skylake,kabylake: Add support to set eMMC tuning param from dev tree
Add support to set eMMC tuning params from the device tree so that it
can be configured per board.
BUG=b:112718426,b:112690628
BRANCH=none
TEST=Build nocturne image and checked values passed in dev tree is set
by FSP.
Change-Id: Ic71934dce9a1c380a057e579ca3fda41983b9385
Signed-off-by: Pratik Prajapati <pratikkumar.v.prajapati@intel.com>
Reviewed-on: https://review.coreboot.org/28274
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lijian Zhao <lijian.zhao@intel.com>
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-by: Nick Vaccaro <nvaccaro@google.com>
diff --git a/src/soc/intel/skylake/chip_fsp20.c b/src/soc/intel/skylake/chip_fsp20.c
index d5f5433..c2c0745 100644
--- a/src/soc/intel/skylake/chip_fsp20.c
+++ b/src/soc/intel/skylake/chip_fsp20.c
@@ -336,6 +336,15 @@
params->ScsEmmcHs400Enabled = config->ScsEmmcHs400Enabled;
params->ScsSdCardEnabled = config->ScsSdCardEnabled;
+ if (!!params->ScsEmmcHs400Enabled && !!config->EmmcHs400DllNeed) {
+ params->PchScsEmmcHs400DllDataValid =
+ !!config->EmmcHs400DllNeed;
+ params->PchScsEmmcHs400RxStrobeDll1 =
+ config->ScsEmmcHs400RxStrobeDll1;
+ params->PchScsEmmcHs400TxDataDll =
+ config->ScsEmmcHs400TxDataDll;
+ }
+
/* If ISH is enabled, enable ISH elements */
dev = dev_find_slot(0, PCH_DEVFN_ISH);
if (dev)