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: releng/10.0/sys/arm/xilinx/zy7_machdep.c 250015 2013-04-28 07:00:36Z wkoszek $
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: releng/10.0/sys/arm/xilinx/zy7_machdep.c 250015 2013-04-28 07:00:36Z wkoszek $");
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/pmap.h>
53 #include <machine/frame.h>
54 #include <machine/machdep.h>
55
56 #include <arm/xilinx/zy7_reg.h>
57
58 void (*zynq7_cpu_reset)(void);
59
60 vm_offset_t
61 initarm_lastaddr(void)
62 {
63
64 return (ZYNQ7_PSIO_VBASE - ARM_NOCACHE_KVA_SIZE);
65 }
66
67 void
68 initarm_gpio_init(void)
69 {
70 }
71
72 void
73 initarm_late_init(void)
74 {
75 }
76
77 #define FDT_DEVMAP_SIZE 3
78 static struct pmap_devmap fdt_devmap[FDT_DEVMAP_SIZE];
79
80 /*
81 * Construct pmap_devmap[] with DT-derived config data.
82 */
83 int
84 platform_devmap_init(void)
85 {
86 int i = 0;
87
88 fdt_devmap[i].pd_va = ZYNQ7_PSIO_VBASE;
89 fdt_devmap[i].pd_pa = ZYNQ7_PSIO_HWBASE;
90 fdt_devmap[i].pd_size = ZYNQ7_PSIO_SIZE;
91 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
92 fdt_devmap[i].pd_cache = PTE_DEVICE;
93 i++;
94
95 fdt_devmap[i].pd_va = ZYNQ7_PSCTL_VBASE;
96 fdt_devmap[i].pd_pa = ZYNQ7_PSCTL_HWBASE;
97 fdt_devmap[i].pd_size = ZYNQ7_PSCTL_SIZE;
98 fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
99 fdt_devmap[i].pd_cache = PTE_DEVICE;
100 i++;
101
102 /* end of table */
103 fdt_devmap[i].pd_va = 0;
104 fdt_devmap[i].pd_pa = 0;
105 fdt_devmap[i].pd_size = 0;
106 fdt_devmap[i].pd_prot = 0;
107 fdt_devmap[i].pd_cache = 0;
108
109 pmap_devmap_bootstrap_table = &fdt_devmap[0];
110 return (0);
111 }
112
113
114 struct fdt_fixup_entry fdt_fixup_table[] = {
115 { NULL, NULL }
116 };
117
118 static int
119 fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
120 int *pol)
121 {
122
123 if (!fdt_is_compatible(node, "arm,gic"))
124 return (ENXIO);
125
126 *interrupt = fdt32_to_cpu(intr[0]);
127 *trig = INTR_TRIGGER_CONFORM;
128 *pol = INTR_POLARITY_CONFORM;
129
130 return (0);
131 }
132
133 fdt_pic_decode_t fdt_pic_table[] = {
134 &fdt_gic_decode_ic,
135 NULL
136 };
137
138
139 struct arm32_dma_range *
140 bus_dma_get_range(void)
141 {
142
143 return (NULL);
144 }
145
146 int
147 bus_dma_get_range_nb(void)
148 {
149
150 return (0);
151 }
152
153 void
154 cpu_reset()
155 {
156 if (zynq7_cpu_reset != NULL)
157 (*zynq7_cpu_reset)();
158
159 printf("cpu_reset: no platform cpu_reset. hanging.\n");
160 for (;;)
161 ;
162 }
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