Add device tree support for Altera/Intel Cyclone V

Close #3290.

2 files changed, 266 insertions, 0 deletions

diff --git a/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c b/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c
new file mode 100644
index 00000000..d08d233c
--- /dev/null
+++ b/freebsd/sys/dev/usb/controller/dwc_otg_fdt.c
@@ -0,0 +1,226 @@
+#include <machine/rtems-bsd-kernel-space.h>
+
+/*-
+ * Copyright (c) 2012 Hans Petter Selasky. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/bus.h>
+#include <sys/condvar.h>
+#include <sys/kernel.h>
+#include <sys/lock.h>
+#include <sys/malloc.h>
+#include <sys/module.h>
+#include <sys/mutex.h>
+#include <sys/rman.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <dev/usb/usb.h>
+#include <dev/usb/usbdi.h>
+
+#include <dev/usb/usb_core.h>
+#include <dev/usb/usb_busdma.h>
+#include <dev/usb/usb_process.h>
+#include <dev/usb/usb_util.h>
+
+#include <dev/usb/usb_controller.h>
+#include <dev/usb/usb_bus.h>
+
+#include <dev/usb/controller/dwc_otg.h>
+#include <dev/usb/controller/dwc_otg_fdt.h>
+
+static device_probe_t dwc_otg_probe;
+
+static struct ofw_compat_data compat_data[] = {
+	{ "synopsys,designware-hs-otg2",	1 },
+	{ "snps,dwc2",				1 },
+	{ NULL,					0 }
+};
+
+static int
+dwc_otg_probe(device_t dev)
+{
+
+	if (!ofw_bus_status_okay(dev))
+		return (ENXIO);
+
+	if (!ofw_bus_search_compatible(dev, compat_data)->ocd_data)
+		return (ENXIO);
+
+	device_set_desc(dev, "DWC OTG 2.0 integrated USB controller");
+
+	return (BUS_PROBE_DEFAULT);
+}
+
+int
+dwc_otg_attach(device_t dev)
+{
+	struct dwc_otg_fdt_softc *sc = device_get_softc(dev);
+	char usb_mode[24];
+	int err;
+	int rid;
+
+	/* initialise some bus fields */
+	sc->sc_otg.sc_bus.parent = dev;
+	sc->sc_otg.sc_bus.devices = sc->sc_otg.sc_devices;
+	sc->sc_otg.sc_bus.devices_max = DWC_OTG_MAX_DEVICES;
+	sc->sc_otg.sc_bus.dma_bits = 32;
+
+	/* get USB mode, if any */
+	if (OF_getprop(ofw_bus_get_node(dev), "dr_mode",
+	    &usb_mode, sizeof(usb_mode)) > 0) {
+
+		/* ensure proper zero termination */
+		usb_mode[sizeof(usb_mode) - 1] = 0;
+
+		if (strcasecmp(usb_mode, "host") == 0)
+			sc->sc_otg.sc_mode = DWC_MODE_HOST;
+		else if (strcasecmp(usb_mode, "peripheral") == 0)
+			sc->sc_otg.sc_mode = DWC_MODE_DEVICE;
+		else if (strcasecmp(usb_mode, "otg") != 0) {
+			device_printf(dev, "Invalid FDT dr_mode: %s\n",
+			    usb_mode);
+		}
+	}
+
+	/* get all DMA memory */
+	if (usb_bus_mem_alloc_all(&sc->sc_otg.sc_bus,
+	    USB_GET_DMA_TAG(dev), NULL)) {
+		return (ENOMEM);
+	}
+	rid = 0;
+	sc->sc_otg.sc_io_res =
+	    bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, RF_ACTIVE);
+
+	if (!(sc->sc_otg.sc_io_res)) {
+		err = ENOMEM;
+		goto error;
+	}
+	sc->sc_otg.sc_io_tag = rman_get_bustag(sc->sc_otg.sc_io_res);
+	sc->sc_otg.sc_io_hdl = rman_get_bushandle(sc->sc_otg.sc_io_res);
+	sc->sc_otg.sc_io_size = rman_get_size(sc->sc_otg.sc_io_res);
+
+
+	/*
+	 * brcm,bcm2708-usb FDT provides two interrupts,
+	 * we need only second one (VC_USB)
