1*4882a593Smuzhiyun // SPDX-License-Identifier: GPL-2.0-only
2*4882a593Smuzhiyun #include <linux/kernel.h>
3*4882a593Smuzhiyun #include <linux/export.h>
4*4882a593Smuzhiyun #include <linux/ide.h>
5*4882a593Smuzhiyun
ide_legacy_init_one(struct ide_hw ** hws,struct ide_hw * hw,u8 port_no,const struct ide_port_info * d,unsigned long config)6*4882a593Smuzhiyun static void ide_legacy_init_one(struct ide_hw **hws, struct ide_hw *hw,
7*4882a593Smuzhiyun u8 port_no, const struct ide_port_info *d,
8*4882a593Smuzhiyun unsigned long config)
9*4882a593Smuzhiyun {
10*4882a593Smuzhiyun unsigned long base, ctl;
11*4882a593Smuzhiyun int irq;
12*4882a593Smuzhiyun
13*4882a593Smuzhiyun if (port_no == 0) {
14*4882a593Smuzhiyun base = 0x1f0;
15*4882a593Smuzhiyun ctl = 0x3f6;
16*4882a593Smuzhiyun irq = 14;
17*4882a593Smuzhiyun } else {
18*4882a593Smuzhiyun base = 0x170;
19*4882a593Smuzhiyun ctl = 0x376;
20*4882a593Smuzhiyun irq = 15;
21*4882a593Smuzhiyun }
22*4882a593Smuzhiyun
23*4882a593Smuzhiyun if (!request_region(base, 8, d->name)) {
24*4882a593Smuzhiyun printk(KERN_ERR "%s: I/O resource 0x%lX-0x%lX not free.\n",
25*4882a593Smuzhiyun d->name, base, base + 7);
26*4882a593Smuzhiyun return;
27*4882a593Smuzhiyun }
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun if (!request_region(ctl, 1, d->name)) {
30*4882a593Smuzhiyun printk(KERN_ERR "%s: I/O resource 0x%lX not free.\n",
31*4882a593Smuzhiyun d->name, ctl);
32*4882a593Smuzhiyun release_region(base, 8);
33*4882a593Smuzhiyun return;
34*4882a593Smuzhiyun }
35*4882a593Smuzhiyun
36*4882a593Smuzhiyun ide_std_init_ports(hw, base, ctl);
37*4882a593Smuzhiyun hw->irq = irq;
38*4882a593Smuzhiyun hw->config = config;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun hws[port_no] = hw;
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
ide_legacy_device_add(const struct ide_port_info * d,unsigned long config)43*4882a593Smuzhiyun int ide_legacy_device_add(const struct ide_port_info *d, unsigned long config)
44*4882a593Smuzhiyun {
45*4882a593Smuzhiyun struct ide_hw hw[2], *hws[] = { NULL, NULL };
46*4882a593Smuzhiyun
47*4882a593Smuzhiyun memset(&hw, 0, sizeof(hw));
48*4882a593Smuzhiyun
49*4882a593Smuzhiyun if ((d->host_flags & IDE_HFLAG_QD_2ND_PORT) == 0)
50*4882a593Smuzhiyun ide_legacy_init_one(hws, &hw[0], 0, d, config);
51*4882a593Smuzhiyun ide_legacy_init_one(hws, &hw[1], 1, d, config);
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun if (hws[0] == NULL && hws[1] == NULL &&
54*4882a593Smuzhiyun (d->host_flags & IDE_HFLAG_SINGLE))
55*4882a593Smuzhiyun return -ENOENT;
56*4882a593Smuzhiyun
57*4882a593Smuzhiyun return ide_host_add(d, hws, 2, NULL);
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun EXPORT_SYMBOL_GPL(ide_legacy_device_add);
60