src/superio/nsc/pc97307/superio.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2000 AG Electronics Ltd.
   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; either version 2 of the License, or
   9  * (at your option) any later version.
  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  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <arch/io.h>
  22 #include <console/console.h>
  23 #include <device/device.h>
  24 #include <device/pnp.h>
  25 #include <stdlib.h>
  26 #include "chip.h"
  27 #include "pc97307.h"
  28
  29 static void init(device_t dev)
  30 {
  31         struct superio_nsc_pc97307_config *conf = dev->chip_info;
  32         u8 reg8;
  33
  34         if (!dev->enabled)
  35                 return;
  36
  37         switch(dev->path.pnp.device) {
  38         case PC97307_KBCK:
  39                 pnp_set_logical_device(dev);
  40                 pnp_set_enable(dev, 0);            /* Disable keyboard */
  41                 pnp_write_config(dev, 0xf0, 0x40); /* Set KBC clock to 8 MHz. */
  42                 pnp_set_enable(dev, 1);            /* Enable keyboard. */
  43                 pc_keyboard_init(&conf->keyboard);
  44                 break;
  45         case PC97307_FDC:
  46                 /* Set up floppy in PS/2 mode. */
  47                 outb(0x09, SIO_CONFIG_RA);
  48                 reg8 = inb(SIO_CONFIG_RD);
  49                 reg8 = (reg8 & 0x3F) | 0x40;
  50                 outb(reg8, SIO_CONFIG_RD);
  51                 outb(reg8, SIO_CONFIG_RD); /* Have to write twice to change! */
  52                 break;
  53         default:
  54                 break;
  55         }
  56 }
  57
  58 static struct device_operations ops = {
  59         .read_resources   = pnp_read_resources,
  60         .set_resources    = pnp_set_resources,
  61         .enable_resources = pnp_enable_resources,
  62         .enable           = pnp_enable,
  63         .init             = init,
  64 };
  65
  66 static struct pnp_info pnp_dev_info[] = {
  67         { &ops, PC97307_KBCK, PNP_IO0 | PNP_IO1 | PNP_IRQ0, {0x0ffb, 0}, {0x0ffb, 4}, },
  68         { &ops, PC97307_KBCM, PNP_IRQ0, },
  69         { &ops, PC97307_RTC,  PNP_IO0 | PNP_IRQ0, {0xfffe, 0}, },
  70         { &ops, PC97307_FDC,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0xfffa, 0}, },
  71         { &ops, PC97307_PP,   PNP_IO0 | PNP_IRQ0 | PNP_DRQ0, {0x03fc, 0}, },
  72         { &ops, PC97307_SP2,  PNP_IO0 | PNP_IRQ0 | PNP_DRQ0 | PNP_DRQ1, {0xfff8, 0}, },
  73         { &ops, PC97307_SP1,  PNP_IO0 | PNP_IRQ0, {0xfff8, 0}, },
  74         { &ops, PC97307_GPIO, PNP_IO0, {0xfff8, 0}, },
  75         { &ops, PC97307_PM,   PNP_IO0, {0xfffe, 0}, },
  76 };
  77
  78 static void enable_dev(struct device *dev)
  79 {
  80         pnp_enable_devices(dev, &ops, ARRAY_SIZE(pnp_dev_info), pnp_dev_info);
  81 }
  82
  83 struct chip_operations superio_nsc_pc97307_ops = {
  84         CHIP_NAME("NSC PC97307 Super I/O")
  85         .enable_dev = enable_dev,
  86 };