2 * dwc3-pci.c - PCI Specific glue layer
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
6 * Authors: Felipe Balbi <balbi@ti.com>,
7 * Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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.
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.
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/slab.h>
22 #include <linux/pci.h>
23 #include <linux/platform_device.h>
25 #include <linux/usb/otg.h>
26 #include <linux/usb/nop-usb-xceiv.h>
28 /* FIXME define these in <linux/pci_ids.h> */
29 #define PCI_VENDOR_ID_SYNOPSYS 0x16c3
30 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
34 struct platform_device *dwc3;
35 struct platform_device *usb2_phy;
36 struct platform_device *usb3_phy;
39 static int dwc3_pci_register_phys(struct dwc3_pci *glue)
41 struct nop_usb_xceiv_platform_data pdata;
42 struct platform_device *pdev;
45 memset(&pdata, 0x00, sizeof(pdata));
47 pdev = platform_device_alloc("nop_usb_xceiv", 0);
51 glue->usb2_phy = pdev;
52 pdata.type = USB_PHY_TYPE_USB2;
54 ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata));
58 pdev = platform_device_alloc("nop_usb_xceiv", 1);
64 glue->usb3_phy = pdev;
65 pdata.type = USB_PHY_TYPE_USB3;
67 ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata));
71 ret = platform_device_add(glue->usb2_phy);
75 ret = platform_device_add(glue->usb3_phy);
82 platform_device_del(glue->usb2_phy);
85 platform_device_put(glue->usb3_phy);
88 platform_device_put(glue->usb2_phy);
93 static int dwc3_pci_probe(struct pci_dev *pci,
94 const struct pci_device_id *id)
96 struct resource res[2];
97 struct platform_device *dwc3;
98 struct dwc3_pci *glue;
100 struct device *dev = &pci->dev;
102 glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
104 dev_err(dev, "not enough memory\n");
110 ret = pci_enable_device(pci);
112 dev_err(dev, "failed to enable pci device\n");
118 ret = dwc3_pci_register_phys(glue);
120 dev_err(dev, "couldn't register PHYs\n");
124 dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
126 dev_err(dev, "couldn't allocate dwc3 device\n");
131 memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
133 res[0].start = pci_resource_start(pci, 0);
134 res[0].end = pci_resource_end(pci, 0);
135 res[0].name = "dwc_usb3";
136 res[0].flags = IORESOURCE_MEM;
138 res[1].start = pci->irq;
139 res[1].name = "dwc_usb3";
140 res[1].flags = IORESOURCE_IRQ;
142 ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
144 dev_err(dev, "couldn't add resources to dwc3 device\n");
148 pci_set_drvdata(pci, glue);
150 dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
152 dwc3->dev.dma_mask = dev->dma_mask;
153 dwc3->dev.dma_parms = dev->dma_parms;
154 dwc3->dev.parent = dev;
157 ret = platform_device_add(dwc3);
159 dev_err(dev, "failed to register dwc3 device\n");
166 pci_set_drvdata(pci, NULL);
167 platform_device_put(dwc3);
169 pci_disable_device(pci);
174 static void dwc3_pci_remove(struct pci_dev *pci)
176 struct dwc3_pci *glue = pci_get_drvdata(pci);
178 platform_device_unregister(glue->dwc3);
179 platform_device_unregister(glue->usb2_phy);
180 platform_device_unregister(glue->usb3_phy);
181 pci_set_drvdata(pci, NULL);
182 pci_disable_device(pci);
185 static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
187 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
188 PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
190 { } /* Terminating Entry */
192 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
195 static int dwc3_pci_suspend(struct device *dev)
197 struct pci_dev *pci = to_pci_dev(dev);
199 pci_disable_device(pci);
204 static int dwc3_pci_resume(struct device *dev)
206 struct pci_dev *pci = to_pci_dev(dev);
209 ret = pci_enable_device(pci);
211 dev_err(dev, "can't re-enable device --> %d\n", ret);
220 static const struct dev_pm_ops dwc3_pci_dev_pm_ops = {
221 SET_SYSTEM_SLEEP_PM_OPS(dwc3_pci_suspend, dwc3_pci_resume)
224 #define DEV_PM_OPS (&dwc3_pci_dev_pm_ops)
226 #define DEV_PM_OPS NULL
227 #endif /* CONFIG_PM */
229 static struct pci_driver dwc3_pci_driver = {
231 .id_table = dwc3_pci_id_table,
232 .probe = dwc3_pci_probe,
233 .remove = dwc3_pci_remove,
239 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
240 MODULE_LICENSE("GPL v2");
241 MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
243 module_pci_driver(dwc3_pci_driver);