| /* |
| * linux/arch/unicore32/include/asm/io.h |
| * |
| * Code specific to PKUnity SoC and UniCore ISA |
| * |
| * Copyright (C) 2001-2010 GUAN Xue-tao |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| #ifndef __UNICORE_IO_H__ |
| #define __UNICORE_IO_H__ |
| |
| #ifdef __KERNEL__ |
| |
| #include <asm/byteorder.h> |
| #include <asm/memory.h> |
| #include <asm/system.h> |
| |
| #define PCI_IOBASE PKUNITY_PCILIO_BASE |
| #include <asm-generic/io.h> |
| |
| /* |
| * __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address. |
| */ |
| extern void __iomem *__uc32_ioremap(unsigned long, size_t); |
| extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t); |
| extern void __uc32_iounmap(volatile void __iomem *addr); |
| |
| /* |
| * ioremap and friends. |
| * |
| * ioremap takes a PCI memory address, as specified in |
| * Documentation/io-mapping.txt. |
| * |
| */ |
| #define ioremap(cookie, size) __uc32_ioremap(cookie, size) |
| #define ioremap_cached(cookie, size) __uc32_ioremap_cached(cookie, size) |
| #define iounmap(cookie) __uc32_iounmap(cookie) |
| |
| /* |
| * Convert a physical pointer to a virtual kernel pointer for /dev/mem |
| * access |
| */ |
| #undef xlate_dev_mem_ptr |
| #define xlate_dev_mem_ptr(p) __va(p) |
| |
| #define HAVE_ARCH_PIO_SIZE |
| #define PIO_OFFSET (unsigned int)(PCI_IOBASE) |
| #define PIO_MASK (unsigned int)(IO_SPACE_LIMIT) |
| #define PIO_RESERVED (PIO_OFFSET + PIO_MASK + 1) |
| |
| #endif /* __KERNEL__ */ |
| #endif /* __UNICORE_IO_H__ */ |
