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