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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2006 by Linus Nielsen Feltzing
*
* All files in this archive are subject to the GNU General Public License.
* See the file COPYING in the source tree root for full license agreement.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#include "config.h"
#include "cpu.h"
#include "system.h"
#include "kernel.h"
#include "ata.h"
#include "usb.h"
#include "usb_core.h"
#include "clkctl-imx31.h"
#include "mc13783.h"
static int usb_status = USB_EXTRACTED;
void usb_set_status(bool plugged)
{
usb_status = plugged ? USB_INSERTED : USB_EXTRACTED;
}
int usb_detect(void)
{
return usb_status;
}
/* Read the immediate state of the cable from the PMIC */
bool usb_plugged(void)
{
return mc13783_read(MC13783_INTERRUPT_SENSE0) & MC13783_USB4V4;
}
void usb_init_device(void)
{
mc13783_clear(MC13783_INTERRUPT_MASK0, MC13783_USB4V4);
}
void usb_enable(bool on)
{
if (on)
{
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_ON_ALL);
GPIO3_DR &= ~(1 << 16); /* Reset ISP1504 */
GPIO3_DR |= (1 << 16);
GPIO1_DR &= ~(1 << 30); /* Select ISP1504 */
usb_core_init();
}
else
{
/* Module clock should be on since this could be called first */
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_ON_ALL);
GPIO1_DR &= ~(1 << 30); /* Select ISP1504 */
usb_core_exit();
GPIO1_DR |= (1 << 30); /* Deselect ISP1504 */
imx31_clkctl_module_clock_gating(CG_USBOTG, CGM_OFF);
}
}
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