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/pci.h>
30 #include <linux/init.h>
31 #include <linux/blkdev.h>
32 #include <linux/delay.h>
33 #include <linux/interrupt.h>
34 #include <linux/device.h>
35 #include <scsi/scsi_host.h>
36 #include <linux/libata.h>
38 #define DRV_NAME "sata_uli"
39 #define DRV_VERSION "1.3"
48 /* 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 */
56 unsigned int scr_cfg_addr[uli_max_ports];
59 static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
60 static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
61 static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
63 static const struct pci_device_id uli_pci_tbl[] = {
64 { PCI_VDEVICE(AL, 0x5289), uli_5289 },
65 { PCI_VDEVICE(AL, 0x5287), uli_5287 },
66 { PCI_VDEVICE(AL, 0x5281), uli_5281 },
68 { } /* terminate list */
71 static struct pci_driver uli_pci_driver = {
73 .id_table = uli_pci_tbl,
74 .probe = uli_init_one,
75 .remove = ata_pci_remove_one,
78 static struct scsi_host_template uli_sht = {
79 ATA_BMDMA_SHT(DRV_NAME),
82 static const struct ata_port_operations uli_ops = {
83 .tf_load = ata_tf_load,
84 .tf_read = ata_tf_read,
85 .check_status = ata_check_status,
86 .exec_command = ata_exec_command,
87 .dev_select = ata_std_dev_select,
89 .bmdma_setup = ata_bmdma_setup,
90 .bmdma_start = ata_bmdma_start,
91 .bmdma_stop = ata_bmdma_stop,
92 .bmdma_status = ata_bmdma_status,
93 .qc_prep = ata_qc_prep,
94 .qc_issue = ata_qc_issue_prot,
95 .data_xfer = ata_data_xfer,
97 .mode_filter = ata_pci_default_filter,
98 .freeze = ata_bmdma_freeze,
99 .thaw = ata_bmdma_thaw,
100 .error_handler = ata_bmdma_error_handler,
101 .post_internal_cmd = ata_bmdma_post_internal_cmd,
103 .irq_clear = ata_bmdma_irq_clear,
104 .irq_on = ata_irq_on,
106 .scr_read = uli_scr_read,
107 .scr_write = uli_scr_write,
109 .port_start = ata_sff_port_start,
112 static const struct ata_port_info uli_port_info = {
113 .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
114 ATA_FLAG_IGN_SIMPLEX,
115 .pio_mask = 0x1f, /* pio0-4 */
116 .udma_mask = ATA_UDMA6,
117 .port_ops = &uli_ops,
121 MODULE_AUTHOR("Peer Chen");
122 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
123 MODULE_LICENSE("GPL");
124 MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
125 MODULE_VERSION(DRV_VERSION);
127 static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
129 struct uli_priv *hpriv = ap->host->private_data;
130 return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg);
133 static u32 uli_scr_cfg_read(struct ata_port *ap, unsigned int sc_reg)
135 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
136 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
139 pci_read_config_dword(pdev, cfg_addr, &val);
143 static void uli_scr_cfg_write(struct ata_port *ap, unsigned int scr, u32 val)
145 struct pci_dev *pdev = to_pci_dev(ap->host->dev);
146 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
148 pci_write_config_dword(pdev, cfg_addr, val);
151 static int uli_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val)
153 if (sc_reg > SCR_CONTROL)
156 *val = uli_scr_cfg_read(ap, sc_reg);
160 static int uli_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val)
162 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
165 uli_scr_cfg_write(ap, sc_reg, val);
169 static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
171 static int printed_version;
172 const struct ata_port_info *ppi[] = { &uli_port_info, NULL };
173 unsigned int board_idx = (unsigned int) ent->driver_data;
174 struct ata_host *host;
175 struct uli_priv *hpriv;
176 void __iomem * const *iomap;
177 struct ata_ioports *ioaddr;
180 if (!printed_version++)
181 dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n");
183 rc = pcim_enable_device(pdev);
188 if (board_idx == uli_5287)
191 /* allocate the host */
192 host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
196 hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);
199 host->private_data = hpriv;
201 /* the first two ports are standard SFF */
202 rc = ata_pci_init_sff_host(host);
206 rc = ata_pci_init_bmdma(host);
214 /* If there are four, the last two live right after
215 * the standard SFF ports.
217 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
218 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
220 ioaddr = &host->ports[2]->ioaddr;
221 ioaddr->cmd_addr = iomap[0] + 8;
222 ioaddr->altstatus_addr =
223 ioaddr->ctl_addr = (void __iomem *)
224 ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4;
225 ioaddr->bmdma_addr = iomap[4] + 16;
226 hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4;
227 ata_std_ports(ioaddr);
229 ata_port_desc(host->ports[2],
230 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
231 (unsigned long long)pci_resource_start(pdev, 0) + 8,
232 ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4,
233 (unsigned long long)pci_resource_start(pdev, 4) + 16);
235 ioaddr = &host->ports[3]->ioaddr;
236 ioaddr->cmd_addr = iomap[2] + 8;
237 ioaddr->altstatus_addr =
238 ioaddr->ctl_addr = (void __iomem *)
239 ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4;
240 ioaddr->bmdma_addr = iomap[4] + 24;
241 hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5;
242 ata_std_ports(ioaddr);
244 ata_port_desc(host->ports[2],
245 "cmd 0x%llx ctl 0x%llx bmdma 0x%llx",
246 (unsigned long long)pci_resource_start(pdev, 2) + 9,
247 ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4,
248 (unsigned long long)pci_resource_start(pdev, 4) + 24);
253 hpriv->scr_cfg_addr[0] = ULI5287_BASE;
254 hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS;
258 hpriv->scr_cfg_addr[0] = ULI5281_BASE;
259 hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS;
267 pci_set_master(pdev);
269 return ata_host_activate(host, pdev->irq, ata_interrupt, IRQF_SHARED,
273 static int __init uli_init(void)
275 return pci_register_driver(&uli_pci_driver);
278 static void __exit uli_exit(void)
280 pci_unregister_driver(&uli_pci_driver);
284 module_init(uli_init);
285 module_exit(uli_exit);