1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * arch/sh/kernel/ioport.c
4  *
5  * Copyright (C) 2000  Niibe Yutaka
6  * Copyright (C) 2005 - 2007 Paul Mundt
7  */
8 #include <linux/module.h>
9 #include <linux/io.h>
10 #include <asm/io_trapped.h>
11 
12 unsigned long sh_io_port_base __read_mostly = -1;
13 EXPORT_SYMBOL(sh_io_port_base);
14 
__ioport_map(unsigned long addr,unsigned int size)15 void __iomem *__ioport_map(unsigned long addr, unsigned int size)
16 {
17 	if (sh_mv.mv_ioport_map)
18 		return sh_mv.mv_ioport_map(addr, size);
19 
20 	return (void __iomem *)(addr + sh_io_port_base);
21 }
22 EXPORT_SYMBOL(__ioport_map);
23 
ioport_map(unsigned long port,unsigned int nr)24 void __iomem *ioport_map(unsigned long port, unsigned int nr)
25 {
26 	void __iomem *ret;
27 
28 	ret = __ioport_map_trapped(port, nr);
29 	if (ret)
30 		return ret;
31 
32 	return __ioport_map(port, nr);
33 }
34 EXPORT_SYMBOL(ioport_map);
35 
ioport_unmap(void __iomem * addr)36 void ioport_unmap(void __iomem *addr)
37 {
38 	if (sh_mv.mv_ioport_unmap)
39 		sh_mv.mv_ioport_unmap(addr);
40 }
41 EXPORT_SYMBOL(ioport_unmap);
42