1 files changed, 84 insertions, 0 deletions
diff --git a/sys/arm/arm/platform_pl310_if.m b/sys/arm/arm/platform_pl310_if.m
new file mode 100644
index 000000000000..e032bebbf8aa
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+++ b/sys/arm/arm/platform_pl310_if.m
@@ -0,0 +1,84 @@
+#-
+# Copyright (c) 2017 Andrew Turner
+# 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.
+#
+# $FreeBSD$
+#
+
+#include <sys/bus.h>
+#include <sys/lock.h>
+#include <sys/mutex.h>
+#include <sys/rman.h>
+
+#include <machine/bus.h>
+#include <machine/pl310.h>
+#include <machine/platformvar.h>
+
+INTERFACE platform_pl310;
+
+HEADER {
+	struct pl310_softc;
+};
+
+CODE {
+	static void platform_pl310_default_write_ctrl(platform_t plat,
+	    struct pl310_softc *sc, uint32_t val)
+	{
+		pl310_write4(sc, PL310_CTRL, val);
+	}
+
+	static void platform_pl310_default_write_debug(platform_t plat,
+	    struct pl310_softc *sc, uint32_t val)
+	{
+		pl310_write4(sc, PL310_DEBUG_CTRL, val);
+	}
+};
+
+/**
+ * Initialize the pl310, e.g. to configure the prefetch control. The following
+ * write functions may have already been called so they must not rely on
+ * this function.
+ */
+METHOD void init {
+	platform_t	_plat;
+	struct pl310_softc *sc;
+};
+
+/**
+ * Write to the Control Register.
+ */
+METHOD void write_ctrl {
+	platform_t	_plat;
+	struct pl310_softc *sc;
+	uint32_t	val;
+} DEFAULT platform_pl310_default_write_ctrl;
+
+/**
+ * Write to the Debug Control Register.
+ */
+METHOD void write_debug {
+	platform_t	_plat;
+	struct pl310_softc *sc;
+	uint32_t	val;
+} DEFAULT platform_pl310_default_write_debug;