From 1b50affb1fdda52a5986c9429713930ed517a86a Mon Sep 17 00:00:00 2001
From: Aaron Durbin <adurbin@chromium.org>
Date: Thu, 6 Feb 2014 10:31:16 -0600
Subject: [PATCH] baytrail: invoke SMM finalization on handoff

Instead of relying on the bootloader or each mainboard
to invoke SMM finalization have the chipset control
when it is done.

BUG=chrome-os-partner:24624
BRANCH=baytrail
TEST=Booted and resumed with SMI debug. Noted SMI.

Change-Id: Ifee071fe5704296b896188b26740094344ad756f
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/185201
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
---
 src/soc/intel/baytrail/southcluster.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/soc/intel/baytrail/southcluster.c b/src/soc/intel/baytrail/southcluster.c
index 046f3bdab8..c0bfd1e202 100644
--- a/src/soc/intel/baytrail/southcluster.c
+++ b/src/soc/intel/baytrail/southcluster.c
@@ -23,6 +23,7 @@
 #include <bootstate.h>
 #include <cbmem.h>
 #include <console/console.h>
+#include <cpu/x86/smm.h>
 #include <device/device.h>
 #include <device/pci.h>
 #include <device/pci_ids.h>
@@ -440,6 +441,9 @@ static void finalize_chipset(void *unused)
 
 	/*  Set the CF9 lock. */
 	write32(etr, read32(etr) | CF9LOCK);
+
+	printk(BIOS_DEBUG, "Finalizing SMM.\n");
+	outb(APM_CNT_FINALIZE, APM_CNT);
 }
 
 BOOT_STATE_INIT_ENTRIES(finalize_bscb) = {