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 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 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 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