2 * sata_uli.c - ULi Electronics SATA
4 * The contents of this file are subject to the Open
5 * Software License version 1.1 that can be found at
6 * http://www.opensource.org/licenses/osl-1.1.txt and is included herein
9 * Alternatively, the contents of this file may be used under the terms
10 * of the GNU General Public License version 2 (the "GPL") as distributed
11 * in the kernel source COPYING file, in which case the provisions of
12 * the GPL are applicable instead of the above. If you wish to allow
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15 * the OSL, indicate your decision by deleting the provisions above and
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17 * If you do not delete the provisions above, a recipient may use your
18 * version of this file under either the OSL or the GPL.
22 #include <linux/config.h>
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/pci.h>
26 #include <linux/init.h>
27 #include <linux/blkdev.h>
28 #include <linux/delay.h>
29 #include <linux/interrupt.h>
31 #include <scsi/scsi_host.h>
32 #include <linux/libata.h>
34 #define DRV_NAME "sata_uli"
35 #define DRV_VERSION "0.5"
42 /* PCI configuration registers */
43 ULI5287_BASE = 0x90, /* sata0 phy SCR registers */
44 ULI5287_OFFS = 0x10, /* offset from sata0->sata1 phy regs */
45 ULI5281_BASE = 0x60, /* sata0 phy SCR registers */
46 ULI5281_OFFS = 0x60, /* offset from sata0->sata1 phy regs */
49 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent);
50 static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg);
51 static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val);
53 static struct pci_device_id uli_pci_tbl[] = {
54 { PCI_VENDOR_ID_AL, 0x5289, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5289 },
55 { PCI_VENDOR_ID_AL, 0x5287, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5287 },
56 { PCI_VENDOR_ID_AL, 0x5281, PCI_ANY_ID, PCI_ANY_ID, 0, 0, uli_5281 },
57 { } /* terminate list */
61 static struct pci_driver uli_pci_driver = {
63 .id_table = uli_pci_tbl,
64 .probe = uli_init_one,
65 .remove = ata_pci_remove_one,
68 static Scsi_Host_Template uli_sht = {
69 .module = THIS_MODULE,
71 .ioctl = ata_scsi_ioctl,
72 .queuecommand = ata_scsi_queuecmd,
73 .eh_strategy_handler = ata_scsi_error,
74 .can_queue = ATA_DEF_QUEUE,
75 .this_id = ATA_SHT_THIS_ID,
76 .sg_tablesize = LIBATA_MAX_PRD,
77 .max_sectors = ATA_MAX_SECTORS,
78 .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
79 .emulated = ATA_SHT_EMULATED,
80 .use_clustering = ATA_SHT_USE_CLUSTERING,
81 .proc_name = DRV_NAME,
82 .dma_boundary = ATA_DMA_BOUNDARY,
83 .slave_configure = ata_scsi_slave_config,
84 .bios_param = ata_std_bios_param,
87 static struct ata_port_operations uli_ops = {
88 .port_disable = ata_port_disable,
90 .tf_load = ata_tf_load,
91 .tf_read = ata_tf_read,
92 .check_status = ata_check_status,
93 .exec_command = ata_exec_command,
94 .dev_select = ata_std_dev_select,
96 .phy_reset = sata_phy_reset,
98 .bmdma_setup = ata_bmdma_setup,
99 .bmdma_start = ata_bmdma_start,
100 .bmdma_stop = ata_bmdma_stop,
101 .bmdma_status = ata_bmdma_status,
102 .qc_prep = ata_qc_prep,
103 .qc_issue = ata_qc_issue_prot,
105 .eng_timeout = ata_eng_timeout,
107 .irq_handler = ata_interrupt,
108 .irq_clear = ata_bmdma_irq_clear,
110 .scr_read = uli_scr_read,
111 .scr_write = uli_scr_write,
113 .port_start = ata_port_start,
114 .port_stop = ata_port_stop,
117 static struct ata_port_info uli_port_info = {
119 .host_flags = ATA_FLAG_SATA | ATA_FLAG_SATA_RESET |
121 .pio_mask = 0x03, //support pio mode 4 (FIXME)
122 .udma_mask = 0x7f, //support udma mode 6
