1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2013 Thomas Skibo
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
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_platform.h"
37
38 #include <sys/param.h>
39 #include <sys/systm.h>
40 #include <sys/bus.h>
41 #include <sys/devmap.h>
42
43 #include <vm/vm.h>
44 #include <vm/pmap.h>
45
46 #include <machine/bus.h>
47 #include <machine/machdep.h>
48 #include <machine/platform.h>
49 #include <machine/platformvar.h>
50
51 #include <arm/xilinx/zy7_machdep.h>
52 #include <arm/xilinx/zy7_reg.h>
53
54 #include "platform_if.h"
55 #include "platform_pl310_if.h"
56
57 void (*zynq7_cpu_reset)(void);
58
59 /*
60 * Set up static device mappings. Not strictly necessary -- simplebus will
61 * dynamically establish mappings as needed -- but doing it this way gets us
62 * nice efficient 1MB section mappings.
63 */
64 static int
zynq7_devmap_init(platform_t plat)65 zynq7_devmap_init(platform_t plat)
66 {
67
68 devmap_add_entry(ZYNQ7_PSIO_HWBASE, ZYNQ7_PSIO_SIZE);
69 devmap_add_entry(ZYNQ7_PSCTL_HWBASE, ZYNQ7_PSCTL_SIZE);
70
71 return (0);
72 }
73
74 static void
zynq7_do_cpu_reset(platform_t plat)75 zynq7_do_cpu_reset(platform_t plat)
76 {
77 if (zynq7_cpu_reset != NULL)
78 (*zynq7_cpu_reset)();
79
80 printf("cpu_reset: no platform cpu_reset. hanging.\n");
81 for (;;)
82 ;
83 }
84
85 static platform_method_t zynq7_methods[] = {
86 PLATFORMMETHOD(platform_devmap_init, zynq7_devmap_init),
87 PLATFORMMETHOD(platform_cpu_reset, zynq7_do_cpu_reset),
88
89 #ifdef SMP
90 PLATFORMMETHOD(platform_mp_setmaxid, zynq7_mp_setmaxid),
91 PLATFORMMETHOD(platform_mp_start_ap, zynq7_mp_start_ap),
92 #endif
93
94 PLATFORMMETHOD(platform_pl310_init, zynq7_pl310_init),
95
96 PLATFORMMETHOD_END,
97 };
98
99 FDT_PLATFORM_DEF(zynq7, "zynq7", 0, "xlnx,zynq-7000", 200);
100