xref: /freebsd/sys/arm/mv/clk/periph.c (revision 924226fba12cc9a228c73b956e1b7fa24c60b055)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 2021 Semihalf.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #include <sys/cdefs.h>
29 __FBSDID("$FreeBSD$");
30 
31 #include <sys/param.h>
32 #include <sys/bus.h>
33 #include <sys/kernel.h>
34 #include <sys/module.h>
35 #include <sys/mutex.h>
36 #include <sys/rman.h>
37 #include <machine/bus.h>
38 
39 #include <dev/fdt/simplebus.h>
40 
41 #include <dev/extres/clk/clk.h>
42 #include <dev/extres/clk/clk_div.h>
43 #include <dev/extres/clk/clk_fixed.h>
44 #include <dev/extres/clk/clk_gate.h>
45 #include <dev/extres/clk/clk_mux.h>
46 
47 #include <dev/ofw/ofw_bus.h>
48 #include <dev/ofw/ofw_bus_subr.h>
49 
50 #include "clkdev_if.h"
51 #include "periph.h"
52 
53 int
54 a37x0_periph_create_mux(struct clkdom *clkdom,
55     struct clk_mux_def *mux, int id)
56 {
57 	int error;
58 
59 	mux->clkdef.id = id;
60 
61 	error = clknode_mux_register(clkdom, mux);
62 	if (error != 0) {
63 		printf("Failed to create %s: %d\n", mux->clkdef.name, error);
64 		return (error);
65 	}
66 
67 	return (0);
68 }
69 
70 int
71 a37x0_periph_create_div(struct clkdom *clkdom,
72     struct clk_div_def *div, int id)
73 {
74 	int error;
75 
76 	div->clkdef.id = id;
77 
78 	error = clknode_div_register(clkdom, div);
79 	if (error != 0) {
80 		printf("Failed to register %s: %d\n", div->clkdef.name, error);
81 		return (error);
82 	}
83 
84 	return (0);
85 }
86 
87 int
88 a37x0_periph_create_gate(struct clkdom *clkdom,
89     struct clk_gate_def *gate, int id)
90 {
91 	int error;
92 
93 	gate->clkdef.id = id;
94 
95 	error = clknode_gate_register(clkdom, gate);
96 	if (error != 0) {
97 		printf("Failed to create %s:%d\n", gate->clkdef.name, error);
98 		return (error);
99 	}
100 
101 	return (0);
102 }
103 
104 void
105 a37x0_periph_set_props(struct clknode_init_def *clkdef,
106     const char **parent_names, unsigned int parent_cnt)
107 {
108 
109 	clkdef->parent_names = parent_names;
110 	clkdef->parent_cnt = parent_cnt;
111 }
112 
113