1 // SPDX-License-Identifier: GPL-2.0
3 * Copyright (c) 2007-2008, Juniper Networks, Inc.
16 /* Information about a USB port */
17 struct ehci_pci_priv {
18 struct ehci_ctrl ehci;
22 #if CONFIG_IS_ENABLED(DM_USB)
23 static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr,
24 struct ehci_hcor **ret_hcor)
26 struct ehci_pci_priv *priv = dev_get_priv(dev);
27 struct ehci_hccr *hccr;
28 struct ehci_hcor *hcor;
32 ret = ehci_setup_phy(dev, &priv->phy, 0);
36 hccr = (struct ehci_hccr *)dm_pci_map_bar(dev,
37 PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
38 hcor = (struct ehci_hcor *)((uintptr_t) hccr +
39 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
41 debug("EHCI-PCI init hccr %#lx and hcor %#lx hc_length %d\n",
42 (ulong)hccr, (ulong)hcor,
43 (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
48 /* enable busmaster */
49 dm_pci_read_config32(dev, PCI_COMMAND, &cmd);
50 cmd |= PCI_COMMAND_MASTER;
51 dm_pci_write_config32(dev, PCI_COMMAND, cmd);
58 #ifdef CONFIG_PCI_EHCI_DEVICE
59 static struct pci_device_id ehci_pci_ids[] = {
60 /* Please add supported PCI EHCI controller ids here */
61 {0x1033, 0x00E0}, /* NEC */
62 {0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */
63 {0x12D8, 0x400F}, /* Pericom */
68 static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr,
69 struct ehci_hcor **ret_hcor)
71 struct ehci_hccr *hccr;
72 struct ehci_hcor *hcor;
75 hccr = (struct ehci_hccr *)pci_map_bar(pdev,
76 PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
77 hcor = (struct ehci_hcor *)((uintptr_t) hccr +
78 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
80 debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
82 (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
87 /* enable busmaster */
88 pci_read_config_dword(pdev, PCI_COMMAND, &cmd);
89 cmd |= PCI_COMMAND_MASTER;
90 pci_write_config_dword(pdev, PCI_COMMAND, cmd);
94 * Create the appropriate control structures to manage
95 * a new EHCI host controller.
97 int ehci_hcd_init(int index, enum usb_init_type init,
98 struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor)
102 #ifdef CONFIG_PCI_EHCI_DEVICE
103 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
105 pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index);
108 printf("EHCI host controller not found\n");
111 ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor);
117 * Destroy the appropriate control structures corresponding
118 * the the EHCI host controller.
120 int ehci_hcd_stop(int index)
124 #endif /* !CONFIG_IS_ENABLED(DM_USB) */
126 #if CONFIG_IS_ENABLED(DM_USB)
127 static int ehci_pci_probe(struct udevice *dev)
129 struct ehci_hccr *hccr;
130 struct ehci_hcor *hcor;
133 ret = ehci_pci_init(dev, &hccr, &hcor);
137 return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST);
140 static int ehci_pci_remove(struct udevice *dev)
142 struct ehci_pci_priv *priv = dev_get_priv(dev);
145 ret = ehci_deregister(dev);
149 return ehci_shutdown_phy(dev, &priv->phy);
152 static const struct udevice_id ehci_pci_ids[] = {
153 { .compatible = "ehci-pci" },
157 U_BOOT_DRIVER(ehci_pci) = {
160 .probe = ehci_pci_probe,
161 .remove = ehci_pci_remove,
162 .of_match = ehci_pci_ids,
163 .ops = &ehci_usb_ops,
164 .platdata_auto_alloc_size = sizeof(struct usb_platdata),
165 .priv_auto_alloc_size = sizeof(struct ehci_pci_priv),
166 .flags = DM_FLAG_ALLOC_PRIV_DMA,
169 static struct pci_device_id ehci_pci_supported[] = {
170 { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) },
174 U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported);
176 #endif /* CONFIG_IS_ENABLED(DM_USB) */