106 lines
2.2 KiB
C
106 lines
2.2 KiB
C
/*
|
|
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
|
|
*
|
|
* 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 _ASM_ARC_IO_H
|
|
#define _ASM_ARC_IO_H
|
|
|
|
#include <linux/types.h>
|
|
#include <asm/byteorder.h>
|
|
#include <asm/page.h>
|
|
|
|
#define PCI_IOBASE ((void __iomem *)0)
|
|
|
|
extern void __iomem *ioremap(unsigned long physaddr, unsigned long size);
|
|
extern void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
|
|
unsigned long flags);
|
|
extern void iounmap(const void __iomem *addr);
|
|
|
|
#define ioremap_nocache(phy, sz) ioremap(phy, sz)
|
|
#define ioremap_wc(phy, sz) ioremap(phy, sz)
|
|
|
|
/* Change struct page to physical address */
|
|
#define page_to_phys(page) (page_to_pfn(page) << PAGE_SHIFT)
|
|
|
|
#define __raw_readb __raw_readb
|
|
static inline u8 __raw_readb(const volatile void __iomem *addr)
|
|
{
|
|
u8 b;
|
|
|
|
__asm__ __volatile__(
|
|
" ldb%U1 %0, %1 \n"
|
|
: "=r" (b)
|
|
: "m" (*(volatile u8 __force *)addr)
|
|
: "memory");
|
|
|
|
return b;
|
|
}
|
|
|
|
#define __raw_readw __raw_readw
|
|
static inline u16 __raw_readw(const volatile void __iomem *addr)
|
|
{
|
|
u16 s;
|
|
|
|
__asm__ __volatile__(
|
|
" ldw%U1 %0, %1 \n"
|
|
: "=r" (s)
|
|
: "m" (*(volatile u16 __force *)addr)
|
|
: "memory");
|
|
|
|
return s;
|
|
}
|
|
|
|
#define __raw_readl __raw_readl
|
|
static inline u32 __raw_readl(const volatile void __iomem *addr)
|
|
{
|
|
u32 w;
|
|
|
|
__asm__ __volatile__(
|
|
" ld%U1 %0, %1 \n"
|
|
: "=r" (w)
|
|
: "m" (*(volatile u32 __force *)addr)
|
|
: "memory");
|
|
|
|
return w;
|
|
}
|
|
|
|
#define __raw_writeb __raw_writeb
|
|
static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__(
|
|
" stb%U1 %0, %1 \n"
|
|
:
|
|
: "r" (b), "m" (*(volatile u8 __force *)addr)
|
|
: "memory");
|
|
}
|
|
|
|
#define __raw_writew __raw_writew
|
|
static inline void __raw_writew(u16 s, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__(
|
|
" stw%U1 %0, %1 \n"
|
|
:
|
|
: "r" (s), "m" (*(volatile u16 __force *)addr)
|
|
: "memory");
|
|
|
|
}
|
|
|
|
#define __raw_writel __raw_writel
|
|
static inline void __raw_writel(u32 w, volatile void __iomem *addr)
|
|
{
|
|
__asm__ __volatile__(
|
|
" st%U1 %0, %1 \n"
|
|
:
|
|
: "r" (w), "m" (*(volatile u32 __force *)addr)
|
|
: "memory");
|
|
|
|
}
|
|
|
|
#include <asm-generic/io.h>
|
|
|
|
#endif /* _ASM_ARC_IO_H */
|