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/*
* (C) Copyright 2006
* DENX Software Engineering <mk@denx.de>
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#include <common.h>
#if defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT)
# ifdef CONFIG_AT91RM9200
#include <asm/arch/hardware.h>
int usb_cpu_init()
{
/* Enable USB host clock. */
*AT91C_PMC_SCER = AT91C_PMC_UHP; /* 48MHz clock enabled for UHP */
*AT91C_PMC_PCER = 1 << AT91C_ID_UHP; /* Peripheral Clock Enable Register */
return 0;
}
int usb_cpu_stop()
{
/* Initialization failed */
*AT91C_PMC_PCDR = 1 << AT91C_ID_UHP; /* Peripheral Clock Disable Register */
*AT91C_PMC_SCDR = AT91C_PMC_UHP; /* 48MHz clock disabled for UHP */
return 0;
}
int usb_cpu_init_fail()
{
usb_cpu_stop();
}
# endif /* CONFIG_AT91RM9200 */
#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */
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