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/freescale/imx/imx53_machdep.c

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    1 /*-
    2  * Copyright (c) 2013 Ian Lepore <ian@freebsd.org>
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  */
   26 
   27 #include "opt_platform.h"
   28 
   29 #include <sys/cdefs.h>
   30 __FBSDID("$FreeBSD: releng/11.0/sys/arm/freescale/imx/imx53_machdep.c 298854 2016-04-30 17:27:33Z andrew $");
   31 
   32 #include <sys/param.h>
   33 #include <sys/systm.h>
   34 #include <sys/bus.h>
   35 #include <sys/reboot.h>
   36 #include <sys/devmap.h>
   37 
   38 #include <vm/vm.h>
   39 
   40 #include <machine/bus.h>
   41 #include <machine/machdep.h>
   42 #include <machine/platformvar.h> 
   43 
   44 #include <arm/freescale/imx/imx_machdep.h>
   45 
   46 #include "platform_if.h"
   47 
   48 static vm_offset_t
   49 imx53_lastaddr(platform_t plat)
   50 {
   51 
   52         return (devmap_lastaddr());
   53 }
   54 
   55 static int
   56 imx53_attach(platform_t plat)
   57 {
   58 
   59         /* XXX - Get rid of this stuff soon. */
   60         boothowto |= RB_VERBOSE|RB_MULTIPLE;
   61         bootverbose = 1;
   62 
   63         return (0);
   64 }
   65 
   66 /*
   67  * Set up static device mappings.  This is hand-optimized platform-specific
   68  * config data which covers most of the common on-chip devices with a few 1MB
   69  * section mappings.
   70  *
   71  * Notably missing are entries for GPU, IPU, in general anything video related.
   72  */
   73 static int
   74 imx53_devmap_init(platform_t plat)
   75 {
   76 
   77         devmap_add_entry(0x50000000, 0x00100000);
   78         devmap_add_entry(0x53f00000, 0x00100000);
   79         devmap_add_entry(0x63f00000, 0x00100000);
   80 
   81         return (0);
   82 }
   83 
   84 void
   85 cpu_reset(void)
   86 {
   87 
   88         imx_wdog_cpu_reset(0x53F98000);
   89 }
   90 
   91 u_int imx_soc_type()
   92 {
   93         return (IMXSOC_53);
   94 }
   95 
   96 static platform_method_t imx53_methods[] = {
   97         PLATFORMMETHOD(platform_attach,         imx53_attach),
   98         PLATFORMMETHOD(platform_devmap_init,    imx53_devmap_init),
   99         PLATFORMMETHOD(platform_lastaddr,       imx53_lastaddr),
  100 
  101         PLATFORMMETHOD_END,
  102 };
  103 
  104 FDT_PLATFORM_DEF(imx53, "i.MX53", 0, "fsl,imx53", 0);
  105 

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