freebsd-dev/sys/arm/samsung/exynos/exynos5_machdep.c

/*-
 * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
 * 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 <sys/systm.h>
#include <sys/bus.h>
#include <sys/devmap.h>

#include <vm/vm.h>

#include <dev/ofw/openfirm.h>

#include <machine/armreg.h>
#include <machine/bus.h>
#include <machine/fdt.h>
#include <machine/machdep.h>
#include <machine/platform.h> 
#include <machine/platformvar.h>

#include <arm/samsung/exynos/exynos5_mp.h>

#include "platform_if.h"

static platform_devmap_init_t exynos5_devmap_init;
static platform_cpu_reset_t exynos5_cpu_reset;

static int
exynos5_devmap_init(platform_t plat)
{

	/* CHIP ID */
	devmap_add_entry(0x10000000, 0x100000);

	/* UART */
	devmap_add_entry(0x12C00000, 0x100000);

	/* DWMMC */
	devmap_add_entry(0x12200000, 0x100000);

	return (0);
}

static void
exynos5_cpu_reset(platform_t plat)
{
	bus_space_handle_t bsh;

	bus_space_map(fdtbus_bs_tag, 0x10040400, 0x1000, 0, &bsh);
	bus_space_write_4(fdtbus_bs_tag, bsh, 0, 1);

	while (1);
}

static platform_method_t exynos5_methods[] = {
	PLATFORMMETHOD(platform_devmap_init,	exynos5_devmap_init),
	PLATFORMMETHOD(platform_cpu_reset,	exynos5_cpu_reset),

#ifdef SMP
	PLATFORMMETHOD(platform_mp_start_ap,	exynos5_mp_start_ap),
	PLATFORMMETHOD(platform_mp_setmaxid,	exynos5_mp_setmaxid),
#endif

	PLATFORMMETHOD_END,
};

FDT_PLATFORM_DEF(exynos5, "exynos5", 0, "samsung,exynos5", 0);