diff --git a/sys/conf/files b/sys/conf/files
index c9bbe9a8087a..a67a535b3431 100644
--- a/sys/conf/files
+++ b/sys/conf/files
@@ -800,7 +800,7 @@ dev/xe/if_xe.c			optional xe
 dev/xe/if_xe_pccard.c		optional xe card
 dev/xe/if_xe_pccard.c		optional xe pccard
 dev/zs/zs.c			optional zs
-dev/zs/zs_sbus.c		optional zs sbus
+dev/zs/zs_sbus.c		optional zs fhc sbus
 fs/deadfs/dead_vnops.c	standard
 fs/devfs/devfs_devs.c		standard
 fs/devfs/devfs_rule.c		standard
diff --git a/sys/dev/zs/zs_sbus.c b/sys/dev/zs/zs_sbus.c
index 01b76f370d8b..a1b266637fb6 100644
--- a/sys/dev/zs/zs_sbus.c
+++ b/sys/dev/zs/zs_sbus.c
@@ -37,22 +37,32 @@
 #include <sys/rman.h>
 
 #include <ofw/openfirm.h>
+
+#include <sparc64/fhc/fhcreg.h>
+#include <sparc64/fhc/fhcvar.h>
+
 #include <sparc64/sbus/sbusvar.h>
 
 #include <dev/zs/z8530reg.h>
 #include <dev/zs/z8530var.h>
 
-#define	ZS_SBUS_CHAN_A	4
-#define	ZS_SBUS_CHAN_B	0
+#define	ZS_SBUS_CHAN_A		4
+#define	ZS_SBUS_CHAN_B		0
 
-#define	ZS_SBUS_CSR	0
-#define	ZS_SBUS_DATA	2
+#define	ZS_SBUS_CSR		0
+#define	ZS_SBUS_DATA		2
 
 #define	ZS_SBUS_CLOCK		(9600 * 512)
 #define	ZS_SBUS_CLOCK_DIV	(16)
 
 #define	ZS_SBUS_DEF_SPEED	(9600)
 
+enum zs_device_ivars {
+	ZS_IVAR_NODE
+};
+
+__BUS_ACCESSOR(zs, node, ZS, NODE, phandle_t)
+
 struct zs_sbus_softc {
 	struct zs_softc		sc_zs;
 	struct resource		*sc_irqres;
@@ -62,21 +72,41 @@ struct zs_sbus_softc {
 	int			sc_memrid;
 };
 
-static int zs_sbus_attach(device_t dev);
-static int zs_sbus_detach(device_t dev);
+static int zs_fhc_probe(device_t dev);
+static int zs_fhc_attach(device_t dev);
+static int zs_fhc_read_ivar(device_t dev, device_t child, int which,
+    uintptr_t *result);
+
 static int zs_sbus_probe(device_t dev);
+static int zs_sbus_attach(device_t dev);
+static int zs_sbus_read_ivar(device_t dev, device_t child, int which,
+    uintptr_t *result);
+
+static int zs_sbus_detach(device_t dev);
 
 static int zstty_sbus_attach(device_t dev);
 static int zstty_sbus_probe(device_t dev);
 
 static int zstty_keyboard(device_t dev);
 
+static device_method_t zs_fhc_methods[] = {
+	DEVMETHOD(device_probe,		zs_fhc_probe),
+	DEVMETHOD(device_attach,	zs_fhc_attach),
+	DEVMETHOD(device_detach,	zs_sbus_detach),
+
+	DEVMETHOD(bus_print_child,	bus_generic_print_child),
+	DEVMETHOD(bus_read_ivar,	zs_fhc_read_ivar),
+
+	{ 0, 0 }
+};
+
 static device_method_t zs_sbus_methods[] = {
 	DEVMETHOD(device_probe,		zs_sbus_probe),
 	DEVMETHOD(device_attach,	zs_sbus_attach),
 	DEVMETHOD(device_detach,	zs_sbus_detach),
 
 	DEVMETHOD(bus_print_child,	bus_generic_print_child),
+	DEVMETHOD(bus_read_ivar,	zs_sbus_read_ivar),
 
 	{ 0, 0 }
 };
@@ -89,6 +119,12 @@ static device_method_t zstty_sbus_methods[] = {
 	{ 0, 0 }
 };
 
+static driver_t zs_fhc_driver = {
+	"zs",
+	zs_fhc_methods,
+	sizeof(struct zs_sbus_softc),
+};
+
 static driver_t zs_sbus_driver = {
 	"zs",
 	zs_sbus_methods,
@@ -101,11 +137,15 @@ static driver_t zstty_sbus_driver = {
 	sizeof(struct zstty_softc),
 };
 
+static devclass_t zs_fhc_devclass;
 static devclass_t zs_sbus_devclass;
+
+DRIVER_MODULE(zs, fhc, zs_fhc_driver, zs_fhc_devclass, 0, 0);
+DRIVER_MODULE(zs, sbus, zs_sbus_driver, zs_sbus_devclass, 0, 0);
+
 static devclass_t zstty_sbus_devclass;
 
