1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2007-2008, Juniper Networks, Inc.
18 /* Information about a USB port */
19 struct ehci_pci_priv {
20 struct ehci_ctrl ehci;
24 #if CONFIG_IS_ENABLED(DM_USB)
25 static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
26 struct ehci_hcor **ret_hcor)
28 struct ehci_pci_priv *priv = dev_get_priv(dev);
29 struct ehci_hccr *hccr;
30 struct ehci_hcor *hcor;
34 ret = generic_setup_phy(dev, &priv->phy, 0);
38 hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
39 PCI_BASE_ADDRESS_0, 0, 0, PCI_REGION_TYPE,
41 hcor = (struct ehci_hcor *)((uintptr_t) hccr +
42 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
44 debug("EHCI-PCI init hccr %#lx and hcor %#lx hc_length %d\n",
45 (ulong)hccr, (ulong)hcor,
46 (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
51 /* enable busmaster */
52 dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
53 cmd |= PCI_COMMAND_MASTER;
54 dm_pci_write_config32(dev, PCI_COMMAND, cmd);
61 #ifdef CONFIG_PCI_EHCI_DEVICE
62 static struct pci_device_id ehci_pci_ids[] = {
63 /* Please add supported PCI EHCI controller ids here */
64 {0x1033, 0x00E0}, /* NEC */
65 {0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
66 {0x12D8, 0x400F}, /* Pericom */
71 static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
72 struct ehci_hcor **ret_hcor)
74 struct ehci_hccr *hccr;
75 struct ehci_hcor *hcor;
78 hccr = (struct ehci_hccr *)pci_map_bar(pdev,
79 PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
80 hcor = (struct ehci_hcor *)((uintptr_t) hccr +
81 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
83 debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
85 (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
90 /* enable busmaster */
91 pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
92 cmd |= PCI_COMMAND_MASTER;
93 pci_write_config_dword(pdev, PCI_COMMAND, cmd);
97 * Create the appropriate control structures to manage
98 * a new EHCI host controller.
100 int ehci_hcd_init(int index, enum usb_init_type init,
101 struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
105 #ifdef CONFIG_PCI_EHCI_DEVICE
106 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
108 pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
111 printf("EHCI host controller not found\n");
114 ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor);
120 * Destroy the appropriate control structures corresponding
121 * the the EHCI host controller.
123 int ehci_hcd_stop(int index)
127 #endif /* !CONFIG_IS_ENABLED(DM_USB) */
129 #if CONFIG_IS_ENABLED(DM_USB)
130 static int ehci_pci_probe(struct udevice *dev)
132 struct ehci_hccr *hccr;
133 struct ehci_hcor *hcor;
136 ret = ehci_pci_init(dev, &hccr, &hcor);
140 return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
143 static int ehci_pci_remove(struct udevice *dev)
145 struct ehci_pci_priv *priv = dev_get_priv(dev);
148 ret = ehci_deregister(dev);
152 return generic_shutdown_phy(&priv->phy);
155 static const struct udevice_id ehci_pci_ids[] = {
156 { .compatible = "ehci-pci" },
160 U_BOOT_DRIVER(ehci_pci) = {
163 .probe = ehci_pci_probe,
164 .remove = ehci_pci_remove,
165 .of_match = ehci_pci_ids,
166 .ops = &ehci_usb_ops,
167 .plat_auto = sizeof(struct usb_plat),
168 .priv_auto = sizeof(struct ehci_pci_priv),
169 .flags = DM_FLAG_ALLOC_PRIV_DMA,
172 static struct pci_device_id ehci_pci_supported[] = {
173 { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
177 U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
179 #endif /* CONFIG_IS_ENABLED(DM_USB) */