diff --git a/drivers/atm/solos-pci.c b/drivers/atm/solos-pci.c
index 1ff7304..6fe8f8f 100644
--- a/drivers/atm/solos-pci.c
+++ b/drivers/atm/solos-pci.c
@@ -1104,7 +1104,8 @@
 		iowrite32(0xF0, card->config_regs + FLAGS_ADDR);
 	}
 
-	card->nr_ports = 2; /* FIXME: Detect daughterboard */
+	data32 = ioread32(card->config_regs + PORTS);
+	card->nr_ports = (data32 & 0x000000FF);
 
 	pci_set_drvdata(dev, card);