Add the start of the ARM platform code. This is based on the PowerPC

platform code, it is expected these will be merged in the future when the
ARM code is more complete.

Until more boards can be tested only use this with the Raspberry Pi and
rrename the functions on the other SoCs.

Reviewed by:	ian@

1 files changed, 72 insertions, 0 deletions

diff --git a/sys/dev/fdt/fdt_arm_platform.c b/sys/dev/fdt/fdt_arm_platform.c
new file mode 100644
index 000000000000..22e935b146f3
--- /dev/null
+++ b/sys/dev/fdt/fdt_arm_platform.c
@@ -0,0 +1,72 @@
+/*-
+ * Copyright (c) 2013 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.
+ */
+
+#include "opt_platform.h"
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/param.h>
+
+#include <arm/include/platform.h>
+#include <arm/include/platformvar.h>
+
+#include <dev/ofw/openfirm.h>
+#include <dev/fdt/fdt_common.h>
+
+#include "platform_if.h"
+
+#define	FDT_PLATFORM(plat)	\
+    ((fdt_platform_def_t *)(plat)->cls->baseclasses[0])
+
+static int
+fdt_platform_probe(platform_t plat)
+{
+	const char *compat;
+	phandle_t root;
+
+	/*
+	 * TODO: Make these KASSERTs, we should only be here if we
+	 * are using the FDT platform magic.
+	 */
+	if (plat->cls == NULL || FDT_PLATFORM(plat) == NULL)
+		return 1;
+
+	/* Is the device is compatible? */
+	root = OF_finddevice("/");
+	compat = FDT_PLATFORM(plat)->fdt_compatible;
+	if (fdt_is_compatible(root, compat) != 0)
+		return 0;
+
+	/* Not compatible, return an error */
+	return 1;
+}
+
+platform_method_t fdt_platform_methods[] = {
+	PLATFORMMETHOD(platform_probe,	fdt_platform_probe),
+	PLATFORMMETHOD_END
+};
+