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