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/dts/arm/rpi2.dts

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    1 /*
    2  * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@bluezbox.com>
    3  *
    4  * Redistribution and use in source and binary forms, with or without
    5  * modification, are permitted provided that the following conditions
    6  * are met:
    7  * 1. Redistributions of source code must retain the above copyright
    8  *    notice, this list of conditions and the following disclaimer.
    9  * 2. Redistributions in binary form must reproduce the above copyright
   10  *    notice, this list of conditions and the following disclaimer in the
   11  *    documentation and/or other materials provided with the distribution.
   12  *
   13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   14  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   16  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   17  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   18  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   19  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   20  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   21  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   22  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   23  * SUCH DAMAGE.
   24  *
   25  * $FreeBSD: stable/12/sys/dts/arm/rpi2.dts 332262 2018-04-08 00:56:19Z gonzo $
   26  */
   27 
   28 #include "bcm2836-rpi-2-b.dts"
   29 
   30 / {
   31         /* This is only necessary for FDT_DTB_STATIC */
   32         memory {
   33                 device_type = "memory";
   34                 reg = <0 0x8000000>; /* 128MB, Set by VideoCore */
   35         
   36         };
   37 
   38         rpi_ft5406 { 
   39                 compatible = "rpi,rpi-ft5406"; 
   40                 status = "okay"; 
   41         }; 
   42 
   43 
   44         /* Temporary patches */
   45         soc {
   46                 sdhost: mmc@7e202000 {
   47                         status = "disabled";
   48                 }
   49 
   50                 sdhci@7e300000 {
   51                         status = "okay";
   52                 };
   53 
   54                 spi@7e204000 {
   55                         status = "okay";
   56                         pinctrl-names = "default";
   57                         pinctrl-0 = <&spi0_pins &spi0_cs_pins>;
   58                 };
   59 
   60                 gpio@7e200000 {
   61                         /* Pins that can short 3.3V to GND in output mode: 46-47
   62                          * Pins used by VideoCore: 48-53
   63                          */
   64                         broadcom,read-only = <46>, <47>, <48>, <49>, <50>, 
   65                                              <51>, <52>, <53>;
   66                                              
   67                         /* Reserved */
   68                         pins_reserved: reserved {
   69                                 broadcom,pins = <48>, <49>, <50>, <51>, <52>,
   70                                                 <53>;
   71                         };
   72 
   73                         spi0_pins: spi0_pins {
   74                                 brcm,pins = <9 10 11>;
   75                                 brcm,function = <4>; /* alt0 */
   76                         };
   77 
   78                         spi0_cs_pins: spi0_cs_pins {
   79                                 brcm,pins = <8 7>;
   80                                 brcm,function = <1>; /* output */
   81                         };
   82                 }
   83 
   84                 vchiq {
   85                                 compatible = "brcm,bcm2835-vchiq";
   86                                 reg = <0x7e00b840 0xf>;
   87                                 interrupts = <0 2>;
   88                                 cache-line-size = <32>;
   89                         };
   90 
   91                 display {
   92                         compatible = "broadcom,bcm2835-fb", "broadcom,bcm2708-fb";
   93 
   94                         broadcom,vc-mailbox = <&mailbox>;
   95                         broadcom,vc-channel = <1>;
   96 
   97                         broadcom,width = <0>;         /* Set by VideoCore */
   98                         broadcom,height = <0>;        /* Set by VideoCore */
   99                         broadcom,depth = <0>;         /* Set by VideoCore */
  100                 };
  101 
  102         };
  103 };

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