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1da177e4 LT |
1 | /* |
2 | * sata_uli.c - ULi Electronics SATA | |
3 | * | |
af36d7f0 JG |
4 | * |
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) | |
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. | |
1da177e4 LT |
24 | * |
25 | */ | |
26 | ||
1da177e4 LT |
27 | #include <linux/kernel.h> |
28 | #include <linux/module.h> | |
5a0e3ad6 | 29 | #include <linux/gfp.h> |
1da177e4 LT |
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> | |
a9524a76 | 35 | #include <linux/device.h> |
1da177e4 LT |
36 | #include <scsi/scsi_host.h> |
37 | #include <linux/libata.h> | |
38 | ||
39 | #define DRV_NAME "sata_uli" | |
2a3103ce | 40 | #define DRV_VERSION "1.3" |
1da177e4 LT |
41 | |
42 | enum { | |
43 | uli_5289 = 0, | |
44 | uli_5287 = 1, | |
45 | uli_5281 = 2, | |
46 | ||
50106c5a JG |
47 | uli_max_ports = 4, |
48 | ||
1da177e4 LT |
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 */ | |
54 | }; | |
55 | ||
50106c5a JG |
56 | struct uli_priv { |
57 | unsigned int scr_cfg_addr[uli_max_ports]; | |
58 | }; | |
59 | ||
5796d1c4 | 60 | static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent); |
82ef04fb TH |
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); | |
1da177e4 | 63 | |
3b7d697d | 64 | static const struct pci_device_id uli_pci_tbl[] = { |
54bb3a94 JG |
65 | { PCI_VDEVICE(AL, 0x5289), uli_5289 }, |
66 | { PCI_VDEVICE(AL, 0x5287), uli_5287 }, | |
67 | { PCI_VDEVICE(AL, 0x5281), uli_5281 }, | |
68 | ||
1da177e4 LT |
69 | { } /* terminate list */ |
70 | }; | |
71 | ||
1da177e4 LT |
72 | static struct pci_driver uli_pci_driver = { |
73 | .name = DRV_NAME, | |
74 | .id_table = uli_pci_tbl, | |
75 | .probe = uli_init_one, | |
76 | .remove = ata_pci_remove_one, | |
77 | }; | |
78 | ||
193515d5 | 79 | static struct scsi_host_template uli_sht = { |
68d1d07b | 80 | ATA_BMDMA_SHT(DRV_NAME), |
1da177e4 LT |
81 | }; |
82 | ||
029cfd6b TH |
83 | static struct ata_port_operations uli_ops = { |
84 | .inherits = &ata_bmdma_port_ops, | |
1da177e4 LT |
85 | .scr_read = uli_scr_read, |
86 | .scr_write = uli_scr_write, | |
70a3143a | 87 | .hardreset = ATA_OP_NULL, |
1da177e4 LT |
88 | }; |
89 | ||
1626aeb8 | 90 | static const struct ata_port_info uli_port_info = { |
b2a8bbe6 TH |
91 | .flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | |
92 | ATA_FLAG_IGN_SIMPLEX, | |
14bdef98 | 93 | .pio_mask = ATA_PIO4, |
bf6263a8 | 94 | .udma_mask = ATA_UDMA6, |
1da177e4 LT |
95 | .port_ops = &uli_ops, |
96 | }; | |
97 | ||
98 | ||
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); | |
104 | ||
105 | static unsigned int get_scr_cfg_addr(struct ata_port *ap, unsigned int sc_reg) | |
106 | { | |
cca3974e | 107 | struct uli_priv *hpriv = ap->host->private_data; |
50106c5a | 108 | return hpriv->scr_cfg_addr[ap->port_no] + (4 * sc_reg); |
1da177e4 LT |
109 | } |
110 | ||
82ef04fb | 111 | static u32 uli_scr_cfg_read(struct ata_link *link, unsigned int sc_reg) |
