2 * Copyright (c) 2007-2008, Juniper Networks, Inc.
5 * SPDX-License-Identifier: GPL-2.0
16 /* Information about a USB port */
17 struct ehci_pci_priv {
18 struct ehci_ctrl ehci;
21 static void ehci_pci_common_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
22 struct ehci_hcor **ret_hcor)
24 struct ehci_hccr *hccr;
25 struct ehci_hcor *hcor;
28 hccr = (struct ehci_hccr *)pci_map_bar(pdev,
29 PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
30 hcor = (struct ehci_hcor *)((uint32_t) hccr +
31 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
33 debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
34 (uint32_t)hccr, (uint32_t)hcor,
35 (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
40 /* enable busmaster */
41 pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
42 cmd |= PCI_COMMAND_MASTER;
43 pci_write_config_dword(pdev, PCI_COMMAND, cmd);
48 #ifdef CONFIG_PCI_EHCI_DEVICE
49 static struct pci_device_id ehci_pci_ids[] = {
50 /* Please add supported PCI EHCI controller ids here */
51 {0x1033, 0x00E0}, /* NEC */
52 {0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
53 {0x12D8, 0x400F}, /* Pericom */
59 * Create the appropriate control structures to manage
60 * a new EHCI host controller.
62 int ehci_hcd_init(int index, enum usb_init_type init,
63 struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
67 #ifdef CONFIG_PCI_EHCI_DEVICE
68 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
70 pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
73 printf("EHCI host controller not found\n");
76 ehci_pci_common_init(pdev, ret_hccr, ret_hcor);
82 * Destroy the appropriate control structures corresponding
83 * the the EHCI host controller.
85 int ehci_hcd_stop(int index)
89 #endif /* nCONFIG_DM_USB */
92 static int ehci_pci_probe(struct udevice *dev)
94 struct ehci_hccr *hccr;
95 struct ehci_hcor *hcor;
97 ehci_pci_common_init(pci_get_bdf(dev), &hccr, &hcor);
99 return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
102 static int ehci_pci_remove(struct udevice *dev)
106 ret = ehci_deregister(dev);
113 U_BOOT_DRIVER(ehci_pci) = {
116 .probe = ehci_pci_probe,
117 .remove = ehci_pci_remove,
118 .ops = &ehci_usb_ops,
119 .platdata_auto_alloc_size = sizeof(struct usb_platdata),
120 .priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
121 .flags = DM_FLAG_ALLOC_PRIV_DMA,
124 static struct pci_device_id ehci_pci_supported[] = {
125 { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
129 U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
131 #endif /* CONFIG_DM_USB */