u-boot/cpu/arm1176/s3c64xx/usb.c
Guennadi Liakhovetski 8262813ca0 USB: Add support for OHCI controller on S3C6400
Notice: USB on S3C6400 currently works _only_ with switched off MMU. One could
try to enable the MMU, but map addresses 1-to-1, and disable data cache, then
it should work too and we could still profit from instruction cache.

Signed-off-by: Guennadi Liakhovetski <lg@denx.de>
2008-08-31 00:39:46 +02:00

45 lines
1.2 KiB
C

/*
* URB OHCI HCD (Host Controller Driver) initialization for USB on the S3C64XX.
*
* Copyright (C) 2008,
* Guennadi Liakhovetski, DENX Software Engineering <lg@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>
#include <s3c6400.h>
int usb_cpu_init(void)
{
OTHERS_REG |= 0x10000;
return 0;
}
int usb_cpu_stop(void)
{
OTHERS_REG &= ~0x10000;
return 0;
}
void usb_cpu_init_fail(void)
{
OTHERS_REG &= ~0x10000;
}