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 | |
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 | |
27 | void ioport_unmap(void __iomem *addr) |
28 | { |
29 | } |
30 | EXPORT_SYMBOL(ioport_unmap); |
31 |