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 <device/device.h>
  19 #include <device/pci_ops.h>
  20 #include <drivers/intel/gma/int15.h>
  21 #include <arch/acpi.h>
  22 #include <southbridge/intel/bd82x6x/pch.h>
  23 #include <device/pci.h>
  24 #include <ec/quanta/it8518/ec.h>
  25 #include <vendorcode/google/chromeos/chromeos.h>
  26
  27 #include "ec.h"
  28 #include "onboard.h"
  29
  30 void mainboard_suspend_resume(void)
  31 {
  32         /* Stout EC needs to be put back in ACPI mode */
  33         ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
  34 }
  35
  36
  37
  38 static void mainboard_init(struct device *dev)
  39 {
  40         struct device *ethernet_dev = NULL;
  41
  42         /* Initialize the Embedded Controller */
  43         stout_ec_init();
  44
  45         /*
  46          * Battery life time - LAN PCIe should enter ASPM L1 to save
  47          * power when LAN connection is idle.
  48          * enable CLKREQ: LAN pci config space 0x81h=01
  49          */
  50         ethernet_dev = dev_find_device(STOUT_NIC_VENDOR_ID,
  51                                        STOUT_NIC_DEVICE_ID, dev);
  52
  53         if (ethernet_dev != NULL)
  54                 pci_write_config8(ethernet_dev, 0x81, 0x01);
  55 }
  56
  57 // mainboard_enable is executed as first thing after
  58 // enumerate_buses().
  59
  60 static void mainboard_enable(struct device *dev)
  61 {
  62         dev->ops->init = mainboard_init;
  63         dev->ops->acpi_inject_dsdt_generator = chromeos_dsdt_generator;
  64         install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, GMA_INT15_BOOT_DISPLAY_DEFAULT, 0);
  65 }
  66
  67 struct chip_operations mainboard_ops = {
  68         .enable_dev = mainboard_enable,
  69 };