svn commit: r288050 - head/sys/arm/allwinner/a20
Luiz Otavio O Souza
loos at FreeBSD.org
Mon Sep 21 01:51:39 UTC 2015
Author: loos
Date: Mon Sep 21 01:51:37 2015
New Revision: 288050
URL: https://svnweb.freebsd.org/changeset/base/288050
Log:
Add the A20 glue code for if_dwc.
This code initializes the GMAC clock and sets the pin mux to rgmii.
It also override the if_dwc defaults to set the alternate descriptor type
and MII clock used on A20.
Tested on cubieboard2 and banana pi.
Added:
head/sys/arm/allwinner/a20/a20_if_dwc.c (contents, props changed)
Modified:
head/sys/arm/allwinner/a20/files.a20
Added: head/sys/arm/allwinner/a20/a20_if_dwc.c
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/sys/arm/allwinner/a20/a20_if_dwc.c Mon Sep 21 01:51:37 2015 (r288050)
@@ -0,0 +1,107 @@
+/*-
+ * Copyright (c) 2015 Luiz Otavio O Souza <loos at FreeBSD.org>
+ * 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/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 <arm/allwinner/a10_clk.h>
+#include <arm/allwinner/a10_gpio.h>
+
+#include "if_dwc_if.h"
+
+static int
+a20_if_dwc_probe(device_t dev)
+{
+
+ if (!ofw_bus_status_okay(dev))
+ return (ENXIO);
+ if (!ofw_bus_is_compatible(dev, "allwinner,sun7i-a20-gmac"))
+ return (ENXIO);
+ device_set_desc(dev, "A20 Gigabit Ethernet Controller");
+
+ return (BUS_PROBE_DEFAULT);
+}
+
+static int
+a20_if_dwc_init(device_t dev)
+{
+
+ /* Activate GMAC clock and set the pin mux to rgmii. */
+ if (a10_clk_gmac_activate(ofw_bus_get_node(dev)) != 0 ||
+ a10_gpio_ethernet_activate(A10_GPIO_FUNC_RGMII)) {
+ device_printf(dev, "could not activate gmac module\n");
+ return (ENXIO);
+ }
+
+ return (0);
+}
+
+static int
+a20_if_dwc_mac_type(device_t dev)
+{
+
+ return (DWC_GMAC_ALT_DESC);
+}
+
+static int
+a20_if_dwc_mii_clk(device_t dev)
+{
+
+ return (GMAC_MII_CLK_150_250M_DIV102);
+}
+
+static device_method_t a20_dwc_methods[] = {
+ DEVMETHOD(device_probe, a20_if_dwc_probe),
+
+ DEVMETHOD(if_dwc_init, a20_if_dwc_init),
+ DEVMETHOD(if_dwc_mac_type, a20_if_dwc_mac_type),
+ DEVMETHOD(if_dwc_mii_clk, a20_if_dwc_mii_clk),
+
+ DEVMETHOD_END
+};
+
+static devclass_t a20_dwc_devclass;
+
+extern driver_t dwc_driver;
+
+DEFINE_CLASS_1(dwc, a20_dwc_driver, a20_dwc_methods, sizeof(struct dwc_softc),
+ dwc_driver);
+DRIVER_MODULE(a20_dwc, simplebus, a20_dwc_driver, a20_dwc_devclass, 0, 0);
+
+MODULE_DEPEND(a20_dwc, dwc, 1, 1, 1);
Modified: head/sys/arm/allwinner/a20/files.a20
==============================================================================
--- head/sys/arm/allwinner/a20/files.a20 Sun Sep 20 22:52:40 2015 (r288049)
+++ head/sys/arm/allwinner/a20/files.a20 Mon Sep 21 01:51:37 2015 (r288050)
@@ -1,3 +1,4 @@
# $FreeBSD$
arm/allwinner/a20/a20_mp.c optional smp
+arm/allwinner/a20/a20_if_dwc.c optional dwc
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