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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>
Tejun Heo5a0e3ad2010-03-24 17:04:11 +090029#include <linux/gfp.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070030#include <linux/pci.h>
31#include <linux/init.h>
32#include <linux/blkdev.h>
33#include <linux/delay.h>
34#include <linux/interrupt.h>
Jeff Garzika9524a72005-10-30 14:39:11 -050035#include <linux/device.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070036#include <scsi/scsi_host.h>
37#include <linux/libata.h>
38
39#define DRV_NAME "sata_uli"
Jeff Garzik2a3103c2007-08-31 04:54:06 -040040#define DRV_VERSION "1.3"
Linus Torvalds1da177e2005-04-16 15:20:36 -070041
42enum {
43 uli_5289 = 0,
44 uli_5287 = 1,
45 uli_5281 = 2,
46
Jeff Garzik50106c52006-03-23 00:14:36 -050047 uli_max_ports = 4,
48
Linus Torvalds1da177e2005-04-16 15:20:36 -070049 /* PCI configuration registers */
50 ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
51 ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
52 ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
53 ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
54};
55
Jeff Garzik50106c52006-03-23 00:14:36 -050056struct uli_priv {
57 unsigned int scr_cfg_addr[uli_max_ports];
58};
59
Jeff Garzik5796d1c2007-10-26 00:03:37 -040060static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
Tejun Heo82ef04f2008-07-31 17:02:40 +090061static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
62static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
Linus Torvalds1da177e2005-04-16 15:20:36 -070063
Jeff Garzik3b7d6972005-11-10 11:04:11 -050064static const struct pci_device_id uli_pci_tbl[] = {
Jeff Garzik54bb3a942006-09-27 22:20:11 -040065 { PCI_VDEVICE(AL, 0x5289), uli_5289 },
66 { PCI_VDEVICE(AL, 0x5287), uli_5287 },
67 { PCI_VDEVICE(AL, 0x5281), uli_5281 },
68
Linus Torvalds1da177e2005-04-16 15:20:36 -070069 { } /* terminate list */
70};
71
Linus Torvalds1da177e2005-04-16 15:20:36 -070072static struct pci_driver uli_pci_driver = {
73 .name = DRV_NAME,
74 .id_table = uli_pci_tbl,
75 .probe = uli_init_one,
76 .remove = ata_pci_remove_one,
77};
78
Jeff Garzik193515d2005-11-07 00:59:37 -050079static struct scsi_host_template uli_sht = {
Tejun Heo68d1d072008-03-25 12:22:49 +090080 ATA_BMDMA_SHT(DRV_NAME),
Linus Torvalds1da177e2005-04-16 15:20:36 -070081};
82
Tejun Heo029cfd62008-03-25 12:22:49 +090083static struct ata_port_operations uli_ops = {
84 .inherits = &ata_bmdma_port_ops,
Linus Torvalds1da177e2005-04-16 15:20:36 -070085 .scr_read = uli_scr_read,
86 .scr_write = uli_scr_write,
Tejun Heo70a31432008-06-21 16:07:32 +090087 .hardreset = ATA_OP_NULL,
Linus Torvalds1da177e2005-04-16 15:20:36 -070088};
89
Tejun Heo1626aeb2007-05-04 12:43:58 +020090static const struct ata_port_info uli_port_info = {
Sergei Shtylyov9cbe0562011-02-04 22:05:48 +030091 .flags = ATA_FLAG_SATA | ATA_FLAG_IGN_SIMPLEX,
Erik Inge Bolsø14bdef92009-03-14 21:38:24 +010092 .pio_mask = ATA_PIO4,
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
Tejun Heo82ef04f2008-07-31 17:02:40 +0900110static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700111{
Tejun Heo82ef04f2008-07-31 17:02:40 +0900112 struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
113 unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700114 u32 val;
115
116 pci_read_config_dword(pdev, cfg_addr, &val);
117 return val;
118}
119
Tejun Heo82ef04f2008-07-31 17:02:40 +0900120static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121{
Tejun Heo82ef04f2008-07-31 17:02:40 +0900122 struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
123 unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700124
125 pci_write_config_dword(pdev, cfg_addr, val);
126}
127
Tejun Heo82ef04f2008-07-31 17:02:40 +0900128static int uli_scr_read(struct ata_link *link, 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 Heo82ef04f2008-07-31 17:02:40 +0900133 *val = uli_scr_cfg_read(link, sc_reg);
Tejun Heoda3dbb12007-07-16 14:29:40 +0900134 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135}
136
Tejun Heo82ef04f2008-07-31 17:02:40 +0900137static int uli_scr_write(struct ata_link *link, 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
Tejun Heo82ef04f2008-07-31 17:02:40 +0900142 uli_scr_cfg_write(link, 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{
Tejun Heo9a829cc2007-04-17 23:44:08 +0900148 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 unsigned int board_idx = (unsigned int) ent->driver_data;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900150 struct ata_host *host;
Jeff Garzik50106c52006-03-23 00:14:36 -0500151 struct uli_priv *hpriv;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900152 void __iomem * const *iomap;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900153 struct ata_ioports *ioaddr;
