2 * dwc3-pci.c - PCI Specific glue layer
4 * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com
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39 #include <linux/kernel.h>
40 #include <linux/module.h>
41 #include <linux/slab.h>
42 #include <linux/pci.h>
43 #include <linux/platform_device.h>
45 #include <linux/usb/otg.h>
46 #include <linux/usb/nop-usb-xceiv.h>
50 /* FIXME define these in <linux/pci_ids.h> */
51 #define PCI_VENDOR_ID_SYNOPSYS 0x16c3
52 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3 0xabcd
56 struct platform_device *dwc3;
57 struct platform_device *usb2_phy;
58 struct platform_device *usb3_phy;
61 static int dwc3_pci_register_phys(struct dwc3_pci *glue)
63 struct nop_usb_xceiv_platform_data pdata;
64 struct platform_device *pdev;
67 memset(&pdata, 0x00, sizeof(pdata));
69 pdev = platform_device_alloc("nop_usb_xceiv", 0);
73 glue->usb2_phy = pdev;
74 pdata.type = USB_PHY_TYPE_USB2;
76 ret = platform_device_add_data(glue->usb2_phy, &pdata, sizeof(pdata));
80 pdev = platform_device_alloc("nop_usb_xceiv", 1);
86 glue->usb3_phy = pdev;
87 pdata.type = USB_PHY_TYPE_USB3;
89 ret = platform_device_add_data(glue->usb3_phy, &pdata, sizeof(pdata));
93 ret = platform_device_add(glue->usb2_phy);
97 ret = platform_device_add(glue->usb3_phy);
104 platform_device_del(glue->usb2_phy);
107 platform_device_put(glue->usb3_phy);
110 platform_device_put(glue->usb2_phy);
115 static int dwc3_pci_probe(struct pci_dev *pci,
116 const struct pci_device_id *id)
118 struct resource res[2];
119 struct platform_device *dwc3;
120 struct dwc3_pci *glue;
122 struct device *dev = &pci->dev;
124 glue = devm_kzalloc(dev, sizeof(*glue), GFP_KERNEL);
126 dev_err(dev, "not enough memory\n");
132 ret = pci_enable_device(pci);
134 dev_err(dev, "failed to enable pci device\n");
138 pci_set_power_state(pci, PCI_D0);
141 ret = dwc3_pci_register_phys(glue);
143 dev_err(dev, "couldn't register PHYs\n");
147 dwc3 = platform_device_alloc("dwc3", PLATFORM_DEVID_AUTO);
149 dev_err(dev, "couldn't allocate dwc3 device\n");
154 memset(res, 0x00, sizeof(struct resource) * ARRAY_SIZE(res));
156 res[0].start = pci_resource_start(pci, 0);
157 res[0].end = pci_resource_end(pci, 0);
158 res[0].name = "dwc_usb3";
159 res[0].flags = IORESOURCE_MEM;
161 res[1].start = pci->irq;
162 res[1].name = "dwc_usb3";
163 res[1].flags = IORESOURCE_IRQ;
165 ret = platform_device_add_resources(dwc3, res, ARRAY_SIZE(res));
167 dev_err(dev, "couldn't add resources to dwc3 device\n");
171 pci_set_drvdata(pci, glue);
173 dma_set_coherent_mask(&dwc3->dev, dev->coherent_dma_mask);
175 dwc3->dev.dma_mask = dev->dma_mask;
176 dwc3->dev.dma_parms = dev->dma_parms;
177 dwc3->dev.parent = dev;
180 ret = platform_device_add(dwc3);
182 dev_err(dev, "failed to register dwc3 device\n");
189 pci_set_drvdata(pci, NULL);
190 platform_device_put(dwc3);
192 pci_disable_device(pci);
197 static void dwc3_pci_remove(struct pci_dev *pci)
199 struct dwc3_pci *glue = pci_get_drvdata(pci);
201 platform_device_unregister(glue->usb2_phy);
202 platform_device_unregister(glue->usb3_phy);
203 platform_device_unregister(glue->dwc3);
204 pci_set_drvdata(pci, NULL);
205 pci_disable_device(pci);
208 static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
210 PCI_DEVICE(PCI_VENDOR_ID_SYNOPSYS,
211 PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3),
213 { } /* Terminating Entry */
215 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
217 static struct pci_driver dwc3_pci_driver = {
219 .id_table = dwc3_pci_id_table,
220 .probe = dwc3_pci_probe,
221 .remove = dwc3_pci_remove,
225 MODULE_LICENSE("Dual BSD/GPL");
226 MODULE_DESCRIPTION("DesignWare USB3 PCI Glue Layer");
228 module_pci_driver(dwc3_pci_driver);