patch-2.4.6 linux/include/asm-m68k/sbus.h

• Lines: 28
• Date: Mon Jun 11 19:15:27 2001
• Orig file: v2.4.5/linux/include/asm-m68k/sbus.h
• Orig date: Sat Sep 4 13:06:41 1999

diff -u --recursive --new-file v2.4.5/linux/include/asm-m68k/sbus.h linux/include/asm-m68k/sbus.h
@@ -17,4 +17,27 @@
 
 #define ARCH_SUN4  0
 
+/* sbus IO functions stolen from include/asm-sparc/io.h for the serial driver */
+/* No SBUS on the Sun3, kludge -- sam */
+
+extern inline void _sbus_writeb(unsigned char val, unsigned long addr)
+{
+	*(volatile unsigned char *)addr = val;
+}
+
+extern inline unsigned char _sbus_readb(unsigned long addr)
+{
+	return *(volatile unsigned char *)addr;
+}
+
+extern inline void _sbus_writel(unsigned long val, unsigned long addr)
+{
+	*(volatile unsigned long *)addr = val;
+
+}
+
+#define sbus_readb(a) _sbus_readb((unsigned long)a)
+#define sbus_writeb(v, a) _sbus_writeb(v, (unsigned long)a)
+#define sbus_writel(v, a) _sbus_writel(v, (unsigned long)a)
+
 #endif