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freebsd
GitHub Repository: freebsd/freebsd-src
 Path: blob/main/sys/arm/xilinx/zy7_machdep.c
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/*-

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

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 *

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 * Copyright (c) 2013 Thomas Skibo

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 * All rights reserved.

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 *

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 * Redistribution and use in source and binary forms, with or without

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 * modification, are permitted provided that the following conditions

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 * are met:

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 * 1. Redistributions of source code must retain the above copyright

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 *    notice, this list of conditions and the following disclaimer.

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 * 2. Redistributions in binary form must reproduce the above copyright

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 *    notice, this list of conditions and the following disclaimer in the

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 *    documentation and/or other materials provided with the distribution.

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 *

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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND

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 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE

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 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE

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 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE

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 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL

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 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

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 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

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 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT

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 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY

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 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF

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 * SUCH DAMAGE.

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 */

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/*

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 * Machine dependent code for Xilinx Zynq-7000 Soc.

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 *

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 * Reference: Zynq-7000 All Programmable SoC Technical Reference Manual.

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 * (v1.4) November 16, 2012.  Xilinx doc UG585.

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 */

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#include "opt_platform.h"

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#include <sys/param.h>

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#include <sys/systm.h>

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#include <sys/bus.h>

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#include <sys/devmap.h>

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#include <vm/vm.h>

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#include <vm/pmap.h>

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#include <machine/bus.h>

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#include <machine/machdep.h>

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#include <machine/platform.h> 

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#include <machine/platformvar.h>

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#include <arm/xilinx/zy7_machdep.h>

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#include <arm/xilinx/zy7_reg.h>

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#include "platform_if.h"

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#include "platform_pl310_if.h"

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void (*zynq7_cpu_reset)(void);

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/*

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 * Set up static device mappings.  Not strictly necessary -- simplebus will

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 * dynamically establish mappings as needed -- but doing it this way gets us

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 * nice efficient 1MB section mappings.

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 */

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static int

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zynq7_devmap_init(platform_t plat)

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{

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	devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE);

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	devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE);

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	return (0);

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}

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static void

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zynq7_do_cpu_reset(platform_t plat)

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{

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	if (zynq7_cpu_reset != NULL)

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		(*zynq7_cpu_reset)();

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	printf("cpu_reset: no platform cpu_reset.  hanging.\n");

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	for (;;)

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		;

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}

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static platform_method_t zynq7_methods[] = {

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	PLATFORMMETHOD(platform_devmap_init,	zynq7_devmap_init),

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	PLATFORMMETHOD(platform_cpu_reset,	zynq7_do_cpu_reset),

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#ifdef SMP

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	PLATFORMMETHOD(platform_mp_setmaxid,	zynq7_mp_setmaxid),

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	PLATFORMMETHOD(platform_mp_start_ap,	zynq7_mp_start_ap),

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#endif

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	PLATFORMMETHOD(platform_pl310_init,	zynq7_pl310_init),

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	PLATFORMMETHOD_END,

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};

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FDT_PLATFORM_DEF(zynq7, "zynq7", 0, "xlnx,zynq-7000", 200);

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