[coreboot-gerrit] Change in coreboot[master]: WIP amd/stoneyridge: Add FCH restore functions

[Marshall Dawson (Code Review)]

Marshall Dawson has uploaded this change for review. ( https://review.coreboot.org/23629

Change subject: WIP amd/stoneyridge: Add FCH restore functions
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WIP amd/stoneyridge: Add FCH restore functions

This is currently a placeholder which mimics the traditional methodology
for reinitializing the FCH during a resume.  It will be unnecessary if
AGESA is modified to execute these steps internally.

Change-Id: I12e302d8d690725d87caf63211eec7fcd67a7b0a
Signed-off-by: Marshall Dawson 
---
M src/soc/amd/stoneyridge/chip.c
M src/soc/amd/stoneyridge/northbridge.c
2 files changed, 8 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/29/23629/1

diff --git a/src/soc/amd/stoneyridge/chip.c b/src/soc/amd/stoneyridge/chip.c
index f5efcfd..f95fc1d 100644
--- a/src/soc/amd/stoneyridge/chip.c
+++ b/src/soc/amd/stoneyridge/chip.c
@@ -123,6 +123,11 @@
    	post_code(0x46);
    	do_agesawrapper(agesawrapper_amds3laterestore,
    					"amds3laterestore");
+
+		/* Begin the FCH restore */
+		post_code(0x47);
+		do_agesawrapper(agesawrapper_fchs3earlyrestore,
+						"fchs3earlyrestore");
    }
 }

diff --git a/src/soc/amd/stoneyridge/northbridge.c b/src/soc/amd/stoneyridge/northbridge.c
index 2449077..c78d113 100644
--- a/src/soc/amd/stoneyridge/northbridge.c
+++ b/src/soc/amd/stoneyridge/northbridge.c
@@ -429,6 +429,9 @@
    /* Must be called after PCI enumeration and resource allocation */
    if (!romstage_handoff_is_resume())
    	do_agesawrapper(agesawrapper_amdinitmid, "amdinitmid");
+	else
+		do_agesawrapper(agesawrapper_fchs3laterestore,
+						"fchs3laterestore");
 }

void domain_set_resources(device_t dev)