1da177e4 | 112 | { |
82ef04fb TH |
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); | |
1da177e4 LT |
115 | u32 val; |
116 | ||
117 | pci_read_config_dword(pdev, cfg_addr, &val); | |
118 | return val; | |
119 | } | |
120 | ||
82ef04fb | 121 | static void uli_scr_cfg_write(struct ata_link *link, unsigned int scr, u32 val) |
1da177e4 | 122 | { |
82ef04fb TH |
123 | struct pci_dev *pdev = to_pci_dev(link->ap->host->dev); |
124 | unsigned int cfg_addr = get_scr_cfg_addr(link->ap, scr); | |
1da177e4 LT |
125 | |
126 | pci_write_config_dword(pdev, cfg_addr, val); | |
127 | } | |
128 | ||
82ef04fb | 129 | static int uli_scr_read(struct ata_link *link, unsigned int sc_reg, u32 *val) |
1da177e4 LT |
130 | { |
131 | if (sc_reg > SCR_CONTROL) | |
da3dbb17 | 132 | return -EINVAL; |
1da177e4 | 133 | |
82ef04fb | 134 | *val = uli_scr_cfg_read(link, sc_reg); |
da3dbb17 | 135 | return 0; |
1da177e4 LT |
136 | } |
137 | ||
82ef04fb | 138 | static int uli_scr_write(struct ata_link *link, unsigned int sc_reg, u32 val) |
1da177e4 | 139 | { |
5796d1c4 | 140 | if (sc_reg > SCR_CONTROL) //SCR_CONTROL=2, SCR_ERROR=1, SCR_STATUS=0 |
da3dbb17 | 141 | return -EINVAL; |
1da177e4 | 142 | |
82ef04fb | 143 | uli_scr_cfg_write(link, sc_reg, val); |
da3dbb17 | 144 | return 0; |
1da177e4 LT |
145 | } |
146 | ||
5796d1c4 | 147 | static int uli_init_one(struct pci_dev *pdev, const struct pci_device_id *ent) |
1da177e4 | 148 | { |
a9524a76 | 149 | static int printed_version; |
9a829ccf | 150 | const struct ata_port_info *ppi[] = { &uli_port_info, NULL }; |
1da177e4 | 151 | unsigned int board_idx = (unsigned int) ent->driver_data; |
9a829ccf | 152 | struct ata_host *host; |
50106c5a | 153 | struct uli_priv *hpriv; |
0d5ff566 | 154 | void __iomem * const *iomap; |
9a829ccf TH |
155 | struct ata_ioports *ioaddr; |
156 | int n_ports, rc; | |
1da177e4 | 157 | |
a9524a76 JG |
158 | if (!printed_version++) |
159 | dev_printk(KERN_INFO, &pdev->dev, "version " DRV_VERSION "\n"); | |
160 | ||
24dc5f33 | 161 | rc = pcim_enable_device(pdev); |
1da177e4 LT |
162 | if (rc) |
163 | return rc; | |
164 | ||
9a829ccf TH |
165 | n_ports = 2; |
166 | if (board_idx == uli_5287) | |
167 | n_ports = 4; | |
1626aeb8 TH |
168 | |
169 | /* allocate the host */ | |
170 | host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports); | |
171 | if (!host) | |
172 | return -ENOMEM; | |
1da177e4 | 173 | |
24dc5f33 TH |
174 | hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL); |
175 | if (!hpriv) | |
176 | return -ENOMEM; | |
9a829ccf | 177 | host->private_data = hpriv; |
50106c5a | 178 | |
1626aeb8 | 179 | /* the first two ports are standard SFF */ |
9363c382 | 180 | rc = ata_pci_sff_init_host(host); |
1626aeb8 TH |
181 | if (rc) |
182 | return rc; | |
183 | ||
9363c382 | 184 | rc = ata_pci_bmdma_init(host); |
1626aeb8 TH |
185 | if (rc) |
186 | return rc; | |
187 | ||
9a829ccf | 188 | iomap = host->iomap; |
