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Diffstat (limited to 'include/asm-sh/io.h')
| -rw-r--r-- | include/asm-sh/io.h | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/include/asm-sh/io.h b/include/asm-sh/io.h deleted file mode 100644 index ca598a6..0000000 --- a/include/asm-sh/io.h +++ /dev/null @@ -1,270 +0,0 @@ -/* - * linux/include/asm-sh/io.h - * - * Copyright (C) 1996-2000 Russell King - * - * 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. - * - * Modifications: - * 16-Sep-1996 RMK Inlined the inx/outx functions & optimised for both - * constant addresses and variable addresses. - * 04-Dec-1997 RMK Moved a lot of this stuff to the new architecture - * specific IO header files. - * 27-Mar-1999 PJB Second parameter of memcpy_toio is const.. - * 04-Apr-1999 PJB Added check_signature. - * 12-Dec-1999 RMK More cleanups - * 18-Jun-2000 RMK Removed virt_to_* and friends definitions - */ -#ifndef __ASM_SH_IO_H -#define __ASM_SH_IO_H - -#ifdef __KERNEL__ - -#include <linux/types.h> -#include <asm/byteorder.h> - -/* - * Generic virtual read/write. Note that we don't support half-word - * read/writes. We define __arch_*[bl] here, and leave __arch_*w - * to the architecture specific code. - */ -#define __arch_getb(a) (*(volatile unsigned char *)(a)) -#define __arch_getw(a) (*(volatile unsigned short *)(a)) -#define __arch_getl(a) (*(volatile unsigned int *)(a)) - -#define __arch_putb(v, a) (*(volatile unsigned char *)(a) = (v)) -#define __arch_putw(v, a) (*(volatile unsigned short *)(a) = (v)) -#define __arch_putl(v, a) (*(volatile unsigned int *)(a) = (v)) - -extern void __raw_writesb(unsigned int addr, const void *data, int bytelen); -extern void __raw_writesw(unsigned int addr, const void *data, int wordlen); -extern void __raw_writesl(unsigned int addr, const void *data, int longlen); - -extern void __raw_readsb(unsigned int addr, void *data, int bytelen); -extern void __raw_readsw(unsigned int addr, void *data, int wordlen); -extern void __raw_readsl(unsigned int addr, void *data, int longlen); - -#define __raw_writeb(v, a) __arch_putb(v, a) -#define __raw_writew(v, a) __arch_putw(v, a) -#define __raw_writel(v, a) __arch_putl(v, a) - -#define __raw_readb(a) __arch_getb(a) -#define __raw_readw(a) __arch_getw(a) -#define __raw_readl(a) __arch_getl(a) - -/* - * The compiler seems to be incapable of optimising constants - * properly. Spell it out to the compiler in some cases. - * These are only valid for small values of "off" (< 1<<12) - */ -#define __raw_base_writeb(val, base, off) __arch_base_putb(val, base, off) -#define __raw_base_writew(val, base, off) __arch_base_putw(val, base, off) -#define __raw_base_writel(val, base, off) __arch_base_putl(val, base, off) - -#define __raw_base_readb(base, off) __arch_base_getb(base, off) -#define __raw_base_readw(base, off) __arch_base_getw(base, off) -#define __raw_base_readl(base, off) __arch_base_getl(base, off) - -/* - * Now, pick up the machine-defined IO definitions - */ -#if 0 /* XXX###XXX */ -#include <asm/arch/io.h> -#endif /* XXX###XXX */ - -/* - * IO port access primitives - * ------------------------- - * - * The SH doesn't have special IO access instructions; all IO is memory - * mapped. Note that these are defined to perform little endian accesses - * only. Their primary purpose is to access PCI and ISA peripherals. - * - * The machine specific io.h include defines __io to translate an "IO" - * address to a memory address. - * - * Note that we prevent GCC re-ordering or caching values in expressions - * by introducing sequence points into the in*() definitions. Note that - * __raw_* do not guarantee this behaviour. - * - * The {in,out}[bwl] macros are for emulating x86-style PCI/ISA IO space. - */ -#define outb(v, p) __raw_writeb(v, p) -#define outw(v, p) __raw_writew(cpu_to_le16(v), p) -#define outl(v, p) __raw_writel(cpu_to_le32(v), p) - -#define inb(p) ({ unsigned int __v = __raw_readb(p); __v; }) -#define inw(p) ({ unsigned int __v = __le16_to_cpu(__raw_readw(p)); __v; }) -#define inl(p) ({ unsigned int __v = __le32_to_cpu(__raw_readl(p)); __v; }) - -#define outsb(p, d, l) __raw_writesb(p, d, l) -#define outsw(p, d, l) __raw_writesw(p, d, l) -#define outsl(p, d, l) __raw_writesl(p, d, l) - -#define insb(p, d, l) __raw_readsb(p, d, l) -#define insw(p, d, l) __raw_readsw(p, d, l) -#define insl(p, d, l) __raw_readsl(p, d, l) - -#define outb_p(val, port) outb((val), (port)) -#define outw_p(val, port) outw((val), (port)) -#define outl_p(val, port) outl((val), (port)) -#define