[coreboot-gerrit] Change in coreboot[master]: soc/intel/cannonlake: Add support for EMMC DLL update
Lijian Zhao (Code Review)
gerrit at coreboot.org
Tue Feb 6 03:19:28 CET 2018
Lijian Zhao has uploaded this change for review. ( https://review.coreboot.org/23600
Change subject: soc/intel/cannonlake: Add support for EMMC DLL update
......................................................................
soc/intel/cannonlake: Add support for EMMC DLL update
Add option to have customized DLL setting for EMMC interface to make
EMMC able to running at HS400 speed.
BUG=None
Change-Id: I38bc022d8c05dd1fbd03dc26aa6f33cd249e8248
Signed-off-by: Lijian Zhao <lijian.zhao at intel.com>
---
M src/soc/intel/cannonlake/chip.c
M src/soc/intel/cannonlake/chip.h
2 files changed, 12 insertions(+), 1 deletion(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/00/23600/1
diff --git a/src/soc/intel/cannonlake/chip.c b/src/soc/intel/cannonlake/chip.c
index f05b55a..68f95d3 100644
--- a/src/soc/intel/cannonlake/chip.c
+++ b/src/soc/intel/cannonlake/chip.c
@@ -262,6 +262,12 @@
/* eMMC and SD */
params->ScsEmmcEnabled = config->ScsEmmcEnabled;
params->ScsEmmcHs400Enabled = config->ScsEmmcHs400Enabled;
+ params->PchScsEmmcHs400DllDataValid = config->EmmcHs400DllNeed;
+ if (config->EmmcHs400DllNeed == 1) {
+ params->PchScsEmmcHs400RxStrobeDll1 =
+ config->EmmcHs400RxStrobeDll1;
+ params->PchScsEmmcHs400TxDataDll = config->EmmcHs400TxDataDll;
+ }
params->ScsSdCardEnabled = config->ScsSdCardEnabled;
params->ScsUfsEnabled = config->ScsUfsEnabled;
diff --git a/src/soc/intel/cannonlake/chip.h b/src/soc/intel/cannonlake/chip.h
index a42494c..fd86b8d 100644
--- a/src/soc/intel/cannonlake/chip.h
+++ b/src/soc/intel/cannonlake/chip.h
@@ -155,7 +155,12 @@
/* eMMC and SD */
uint8_t ScsEmmcEnabled;
uint8_t ScsEmmcHs400Enabled;
- uint8_t PchScsEmmcHs400TuningRequired;
+ /* Need to update DLL setting to get Emmc running at HS400 speed */
+ uint8_t EmmcHs400DllNeed;
+ /* 0-39: number of active delay for RX strobe, unit is 125 pSec */
+ uint8_t EmmcHs400RxStrobeDll1;
+ /* 0-78: number of active delay for TX data, unit is 125 pSec */
+ uint8_t EmmcHs400TxDataDll;
uint8_t ScsSdCardEnabled;
uint8_t ScsUfsEnabled;
--
To view, visit https://review.coreboot.org/23600
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Gerrit-Project: coreboot
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: I38bc022d8c05dd1fbd03dc26aa6f33cd249e8248
Gerrit-Change-Number: 23600
Gerrit-PatchSet: 1
Gerrit-Owner: Lijian Zhao <lijian.zhao at intel.com>
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