1 files changed, 113 insertions, 0 deletions

diff --git a/sys/dev/altera/dwc/if_dwc_socfpga.c b/sys/dev/altera/dwc/if_dwc_socfpga.c
new file mode 100644
index 000000000000..dce00a0901ad
--- /dev/null
+++ b/sys/dev/altera/dwc/if_dwc_socfpga.c
@@ -0,0 +1,113 @@
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause
+ *
+ * Copyright (c) 2019 Ruslan Bukin <br@bsdpad.com>
+ *
+ * This software was developed by SRI International and the University of
+ * Cambridge Computer Laboratory (Department of Computer Science and
+ * Technology) under DARPA contract HR0011-18-C-0016 ("ECATS"), as part of the
+ * DARPA SSITH research programme.
+ *
+ * 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/kernel.h>
+#include <sys/module.h>
+
+#include <machine/bus.h>
+
+#include <dev/dwc/if_dwc.h>
+#include <dev/dwc/if_dwcvar.h>
+#include <dev/ofw/ofw_bus.h>
+#include <dev/ofw/ofw_bus_subr.h>
+
+#include "if_dwc_if.h"
+
+static int
+if_dwc_socfpga_probe(device_t dev)
+{
+
+	if (!ofw_bus_status_okay(dev))
+		return (ENXIO);
+
+	if (!ofw_bus_is_compatible(dev, "altr,socfpga-stmmac"))
+		return (ENXIO);
+
+	device_set_desc(dev, "Altera SOCFPGA Ethernet MAC");
+
+	return (BUS_PROBE_DEFAULT);
+}
+
+static int
+if_dwc_socfpga_init(device_t dev)
+{
+
+	return (0);
+}
+
+static int
+if_dwc_socfpga_mac_type(device_t dev)
+{
+
+	return (DWC_GMAC);
+}
+
+static int
+if_dwc_socfpga_mii_clk(device_t dev)
+{
+	phandle_t root;
+
+	root = OF_finddevice("/");
+
+	if (ofw_bus_node_is_compatible(root, "altr,socfpga-stratix10"))
+		return (GMAC_MII_CLK_35_60M_DIV26);
+
+	/* Default value. */
+	return (GMAC_MII_CLK_25_35M_DIV16);
+}
+
+static device_method_t dwc_socfpga_methods[] = {
+	DEVMETHOD(device_probe,		if_dwc_socfpga_probe),
+
+	DEVMETHOD(if_dwc_init,		if_dwc_socfpga_init),
+	DEVMETHOD(if_dwc_mac_type,	if_dwc_socfpga_mac_type),
+	DEVMETHOD(if_dwc_mii_clk,	if_dwc_socfpga_mii_clk),
+
+	DEVMETHOD_END
+};
+
+static devclass_t dwc_socfpga_devclass;
+
+extern driver_t dwc_driver;
+
+DEFINE_CLASS_1(dwc, dwc_socfpga_driver, dwc_socfpga_methods,
+    sizeof(struct dwc_softc), dwc_driver);
+EARLY_DRIVER_MODULE(dwc_socfpga, simplebus, dwc_socfpga_driver,
+    dwc_socfpga_devclass, 0, 0, BUS_PASS_SUPPORTDEV + BUS_PASS_ORDER_MIDDLE);
+
+MODULE_DEPEND(dwc_socfpga, dwc, 1, 1, 1);