Shaunak Saha has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/45643 )
Change subject: mb/google/volteer: Disable HybridStorageMode for Volteer EVT and Delbin ......................................................................
mb/google/volteer: Disable HybridStorageMode for Volteer EVT and Delbin
HybridStorageMode FSP UPD needs to be set only for optane storage. Enabling HybridStorageMode causes some extra delay in FspSiliconInit due to HECI command and hence is avoided for NVMe and SATA scenerios. This change disables "HybridStorageMode" for volteer EVT and Delbin.
BUG=b:158573805 TEST=Build and boot volteer evt and confirm that FspSiliconInit time is reduced. In Volteer this saves ~100ms.
Signed-off-by: Shaunak Saha shaunak.saha@intel.com Change-Id: I54fc78e3f888d4f2a02ba0ad6b9aef33eb872a9c --- M src/mainboard/google/volteer/variants/delbin/overridetree.cb M src/mainboard/google/volteer/variants/volteer2/overridetree.cb 2 files changed, 4 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/43/45643/1
diff --git a/src/mainboard/google/volteer/variants/delbin/overridetree.cb b/src/mainboard/google/volteer/variants/delbin/overridetree.cb index 05c8a34..7624d40 100644 --- a/src/mainboard/google/volteer/variants/delbin/overridetree.cb +++ b/src/mainboard/google/volteer/variants/delbin/overridetree.cb @@ -2,6 +2,8 @@ register "DdiPort1Hpd" = "0" register "DdiPort2Hpd" = "0"
+ register "HybridStorageMode" = "0" + device domain 0 on device pci 15.0 on chip drivers/i2c/generic diff --git a/src/mainboard/google/volteer/variants/volteer2/overridetree.cb b/src/mainboard/google/volteer/variants/volteer2/overridetree.cb index 0bb82f1..b6d5c8a 100644 --- a/src/mainboard/google/volteer/variants/volteer2/overridetree.cb +++ b/src/mainboard/google/volteer/variants/volteer2/overridetree.cb @@ -5,6 +5,8 @@ register "DdiPort1Hpd" = "0" register "DdiPort2Hpd" = "0"
+ register "HybridStorageMode" = "0" + device domain 0 on device pci 05.0 on end # IPU 0x9A19 device pci 15.0 on