at91_common.c revision 298068 
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 298068 2016-04-15 16:05:41Z andrew $");
28
29#define _ARM32_BUS_DMA_PRIVATE
30#include <sys/param.h>
31#include <sys/systm.h>
32#include <sys/bus.h>
33
34#include <vm/vm.h>
35
36#include <machine/devmap.h>
37#include <machine/intr.h>
38#include <machine/machdep.h>
39#include <machine/platform.h>
40
41#include <arm/at91/at91var.h>
42#include <arm/at91/at91soc.h>
43#include <arm/at91/at91_aicreg.h>
44
45#include <dev/fdt/fdt_common.h>
46#include <dev/ofw/openfirm.h>
47
48#include <machine/fdt.h>
49
50extern const struct arm_devmap_entry at91_devmap[];
51
52struct fdt_fixup_entry fdt_fixup_table[] = {
53	{ NULL, NULL }
54};
55
56#ifndef INTRNG
57static int
58fdt_aic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
59    int *pol)
60{
61	int offset;
62
63	if (fdt_is_compatible(node, "atmel,at91rm9200-aic"))
64		offset = 0;
65	else
66		return (ENXIO);
67
68	*interrupt = fdt32_to_cpu(intr[0]) + offset;
69	*trig = INTR_TRIGGER_CONFORM;
70	*pol = INTR_POLARITY_CONFORM;
71
72	return (0);
73}
74
75fdt_pic_decode_t fdt_pic_table[] = {
76	&fdt_aic_decode_ic,
77	NULL
78};
79#endif
80
81static void
82at91_eoi(void *unused)
83{
84	uint32_t *eoicr = (uint32_t *)(0xdffff000 + IC_EOICR);
85
86	*eoicr = 0;
87}
88
89
90vm_offset_t
91platform_lastaddr(void)
92{
93
94	return (arm_devmap_lastaddr());
95}
96
97void
98platform_probe_and_attach(void)
99{
100
101	arm_post_filter = at91_eoi;
102	at91_soc_id();
103}
104
105int
106platform_devmap_init(void)
107{
108
109//	arm_devmap_add_entry(0xfff00000, 0x00100000); /* 1MB - uart, aic and timers*/
110
111	arm_devmap_register_table(at91_devmap);
112
113	return (0);
114}
115
116void
117platform_gpio_init(void)
118{
119}
120
121void
122platform_late_init(void)
123{
124}
125