blob: 7bd7314d38c209e12fc36bf9bfb4abafc8b1086a [file] [log] [blame]
#ifndef __ASM_SH64_IO_H
#define __ASM_SH64_IO_H
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
* include/asm-sh64/io.h
* Copyright (C) 2000, 2001 Paolo Alberelli
* Copyright (C) 2003 Paul Mundt
* Convention:
* read{b,w,l}/write{b,w,l} are for PCI,
* while in{b,w,l}/out{b,w,l} are for ISA
* These may (will) be platform specific function.
* In addition, we have
* ctrl_in{b,w,l}/ctrl_out{b,w,l} for SuperH specific I/O.
* which are processor specific. Address should be the result of
* onchip_remap();
#include <linux/compiler.h>
#include <asm/cache.h>
#include <asm/system.h>
#include <asm/page.h>
#include <asm-generic/iomap.h>
* Nothing overly special here.. instead of doing the same thing
* over and over again, we just define a set of sh64_in/out functions
* with an implicit size. The traditional read{b,w,l}/write{b,w,l}
* mess is wrapped to this, as are the SH-specific ctrl_in/out routines.
static inline unsigned char sh64_in8(const volatile void __iomem *addr)
return *(volatile unsigned char __force *)addr;
static inline unsigned short sh64_in16(const volatile void __iomem *addr)
return *(volatile unsigned short __force *)addr;
static inline unsigned int sh64_in32(const volatile void __iomem *addr)
return *(volatile unsigned int __force *)addr;
static inline unsigned long long sh64_in64(const volatile void __iomem *addr)
return *(volatile unsigned long long __force *)addr;
static inline void sh64_out8(unsigned char b, volatile void __iomem *addr)
*(volatile unsigned char __force *)addr = b;
static inline void sh64_out16(unsigned short b, volatile void __iomem *addr)
*(volatile unsigned short __force *)addr = b;
static inline void sh64_out32(unsigned int b, volatile void __iomem *addr)
*(volatile unsigned int __force *)addr = b;
static inline void sh64_out64(unsigned long long b, volatile void __iomem *addr)
*(volatile unsigned long long __force *)addr = b;
#define readb(addr) sh64_in8(addr)
#define readw(addr) sh64_in16(addr)
#define readl(addr) sh64_in32(addr)
#define readb_relaxed(addr) sh64_in8(addr)
#define readw_relaxed(addr) sh64_in16(addr)
#define readl_relaxed(addr) sh64_in32(addr)
#define writeb(b, addr) sh64_out8(b, addr)
#define writew(b, addr) sh64_out16(b, addr)
#define writel(b, addr) sh64_out32(b, addr)
#define ctrl_inb(addr) sh64_in8(ioport_map(addr, 1))
#define ctrl_inw(addr) sh64_in16(ioport_map(addr, 2))
#define ctrl_inl(addr) sh64_in32(ioport_map(addr, 4))
#define ctrl_outb(b, addr) sh64_out8(b, ioport_map(addr, 1))
#define ctrl_outw(b, addr) sh64_out16(b, ioport_map(addr, 2))
#define ctrl_outl(b, addr) sh64_out32(b, ioport_map(addr, 4))
#define ioread8(addr) sh64_in8(addr)
#define ioread16(addr) sh64_in16(addr)
#define ioread32(addr) sh64_in32(addr)
#define iowrite8(b, addr) sh64_out8(b, addr)
#define iowrite16(b, addr) sh64_out16(b, addr)
#define iowrite32(b, addr) sh64_out32(b, addr)
#define inb(addr) ctrl_inb(addr)
#define inw(addr) ctrl_inw(addr)
#define inl(addr) ctrl_inl(addr)
#define outb(b, addr) ctrl_outb(b, addr)
#define outw(b, addr) ctrl_outw(b, addr)
#define outl(b, addr) ctrl_outl(b, addr)
void outsw(unsigned long port, const void *addr, unsigned long count);
void insw(unsigned long port, void *addr, unsigned long count);
void outsl(unsigned long port, const void *addr, unsigned long count);
void insl(unsigned long port, void *addr, unsigned long count);
#define inb_p(addr) inb(addr)
#define inw_p(addr) inw(addr)
#define inl_p(addr) inl(addr)
#define outb_p(x,addr) outb(x,addr)
#define outw_p(x,addr) outw(x,addr)
#define outl_p(x,addr) outl(x,addr)
#define __raw_readb readb
#define __raw_readw readw
#define __raw_readl readl
#define __raw_writeb writeb
#define __raw_writew writew
#define __raw_writel writel
void memcpy_toio(void __iomem *to, const void *from, long count);
void memcpy_fromio(void *to, void __iomem *from, long count);
#define mmiowb()
#ifdef __KERNEL__
extern unsigned long smsc_superio_virt;
extern unsigned long pciio_virt;
#define IO_SPACE_LIMIT 0xffffffff
* Change virtual addresses to physical addresses and vv.
* These are trivial on the 1:1 Linux/SuperH mapping
static inline unsigned long virt_to_phys(volatile void * address)
return __pa(address);
static inline void * phys_to_virt(unsigned long address)
return __va(address);
extern void * __ioremap(unsigned long phys_addr, unsigned long size,
unsigned long flags);
static inline void * ioremap(unsigned long phys_addr, unsigned long size)
return __ioremap(phys_addr, size, 1);
static inline void * ioremap_nocache (unsigned long phys_addr, unsigned long size)
return __ioremap(phys_addr, size, 0);
extern void iounmap(void *addr);
unsigned long onchip_remap(unsigned long addr, unsigned long size, const char* name);
extern void onchip_unmap(unsigned long vaddr);
* Convert a physical pointer to a virtual kernel pointer for /dev/mem
* access
#define xlate_dev_mem_ptr(p) __va(p)
* Convert a virtual cached pointer to an uncached pointer
#define xlate_dev_kmem_ptr(p) p
#endif /* __KERNEL__ */
#endif /* __ASM_SH64_IO_H */