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("$FreeBSD$");
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
50 extern const struct arm_devmap_entry at91_devmap[];
51 extern struct bus_space at91_bs_tag;
52 bus_space_tag_t fdtbus_bs_tag = &at91_bs_tag;
53
54 struct fdt_fixup_entry fdt_fixup_table[] = {
55 { NULL, NULL }
56 };
57
58 static int
fdt_aic_decode_ic(phandle_t node,pcell_t * intr,int * interrupt,int * trig,int * pol)59 fdt_aic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
60 int *pol)
61 {
62 int offset;
63
64 if (fdt_is_compatible(node, "atmel,at91rm9200-aic"))
65 offset = 0;
66 else
67 return (ENXIO);
68
69 *interrupt = fdt32_to_cpu(intr[0]) + offset;
70 *trig = INTR_TRIGGER_CONFORM;
71 *pol = INTR_POLARITY_CONFORM;
72
73 return (0);
74 }
75
76 fdt_pic_decode_t fdt_pic_table[] = {
77 &fdt_aic_decode_ic,
78 NULL
79 };
80
81 static void
at91_eoi(void * unused)82 at91_eoi(void *unused)
83 {
84 uint32_t *eoicr = (uint32_t *)(0xdffff000 + IC_EOICR);
85
86 *eoicr = 0;
87 }
88
89
90 vm_offset_t
platform_lastaddr(void)91 platform_lastaddr(void)
92 {
93
94 return (arm_devmap_lastaddr());
95 }
96
97 void
platform_probe_and_attach(void)98 platform_probe_and_attach(void)
99 {
100
101 arm_post_filter = at91_eoi;
102 at91_soc_id();
103 }
104
105 int
platform_devmap_init(void)106 platform_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
116 void
platform_gpio_init(void)117 platform_gpio_init(void)
118 {
119 }
120
121 void
platform_late_init(void)122 platform_late_init(void)
123 {
124 }
125