freebsd-dev/sys/arm/xilinx/zy7_machdep.c
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101 lines
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C

/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2013 Thomas Skibo
* 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.
*/
/*
* Machine dependent code for Xilinx Zynq-7000 Soc.
*
* Reference: Zynq-7000 All Programmable SoC Technical Reference Manual.
* (v1.4) November 16, 2012. Xilinx doc UG585.
*/
#include "opt_platform.h"
#include <sys/cdefs.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/devmap.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <machine/bus.h>
#include <machine/machdep.h>
#include <machine/platform.h>
#include <machine/platformvar.h>
#include <arm/xilinx/zy7_machdep.h>
#include <arm/xilinx/zy7_reg.h>
#include "platform_if.h"
#include "platform_pl310_if.h"
void (*zynq7_cpu_reset)(void);
/*
* Set up static device mappings. Not strictly necessary -- simplebus will
* dynamically establish mappings as needed -- but doing it this way gets us
* nice efficient 1MB section mappings.
*/
static int
zynq7_devmap_init(platform_t plat)
{
devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE);
devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE);
return (0);
}
static void
zynq7_do_cpu_reset(platform_t plat)
{
if (zynq7_cpu_reset != NULL)
(*zynq7_cpu_reset)();
printf("cpu_reset: no platform cpu_reset. hanging.\n");
for (;;)
;
}
static platform_method_t zynq7_methods[] = {
PLATFORMMETHOD(platform_devmap_init, zynq7_devmap_init),
PLATFORMMETHOD(platform_cpu_reset, zynq7_do_cpu_reset),
#ifdef SMP
PLATFORMMETHOD(platform_mp_setmaxid, zynq7_mp_setmaxid),
PLATFORMMETHOD(platform_mp_start_ap, zynq7_mp_start_ap),
#endif
PLATFORMMETHOD(platform_pl310_init, zynq7_pl310_init),
PLATFORMMETHOD_END,
};
FDT_PLATFORM_DEF(zynq7, "zynq7", 0, "xlnx,zynq-7000", 200);