 DRIVER_MODULE(zstty, zs, zstty_sbus_driver, zstty_sbus_devclass, 0, 0);
-DRIVER_MODULE(zs, sbus, zs_sbus_driver, zs_sbus_devclass, 0, 0);
 
 static uint8_t zs_sbus_init_reg[16] = {
 	0,	/* 0: CMD (reset, etc.) */
@@ -126,6 +166,15 @@ static uint8_t zs_sbus_init_reg[16] = {
 	ZSWR15_BREAK_IE,
 };
 
+static int
+zs_fhc_probe(device_t dev)
+{
+
+	if (strcmp(fhc_get_name(dev), "zs") != 0 ||
+	    device_get_unit(dev) != 0)
+		return (ENXIO);
+	return (zs_probe(dev));
+}
 
 static int
 zs_sbus_probe(device_t dev)
@@ -137,6 +186,33 @@ zs_sbus_probe(device_t dev)
 	return (zs_probe(dev));
 }
 
+static int
+zs_fhc_attach(device_t dev)
+{
+	struct zs_sbus_softc *sc;
+
+	sc = device_get_softc(dev);
+	sc->sc_memres = bus_alloc_resource(dev, SYS_RES_MEMORY, &sc->sc_memrid,
+	    0, ~0, 1, RF_ACTIVE);
+	if (sc->sc_memres == NULL)
+		goto error;
+	sc->sc_irqrid = FHC_UART;
+	sc->sc_irqres = bus_alloc_resource(dev, SYS_RES_IRQ, &sc->sc_irqrid, 0,
+	    ~0, 1, RF_ACTIVE);
+	if (sc->sc_irqres == NULL)
+		goto error;
+	if (bus_setup_intr(dev, sc->sc_irqres, INTR_TYPE_TTY | INTR_FAST,
+	    zs_intr, sc, &sc->sc_ih) != 0)
+		goto error;
+	sc->sc_zs.sc_bt = rman_get_bustag(sc->sc_memres);
+	sc->sc_zs.sc_bh = rman_get_bushandle(sc->sc_memres);
+	return (zs_attach(dev));
+
+error:
+	zs_sbus_detach(dev);
+	return (ENXIO);
+}
+
 static int
 zs_sbus_attach(device_t dev)
 {
@@ -181,6 +257,34 @@ zs_sbus_detach(device_t dev)
 	return (0);
 }
 
+static int
+zs_fhc_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
+{
+
+	switch (which) {
+	case ZS_IVAR_NODE:
+		*result = fhc_get_node(dev);
+		break;
+	default:
+		return (ENOENT);
+	}
+	return (0);
+}
+
+static int
+zs_sbus_read_ivar(device_t dev, device_t child, int which, uintptr_t *result)
+{
+
+	switch (which) {
+	case ZS_IVAR_NODE:
+		*result = sbus_get_node(dev);
+		break;
+	default:
+		return (ENOENT);
+	}
+	return (0);
+}
+
 static int
 zstty_sbus_probe(device_t dev)
 {
@@ -241,7 +345,6 @@ zstty_set_speed(struct zstty_softc *sc, int ospeed)
 int
 zstty_console(device_t dev, char *mode, int len)
 {
-	device_t parent;
 	phandle_t chosen;
 	phandle_t options;
 	ihandle_t stdin;
@@ -250,7 +353,6 @@ zstty_console(device_t dev, char *mode, int len)
 	char input[32];
 	char name[32];
 
-	parent = device_get_parent(dev);
 	chosen = OF_finddevice("/chosen");
 	options = OF_finddevice("/options");
 	if (OF_getprop(chosen, "stdin", &stdin, sizeof(stdin)) == -1 ||
@@ -258,8 +360,8 @@ zstty_console(device_t dev, char *mode, int len)
 	    OF_getprop(options, "input-device", input, sizeof(input)) == -1 ||
 	    OF_getprop(options, "output-device", output, sizeof(output)) == -1)
 		return (0);
-	if (sbus_get_node(parent) != OF_instance_to_package(stdin) ||
-	    sbus_get_node(parent) != OF_instance_to_package(stdout))
+	if (zs_get_node(dev) != OF_instance_to_package(stdin) ||
+	    zs_get_node(dev) != OF_instance_to_package(stdout))
 		return (0);
 	if ((strcmp(input, device_get_desc(dev)) == 0 &&
 	     strcmp(output, device_get_desc(dev)) == 0) ||
@@ -277,8 +379,6 @@ zstty_console(device_t dev, char *mode, int len)
 static int
 zstty_keyboard(device_t dev)
 {
-	device_t parent;
 
-	parent = device_get_parent(dev);
-	return (OF_getproplen(sbus_get_node(parent), "keyboard") == 0);
+	return (OF_getproplen(zs_get_node(dev), "keyboard") == 0);
 }