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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)
# if defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410)
#if defined(CONFIG_S3C2400)
# include <s3c2400.h>
#elif defined(CONFIG_S3C2410)
# include <s3c2410.h>
#endif
int usb_cpu_init (void)
{
S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
S3C24X0_GPIO * const gpio = S3C24X0_GetBase_GPIO();
/*
* Set the 48 MHz UPLL clocking. Values are taken from
* "PLL value selection guide", 6-23, s3c2400_UM.pdf.
*/
clk_power->UPLLCON = ((40 << 12) + (1 << 4) + 2);
gpio->MISCCR |= 0x8; /* 1 = use pads related USB for USB host */
/*
* Enable USB host clock.
*/
clk_power->CLKCON |= (1 << 4);
return 0;
}
int usb_cpu_stop (void)
{
S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
/* may not want to do this */
clk_power->CLKCON &= ~(1 << 4);
return 0;
}
int usb_cpu_init_fail (void)
{
S3C24X0_CLOCK_POWER * const clk_power = S3C24X0_GetBase_CLOCK_POWER();
clk_power->CLKCON &= ~(1 << 4);
return 0;
}
# endif /* defined(CONFIG_S3C2400) || defined(CONFIG_S3C2410) */
#endif /* defined(CONFIG_USB_OHCI) && defined(CFG_USB_OHCI_CPU_INIT) */
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