From bf131b26165125d452b694ef83926c2c32bf99d0 Mon Sep 17 00:00:00 2001
From: Marshall Dawson <marshalldawson3rd@gmail.com>
Date: Tue, 7 Nov 2017 12:37:12 -0700
Subject: amd/stoneyridge: Implement vboot_platform_is_resuming

Change-Id: I23882ad8cd93fbc25acd8a07eca6a78b6bafc191
Signed-off-by: Marshall Dawson <marshalldawson3rd@gmail.com>
Reviewed-on: https://review.coreboot.org/22414
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Marc Jones <marc@marcjonesconsulting.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
---
 src/soc/amd/stoneyridge/Makefile.inc |  1 +
 src/soc/amd/stoneyridge/pmutil.c     | 11 +++++++++++
 2 files changed, 12 insertions(+)

(limited to 'src/soc/amd')

diff --git a/src/soc/amd/stoneyridge/Makefile.inc b/src/soc/amd/stoneyridge/Makefile.inc
index 921691f432..197145aee4 100644
--- a/src/soc/amd/stoneyridge/Makefile.inc
+++ b/src/soc/amd/stoneyridge/Makefile.inc
@@ -58,6 +58,7 @@ romstage-y += ramtop.c
 romstage-$(CONFIG_STONEYRIDGE_UART) += uart.c
 romstage-y += tsc_freq.c
 
+verstage-y += sb_util.c
 verstage-y += pmutil.c
 verstage-y += reset.c
 verstage-$(CONFIG_STONEYRIDGE_UART) += uart.c
diff --git a/src/soc/amd/stoneyridge/pmutil.c b/src/soc/amd/stoneyridge/pmutil.c
index 89d3640801..25c9ec15c1 100644
--- a/src/soc/amd/stoneyridge/pmutil.c
+++ b/src/soc/amd/stoneyridge/pmutil.c
@@ -13,6 +13,9 @@
  * GNU General Public License for more details.
  */
 
+#include <arch/acpi.h>
+#include <soc/southbridge.h>
+#include <security/vboot/vboot_common.h>
 #include <security/vboot/vbnv.h>
 
 int vbnv_cmos_failed(void)
@@ -20,3 +23,11 @@ int vbnv_cmos_failed(void)
 	/* FIXME: RTC failure checking not supported. */
 	return 0;
 }
+
+int vboot_platform_is_resuming(void)
+{
+	if (!(inw(pm_acpi_pm_evt_blk()) & WAK_STS))
+		return 0;
+
+	return acpi_sleep_from_pm1(inw(pm_acpi_pm_cnt_blk())) == ACPI_S3;
+}
-- 
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