Commit | Line | Data |
---|---|---|
72246da4 FB |
1 | /** |
2 | * dwc3-pci.c - PCI Specific glue layer | |
3 | * | |
4 | * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com | |
72246da4 FB |
5 | * |
6 | * Authors: Felipe Balbi <balbi@ti.com>, | |
7 | * Sebastian Andrzej Siewior <bigeasy@linutronix.de> | |
8 | * | |
5945f789 FB |
9 | * This program is free software: you can redistribute it and/or modify |
10 | * it under the terms of the GNU General Public License version 2 of | |
11 | * the License as published by the Free Software Foundation. | |
72246da4 | 12 | * |
5945f789 FB |
13 | * This program is distributed in the hope that it will be useful, |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
72246da4 FB |
17 | */ |
18 | ||
19 | #include <linux/kernel.h> | |
46a57283 | 20 | #include <linux/module.h> |
72246da4 FB |
21 | #include <linux/slab.h> |
22 | #include <linux/pci.h> | |
23 | #include <linux/platform_device.h> | |
24 | ||
e3ec3eb7 | 25 | #include <linux/usb/otg.h> |
3fa4d734 | 26 | #include <linux/usb/usb_phy_gen_xceiv.h> |
e3ec3eb7 | 27 | |
72246da4 FB |
28 | /* FIXME define these in <linux/pci_ids.h> */ |
29 | #define PCI_VENDOR_ID_SYNOPSYS 0x16c3 | |
30 | #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd | |
b62cd96d | 31 | #define PCI_DEVICE_ID_INTEL_BYT 0x0f37 |
85601f8c | 32 | #define PCI_DEVICE_ID_INTEL_MRFLD 0x119e |
72246da4 | 33 | |
72246da4 FB |
34 | struct dwc3_pci { |
35 | struct device *dev; | |
36 | struct platform_device *dwc3; | |
e3ec3eb7 FB |
37 | struct platform_device *usb2_phy; |
38 | struct platform_device *usb3_phy; | |
72246da4 FB |
39 | }; |
40 | ||
41ac7b3a | 41 | static int dwc3_pci_register_phys(struct dwc3_pci *glue) |
e3ec3eb7 | 42 | { |
3fa4d734 | 43 | struct usb_phy_gen_xceiv_platform_data pdata; |
e3ec3eb7 FB |
44 | struct platform_device *pdev; |
45 | int ret; | |
46 | ||
47 | memset(&pdata, 0x00, sizeof(pdata)); | |
48 | ||
3fa4d734 | 49 | pdev = platform_device_alloc("usb_phy_gen_xceiv", 0); |
e3ec3eb7 FB |
50 | if (!pdev) |
51 | return -ENOMEM; | |
52 | ||
53 | glue->usb2_phy = pdev; | |
54 | pdata.type = USB_PHY_TYPE_USB2; | |
55 | ||
56 | ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata)); | |
57 | if (ret) | |
58 | goto err1; | |
59 | ||
3fa4d734 | 60 | pdev = platform_device_alloc("usb_phy_gen_xceiv", 1); |
e3ec3eb7 FB |
61 | if (!pdev) { |
62 | ret = -ENOMEM; | |
63 | goto err1; | |
64 | } | |
65 | ||
66 | glue->usb3_phy = pdev; | |
67 | pdata.type = USB_PHY_TYPE_USB3; | |
68 | ||
69 | ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata)); | |
70 | if (ret) | |
71 | goto err2; | |
72 | ||
73 | ret = platform_device_add(glue->usb2_phy); | |
74 | if (ret) | |
75 | goto err2; | |
76 | ||
77 | ret = platform_device_add(glue->usb3_phy); | |
78 | if (ret) | |
79 | goto err3; | |
80 | ||
81 | return 0; | |
82 | ||
83 | err3: | |
84 | platform_device_del(glue->usb2_phy); | |
85 | ||
86 | err2: | |
87 | platform_device_put(glue->usb3_phy); | |
88 | ||
89 | err1: | |
90 | platform_device_put(glue->usb2_phy); | |
91 | ||
92 | return ret; | |
93 | } | |
94 | ||
41ac7b3a | 95 | static int dwc3_pci_probe(struct pci_dev *pci, |
72246da4 FB |
96 | const struct pci_device_id *id) |
97 | { | |
98 | struct resource res[2]; | |
99 | struct platform_device *dwc3; | |
100 | struct dwc3_pci *glue; | |
101 | int ret = -ENOMEM; | |
802ca850 | 102 | struct device *dev = &pci->dev; |
72246da4 | 103 | |
802ca850 | 104 | glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL); |
72246da4 | 105 | if (!glue) { |
802ca850 CP |
106 | dev_err(dev, "not enough memory\n"); |
107 | return -ENOMEM; | |
72246da4 FB |
108 | } |
109 | ||
1d046793 | 110 | glue->dev = dev; |
72246da4 FB |
111 | |
112 | ret = pci_enable_device(pci); | |
113 | if (ret) { | |
802ca850 CP |
114 | dev_err(dev, "failed to enable pci device\n"); |
115 | return -ENODEV; | |
72246da4 FB |
116 | } |
117 | ||
72246da4 FB |
118 | pci_set_master(pci); |
119 | ||
e3ec3eb7 FB |
120 | ret = dwc3_pci_register_phys(glue); |
121 | if (ret) { | |
122 | dev_err(dev, "couldn't register PHYs\n"); | |
123 | return ret; | |
124 | } | |
125 | ||
124dafde | 126 | dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO); |
