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USB: Add generic ULPI layer and a viewport

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Add partial ULPI specification implementation that should be enough to
interface the ULPI PHYs in the boot loader context.
Add a viewport implementation for Chipidea/ARC based controllers.

Signed-off-by: Jana Rapava <fermata7@gmail.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Cc: Remy Bohmer <linux@bohmer.net>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Wolfgang Grandegger <wg@denx.de>
Cc: Simon Glass <sjg@chromium.org>
This commit is contained in:
Jana Rapava 2011-12-05 11:07:00 +02:00 committed by Remy Bohmer
parent 3874b6d674
commit f93022c3b1
5 changed files with 688 additions and 0 deletions
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1
Makefile
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@ -286,6 +286,7 @@ LIBS += drivers/usb/gadget/libusb_gadget.o
LIBS += drivers/usb/host/libusb_host.o
LIBS += drivers/usb/musb/libusb_musb.o
LIBS += drivers/usb/phy/libusb_phy.o
LIBS += drivers/usb/ulpi/libusb_ulpi.o
LIBS += drivers/video/libvideo.o
LIBS += drivers/watchdog/libwatchdog.o
LIBS += common/libcommon.o

44
drivers/usb/ulpi/Makefile Normal file
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#
# Copyright (C) 2011 Jana Rapava <fermata7@gmail.com>
# 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.
#
include $(TOPDIR)/config.mk
LIB := $(obj)libusb_ulpi.o
COBJS-$(CONFIG_USB_ULPI) += ulpi.o
COBJS-$(CONFIG_USB_ULPI_VIEWPORT) += ulpi-viewport.o
COBJS := $(COBJS-y)
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
all: $(LIB)
$(LIB): $(obj).depend $(OBJS)
$(call cmd_link_o_target, $(OBJS))
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################

118
drivers/usb/ulpi/ulpi-viewport.c Normal file
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/*
* Copyright (C) 2011 Jana Rapava <fermata7@gmail.com>
* Copyright (C) 2011 CompuLab, Ltd. <www.compulab.co.il>
*
* Authors: Jana Rapava <fermata7@gmail.com>
* Igor Grinberg <grinberg@compulab.co.il>
*
* Based on:
* linux/drivers/usb/otg/ulpi_viewport.c
*
* Original Copyright follow:
* Copyright (C) 2011 Google, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#include <common.h>
#include <asm/io.h>
#include <usb/ulpi.h>
/* ULPI viewport control bits */
#define ULPI_SS (1 << 27)
#define ULPI_RWCTRL (1 << 29)
#define ULPI_RWRUN (1 << 30)
#define ULPI_WU (1 << 31)
/*
* Wait for the ULPI request to complete
*
* @ulpi_viewport - the address of the viewport
* @mask - expected value to wait for
*
* returns 0 on mask match, ULPI_ERROR on time out.
*/
static int ulpi_wait(u32 ulpi_viewport, u32 mask)
{
int timeout = CONFIG_USB_ULPI_TIMEOUT;
/* Wait for the bits in mask to become zero. */
while (--timeout) {
if ((readl(ulpi_viewport) & mask) == 0)
return 0;
udelay(1);
}
return ULPI_ERROR;
}
/*
* Wake the ULPI PHY up for communication
*
* returns 0 on success.
