[coreboot-gerrit] Change in coreboot[master]: mb/google/fizz: Enable mbox command for ISL VR c-state issue

[Rizwan Qureshi (Code Review)]

Rizwan Qureshi has uploaded this change for review. ( https://review.coreboot.org/22763


Change subject: mb/google/fizz: Enable mbox command for ISL VR c-state issue
......................................................................

mb/google/fizz: Enable mbox command for ISL VR c-state issue

There is a potential IMVP8 issue for KBL that affects Intersil VRs
Fizz is using one of the affected parts. The fix is to use an updated
microcode and also send a mailbox box command from FSP.

BUG=b:65499724
BRANCH=None
TEST=Build and boot Fizz

Change-Id: Iebfda02df88ea0d2aaf79e8449b95c0eb2165c6b
Signed-off-by: Rizwan Qureshi <rizwan.qureshi at intel.com>
---
M src/mainboard/google/fizz/devicetree.cb
1 file changed, 1 insertion(+), 0 deletions(-)



  git pull ssh://review.coreboot.org:29418/coreboot refs/changes/63/22763/1

diff --git a/src/mainboard/google/fizz/devicetree.cb b/src/mainboard/google/fizz/devicetree.cb
index 1590252..c81110c 100644
--- a/src/mainboard/google/fizz/devicetree.cb
+++ b/src/mainboard/google/fizz/devicetree.cb
@@ -84,6 +84,7 @@
 	register "PmConfigSlpAMinAssert" = "3"         # 2s
 	register "PmTimerDisabled" = "1"
 	register "SendVrMbxCmd" = "1"                  # IMVP8 workaround
+	register "IslVrCmd" = "2"                      # Intersil VR issue WA
 
 	register "pirqa_routing" = "PCH_IRQ11"
 	register "pirqb_routing" = "PCH_IRQ10"

-- 
To view, visit https://review.coreboot.org/22763
To unsubscribe, visit https://review.coreboot.org/settings

Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Iebfda02df88ea0d2aaf79e8449b95c0eb2165c6b
Gerrit-Change-Number: 22763
Gerrit-PatchSet: 1
Gerrit-Owner: Rizwan Qureshi <rizwan.qureshi at intel.com>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.coreboot.org/pipermail/coreboot-gerrit/attachments/20171206/f1d0c4c7/attachment-0001.html>