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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 Garzik54bb3a92006-09-27 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 = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070079 .module = THIS_MODULE,
80 .name = DRV_NAME,
81 .ioctl = ata_scsi_ioctl,
82 .queuecommand = ata_scsi_queuecmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -070083 .can_queue = ATA_DEF_QUEUE,
84 .this_id = ATA_SHT_THIS_ID,
85 .sg_tablesize = LIBATA_MAX_PRD,
Linus Torvalds1da177e2005-04-16 15:20:36 -070086 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
87 .emulated = ATA_SHT_EMULATED,
88 .use_clustering = ATA_SHT_USE_CLUSTERING,
89 .proc_name = DRV_NAME,
90 .dma_boundary = ATA_DMA_BOUNDARY,
91 .slave_configure = ata_scsi_slave_config,
Tejun Heoccf68c32006-05-31 18:28:09 +090092 .slave_destroy = ata_scsi_slave_destroy,
Linus Torvalds1da177e2005-04-16 15:20:36 -070093 .bios_param = ata_std_bios_param,
Linus Torvalds1da177e2005-04-16 15:20:36 -070094};
95
Jeff Garzik057ace52005-10-22 14:27:05 -040096static const struct ata_port_operations uli_ops = {
Linus Torvalds1da177e2005-04-16 15:20:36 -070097 .tf_load = ata_tf_load,
98 .tf_read = ata_tf_read,
99 .check_status = ata_check_status,
100 .exec_command = ata_exec_command,
101 .dev_select = ata_std_dev_select,
102
Linus Torvalds1da177e2005-04-16 15:20:36 -0700103 .bmdma_setup = ata_bmdma_setup,
104 .bmdma_start = ata_bmdma_start,
105 .bmdma_stop = ata_bmdma_stop,
106 .bmdma_status = ata_bmdma_status,
107 .qc_prep = ata_qc_prep,
108 .qc_issue = ata_qc_issue_prot,
Tejun Heo0d5ff562007-02-01 15:06:36 +0900109 .data_xfer = ata_data_xfer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700110
Tejun Heod7a80da2006-06-16 15:00:18 +0900111 .freeze = ata_bmdma_freeze,
112 .thaw = ata_bmdma_thaw,
113 .error_handler = ata_bmdma_error_handler,
114 .post_internal_cmd = ata_bmdma_post_internal_cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700115
Linus Torvalds1da177e2005-04-16 15:20:36 -0700116 .irq_clear = ata_bmdma_irq_clear,
Akira Iguchi246ce3b2007-01-26 16:27:58 +0900117 .irq_on = ata_irq_on,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118
119 .scr_read = uli_scr_read,
120 .scr_write = uli_scr_write,
121
122 .port_start = ata_port_start,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700123};
124
Tejun Heo1626aeb2007-05-04 12:43:58 +0200125static const struct ata_port_info uli_port_info = {
Tejun Heob2a8bbe2007-01-25 19:40:05 +0900126 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
127 ATA_FLAG_IGN_SIMPLEX,
Brett Russ7da79312005-09-01 21:53:34 -0400128 .pio_mask = 0x1f, /* pio0-4 */
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400129 .udma_mask = ATA_UDMA6,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700130 .port_ops = &uli_ops,
131};
132
133
134MODULE_AUTHOR("Peer Chen");
135MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
136MODULE_LICENSE("GPL");
137MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
138MODULE_VERSION(DRV_VERSION);
139
140static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
141{
Jeff Garzikcca39742006-08-24 03:19:22 -0400142 struct uli_priv *hpriv = ap->host->private_data;
Jeff Garzik50106c52006-03-23 00:14:36 -0500143 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700144}
145
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400146static u32 uli_scr_cfg_read(struct ata_port *ap, unsigned int sc_reg)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147{
Jeff Garzikcca39742006-08-24 03:19:22 -0400148 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700149 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
150 u32 val;
151
152 pci_read_config_dword(pdev, cfg_addr, &val);
153 return val;
154}
155
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400156static void uli_scr_cfg_write(struct ata_port *ap, unsigned int scr, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700157{
Jeff Garzikcca39742006-08-24 03:19:22 -0400158 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700159 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
160
161 pci_write_config_dword(pdev, cfg_addr, val);
162}
163
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400164static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700165{
166 if (sc_reg > SCR_CONTROL)
Tejun Heoda3dbb12007-07-16 14:29:40 +0900167 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700168
Tejun Heoda3dbb12007-07-16 14:29:40 +0900169 *val = uli_scr_cfg_read(ap, sc_reg);
170 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171}
172
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400173static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174{
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400175 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
Tejun Heoda3dbb12007-07-16 14:29:40 +0900176 return -EINVAL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700177
178 uli_scr_cfg_write(ap, sc_reg, val);
Tejun Heoda3dbb12007-07-16 14:29:40 +0900179 return 0;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700180}
