/* * Copyright (C) 2014 Altera Corporation * Copyright (C) 2010 Tobias Klauser <tklauser@distanz.ch> * Copyright (C) 2004 Microtronix Datacom Ltd. * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. */ #ifndef _ASM_NIOS2_IO_H #define _ASM_NIOS2_IO_H #include <linux/types.h> #include <asm/pgtable-bits.h> /* PCI is not supported in nios2, set this to 0. */ #define IO_SPACE_LIMIT 0 #define readb_relaxed(addr) readb(addr) #define readw_relaxed(addr) readw(addr) #define readl_relaxed(addr) readl(addr) #define writeb_relaxed(x, addr) writeb(x, addr) #define writew_relaxed(x, addr) writew(x, addr) #define writel_relaxed(x, addr) writel(x, addr) void __iomem *ioremap(unsigned long physaddr, unsigned long size); void iounmap(void __iomem *addr); /* Macros used for converting between virtual and physical mappings. */ #define phys_to_virt(vaddr) \ ((void *)((unsigned long)(vaddr) | CONFIG_NIOS2_KERNEL_REGION_BASE)) /* Clear top 3 bits */ #define virt_to_phys(vaddr) \ ((unsigned long)((unsigned long)(vaddr) & ~0xE0000000)) #include <asm-generic/io.h> #endif /* _ASM_NIOS2_IO_H */