+/* Enumeration to describe the prom major version we have detected. */
+enum prom_major_version {
+ PROM_V0, /* Original sun4c V0 prom */
+ PROM_V2, /* sun4c and early sun4m V2 prom */
+ PROM_V3, /* sun4m and later, up to sun4d/sun4e machines V3 */
+ PROM_P1275, /* IEEE compliant ISA based Sun PROM, only sun4u */
+ PROM_AP1000, /* actually no prom at all */
+};
+
+extern enum prom_major_version prom_vers;
+/* Revision, and firmware revision. */
+extern unsigned int prom_rev, prom_prev;