src/mainboard/intel/cougar_canyon2/mainboard_smi.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2008-2009 coresystems GmbH
   5  * Copyright (C) 2013 Sage Electronic Engineering, LLC.
   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 <arch/io.h>
  18 #include <console/console.h>
  19 #include <cpu/x86/smm.h>
  20 #include <southbridge/intel/fsp_bd82x6x/nvs.h>
  21 #include <southbridge/intel/fsp_bd82x6x/pch.h>
  22 #include <southbridge/intel/fsp_bd82x6x/me.h>
  23 #include <northbridge/intel/fsp_sandybridge/sandybridge.h>
  24 #include <cpu/intel/fsp_model_206ax/model_206ax.h>
  25
  26 /*
  27  * Change LED_POWER# (SIO GPIO 45) state based on sleep type.
  28  * The IO address is hardcoded as we don't have device path in SMM.
  29  */
  30 #define SIO_GPIO_BASE_SET4      (0x730 + 3)
  31 #define SIO_GPIO_BLINK_GPIO45   0x25
  32 void mainboard_smi_sleep(u8 slp_typ)
  33 {
  34         u8 reg8;
  35
  36         switch (slp_typ) {
  37         case SLP_TYP_S3:
  38         case SLP_TYP_S4:
  39                 break;
  40
  41         case SLP_TYP_S5:
  42                 /* Turn off LED */
  43                 reg8 = inb(SIO_GPIO_BASE_SET4);
  44                 reg8 |= (1 << 5);
  45                 outb(reg8, SIO_GPIO_BASE_SET4);
  46                 break;
  47         }
  48 }
  49
  50
  51 static int mainboard_finalized = 0;
  52
  53 int mainboard_smi_apmc(u8 apmc)
  54 {
  55         switch (apmc) {
  56         case APM_CNT_FINALIZE:
  57                 if (mainboard_finalized) {
  58                         printk(BIOS_DEBUG, "SMI#: Already finalized\n");
  59                         return 0;
  60                 }
  61
  62                 intel_me_finalize_smm();
  63                 intel_pch_finalize_smm();
  64                 intel_sandybridge_finalize_smm();
  65                 intel_model_206ax_finalize_smm();
  66
  67                 mainboard_finalized = 1;
  68                 break;
  69         }
  70         return 0;
  71 }