src/mainboard/intel/emeraldlake2/smihandler.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2008-2009 coresystems GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; version 2 of the License.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #include <arch/io.h>
  17 #include <console/console.h>
  18 #include <cpu/x86/smm.h>
  19 #include <southbridge/intel/bd82x6x/nvs.h>
  20 #include <southbridge/intel/bd82x6x/pch.h>
  21 #include <southbridge/intel/bd82x6x/me.h>
  22 #include <northbridge/intel/sandybridge/sandybridge.h>
  23 #include <cpu/intel/model_206ax/model_206ax.h>
  24
  25 /*
  26  * Change LED_POWER# (SIO GPIO 45) state based on sleep type.
  27  * The IO address is hardcoded as we don't have device path in SMM.
  28  */
  29 #define SIO_GPIO_BASE_SET4      (0x730 + 3)
  30 #define SIO_GPIO_BLINK_GPIO45   0x25
  31 void mainboard_smi_sleep(u8 slp_typ)
  32 {
  33         u8 reg8;
  34
  35         switch (slp_typ) {
  36         case 3:
  37         case 4:
  38                 break;
  39
  40         case 5:
  41                 /* Turn off LED */
  42                 reg8 = inb(SIO_GPIO_BASE_SET4);
  43                 reg8 |= (1 << 5);
  44                 outb(reg8, SIO_GPIO_BASE_SET4);
  45                 break;
  46         }
  47 }