139 lines
3.3 KiB
C
139 lines
3.3 KiB
C
|
/***************************************************************************
|
||
|
|
* __________ __ ___.
|
||
|
|
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
|
||
|
|
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
|
||
|
|
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
|
||
|
|
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
|
||
|
|
* \/ \/ \/ \/ \/
|
||
|
|
* $Id$
|
||
|
|
*
|
||
|
|
* Copyright (C) 2014 Michael Sparmann
|
||
|
|
*
|
||
|
|
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
|
||
|
|
* KIND, either express or implied.
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
#include <inttypes.h>
|
||
|
|
|
||
|
|
#include "config.h"
|
||
|
|
#include "usb.h"
|
||
|
|
#include "usb_drv.h"
|
||
|
|
#ifdef HAVE_USBSTACK
|
||
|
|
#include "usb_core.h"
|
||
|
|
#include "power.h"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#include "s5l8700.h"
|
||
|
|
#include "usb-designware.h"
|
||
|
|
|
||
|
|
|
||
|
|
const struct usb_dw_config usb_dw_config =
|
||
|
|
{
|
||
|
|
/* PHY must run at 60MHz, otherwise there are spurious -EPROTO
|
||
|
|
errors, probably related with GHWCFG4_MIN_AHB_FREQ. */
|
||
|
|
.phytype = DWC_PHYTYPE_UTMI_8,
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Total available FIFO memory: 0x500 words.
|
||
|
|
*/
|
||
|
|
.rx_fifosz = 0x220,
|
||
|
|
/* nptx_fifosz seems limited to 0x200 due to some internal counter
|
||
|
|
misbehaviour (TBC). */
|
||
|
|
.nptx_fifosz = 0x200,
|
||
|
|
/* ptx_fifosz is not writeable (fixed to 0x300), anyway it seems
|
||
|
|
internally limited to a small number, aroung 0x10..0x20 (TBC),
|
||
|
|
we use_ptxfifo_as_plain_buffer to deal with this issue. */
|
||
|
|
.ptx_fifosz = 0x80,
|
||
|
|
.use_ptxfifo_as_plain_buffer = true,
|
||
|
|
|
||
|
|
#ifdef USB_DW_ARCH_SLAVE
|
||
|
|
.disable_double_buffering = false,
|
||
|
|
#else
|
||
|
|
.ahb_burst_len = HBSTLEN_INCR4,
|
||
|
|
#endif
|
||
|
|
};
|
||
|
|
|
||
|
|
void usb_dw_target_enable_clocks()
|
||
|
|
{
|
||
|
|
PWRCON &= ~0x4000;
|
||
|
|
PWRCONEXT &= ~0x800;
|
||
|
|
|
||
|
|
OPHYPWR = 0; /* PHY: Power up */
|
||
|
|
udelay(10);
|
||
|
|
OPHYUNK1 = 1;
|
||
|
|
OPHYUNK2 = 0xe3f;
|
||
|
|
ORSTCON = 1; /* PHY: Assert Software Reset */
|
||
|
|
udelay(10);
|
||
|
|
ORSTCON = 0; /* PHY: Deassert Software Reset */
|
||
|
|
udelay(10);
|
||
|
|
OPHYUNK3 = 0x600;
|
||
|
|
OPHYCLK = USB_DW_CLOCK;
|
||
|
|
udelay(400);
|
||
|
|
}
|
||
|
|
|
||
|
|
void usb_dw_target_disable_clocks()
|
||
|
|
{
|
||
|
|
OPHYPWR = 0xf; /* PHY: Power down */
|
||
|
|
udelay(10);
|
||
|
|
ORSTCON = 7; /* PHY: Assert Software Reset */
|
||
|
|
udelay(10);
|
||
|
|
|
||
|
|
PWRCON |= 0x4000;
|
||
|
|
PWRCONEXT |= 0x800;
|
||
|
|
}
|
||
|
|
|
||
|
|
void usb_dw_target_enable_irq()
|
||
|
|
{
|
||
|
|
INTMSK |= INTMSK_USB_OTG;
|
||
|
|
}
|
||
|
|
|
||
|
|
void usb_dw_target_disable_irq()
|
||
|
|
{
|
||
|
|
INTMSK &= ~INTMSK_USB_OTG;
|
||
|
|
}
|
||
|
|
|
||
|
|
void usb_dw_target_clear_irq()
|
||
|
|
{
|
||
|
|
SRCPND |= INTMSK_USB_OTG;
|
||
|
|
}
|
||
|
|
|
||
|
|
/* RB API fuctions */
|
||
|
|
void usb_enable(bool on)
|
||
|
|
{
|
||
|
|
#ifdef HAVE_USBSTACK
|
||
|
|
if (on){
|
||
|
|
cpu_boost(1);
|
||
|
|
usb_core_init();
|
||
|
|
} else {
|
||
|
|
usb_core_exit();
|
||
|
|
cpu_boost(0);
|
||
|
|
}
|
||
|
|
#else
|
||
|
|
(void)on;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int usb_detect(void)
|
||
|
|
{
|
||
|
|
#ifdef HAVE_USBSTACK
|
||
|
|
if (power_input_status() & POWER_INPUT_USB)
|
||
|
|
return USB_INSERTED;
|
||
|
|
#endif
|
||
|
|
return USB_EXTRACTED;
|
||
|
|
}
|
||
|
|
|
||
|
|
void usb_init_device(void)
|
||
|
|
{
|
||
|
|
/* Power up the core clocks to allow writing
|
||
|
|
to some registers needed to power it down */
|
||
|
|
usb_dw_target_disable_irq();
|
||
|
|
usb_dw_target_enable_clocks();
|
||
|
|
|
||
|
|
usb_drv_exit();
|
||
|
|
}
|