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Diffstat (limited to 'include/asm-sparc/io.h')
-rw-r--r-- | include/asm-sparc/io.h | 98 |
1 files changed, 0 insertions, 98 deletions
diff --git a/include/asm-sparc/io.h b/include/asm-sparc/io.h deleted file mode 100644 index 0c5d86c..0000000 --- a/include/asm-sparc/io.h +++ /dev/null @@ -1,98 +0,0 @@ -/* SPARC I/O definitions - * - * (C) Copyright 2007 - * Daniel Hellstrom, Gaisler Research, daniel@gaisler.com. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of - * the License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - * - */ - -#ifndef _SPARC_IO_H -#define _SPARC_IO_H - -/* Nothing to sync, total store ordering (TSO)... */ -#define sync() - -/* Forces a cache miss on read/load. - * On some architectures we need to bypass the cache when reading - * I/O registers so that we are not reading the same status word - * over and over again resulting in a hang (until an IRQ if lucky) - * - */ -#ifndef CONFIG_SYS_HAS_NO_CACHE -#define READ_BYTE(var) SPARC_NOCACHE_READ_BYTE((unsigned int)(var)) -#define READ_HWORD(var) SPARC_NOCACHE_READ_HWORD((unsigned int)(var)) -#define READ_WORD(var) SPARC_NOCACHE_READ((unsigned int)(var)) -#define READ_DWORD(var) SPARC_NOCACHE_READ_DWORD((unsigned int)(var)) -#else -#define READ_BYTE(var) (var) -#define READ_HWORD(var) (var) -#define READ_WORD(var) (var) -#define READ_DWORD(var) (var) -#endif - -/* - * Generic virtual read/write. - */ -#define __arch_getb(a) (READ_BYTE(a)) -#define __arch_getw(a) (READ_HWORD(a)) -#define __arch_getl(a) (READ_WORD(a)) -#define __arch_getq(a) (READ_DWORD(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)) - -#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) -#define __raw_readq(a) __arch_getq(a) - -/* - * 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 |