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 port,unsigned int nr)15 void __iomem *ioport_map(unsigned long port, unsigned int nr)
16 {
17 	void __iomem *ret;
18 
19 	ret = __ioport_map_trapped(port, nr);
20 	if (ret)
21 		return ret;
22 
23 	return (void __iomem *)(port + sh_io_port_base);
24 }
25 EXPORT_SYMBOL(ioport_map);
26 
ioport_unmap(void __iomem * addr)27 void ioport_unmap(void __iomem *addr)
28 {
29 }
30 EXPORT_SYMBOL(ioport_unmap);
31