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