Lijian Zhao (lijian.zhao@intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/15092
-gerrit
commit 51c70a8e98d90bfd4cabfea9bdd513541fea9eaa Author: Zhao, Lijian lijian.zhao@intel.com Date: Tue May 17 19:26:18 2016 -0700
Amenia: Program EMMC dll setting
EMMC TX DATA Control need to be programmed to 0x1A1A, otherwise EMMC can not be running stable on HS400 speed.
Change-Id: I42c23ff7e6956e75de5e1b1339a570b35d999301 Signed-off-by: Zhao, Lijian lijian.zhao@intel.com Reviewed-on: https://chromium.devtools.intel.com/7373 Reviewed-by: Petrov, Andrey andrey.petrov@intel.com Tested-by: Petrov, Andrey andrey.petrov@intel.com Reviewed-on: https://chromium.devtools.intel.com/7586 --- src/mainboard/intel/amenia/devicetree.cb | 1 + 1 file changed, 1 insertion(+)
diff --git a/src/mainboard/intel/amenia/devicetree.cb b/src/mainboard/intel/amenia/devicetree.cb index af06848..6b934c4 100644 --- a/src/mainboard/intel/amenia/devicetree.cb +++ b/src/mainboard/intel/amenia/devicetree.cb @@ -9,6 +9,7 @@ chip soc/intel/apollolake
# Integrated Sensor Hub register "integrated_sensor_hub_enable" = "0" + register "emmc_tx_data_cntl1" = "0x1A1A" # HS400 required
device domain 0 on device pci 00.0 on end # - Host Bridge