src/superio/via/vt1211/vt1211.c

   1 /*
   2  * (C) Copyright 2004 Nick Barker <nick.barker9@btinternet.com>
   3  *
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation; either version 2 of
   8  * the License, or (at your option) any later version.
   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  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  18  * MA 02111-1307 USA
  19  */
  20
  21  /* vt1211 routines and defines*/
  22
  23
  24 #include <arch/io.h>
  25 #include <device/device.h>
  26 #include <device/pci.h>
  27 #include <device/pci_ops.h>
  28 #include <device/pci_ids.h>
  29 #include <console/console.h>
  30 #include "vt1211.h"
  31 #include "chip.h"
  32
  33
  34 static unsigned char vt1211hwmonitorinits[]={
  35  0x10,0x3, 0x11,0x10, 0x12,0xd, 0x13,0x7f,
  36  0x14,0x21, 0x15,0x81, 0x16,0xbd, 0x17,0x8a,
  37  0x18,0x0, 0x19,0x0, 0x1a,0x0, 0x1b,0x0,
  38  0x1d,0xff, 0x1e,0x0, 0x1f,0x73, 0x20,0x67,
  39  0x21,0xc1, 0x22,0xca, 0x23,0x74, 0x24,0xc2,
  40  0x25,0xc7, 0x26,0xc9, 0x27,0x7f, 0x29,0x0,
  41  0x2a,0x0, 0x2b,0xff, 0x2c,0x0, 0x2d,0xff,
  42  0x2e,0x0, 0x2f,0xff, 0x30,0x0, 0x31,0xff,
  43  0x32,0x0, 0x33,0xff, 0x34,0x0, 0x39,0xff,
  44  0x3a,0x0, 0x3b,0xff, 0x3c,0xff, 0x3d,0xff,
  45  0x3e,0x0, 0x3f,0xb0, 0x43,0xff, 0x44,0xff,
  46  0x46,0xff, 0x47,0x50, 0x4a,0x3, 0x4b,0xc0,
  47  0x4c,0x0, 0x4d,0x0, 0x4e,0xf, 0x5d,0x77,
  48  0x5c,0x0, 0x5f,0x33, 0x40,0x1};
  49
  50 static void start_conf_pnp(int dev)
  51 {
  52         outb(0x87,0x2e);
  53         outb(0x87,0x2e);
  54         outb(7,0x2e);
  55         outb(dev,0x2f);
  56 }
  57 static void write_pnp(int reg, int val)
  58 {
  59         outb(reg,0x2e);
  60         outb(val,0x2f);
  61 }
  62 static void end_conf_pnp()
  63 {
  64         outb(0xaa,0x2e);
  65 }
  66
  67 static void vt1211_init(struct superio_via_vt1211_config *conf)
  68 {
  69
  70         int i;
  71         // Activate the vt1211 hardware monitor
  72         if(conf->enable_hwmon){
  73                 start_conf_pnp(0x0b);
  74                 write_pnp(0x60,0xec);
  75                 write_pnp(0x30,1);
  76                 end_conf_pnp();
  77
  78                 // initialize vt1211 hardware monitor registers, which are at 0xECXX
  79                 for(i=0;i<sizeof(vt1211hwmonitorinits);i+=2)
  80                         outb(vt1211hwmonitorinits[i+1],0xec00+vt1211hwmonitorinits[i]);
  81         }
  82         if( conf->enable_fdc){
  83                 // activate FDC
  84                 start_conf_pnp(0); // fdc is device 0
  85                 write_pnp(0x60,0xfc); // io address
  86                 write_pnp(0x70,0x06); // interupt
  87                 write_pnp(0x74,0x02); // dma
  88                 write_pnp(0x30,0x01); // activate it
  89                 end_conf_pnp();
  90         }
  91
  92         if( conf->enable_com_ports ){
  93                 // activate com2
  94                 start_conf_pnp(3);
  95                 write_pnp(0x60,0xbe);
  96                 write_pnp(0x70,0x3);
  97                 write_pnp(0xf0,0x02);
  98                 write_pnp(0x30,0x01);
  99                 end_conf_pnp();
 100         }
 101
 102         if( conf->enable_lpt ){
 103                 // activate lpt
 104                 start_conf_pnp(1);
 105                 write_pnp(0x60,0xde);
 106                 write_pnp(0x70,0x07);
 107                 write_pnp(0x74,0x3);
 108                 write_pnp(0x30,0x01);
 109                 end_conf_pnp();
 110         }
 111
 112 }
 113
 114 static void superio_init(struct chip *chip, enum chip_pass pass)
 115 {
 116
 117         struct superio_via_vt1211_config *conf =
 118                 (struct superio_via_vt1211_config *)chip->chip_info;
 119
 120         switch (pass) {
 121         case CONF_PASS_PRE_PCI:
 122                 break;
 123
 124         case CONF_PASS_POST_PCI:
 125                 vt1211_init(conf);
 126                 break;
 127
 128         case CONF_PASS_PRE_BOOT:
 129                 break;
 130
 131         default:
 132                 /* nothing yet */
 133                 break;
 134         }
 135 }
 136
 137 static void enumerate(struct chip *chip)
 138 {
 139         extern struct device_operations default_pci_ops_bus;
 140         chip_enumerate(chip);
 141         chip->dev->ops = &default_pci_ops_bus;
 142 }
 143
 144 struct chip_control superio_via_vt1211_control = {
 145         .enumerate = enumerate,
 146         .enable    = superio_init,
 147         .name      = "VIA vt1211"
 148 };