1 /* 2 * OpenRISC Linux 3 * 4 * Linux architectural port borrowing liberally from similar works of 5 * others. All original copyrights apply as per the original source 6 * declaration. 7 * 8 * OpenRISC implementation: 9 * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> 10 * et al. 11 * 12 * This program is free software; you can redistribute it and/or modify 13 * it under the terms of the GNU General Public License as published by 14 * the Free Software Foundation; either version 2 of the License, or 15 * (at your option) any later version. 16 */ 17 18 #ifndef __ASM_OPENRISC_IO_H 19 #define __ASM_OPENRISC_IO_H 20 21 /* 22 * PCI: can we really do 0 here if we have no port IO? 23 */ 24 #define IO_SPACE_LIMIT 0 25 26 /* OpenRISC has no port IO */ 27 #define HAVE_ARCH_PIO_SIZE 1 28 #define PIO_RESERVED 0X0UL 29 #define PIO_OFFSET 0 30 #define PIO_MASK 0 31 32 #define ioremap_nocache ioremap_nocache 33 #include <asm-generic/io.h> 34 #include <asm/pgtable.h> 35 36 extern void __iomem *__ioremap(phys_addr_t offset, unsigned long size, 37 pgprot_t prot); 38 39 static inline void __iomem *ioremap(phys_addr_t offset, size_t size) 40 { 41 return __ioremap(offset, size, PAGE_KERNEL); 42 } 43 44 /* #define _PAGE_CI 0x002 */ 45 static inline void __iomem *ioremap_nocache(phys_addr_t offset, 46 unsigned long size) 47 { 48 return __ioremap(offset, size, 49 __pgprot(pgprot_val(PAGE_KERNEL) | _PAGE_CI)); 50 } 51 52 extern void iounmap(void *addr); 53 #endif 54