bcm53xx: sprom: prepare to support other hosttype-s

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 44463

target/linux/bcm53xx/files/drivers/misc/bcm47xx-sprom.c

@@ -673,7 +673,14 @@ static int bcm47xx_sprom_init(struct bcma_bus *bus, struct ssb_sprom *out)
 	if (!nvram_dev)
 		return -ENOMEM;
 
+	switch (bus->hosttype) {
+	case BCMA_HOSTTYPE_SOC:
 		fill.prefix = of_get_property(np, "prefix", NULL);
+		break;
+	default:
+		pr_err("Unable to fill SPROM for given hosttype.\n");
+		return -EINVAL;
+	}
 
 	fill.fallback = false;
 	fill.getenv = bcm47xx_sprom_getenv;