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Markus Klotzbuecher301f1aa2006-05-23 13:38:35 +02001/*
2 * (C) Copyright 2006
3 * DENX Software Engineering <mk@denx.de>
4 *
5 * See file CREDITS for list of people who contributed to this
6 * project.
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
Markus Klotzbuecher7b59b3c2006-11-27 11:44:58 +010026#if defined(CONFIG_USB_OHCI_NEW) && defined(CFG_USB_OHCI_CPU_INIT)
Markus Klotzbuecher301f1aa2006-05-23 13:38:35 +020027# ifdef CONFIG_AT91RM9200
28
29#include <asm/arch/hardware.h>
30
Jean-Christophe PLAGNIOL-VILLARD9c4884f2007-10-19 08:10:15 +020031int usb_cpu_init(void)
Markus Klotzbuecher301f1aa2006-05-23 13:38:35 +020032{
33 /* Enable USB host clock. */
34 *AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */
35 *AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */
36 return 0;
37}
38
Jean-Christophe PLAGNIOL-VILLARD9c4884f2007-10-19 08:10:15 +020039int usb_cpu_stop(void)
Markus Klotzbuecher301f1aa2006-05-23 13:38:35 +020040{
41 /* Initialization failed */
42 *AT91C_PMC_PCDR = 1 << AT91C_ID_UHP; /* Peripheral Clock Disable Register */
43 *AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */
44 return 0;
45}
Markus Klotzbuecherddf83a22006-05-30 16:56:14 +020046
Jean-Christophe PLAGNIOL-VILLARD9c4884f2007-10-19 08:10:15 +020047int usb_cpu_init_fail(void)
Markus Klotzbuecherddf83a22006-05-30 16:56:14 +020048{
Jean-Christophe PLAGNIOL-VILLARD9c4884f2007-10-19 08:10:15 +020049 return usb_cpu_stop();
Markus Klotzbuecherddf83a22006-05-30 16:56:14 +020050}
51
Markus Klotzbuecher301f1aa2006-05-23 13:38:35 +020052# endif /* CONFIG_AT91RM9200 */
53#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */