Merge with /home/hs/jupiter/u-boot

[oweals/u-boot.git] / include / asm-nios / io.h

diff --git a/include/asm-nios/io.h b/include/asm-nios/io.h
index 3cdb7039ff82ea0c41d1c399601650ca7f5b5a7e..d77695abb9e1ccd1c9ff30cb327c7f8bd0f31f95 100644 (file)
--- a/include/asm-nios/io.h
+++ b/include/asm-nios/io.h
@@ -1 +1,104 @@
-/*FIXME: Implement this! */
+/*
+ * (C) Copyright 2003, Psyent Corporation <www.psyent.com>
+ * Scott McNutt <smcnutt@psyent.com>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 __ASM_NIOS_IO_H_
+#define __ASM_NIOS_IO_H_
+
+#define readb(addr)\
+       ({unsigned char val;\
+        asm volatile(  "       pfxio   0               \n"\
+                       "       ld      %0, [%1]        \n"\
+                       "       ext8d   %0, %1          \n"\
+                       :"=r"(val) : "r" (addr)); val;})
+
+#define readw(addr)\
+       ({unsigned short val;\
+        asm volatile(  "       pfxio   0               \n"\
+                       "       ld      %0, [%1]        \n"\
+                       "       ext16d  %0, %1          \n"\
+                       :"=r"(val) : "r" (addr)); val;})
+
+#define readl(addr)\
+       ({unsigned long val;\
+        asm volatile(  "       pfxio   0               \n"\
+                       "       ld      %0, [%1]        \n"\
+                       :"=r"(val) : "r" (addr)); val;})
+
+#define writeb(addr,val)\
+       asm volatile (  "       fill8   %%r0, %1        \n"\
+                       "       st8d    [%0], %%r0      \n"\
+                       : : "r" (addr), "r" (val) : "r0")
+
+#define writew(addr,val)\
+       asm volatile (  "       fill16  %%r0, %1        \n"\
+                       "       st16d   [%0], %%r0      \n"\
+                       : : "r" (addr), "r" (val) : "r0")
+
+#define writel(addr,val)\
+       asm volatile (  "       st      [%0], %1        \n"\
+                       : : "r" (addr), "r" (val))
+
+#define inb(addr)      readb(addr)
+#define inw(addr)      readw(addr)
+#define inl(addr)      readl(addr)
+#define outb(val,addr) writeb(addr,val)
+#define outw(val,addr) writew(addr,val)
+#define outl(val,addr) writel(addr,val)
+
+static inline void insb (unsigned long port, void *dst, unsigned long count)
+{
+       unsigned char *p = dst;
+       while (count--) *p++ = inb (port);
+}
+static inline void insw (unsigned long port, void *dst, unsigned long count)
+{
+       unsigned short *p = dst;
+       while (count--) *p++ = inw (port);
+}
+static inline void insl (unsigned long port, void *dst, unsigned long count)
+{
+       unsigned long *p = dst;
+       while (count--) *p++ = inl (port);
+}
+
+static inline void outsb (unsigned long port, const void *src, unsigned long count)
+{
+       const unsigned char *p = src;
+       while (count--) outb (*p++, port);
+}
+
+static inline void outsw (unsigned long port, const void *src, unsigned long count)
+{
+       const unsigned short *p = src;
+       while (count--) outw (*p++, port);
+}
+static inline void outsl (unsigned long port, const void *src, unsigned long count)
+{
+       const unsigned long *p = src;
+       while (count--) outl (*p++, port);
+}
+
+static inline void sync(void)
+{
+}
+
+#endif /* __ASM_NIOS_IO_H_ */