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 78 static 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 86 static 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 94 static 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 } 101 102 static inline void 103 io_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 } 110 111 static inline void 112 io_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 } 119 120 static inline void 121 io_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) 140 141 static inline void sync(void) 142 { 143 } 144 145 #include <asm-generic/io.h> 146 147 #endif /* __MICROBLAZE_IO_H__ */ 148