a10_common.c revision 281085 
1/*-
2 * Copyright (c) 2012 Ganbold Tsagaankhuu <ganbold@freebsd.org>
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: head/sys/arm/allwinner/a10_common.c 281085 2015-04-04 21:34:26Z andrew $");
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/vmparam.h>
40
41struct fdt_fixup_entry fdt_fixup_table[] = {
42	{ NULL, NULL }
43};
44
45static int
46fdt_aintc_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
47    int *pol)
48{
49	int offset;
50
51	if (fdt_is_compatible(node, "allwinner,sun4i-ic"))
52		offset = 0;
53	else if (fdt_is_compatible(node, "arm,gic"))
54		offset = 32;
55	else
56		return (ENXIO);
57
58	*interrupt = fdt32_to_cpu(intr[0]) + offset;
59	*trig = INTR_TRIGGER_CONFORM;
60	*pol = INTR_POLARITY_CONFORM;
61
62	return (0);
63}
64
65fdt_pic_decode_t fdt_pic_table[] = {
66	&fdt_aintc_decode_ic,
67	NULL
68};
69