*/
static int ulpi_wakeup(u32 ulpi_viewport)
{
int err;
if (readl(ulpi_viewport) & ULPI_SS)
return 0; /* already awake */
writel(ULPI_WU, ulpi_viewport);
err = ulpi_wait(ulpi_viewport, ULPI_WU);
if (err)
printf("ULPI wakeup timed out\n");
return err;
}
/*
* Issue a ULPI read/write request
*
* @value - the ULPI request
*/
static int ulpi_request(u32 ulpi_viewport, u32 value)
{
int err;
err = ulpi_wakeup(ulpi_viewport);
if (err)
return err;
writel(value, ulpi_viewport);
err = ulpi_wait(ulpi_viewport, ULPI_RWRUN);
if (err)
printf("ULPI request timed out\n");
return err;
}
u32 ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value)
{
u32 val = ULPI_RWRUN | ULPI_RWCTRL | ((u32)reg << 16) | (value & 0xff);
return ulpi_request(ulpi_viewport, val);
}
u32 ulpi_read(u32 ulpi_viewport, u8 *reg)
{
u32 err;
u32 val = ULPI_RWRUN | ((u32)reg << 16);
err = ulpi_request(ulpi_viewport, val);
if (err)
return err;
return (readl(ulpi_viewport) >> 8) & 0xff;
}

227
drivers/usb/ulpi/ulpi.c Normal file
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/*
* Copyright (C) 2011 Jana Rapava <fermata7@gmail.com>
* Copyright (C) 2011 CompuLab, Ltd. <www.compulab.co.il>
*
* Authors: Jana Rapava <fermata7@gmail.com>
* Igor Grinberg <grinberg@compulab.co.il>
*
* Based on:
* linux/drivers/usb/otg/ulpi.c
* Generic ULPI USB transceiver support
*
* Original Copyright follow:
* Copyright (C) 2009 Daniel Mack <daniel@caiaq.de>
*
* Based on sources from
*
* Sascha Hauer <s.hauer@pengutronix.de>
* Freescale Semiconductors
*
* 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.
*/
#include <common.h>
#include <exports.h>
#include <usb/ulpi.h>
#define ULPI_ID_REGS_COUNT 4
#define ULPI_TEST_VALUE 0x55 /* 0x55 == 0b01010101 */
static struct ulpi_regs *ulpi = (struct ulpi_regs *)0;
static int ulpi_integrity_check(u32 ulpi_viewport)
{
u32 err, val, tval = ULPI_TEST_VALUE;
int i;
/* Use the 'special' test value to check all bits */
for (i = 0; i < 2; i++, tval <<= 1) {
err = ulpi_write(ulpi_viewport, &ulpi->scratch, tval);
if (err)
return err;
val = ulpi_read(ulpi_viewport, &ulpi->scratch);
if (val != tval) {
printf("ULPI integrity check failed\n");
return val;
}
}
return 0;
}
int ulpi_init(u32 ulpi_viewport)
{
u32 val, id = 0;
u8 *reg = &ulpi->product_id_high;
int i;
/* Assemble ID from four ULPI ID registers (8 bits each). */
for (i = 0; i < ULPI_ID_REGS_COUNT; i++) {
val = ulpi_read(ulpi_viewport, reg - i);
if (val == ULPI_ERROR)
return val;
id = (id << 8) | val;
}
/* Split ID into vendor and product ID. */
debug("ULPI transceiver ID 0x%04x:0x%04x\n", id >> 16, id & 0xffff);
return ulpi_integrity_check(ulpi_viewport);
}
int ulpi_select_transceiver(u32 ulpi_viewport, u8 speed)
{
u8 tspeed = ULPI_FC_FULL_SPEED;
u32 val;
switch (speed) {
case ULPI_FC_HIGH_SPEED:
case ULPI_FC_FULL_SPEED:
case ULPI_FC_LOW_SPEED:
case ULPI_FC_FS4LS:
tspeed = speed;
break;
default:
printf("ULPI: %s: wrong transceiver speed specified, "
"falling back to full speed\n", __func__);
}
val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl);
if (val == ULPI_ERROR)
return val;
/* clear the previous speed setting */
val = (val & ~ULPI_FC_XCVRSEL_MASK) | tspeed;
return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val);
}
int ulpi_set_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind)
{
u32 flags = ULPI_OTG_DRVVBUS;
u8 *reg = on ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;
if (ext_power)
