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 * This program is distributed in the hope that it will be useful, but
  13 * WITHOUT ANY WARRANTY; without even the implied warranty of
  14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 * General Public License for more details.
  16 *
  17 * You should have received a copy of the GNU General Public License
  18 * along with this program; if not, write to the Free Software
  19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  20 * 02110-1301 USA
  21 *
  22 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
  23 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  24 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN
  25 * NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
  28 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
  29 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  32 *
  33 */
  34
  35#ifndef __MUSB_LINUX_PLATFORM_ARCH_H__
  36#define __MUSB_LINUX_PLATFORM_ARCH_H__
  37
  38#ifndef __UBOOT__
  39#include <linux/io.h>
  40#else
  41#include <asm/io.h>
  42#endif
  43
  44#if !defined(CONFIG_ARM) && !defined(CONFIG_SUPERH) \
  45        && !defined(CONFIG_AVR32) && !defined(CONFIG_PPC32) \
  46        && !defined(CONFIG_PPC64) && !defined(CONFIG_BLACKFIN) \
  47        && !defined(CONFIG_MIPS) && !defined(CONFIG_M68K)
  48static inline void readsl(const void __iomem *addr, void *buf, int len)
  49        { insl((unsigned long)addr, buf, len); }
  50static inline void readsw(const void __iomem *addr, void *buf, int len)
  51        { insw((unsigned long)addr, buf, len); }
  52static inline void readsb(const void __iomem *addr, void *buf, int len)
  53        { insb((unsigned long)addr, buf, len); }
  54
  55static inline void writesl(const void __iomem *addr, const void *buf, int len)
  56        { outsl((unsigned long)addr, buf, len); }
  57static inline void writesw(const void __iomem *addr, const void *buf, int len)
  58        { outsw((unsigned long)addr, buf, len); }
  59static inline void writesb(const void __iomem *addr, const void *buf, int len)
  60        { outsb((unsigned long)addr, buf, len); }
  61
  62#endif
  63
  64#ifndef CONFIG_BLACKFIN
  65
  66/* NOTE:  these offsets are all in bytes */
  67
  68static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
  69        { return __raw_readw(addr + offset); }
  70
  71static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
  72        { return __raw_readl(addr + offset); }
  73
  74
  75static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
  76        { __raw_writew(data, addr + offset); }
  77
  78static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
  79        { __raw_writel(data, addr + offset); }
  80
  81
  82#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
  83
  84/*
  85 * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
  86 */
  87static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
  88{
  89        u16 tmp;
  90        u8 val;
  91
  92        tmp = __raw_readw(addr + (offset & ~1));
  93        if (offset & 1)
  94                val = (tmp >> 8);
  95        else
  96                val = tmp & 0xff;
  97
  98        return val;
  99}
 100
 101static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
 102{
 103        u16 tmp;
 104
 105        tmp = __raw_readw(addr + (offset & ~1));
 106        if (offset & 1)
 107                tmp = (data << 8) | (tmp & 0xff);
 108        else
 109                tmp = (tmp & 0xff00) | data;
 110
 111        __raw_writew(tmp, addr + (offset & ~1));
 112}
 113
 114#else
 115
 116static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
 117        { return __raw_readb(addr + offset); }
 118
 119static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
 120        { __raw_writeb(data, addr + offset); }
 121
 122#endif  /* CONFIG_USB_MUSB_TUSB6010 */
 123
 124#else
 125
 126static inline u8 musb_readb(const void __iomem *addr, unsigned offset)
 127        { return (u8) (bfin_read16(addr + offset)); }
 128
 129static inline u16 musb_readw(const void __iomem *addr, unsigned offset)
 130        { return bfin_read16(addr + offset); }
 131
 132static inline u32 musb_readl(const void __iomem *addr, unsigned offset)
 133        { return (u32) (bfin_read16(addr + offset)); }
 134
 135static inline void musb_writeb(void __iomem *addr, unsigned offset, u8 data)
 136        { bfin_write16(addr + offset, (u16) data); }
 137
 138static inline void musb_writew(void __iomem *addr, unsigned offset, u16 data)
 139        { bfin_write16(addr + offset, data); }
 140
 141static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
 142        { bfin_write16(addr + offset, (u16) data); }
 143
 144#endif /* CONFIG_BLACKFIN */
 145
 146#endif
 147