From 9fd7c0f18ee8665f2e4dc311ae906412f2b0a0a1 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Thu, 16 Jan 2014 09:47:39 -0800 Subject: baytrail: Add SOC thermal settings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Apply the SOC thermal settings from DPTF reference code for SdpProfile=4 and adjust graphics PUNIT setting to match. BUG=chrome-os-partner:17279 BRANCH=baytrail TEST=boot on rambi and check for valid GPU power values from DPTF Change-Id: I59fc4b75b52084ebcc4c0556563afca0585ea6b8 Signed-off-by: Duncan Laurie Reviewed-on: https://chromium-review.googlesource.com/182786 Reviewed-by: Aaron Durbin Signed-off-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/5052 Tested-by: build bot (Jenkins) Reviewed-by: Stefan Reinauer Reviewed-by: Kyösti Mälkki --- src/soc/intel/baytrail/dptf.c | 54 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 54 insertions(+) create mode 100644 src/soc/intel/baytrail/dptf.c (limited to 'src/soc/intel/baytrail/dptf.c') diff --git a/src/soc/intel/baytrail/dptf.c b/src/soc/intel/baytrail/dptf.c new file mode 100644 index 0000000000..691e220abc --- /dev/null +++ b/src/soc/intel/baytrail/dptf.c @@ -0,0 +1,54 @@ +/* + * 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. + * + * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include +#include +#include +#include +#include +#include + +static const struct reg_script dptf_init_settings[] = { + /* SocThermInit */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PTMC, 0x00030708), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_GFXT, 0x0000C000), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_VEDT, 0x00000004), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_ISPT, 0x00000004), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_PTPS, 90 << 24), /* Tj_max=90C */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_TE_AUX3, 0x00061029), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_TTE_VRIccMax, 0x00061029), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_TTE_VRHot, 0x00061029), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_TTE_XXPROCHOT, 0x00061029), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_TTE_SLM0, 0x00001029), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_TTE_SLM1, 0x00001029), + /* ratio 10 = 1333mhz for 2.5W fanless */ + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_SOC_POWER_BUDGET, 0x00000A00), + REG_IOSF_WRITE(IOSF_PORT_PMC, PUNIT_SOC_ENERGY_CREDIT, 0x00000002), + REG_SCRIPT_END, +}; + +static void dptf_init(void *unused) +{ + printk(BIOS_DEBUG, "Applying SOC Thermal settings for DPTF.\n"); + reg_script_run(dptf_init_settings); +} + +BOOT_STATE_INIT_ENTRIES(dptf_init_bscb) = { + BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_ENTRY, dptf_init, NULL), +}; -- cgit v1.2.3