diff options
Diffstat (limited to 'src/mainboard/google')
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 |