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/*
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* TI's Davinci platform specific USB wrapper functions.
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*
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* Copyright (c) 2008 Texas Instruments
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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 as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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* Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
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*/
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#ifndef __DAVINCI_USB_H__
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#define __DAVINCI_USB_H__
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#include <asm/arch/hardware.h>
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#include "musb_core.h"
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/* Base address of DAVINCI usb0 wrapper */
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#define DAVINCI_USB0_BASE 0x01C64000
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/* Base address of DAVINCI musb core */
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#define MENTOR_USB0_BASE (DAVINCI_USB0_BASE+0x400)
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/*
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* Davinci platform USB wrapper register overlay. Note: Only the required
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* registers are included in this structure. It can be expanded as required.
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*/
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struct davinci_usb_regs {
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u32 version;
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u32 ctrlr;
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u32 reserved[0x20];
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u32 intclrr;
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u32 intmskr;
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u32 intmsksetr;
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};
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#define DAVINCI_USB_TX_ENDPTS_MASK 0x1f /* ep0 + 4 tx */
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#define DAVINCI_USB_RX_ENDPTS_MASK 0x1e /* 4 rx */
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#define DAVINCI_USB_USBINT_SHIFT 16
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#define DAVINCI_USB_TXINT_SHIFT 0
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#define DAVINCI_USB_RXINT_SHIFT 8
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#define DAVINCI_INTR_DRVVBUS 0x0100
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#define DAVINCI_USB_USBINT_MASK 0x01ff0000 /* 8 Mentor, DRVVBUS */
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#define DAVINCI_USB_TXINT_MASK \
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(DAVINCI_USB_TX_ENDPTS_MASK << DAVINCI_USB_TXINT_SHIFT)
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#define DAVINCI_USB_RXINT_MASK \
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(DAVINCI_USB_RX_ENDPTS_MASK << DAVINCI_USB_RXINT_SHIFT)
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#define MGC_BUSCTL_OFFSET(_bEnd, _bOffset) \
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(0x80 + (8*(_bEnd)) + (_bOffset))
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/* Integrated highspeed/otg PHY */
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#define USBPHY_CTL_PADDR (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
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#define USBPHY_PHY24MHZ (1 << 13)
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#define USBPHY_PHYCLKGD (1 << 8)
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#define USBPHY_SESNDEN (1 << 7) /* v(sess_end) comparator */
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#define USBPHY_VBDTCTEN (1 << 6) /* v(bus) comparator */
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#define USBPHY_PHYPLLON (1 << 4) /* override pll suspend */
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#define USBPHY_CLKO1SEL (1 << 3)
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#define USBPHY_OSCPDWN (1 << 2)
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#define USBPHY_PHYPDWN (1 << 0)
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/* Timeout for Davinci USB module */
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#define DAVINCI_USB_TIMEOUT 0x3FFFFFF
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/* IO Expander I2C address and VBUS enable mask */
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#define IOEXP_I2C_ADDR 0x3A
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#define IOEXP_VBUSEN_MASK 1
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/* extern functions */
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extern void lpsc_on(unsigned int id);
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extern int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
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extern int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
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extern void enable_vbus(void);
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#endif /* __DAVINCI_USB_H__ */
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