FreeBSD/Linux Kernel Cross Reference
sys/arm/versatile/versatile_machdep.c

     /*-
      * SPDX-License-Identifier: BSD-4-Clause
      *
      * Copyright (c) 2012 Oleksandr Tymoshenko.
      * All rights reserved.
      *
      * This code is derived from software written for Brini by Mark Brinicombe
      *
      * 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.
     * 3. All advertising materials mentioning features or use of this software
     *    must display the following acknowledgement:
     *      This product includes software developed by Brini.
     * 4. The name of the company nor the name of the author may be used to
     *    endorse or promote products derived from this software without specific
     *    prior written permission.
     *
     * THIS SOFTWARE IS PROVIDED BY BRINI ``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 BRINI 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_ddb.h"
    #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 <vm/pmap.h>
    
    #include <machine/bus.h>
    #include <machine/machdep.h>
    #include <machine/platform.h>
    #include <machine/platformvar.h>
    
    #include "platform_if.h"
    
    /* Start of address space used for bootstrap map */
    #define DEVMAP_BOOTSTRAP_MAP_START      0xE0000000
    
    static vm_offset_t
    versatile_lastaddr(platform_t plat)
    {
    
            return (DEVMAP_BOOTSTRAP_MAP_START);
    }
    
    #define FDT_DEVMAP_MAX  (2)             /* FIXME */
    static struct devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = {
            { 0, 0, 0, },
            { 0, 0, 0, }
    };
    
    
    /*
     * Construct devmap table with DT-derived config data.
     */
    static int
    versatile_devmap_init(platform_t plat)
    {
            int i = 0;
            fdt_devmap[i].pd_va = 0xf0100000;
            fdt_devmap[i].pd_pa = 0x10100000;
            fdt_devmap[i].pd_size = 0x01000000;       /* 1 MB */
    
            devmap_register_table(&fdt_devmap[0]);
            return (0);
    }
    
    static void
    versatile_cpu_reset(platform_t plat)
    {
            printf("cpu_reset\n");
            while (1);
    }
    
    static platform_method_t versatile_methods[] = {
            PLATFORMMETHOD(platform_lastaddr,       versatile_lastaddr),
           PLATFORMMETHOD(platform_devmap_init,    versatile_devmap_init),
           PLATFORMMETHOD(platform_cpu_reset,      versatile_cpu_reset),
   
           PLATFORMMETHOD_END,
   };
   FDT_PLATFORM_DEF(versatile, "versatile", 0, "arm,versatile-pb", 1);

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