projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 96cf5185 G |
1 | /* |
| 2 | * linux/arch/unicore32/include/asm/io.h | |
| 3 | * | |
| 4 | * Code specific to PKUnity SoC and UniCore ISA | |
| 5 | * | |
| 6 | * Copyright (C) 2001-2010 GUAN Xue-tao | |
| 7 | * | |
| 8 | * This program is free software; you can redistribute it and/or modify | |
| 9 | * it under the terms of the GNU General Public License version 2 as | |
| 10 | * published by the Free Software Foundation. | |
| 11 | */ | |
| 12 | #ifndef __UNICORE_IO_H__ | |
| 13 | #define __UNICORE_IO_H__ | |
| 14 | ||
| 15 | #ifdef __KERNEL__ | |
| 16 | ||
| 17 | #include <asm/byteorder.h> | |
| 18 | #include <asm/memory.h> | |
| 19 | #include <asm/system.h> | |
| 20 | ||
| 1cf46c42 | 21 | #define PCI_IOBASE PKUNITY_PCILIO_BASE |
| 96cf5185 G |
22 | #include <asm-generic/io.h> |
| 23 | ||
| 24 | /* | |
| 25 | * __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address. | |
| 26 | */ | |
| 27 | extern void __iomem *__uc32_ioremap(unsigned long, size_t); | |
| 28 | extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t); | |
| 29 | extern void __uc32_iounmap(volatile void __iomem *addr); | |
| 30 | ||
| 31 | /* | |
| 32 | * ioremap and friends. | |
| 33 | * | |
| 34 | * ioremap takes a PCI memory address, as specified in | |
| 395cf969 | 35 | * Documentation/io-mapping.txt. |
| 96cf5185 G |
36 | * |
| 37 | */ | |
| 38 | #define ioremap(cookie, size) __uc32_ioremap(cookie, size) | |
| 39 | #define ioremap_cached(cookie, size) __uc32_ioremap_cached(cookie, size) | |
| 40 | #define iounmap(cookie) __uc32_iounmap(cookie) | |
| 41 | ||
| 96cf5185 G |
42 | /* |
| 43 | * Convert a physical pointer to a virtual kernel pointer for /dev/mem | |
| 44 | * access | |
| 45 | */ | |
| 46 | #undef xlate_dev_mem_ptr | |
| 47 | #define xlate_dev_mem_ptr(p) __va(p) | |
| 48 | ||
| 4fde87cb G |
49 | #define HAVE_ARCH_PIO_SIZE |
| 50 | #define PIO_OFFSET (unsigned int)(PCI_IOBASE) | |
| 51 | #define PIO_MASK (unsigned int)(IO_SPACE_LIMIT) | |
| 52 | #define PIO_RESERVED (PIO_OFFSET + PIO_MASK + 1) | |
| 53 | ||
| 96cf5185 G |
54 | #endif /* __KERNEL__ */ |
| 55 | #endif /* __UNICORE_IO_H__ */ |