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