amd/bettong: Enable fan control

1. Use enable_imc_thermal_zone to enable fan control.
2. The ACPI method ITZE works on Ubuntu 14.04 and Windows 7
but does not work on Windows 8, so I didn't use it.
After this issue is fixed, I'll add ACPI_ENABLE_THERMAL_ZONE
in bettong/Kconfig.
3. Fan control works on Bettong. I used "APU Validation Toolkit"
to test on Windows 8. This tool can put load to APU. The fan's
behaviour is just like bettong/fchec.c defined. When the temperature
is 40 Celsius, the fan start to run.

Change-Id: I0fc22974a7a7cf3f6bdf5f1c66be95219a177e12
Signed-off-by: WANG Siyuan <wangsiyuanbuaa@gmail.com>
Signed-off-by: WANG Siyuan <SiYuan.Wang@amd.com>
Reviewed-on: http://review.coreboot.org/10721
Tested-by: build bot (Jenkins)
Reviewed-by: Marc Jones <marc.jones@se-eng.com>

1 files changed, 67 insertions, 0 deletions

diff --git a/src/mainboard/amd/bettong/fchec.c b/src/mainboard/amd/bettong/fchec.c
new file mode 100644
index 0000000000..3458f9b2b6
--- /dev/null
+++ b/src/mainboard/amd/bettong/fchec.c
@@ -0,0 +1,67 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2015 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc.
+ */
+
+#include "fchec.h"
+
+void agesawrapper_fchecfancontrolservice()
+{
+	FCH_DATA_BLOCK LateParams;
+
+	/* Thermal Zone Parameter */
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg0 = 0x00;
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg1 = 0x00; /* Zone */
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg2 = 0x3d;
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg3 = 0xc6;
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg4 = 0x00;
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg5 = 0x04;
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg6 = 0x98; /* SMBUS Address for SMBUS based temperature sensor such as SB-TSI and ADM1032 */
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg7 = 0x01;
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg8 = 0x01; /* PWM steping rate in unit of PWM level percentage */
+	LateParams.Imc.EcStruct.MsgFun81Zone0MsgReg9 = 0x00;
+
+	/* IMC Fan Policy temperature thresholds */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg0 = 0x00;
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg1 = 0x00; /* Zone */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg2 = 0x3c; /*AC0 threshold in Celsius */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg3 = 0x28; /*AC1 threshold in Celsius */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg4 = 0xff; /*AC2 threshold in Celsius */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg5 = 0xff; /*AC3 threshold in Celsius, 0xFF is not define */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg6 = 0xff; /*AC4 threshold in Celsius, 0xFF is not define */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg7 = 0xff; /*AC5 threshold in Celsius, 0xFF is not define */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg8 = 0xff; /*AC6 threshold in Celsius, 0xFF is not define */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgReg9 = 0xff; /*AC7 lowest threshold in Celsius, 0xFF is not define */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgRegA = 0x4b; /*critical threshold* in Celsius, 0xFF is not define */
+	LateParams.Imc.EcStruct.MsgFun83Zone0MsgRegB = 0x00;
+
+	/* IMC Fan Policy PWM Settings */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg0 = 0x00;
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg1 = 0x00; /* Zone */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg2 = 0x50; /* AL0 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg3 = 0x32; /* AL1 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg4 = 0xff; /* AL2 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg5 = 0xff; /* AL3 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg6 = 0xff; /* AL4 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg7 = 0xff; /* AL5 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg8 = 0xff; /* AL6 percentage */
+	LateParams.Imc.EcStruct.MsgFun85Zone0MsgReg9 = 0xff; /* AL7 percentage */
+
+	LateParams.Imc.EcStruct.IMCFUNSupportBitMap = 0x111;
+
+	FchECfancontrolservice(&LateParams);
+}