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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 Garzik8bc3fc42007-05-21 20:26:38 -040039#define DRV_VERSION "1.2"
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
Linus Torvalds1da177e2005-04-16 15:20:36 -070059static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
60static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
61static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
62
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 = {
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 .port_disable = ata_port_disable,
98
99 .tf_load = ata_tf_load,
100 .tf_read = ata_tf_read,
101 .check_status = ata_check_status,
102 .exec_command = ata_exec_command,
103 .dev_select = ata_std_dev_select,
104
Linus Torvalds1da177e2005-04-16 15:20:36 -0700105 .bmdma_setup = ata_bmdma_setup,
106 .bmdma_start = ata_bmdma_start,
107 .bmdma_stop = ata_bmdma_stop,
108 .bmdma_status = ata_bmdma_status,
109 .qc_prep = ata_qc_prep,
110 .qc_issue = ata_qc_issue_prot,
Tejun Heo0d5ff562007-02-01 15:06:36 +0900111 .data_xfer = ata_data_xfer,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700112
Tejun Heod7a80da2006-06-16 15:00:18 +0900113 .freeze = ata_bmdma_freeze,
114 .thaw = ata_bmdma_thaw,
115 .error_handler = ata_bmdma_error_handler,
116 .post_internal_cmd = ata_bmdma_post_internal_cmd,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700117
Linus Torvalds1da177e2005-04-16 15:20:36 -0700118 .irq_clear = ata_bmdma_irq_clear,
Akira Iguchi246ce3b2007-01-26 16:27:58 +0900119 .irq_on = ata_irq_on,
120 .irq_ack = ata_irq_ack,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700121
122 .scr_read = uli_scr_read,
123 .scr_write = uli_scr_write,
124
125 .port_start = ata_port_start,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700126};
127
Tejun Heo1626aeb2007-05-04 12:43:58 +0200128static const struct ata_port_info uli_port_info = {
Tejun Heob2a8bbe2007-01-25 19:40:05 +0900129 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
130 ATA_FLAG_IGN_SIMPLEX,
Brett Russ7da79312005-09-01 21:53:34 -0400131 .pio_mask = 0x1f, /* pio0-4 */
Jeff Garzikbf6263a2007-07-09 12:16:50 -0400132 .udma_mask = ATA_UDMA6,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133 .port_ops = &uli_ops,
134};
135
136
137MODULE_AUTHOR("Peer Chen");
138MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
139MODULE_LICENSE("GPL");
140MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
141MODULE_VERSION(DRV_VERSION);
142
143static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
144{
Jeff Garzikcca39742006-08-24 03:19:22 -0400145 struct uli_priv *hpriv = ap->host->private_data;
Jeff Garzik50106c52006-03-23 00:14:36 -0500146 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700147}
148
149static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
150{
Jeff Garzikcca39742006-08-24 03:19:22 -0400151 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
153 u32 val;
154
155 pci_read_config_dword(pdev, cfg_addr, &val);
156 return val;
157}
158
159static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
160{
Jeff Garzikcca39742006-08-24 03:19:22 -0400161 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700162 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
163
164 pci_write_config_dword(pdev, cfg_addr, val);
165}
166
167static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
168{
169 if (sc_reg > SCR_CONTROL)
170 return 0xffffffffU;
171
172 return uli_scr_cfg_read(ap, sc_reg);
173}
174
175static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
176{
177 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
178 return;
179
180 uli_scr_cfg_write(ap, sc_reg, val);
181}
182
Linus Torvalds1da177e2005-04-16 15:20:36 -0700183static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
184{
Jeff Garzika9524a72005-10-30 14:39:11 -0500185 static int printed_version;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900186 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
Linus Torvalds1da177e2005-04-16 15:20:36 -0700187 unsigned int board_idx = (unsigned int) ent->driver_data;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900188 struct ata_host *host;
