/* R/WO registers */
RCBA32(0x21a4) = RCBA32(0x21a4);
pci_write_config32(PCI_DEV(0, 27, 0), 0x74,
diff --git a/src/southbridge/intel/lynxpoint/pch.h b/src/southbridge/intel/lynxpoint/pch.h
index 4bdb9268e9..58b07d16cc 100644
--- a/src/southbridge/intel/lynxpoint/pch.h
+++ b/src/southbridge/intel/lynxpoint/pch.h
@@ -574,6 +574,8 @@ void set_gpio(int gpio_num, int value);
#define D19IR 0x3168 /* 16bit */
#define ACPIIRQEN 0x31e0 /* 32bit */
#define OIC 0x31fe /* 16bit */
+#define PMSYNC_CONFIG 0x33c4 /* 32bit */
+#define PMSYNC_CONFIG2 0x33cc /* 32bit */
#define SOFT_RESET_CTRL 0x38f4
#define SOFT_RESET_DATA 0x38f8