inb_p(port) inb((port)) -#define inw_p(port) inw((port)) -#define inl_p(port) inl((port)) - -#define outsb_p(port, from, len) outsb(port, from, len) -#define outsw_p(port, from, len) outsw(port, from, len) -#define outsl_p(port, from, len) outsl(port, from, len) -#define insb_p(port, to, len) insb(port, to, len) -#define insw_p(port, to, len) insw(port, to, len) -#define insl_p(port, to, len) insl(port, to, len) - -/* for U-Boot PCI */ -#define out_8(port, val) outb(val, port) -#define out_le16(port, val) outw(val, port) -#define out_le32(port, val) outl(val, port) -#define in_8(port) inb(port) -#define in_le16(port) inw(port) -#define in_le32(port) inl(port) -/* - * ioremap and friends. - * - * ioremap takes a PCI memory address, as specified in - * linux/Documentation/IO-mapping.txt. If you want a - * physical address, use __ioremap instead. - */ -extern void *__ioremap(unsigned long offset, size_t size, unsigned long flags); -extern void __iounmap(void *addr); - -/* - * Generic ioremap support. - * - * Define: - * iomem_valid_addr(off,size) - * iomem_to_phys(off) - */ -#ifdef iomem_valid_addr -#define __arch_ioremap(off, sz, nocache) \ - ({ \ - unsigned long _off = (off), _size = (sz); \ - void *_ret = (void *)0; \ - if (iomem_valid_addr(_off, _size)) \ - _ret = __ioremap(iomem_to_phys(_off), _size, 0); \ - _ret; \ - }) - -#define __arch_iounmap __iounmap -#endif - -#define ioremap(off, sz) __arch_ioremap((off), (sz), 0) -#define ioremap_nocache(off, sz) __arch_ioremap((off), (sz), 1) -#define iounmap(_addr) __arch_iounmap(_addr) - -/* - * DMA-consistent mapping functions. These allocate/free a region of - * uncached, unwrite-buffered mapped memory space for use with DMA - * devices. This is the "generic" version. The PCI specific version - * is in pci.h - */ -extern void *consistent_alloc(int gfp, size_t size, dma_addr_t *handle); -extern void consistent_free(void *vaddr, size_t size, dma_addr_t handle); -extern void consistent_sync(void *vaddr, size_t size, int rw); - -/* - * String version of IO memory access ops: - */ -extern void _memcpy_fromio(void *, unsigned long, size_t); -extern void _memcpy_toio(unsigned long, const void *, size_t); -extern void _memset_io(unsigned long, int, size_t); - -/* - * If this architecture has PCI memory IO, then define the read/write - * macros. These should only be used with the cookie passed from - * ioremap. - */ -#ifdef __mem_pci - -#define readb(c) ({ unsigned int __v = __raw_readb(__mem_pci(c)); __v; }) -#define readw(c)\ - ({ unsigned int __v = le16_to_cpu(__raw_readw(__mem_pci(c))); __v; }) -#define readl(c)\ - ({ unsigned int __v = le32_to_cpu(__raw_readl(__mem_pci(c))); __v; }) - -#define writeb(v, c) __raw_writeb(v, __mem_pci(c)) -#define writew(v, c) __raw_writew(cpu_to_le16(v), __mem_pci(c)) -#define writel(v, c) __raw_writel(cpu_to_le32(v), __mem_pci(c)) - -#define memset_io(c, v, l) _memset_io(__mem_pci(c), (v), (l)) -#define memcpy_fromio(a, c, l) _memcpy_fromio((a), __mem_pci(c), (l)) -#define memcpy_toio(c, a, l) _memcpy_toio(__mem_pci(c), (a), (l)) - -#define eth_io_copy_and_sum(s, c, l, b) \ - eth_copy_and_sum((s), __mem_pci(c), (l), (b)) - -static inline int -check_signature(unsigned long io_addr, const unsigned char *signature, - int length) -{ - int retval = 0; - do { - if (readb(io_addr) != *signature) - goto out; - io_addr++; - signature++; - length--; - } while (length); - retval = 1; -out: - return retval; -} - -#elif !defined(readb) - -#define readb(addr) __raw_readb(addr) -#define readw(addr) __raw_readw(addr) -#define readl(addr) __raw_readl(addr) -#define writeb(v, addr) __raw_writeb(v, addr) -#define writew(v, addr) __raw_writew(v, addr) -#define writel(v, addr) __raw_writel(v, addr) - -#define check_signature(io, sig, len) (0) - -#endif /* __mem_pci */ - -static inline void sync(void) -{ -} - -/* - * Given a physical address and a length, return a virtual address - * that can be used to access the memory range with the caching - * properties specified by "flags". - */ -#define MAP_NOCACHE (0) -#define MAP_WRCOMBINE (0) -#define MAP_WRBACK (0) -#define MAP_WRTHROUGH (0) - -static inline void * -map_physmem(phys_addr_t paddr, unsigned long len, unsigned long flags) -{ - return (void *)paddr; -} - -/* - * Take down a mapping set up by map_physmem(). - */ -static inline void unmap_physmem(void *vaddr, unsigned long flags) -{ - -} - -static inline phys_addr_t virt_to_phys(void * vaddr) -{ - return (phys_addr_t)(vaddr); -} - -#endif /* __KERNEL__ */ -#endif /* __ASM_SH_IO_H */ |