/* * linux/include/asm-arm/arch-l7200/io.h * * Copyright (C) 2000 Steve Hill (sjhill@cotw.com) * * Changelog: * 03-21-2000 SJH Created from linux/include/asm-arm/arch-nexuspci/io.h * 08-31-2000 SJH Added in IO functions necessary for new drivers */ #ifndef __ASM_ARM_ARCH_IO_H #define __ASM_ARM_ARCH_IO_H #include #define IO_SPACE_LIMIT 0xffffffff /* * There are not real ISA nor PCI buses, so we fake it. */ #define __mem_pci(a) (a) /* * Translated address IO functions * * IO address has already been translated to a virtual address */ #define outb_t(v,p) (*(volatile unsigned char *)(p) = (v)) #define inb_t(p) (*(volatile unsigned char *)(p)) #define outw_t(v,p) (*(volatile unsigned int *)(p) = (v)) #define inw_t(p) (*(volatile unsigned int *)(p)) #define outl_t(v,p) (*(volatile unsigned long *)(p) = (v)) #define inl_t(p) (*(volatile unsigned long *)(p)) /* * FIXME - These are to allow for linking. On all the other * ARM platforms, the entire IO space is contiguous. * The 7200 has three separate IO spaces. The below * macros will eventually become more involved. Use * with caution and don't be surprised by kernel oopses!!! */ #define inb(p) inb_t(p) #define inw(p) inw_t(p) #define inl(p) inl_t(p) #define outb(v,p) outb_t(v,p) #define outw(v,p) outw_t(v,p) #define outl(v,p) outl_t(v,p) #endif