xref: /freebsd/sys/arm/freescale/imx/imx_machdep.h (revision 95ee2897e98f5d444f26ed2334cc7c439f9c16c6)

/*-
 * SPDX-License-Identifier: BSD-2-Clause
 *
 * 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.
 */

#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