flags |= ULPI_OTG_DRVVBUS_EXT;
if (ext_ind)
flags |= ULPI_OTG_EXTVBUSIND;
return ulpi_write(ulpi_viewport, reg, flags);
}
int ulpi_set_pd(u32 ulpi_viewport, int enable)
{
u32 val = ULPI_OTG_DP_PULLDOWN | ULPI_OTG_DM_PULLDOWN;
u8 *reg = enable ? &ulpi->otg_ctrl_set : &ulpi->otg_ctrl_clear;
return ulpi_write(ulpi_viewport, reg, val);
}
int ulpi_opmode_sel(u32 ulpi_viewport, u8 opmode)
{
u8 topmode = ULPI_FC_OPMODE_NORMAL;
u32 val;
switch (opmode) {
case ULPI_FC_OPMODE_NORMAL:
case ULPI_FC_OPMODE_NONDRIVING:
case ULPI_FC_OPMODE_DISABLE_NRZI:
case ULPI_FC_OPMODE_NOSYNC_NOEOP:
topmode = opmode;
break;
default:
printf("ULPI: %s: wrong OpMode specified, "
"falling back to OpMode Normal\n", __func__);
}
val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl);
if (val == ULPI_ERROR)
return val;
/* clear the previous opmode setting */
val = (val & ~ULPI_FC_OPMODE_MASK) | topmode;
return ulpi_write(ulpi_viewport, &ulpi->function_ctrl, val);
}
int ulpi_serial_mode_enable(u32 ulpi_viewport, u8 smode)
{
switch (smode) {
case ULPI_IFACE_6_PIN_SERIAL_MODE:
case ULPI_IFACE_3_PIN_SERIAL_MODE:
break;
default:
printf("ULPI: %s: unrecognized Serial Mode specified\n",
__func__);
return ULPI_ERROR;
}
return ulpi_write(ulpi_viewport, &ulpi->iface_ctrl_set, smode);
}
int ulpi_suspend(u32 ulpi_viewport)
{
u32 err;
err = ulpi_write(ulpi_viewport, &ulpi->function_ctrl_clear,
ULPI_FC_SUSPENDM);
if (err)
printf("ULPI: %s: failed writing the suspend bit\n", __func__);
return err;
}
/*
* Wait for ULPI PHY reset to complete.
* Actual wait for reset must be done in a view port specific way,
* because it involves checking the DIR line.
*/
static int __ulpi_reset_wait(u32 ulpi_viewport)
{
u32 val;
int timeout = CONFIG_USB_ULPI_TIMEOUT;
/* Wait for the RESET bit to become zero */
while (--timeout) {
/*
* This function is generic and suppose to work
* with any viewport, so we cheat here and don't check
* for the error of ulpi_read(), if there is one, then
* there will be a timeout.
*/
val = ulpi_read(ulpi_viewport, &ulpi->function_ctrl);
if (!(val & ULPI_FC_RESET))
return 0;
udelay(1);
}
printf("ULPI: %s: reset timed out\n", __func__);
return ULPI_ERROR;
}
int ulpi_reset_wait(u32) __attribute__((weak, alias("__ulpi_reset_wait")));
int ulpi_reset(u32 ulpi_viewport)
{
u32 err;
err = ulpi_write(ulpi_viewport,
&ulpi->function_ctrl_set, ULPI_FC_RESET);
if (err) {
printf("ULPI: %s: failed writing reset bit\n", __func__);
return err;
}
return ulpi_reset_wait(ulpi_viewport);
}

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include/usb/ulpi.h Normal file
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/*
* Generic ULPI interface.
*
* Copyright (C) 2011 Jana Rapava <fermata7@gmail.com>
* Copyright (C) 2011 CompuLab, Ltd. <www.compulab.co.il>
*
* Authors: Jana Rapava <fermata7@gmail.com>
* Igor Grinberg <grinberg@compulab.co.il>
*
* Register offsets taken from:
* linux/include/linux/usb/ulpi.h
*
* Original Copyrights follow:
* Copyright (C) 2010 Nokia Corporation
*
* This software is distributed under the terms of the GNU General
* Public License ("GPL") as published by the Free Software Foundation,
* version 2 of that License.
*/
#ifndef __USB_ULPI_H__
#define __USB_ULPI_H__
#define ULPI_ERROR (1 << 8) /* overflow from any register value */
#ifndef CONFIG_USB_ULPI_TIMEOUT
#define CONFIG_USB_ULPI_TIMEOUT 1000 /* timeout in us */
#endif
/*
* Initialize the ULPI transciever and check the interface integrity.
