zy7_machdep.c revision 259365 
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: stable/10/sys/arm/xilinx/zy7_machdep.c 259365 2013-12-14 00:16:08Z ian $
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: stable/10/sys/arm/xilinx/zy7_machdep.c 259365 2013-12-14 00:16:08Z ian $");
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
57void (*zynq7_cpu_reset)(void);
58
59vm_offset_t
60initarm_lastaddr(void)
61{
62
63	return (ZYNQ7_PSIO_VBASE);
64}
65
66void
67initarm_early_init(void)
68{
69
70}
71
72void
73initarm_gpio_init(void)
74{
75}
76
77void
78initarm_late_init(void)
79{
80}
81
82#define FDT_DEVMAP_SIZE 3
83static struct arm_devmap_entry fdt_devmap[FDT_DEVMAP_SIZE];
84
85/*
86 * Construct pmap_devmap[] with DT-derived config data.
87 */
88int
89initarm_devmap_init(void)
90{
91	int i = 0;
92
93	fdt_devmap[i].pd_va =	ZYNQ7_PSIO_VBASE;
94	fdt_devmap[i].pd_pa =	ZYNQ7_PSIO_HWBASE;
95	fdt_devmap[i].pd_size = ZYNQ7_PSIO_SIZE;
96	fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
97	fdt_devmap[i].pd_cache = PTE_DEVICE;
98	i++;
99
100	fdt_devmap[i].pd_va =	ZYNQ7_PSCTL_VBASE;
101	fdt_devmap[i].pd_pa = 	ZYNQ7_PSCTL_HWBASE;
102	fdt_devmap[i].pd_size = ZYNQ7_PSCTL_SIZE;
103	fdt_devmap[i].pd_prot = VM_PROT_READ | VM_PROT_WRITE;
104	fdt_devmap[i].pd_cache = PTE_DEVICE;
105	i++;
106
107	/* end of table */
108	fdt_devmap[i].pd_va = 0;
109	fdt_devmap[i].pd_pa = 0;
110	fdt_devmap[i].pd_size = 0;
111	fdt_devmap[i].pd_prot = 0;
112	fdt_devmap[i].pd_cache = 0;
113
114	arm_devmap_register_table(&fdt_devmap[0]);
115	return (0);
116}
117
118
119struct fdt_fixup_entry fdt_fixup_table[] = {
120	{ NULL, NULL }
121};
122
123static int
124fdt_gic_decode_ic(phandle_t node, pcell_t *intr, int *interrupt, int *trig,
125    int *pol)
126{
127
128	if (!fdt_is_compatible(node, "arm,gic"))
129		return (ENXIO);
130
131	*interrupt = fdt32_to_cpu(intr[0]);
132	*trig = INTR_TRIGGER_CONFORM;
133	*pol = INTR_POLARITY_CONFORM;
134
135	return (0);
136}
137
138fdt_pic_decode_t fdt_pic_table[] = {
139	&fdt_gic_decode_ic,
140	NULL
141};
142
143
144struct arm32_dma_range *
145bus_dma_get_range(void)
146{
147
148	return (NULL);
149}
150
151int
152bus_dma_get_range_nb(void)
153{
154
155	return (0);
156}
157
158void
159cpu_reset()
160{
161	if (zynq7_cpu_reset != NULL)
162		(*zynq7_cpu_reset)();
163
164	printf("cpu_reset: no platform cpu_reset.  hanging.\n");
165	for (;;)
166		;
167}
168