LXR uboot/arch/microblaze/include/asm/io.h

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * include/asm-microblaze/io.h -- Misc I/O operations
   4 *
   5 *  Copyright (C) 2003     John Williams <jwilliams@itee.uq.edu.au>
   6 *  Copyright (C) 2001,02  NEC Corporation
   7 *  Copyright (C) 2001,02  Miles Bader <miles@gnu.org>
   8 *
   9 * This file is subject to the terms and conditions of the GNU General
  10 * Public License.  See the file COPYING in the main directory of this
  11 * archive for more details.
  12 *
  13 * Written by Miles Bader <miles@gnu.org>
  14 * Microblaze port by John Williams
  15 */
  16
  17#ifndef __MICROBLAZE_IO_H__
  18#define __MICROBLAZE_IO_H__
  19
  20#include <asm/types.h>
  21
  22#define IO_SPACE_LIMIT 0xFFFFFFFF
  23
  24#define readb(addr) \
  25        ({ unsigned char __v = (*(volatile unsigned char *)(addr)); __v; })
  26
  27#define readw(addr) \
  28        ({ unsigned short __v = (*(volatile unsigned short *)(addr)); __v; })
  29
  30#define readl(addr) \
  31        ({ unsigned int __v = (*(volatile unsigned int *)(addr)); __v; })
  32
  33#define writeb(b, addr) \
  34        (void)((*(volatile unsigned char *)(addr)) = (b))
  35
  36#define writew(b, addr) \
  37        (void)((*(volatile unsigned short *)(addr)) = (b))
  38
  39#define writel(b, addr) \
  40        (void)((*(volatile unsigned int *)(addr)) = (b))
  41
  42#define memset_io(a, b, c)        memset((void *)(a), (b), (c))
  43#define memcpy_fromio(a, b, c)    memcpy((a), (void *)(b), (c))
  44#define memcpy_toio(a, b, c)      memcpy((void *)(a), (b), (c))
  45
  46#define inb(addr)       readb(addr)
  47#define inw(addr)       readw(addr)
  48#define inl(addr)       readl(addr)
  49#define outb(x, addr)   ((void)writeb(x, addr))
  50#define outw(x, addr)   ((void)writew(x, addr))
  51#define outl(x, addr)   ((void)writel(x, addr))
  52
  53/* Some #definitions to keep strange Xilinx code happy */
  54#define in_8(addr)      readb(addr)
  55#define in_be16(addr)   readw(addr)
  56#define in_be32(addr)   readl(addr)
  57
  58#define out_8(addr, x)          outb(x, addr)
  59#define out_be16(addr, x)       outw(x, addr)
  60#define out_be32(addr, x)       outl(x, addr)
  61
  62#define inb_p(port)             inb((port))
  63#define outb_p(val, port)       outb((val), (port))
  64#define inw_p(port)             inw((port))
  65#define outw_p(val, port)       outw((val), (port))
  66#define inl_p(port)             inl((port))
  67#define outl_p(val, port)       outl((val), (port))
  68
  69/* Some defines to keep the MTD flash drivers happy */
  70
  71#define __raw_readb readb
  72#define __raw_readw readw
  73#define __raw_readl readl
  74#define __raw_writeb writeb
  75#define __raw_writew writew
  76#define __raw_writel writel
  77
  78static inline void io_insb(unsigned long port, void *dst, unsigned long count)
  79{
  80        unsigned char *p = dst;
  81
  82        while (count--)
  83                *p++ = inb(port);
  84}
  85
  86static inline void io_insw(unsigned long port, void *dst, unsigned long count)
  87{
  88        unsigned short *p = dst;
  89
  90        while (count--)
  91                *p++ = inw(port);
  92}
  93
  94static inline void io_insl(unsigned long port, void *dst, unsigned long count)
  95{
  96        unsigned long *p = dst;
  97
  98        while (count--)
  99                *p++ = inl(port);
 100}
 101
 102static inline void
 103io_outsb(unsigned long port, const void *src, unsigned long count)
 104{
 105        const unsigned char *p = src;
 106
 107        while (count--)
 108                outb(*p++, port);
 109}
 110
 111static inline void
 112io_outsw(unsigned long port, const void *src, unsigned long count)
 113{
 114        const unsigned short *p = src;
 115
 116        while (count--)
 117                outw(*p++, port);
 118}
 119
 120static inline void
 121io_outsl(unsigned long port, const void *src, unsigned long count)
 122{
 123        const unsigned long *p = src;
 124
 125        while (count--)
 126                outl(*p++, port);
 127}
 128
 129#define outsb(a, b, l) io_outsb(a, b, l)
 130#define outsw(a, b, l) io_outsw(a, b, l)
 131#define outsl(a, b, l) io_outsl(a, b, l)
 132
 133#define insb(a, b, l) io_insb(a, b, l)
 134#define insw(a, b, l) io_insw(a, b, l)
 135#define insl(a, b, l) io_insl(a, b, l)
 136
 137#define ioremap_nocache(physaddr, size)         (physaddr)
 138#define ioremap_writethrough(physaddr, size)    (physaddr)
 139#define ioremap_fullcache(physaddr, size)       (physaddr)
 140
 141static inline void sync(void)
 142{
 143}
 144
 145#include <asm-generic/io.h>
 146
 147#endif /* __MICROBLAZE_IO_H__ */
 148