src/mainboard/packardbell/ms2290/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
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of
   9  * 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/ibexpeak/nvs.h"
  21 #include "southbridge/intel/ibexpeak/pch.h"
  22 #include "southbridge/intel/ibexpeak/me.h"
  23 #include <northbridge/intel/nehalem/nehalem.h>
  24 #include <cpu/intel/model_2065x/model_2065x.h>
  25 #include <ec/acpi/ec.h>
  26 #include <pc80/mc146818rtc.h>
  27 #include <delay.h>
  28
  29 static void mainboard_smm_init(void)
  30 {
  31         printk(BIOS_DEBUG, "initializing SMI\n");
  32 }
  33
  34 int mainboard_io_trap_handler(int smif)
  35 {
  36         static int smm_initialized;
  37
  38         if (!smm_initialized) {
  39                 mainboard_smm_init();
  40                 smm_initialized = 1;
  41         }
  42
  43         switch (smif) {
  44
  45         default:
  46                 return 0;
  47         }
  48
  49         /* On success, the IO Trap Handler returns 1
  50          * On failure, the IO Trap Handler returns a value != 1 */
  51         return 1;
  52 }
  53
  54 void mainboard_smi_gpi(u32 gpi_sts)
  55 {
  56 }
  57
  58 static int mainboard_finalized = 0;
  59
  60 int mainboard_smi_apmc(u8 data)
  61 {
  62         u8 tmp;
  63         switch (data) {
  64         case APM_CNT_FINALIZE:
  65                 printk(BIOS_DEBUG, "APMC: FINALIZE\n");
  66                 if (mainboard_finalized) {
  67                         printk(BIOS_DEBUG, "APMC#: Already finalized\n");
  68                         return 0;
  69                 }
  70
  71                 intel_me_finalize_smm();
  72                 intel_pch_finalize_smm();
  73                 intel_nehalem_finalize_smm();
  74                 intel_model_2065x_finalize_smm();
  75
  76                 mainboard_finalized = 1;
  77                 break;
  78         case APM_CNT_ACPI_ENABLE:
  79                 tmp = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xbb);
  80                 tmp &= ~0x03;
  81                 tmp |= 0x02;
  82                 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xbb, tmp);
  83                 break;
  84         case APM_CNT_ACPI_DISABLE:
  85                 tmp = pci_read_config8(PCI_DEV(0, 0x1f, 0), 0xbb);
  86                 tmp &= ~0x03;
  87                 tmp |= 0x01;
  88                 pci_write_config8(PCI_DEV(0, 0x1f, 0), 0xbb, tmp);
  89                 break;
  90         default:
  91                 break;
  92         }
  93         return 0;
  94 }