181
Jeff Garzik5796d1c2007-10-26 00:03:37 -0400182static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183{
Jeff Garzika9524a72005-10-30 14:39:11 -0500184 static int printed_version;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900185 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700186 unsigned int board_idx = (unsigned int) ent->driver_data;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900187 struct ata_host *host;
Jeff Garzik50106c52006-03-23 00:14:36 -0500188 struct uli_priv *hpriv;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900189 void __iomem * const *iomap;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900190 struct ata_ioports *ioaddr;
191 int n_ports, rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
Jeff Garzika9524a72005-10-30 14:39:11 -0500193 if (!printed_version++)
194 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
195
Tejun Heo24dc5f32007-01-20 16:00:28 +0900196 rc = pcim_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700197 if (rc)
198 return rc;
199
Tejun Heo9a829cc2007-04-17 23:44:08 +0900200 n_ports = 2;
201 if (board_idx == uli_5287)
202 n_ports = 4;
Tejun Heo1626aeb2007-05-04 12:43:58 +0200203
204 /* allocate the host */
205 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
206 if (!host)
207 return -ENOMEM;
Jeff Garzik8a60a072005-07-31 13:13:24 -0400208
Tejun Heo24dc5f32007-01-20 16:00:28 +0900209 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
210 if (!hpriv)
211 return -ENOMEM;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900212 host->private_data = hpriv;
Jeff Garzik50106c52006-03-23 00:14:36 -0500213
Tejun Heo1626aeb2007-05-04 12:43:58 +0200214 /* the first two ports are standard SFF */
Tejun Heod583bc12007-07-04 18:02:07 +0900215 rc = ata_pci_init_sff_host(host);
Tejun Heo1626aeb2007-05-04 12:43:58 +0200216 if (rc)
217 return rc;
218
219 rc = ata_pci_init_bmdma(host);
220 if (rc)
221 return rc;
222
Tejun Heo9a829cc2007-04-17 23:44:08 +0900223 iomap = host->iomap;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900224
Linus Torvalds1da177e2005-04-16 15:20:36 -0700225 switch (board_idx) {
226 case uli_5287:
Tejun Heo1626aeb2007-05-04 12:43:58 +0200227 /* If there are four, the last two live right after
228 * the standard SFF ports.
229 */
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
Tejun Heo9a829cc2007-04-17 23:44:08 +0900233 ioaddr = &host->ports[2]->ioaddr;
234 ioaddr->cmd_addr = iomap[0] + 8;
235 ioaddr->altstatus_addr =
236 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900237 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900238 ioaddr->bmdma_addr = iomap[4] + 16;
Jeff Garzik50106c52006-03-23 00:14:36 -0500239 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900240 ata_std_ports(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241
Tejun Heocbcdd872007-08-18 13:14:55 +0900242 ata_port_desc(host->ports[2],
243 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
244 (unsigned long long)pci_resource_start(pdev, 0) + 8,
245 ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
246 (unsigned long long)pci_resource_start(pdev, 4) + 16);
247
Tejun Heo9a829cc2007-04-17 23:44:08 +0900248 ioaddr = &host->ports[3]->ioaddr;
249 ioaddr->cmd_addr = iomap[2] + 8;
250 ioaddr->altstatus_addr =
251 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900252 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900253 ioaddr->bmdma_addr = iomap[4] + 24;
Jeff Garzik50106c52006-03-23 00:14:36 -0500254 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900255 ata_std_ports(ioaddr);
Tejun Heocbcdd872007-08-18 13:14:55 +0900256
257 ata_port_desc(host->ports[2],
258 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
259 (unsigned long long)pci_resource_start(pdev, 2) + 9,
260 ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
261 (unsigned long long)pci_resource_start(pdev, 4) + 24);
262
Linus Torvalds1da177e2005-04-16 15:20:36 -0700263 break;
264
265 case uli_5289:
Jeff Garzik50106c52006-03-23 00:14:36 -0500266 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
267 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268 break;
269
270 case uli_5281:
Jeff Garzik50106c52006-03-23 00:14:36 -0500271 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
272 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700273 break;
274
275 default:
276 BUG();
277 break;
278 }
279
280 pci_set_master(pdev);
Brett M Russa04ce0f2005-08-15 15:23:41 -0400281 pci_intx(pdev, 1);
Tejun Heo9a829cc2007-04-17 23:44:08 +0900282 return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
283 &uli_sht);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700284}
285
286static int __init uli_init(void)
287{
Pavel Roskinb7887192006-08-10 18:13:18 +0900288 return pci_register_driver(&uli_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700289}
290
291static void __exit uli_exit(void)
292{
293 pci_unregister_driver(&uli_pci_driver);
294}
295
296
297module_init(uli_init);
298module_exit(uli_exit);