diff --git a/ipc.h b/ipc.h
index bb3ca77..1071f08 100644
--- a/ipc.h
+++ b/ipc.h
@@ -77,6 +77,7 @@ Copyright (C) 2009		John Kelley <wiidev@kelley.ca>
 // etc.
 
 #define IPC_SDHC_DISCOVER 0x0000
+#define IPC_SDHC_EXIT 	  0x0001
 
 #define IPC_SDMMC_ACK	0x0000
 #define IPC_SDMMC_READ	0x0001
diff --git a/sdhc.c b/sdhc.c
index 336c0a3..5b072d9 100644
--- a/sdhc.c
+++ b/sdhc.c
@@ -1033,6 +1033,14 @@ void sdhc_init(void)
 //	sdhc_host_found(&__softc, 0, 0x0d080000, 1);
 }
 
+void sdhc_exit(void)
+{
+#ifdef CAN_HAZ_IRQ
+	irq_disable(IRQ_SDHC);
+#endif
+	sdhc_shutdown(&__softc);
+}
+
 #ifdef CAN_HAZ_IPC
 void sdhc_ipc(volatile ipc_request *req)
 {
@@ -1040,6 +1048,9 @@ void sdhc_ipc(volatile ipc_request *req)
 	case IPC_SDHC_DISCOVER:
 		sdmmc_needs_discover((struct device *)req->args[0]);
 		break;
+	case IPC_SDHC_EXIT:
+		sdhc_exit();
+		ipc_post(req->code, req->tag, 0);
 	}
 }
 #endif
diff --git a/sdhcvar.h b/sdhcvar.h
index d098a58..3398d09 100644
--- a/sdhcvar.h
+++ b/sdhcvar.h
@@ -57,6 +57,7 @@ void	sdhc_power(int, void *);
 void	sdhc_shutdown(void *);
 int	sdhc_intr(void *);
 void	sdhc_init(void);
+void	sdhc_exit(void);
 void	sdhc_irq(void);
 #ifdef CAN_HAZ_IPC
 void	sdhc_ipc(volatile ipc_request *req);