Add glue for the USB3 controller on the i.MX8MQ SoC.

Discussed with kettenis@

2 files changed, 70 insertions, 1 deletions

diff --git a/sys/dev/fdt/files.fdt b/sys/dev/fdt/files.fdt
index 995c17ca45a..4a1d9a472ed 100644
--- a/sys/dev/fdt/files.fdt
+++ b/sys/dev/fdt/files.fdt
@@ -1,4 +1,4 @@
-#	$OpenBSD: files.fdt,v 1.59 2018/05/02 15:17:30 patrick Exp $
+#	$OpenBSD: files.fdt,v 1.60 2018/05/16 13:21:50 patrick Exp $
 #
 # Config file and device description for machine-independent FDT code.
 # Included by ports that need it.
@@ -202,6 +202,10 @@ device	imxccm
 attach	imxccm at fdt
 file	dev/fdt/imxccm.c		imxccm
 
+device	imxdwusb: fdt
+attach	imxdwusb at fdt
+file	dev/fdt/imxdwusb.c		imxdwusb
+
 device	imxesdhc: sdmmcbus
 attach	imxesdhc at fdt
 file	dev/fdt/imxesdhc.c		imxesdhc
diff --git a/sys/dev/fdt/imxdwusb.c b/sys/dev/fdt/imxdwusb.c
new file mode 100644
index 00000000000..dc8760f0490
--- /dev/null
+++ b/sys/dev/fdt/imxdwusb.c
@@ -0,0 +1,65 @@
+/*	$OpenBSD: imxdwusb.c,v 1.1 2018/05/16 13:21:50 patrick Exp $	*/
+/*
+ * Copyright (c) 2018 Patrick Wildt <patrick@blueri.se>
+ *
+ * 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/fdt.h>
+
+struct imxdwusb_softc {
+	struct simplebus_softc	 sc_sbus;
+};
+
+int	imxdwusb_match(struct device *, void *, void *);
+void	imxdwusb_attach(struct device *, struct device *, void *);
+
+struct cfattach imxdwusb_ca = {
+	sizeof(struct imxdwusb_softc), imxdwusb_match, imxdwusb_attach
+};
+
+struct cfdriver imxdwusb_cd = {
+	NULL, "imxdwusb", DV_DULL
+};
+
+int
+imxdwusb_match(struct device *parent, void *match, void *aux)
+{
+	struct fdt_attach_args *faa = aux;
+
+	return OF_is_compatible(faa->fa_node, "fsl,imx8mq-dwc3");
+}
+
+void
+imxdwusb_attach(struct device *parent, struct device *self, void *aux)
+{
+	struct imxdwusb_softc *sc = (struct imxdwusb_softc *)self;
+	struct fdt_attach_args *faa = aux;
+
+	clock_set_assigned(faa->fa_node);
+	clock_enable_all(faa->fa_node);
+	reset_deassert_all(faa->fa_node);
+
+	simplebus_attach(parent, &sc->sc_sbus.sc_dev, faa);
+}