xref: /openbmc/u-boot/drivers/usb/host/ehci-pci.c (revision 080a46ea)
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},	/* NEC */
32 	{0x10B9, 0x5239},	/* ULI1575 PCI EHCI module ids */
33 	{0x12D8, 0x400F},	/* Pericom */
34 	{0, 0}
35 };
36 #endif
37 
38 /*
39  * Create the appropriate control structures to manage
40  * a new EHCI host controller.
41  */
42 int ehci_hcd_init(void)
43 {
44 	pci_dev_t pdev;
45 
46 	pdev = pci_find_devices(ehci_pci_ids, CONFIG_PCI_EHCI_DEVICE);
47 	if (pdev == -1) {
48 		printf("EHCI host controller not found\n");
49 		return -1;
50 	}
51 
52 	hccr = (struct ehci_hccr *)pci_map_bar(pdev,
53 			PCI_BASE_ADDRESS_0, PCI_REGION_MEM);
54 	hcor = (struct ehci_hcor *)((uint32_t) hccr +
55 			HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
56 
57 	debug("EHCI-PCI init hccr 0x%x and hcor 0x%x hc_length %d\n",
58 			(uint32_t)hccr, (uint32_t)hcor,
59 			(uint32_t)HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
60 
61 	return 0;
62 }
63 
64 /*
65  * Destroy the appropriate control structures corresponding
66  * the the EHCI host controller.
67  */
68 int ehci_hcd_stop(void)
69 {
70 	return 0;
71 }
72