xref: /openbmc/u-boot/drivers/usb/host/ehci-pci.c (revision ed56fb1d)
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 #include "ehci-core.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},
32 	{0, 0}
33 };
34 #endif
35 
36 /*
37  * Create the appropriate control structures to manage
38  * a new EHCI host controller.
39  */
40 int ehci_hcd_init(void)
41 {
42 	pci_dev_t pdev;
43 	uint32_t addr;
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 	pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &addr);
52 	hccr = (struct ehci_hccr *)addr;
53 	hcor = (struct ehci_hcor *)((uint32_t) hccr +
54 			HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
55 
56 	return 0;
57 }
58 
59 /*
60  * Destroy the appropriate control structures corresponding
61  * the the EHCI host controller.
62  */
63 int ehci_hcd_stop(void)
64 {
65 	return 0;
66 }
67