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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/*
2 * sata_uli.c - ULi Electronics SATA
3 *
Linus Torvalds1da177e2005-04-16 15:20:36 -07004 *
Jeff Garzikaf36d7f2005-08-28 20:18:39 -04005 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2, or (at your option)
8 * 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; see the file COPYING. If not, write to
17 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
18 *
19 *
20 * libata documentation is available via 'make {ps|pdf}docs',
21 * as Documentation/DocBook/libata.*
22 *
23 * Hardware documentation available under NDA.
Linus Torvalds1da177e2005-04-16 15:20:36 -070024 *
25 */
26
Linus Torvalds1da177e2005-04-16 15:20:36 -070027#include <linux/kernel.h>
28#include <linux/module.h>
29#include <linux/pci.h>
30#include <linux/init.h>
31#include <linux/blkdev.h>
32#include <linux/delay.h>
33#include <linux/interrupt.h>
Jeff Garzika9524a72005-10-30 14:39:11 -050034#include <linux/device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070035#include <scsi/scsi_host.h>
36#include <linux/libata.h>
37
38#define DRV_NAME "sata_uli"
Jeff Garzik2a3103c2007-08-31 04:54:06 -040039#define DRV_VERSION "1.3"
Linus Torvalds1da177e2005-04-16 15:20:36 -070040
41enum {
42 uli_5289 = 0,
43 uli_5287 = 1,
44 uli_5281 = 2,
45
Jeff Garzik50106c52006-03-23 00:14:36 -050046 uli_max_ports = 4,
47
Linus Torvalds1da177e2005-04-16 15:20:36 -070048 /* PCI configuration registers */
49 ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
50 ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
51 ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
52 ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
53};
54
Jeff Garzik50106c52006-03-23 00:14:36 -050055struct uli_priv {
56 unsigned int scr_cfg_addr[uli_max_ports];
57};
58
Jeff Garzik5796d1c2007-10-26 00:03:37 -040059static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
60static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
61static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
Linus Torvalds1da177e2005-04-16 15:20:36 -070062
Jeff Garzik3b7d6972005-11-10 11:04:11 -050063static const struct pci_device_id uli_pci_tbl[] = {
Jeff Garzik54bb3a942006-09-27 22:20:11 -040064 { PCI_VDEVICE(AL, 0x5289), uli_5289 },
65 { PCI_VDEVICE(AL, 0x5287), uli_5287 },
66 { PCI_VDEVICE(AL, 0x5281), uli_5281 },
67
Linus Torvalds1da177e2005-04-16 15:20:36 -070068 { } /* terminate list */
69};
70
Linus Torvalds1da177e2005-04-16 15:20:36 -070071static struct pci_driver uli_pci_driver = {
72 .name = DRV_NAME,
73 .id_table = uli_pci_tbl,
74 .probe = uli_init_one,
75 .remove = ata_pci_remove_one,
76};
77
Jeff Garzik193515d2005-11-07 00:59:37 -050078static struct scsi_host_template uli_sht = {
Tejun Heo68d1d072008-03-25 12:22:49 +090079 ATA_BMDMA_SHT(DRV_NAME),
Linus Torvalds1da177e2005-04-16 15:20:36 -070080};
81
Tejun Heo029cfd62008-03-25 12:22:49 +090082static struct ata_port_operations uli_ops = {
83 .inherits = &ata_bmdma_port_ops,
Linus Torvalds1da177e2005-04-16 15:20:36 -070084 .scr_read = uli_scr_read,
85 .scr_write = uli_scr_write,
Tejun Heo70a31432008-06-21 16:07:32 +090086 .hardreset = ATA_OP_NULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -070087};
88
Tejun Heo1626aeb2007-05-04 12:43:58 +020089static const struct ata_port_info uli_port_info = {
Tejun Heob2a8bbe2007-01-25 19:40:05 +090090 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
91 ATA_FLAG_IGN_SIMPLEX,
Brett Russ7da79312005-09-01 21:53:34 -040092 .pio_mask = 0x1f, /* pio0-4 */
Jeff Garzikbf6263a2007-07-09 12:16:50 -040093 .udma_mask = ATA_UDMA6,
Linus Torvalds1da177e2005-04-16 15:20:36 -070094 .port_ops = &uli_ops,
95};
96
97
98MODULE_AUTHOR("Peer Chen");
99MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
100MODULE_LICENSE("GPL");
101MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
102MODULE_VERSION(DRV_VERSION);
103
104static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
105{
Jeff Garzikcca39742006-08-24 03:19:22 -0400106 struct uli_priv *hpriv = ap->host->private_data;
Jeff Garzik50106c52006-03-23 00:14:36 -0500107 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700108}
109
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400110static u32 uli_scr_cfg_read(struct ata_port *ap, unsigned int sc_reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111{
Jeff Garzikcca39742006-08-24 03:19:22 -0400112 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700113 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
114 u32 val;
115
116 pci_read_config_dword(pdev, cfg_addr, &val);
117 return val;
118}
119
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400120static void uli_scr_cfg_write(struct ata_port *ap, unsigned int scr, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121{
Jeff Garzikcca39742006-08-24 03:19:22 -0400122 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
124
125 pci_write_config_dword(pdev, cfg_addr, val);
126}
127
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400128static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700129{
130 if (sc_reg > SCR_CONTROL)
Tejun Heoda3dbb12007-07-16 14:29:40 +0900131 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700132
Tejun Heoda3dbb12007-07-16 14:29:40 +0900133 *val = uli_scr_cfg_read(ap, sc_reg);
134 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135}
136
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400137static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700138{