+	 */
+	rid = ofw_bus_is_compatible(dev, "brcm,bcm2708-usb") ? 1 : 0;
+	sc->sc_otg.sc_irq_res =
+	    bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, RF_ACTIVE);
+	if (sc->sc_otg.sc_irq_res == NULL)
+		goto error;
+
+	sc->sc_otg.sc_bus.bdev = device_add_child(dev, "usbus", -1);
+	if (sc->sc_otg.sc_bus.bdev == NULL)
+		goto error;
+
+	device_set_ivars(sc->sc_otg.sc_bus.bdev, &sc->sc_otg.sc_bus);
+
+	err = bus_setup_intr(dev, sc->sc_otg.sc_irq_res, INTR_TYPE_TTY | INTR_MPSAFE,
+	    &dwc_otg_filter_interrupt, &dwc_otg_interrupt, sc, &sc->sc_otg.sc_intr_hdl);
+	if (err) {
+		sc->sc_otg.sc_intr_hdl = NULL;
+		goto error;
+	}
+	err = dwc_otg_init(&sc->sc_otg);
+	if (err == 0) {
+		err = device_probe_and_attach(sc->sc_otg.sc_bus.bdev);
+	}
+	if (err)
+		goto error;
+
+
+	return (0);
+
+error:
+	dwc_otg_detach(dev);
+	return (ENXIO);
+}
+
+int
+dwc_otg_detach(device_t dev)
+{
+	struct dwc_otg_fdt_softc *sc = device_get_softc(dev);
+	int err;
+
+	/* during module unload there are lots of children leftover */
+	device_delete_children(dev);
+
+	if (sc->sc_otg.sc_irq_res && sc->sc_otg.sc_intr_hdl) {
+		/*
+		 * only call dwc_otg_uninit() after dwc_otg_init()
+		 */
+		dwc_otg_uninit(&sc->sc_otg);
+
+		err = bus_teardown_intr(dev, sc->sc_otg.sc_irq_res,
+		    sc->sc_otg.sc_intr_hdl);
+		sc->sc_otg.sc_intr_hdl = NULL;
+	}
+	/* free IRQ channel, if any */
+	if (sc->sc_otg.sc_irq_res) {
+		bus_release_resource(dev, SYS_RES_IRQ, 0,
+		    sc->sc_otg.sc_irq_res);
+		sc->sc_otg.sc_irq_res = NULL;
+	}
+	/* free memory resource, if any */
+	if (sc->sc_otg.sc_io_res) {
+		bus_release_resource(dev, SYS_RES_MEMORY, 0,
+		    sc->sc_otg.sc_io_res);
+		sc->sc_otg.sc_io_res = NULL;
+	}
+	usb_bus_mem_free_all(&sc->sc_otg.sc_bus, NULL);
+
+	return (0);
+}
+
+static device_method_t dwc_otg_methods[] = {
+	/* Device interface */
+	DEVMETHOD(device_probe, dwc_otg_probe),
+	DEVMETHOD(device_attach, dwc_otg_attach),
+	DEVMETHOD(device_detach, dwc_otg_detach),
+	DEVMETHOD(device_suspend, bus_generic_suspend),
+	DEVMETHOD(device_resume, bus_generic_resume),
+	DEVMETHOD(device_shutdown, bus_generic_shutdown),
+
+	DEVMETHOD_END
+};
+
+driver_t dwc_otg_driver = {
+	.name = "dwcotg",
+	.methods = dwc_otg_methods,
+	.size = sizeof(struct dwc_otg_fdt_softc),
+};
+
+static devclass_t dwc_otg_devclass;
+
+DRIVER_MODULE(dwcotg, simplebus, dwc_otg_driver, dwc_otg_devclass, 0, 0);
+MODULE_DEPEND(dwcotg, usb, 1, 1, 1);
diff --git a/freebsd/sys/dev/usb/controller/dwc_otg_fdt.h b/freebsd/sys/dev/usb/controller/dwc_otg_fdt.h
new file mode 100644
index 00000000..634b7960
--- /dev/null
+++ b/freebsd/sys/dev/usb/controller/dwc_otg_fdt.h
@@ -0,0 +1,40 @@
+/*-
+ * Copyright (c) 2012 Hans Petter Selasky. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef _DWC_OTG_FDT_H_
+#define	_DWC_OTG_FDT_H_
+
+struct dwc_otg_fdt_softc {
+	struct dwc_otg_softc sc_otg;	/* must be first */
+};
+
+extern driver_t dwc_otg_driver;
+
+device_attach_t dwc_otg_attach;
+device_attach_t dwc_otg_detach;
+
+#endif