1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
/*
* Copyright (C) 2016 Zodiac Inflight Innovation
* Author: Andrey Smirnov <andrew.smirnov@gmail.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <common.h>
#include <init.h>
#include <gpio.h>
#include <environment.h>
#include <linux/clk.h>
#include <dt-bindings/clock/vf610-clock.h>
#include <envfs.h>
static int expose_signals(const struct gpio *signals,
size_t signal_num)
{
int ret, i;
ret = gpio_request_array(signals, signal_num);
if (ret)
return ret;
for (i = 0; i < signal_num; i++)
export_env_ull(signals[i].label, signals[i].gpio);
return 0;
}
static int zii_vf610_cfu1_expose_signals(void)
{
static const struct gpio signals[] = {
{
.gpio = 132,
.flags = GPIOF_IN,
.label = "fim_sd",
},
{
.gpio = 118,
.flags = GPIOF_OUT_INIT_LOW,
.label = "fim_tdis",
},
};
if (!of_machine_is_compatible("zii,vf610cfu1-a"))
return 0;
return expose_signals(signals, ARRAY_SIZE(signals));
}
late_initcall(zii_vf610_cfu1_expose_signals);
static int zii_vf610_cfu1_spu3_expose_signals(void)
{
static const struct gpio signals[] = {
{
.gpio = 107,
.flags = GPIOF_OUT_INIT_LOW,
.label = "soc_sw_rstn",
},
{
.gpio = 98,
.flags = GPIOF_IN,
.label = "e6352_intn",
},
};
if (!of_machine_is_compatible("zii,vf610spu3-a") &&
!of_machine_is_compatible("zii,vf610cfu1-a"))
return 0;
return expose_signals(signals, ARRAY_SIZE(signals));
}
late_initcall(zii_vf610_cfu1_spu3_expose_signals);
static int zii_vf610_dev_print_clocks(void)
{
int i;
struct clk *clk;
struct device_node *ccm_np;
const unsigned long MHz = 1000000;
const char *clk_names[] = { "cpu", "ddr", "bus", "ipg" };
if (!of_machine_is_compatible("zii,vf610dev"))
return 0;
ccm_np = of_find_compatible_node(NULL, NULL, "fsl,vf610-ccm");
if (!ccm_np) {
pr_err("Couln't get CCM node\n");
return -ENOENT;
}
for (i = 0; i < ARRAY_SIZE(clk_names); i++) {
unsigned long rate;
const char *name = clk_names[i];
clk = of_clk_get_by_name(ccm_np, name);
if (IS_ERR(clk)) {
pr_err("Failed to get '%s' clock (%ld)\n",
name, PTR_ERR(clk));
return PTR_ERR(clk);
}
rate = clk_get_rate(clk);
pr_info("%s clock : %8lu MHz\n", name, rate / MHz);
}
return 0;
}
late_initcall(zii_vf610_dev_print_clocks);
static int zii_vf610_dev_set_hostname(void)
{
size_t i;
static const struct {
const char *compatible;
const char *hostname;
} boards[] = {
{ "zii,vf610spu3-a", "spu3-rev-a" },
{ "zii,vf610cfu1-a", "cfu1-rev-a" },
{ "zii,vf610dev-b", "dev-rev-b" },
{ "zii,vf610dev-c", "dev-rev-c" },
{ "zii,vf610scu4-aib-c", "scu4-aib-rev-c" },
};
if (!of_machine_is_compatible("zii,vf610dev"))
return 0;
for (i = 0; i < ARRAY_SIZE(boards); i++) {
if (of_machine_is_compatible(boards[i].compatible)) {
barebox_set_hostname(boards[i].hostname);
break;
}
}
defaultenv_append_directory(defaultenv_zii_vf610_dev);
return 0;
}
late_initcall(zii_vf610_dev_set_hostname);
|