Jeff Garzik50106c52006-03-23 00:14:36 -0500189 struct uli_priv *hpriv;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900190 void __iomem * const *iomap;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900191 struct ata_ioports *ioaddr;
192 int n_ports, rc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700193
Jeff Garzika9524a72005-10-30 14:39:11 -0500194 if (!printed_version++)
195 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
196
Tejun Heo24dc5f32007-01-20 16:00:28 +0900197 rc = pcim_enable_device(pdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 if (rc)
199 return rc;
200
Tejun Heo9a829cc2007-04-17 23:44:08 +0900201 n_ports = 2;
202 if (board_idx == uli_5287)
203 n_ports = 4;
Tejun Heo1626aeb2007-05-04 12:43:58 +0200204
205 /* allocate the host */
206 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
207 if (!host)
208 return -ENOMEM;
Jeff Garzik8a60a072005-07-31 13:13:24 -0400209
Tejun Heo24dc5f32007-01-20 16:00:28 +0900210 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
211 if (!hpriv)
212 return -ENOMEM;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900213 host->private_data = hpriv;
Jeff Garzik50106c52006-03-23 00:14:36 -0500214
Tejun Heo1626aeb2007-05-04 12:43:58 +0200215 /* the first two ports are standard SFF */
Tejun Heod583bc12007-07-04 18:02:07 +0900216 rc = ata_pci_init_sff_host(host);
Tejun Heo1626aeb2007-05-04 12:43:58 +0200217 if (rc)
218 return rc;
219
220 rc = ata_pci_init_bmdma(host);
221 if (rc)
222 return rc;
223
Tejun Heo9a829cc2007-04-17 23:44:08 +0900224 iomap = host->iomap;
Tejun Heo0d5ff562007-02-01 15:06:36 +0900225
Linus Torvalds1da177e2005-04-16 15:20:36 -0700226 switch (board_idx) {
227 case uli_5287:
Tejun Heo1626aeb2007-05-04 12:43:58 +0200228 /* If there are four, the last two live right after
229 * the standard SFF ports.
230 */
Jeff Garzik50106c52006-03-23 00:14:36 -0500231 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
232 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233
Tejun Heo9a829cc2007-04-17 23:44:08 +0900234 ioaddr = &host->ports[2]->ioaddr;
235 ioaddr->cmd_addr = iomap[0] + 8;
236 ioaddr->altstatus_addr =
237 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900238 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900239 ioaddr->bmdma_addr = iomap[4] + 16;
Jeff Garzik50106c52006-03-23 00:14:36 -0500240 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900241 ata_std_ports(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700242
Tejun Heo9a829cc2007-04-17 23:44:08 +0900243 ioaddr = &host->ports[3]->ioaddr;
244 ioaddr->cmd_addr = iomap[2] + 8;
245 ioaddr->altstatus_addr =
246 ioaddr->ctl_addr = (void __iomem *)
Tejun Heo0d5ff562007-02-01 15:06:36 +0900247 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900248 ioaddr->bmdma_addr = iomap[4] + 24;
Jeff Garzik50106c52006-03-23 00:14:36 -0500249 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
Tejun Heo9a829cc2007-04-17 23:44:08 +0900250 ata_std_ports(ioaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700251 break;
252
253 case uli_5289:
Jeff Garzik50106c52006-03-23 00:14:36 -0500254 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
255 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256 break;
257
258 case uli_5281:
Jeff Garzik50106c52006-03-23 00:14:36 -0500259 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
260 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700261 break;
262
263 default:
264 BUG();
265 break;
266 }
267
268 pci_set_master(pdev);
Brett M Russa04ce0f2005-08-15 15:23:41 -0400269 pci_intx(pdev, 1);
Tejun Heo9a829cc2007-04-17 23:44:08 +0900270 return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
271 &uli_sht);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272}
273
274static int __init uli_init(void)
275{
Pavel Roskinb7887192006-08-10 18:13:18 +0900276 return pci_register_driver(&uli_pci_driver);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700277}
278
279static void __exit uli_exit(void)
280{
281 pci_unregister_driver(&uli_pci_driver);
282}
283
284
285module_init(uli_init);
286module_exit(uli_exit);