// SPDX-License-Identifier: GPL-2.0 /*- * Copyright (c) 2007-2008, Juniper Networks, Inc. * All rights reserved. */ #include #include #include #include #include #include #include #include #include "ehci.h" /* Information about a USB port */ struct ehci_pci_priv { struct ehci_ctrl ehci; struct phy phy; }; #if CONFIG_IS_ENABLED(DM_USB) static int ehci_pci_init(struct udevice *dev, struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor) { struct ehci_pci_priv *priv = dev_get_priv(dev); struct ehci_hccr *hccr; struct ehci_hcor *hcor; int ret; u32 cmd; ret = generic_setup_phy(dev, &priv->phy, 0); if (ret) return ret; hccr = (struct ehci_hccr *)dm_pci_map_bar(dev, PCI_BASE_ADDRESS_0, 0, 0, PCI_REGION_TYPE, PCI_REGION_MEM); hcor = (struct ehci_hcor *)((uintptr_t) hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); debug("EHCI-PCI init hccr %#lx and hcor %#lx hc_length %d\n", (ulong)hccr, (ulong)hcor, (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); *ret_hccr = hccr; *ret_hcor = hcor; /* enable busmaster */ dm_pci_read_config32(dev, PCI_COMMAND, &cmd); cmd |= PCI_COMMAND_MASTER; dm_pci_write_config32(dev, PCI_COMMAND, cmd); return 0; } #else #ifdef CONFIG_PCI_EHCI_DEVICE static struct pci_device_id ehci_pci_ids[] = { /* Please add supported PCI EHCI controller ids here */ {0x1033, 0x00E0}, /* NEC */ {0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */ {0x12D8, 0x400F}, /* Pericom */ {0, 0} }; #endif static void ehci_pci_legacy_init(pci_dev_t pdev, struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor) { struct ehci_hccr *hccr; struct ehci_hcor *hcor; u32 cmd; hccr = (struct ehci_hccr *)pci_map_bar(pdev, PCI_BASE_ADDRESS_0, PCI_REGION_MEM); hcor = (struct ehci_hcor *)((uintptr_t) hccr + HC_LENGTH(ehci_readl(&hccr->cr_capbase))); debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n", (u32)hccr, (u32)hcor, (u32)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); *ret_hccr = hccr; *ret_hcor = hcor; /* enable busmaster */ pci_read_config_dword(pdev, PCI_COMMAND, &cmd); cmd |= PCI_COMMAND_MASTER; pci_write_config_dword(pdev, PCI_COMMAND, cmd); } /* * Create the appropriate control structures to manage * a new EHCI host controller. */ int ehci_hcd_init(int index, enum usb_init_type init, struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor) { pci_dev_t pdev; #ifdef CONFIG_PCI_EHCI_DEVICE pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE); #else pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index); #endif if (pdev < 0) { printf("EHCI host controller not found\n"); return -1; } ehci_pci_legacy_init(pdev, ret_hccr, ret_hcor); return 0; } /* * Destroy the appropriate control structures corresponding * the the EHCI host controller. */ int ehci_hcd_stop(int index) { return 0; } #endif /* !CONFIG_IS_ENABLED(DM_USB) */ #if CONFIG_IS_ENABLED(DM_USB) static int ehci_pci_probe(struct udevice *dev) { struct ehci_hccr *hccr; struct ehci_hcor *hcor; int ret; ret = ehci_pci_init(dev, &hccr, &hcor); if (ret) return ret; return ehci_register(dev, hccr, hcor, NULL, 0, USB_INIT_HOST); } static int ehci_pci_remove(struct udevice *dev) { struct ehci_pci_priv *priv = dev_get_priv(dev); int ret; ret = ehci_deregister(dev); if (ret) return ret; return generic_shutdown_phy(&priv->phy); } static const struct udevice_id ehci_pci_ids[] = { { .compatible = "ehci-pci" }, { } }; U_BOOT_DRIVER(ehci_pci) = { .name = "ehci_pci", .id = UCLASS_USB, .probe = ehci_pci_probe, .remove = ehci_pci_remove, .of_match = ehci_pci_ids, .ops = &ehci_usb_ops, .plat_auto = sizeof(struct usb_plat), .priv_auto = sizeof(struct ehci_pci_priv), .flags = DM_FLAG_ALLOC_PRIV_DMA, }; static struct pci_device_id ehci_pci_supported[] = { { PCI_DEVICE_CLASS(PCI_CLASS_SERIAL_USB_EHCI, ~0) }, {}, }; U_BOOT_PCI_DEVICE(ehci_pci, ehci_pci_supported); #endif /* CONFIG_IS_ENABLED(DM_USB) */