2 * sata_uli.c - ULi Electronics SATA
5 * 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)
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.
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.
20 * libata documentation is available via 'make {ps|pdf}docs',
21 * as Documentation/DocBook/libata.*
23 * Hardware documentation available under NDA.
27 #include <linux/kernel.h>
28 #include <linux/module.h>
29 #include <linux/gfp.h>
30 #include <linux/pci.h>
31 #include <linux/init.h>
32 #include <linux/blkdev.h>
33 #include <linux/delay.h>
34 #include <linux/interrupt.h>
35 #include <linux/device.h>
36 #include <scsi/scsi_host.h>
37 #include <linux/libata.h>
39 #define DRV_NAME "sata_uli"
40 #define DRV_VERSION "1.3"
49 /* 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 */
57 unsigned int scr_cfg_addr[uli_max_ports];
60 static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
61 static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val);
62 static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val);
64 static const struct pci_device_id uli_pci_tbl[] = {
65 { PCI_VDEVICE(AL, 0x5289), uli_5289 },
66 { PCI_VDEVICE(AL, 0x5287), uli_5287 },
67 { PCI_VDEVICE(AL, 0x5281), uli_5281 },
69 { } /* terminate list */
72 static struct pci_driver uli_pci_driver = {
74 .id_table = uli_pci_tbl,
75 .probe = uli_init_one,
76 .remove = ata_pci_remove_one,
79 static struct scsi_host_template uli_sht = {
80 ATA_BMDMA_SHT(DRV_NAME),
83 static struct ata_port_operations uli_ops = {
84 .inherits = &ata_bmdma_port_ops,
85 .scr_read = uli_scr_read,
86 .scr_write = uli_scr_write,
87 .hardreset = ATA_OP_NULL,
90 static const struct ata_port_info uli_port_info = {
91 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
94 .udma_mask = ATA_UDMA6,
99 MODULE_AUTHOR("Peer Chen");
100 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
101 MODULE_LICENSE("GPL");
102 MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
103 MODULE_VERSION(DRV_VERSION);
105 static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
107 struct uli_priv *hpriv = ap->host->private_data;
108 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
111 static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg)
113 struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
114 unsigned int cfg_addr = get_scr_cfg_addr(link->ap, sc_reg);
117 pci_read_config_dword(pdev, cfg_addr, &val);
121 static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val)
123 struct pci_dev *pdev = to_pci_dev(link->ap->host->dev);
124 unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr);
126 pci_write_config_dword(pdev, cfg_addr, val);
129 static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val)
131 if (sc_reg > SCR_CONTROL)
134 *val = uli_scr_cfg_read(link, sc_reg);
138 static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val)
140 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
143 uli_scr_cfg_write(link, sc_reg, val);
147 static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
149 static int printed_version;
150 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
151 unsigned int board_idx = (unsigned int) ent->driver_data;
152 struct ata_host *host;
153 struct uli_priv *hpriv;
154 void __iomem * const *iomap;
155 struct ata_ioports *ioaddr;
158 if (!printed_version++)
159 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
161 rc = pcim_enable_device(pdev);
166 if (board_idx == uli_5287)
169 /* allocate the host */
170 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
174 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
177 host->private_data = hpriv;
179 /* the first two ports are standard SFF */
180 rc = ata_pci_sff_init_host(host);
184 ata_pci_bmdma_init(host);
190 /* If there are four, the last two live right after
191 * the standard SFF ports.
193 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
194 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
196 ioaddr = &host->ports[2]->ioaddr;
197 ioaddr->cmd_addr = iomap[0] + 8;
198 ioaddr->altstatus_addr =
199 ioaddr->ctl_addr = (void __iomem *)
200 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
201 ioaddr->bmdma_addr = iomap[4] + 16;
202 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
203 ata_sff_std_ports(ioaddr);
205 ata_port_desc(host->ports[2],
206 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
207 (unsigned long long)pci_resource_start(pdev, 0) + 8,
208 ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
209 (unsigned long long)pci_resource_start(pdev, 4) + 16);
211 ioaddr = &host->ports[3]->ioaddr;
212 ioaddr->cmd_addr = iomap[2] + 8;
213 ioaddr->altstatus_addr =
214 ioaddr->ctl_addr = (void __iomem *)
215 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
216 ioaddr->bmdma_addr = iomap[4] + 24;
217 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
218 ata_sff_std_ports(ioaddr);
220 ata_port_desc(host->ports[2],
221 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
222 (unsigned long long)pci_resource_start(pdev, 2) + 9,
223 ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
224 (unsigned long long)pci_resource_start(pdev, 4) + 24);
229 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
230 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
234 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
235 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
243 pci_set_master(pdev);
245 return ata_host_activate(host, pdev->irq, ata_bmdma_interrupt,
246 IRQF_SHARED, &uli_sht);
249 static int __init uli_init(void)
251 return pci_register_driver(&uli_pci_driver);
254 static void __exit uli_exit(void)
256 pci_unregister_driver(&uli_pci_driver);
260 module_init(uli_init);
261 module_exit(uli_exit);