[coreboot-gerrit] Patch set updated for coreboot: google/eve: Apply default AC/DC loadline settings

[Duncan Laurie (dlaurie@chromium.org)]

Duncan Laurie (dlaurie at chromium.org) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18820

-gerrit

commit 1c72444bb4d3edb88442b708cdacb14ee8eaafbe
Author: Duncan Laurie <dlaurie at chromium.org>
Date:   Tue Mar 14 16:42:33 2017 -0700

    google/eve: Apply default AC/DC loadline settings
    
    Set the AC and DC loadline values based on the KBL-Y 2+2 defaults
    that are applied by FSP.  These will be tuned later and are exposed
    as defaults so the engineers know what to start with.
    
    BUG=b:36228330
    BRANCH=none
    TEST=Build and boot on Eve and check debug FSP output to ensure that
    it is applying the provided loadline values
    
    Change-Id: Ieae4f2b201d8210e75bdb9438070a3a2e1fda6b7
    Signed-off-by: Duncan Laurie <dlaurie at chromium.org>
---
 src/mainboard/google/eve/devicetree.cb | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/src/mainboard/google/eve/devicetree.cb b/src/mainboard/google/eve/devicetree.cb
index 593bd57..cd13279 100644
--- a/src/mainboard/google/eve/devicetree.cb
+++ b/src/mainboard/google/eve/devicetree.cb
@@ -74,6 +74,8 @@ chip soc/intel/skylake
 	#| ImonOffset     | 0     | 0     | 0     | 0     |
 	#| IccMax         | 4A    | 24A   | 24A   | 24A   |
 	#| VrVoltageLimit | 1.52V | 1.52V | 1.52V | 1.52V |
+	#| AcLoadline     | 17.9  | 5.9   | 5.7   | 5.7   |
+	#| DcLoadline     | 14    | 4.7   | 4.2   | 4.2   |
 	#+----------------+-------+-------+-------+-------+
 	register "domain_vr_config[VR_SYSTEM_AGENT]" = "{
 		.vr_config_enable = 1,
@@ -86,6 +88,8 @@ chip soc/intel/skylake
 		.imon_offset = 0x0,
 		.icc_max = VR_CFG_AMP(4),
 		.voltage_limit = 1520,
+		.ac_loadline = 1790,
+		.dc_loadline = 1400,
 	}"
 
 	register "domain_vr_config[VR_IA_CORE]" = "{
@@ -99,6 +103,8 @@ chip soc/intel/skylake
 		.imon_offset = 0x0,
 		.icc_max = VR_CFG_AMP(24),
 		.voltage_limit = 1520,
+		.ac_loadline = 590,
+		.dc_loadline = 470,
 	}"
 
 	register "domain_vr_config[VR_GT_UNSLICED]" = "{
@@ -112,6 +118,8 @@ chip soc/intel/skylake
 		.imon_offset = 0x0,
 		.icc_max = VR_CFG_AMP(24),
 		.voltage_limit = 1520,
+		.ac_loadline = 570,
+		.dc_loadline = 420,
 	}"
 
 	register "domain_vr_config[VR_GT_SLICED]" = "{
@@ -125,6 +133,8 @@ chip soc/intel/skylake
 		.imon_offset = 0x0,
 		.icc_max = VR_CFG_AMP(24),
 		.voltage_limit = 1520,
+		.ac_loadline = 570,
+		.dc_loadline = 420,
 	}"
 
 	# Enable Root port 1 with SRCCLKREQ1#