123 .port_ops = &uli_ops,
127 MODULE_AUTHOR("Peer Chen");
128 MODULE_DESCRIPTION("low-level driver for ULi Electronics SATA controller");
129 MODULE_LICENSE("GPL");
130 MODULE_DEVICE_TABLE(pci, uli_pci_tbl);
131 MODULE_VERSION(DRV_VERSION);
133 static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg)
135 return ap->ioaddr.scr_addr + (4 * sc_reg);
138 static u32 uli_scr_cfg_read (struct ata_port *ap, unsigned int sc_reg)
140 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
141 unsigned int cfg_addr = get_scr_cfg_addr(ap, sc_reg);
144 pci_read_config_dword(pdev, cfg_addr, &val);
148 static void uli_scr_cfg_write (struct ata_port *ap, unsigned int scr, u32 val)
150 struct pci_dev *pdev = to_pci_dev(ap->host_set->dev);
151 unsigned int cfg_addr = get_scr_cfg_addr(ap, scr);
153 pci_write_config_dword(pdev, cfg_addr, val);
156 static u32 uli_scr_read (struct ata_port *ap, unsigned int sc_reg)
158 if (sc_reg > SCR_CONTROL)
161 return uli_scr_cfg_read(ap, sc_reg);
164 static void uli_scr_write (struct ata_port *ap, unsigned int sc_reg, u32 val)
166 if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0
169 uli_scr_cfg_write(ap, sc_reg, val);
172 /* move to PCI layer, integrate w/ MSI stuff */
173 static void pci_enable_intx(struct pci_dev *pdev)
177 pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
178 if (pci_command & PCI_COMMAND_INTX_DISABLE) {
179 pci_command &= ~PCI_COMMAND_INTX_DISABLE;
180 pci_write_config_word(pdev, PCI_COMMAND, pci_command);
184 static int uli_init_one (struct pci_dev *pdev, const struct pci_device_id *ent)
186 struct ata_probe_ent *probe_ent;
187 struct ata_port_info *ppi;
189 unsigned int board_idx = (unsigned int) ent->driver_data;
190 int pci_dev_busy = 0;
192 rc = pci_enable_device(pdev);
196 rc = pci_request_regions(pdev, DRV_NAME);
202 rc = pci_set_dma_mask(pdev, ATA_DMA_MASK);
204 goto err_out_regions;
205 rc = pci_set_consistent_dma_mask(pdev, ATA_DMA_MASK);
207 goto err_out_regions;
209 ppi = &uli_port_info;
210 probe_ent = ata_pci_init_native_mode(pdev, &ppi);
213 goto err_out_regions;
218 probe_ent->port[0].scr_addr = ULI5287_BASE;
219 probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS;
220 probe_ent->n_ports = 4;
222 probe_ent->port[2].cmd_addr = pci_resource_start(pdev, 0) + 8;
223 probe_ent->port[2].altstatus_addr =
224 probe_ent->port[2].ctl_addr =
225 (pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4;
226 probe_ent->port[2].bmdma_addr = pci_resource_start(pdev, 4) + 16;
227 probe_ent->port[2].scr_addr = ULI5287_BASE + ULI5287_OFFS*4;
229 probe_ent->port[3].cmd_addr = pci_resource_start(pdev, 2) + 8;
230 probe_ent->port[3].altstatus_addr =
231 probe_ent->port[3].ctl_addr =
232 (pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4;
233 probe_ent->port[3].bmdma_addr = pci_resource_start(pdev, 4) + 24;
234 probe_ent->port[3].scr_addr = ULI5287_BASE + ULI5287_OFFS*5;
236 ata_std_ports(&probe_ent->port[2]);
237 ata_std_ports(&probe_ent->port[3]);
241 probe_ent->port[0].scr_addr = ULI5287_BASE;
242 probe_ent->port[1].scr_addr = ULI5287_BASE + ULI5287_OFFS;
246 probe_ent->port[0].scr_addr = ULI5281_BASE;
247 probe_ent->port[1].scr_addr = ULI5281_BASE + ULI5281_OFFS;
255 pci_set_master(pdev);
256 pci_enable_intx(pdev);
258 /* FIXME: check ata_device_add return value */
259 ata_device_add(probe_ent);
265 pci_release_regions(pdev);
269 pci_disable_device(pdev);
274 static int __init uli_init(void)
276 return pci_module_init(&uli_pci_driver);
279 static void __exit uli_exit(void)
281 pci_unregister_driver(&uli_pci_driver);
285 module_init(uli_init);
286 module_exit(uli_exit);