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#define out_arch(type, endian, addr, x) \ 54 __raw_write##type(cpu_to_##endian(x), addr) 55#define in_arch(type, endian, addr) \ 56 endian##_to_cpu(__raw_read##type(addr)) 57 58#define out_le16(addr, x) out_arch(w, le16, addr, x) 59#define out_le32(addr, x) out_arch(l, le32, addr, x) 60 61#define in_le16(addr) in_arch(w, le16, addr) 62#define in_le32(addr) in_arch(l, le32, addr) 63 64#define in_8(addr) readb(addr) 65#define in_be16(addr) in_arch(w, be16, addr) 66#define in_be32(addr) in_arch(l, be32, addr) 67 68#define out_8(addr, x) outb(x, addr) 69#define out_be16(addr, x) out_arch(w, be16, addr, x) 70#define out_be32(addr, x) out_arch(l, be32, addr, x) 71 72#define inb_p(port) inb((port)) 73#define outb_p(val, port) outb((val), (port)) 74#define inw_p(port) inw((port)) 75#define outw_p(val, port) outw((val), (port)) 76#define inl_p(port) inl((port)) 77#define outl_p(val, port) outl((val), (port)) 78 79/* Some defines to keep the MTD flash drivers happy */ 80 81#define __raw_readb readb 82#define __raw_readw readw 83#define __raw_readl readl 84#define __raw_writeb writeb 85#define __raw_writew writew 86#define __raw_writel writel 87 88static inline void io_insb(unsigned long port, void *dst, unsigned long count) 89{ 90 unsigned char *p = dst; 91 92 while (count--) 93 *p++ = inb(port); 94} 95 96static inline void io_insw(unsigned long port, void *dst, unsigned long count) 97{ 98 unsigned short *p = dst; 99 100 while (count--) 101 *p++ = inw(port); 102} 103 104static inline void io_insl(unsigned long port, void *dst, unsigned long count) 105{ 106 unsigned long *p = dst; 107 108 while (count--) 109 *p++ = inl(port); 110} 111 112static inline void 113io_outsb(unsigned long port, const void *src, unsigned long count) 114{ 115 const unsigned char *p = src; 116 117 while (count--) 118 outb(*p++, port); 119} 120 121static inline void 122io_outsw(unsigned long port, const void *src, unsigned long count) 123{ 124 const unsigned short *p = src; 125 126 while (count--) 127 outw(*p++, port); 128} 129 130static inline void 131io_outsl(unsigned long port, const void *src, unsigned long count) 132{ 133 const unsigned long *p = src; 134 135 while (count--) 136 outl(*p++, port); 137} 138 139#define outsb(a, b, l) io_outsb(a, b, l) 140#define outsw(a, b, l) io_outsw(a, b, l) 141#define outsl(a, b, l) io_outsl(a, b, l) 142 143#define insb(a, b, l) io_insb(a, b, l) 144#define insw(a, b, l) io_insw(a, b, l) 145#define insl(a, b, l) io_insl(a, b, l) 146 147#define ioremap_nocache(physaddr, size) (physaddr) 148#define ioremap_writethrough(physaddr, size) (physaddr) 149#define ioremap_fullcache(physaddr, size) (physaddr) 150 151static inline void sync(void) 152{ 153} 154 155#include <asm-generic/io.h> 156 157#endif /* __MICROBLAZE_IO_H__ */ 158