1 /*-
2 * Copyright (c) 2013 Thomas Skibo
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 * $FreeBSD$
27 */
28
29 /*
30 * Machine dependent code for Xilinx Zynq-7000 Soc.
31 *
32 * Reference: Zynq-7000 All Programmable SoC Technical Reference Manual.
33 * (v1.4) November 16, 2012. Xilinx doc UG585.
34 */
35
36 #include "opt_global.h"
37
38 #include <sys/cdefs.h>
39 __FBSDID("$FreeBSD$");
40
41 #define _ARM32_BUS_DMA_PRIVATE
42 #include <sys/param.h>
43 #include <sys/systm.h>
44 #include <sys/bus.h>
45
46 #include <vm/vm.h>
47 #include <vm/pmap.h>
48
49 #include <dev/fdt/fdt_common.h>
50
51 #include <machine/bus.h>
52 #include <machine/devmap.h>
53 #include <machine/machdep.h>
54
55 #include <arm/xilinx/zy7_reg.h>
56
57 void (*zynq7_cpu_reset)(void);
58
59 vm_offset_t
initarm_lastaddr(void)60 initarm_lastaddr(void)
61 {
62
63 return (arm_devmap_lastaddr());
64 }
65
66 void
initarm_early_init(void)67 initarm_early_init(void)
68 {
69
70 }
71
72 void
initarm_gpio_init(void)73 initarm_gpio_init(void)
74 {
75 }
76
77 void
initarm_late_init(void)78 initarm_late_init(void)
79 {
80 }
81
82 /*
83 * Set up static device mappings. Not strictly necessary -- simplebus will
84 * dynamically establish mappings as needed -- but doing it this way gets us
85 * nice efficient 1MB section mappings.
86 */
87 int
initarm_devmap_init(void)88 initarm_devmap_init(void)
89 {
90
91 arm_devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE);
92 arm_devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE);
93
94 return (0);
95 }
96
97
98 struct fdt_fixup_entry fdt_fixup_table[] = {
99 { NULL, NULL }
100 };
101
102 static int
fdt_gic_decode_ic(phandle_t node,pcell_t * intr,int * interrupt,int * trig,int * pol)103 fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
104 int *pol)
105 {
106
107 if (!fdt_is_compatible(node, "arm,gic"))
108 return (ENXIO);
109
110 *interrupt = fdt32_to_cpu(intr[0]);
111 *trig = INTR_TRIGGER_CONFORM;
112 *pol = INTR_POLARITY_CONFORM;
113
114 return (0);
115 }
116
117 fdt_pic_decode_t fdt_pic_table[] = {
118 &fdt_gic_decode_ic,
119 NULL
120 };
121
122
123 struct arm32_dma_range *
bus_dma_get_range(void)124 bus_dma_get_range(void)
125 {
126
127 return (NULL);
128 }
129
130 int
bus_dma_get_range_nb(void)131 bus_dma_get_range_nb(void)
132 {
133
134 return (0);
135 }
136
137 void
cpu_reset()138 cpu_reset()
139 {
140 if (zynq7_cpu_reset != NULL)
141 (*zynq7_cpu_reset)();
142
143 printf("cpu_reset: no platform cpu_reset. hanging.\n");
144 for (;;)
145 ;
146 }
147