mirror_ubuntu-kernels/arch/sh/kernel/ioport.c

31 lines
609 B
C

// SPDX-License-Identifier: GPL-2.0
/*
* arch/sh/kernel/ioport.c
*
* Copyright (C) 2000 Niibe Yutaka
* Copyright (C) 2005 - 2007 Paul Mundt
*/
#include <linux/module.h>
#include <linux/io.h>
#include <asm/io_trapped.h>
unsigned long sh_io_port_base __read_mostly = -1;
EXPORT_SYMBOL(sh_io_port_base);
void __iomem *ioport_map(unsigned long port, unsigned int nr)
{
void __iomem *ret;
ret = __ioport_map_trapped(port, nr);
if (ret)
return ret;
return (void __iomem *)(port + sh_io_port_base);
}
EXPORT_SYMBOL(ioport_map);
void ioport_unmap(void __iomem *addr)
{
}
EXPORT_SYMBOL(ioport_unmap);