common.c

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    1 /*-
    2  * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@gmail.com>
    3  * 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 THE 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 THE 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: releng/10.0/sys/arm/allwinner/common.c 254056 2013-08-07 11:07:56Z ganbold $");
   29 
   30 #include <sys/param.h>
   31 #include <sys/systm.h>
   32 #include <sys/bus.h>
   33 #include <sys/kernel.h>
   34 
   35 #include <dev/fdt/fdt_common.h>
   36 #include <dev/ofw/openfirm.h>
   37 
   38 #include <machine/bus.h>
   39 #include <machine/fdt.h>
   40 #include <machine/vmparam.h>
   41 
   42 struct fdt_fixup_entry fdt_fixup_table[] = {
   43         { NULL, NULL }
   44 };
   45 
   46 static int
   47 fdt_aintc_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
   48     int *pol)
   49 {
   50         int offset;
   51 
   52         if (fdt_is_compatible(node, "allwinner,sun4i-ic"))
   53                 offset = 0;
   54         else if (fdt_is_compatible(node, "arm,gic"))
   55                 offset = 32;
   56         else
   57                 return (ENXIO);
   58 
   59         *interrupt = fdt32_to_cpu(intr[0]) + offset;
   60         *trig = INTR_TRIGGER_CONFORM;
   61         *pol = INTR_POLARITY_CONFORM;
   62 
   63         return (0);
   64 }
   65 
   66 fdt_pic_decode_t fdt_pic_table[] = {
   67         &fdt_aintc_decode_ic,
   68         NULL
   69 };

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FreeBSD/Linux Kernel Cross Reference sys/arm/allwinner/common.c

FreeBSD/Linux Kernel Cross Reference
sys/arm/allwinner/common.c