diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig
index f0d22cd..149214b 100644
--- a/drivers/ssb/Kconfig
+++ b/drivers/ssb/Kconfig
@@ -80,6 +80,15 @@
 
 	  If unsure, say N
 
+config SSB_HOST_SOC
+	bool "Support for SSB bus on SoC"
+	depends on SSB
+	help
+	  Host interface for a SSB directly mapped into memory. This is
+	  for some Broadcom SoCs from the BCM47xx and BCM53xx lines.
+
+	  If unsure, say N
+
 config SSB_SILENT
 	bool "No SSB kernel messages"
 	depends on SSB && EXPERT
diff --git a/drivers/ssb/Makefile b/drivers/ssb/Makefile
index 30194c5..64a0968 100644
--- a/drivers/ssb/Makefile
+++ b/drivers/ssb/Makefile
@@ -7,7 +7,7 @@
 ssb-$(CONFIG_SSB_PCIHOST)		+= pci.o pcihost_wrapper.o
 ssb-$(CONFIG_SSB_PCMCIAHOST)		+= pcmcia.o bridge_pcmcia_80211.o
 ssb-$(CONFIG_SSB_SDIOHOST)		+= sdio.o
-ssb-y					+= host_soc.o
+ssb-$(CONFIG_SSB_HOST_SOC)		+= host_soc.o
 
 # built-in drivers
 ssb-y					+= driver_chipcommon.o
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index bea823e..5d1e9a0 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -761,6 +761,7 @@
 EXPORT_SYMBOL(ssb_bus_sdiobus_register);
 #endif /* CONFIG_SSB_PCMCIAHOST */
 
+#ifdef CONFIG_SSB_HOST_SOC
 int ssb_bus_ssbbus_register(struct ssb_bus *bus, unsigned long baseaddr,
 			    ssb_invariants_func_t get_invariants)
 {
@@ -777,6 +778,7 @@
 
 	return err;
 }
+#endif
 
 int __ssb_driver_register(struct ssb_driver *drv, struct module *owner)
 {
diff --git a/drivers/ssb/ssb_private.h b/drivers/ssb/ssb_private.h
index 0a756c2..15bfd5c 100644
--- a/drivers/ssb/ssb_private.h
+++ b/drivers/ssb/ssb_private.h
@@ -161,7 +161,9 @@
  * host_soc.c
  **************************************************/
 
+#ifdef CONFIG_SSB_HOST_SOC
 extern const struct ssb_bus_ops ssb_host_soc_ops;
+#endif
 
 /* scan.c */
 extern const char *ssb_core_name(u16 coreid);