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/*
* TI's Davinci platform specific USB wrapper functions.
*
* Copyright (c) 2008 Texas Instruments
*
* 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
*
* Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
*/
#ifndef __DAVINCI_USB_H__
#define __DAVINCI_USB_H__
#include <asm/arch/hardware.h>
#include "musb_core.h"
/* Base address of DAVINCI usb0 wrapper */
#define DAVINCI_USB0_BASE 0x01C64000
/* Base address of DAVINCI musb core */
#define MENTOR_USB0_BASE (DAVINCI_USB0_BASE+0x400)
/*
* Davinci platform USB wrapper register overlay. Note: Only the required
* registers are included in this structure. It can be expanded as required.
*/
struct davinci_usb_regs {
u32 version;
u32 ctrlr;
u32 reserved[0x20];
u32 intclrr;
u32 intmskr;
u32 intmsksetr;
};
#define DAVINCI_USB_TX_ENDPTS_MASK 0x1f /* ep0 + 4 tx */
#define DAVINCI_USB_RX_ENDPTS_MASK 0x1e /* 4 rx */
#define DAVINCI_USB_USBINT_SHIFT 16
#define DAVINCI_USB_TXINT_SHIFT 0
#define DAVINCI_USB_RXINT_SHIFT 8
#define DAVINCI_INTR_DRVVBUS 0x0100
#define DAVINCI_USB_USBINT_MASK 0x01ff0000 /* 8 Mentor, DRVVBUS */
#define DAVINCI_USB_TXINT_MASK \
(DAVINCI_USB_TX_ENDPTS_MASK << DAVINCI_USB_TXINT_SHIFT)
#define DAVINCI_USB_RXINT_MASK \
(DAVINCI_USB_RX_ENDPTS_MASK << DAVINCI_USB_RXINT_SHIFT)
#define MGC_BUSCTL_OFFSET(_bEnd, _bOffset) \
(0x80 + (8*(_bEnd)) + (_bOffset))
/* Integrated highspeed/otg PHY */
#define USBPHY_CTL_PADDR (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
#define USBPHY_PHYCLKGD (1 << 8)
#define USBPHY_SESNDEN (1 << 7) /* v(sess_end) comparator */
#define USBPHY_VBDTCTEN (1 << 6) /* v(bus) comparator */
#define USBPHY_PHYPLLON (1 << 4) /* override pll suspend */
#define USBPHY_CLKO1SEL (1 << 3)
#define USBPHY_OSCPDWN (1 << 2)
#define USBPHY_PHYPDWN (1 << 0)
/* Timeout for Davinci USB module */
#define DAVINCI_USB_TIMEOUT 0x3FFFFFF
/* IO Expander I2C address and VBUS enable mask */
#define IOEXP_I2C_ADDR 0x3A
#define IOEXP_VBUSEN_MASK 1
/* extern functions */
extern void lpsc_on(unsigned int id);
extern int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
extern int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
extern void enable_vbus(void);
#endif /* __DAVINCI_USB_H__ */
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