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-rw-r--r--sys/dev/dpaa/fman_fdt.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/sys/dev/dpaa/fman_fdt.c b/sys/dev/dpaa/fman_fdt.c
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+++ b/sys/dev/dpaa/fman_fdt.c
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+/*-
+ * Copyright (c) 2012 Semihalf.
+ * 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/kernel.h>
+#include <sys/bus.h>
+#include <sys/module.h>
+
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include <contrib/ncsw/inc/ncsw_ext.h>
+#include <contrib/ncsw/inc/enet_ext.h>
+
+#include "fman.h"
+
+#define FFMAN_DEVSTR "Freescale Frame Manager"
+
+static int fman_fdt_probe(device_t dev);
+
+static device_method_t fman_methods[] = {
+ /* Device interface */
+ DEVMETHOD(device_probe, fman_fdt_probe),
+ DEVMETHOD(device_attach, fman_attach),
+ DEVMETHOD(device_detach, fman_detach),
+
+ DEVMETHOD(device_shutdown, fman_shutdown),
+ DEVMETHOD(device_suspend, fman_suspend),
+ DEVMETHOD(device_resume, fman_resume),
+
+ { 0, 0 }
+};
+
+static driver_t fman_driver = {
+ "fman",
+ fman_methods,
+ sizeof(struct fman_softc),
+};
+
+static devclass_t fman_devclass;
+EARLY_DRIVER_MODULE(fman, simplebus, fman_driver, fman_devclass, 0, 0,
+ BUS_PASS_BUS + BUS_PASS_ORDER_MIDDLE);
+
+
+static int
+fman_fdt_probe(device_t dev)
+{
+
+ if (!ofw_bus_is_compatible(dev, "fsl,fman"))
+ return (ENXIO);
+
+ device_set_desc(dev, FFMAN_DEVSTR);
+
+ return (BUS_PROBE_DEFAULT);
+}
+
+uint32_t
+fman_get_clock(struct fman_softc *sc)
+{
+ device_t dev;
+ phandle_t node;
+ pcell_t fman_clock;
+
+ dev = sc->dev;
+ node = ofw_bus_get_node(dev);
+
+ if ((OF_getprop(node, "clock-frequency", &fman_clock,
+ sizeof(fman_clock)) <= 0) || (fman_clock == 0)) {
+ device_printf(dev, "could not acquire correct frequency "
+ "from DTS\n");
+
+ return (0);
+ }
+
+ return ((uint32_t)fman_clock);
+}
+
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