154 int n_ports, rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155
Joe Perches06296a12011-04-15 15:52:00 -0700156 ata_print_version_once(&pdev->dev, DRV_VERSION);
Jeff Garzika9524a72005-10-30 14:39:11 -0500157
Tejun Heo24dc5f32007-01-20 16:00:28 +0900158 rc = pcim_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 if (rc)
160 return rc;
161
Tejun Heo9a829cc2007-04-17 23:44:08 +0900162 n_ports = 2;
163 if (board_idx == uli_5287)
164 n_ports = 4;
Tejun Heo1626aeb2007-05-04 12:43:58 +0200165
166 /* allocate the host */
167 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
168 if (!host)
169 return -ENOMEM;
Jeff Garzik8a60a072005-07-31 13:13:24 -0400170
Tejun Heo24dc5f32007-01-20 16:00:28 +0900171 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
172 if (!hpriv)
173 return -ENOMEM;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900174 host->private_data = hpriv;
Jeff Garzik50106c52006-03-23 00:14:36 -0500175
Tejun Heo1626aeb2007-05-04 12:43:58 +0200176 /* the first two ports are standard SFF */
Tejun Heo9363c382008-04-07 22:47:16 +0900177 rc = ata_pci_sff_init_host(host);
Tejun Heo1626aeb2007-05-04 12:43:58 +0200178 if (rc)
179 return rc;
180
Tejun Heoc7087652010-05-10 21:41:34 +0200181 ata_pci_bmdma_init(host);
Tejun Heo1626aeb2007-05-04 12:43:58 +0200182
Tejun Heo9a829cc2007-04-17 23:44:08 +0900183 iomap = host->iomap;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900184
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 switch (board_idx) {
186 case uli_5287:
Tejun Heo1626aeb2007-05-04 12:43:58 +0200187 /* If there are four, the last two live right after
188 * the standard SFF ports.
189 */
Jeff Garzik50106c52006-03-23 00:14:36 -0500190 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
191 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
Tejun Heo9a829cc2007-04-17 23:44:08 +0900193 ioaddr = &host->ports[2]->ioaddr;
194 ioaddr->cmd_addr = iomap[0] + 8;
195 ioaddr->altstatus_addr =
196 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900197 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900198 ioaddr->bmdma_addr = iomap[4] + 16;
Jeff Garzik50106c52006-03-23 00:14:36 -0500199 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
Tejun Heo9363c382008-04-07 22:47:16 +0900200 ata_sff_std_ports(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700201
Tejun Heocbcdd872007-08-18 13:14:55 +0900202 ata_port_desc(host->ports[2],
203 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
204 (unsigned long long)pci_resource_start(pdev, 0) + 8,
205 ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
206 (unsigned long long)pci_resource_start(pdev, 4) + 16);
207
Tejun Heo9a829cc2007-04-17 23:44:08 +0900208 ioaddr = &host->ports[3]->ioaddr;
209 ioaddr->cmd_addr = iomap[2] + 8;
210 ioaddr->altstatus_addr =
211 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900212 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900213 ioaddr->bmdma_addr = iomap[4] + 24;
Jeff Garzik50106c52006-03-23 00:14:36 -0500214 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
Tejun Heo9363c382008-04-07 22:47:16 +0900215 ata_sff_std_ports(ioaddr);
Tejun Heocbcdd872007-08-18 13:14:55 +0900216
217 ata_port_desc(host->ports[2],
218 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
219 (unsigned long long)pci_resource_start(pdev, 2) + 9,
220 ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
221 (unsigned long long)pci_resource_start(pdev, 4) + 24);
222
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223 break;
224
225 case uli_5289:
Jeff Garzik50106c52006-03-23 00:14:36 -0500226 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
227 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700228 break;
229
230 case uli_5281:
Jeff Garzik50106c52006-03-23 00:14:36 -0500231 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
232 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 break;
234
235 default:
236 BUG();
237 break;
238 }
239
240 pci_set_master(pdev);
Brett M Russa04ce0f2005-08-15 15:23:41 -0400241 pci_intx(pdev, 1);
Tejun Heoc3b28892010-05-19 22:10:21 +0200242 return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
Tejun Heo9363c382008-04-07 22:47:16 +0900243 IRQF_SHARED, &uli_sht);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700244}
245
246static int __init uli_init(void)
247{
Pavel Roskinb7887192006-08-10 18:13:18 +0900248 return pci_register_driver(&uli_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700249}
250
251static void __exit uli_exit(void)
252{
253 pci_unregister_driver(&uli_pci_driver);
254}
255
256
257module_init(uli_init);
258module_exit(uli_exit);