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 11 unsigned long sh_io_port_base __read_mostly = -1; 12 EXPORT_SYMBOL(sh_io_port_base); 13 14 void __iomem *__ioport_map(unsigned long addr, unsigned int size) 15 { 16 if (sh_mv.mv_ioport_map) 17 return sh_mv.mv_ioport_map(addr, size); 18 19 return (void __iomem *)(addr + sh_io_port_base); 20 } 21 EXPORT_SYMBOL(__ioport_map); 22 23 void __iomem *ioport_map(unsigned long port, unsigned int nr) 24 { 25 void __iomem *ret; 26 27 ret = __ioport_map_trapped(port, nr); 28 if (ret) 29 return ret; 30 31 return __ioport_map(port, nr); 32 } 33 EXPORT_SYMBOL(ioport_map); 34 35 void ioport_unmap(void __iomem *addr) 36 { 37 if (sh_mv.mv_ioport_unmap) 38 sh_mv.mv_ioport_unmap(addr); 39 } 40 EXPORT_SYMBOL(ioport_unmap); 41