2 * This file is part of the coreboot project.
4 * Copyright (C) 2000 AG Electronics Ltd.
5 * Copyright (C) 2003-2004 Linux Networx
6 * Copyright (C) 2004 Tyan by yhlu
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
23 #include <arch/romcc_io.h>
26 static void pc87417_disable_dev(device_t dev)
28 pnp_set_logical_device(dev);
29 pnp_set_enable(dev, 0);
32 static void pc87417_enable_dev(device_t dev, unsigned iobase)
34 pnp_set_logical_device(dev);
35 pnp_set_enable(dev, 0);
36 pnp_set_iobase(dev, PNP_IDX_IO0, iobase);
37 pnp_set_enable(dev, 1);
40 static void xbus_cfg(device_t dev)
45 pnp_set_logical_device(dev);
46 /* select proper BIOS size (4MB) */
47 pnp_write_config(dev, PC87417_XMEMCNF2, (pnp_read_config(dev, PC87417_XMEMCNF2)) | 0x04);
48 xbus_index = pnp_read_iobase(dev, 0x60);
50 /* enable writes to devices attached to XCS0 (XBUS Chip Select 0) */
51 for (i=0; i<= 0xf; i++) {
52 outb((i<<4), xbus_index + PC87417_HAP0);