bcma: move initializing of struct bcma_bus to own function.

This makes it possible to use this code in some other method.
Acked-by: NRafał Miłecki <zajec5@gmail.com>
Signed-off-by: NHauke Mehrtens <hauke@hauke-m.de>
Acked-by: NRalf Baechle <ralf@linux-mips.org>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/bcma/scan.c

@@ -312,15 +312,10 @@ static int bcma_get_next_core(struct bcma_bus *bus, u32 __iomem **eromptr,
 	return 0;
 }
 
-int bcma_bus_scan(struct bcma_bus *bus)
+static void bcma_init_bus(struct bcma_bus *bus)
 {
-	u32 erombase;
-	u32 __iomem *eromptr, *eromend;
-
 	s32 tmp;
 
-	int err;
-
 	INIT_LIST_HEAD(&bus->cores);
 	bus->nr_cores = 0;
 
@@ -330,6 +325,16 @@ int bcma_bus_scan(struct bcma_bus *bus)
 	bus->chipinfo.id = (tmp & BCMA_CC_ID_ID) >> BCMA_CC_ID_ID_SHIFT;
 	bus->chipinfo.rev = (tmp & BCMA_CC_ID_REV) >> BCMA_CC_ID_REV_SHIFT;
 	bus->chipinfo.pkg = (tmp & BCMA_CC_ID_PKG) >> BCMA_CC_ID_PKG_SHIFT;
+}
+
+int bcma_bus_scan(struct bcma_bus *bus)
+{
+	u32 erombase;
+	u32 __iomem *eromptr, *eromend;
+
+	int err;
+
+	bcma_init_bus(bus);
 
 	erombase = bcma_scan_read32(bus, 0, BCMA_CC_EROM);
 	eromptr = bus->mmio;