Add glue for the USB3 controller on the HiKey 970.

4 files changed, 101 insertions, 3 deletions

diff --git a/sys/arch/arm64/conf/GENERIC b/sys/arch/arm64/conf/GENERIC
index b84499d29d2..289dffddc38 100644
--- a/sys/arch/arm64/conf/GENERIC
+++ b/sys/arch/arm64/conf/GENERIC
@@ -1,4 +1,4 @@
-# $OpenBSD: GENERIC,v 1.86 2018/08/27 10:03:26 kettenis Exp $
+# $OpenBSD: GENERIC,v 1.87 2018/08/27 13:56:11 kettenis Exp $
 #
 # GENERIC machine description file
 #
@@ -132,6 +132,9 @@ bcmtemp*	at fdt?
 dwctwo*		at fdt?
 usb*		at dwctwo?
 
+# HiSilicon SoCs
+hidwusb*	at fdt?
+
 # Marvell SoCs
 mvclock*	at fdt? early 1
 mvicu*		at fdt? early 1
diff --git a/sys/arch/arm64/conf/RAMDISK b/sys/arch/arm64/conf/RAMDISK
index f018b43fee9..e0d2c4f64bc 100644
--- a/sys/arch/arm64/conf/RAMDISK
+++ b/sys/arch/arm64/conf/RAMDISK
@@ -1,4 +1,4 @@
-# $OpenBSD: RAMDISK,v 1.69 2018/08/26 19:50:08 kettenis Exp $
+# $OpenBSD: RAMDISK,v 1.70 2018/08/27 13:56:11 kettenis Exp $
 #
 # GENERIC machine description file
 #
@@ -128,6 +128,9 @@ bcmrng*		at fdt?
 dwctwo*		at fdt?
 usb*		at dwctwo?
 
+# HiSilicon SoCs
+hidwusb*	at fdt?
+
 # Marvell SoCs
 mvclock*	at fdt? early 1
 mvicu*		at fdt? early 1
diff --git a/sys/dev/fdt/files.fdt b/sys/dev/fdt/files.fdt
index 985d86bf2f7..66d67870b46 100644
--- a/sys/dev/fdt/files.fdt
+++ b/sys/dev/fdt/files.fdt
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.fdt,v 1.70 2018/08/26 19:50:08 kettenis Exp $
+#	$OpenBSD: files.fdt,v 1.71 2018/08/27 13:56:11 kettenis Exp $
 #
 # Config file and device description for machine-independent FDT code.
 # Included by ports that need it.
@@ -119,6 +119,10 @@ device	syscon: fdt
 attach	syscon at fdt
 file	dev/fdt/syscon.c		syscon
 
+device	hidwusb: fdt
+attach	hidwusb at fdt
+file	dev/fdt/hidwusb.c		hidwusb
+
 device	rkclock
 attach	rkclock at fdt
 file	dev/fdt/rkclock.c		rkclock
diff --git a/sys/dev/fdt/hidwusb.c b/sys/dev/fdt/hidwusb.c
new file mode 100644
index 00000000000..fbdbbea4dbe
--- /dev/null
+++ b/sys/dev/fdt/hidwusb.c
@@ -0,0 +1,88 @@
+/*	$OpenBSD: hidwusb.c,v 1.1 2018/08/27 13:56:11 kettenis Exp $	*/
+/*
+ * Copyright (c) 2017, 2018 Mark kettenis <kettenis@openbsd.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+
+#include <machine/bus.h>
+#include <machine/fdt.h>
+
+#include <arm64/dev/simplebusvar.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_clock.h>
+#include <dev/ofw/ofw_gpio.h>
+#include <dev/ofw/fdt.h>
+
+/*
+ * This driver is based on preliminary device tree bindings and will
+ * almost certainly need changes once the official bindings land in
+ * mainline Linux.  Support for these preliminary bindings will be
+ * dropped as soon as official bindings are available.
+ */
+
+struct hidwusb_softc {
+	struct simplebus_softc	sc_sbus;
+};
+
+int	hidwusb_match(struct device *, void *, void *);
+void	hidwusb_attach(struct device *, struct device *, void *);
+
+struct cfattach hidwusb_ca = {
+	sizeof(struct hidwusb_softc), hidwusb_match, hidwusb_attach
+};
+
+struct cfdriver hidwusb_cd = {
+	NULL, "hidwusb", DV_DULL
+};
+
+int
+hidwusb_match(struct device *parent, void *match, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+
+	return OF_is_compatible(faa->fa_node, "hisilicon,kirin970-dwc3");
+}
+
+void
+hidwusb_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct hidwusb_softc *sc = (struct hidwusb_softc *)self;
+	struct fdt_attach_args *faa = aux;
+	uint32_t gpio[3];
+	int node;
+
+	/*
+	 * The HiKey970 has a switch to select between the Type-C and
+	 * a hub with Type-A connectors.  Switch to the USB Type-C
+	 * connector as we can't power up the hub yet.
+	 */
+	node = OF_finddevice("/soc/hikey_usbhub");
+	if (node) {
+		if (OF_getpropintarray(node, "typc_vbus_int_gpio,typec-gpios",
+		    gpio, sizeof(gpio)) == sizeof(gpio)) {
+			gpio_controller_config_pin(gpio, GPIO_CONFIG_OUTPUT);
+			gpio_controller_set_pin(gpio, 1);
+		}
+	}
+
+	clock_enable_all(faa->fa_node);
+	reset_deassert_all(faa->fa_node);
+
+	simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa);
+}