a19c0b37e9
different methods to start the secondary cores in a kernel built for multiple SoCs, e.g. with the Allwinner A20 and A31. Sponsored by: ABT systems Ltd Differential Revision: https://reviews.freebsd.org/D5466
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*-
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* Copyright (c) 2015 Andrew Turner
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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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#include "opt_platform.h"
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#define _ARM32_BUS_DMA_PRIVATE
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <vm/vm.h>
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#include <machine/bus.h>
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#include <machine/devmap.h>
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#include <machine/platform.h>
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#include <machine/platformvar.h>
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#include <arm/qemu/virt_mp.h>
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#include "platform_if.h"
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struct arm32_dma_range *
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bus_dma_get_range(void)
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{
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return (NULL);
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}
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int
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bus_dma_get_range_nb(void)
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{
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return (0);
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}
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void
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cpu_reset(void)
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{
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while (1);
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}
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static vm_offset_t
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virt_lastaddr(platform_t plat)
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{
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return (arm_devmap_lastaddr());
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}
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/*
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* Set up static device mappings.
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*/
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static int
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virt_devmap_init(platform_t plat)
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{
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arm_devmap_add_entry(0x09000000, 0x100000); /* Uart */
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return (0);
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}
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static platform_method_t virt_methods[] = {
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PLATFORMMETHOD(platform_devmap_init, virt_devmap_init),
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PLATFORMMETHOD(platform_lastaddr, virt_lastaddr),
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#ifdef SMP
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PLATFORMMETHOD(platform_mp_start_ap, virt_mp_start_ap),
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PLATFORMMETHOD(platform_mp_setmaxid, virt_mp_setmaxid),
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#endif
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PLATFORMMETHOD_END,
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};
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FDT_PLATFORM_DEF(virt, "virt", 0, "linux,dummy-virt");
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