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-rw-r--r--src/mainboard/google/kahlee/acpi/thermal.asl90
-rw-r--r--src/mainboard/google/kahlee/dsdt.asl3
-rw-r--r--src/mainboard/google/kahlee/mainboard.c18
-rw-r--r--src/mainboard/google/kahlee/variants/grunt/include/variant/thermal.h38
-rw-r--r--src/mainboard/google/kahlee/variants/kahlee/include/variant/thermal.h38
5 files changed, 187 insertions, 0 deletions
diff --git a/src/mainboard/google/kahlee/acpi/thermal.asl b/src/mainboard/google/kahlee/acpi/thermal.asl
new file mode 100644
index 0000000000..86f8758892
--- /dev/null
+++ b/src/mainboard/google/kahlee/acpi/thermal.asl
@@ -0,0 +1,90 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <variant/thermal.h>
+
+/* Thermal Zone */
+
+Scope (\_TZ)
+{
+ ThermalZone (THRM)
+ {
+ /* Thermal constants for passive cooling */
+ Name (_TC1, 0x02)
+ Name (_TC2, 0x05)
+
+ /* Thermal zone polling frequency: 10 seconds */
+ Name (_TZP, 100)
+
+ /* Thermal sampling period for passive cooling: 2 seconds */
+ Name (_TSP, 20)
+
+ /* Convert from Degrees C to 1/10 Kelvin for ACPI */
+ Method (CTOK, 1) {
+ /* 10th of Degrees C */
+ Multiply (Arg0, 10, Local0)
+
+ /* Convert to Kelvin */
+ Add (Local0, 2732, Local0)
+
+ Return (Local0)
+ }
+
+ /* Threshold for OS to shutdown */
+ Method (_CRT, 0, Serialized)
+ {
+ Return (CTOK (\TCRT))
+ }
+
+ /* Threshold for passive cooling */
+ Method (_PSV, 0, Serialized)
+ {
+ Return (CTOK (\TPSV))
+ }
+
+ /* Processors used for passive cooling */
+ Method (_PSL, 0, Serialized)
+ {
+ Return (\PPKG ())
+ }
+
+ Method (_TMP, 0, Serialized)
+ {
+ /* Get temperature from EC in deci-kelvin */
+ Store (\_SB.PCI0.LPCB.EC0.TSRD (TMPS), Local0)
+
+ /* Critical temperature in deci-kelvin */
+ Store (CTOK (\TCRT), Local1)
+
+ If (LGreaterEqual (Local0, Local1)) {
+ Store ("CRITICAL TEMPERATURE", Debug)
+ Store (Local0, Debug)
+
+ /* Wait 1 second for EC to re-poll */
+ Sleep (1000)
+
+ /* Re-read temperature from EC */
+ Store (\_SB.PCI0.LPCB.EC0.TSRD (TMPS), Local0)
+
+ Store ("RE-READ TEMPERATURE", Debug)
+ Store (Local0, Debug)
+ }
+
+ Return (Local0)
+ }
+
+ /* No active fan control (_ACx) on Kahlee */
+ }
+}
diff --git a/src/mainboard/google/kahlee/dsdt.asl b/src/mainboard/google/kahlee/dsdt.asl
index ed34f9daea..708219a1e9 100644
--- a/src/mainboard/google/kahlee/dsdt.asl
+++ b/src/mainboard/google/kahlee/dsdt.asl
@@ -77,6 +77,9 @@ DefinitionBlock (
} /* End \_SB scope */
+ /* Thermal handler */
+ #include "acpi/thermal.asl"
+
/* Chrome OS specific */
#include <vendorcode/google/chromeos/acpi/chromeos.asl>
diff --git a/src/mainboard/google/kahlee/mainboard.c b/src/mainboard/google/kahlee/mainboard.c
index 9c3f4ad666..e21aa02080 100644
--- a/src/mainboard/google/kahlee/mainboard.c
+++ b/src/mainboard/google/kahlee/mainboard.c
@@ -18,9 +18,12 @@
#include <arch/acpi.h>
#include <agesawrapper.h>
#include <amd_pci_util.h>
+#include <cbmem.h>
#include <ec.h>
#include <baseboard/variants.h>
+#include <soc/nvs.h>
#include <soc/smi.h>
+#include <variant/thermal.h>
#include <vendorcode/google/chromeos/chromeos.h>
/***********************************************************
@@ -104,7 +107,22 @@ static void kahlee_enable(device_t dev)
dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
}
+
+static void mainboard_final(void *chip_info)
+{
+ struct global_nvs_t *gnvs;
+
+ gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
+
+ if (gnvs) {
+ gnvs->tmps = CTL_TDP_SENSOR_ID;
+ gnvs->tcrt = CRITICAL_TEMPERATURE;
+ gnvs->tpsv = PASSIVE_TEMPERATURE;
+ }
+}
+
struct chip_operations mainboard_ops = {
.init = mainboard_init,
.enable_dev = kahlee_enable,
+ .final = mainboard_final,
};
diff --git a/src/mainboard/google/kahlee/variants/grunt/include/variant/thermal.h b/src/mainboard/google/kahlee/variants/grunt/include/variant/thermal.h
new file mode 100644
index 0000000000..2c983bb738
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/grunt/include/variant/thermal.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef THERMAL_H
+#define THERMAL_H
+
+/*
+ * Stoney Ridge Thermal Requirements 12 (6W)
+ * TDP (W) 6
+ * T die,max (°C) 95
+ * T ctl,max 85
+ * T die,lmt (default) 90
+ * T ctl,lmt (default) 80
+ */
+
+/* Control TDP Settings */
+#define CTL_TDP_SENSOR_ID 0 /* EC TIN0 */
+
+/* Temperature which OS will shutdown at */
+#define CRITICAL_TEMPERATURE 94
+
+/* Temperature which OS will throttle CPU */
+#define PASSIVE_TEMPERATURE 85
+
+#endif
diff --git a/src/mainboard/google/kahlee/variants/kahlee/include/variant/thermal.h b/src/mainboard/google/kahlee/variants/kahlee/include/variant/thermal.h
new file mode 100644
index 0000000000..2c983bb738
--- /dev/null
+++ b/src/mainboard/google/kahlee/variants/kahlee/include/variant/thermal.h
@@ -0,0 +1,38 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2014 Google Inc.
+ * Copyright (C) 2017 Advanced Micro Devices, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef THERMAL_H
+#define THERMAL_H
+
+/*
+ * Stoney Ridge Thermal Requirements 12 (6W)
+ * TDP (W) 6
+ * T die,max (°C) 95
+ * T ctl,max 85
+ * T die,lmt (default) 90
+ * T ctl,lmt (default) 80
+ */
+
+/* Control TDP Settings */
+#define CTL_TDP_SENSOR_ID 0 /* EC TIN0 */
+
+/* Temperature which OS will shutdown at */
+#define CRITICAL_TEMPERATURE 94
+
+/* Temperature which OS will throttle CPU */
+#define PASSIVE_TEMPERATURE 85
+
+#endif