src/mainboard/samsung/stumpy/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 /* FIXME: Include romstage serial for SIO helper functions */
  26 #include <superio/ite/it8772f/early_init.c>
  27 //#include <superio/ite/it8772f/it8772f.h>
  28 #define DUMMY_DEV PNP_DEV(0x2e, 0)
  29
  30 /*
  31  * Change LED_POWER# (SIO GPIO 45) state based on sleep type.
  32  * The IO address is hardcoded as we don't have device path in SMM.
  33  */
  34 #define SIO_GPIO_BASE_SET4      (0x730 + 3)
  35 #define SIO_GPIO_BLINK_GPIO45   0x25
  36 void mainboard_smi_sleep(u8 slp_typ)
  37 {
  38         u8 reg8;
  39
  40         switch (slp_typ) {
  41         case 3:
  42         case 4:
  43                 /* Blink LED */
  44                 it8772f_enter_conf(DUMMY_DEV);
  45                 it8772f_sio_write(DUMMY_DEV, IT8772F_CONFIG_REG_LDN, IT8772F_GPIO);
  46                 /* Enable blink pin map */
  47                 it8772f_sio_write(DUMMY_DEV, IT8772F_GPIO_LED_BLINK1_PINMAP,
  48                                   SIO_GPIO_BLINK_GPIO45);
  49                 /* Enable 4HZ blink */
  50                 it8772f_sio_write(DUMMY_DEV, IT8772F_GPIO_LED_BLINK1_CONTROL, 0x02);
  51                 /* Set GPIO to alternate function */
  52                 reg8 = it8772f_sio_read(DUMMY_DEV, GPIO_REG_ENABLE(3));
  53                 reg8 &= ~(1 << 5);
  54                 it8772f_sio_write(DUMMY_DEV, GPIO_REG_ENABLE(3), reg8);
  55                 it8772f_exit_conf(DUMMY_DEV);
  56                 break;
  57
  58         case 5:
  59                 /* Turn off LED */
  60                 reg8 = inb(SIO_GPIO_BASE_SET4);
  61                 reg8 |= (1 << 5);
  62                 outb(reg8, SIO_GPIO_BASE_SET4);
  63                 break;
  64         }
  65 }