* @ulpi_viewport - the address of the ULPI viewport register.
*
* returns 0 on success, ULPI_ERROR on failure.
*/
int ulpi_init(u32 ulpi_viewport);
/*
* Select transceiver speed.
* @speed - ULPI_FC_HIGH_SPEED, ULPI_FC_FULL_SPEED (default),
* ULPI_FC_LOW_SPEED, ULPI_FC_FS4LS
* returns 0 on success, ULPI_ERROR on failure.
*/
int ulpi_select_transceiver(u32 ulpi_viewport, u8 speed);
/*
* Enable/disable VBUS.
* @ext_power - external VBUS supply is used (default is false)
* @ext_indicator - external VBUS over-current indicator is used
*
* returns 0 on success, ULPI_ERROR on failure.
*/
int ulpi_enable_vbus(u32 ulpi_viewport, int on, int ext_power, int ext_ind);
/*
* Enable/disable pull-down resistors on D+ and D- USB lines.
*
* returns 0 on success, ULPI_ERROR on failure.
*/
int ulpi_set_pd(u32 ulpi_viewport, int enable);
/*
* Select OpMode.
* @opmode - ULPI_FC_OPMODE_NORMAL (default), ULPI_FC_OPMODE_NONDRIVING,
* ULPI_FC_OPMODE_DISABLE_NRZI, ULPI_FC_OPMODE_NOSYNC_NOEOP
*
* returns 0 on success, ULPI_ERROR on failure.
*/
int ulpi_opmode_sel(u32 ulpi_viewport, u8 opmode);
/*
* Switch to Serial Mode.
* @smode - ULPI_IFACE_6_PIN_SERIAL_MODE or ULPI_IFACE_3_PIN_SERIAL_MODE
*
* returns 0 on success, ULPI_ERROR on failure.
*
* Notes:
* Switches immediately to Serial Mode.
* To return from Serial Mode, STP line needs to be asserted.
*/
int ulpi_serial_mode_enable(u32 ulpi_viewport, u8 smode);
/*
* Put PHY into low power mode.
*
* returns 0 on success, ULPI_ERROR on failure.
*
* Notes:
* STP line must be driven low to keep the PHY in suspend.
* To resume the PHY, STP line needs to be asserted.
*/
int ulpi_suspend(u32 ulpi_viewport);
/*
* Reset the transceiver. ULPI interface and registers are not affected.
*
* returns 0 on success, ULPI_ERROR on failure.
*/
int ulpi_reset(u32 ulpi_viewport);
/* ULPI access methods below must be implemented for each ULPI viewport. */
/*
* Write to the ULPI PHY register via the viewport.
* @reg - the ULPI register (one of the fields in struct ulpi_regs).
* @value - the value - only 8 lower bits are used, others ignored.
*
* returns 0 on success, ULPI_ERROR on failure.
*/
u32 ulpi_write(u32 ulpi_viewport, u8 *reg, u32 value);
/*
* Read the ULPI PHY register content via the viewport.
* @reg - the ULPI register (one of the fields in struct ulpi_regs).
*
* returns register content on success, ULPI_ERROR on failure.
*/
u32 ulpi_read(u32 ulpi_viewport, u8 *reg);
/*
* Wait for the reset to complete.
* The Link must not attempt to access the PHY until the reset has
* completed and DIR line is de-asserted.
*/
int ulpi_reset_wait(u32 ulpi_viewport);
/* Access Extended Register Set (indicator) */
#define ACCESS_EXT_REGS_OFFSET 0x2f /* read-write */
/* Vendor-specific */
#define VENDOR_SPEC_OFFSET 0x30
/*
* Extended Register Set
*
* Addresses 0x00-0x3F map directly to Immediate Register Set.
* Addresses 0x40-0x7F are reserved.
* Addresses 0x80-0xff are vendor-specific.
