The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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

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    1 /*-
    2  * Copyright (c) 2012 Oleksandr Tymoshenko.
    3  * All rights reserved.
    4  *
    5  * This code is derived from software written for Brini by Mark Brinicombe
    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  * 3. All advertising materials mentioning features or use of this software
   16  *    must display the following acknowledgement:
   17  *      This product includes software developed by Brini.
   18  * 4. The name of the company nor the name of the author may be used to
   19  *    endorse or promote products derived from this software without specific
   20  *    prior written permission.
   21  *
   22  * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED
   23  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
   24  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
   25  * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
   26  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   27  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
   28  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   32  * SUCH DAMAGE.
   33  *
   34  */
   35 
   36 #include "opt_ddb.h"
   37 #include "opt_platform.h"
   38 #include "opt_global.h"
   39 
   40 #include <sys/cdefs.h>
   41 __FBSDID("$FreeBSD: stable/10/sys/arm/versatile/versatile_machdep.c 259365 2013-12-14 00:16:08Z ian $");
   42 
   43 #define _ARM32_BUS_DMA_PRIVATE
   44 #include <sys/param.h>
   45 #include <sys/systm.h>
   46 #include <sys/bus.h>
   47 
   48 #include <vm/vm.h>
   49 #include <vm/pmap.h>
   50 
   51 #include <machine/bus.h>
   52 #include <machine/devmap.h>
   53 #include <machine/machdep.h>
   54 
   55 #include <dev/fdt/fdt_common.h>
   56 
   57 /* Start of address space used for bootstrap map */
   58 #define DEVMAP_BOOTSTRAP_MAP_START      0xE0000000
   59 
   60 vm_offset_t
   61 initarm_lastaddr(void)
   62 {
   63 
   64         return (DEVMAP_BOOTSTRAP_MAP_START);
   65 }
   66 
   67 void
   68 initarm_early_init(void)
   69 {
   70 
   71 }
   72 
   73 void
   74 initarm_gpio_init(void)
   75 {
   76 }
   77 
   78 void
   79 initarm_late_init(void)
   80 {
   81 }
   82 
   83 #define FDT_DEVMAP_MAX  (2)             /* FIXME */
   84 static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_MAX] = {
   85         { 0, 0, 0, 0, 0, },
   86         { 0, 0, 0, 0, 0, }
   87 };
   88 
   89 
   90 /*
   91  * Construct pmap_devmap[] with DT-derived config data.
   92  */
   93 int
   94 initarm_devmap_init(void)
   95 {
   96         int i = 0;
   97         fdt_devmap[i].pd_va = 0xf0100000;
   98         fdt_devmap[i].pd_pa = 0x10100000;
   99         fdt_devmap[i].pd_size = 0x01000000;       /* 1 MB */
  100         fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
  101         fdt_devmap[i].pd_cache = PTE_DEVICE;
  102 
  103         arm_devmap_register_table(&fdt_devmap[0]);
  104         return (0);
  105 }
  106 
  107 struct arm32_dma_range *
  108 bus_dma_get_range(void)
  109 {
  110 
  111         return (NULL);
  112 }
  113 
  114 int
  115 bus_dma_get_range_nb(void)
  116 {
  117 
  118         return (0);
  119 }
  120 
  121 void
  122 cpu_reset()
  123 {
  124         printf("cpu_reset\n");
  125         while (1);
  126 }
  127 

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