zorro: ZTWO_VADDR() should return "void __iomem *"

ZTWO_VADDR() converts from physical to virtual I/O addresses, so it should
return "void __iomem *" instead of "unsigned long".

This allows to drop several casts, but requires adding a few casts to
accomodate legacy driver frameworks that store "unsigned long" I/O
addresses.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>

drivers/net/ethernet/8390/hydra.c

@@ -113,7 +113,7 @@ static const struct net_device_ops hydra_netdev_ops = {
 static int hydra_init(struct zorro_dev *z)
 {
     struct net_device *dev;
-    unsigned long board = ZTWO_VADDR(z->resource.start);
+    unsigned long board = (unsigned long)ZTWO_VADDR(z->resource.start);
     unsigned long ioaddr = board+HYDRA_NIC_BASE;
     const char name[] = "NE2000";
     int start_page, stop_page;

drivers/net/ethernet/8390/zorro8390.c

@@ -287,7 +287,7 @@ static const struct net_device_ops zorro8390_netdev_ops = {
 };
 
 static int zorro8390_init(struct net_device *dev, unsigned long board,
-			  const char *name, unsigned long ioaddr)
+			  const char *name, void __iomem *ioaddr)
 {
 	int i;
 	int err;
@@ -354,7 +354,7 @@ static int zorro8390_init(struct net_device *dev, unsigned long board,
 	start_page = NESM_START_PG;
 	stop_page = NESM_STOP_PG;
 
-	dev->base_addr = ioaddr;
+	dev->base_addr = (unsigned long)ioaddr;
 	dev->irq = IRQ_AMIGA_PORTS;
 
 	/* Install the Interrupt handler */