[coreboot-gerrit] New patch to review for coreboot: mb/google/poppy: Disbale voltage margining

Rizwan Qureshi (rizwan.qureshi@intel.com) gerrit at coreboot.org
Thu Feb 23 10:43:32 CET 2017


Rizwan Qureshi (rizwan.qureshi at intel.com) just uploaded a new patch set to gerrit, which you can find at https://review.coreboot.org/18470

-gerrit

commit 5e45f5303f6931c5e56fd3ac14dc5493ba6b8cf9
Author: Rizwan Qureshi <rizwan.qureshi at intel.com>
Date:   Thu Feb 23 15:06:56 2017 +0530

    mb/google/poppy: Disbale voltage margining
    
    Voltage margining should be disabled for S0ix to work,
    disable the voltage margining when SLP_S0# is asserted.
    
    Change-Id: I68d4069563651c65c7b7a9d7fc16f7c12310ac1f
    Signed-off-by: Rizwan Qureshi <rizwan.qureshi at intel.com>
---
 src/mainboard/google/poppy/devicetree.cb | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/mainboard/google/poppy/devicetree.cb b/src/mainboard/google/poppy/devicetree.cb
index 07cacc0..7f90ad0 100644
--- a/src/mainboard/google/poppy/devicetree.cb
+++ b/src/mainboard/google/poppy/devicetree.cb
@@ -52,6 +52,7 @@ chip soc/intel/skylake
 	register "PmConfigSlpAMinAssert" = "3"         # 2s
 	register "PmTimerDisabled" = "1"
 	register "SendVrMbxCmd" = "1"                  # IMVP8 workaround
+	register "PchPmSlpS0VmEnable" = "0"            # Disbale Voltage Margining
 
 	register "pirqa_routing" = "PCH_IRQ11"
 	register "pirqb_routing" = "PCH_IRQ10"



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