diff --git a/sys/dev/isp/isp_pci.c b/sys/dev/isp/isp_pci.c
index 8410ea64d725..e152e99ee67b 100644
--- a/sys/dev/isp/isp_pci.c
+++ b/sys/dev/isp/isp_pci.c
@@ -46,6 +46,11 @@ __FBSDID("$FreeBSD$");
 #include <sys/malloc.h>
 #include <sys/uio.h>
 
+#ifdef __sparc64__
+#include <dev/ofw/openfirm.h>
+#include <machine/ofw_machdep.h>
+#endif
+
 #include <dev/isp/isp_freebsd.h>
 
 static uint32_t isp_pci_rd_reg(ispsoftc_t *, int);
@@ -517,7 +522,11 @@ isp_get_specific_options(device_t dev, int chan, ispsoftc_t *isp)
 		if (IS_FC(isp)) {
 			ISP_FC_PC(isp, chan)->default_id = 109 - chan;
 		} else {
+#ifdef __sparc64__
+			ISP_SPI_PC(isp, chan)->iid = OF_getscsinitid(dev);
+#else
 			ISP_SPI_PC(isp, chan)->iid = 7;
+#endif
 		}
 	} else {
 		if (IS_FC(isp)) {
diff --git a/sys/dev/isp/isp_sbus.c b/sys/dev/isp/isp_sbus.c
index 895645a673af..34dcc09f9e57 100644
--- a/sys/dev/isp/isp_sbus.c
+++ b/sys/dev/isp/isp_sbus.c
@@ -41,8 +41,10 @@ __FBSDID("$FreeBSD$");
 #include <sys/resource.h>
 
 #include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/openfirm.h>
 
 #include <machine/bus.h>
+#include <machine/ofw_machdep.h>
 #include <machine/resource.h>
 #include <sys/rman.h>
 #include <sparc64/sbus/sbusvar.h>
@@ -264,11 +266,7 @@ isp_sbus_attach(device_t dev)
 		isp->isp_confopts |= ISP_CFG_OWNLOOPID;
 	}
 	if (default_id == -1) {
-		/*
-		 * XXX: should be a way to get properties w/o having
-		 * XXX: to call OF_xxx functions
-		 */
-		default_id = 7;
+		default_id = OF_getscsinitid(dev);
 	}
 	ISP_SPI_PC(isp, 0)->iid = default_id;