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.h

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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 /*
   29  * $FreeBSD: releng/11.0/sys/mips/broadcom/bcm_socinfo.h 302190 2016-06-25 04:34:54Z landonf $
   30  */
   31 
   32 #ifndef _MIPS_BROADCOM_BCM_SOCINFO_H_
   33 #define _MIPS_BROADCOM_BCM_SOCINFO_H_
   34 
   35 #include <machine/cpuregs.h>
   36 
   37 struct bcm_socinfo {
   38         uint32_t        id;
   39         uint32_t        cpurate;        /* in MHz */
   40         uint32_t        uartrate;       /* in Hz */
   41         int             double_count;
   42 };
   43 
   44 struct bcm_socinfo*     bcm_get_socinfo_by_socid(uint32_t key);
   45 struct bcm_socinfo*     bcm_get_socinfo(void);
   46 
   47 #define BCM_SOCADDR                             0x18000000
   48 #define         BCM_REG_CHIPC_ID                0x0
   49 #define         BCM_REG_CHIPC_UART              0x300
   50 #define         BCM_REG_CHIPC_PMUWD_OFFS        0x634
   51 #define BCM_SOCREG(reg)                                                 \
   52                 MIPS_PHYS_TO_KSEG1((BCM_SOCADDR + (reg)))
   53 #define BCM_READ_REG32(reg)                                             \
   54         *((volatile uint32_t *)BCM_SOCREG(reg))
   55 #define BCM_WRITE_REG32(reg, value)                                     \
   56         do {                                                            \
   57                 writel((void*)BCM_SOCREG((reg)),value);                 \
   58         } while (0);
   59 
   60 #endif /* _MIPS_BROADCOM_BCM_SOCINFO_H_ */

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