mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-28 21:09:00 +09:00
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/*
|
|
* (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_NEW) && 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) */
|