*/
#define EXT_VENDOR_SPEC_OFFSET 0x80
/* ULPI registers, bits and offsets definitions */
struct ulpi_regs {
/* Vendor ID and Product ID: 0x00 - 0x03 Read-only */
u8 vendor_id_low;
u8 vendor_id_high;
u8 product_id_low;
u8 product_id_high;
/* Function Control: 0x04 - 0x06 Read */
u8 function_ctrl; /* 0x04 Write */
u8 function_ctrl_set; /* 0x05 Set */
u8 function_ctrl_clear; /* 0x06 Clear */
/* Interface Control: 0x07 - 0x09 Read */
u8 iface_ctrl; /* 0x07 Write */
u8 iface_ctrl_set; /* 0x08 Set */
u8 iface_ctrl_clear; /* 0x09 Clear */
/* OTG Control: 0x0A - 0x0C Read */
u8 otg_ctrl; /* 0x0A Write */
u8 otg_ctrl_set; /* 0x0B Set */
u8 otg_ctrl_clear; /* 0x0C Clear */
/* USB Interrupt Enable Rising: 0x0D - 0x0F Read */
u8 usb_ie_rising; /* 0x0D Write */
u8 usb_ie_rising_set; /* 0x0E Set */
u8 usb_ie_rising_clear; /* 0x0F Clear */
/* USB Interrupt Enable Falling: 0x10 - 0x12 Read */
u8 usb_ie_falling; /* 0x10 Write */
u8 usb_ie_falling_set; /* 0x11 Set */
u8 usb_ie_falling_clear; /* 0x12 Clear */
/* USB Interrupt Status: 0x13 Read-only */
u8 usb_int_status;
/* USB Interrupt Latch: 0x14 Read-only with auto-clear */
u8 usb_int_latch;
/* Debug: 0x15 Read-only */
u8 debug;
/* Scratch Register: 0x16 - 0x18 Read */
u8 scratch; /* 0x16 Write */
u8 scratch_set; /* 0x17 Set */
u8 scratch_clear; /* 0x18 Clear */
/*
* Optional Carkit registers:
* Carkit Control: 0x19 - 0x1B Read
*/
u8 carkit_ctrl; /* 0x19 Write */
u8 carkit_ctrl_set; /* 0x1A Set */
u8 carkit_ctrl_clear; /* 0x1B Clear */
/* Carkit Interrupt Delay: 0x1C Read, Write */
u8 carkit_int_delay;
/* Carkit Interrupt Enable: 0x1D - 0x1F Read */
u8 carkit_ie; /* 0x1D Write */
u8 carkit_ie_set; /* 0x1E Set */
u8 carkit_ie_clear; /* 0x1F Clear */
/* Carkit Interrupt Status: 0x20 Read-only */
u8 carkit_int_status;
/* Carkit Interrupt Latch: 0x21 Read-only with auto-clear */
u8 carkit_int_latch;
/* Carkit Pulse Control: 0x22 - 0x24 Read */
u8 carkit_pulse_ctrl; /* 0x22 Write */
u8 carkit_pulse_ctrl_set; /* 0x23 Set */
u8 carkit_pulse_ctrl_clear; /* 0x24 Clear */
/*
* Other optional registers:
* Transmit Positive Width: 0x25 Read, Write
*/
u8 transmit_pos_width;
/* Transmit Negative Width: 0x26 Read, Write */
u8 transmit_neg_width;
/* Receive Polarity Recovery: 0x27 Read, Write */
u8 recv_pol_recovery;
/*
* Addresses 0x28 - 0x2E are reserved, so we use offsets
* for immediate registers with higher addresses
*/
};
/*
* Register Bits
*/
/* Function Control */
#define ULPI_FC_XCVRSEL_MASK (3 << 0)
#define ULPI_FC_HIGH_SPEED (0 << 0)
