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diff --git a/freebsd/sys/arm/freescale/imx/imx_machdep.h b/freebsd/sys/arm/freescale/imx/imx_machdep.h
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+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2013 Ian Lepore <ian@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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef IMX_MACHDEP_H
+#define IMX_MACHDEP_H
+
+#include <sys/types.h>
+#include <sys/sysctl.h>
+
+SYSCTL_DECL(_hw_imx);
+
+/* Common functions, implemented in imx_machdep.c. */
+
+void imx_wdog_cpu_reset(vm_offset_t _wdcr_phys) __attribute__((__noreturn__));
+void imx_wdog_init_last_reset(vm_offset_t _wdsr_phys);
+
+/* From here down, routines are implemented in imxNN_machdep.c. */
+
+/*
+ * SoC identity.
+ * According to the documentation, there is such a thing as an i.MX6 Dual
+ * (non-lite flavor). However, Freescale doesn't seem to have assigned it a
+ * number in their code for determining the SoC type in u-boot.
+ *
+ * To-do: put silicon revision numbers into the low-order bits somewhere.
+ */
+#define IMXSOC_51 0x51000000
+#define IMXSOC_53 0x53000000
+#define IMXSOC_6SL 0x60000000
+#define IMXSOC_6DL 0x61000000
+#define IMXSOC_6S 0x62000000
+#define IMXSOC_6Q 0x63000000
+#define IMXSOC_6UL 0x64000000
+#define IMXSOC_FAMSHIFT 28
+
+u_int imx_soc_type(void);
+
+static inline u_int
+imx_soc_family(void)
+{
+ return (imx_soc_type() >> IMXSOC_FAMSHIFT);
+}
+
+#endif
+