vf_machdep.c

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2013 Ruslan Bukin <br@bsdpad.com>
    5  * All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  *
   16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   26  * SUCH DAMAGE.
   27  */
   28 
   29 #include "opt_platform.h"
   30 
   31 #include <sys/cdefs.h>
   32 __FBSDID("$FreeBSD$");
   33 
   34 #include <sys/param.h>
   35 #include <sys/systm.h>
   36 #include <sys/devmap.h>
   37 
   38 #include <vm/vm.h>
   39 
   40 #include <dev/ofw/openfirm.h>
   41 
   42 #include <machine/bus.h>
   43 #include <machine/fdt.h>
   44 #include <machine/platform.h> 
   45 #include <machine/platformvar.h>
   46 
   47 #include <arm/freescale/vybrid/vf_src.h>
   48 
   49 #include "platform_if.h"
   50 
   51 static int
   52 vf_devmap_init(platform_t plat)
   53 {
   54 
   55         devmap_add_entry(0x40000000, 0x100000);
   56 
   57         return (0);
   58 }
   59 
   60 static void
   61 vf_cpu_reset(platform_t plat)
   62 {
   63         phandle_t src;
   64         uint32_t paddr;
   65         bus_addr_t vaddr;
   66 
   67         if (src_swreset() == 0)
   68                 goto end;
   69 
   70         src = OF_finddevice("src");
   71         if ((src != -1) && (OF_getencprop(src, "reg", &paddr, sizeof(paddr))) > 0) {
   72                 if (bus_space_map(fdtbus_bs_tag, paddr, 0x10, 0, &vaddr) == 0) {
   73                         bus_space_write_4(fdtbus_bs_tag, vaddr, 0x00, SW_RST);
   74                 }
   75         }
   76 
   77 end:
   78         while (1);
   79 }
   80 
   81 static platform_method_t vf_methods[] = {
   82         PLATFORMMETHOD(platform_devmap_init,    vf_devmap_init),
   83         PLATFORMMETHOD(platform_cpu_reset,      vf_cpu_reset),
   84 
   85         PLATFORMMETHOD_END,
   86 };
   87 
   88 FDT_PLATFORM_DEF(vf, "vybrid", 0, "freescale,vybrid", 200);

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FreeBSD/Linux Kernel Cross Reference sys/arm/freescale/vybrid/vf_machdep.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/freescale/vybrid/vf_machdep.c