xref: /openbmc/u-boot/drivers/usb/host/ehci-pci.c (revision 150c2493)
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 <pci.h>
23 #include <usb.h>
24 
25 #include "ehci.h"
26 
27 #ifdef CONFIG_PCI_EHCI_DEVICE
28 static struct pci_device_id ehci_pci_ids[] = {
29 	/* Please add supported PCI EHCI controller ids here */
30 	{0x1033, 0x00E0},	/* NEC */
31 	{0x10B9, 0x5239},	/* ULI1575 PCI EHCI module ids */
32 	{0x12D8, 0x400F},	/* Pericom */
33 	{0, 0}
34 };
35 #endif
36 
37 /*
38  * Create the appropriate control structures to manage
39  * a new EHCI host controller.
40  */
41 int ehci_hcd_init(int index, struct ehci_hccr **hccr, struct ehci_hcor **hcor)
42 {
43 	pci_dev_t pdev;
44 
45 	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
46 	if (pdev == -1) {
47 		printf("EHCI host controller not found\n");
48 		return -1;
49 	}
50 
51 	*hccr = (struct ehci_hccr *)pci_map_bar(pdev,
52 			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
53 	*hcor = (struct ehci_hcor *)((uint32_t) *hccr +
54 			HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
55 
56 	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
57 			(uint32_t)*hccr, (uint32_t)*hcor,
58 			(uint32_t)HC_LENGTH(ehci_readl(&(*hccr)->cr_capbase)));
59 
60 	return 0;
61 }
62 
63 /*
64  * Destroy the appropriate control structures corresponding
65  * the the EHCI host controller.
66  */
67 int ehci_hcd_stop(int index)
68 {
69 	return 0;
70 }
71