LXR uboot/drivers/usb/musb/davinci.h

   1/*
   2 * TI's Davinci platform specific USB wrapper functions.
   3 *
   4 * Copyright (c) 2008 Texas Instruments
   5 *
   6 * This program is free software; you can redistribute it and/or
   7 * modify it under the terms of the GNU General Public License as
   8 * published by the Free Software Foundation; either version 2 of
   9 * the License, or (at your option) any later version.
  10 *
  11 * This program is distributed in the hope that it will be useful,
  12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14 * GNU General Public License for more details.
  15 *
  16 * You should have received a copy of the GNU General Public License
  17 * along with this program; if not, write to the Free Software
  18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  19 * MA 02111-1307 USA
  20 *
  21 * Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
  22 */
  23
  24#ifndef __DAVINCI_USB_H__
  25#define __DAVINCI_USB_H__
  26
  27#include <asm/arch/hardware.h>
  28#include "musb_core.h"
  29
  30/* Base address of DAVINCI usb0 wrapper */
  31#define DAVINCI_USB0_BASE 0x01C64000
  32
  33/* Base address of DAVINCI musb core */
  34#define MENTOR_USB0_BASE (DAVINCI_USB0_BASE+0x400)
  35
  36/*
  37 * Davinci platform USB wrapper register overlay. Note: Only the required
  38 * registers are included in this structure. It can be expanded as required.
  39 */
  40struct davinci_usb_regs {
  41        u32     version;
  42        u32     ctrlr;
  43        u32     reserved[0x20];
  44        u32     intclrr;
  45        u32     intmskr;
  46        u32     intmsksetr;
  47};
  48
  49#define DAVINCI_USB_TX_ENDPTS_MASK      0x1f /* ep0 + 4 tx */
  50#define DAVINCI_USB_RX_ENDPTS_MASK      0x1e /* 4 rx */
  51#define DAVINCI_USB_USBINT_SHIFT        16
  52#define DAVINCI_USB_TXINT_SHIFT         0
  53#define DAVINCI_USB_RXINT_SHIFT         8
  54#define DAVINCI_INTR_DRVVBUS            0x0100
  55
  56#define DAVINCI_USB_USBINT_MASK         0x01ff0000      /* 8 Mentor, DRVVBUS */
  57#define DAVINCI_USB_TXINT_MASK \
  58                (DAVINCI_USB_TX_ENDPTS_MASK << DAVINCI_USB_TXINT_SHIFT)
  59#define DAVINCI_USB_RXINT_MASK \
  60                (DAVINCI_USB_RX_ENDPTS_MASK << DAVINCI_USB_RXINT_SHIFT)
  61#define MGC_BUSCTL_OFFSET(_bEnd, _bOffset) \
  62                (0x80 + (8*(_bEnd)) + (_bOffset))
  63
  64/* Integrated highspeed/otg PHY */
  65#define USBPHY_CTL_PADDR        (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
  66#define USBPHY_PHY24MHZ         (1 << 13)
  67#define USBPHY_PHYCLKGD         (1 << 8)
  68#define USBPHY_SESNDEN          (1 << 7)        /* v(sess_end) comparator */
  69#define USBPHY_VBDTCTEN         (1 << 6)        /* v(bus) comparator */
  70#define USBPHY_PHYPLLON         (1 << 4)        /* override pll suspend */
  71#define USBPHY_CLKO1SEL         (1 << 3)
  72#define USBPHY_OSCPDWN          (1 << 2)
  73#define USBPHY_PHYPDWN          (1 << 0)
  74
  75/* Timeout for Davinci USB module */
  76#define DAVINCI_USB_TIMEOUT 0x3FFFFFF
  77
  78/* IO Expander I2C address and VBUS enable mask */
  79#define IOEXP_I2C_ADDR 0x3A
  80#define IOEXP_VBUSEN_MASK 1
  81
  82/* extern functions */
  83extern void lpsc_on(unsigned int id);
  84extern int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
  85extern int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
  86extern void enable_vbus(void);
  87#endif  /* __DAVINCI_USB_H__ */
  88