src/mainboard/google/stout/mainboard.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007-2009 coresystems GmbH
   5  * Copyright (C) 2011 Google Inc.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; version 2 of the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <types.h>
  18 #include <string.h>
  19 #include <device/device.h>
  20 #include <device/pci_def.h>
  21 #include <device/pci_ops.h>
  22 #include <console/console.h>
  23 #include <drivers/intel/gma/int15.h>
  24 #include <pc80/mc146818rtc.h>
  25 #include <arch/acpi.h>
  26 #include <arch/io.h>
  27 #include <arch/interrupt.h>
  28 #include <boot/coreboot_tables.h>
  29 #include "onboard.h"
  30 #include "ec.h"
  31 #include <southbridge/intel/bd82x6x/pch.h>
  32 #include <smbios.h>
  33 #include <device/pci.h>
  34 #include <ec/quanta/it8518/ec.h>
  35
  36 void mainboard_suspend_resume(void)
  37 {
  38         /* Stout EC needs to be put back in ACPI mode */
  39         ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
  40 }
  41
  42
  43
  44 static void mainboard_init(device_t dev)
  45 {
  46         struct device *ethernet_dev = NULL;
  47
  48         /* Initialize the Embedded Controller */
  49         stout_ec_init();
  50
  51         /*
  52          * Battery life time - LAN PCIe should enter ASPM L1 to save
  53          * power when LAN connection is idle.
  54          * enable CLKREQ: LAN pci config space 0x81h=01
  55          */
  56         ethernet_dev = dev_find_device(STOUT_NIC_VENDOR_ID,
  57                                        STOUT_NIC_DEVICE_ID, dev);
  58
  59         if (ethernet_dev != NULL)
  60                 pci_write_config8(ethernet_dev, 0x81, 0x01);
  61 }
  62
  63 // mainboard_enable is executed as first thing after
  64 // enumerate_buses().
  65
  66 static void mainboard_enable(device_t dev)
  67 {
  68         dev->ops->init = mainboard_init;
  69         install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, GMA_INT15_BOOT_DISPLAY_DEFAULT, 0);
  70 }
  71
  72 struct chip_operations mainboard_ops = {
  73         .enable_dev = mainboard_enable,
  74 };