0d5ff566 | 189 | |
1da177e4 LT |
190 | switch (board_idx) { |
191 | case uli_5287: | |
1626aeb8 TH |
192 | /* If there are four, the last two live right after |
193 | * the standard SFF ports. | |
194 | */ | |
50106c5a JG |
195 | hpriv->scr_cfg_addr[0] = ULI5287_BASE; |
196 | hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; | |
1da177e4 | 197 | |
9a829ccf TH |
198 | ioaddr = &host->ports[2]->ioaddr; |
199 | ioaddr->cmd_addr = iomap[0] + 8; | |
200 | ioaddr->altstatus_addr = | |
201 | ioaddr->ctl_addr = (void __iomem *) | |
0d5ff566 | 202 | ((unsigned long)iomap[1] | ATA_PCI_CTL_OFS) + 4; |
9a829ccf | 203 | ioaddr->bmdma_addr = iomap[4] + 16; |
50106c5a | 204 | hpriv->scr_cfg_addr[2] = ULI5287_BASE + ULI5287_OFFS*4; |
9363c382 | 205 | ata_sff_std_ports(ioaddr); |
1da177e4 | 206 | |
cbcdd875 TH |
207 | ata_port_desc(host->ports[2], |
208 | "cmd 0x%llx ctl 0x%llx bmdma 0x%llx", | |
209 | (unsigned long long)pci_resource_start(pdev, 0) + 8, | |
210 | ((unsigned long long)pci_resource_start(pdev, 1) | ATA_PCI_CTL_OFS) + 4, | |
211 | (unsigned long long)pci_resource_start(pdev, 4) + 16); | |
212 | ||
9a829ccf TH |
213 | ioaddr = &host->ports[3]->ioaddr; |
214 | ioaddr->cmd_addr = iomap[2] + 8; | |
215 | ioaddr->altstatus_addr = | |
216 | ioaddr->ctl_addr = (void __iomem *) | |
0d5ff566 | 217 | ((unsigned long)iomap[3] | ATA_PCI_CTL_OFS) + 4; |
9a829ccf | 218 | ioaddr->bmdma_addr = iomap[4] + 24; |
50106c5a | 219 | hpriv->scr_cfg_addr[3] = ULI5287_BASE + ULI5287_OFFS*5; |
9363c382 | 220 | ata_sff_std_ports(ioaddr); |
cbcdd875 TH |
221 | |
222 | ata_port_desc(host->ports[2], | |
223 | "cmd 0x%llx ctl 0x%llx bmdma 0x%llx", | |
224 | (unsigned long long)pci_resource_start(pdev, 2) + 9, | |
225 | ((unsigned long long)pci_resource_start(pdev, 3) | ATA_PCI_CTL_OFS) + 4, | |
226 | (unsigned long long)pci_resource_start(pdev, 4) + 24); | |
227 | ||
1da177e4 LT |
228 | break; |
229 | ||
230 | case uli_5289: | |
50106c5a JG |
231 | hpriv->scr_cfg_addr[0] = ULI5287_BASE; |
232 | hpriv->scr_cfg_addr[1] = ULI5287_BASE + ULI5287_OFFS; | |
1da177e4 LT |
233 | break; |
234 | ||
235 | case uli_5281: | |
50106c5a JG |
236 | hpriv->scr_cfg_addr[0] = ULI5281_BASE; |
237 | hpriv->scr_cfg_addr[1] = ULI5281_BASE + ULI5281_OFFS; | |
1da177e4 LT |
238 | break; |
239 | ||
240 | default: | |
241 | BUG(); | |
242 | break; | |
243 | } | |
244 | ||
245 | pci_set_master(pdev); | |
a04ce0ff | 246 | pci_intx(pdev, 1); |
9363c382 TH |
247 | return ata_host_activate(host, pdev->irq, ata_sff_interrupt, |
248 | IRQF_SHARED, &uli_sht); | |
1da177e4 LT |
249 | } |
250 | ||
251 | static int __init uli_init(void) | |
252 | { | |
b7887196 | 253 | return pci_register_driver(&uli_pci_driver); |
1da177e4 LT |
254 | } |
255 | ||
256 | static void __exit uli_exit(void) | |
257 | { | |
258 | pci_unregister_driver(&uli_pci_driver); | |
259 | } | |
260 | ||
261 | ||
262 | module_init(uli_init); | |
263 | module_exit(uli_exit); |