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/broadcom/bcm2835/bcm2835_bscreg.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
    3  *
    4  * Copyright (c) 2012 Oleksandr Tymoshenko <gonzo@freebsd.org>
    5  * Copyright (c) 2013 Luiz Otavio O Souza <loos@freebsd.org>
    6  * All rights reserved.
    7  *
    8  * Redistribution and use in source and binary forms, with or without
    9  * modification, are permitted provided that the following conditions
   10  * are met:
   11  * 1. Redistributions of source code must retain the above copyright
   12  *    notice, this list of conditions and the following disclaimer.
   13  * 2. Redistributions in binary form must reproduce the above copyright
   14  *    notice, this list of conditions and the following disclaimer in the
   15  *    documentation and/or other materials provided with the distribution.
   16  *
   17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   27  * SUCH DAMAGE.
   28  *
   29  * $FreeBSD$
   30  */
   31 
   32 #ifndef _BCM2835_BSCREG_H_
   33 #define _BCM2835_BSCREG_H_
   34 
   35 #define BCM_BSC_CORE_CLK        150000000U
   36 #define BCM_BSC_CTRL            0x00
   37 #define BCM_BSC_CTRL_I2CEN              (1 << 15)
   38 #define BCM_BSC_CTRL_INTR               (1 << 10)
   39 #define BCM_BSC_CTRL_INTT               (1 << 9)
   40 #define BCM_BSC_CTRL_INTD               (1 << 8)
   41 #define BCM_BSC_CTRL_ST                 (1 << 7)
   42 #define BCM_BSC_CTRL_CLEAR1             (1 << 5)
   43 #define BCM_BSC_CTRL_CLEAR0             (1 << 4)
   44 #define BCM_BSC_CTRL_READ               (1 << 0)
   45 #define BCM_BSC_CTRL_INT_ALL \
   46     (BCM_BSC_CTRL_INTR | BCM_BSC_CTRL_INTT | BCM_BSC_CTRL_INTD)
   47 
   48 #define BCM_BSC_STATUS          0x04
   49 #define BCM_BSC_STATUS_CLKT             (1 << 9)
   50 #define BCM_BSC_STATUS_ERR              (1 << 8)
   51 #define BCM_BSC_STATUS_RXF              (1 << 7)
   52 #define BCM_BSC_STATUS_TXE              (1 << 6)
   53 #define BCM_BSC_STATUS_RXD              (1 << 5)
   54 #define BCM_BSC_STATUS_TXD              (1 << 4)
   55 #define BCM_BSC_STATUS_RXR              (1 << 3)
   56 #define BCM_BSC_STATUS_TXW              (1 << 2)
   57 #define BCM_BSC_STATUS_DONE             (1 << 1)
   58 #define BCM_BSC_STATUS_TA               (1 << 0)
   59 #define BCM_BSC_STATUS_ERRBITS \
   60     (BCM_BSC_STATUS_CLKT | BCM_BSC_STATUS_ERR)
   61 
   62 #define BCM_BSC_DLEN            0x08
   63 #define BCM_BSC_SLAVE           0x0c
   64 #define BCM_BSC_DATA            0x10
   65 #define BCM_BSC_CLOCK           0x14
   66 #define BCM_BSC_DELAY           0x18
   67 #define BCM_BSC_CLKT            0x1c
   68 
   69 #endif  /* _BCM2835_BSCREG_H_ */

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