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400139 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
Tejun Heoda3dbb12007-07-16 14:29:40 +0900140 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141
142 uli_scr_cfg_write(ap, sc_reg, val);
Tejun Heoda3dbb12007-07-16 14:29:40 +0900143 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144}
145
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400146static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147{
Jeff Garzika9524a72005-10-30 14:39:11 -0500148 static int printed_version;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900149 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 unsigned int board_idx = (unsigned int) ent->driver_data;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900151 struct ata_host *host;
Jeff Garzik50106c52006-03-23 00:14:36 -0500152 struct uli_priv *hpriv;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900153 void __iomem * const *iomap;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900154 struct ata_ioports *ioaddr;
155 int n_ports, rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700156
Jeff Garzika9524a72005-10-30 14:39:11 -0500157 if (!printed_version++)
158 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
159
Tejun Heo24dc5f32007-01-20 16:00:28 +0900160 rc = pcim_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700161 if (rc)
162 return rc;
163
Tejun Heo9a829cc2007-04-17 23:44:08 +0900164 n_ports = 2;
165 if (board_idx == uli_5287)
166 n_ports = 4;
Tejun Heo1626aeb2007-05-04 12:43:58 +0200167
168 /* allocate the host */
169 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
170 if (!host)
171 return -ENOMEM;
Jeff Garzik8a60a072005-07-31 13:13:24 -0400172
Tejun Heo24dc5f32007-01-20 16:00:28 +0900173 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
174 if (!hpriv)
175 return -ENOMEM;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900176 host->private_data = hpriv;
Jeff Garzik50106c52006-03-23 00:14:36 -0500177
Tejun Heo1626aeb2007-05-04 12:43:58 +0200178 /* the first two ports are standard SFF */
Tejun Heo9363c382008-04-07 22:47:16 +0900179 rc = ata_pci_sff_init_host(host);
Tejun Heo1626aeb2007-05-04 12:43:58 +0200180 if (rc)
181 return rc;
182
Tejun Heo9363c382008-04-07 22:47:16 +0900183 rc = ata_pci_bmdma_init(host);
Tejun Heo1626aeb2007-05-04 12:43:58 +0200184 if (rc)
185 return rc;
186
Tejun Heo9a829cc2007-04-17 23:44:08 +0900187 iomap = host->iomap;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 switch (board_idx) {
190 case uli_5287:
Tejun Heo1626aeb2007-05-04 12:43:58 +0200191 /* If there are four, the last two live right after
192 * the standard SFF ports.
193 */
Jeff Garzik50106c52006-03-23 00:14:36 -0500194 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
195 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700196
Tejun Heo9a829cc2007-04-17 23:44:08 +0900197 ioaddr = &host->ports[2]->ioaddr;
198 ioaddr->cmd_addr = iomap[0] + 8;
199 ioaddr->altstatus_addr =
200 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900201 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900202 ioaddr->bmdma_addr = iomap[4] + 16;
Jeff Garzik50106c52006-03-23 00:14:36 -0500203 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
Tejun Heo9363c382008-04-07 22:47:16 +0900204 ata_sff_std_ports(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700205
Tejun Heocbcdd872007-08-18 13:14:55 +0900206 ata_port_desc(host->ports[2],
207 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
208 (unsigned long long)pci_resource_start(pdev, 0) + 8,
209 ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
210 (unsigned long long)pci_resource_start(pdev, 4) + 16);
211
Tejun Heo9a829cc2007-04-17 23:44:08 +0900212 ioaddr = &host->ports[3]->ioaddr;
213 ioaddr->cmd_addr = iomap[2] + 8;
214 ioaddr->altstatus_addr =
215 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900216 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900217 ioaddr->bmdma_addr = iomap[4] + 24;
Jeff Garzik50106c52006-03-23 00:14:36 -0500218 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
Tejun Heo9363c382008-04-07 22:47:16 +0900219 ata_sff_std_ports(ioaddr);
Tejun Heocbcdd872007-08-18 13:14:55 +0900220
221 ata_port_desc(host->ports[2],
222 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
223 (unsigned long long)pci_resource_start(pdev, 2) + 9,
224 ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
225 (unsigned long long)pci_resource_start(pdev, 4) + 24);
226
Linus Torvalds1da177e2005-04-16 15:20:36 -0700227 break;
228
229 case uli_5289:
Jeff Garzik50106c52006-03-23 00:14:36 -0500230 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
231 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700232 break;
233
234 case uli_5281:
Jeff Garzik50106c52006-03-23 00:14:36 -0500235 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
236 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237 break;
238
239 default:
240 BUG();
241 break;
242 }
243
244 pci_set_master(pdev);
Brett M Russa04ce0f2005-08-15 15:23:41 -0400245 pci_intx(pdev, 1);
Tejun Heo9363c382008-04-07 22:47:16 +0900246 return ata_host_activate(host, pdev->irq, ata_sff_interrupt,
247 IRQF_SHARED, &uli_sht);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700248}
249
250static int __init uli_init(void)
251{
Pavel Roskinb7887192006-08-10 18:13:18 +0900252 return pci_register_driver(&uli_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700253}
254
255static void __exit uli_exit(void)
256{
257 pci_unregister_driver(&uli_pci_driver);
258}
259
260
261module_init(uli_init);
262module_exit(uli_exit);