[coreboot-gerrit] Patch set updated for coreboot: a1ce2f5 google/panther: Avoid shutdown when thermal sensor is unavailable

[Patrick Georgi (patrick@georgi-clan.de)]

Patrick Georgi (patrick at georgi-clan.de) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/6002

-gerrit

commit a1ce2f58ac09d3c0d8d660687aa2b91584552ca0
Author: Stefan Reinauer <reinauer at chromium.org>
Date:   Mon Jan 13 17:40:37 2014 -0800

    google/panther: Avoid shutdown when thermal sensor is unavailable
    
    When the thermal sensor on Panther is unavailable (early on resume)
    it will return 0x80 which causes our AML thermal code to overflow,
    which causes the system to shut down. Instead, return a reasonable
    value in those cases so that the system will continue running until
    the sensor gets back on its feet.
    
    BUG=chrome-os-partner:24918
    BRANCH=panther
    TEST=suspend_resume_test survived more than 100 iterations on Panther
    
    Change-Id: Ib2d714c39d353ce2415361bc6590784a3f6837d2
    Signed-off-by: Matt DeVillier <matt.devillier at gmail.com>
    Signed-off-by: Stefan Reinauer <reinauer at google.com>
    Reviewed-on: https://chromium-review.googlesource.com/182369
    Tested-by: Stefan Reinauer <reinauer at chromium.org>
    Reviewed-by: Duncan Laurie <dlaurie at chromium.org>
    Commit-Queue: Stefan Reinauer <reinauer at chromium.org>
---
 src/mainboard/google/panther/acpi/thermal.asl | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/mainboard/google/panther/acpi/thermal.asl b/src/mainboard/google/panther/acpi/thermal.asl
index a6ea851..7f02170 100644
--- a/src/mainboard/google/panther/acpi/thermal.asl
+++ b/src/mainboard/google/panther/acpi/thermal.asl
@@ -66,6 +66,11 @@ Scope (\_TZ)
 			// Get CPU Temperature from PECI via SuperIO TMPIN3
 			Store (\_SB.PCI0.LPCB.SIO.ENVC.TIN3, Local0)
 
+			// Check for "no reading available
+			If (LEqual (Local0, 0x80)) {
+				Return (CTOK (\F2ON))
+			}
+
 			// Check for invalid readings
 			If (LOr (LEqual (Local0, 255), LEqual (Local0, 0))) {
 				Return (CTOK (\F2ON))