tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
20#define PCI_IOBASE PKUNITY_PCILIO_BASE
21#include <asm-generic/io.h>
22
23/*
24 * __uc32_ioremap and __uc32_ioremap_cached takes CPU physical address.
25 */
26extern void __iomem *__uc32_ioremap(unsigned long, size_t);
27extern void __iomem *__uc32_ioremap_cached(unsigned long, size_t);
28extern void __uc32_iounmap(volatile void __iomem *addr);
29
30/*
31 * ioremap and friends.
32 *
33 * ioremap takes a PCI memory address, as specified in
34 * Documentation/io-mapping.txt.
35 *
36 */
37#define ioremap(cookie, size) __uc32_ioremap(cookie, size)
38#define ioremap_cached(cookie, size) __uc32_ioremap_cached(cookie, size)
39#define ioremap_nocache(cookie, size) __uc32_ioremap(cookie, size)
40#define iounmap(cookie) __uc32_iounmap(cookie)
41
42#define HAVE_ARCH_PIO_SIZE
43#define PIO_OFFSET (unsigned int)(PCI_IOBASE)
44#define PIO_MASK (unsigned int)(IO_SPACE_LIMIT)
45#define PIO_RESERVED (PIO_OFFSET + PIO_MASK + 1)
46
47#endif /* __KERNEL__ */
48#endif /* __UNICORE_IO_H__ */