Here is an alternate approach to getting rid of the static in cs5536 smbus. 

Set up a global var variable called spd_inited. It is set when spd is inited. 

For simple cases, nothing is visible to initram main. For complex cases, 
initram main can do the work and set this variable. 

This compiles and runs on dbe62, which is actually meaningless since dbe62 
has not smbus, but hey ...

Signed-off-by: Ronald G. Minnich <rminnich@gmail.com>
Index: southbridge/amd/cs5536/smbus_initram.c
===================================================================
--- southbridge/amd/cs5536/smbus_initram.c	(revision 862)
+++ southbridge/amd/cs5536/smbus_initram.c	(working copy)
@@ -321,11 +321,11 @@
  */
 int smbus_read_byte(u16 device, u8 address)
 {
-	static int first_time = 1;
+	struct global_vars *g = global_vars();
 
-	if (first_time) {
+	if (!g->spd_inited) {
 		smbus_init();
-		first_time = 0;
+		g->spd_inited = 1;
 	}
 
 	return do_smbus_read_byte(SMBUS_IO_BASE, device, address);
Index: include/globalvars.h
===================================================================
--- include/globalvars.h	(revision 862)
+++ include/globalvars.h	(working copy)
@@ -53,6 +53,8 @@
 	/* these two values are of interest in many stages */
 	u32 init_detected;
 	struct sys_info sys_info;
+	/* has the spd hardware been set up? */
+	int spd_inited;
 };
 
 #endif /* GLOBALVARS_H */