drivers/usb/musb/davinci.h

   1 /*
   2  * TI's Davinci platform specific USB wrapper functions.
   3  *
   4  * Copyright (c) 2008 Texas Instruments
   5  *
   6  * SPDX-License-Identifier:     GPL-2.0+
   7  *
   8  * Author: Thomas Abraham t-abraham@ti.com, Texas Instruments
   9  */
  10
  11 #ifndef __DAVINCI_USB_H__
  12 #define __DAVINCI_USB_H__
  13
  14 #include <asm/arch/hardware.h>
  15 #include "musb_core.h"
  16
  17 /* Base address of DAVINCI usb0 wrapper */
  18 #define DAVINCI_USB0_BASE 0x01C64000
  19
  20 /* Base address of DAVINCI musb core */
  21 #define MENTOR_USB0_BASE (DAVINCI_USB0_BASE+0x400)
  22
  23 /*
  24  * Davinci platform USB wrapper register overlay. Note: Only the required
  25  * registers are included in this structure. It can be expanded as required.
  26  */
  27 struct davinci_usb_regs {
  28         u32     version;
  29         u32     ctrlr;
  30         u32     reserved[0x20];
  31         u32     intclrr;
  32         u32     intmskr;
  33         u32     intmsksetr;
  34 };
  35
  36 #define DAVINCI_USB_TX_ENDPTS_MASK      0x1f /* ep0 + 4 tx */
  37 #define DAVINCI_USB_RX_ENDPTS_MASK      0x1e /* 4 rx */
  38 #define DAVINCI_USB_USBINT_SHIFT        16
  39 #define DAVINCI_USB_TXINT_SHIFT         0
  40 #define DAVINCI_USB_RXINT_SHIFT         8
  41 #define DAVINCI_INTR_DRVVBUS            0x0100
  42
  43 #define DAVINCI_USB_USBINT_MASK         0x01ff0000      /* 8 Mentor, DRVVBUS */
  44 #define DAVINCI_USB_TXINT_MASK \
  45                 (DAVINCI_USB_TX_ENDPTS_MASK << DAVINCI_USB_TXINT_SHIFT)
  46 #define DAVINCI_USB_RXINT_MASK \
  47                 (DAVINCI_USB_RX_ENDPTS_MASK << DAVINCI_USB_RXINT_SHIFT)
  48 #define MGC_BUSCTL_OFFSET(_bEnd, _bOffset) \
  49                 (0x80 + (8*(_bEnd)) + (_bOffset))
  50
  51 /* Integrated highspeed/otg PHY */
  52 #define USBPHY_CTL_PADDR        (DAVINCI_SYSTEM_MODULE_BASE + 0x34)
  53 #define USBPHY_PHY24MHZ         (1 << 13)
  54 #define USBPHY_PHYCLKGD         (1 << 8)
  55 #define USBPHY_SESNDEN          (1 << 7)        /* v(sess_end) comparator */
  56 #define USBPHY_VBDTCTEN         (1 << 6)        /* v(bus) comparator */
  57 #define USBPHY_PHYPLLON         (1 << 4)        /* override pll suspend */
  58 #define USBPHY_CLKO1SEL         (1 << 3)
  59 #define USBPHY_OSCPDWN          (1 << 2)
  60 #define USBPHY_PHYPDWN          (1 << 0)
  61
  62 /* Timeout for Davinci USB module */
  63 #define DAVINCI_USB_TIMEOUT 0x3FFFFFF
  64
  65 /* IO Expander I2C address and VBUS enable mask */
  66 #define IOEXP_I2C_ADDR 0x3A
  67 #define IOEXP_VBUSEN_MASK 1
  68
  69 /* extern functions */
  70 extern void lpsc_on(unsigned int id);
  71 extern int i2c_write(uchar chip, uint addr, int alen, uchar *buffer, int len);
  72 extern int i2c_read(uchar chip, uint addr, int alen, uchar *buffer, int len);
  73 extern void enable_vbus(void);
  74 #endif  /* __DAVINCI_USB_H__ */