1 /*
2 * (C) Copyright 2009 Freescale Semiconductor, Inc.
3 *
4 * (C) Copyright 2008, Excito Elektronik i Sk=E5ne AB
5 *
6 * Author: Tor Krill tor@excito.com
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License as
10 * published by the Free Software Foundation; either version 2 of
11 * the License, or (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
21 * MA 02111-1307 USA
22 */
23
24 #include <common.h>
25 #include <pci.h>
26 #include <usb.h>
27 #include <asm/io.h>
28 #include <usb/ehci-fsl.h>
29
30 #include "ehci.h"
31 #include "ehci-core.h"
32
33 /*
34 * Create the appropriate control structures to manage
35 * a new EHCI host controller.
36 *
37 * Excerpts from linux ehci fsl driver.
38 */
ehci_hcd_init(void)39 int ehci_hcd_init(void)
40 {
41 struct usb_ehci *ehci;
42
43 ehci = (struct usb_ehci *)CONFIG_SYS_MPC8xxx_USB_ADDR;
44 hccr = (struct ehci_hccr *)((uint32_t)&ehci->caplength);
45 hcor = (struct ehci_hcor *)((uint32_t) hccr +
46 HC_LENGTH(ehci_readl(&hccr->cr_capbase)));
47
48 /* Set to Host mode */
49 setbits_le32(&ehci->usbmode, CM_HOST);
50
51 out_be32(&ehci->snoop1, SNOOP_SIZE_2GB);
52 out_be32(&ehci->snoop2, 0x80000000 | SNOOP_SIZE_2GB);
53
54 /* Init phy */
55 if (!strcmp(getenv("usb_phy_type"), "utmi"))
56 out_le32(&(hcor->or_portsc[0]), PORT_PTS_UTMI);
57 else
58 out_le32(&(hcor->or_portsc[0]), PORT_PTS_ULPI);
59
60 /* Enable interface. */
61 setbits_be32(&ehci->control, USB_EN);
62
63 out_be32(&ehci->prictrl, 0x0000000c);
64 out_be32(&ehci->age_cnt_limit, 0x00000040);
65 out_be32(&ehci->sictrl, 0x00000001);
66
67 in_le32(&ehci->usbmode);
68
69 return 0;
70 }
71
72 /*
73 * Destroy the appropriate control structures corresponding
74 * the the EHCI host controller.
75 */
ehci_hcd_stop(void)76 int ehci_hcd_stop(void)
77 {
78 return 0;
79 }
80