at91_common.c revision 270110 
1/*-
2 * Copyright (c) 2014 M. Warner Losh. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 * 1. Redistributions of source code must retain the above copyright
8 *    notice, this list of conditions and the following disclaimer.
9 * 2. Redistributions in binary form must reproduce the above copyright
10 *    notice, this list of conditions and the following disclaimer in the
11 *    documentation and/or other materials provided with the distribution.
12 *
13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
16 * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
23 * SUCH DAMAGE.
24 */
25
26#include <sys/cdefs.h>
27__FBSDID("$FreeBSD: head/sys/arm/at91/at91_common.c 270110 2014-08-17 18:27:02Z bz $");
28
29#define _ARM32_BUS_DMA_PRIVATE
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <vm/vm.h>
33#include <machine/devmap.h>
34#include <machine/machdep.h>
35#include <machine/platform.h>
36#include <arm/at91/at91var.h>
37#include <arm/at91/at91soc.h>
38#include <arm/at91/at91_aicreg.h>
39#include <dev/fdt/fdt_common.h>
40#include <dev/ofw/openfirm.h>
41#include <machine/fdt.h>
42
43extern const struct arm_devmap_entry at91_devmap[];
44extern struct bus_space at91_bs_tag;
45bus_space_tag_t fdtbus_bs_tag = &at91_bs_tag;
46
47struct fdt_fixup_entry fdt_fixup_table[] = {
48	{ NULL, NULL }
49};
50
51static int
52fdt_aic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
53    int *pol)
54{
55	int offset;
56
57	if (fdt_is_compatible(node, "atmel,at91rm9200-aic"))
58		offset = 0;
59	else
60		return (ENXIO);
61
62	*interrupt = fdt32_to_cpu(intr[0]) + offset;
63	*trig = INTR_TRIGGER_CONFORM;
64	*pol = INTR_POLARITY_CONFORM;
65
66	return (0);
67}
68
69fdt_pic_decode_t fdt_pic_table[] = {
70	&fdt_aic_decode_ic,
71	NULL
72};
73
74static void
75at91_eoi(void *unused)
76{
77	uint32_t *eoicr = (uint32_t *)(0xdffff000 + IC_EOICR);
78
79	*eoicr = 0;
80}
81
82
83vm_offset_t
84platform_lastaddr(void)
85{
86
87	return (arm_devmap_lastaddr());
88}
89
90void
91platform_probe_and_attach(void)
92{
93
94	arm_post_filter = at91_eoi;
95	at91_soc_id();
96}
97
98int
99platform_devmap_init(void)
100{
101
102//	arm_devmap_add_entry(0xfff00000, 0x00100000); /* 1MB - uart, aic and timers*/
103
104	arm_devmap_register_table(at91_devmap);
105
106	return (0);
107}
108
109void
110platform_gpio_init(void)
111{
112}
113
114void
115platform_late_init(void)
116{
117}
118