138 lines
3.2 KiB
C
138 lines
3.2 KiB
C
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/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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* $Id$
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*
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* Copyright (C) 2014 Michael Sparmann
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <inttypes.h>
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#include "config.h"
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#include "usb.h"
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#include "usb_drv.h"
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#ifdef HAVE_USBSTACK
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#include "usb_core.h"
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#endif
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#include "s5l8702.h"
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#include "clocking-s5l8702.h"
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#include "usb-designware.h"
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const struct usb_dw_config usb_dw_config =
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{
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.phytype = DWC_PHYTYPE_UTMI_16,
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/* Available FIFO memory: 0x820 words */
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.rx_fifosz = 0x360,
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.nptx_fifosz = 0x40, /* 1 dedicated FIFO for IN0 */
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.ptx_fifosz = 0x180, /* 3 dedicated FIFOs for IN1,IN3,IN5 */
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#ifdef USB_DW_ARCH_SLAVE
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.disable_double_buffering = false,
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#else
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.ahb_burst_len = HBSTLEN_INCR8,
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.ahb_threshold = 8,
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#endif
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};
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void usb_dw_target_enable_clocks()
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{
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clockgate_enable(CLOCKGATE_USBOTG, true);
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clockgate_enable(CLOCKGATE_USBPHY, true);
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OPHYPWR = 0; /* PHY: Power up */
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udelay(10);
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OPHYUNK1 = 1;
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OPHYUNK2 = 0xe3f;
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ORSTCON = 1; /* PHY: Assert Software Reset */
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udelay(10);
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ORSTCON = 0; /* PHY: Deassert Software Reset */
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udelay(10);
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OPHYUNK3 = 0x600;
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OPHYCLK = USB_DW_CLOCK;
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udelay(400);
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}
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void usb_dw_target_disable_clocks()
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{
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OPHYPWR = 0xf; /* PHY: Power down */
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udelay(10);
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ORSTCON = 7; /* PHY: Assert Software Reset */
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udelay(10);
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clockgate_enable(CLOCKGATE_USBOTG, false);
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clockgate_enable(CLOCKGATE_USBPHY, false);
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}
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void usb_dw_target_enable_irq()
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{
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VICINTENABLE(IRQ_USB_FUNC >> 5) = 1 << (IRQ_USB_FUNC & 0x1f);
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}
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void usb_dw_target_disable_irq()
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{
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VICINTENCLEAR(IRQ_USB_FUNC >> 5) = 1 << (IRQ_USB_FUNC & 0x1f);
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}
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void usb_dw_target_clear_irq()
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{
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}
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/* RB API */
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static int usb_status = USB_EXTRACTED;
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void usb_enable(bool on)
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{
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#ifdef HAVE_USBSTACK
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if (on) usb_core_init();
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else usb_core_exit();
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#else
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(void)on;
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#endif
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}
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int usb_detect(void)
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{
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return usb_status;
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}
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void usb_insert_int(void)
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{
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usb_status = USB_INSERTED;
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#ifdef USB_STATUS_BY_EVENT
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usb_status_event(USB_INSERTED);
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#endif
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}
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void usb_remove_int(void)
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{
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usb_status = USB_EXTRACTED;
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#ifdef USB_STATUS_BY_EVENT
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usb_status_event(USB_EXTRACTED);
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#endif
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}
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void usb_init_device(void)
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{
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/* Power up the core clocks to allow writing
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to some registers needed to power it down */
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usb_dw_target_disable_irq();
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usb_dw_target_enable_clocks();
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usb_drv_exit();
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}
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