#define ULPI_FC_FULL_SPEED (1 << 0)
#define ULPI_FC_LOW_SPEED (2 << 0)
#define ULPI_FC_FS4LS (3 << 0)
#define ULPI_FC_TERMSELECT (1 << 2)
#define ULPI_FC_OPMODE_MASK (3 << 3)
#define ULPI_FC_OPMODE_NORMAL (0 << 3)
#define ULPI_FC_OPMODE_NONDRIVING (1 << 3)
#define ULPI_FC_OPMODE_DISABLE_NRZI (2 << 3)
#define ULPI_FC_OPMODE_NOSYNC_NOEOP (3 << 3)
#define ULPI_FC_RESET (1 << 5)
#define ULPI_FC_SUSPENDM (1 << 6)
/* Interface Control */
#define ULPI_IFACE_6_PIN_SERIAL_MODE (1 << 0)
#define ULPI_IFACE_3_PIN_SERIAL_MODE (1 << 1)
#define ULPI_IFACE_CARKITMODE (1 << 2)
#define ULPI_IFACE_CLOCKSUSPENDM (1 << 3)
#define ULPI_IFACE_AUTORESUME (1 << 4)
#define ULPI_IFACE_EXTVBUS_COMPLEMENT (1 << 5)
#define ULPI_IFACE_PASSTHRU (1 << 6)
#define ULPI_IFACE_PROTECT_IFC_DISABLE (1 << 7)
/* OTG Control */
#define ULPI_OTG_ID_PULLUP (1 << 0)
#define ULPI_OTG_DP_PULLDOWN (1 << 1)
#define ULPI_OTG_DM_PULLDOWN (1 << 2)
#define ULPI_OTG_DISCHRGVBUS (1 << 3)
#define ULPI_OTG_CHRGVBUS (1 << 4)
#define ULPI_OTG_DRVVBUS (1 << 5)
#define ULPI_OTG_DRVVBUS_EXT (1 << 6)
#define ULPI_OTG_EXTVBUSIND (1 << 7)
/*
* USB Interrupt Enable Rising,
* USB Interrupt Enable Falling,
* USB Interrupt Status and
* USB Interrupt Latch
*/
#define ULPI_INT_HOST_DISCONNECT (1 << 0)
#define ULPI_INT_VBUS_VALID (1 << 1)
#define ULPI_INT_SESS_VALID (1 << 2)
#define ULPI_INT_SESS_END (1 << 3)
#define ULPI_INT_IDGRD (1 << 4)
/* Debug */
#define ULPI_DEBUG_LINESTATE0 (1 << 0)
#define ULPI_DEBUG_LINESTATE1 (1 << 1)
/* Carkit Control */
#define ULPI_CARKIT_CTRL_CARKITPWR (1 << 0)
#define ULPI_CARKIT_CTRL_IDGNDDRV (1 << 1)
#define ULPI_CARKIT_CTRL_TXDEN (1 << 2)
#define ULPI_CARKIT_CTRL_RXDEN (1 << 3)
#define ULPI_CARKIT_CTRL_SPKLEFTEN (1 << 4)
#define ULPI_CARKIT_CTRL_SPKRIGHTEN (1 << 5)
#define ULPI_CARKIT_CTRL_MICEN (1 << 6)
/* Carkit Interrupt Enable */
#define ULPI_CARKIT_INT_EN_IDFLOAT_RISE (1 << 0)
#define ULPI_CARKIT_INT_EN_IDFLOAT_FALL (1 << 1)
#define ULPI_CARKIT_INT_EN_CARINTDET (1 << 2)
#define ULPI_CARKIT_INT_EN_DP_RISE (1 << 3)
#define ULPI_CARKIT_INT_EN_DP_FALL (1 << 4)
/* Carkit Interrupt Status and Latch */
#define ULPI_CARKIT_INT_IDFLOAT (1 << 0)
#define ULPI_CARKIT_INT_CARINTDET (1 << 1)
#define ULPI_CARKIT_INT_DP (1 << 2)
/* Carkit Pulse Control*/
#define ULPI_CARKIT_PLS_CTRL_TXPLSEN (1 << 0)
#define ULPI_CARKIT_PLS_CTRL_RXPLSEN (1 << 1)
#define ULPI_CARKIT_PLS_CTRL_SPKRLEFT_BIASEN (1 << 2)
#define ULPI_CARKIT_PLS_CTRL_SPKRRIGHT_BIASEN (1 << 3)
#endif /* __USB_ULPI_H__ */