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/mips/broadcom/bcm_socinfo.c

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    1 /*-
    2  * Copyright (c) 2016 Michael Zhilin <mizhka@gmail.com>
    3  *
    4  * All rights reserved.
    5  *
    6  * Redistribution and use in source and binary forms, with or without
    7  * modification, are permitted provided that the following conditions
    8  * are met:
    9  * 1. Redistributions of source code must retain the above copyright
   10  *    notice, this list of conditions and the following disclaimer.
   11  * 2. Redistributions in binary form must reproduce the above copyright
   12  *    notice, this list of conditions and the following disclaimer in the
   13  *    documentation and/or other materials provided with the distribution.
   14  *
   15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   25  * SUCH DAMAGE.
   26  */
   27 
   28 #include <sys/cdefs.h>
   29 __FBSDID("$FreeBSD: releng/11.2/sys/mips/broadcom/bcm_socinfo.c 302190 2016-06-25 04:34:54Z landonf $");
   30 
   31 #include <sys/param.h>
   32 #include "bcm_socinfo.h"
   33 
   34 /* found on https://wireless.wiki.kernel.org/en/users/drivers/b43/soc */
   35 struct bcm_socinfo bcm_socinfos[] = {
   36                 {0x00005300, 600, 25000000, 1}, /* BCM4706 to check */
   37                 {0x0022B83A, 300, 20000000, 1}, /* BCM4716B0 ASUS RT-N12  */
   38                 {0x00914716, 354, 20000000, 1}, /* BCM4717A1 to check  */
   39                 {0x00A14716, 480, 20000000, 1}, /* BCM4718A1 ASUS RT-N16 */
   40                 {0x00435356, 300, 25000000, 1}, /* BCM5356A1 (RT-N10, WNR1000v3) */
   41                 {0x00825357, 500, 20000000, 1}, /* BCM5358UB0 ASUS RT-N53A1 */
   42                 {0x00845357, 300, 20000000, 1}, /* BCM5357B0 to check */
   43                 {0x00945357, 500, 20000000, 1}, /* BCM5358 */
   44                 {0x00A45357, 500, 20000000, 1}, /* BCM47186B0 Tenda N60  */
   45                 {0x0085D144, 300, 20000000, 1}, /* BCM5356C0 */
   46                 {0x00B5D144, 300, 20000000, 1}, /* BCM5357C0 */
   47                 {0x00015365, 200, 0, 1},        /* BCM5365 */
   48                 {0,0,0}
   49 };
   50 
   51 /* Most popular BCM SoC info */
   52 struct bcm_socinfo BCM_DEFAULT_SOCINFO = {0x0, 300, 20000000, 0};
   53 
   54 struct bcm_socinfo*
   55 bcm_get_socinfo_by_socid(uint32_t key)
   56 {
   57         struct bcm_socinfo* start;
   58 
   59         if(!key)
   60                 return (NULL);
   61 
   62         for(start = bcm_socinfos; start->id > 0; start++)
   63                 if(start->id == key)
   64                         return (start);
   65 
   66         return (NULL);
   67 }
   68 
   69 struct bcm_socinfo*
   70 bcm_get_socinfo(void)
   71 {
   72         uint32_t                socid;
   73         struct bcm_socinfo      *socinfo;
   74 
   75         /*
   76          * We need Chip ID + Revision + Package
   77          * --------------------------------------------------------------
   78          * |    Mask            | Usage                                 |
   79          * --------------------------------------------------------------
   80          * |    0x0000FFFF      | Chip ID                               |
   81          * |    0x000F0000      | Chip Revision                         |
   82          * |    0x00F00000      | Package Options                       |
   83          * |    0x0F000000      | Number of Cores (ChipCommon Rev. >= 4)|
   84          * |    0xF0000000      | Chip Type                             |
   85          * --------------------------------------------------------------
   86          */
   87 
   88         socid = BCM_READ_REG32(BCM_REG_CHIPC_ID) & 0x00FFFFFF;
   89         socinfo = bcm_get_socinfo_by_socid(socid);
   90         return (socinfo != NULL) ? socinfo : &BCM_DEFAULT_SOCINFO;
   91 }

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