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/at91/board_tsc4370.c

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    1 /*-
    2  * Copyright (c) 2005-2008 Olivier Houchard.  All rights reserved.
    3  * Copyright (c) 2005-2012 Warner Losh.  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 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 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 <sys/cdefs.h>
   28 __FBSDID("$FreeBSD$");
   29 #include <sys/param.h>
   30 #include <sys/systm.h>
   31 
   32 #include <machine/board.h>
   33 #include <arm/at91/at91board.h>
   34 #include <arm/at91/at91var.h>
   35 #include <arm/at91/at91rm92reg.h>
   36 #include <arm/at91/at91rm9200var.h>
   37 #include <arm/at91/at91_piovar.h>
   38 #include <arm/at91/at91_pioreg.h>
   39 
   40 BOARD_INIT long
   41 board_init(void)
   42 {
   43 
   44         at91rm9200_set_subtype(AT91_ST_RM9200_PQFP);
   45 
   46         at91rm9200_config_uart(AT91_ID_DBGU, 0, 0);   /* DBGU just Tx and Rx */
   47         at91rm9200_config_uart(AT91RM9200_ID_USART0, 1, 0);   /* Tx and Rx */
   48         at91rm9200_config_uart(AT91RM9200_ID_USART1, 2, 0);   /* Tx and Rx */
   49         at91rm9200_config_uart(AT91RM9200_ID_USART2, 3, 0);   /* Tx and Rx */
   50         at91rm9200_config_uart(AT91RM9200_ID_USART3, 4, 0);   /* Tx and Rx */
   51 
   52         at91rm9200_config_mci(0);                       /* tsc4370 board has only 1 wire */
   53                                                         /* Newer boards may have 4 wires */
   54 
   55         /* Configure TWI */
   56         /* Configure SPI + dataflash */
   57         /* Configure SSC */
   58         /* Configure USB Host */
   59         /* Configure FPGA attached to chip selects */
   60 
   61         /* Pin assignment */
   62         /* Assert PA24 low -- talk to rubidium */
   63         at91_pio_use_gpio(AT91RM92_PIOA_BASE, AT91C_PIO_PA24);
   64         at91_pio_gpio_output(AT91RM92_PIOA_BASE, AT91C_PIO_PA24, 0);
   65         at91_pio_gpio_clear(AT91RM92_PIOA_BASE, AT91C_PIO_PA24);
   66         at91_pio_use_gpio(AT91RM92_PIOB_BASE,
   67             AT91C_PIO_PB16 | AT91C_PIO_PB17 | AT91C_PIO_PB18 | AT91C_PIO_PB19);
   68 
   69         return (at91_ramsize());
   70 }
   71 
   72 ARM_BOARD(NONE, "TSC4370 Controller Board");

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