diff options
| -rw-r--r-- | arch/mips/jazz/io.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/arch/mips/jazz/io.c b/arch/mips/jazz/io.c deleted file mode 100644 index e86904454c89..000000000000 --- a/arch/mips/jazz/io.c +++ /dev/null @@ -1,135 +0,0 @@ -/* - * 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. - * - * Low level I/O functions for Jazz family machines. - * - * Copyright (C) 1997 by Ralf Baechle. - */ -#include <linux/string.h> -#include <linux/spinlock.h> -#include <asm/addrspace.h> -#include <asm/system.h> -#include <asm/jazz.h> - -/* - * Map an 16mb segment of the EISA address space to 0xe3000000; - */ -static inline void map_eisa_address(unsigned long address) -{ - /* XXX */ - /* We've got an wired entry in the TLB. We just need to modify it. - fast and clean. But since we want to get rid of wired entries - things are a little bit more complicated ... */ -} - -static unsigned char jazz_readb(unsigned long addr) -{ - unsigned char res; - - map_eisa_address(addr); - addr &= 0xffffff; - res = *(volatile unsigned char *) (JAZZ_EISA_BASE + addr); - - return res; -} - -static unsigned short jazz_readw(unsigned long addr) -{ - unsigned short res; - - map_eisa_address(addr); - addr &= 0xffffff; - res = *(volatile unsigned char *) (JAZZ_EISA_BASE + addr); - - return res; -} - -static unsigned int jazz_readl(unsigned long addr) -{ - unsigned int res; - - map_eisa_address(addr); - addr &= 0xffffff; - res = *(volatile unsigned char *) (JAZZ_EISA_BASE + addr); - - return res; -} - -static void jazz_writeb(unsigned char val, unsigned long addr) -{ - map_eisa_address(addr); - addr &= 0xffffff; - *(volatile unsigned char *) (JAZZ_EISA_BASE + addr) = val; -} - -static void jazz_writew(unsigned short val, unsigned long addr) -{ - map_eisa_address(addr); - addr &= 0xffffff; - *(volatile unsigned char *) (JAZZ_EISA_BASE + addr) = val; -} - -static void jazz_writel(unsigned int val, unsigned long addr) -{ - map_eisa_address(addr); - addr &= 0xffffff; - *(volatile unsigned char *) (JAZZ_EISA_BASE + addr) = val; -} - -static void jazz_memset_io(unsigned long addr, int val, unsigned long len) -{ - unsigned long waddr; - - waddr = JAZZ_EISA_BASE | (addr & 0xffffff); - while(len) { - unsigned long fraglen; - - fraglen = (~addr + 1) & 0xffffff; - fraglen = (fraglen < len) ? fraglen : len; - map_eisa_address(addr); - memset((char *)waddr, val, fraglen); - addr += fraglen; - waddr = waddr + fraglen - 0x1000000; - len -= fraglen; - } -} - -static void jazz_memcpy_fromio(unsigned long to, unsigned long from, unsigned long len) -{ - unsigned long waddr; - - waddr = JAZZ_EISA_BASE | (from & 0xffffff); - while(len) { - unsigned long fraglen; - - fraglen = (~from + 1) & 0xffffff; - fraglen = (fraglen < len) ? fraglen : len; - map_eisa_address(from); - memcpy((void *)to, (void *)waddr, fraglen); - to += fraglen; - from += fraglen; - waddr = waddr + fraglen - 0x1000000; - len -= fraglen; - } -} - -static void jazz_memcpy_toio(unsigned long to, unsigned long from, unsigned long len) -{ - unsigned long waddr; - - waddr = JAZZ_EISA_BASE | (to & 0xffffff); - while(len) { - unsigned long fraglen; - - fraglen = (~to + 1) & 0xffffff; - fraglen = (fraglen < len) ? fraglen : len; - map_eisa_address(to); - memcpy((char *)to + JAZZ_EISA_BASE, (void *)from, fraglen); - to += fraglen; - from += fraglen; - waddr = waddr + fraglen - 0x1000000; - len -= fraglen; - } -} |