src/mainboard/google/stout/mainboard.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/device.h>
   4 #include <device/pci_ops.h>
   5 #include <drivers/intel/gma/int15.h>
   6 #include <acpi/acpi.h>
   7 #include <southbridge/intel/bd82x6x/pch.h>
   8 #include <ec/quanta/it8518/ec.h>
   9
  10 #include "ec.h"
  11 #include "onboard.h"
  12
  13 void mainboard_suspend_resume(void)
  14 {
  15         /* Stout EC needs to be put back in ACPI mode */
  16         ec_write_cmd(EC_CMD_NOTIFY_ACPI_ENTER);
  17 }
  18
  19 static void mainboard_init(struct device *dev)
  20 {
  21         struct device *ethernet_dev = NULL;
  22
  23         /* Initialize the Embedded Controller */
  24         stout_ec_init();
  25
  26         /*
  27          * Battery life time - LAN PCIe should enter ASPM L1 to save
  28          * power when LAN connection is idle.
  29          * enable CLKREQ: LAN pci config space 0x81h=01
  30          */
  31         ethernet_dev = dev_find_device(STOUT_NIC_VENDOR_ID,
  32                                        STOUT_NIC_DEVICE_ID, dev);
  33
  34         if (ethernet_dev != NULL)
  35                 pci_write_config8(ethernet_dev, 0x81, 0x01);
  36 }
  37
  38 static void mainboard_enable(struct device *dev)
  39 {
  40         dev->ops->init = mainboard_init;
  41         install_intel_vga_int15_handler(GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, GMA_INT15_BOOT_DISPLAY_DEFAULT, 0);
  42 }
  43
  44 struct chip_operations mainboard_ops = {
  45         .enable_dev = mainboard_enable,
  46 };