[SPARC]: Beginnings of generic of_device framework.

The idea is to fully construct the device register and
interrupt values into these of_device objects, and convert
all of SBUS, EBUS, ISA drivers to use this new stuff.

Much ideas and code taken from Ben H.'s powerpc work.

Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/asm-sparc/prom.h b/include/asm-sparc/prom.h
index 7032d02..b4a061c 100644
--- a/include/asm-sparc/prom.h
+++ b/include/asm-sparc/prom.h
@@ -69,6 +69,8 @@
 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
 
+#define OF_BAD_ADDR	((u64)-1)
+
 static inline void set_node_proc_entry(struct device_node *dn, struct proc_dir_entry *de)
 {
 	dn->pde = de;