bcma: Account for variable PCI memory base/size

PCI Memory Resource start address and size are variable, dependent on
the H/W configuration.  Modify the computation of io_map_base to use the
computed values.
Signed-off-by: Nathan Hintz <nlhintz@hotmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/bcma/driver_pci_host.c

@@ -491,8 +491,8 @@ void __devinit bcma_core_pci_hostmode_init(struct bcma_drv_pci *pc)
 	/* Ok, ready to run, register it to the system.
 	 * The following needs change, if we want to port hostmode
 	 * to non-MIPS platform. */
-	io_map_base = (unsigned long)ioremap_nocache(BCMA_SOC_PCI_MEM,
-						     0x04000000);
+	io_map_base = (unsigned long)ioremap_nocache(pc_host->mem_resource.start,
+						     resource_size(&pc_host->mem_resource));
 	pc_host->pci_controller.io_map_base = io_map_base;
 	set_io_port_base(pc_host->pci_controller.io_map_base);
 	/* Give some time to the PCI controller to configure itself with the new