LXR uboot/drivers/usb/musb-new/musb

   1/*
   2 * MUSB OTG driver register I/O
   3 *
   4 * Copyright 2005 Mentor Graphics Corporation
   5 * Copyright (C) 2005-2006 by Texas Instruments
   6 * Copyright (C) 2006-2007 Nokia Corporation
   7 *
   8 * This program is free software; you can redistribute it and/or
   9 * modify it under the terms of the GNU General Public License
  10 * version 2 as published by the Free Software Foundation.
  11 *
  12 * SPDX-License-Identifier:     GPL-2.0
  13 */
  14
  15#ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
  16#define __MUSB_LINUX_PLATFORM_ARCH_H__
  17
  18#ifndef __UBOOT__
  19#include <linux/io.h>
  20#else
  21#include <asm/io.h>
  22#endif
  23
  24#if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \
  25        && !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \
  26        && !defined(CONFIG_PPC64) && !defined(CONFIG_BLACKFIN) \
  27        && !defined(CONFIG_MIPS) && !defined(CONFIG_M68K)
  28static inline void readsl(const void __iomem *addr, void *buf, int len)
  29        { insl((unsigned long)addr, buf, len); }
  30static inline void readsw(const void __iomem *addr, void *buf, int len)
  31        { insw((unsigned long)addr, buf, len); }
  32static inline void readsb(const void __iomem *addr, void *buf, int len)
  33        { insb((unsigned long)addr, buf, len); }
  34
  35static inline void writesl(const void __iomem *addr, const void *buf, int len)
  36        { outsl((unsigned long)addr, buf, len); }
  37static inline void writesw(const void __iomem *addr, const void *buf, int len)
  38        { outsw((unsigned long)addr, buf, len); }
  39static inline void writesb(const void __iomem *addr, const void *buf, int len)
  40        { outsb((unsigned long)addr, buf, len); }
  41
  42#endif
  43
  44#ifndef CONFIG_BLACKFIN
  45
  46/* NOTE:  these offsets are all in bytes */
  47
  48static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
  49        { return __raw_readw(addr + offset); }
  50
  51static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
  52        { return __raw_readl(addr + offset); }
  53
  54
  55static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
  56        { __raw_writew(data, addr + offset); }
  57
  58static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
  59        { __raw_writel(data, addr + offset); }
  60
  61
  62#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
  63
  64/*
  65 * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
  66 */
  67static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
  68{
  69        u16 tmp;
  70        u8 val;
  71
  72        tmp = __raw_readw(addr + (offset & ~1));
  73        if (offset & 1)
  74                val = (tmp >> 8);
  75        else
  76                val = tmp & 0xff;
  77
  78        return val;
  79}
  80
  81static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
  82{
  83        u16 tmp;
  84
  85        tmp = __raw_readw(addr + (offset & ~1));
  86        if (offset & 1)
  87                tmp = (data << 8) | (tmp & 0xff);
  88        else
  89                tmp = (tmp & 0xff00) | data;
  90
  91        __raw_writew(tmp, addr + (offset & ~1));
  92}
  93
  94#else
  95
  96static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
  97        { return __raw_readb(addr + offset); }
  98
  99static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
 100        { __raw_writeb(data, addr + offset); }
 101
 102#endif  /* CONFIG_USB_MUSB_TUSB6010 */
 103
 104#else
 105
 106static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
 107        { return (u8) (bfin_read16(addr + offset)); }
 108
 109static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
 110        { return bfin_read16(addr + offset); }
 111
 112static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
 113        { return (u32) (bfin_read16(addr + offset)); }
 114
 115static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
 116        { bfin_write16(addr + offset, (u16) data); }
 117
 118static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
 119        { bfin_write16(addr + offset, data); }
 120
 121static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
 122        { bfin_write16(addr + offset, (u16) data); }
 123
 124#endif /* CONFIG_BLACKFIN */
 125
 126#endif
 127