72246da4 | 127 | if (!dwc3) { |
802ca850 | 128 | dev_err(dev, "couldn't allocate dwc3 device\n"); |
28f1a0d9 | 129 | ret = -ENOMEM; |
802ca850 | 130 | goto err1; |
72246da4 FB |
131 | } |
132 | ||
133 | memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res)); | |
134 | ||
135 | res[0].start = pci_resource_start(pci, 0); | |
136 | res[0].end = pci_resource_end(pci, 0); | |
137 | res[0].name = "dwc_usb3"; | |
138 | res[0].flags = IORESOURCE_MEM; | |
139 | ||
140 | res[1].start = pci->irq; | |
141 | res[1].name = "dwc_usb3"; | |
142 | res[1].flags = IORESOURCE_IRQ; | |
143 | ||
144 | ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res)); | |
145 | if (ret) { | |
802ca850 | 146 | dev_err(dev, "couldn't add resources to dwc3 device\n"); |
124dafde | 147 | goto err1; |
72246da4 FB |
148 | } |
149 | ||
150 | pci_set_drvdata(pci, glue); | |
151 | ||
802ca850 | 152 | dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask); |
72246da4 | 153 | |
802ca850 CP |
154 | dwc3->dev.dma_mask = dev->dma_mask; |
155 | dwc3->dev.dma_parms = dev->dma_parms; | |
156 | dwc3->dev.parent = dev; | |
1d046793 | 157 | glue->dwc3 = dwc3; |
72246da4 FB |
158 | |
159 | ret = platform_device_add(dwc3); | |
160 | if (ret) { | |
802ca850 CP |
161 | dev_err(dev, "failed to register dwc3 device\n"); |
162 | goto err3; | |
72246da4 FB |
163 | } |
164 | ||
165 | return 0; | |
166 | ||
802ca850 | 167 | err3: |
72246da4 FB |
168 | pci_set_drvdata(pci, NULL); |
169 | platform_device_put(dwc3); | |
72246da4 | 170 | err1: |
802ca850 | 171 | pci_disable_device(pci); |
72246da4 | 172 | |
72246da4 FB |
173 | return ret; |
174 | } | |
175 | ||
fb4e98ab | 176 | static void dwc3_pci_remove(struct pci_dev *pci) |
72246da4 FB |
177 | { |
178 | struct dwc3_pci *glue = pci_get_drvdata(pci); | |
179 | ||
f28c42c5 | 180 | platform_device_unregister(glue->dwc3); |
e3ec3eb7 FB |
181 | platform_device_unregister(glue->usb2_phy); |
182 | platform_device_unregister(glue->usb3_phy); | |
72246da4 FB |
183 | pci_set_drvdata(pci, NULL); |
184 | pci_disable_device(pci); | |
72246da4 FB |
185 | } |
186 | ||
187 | static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = { | |
188 | { | |
189 | PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS, | |
190 | PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3), | |
191 | }, | |
b62cd96d | 192 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_BYT), }, |
85601f8c | 193 | { PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_MRFLD), }, |
72246da4 FB |
194 | { } /* Terminating Entry */ |
195 | }; | |
196 | MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table); | |
197 | ||
fb74d282 | 198 | #ifdef CONFIG_PM_SLEEP |
68907a77 FB |
199 | static int dwc3_pci_suspend(struct device *dev) |
200 | { | |
201 | struct pci_dev *pci = to_pci_dev(dev); | |
202 | ||
203 | pci_disable_device(pci); | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
208 | static int dwc3_pci_resume(struct device *dev) | |
209 | { | |
210 | struct pci_dev *pci = to_pci_dev(dev); | |
211 | int ret; | |
212 | ||
213 | ret = pci_enable_device(pci); | |
214 | if (ret) { | |
215 | dev_err(dev, "can't re-enable device --> %d\n", ret); | |
216 | return ret; | |
217 | } | |
218 | ||
219 | pci_set_master(pci); | |
220 | ||
221 | return 0; | |
222 | } | |
fb74d282 | 223 | #endif /* CONFIG_PM_SLEEP */ |
68907a77 FB |
224 | |
225 | static const struct dev_pm_ops dwc3_pci_dev_pm_ops = { | |
226 | SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume) | |
227 | }; | |
228 | ||
72246da4 | 229 | static struct pci_driver dwc3_pci_driver = { |
0949e99b | 230 | .name = "dwc3-pci", |
72246da4 FB |
231 | .id_table = dwc3_pci_id_table, |
232 | .probe = dwc3_pci_probe, | |
7690417d | 233 | .remove = dwc3_pci_remove, |
68907a77 | 234 | .driver = { |
fb74d282 | 235 | .pm = &dwc3_pci_dev_pm_ops, |
68907a77 | 236 | }, |
72246da4 FB |
237 | }; |
238 | ||
239 | MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>"); | |
5945f789 | 240 | MODULE_LICENSE("GPL v2"); |
72246da4 FB |
241 | MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer"); |
242 | ||
95656336 | 243 | module_pci_driver(dwc3_pci_driver); |