1 /*- 2 * Copyright (c) 2007-2008, Juniper Networks, Inc. 3 * All rights reserved. 4 * 5 * This program is free software; you can redistribute it and/or 6 * modify it under the terms of the GNU General Public License as 7 * published by the Free Software Foundation version 2 of 8 * the License. 9 * 10 * This program is distributed in the hope that it will be useful, 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 * GNU General Public License for more details. 14 * 15 * You should have received a copy of the GNU General Public License 16 * along with this program; if not, write to the Free Software 17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 18 * MA 02111-1307 USA 19 */ 20 21 #include <common.h> 22 #include <errno.h> 23 #include <pci.h> 24 #include <usb.h> 25 26 #include "ehci.h" 27 28 #ifdef CONFIG_PCI_EHCI_DEVICE 29 static struct pci_device_id ehci_pci_ids[] = { 30 /* Please add supported PCI EHCI controller ids here */ 31 {0x1033, 0x00E0}, /* NEC */ 32 {0x10B9, 0x5239}, /* ULI1575 PCI EHCI module ids */ 33 {0x12D8, 0x400F}, /* Pericom */ 34 {0, 0} 35 }; 36 #else 37 #endif 38 39 /* 40 * Create the appropriate control structures to manage 41 * a new EHCI host controller. 42 */ 43 int ehci_hcd_init(int index, enum usb_init_type init, 44 struct ehci_hccr **ret_hccr, struct ehci_hcor **ret_hcor) 45 { 46 pci_dev_t pdev; 47 uint32_t cmd; 48 struct ehci_hccr *hccr; 49 struct ehci_hcor *hcor; 50 51 #ifdef CONFIG_PCI_EHCI_DEVICE 52 pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE); 53 #else 54 pdev = pci_find_class(PCI_CLASS_SERIAL_USB_EHCI, index); 55 #endif 56 if (pdev < 0) { 57 printf("EHCI host controller not found\n"); 58 return -1; 59 } 60 61 hccr = (struct ehci_hccr *)pci_map_bar(pdev, 62 PCI_BASE_ADDRESS_0, PCI_REGION_MEM); 63 hcor = (struct ehci_hcor *)((uint32_t) hccr + 64 HC_LENGTH(ehci_readl(&hccr->cr_capbase))); 65 66 debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n", 67 (uint32_t)hccr, (uint32_t)hcor, 68 (uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase))); 69 70 *ret_hccr = hccr; 71 *ret_hcor = hcor; 72 73 /* enable busmaster */ 74 pci_read_config_dword(pdev, PCI_COMMAND, &cmd); 75 cmd |= PCI_COMMAND_MASTER; 76 pci_write_config_dword(pdev, PCI_COMMAND, cmd); 77 return 0; 78 } 79 80 /* 81 * Destroy the appropriate control structures corresponding 82 * the the EHCI host controller. 83 */ 84 int ehci_hcd_stop(int index) 85 { 86 return 0; 87 } 88