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
|
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2013 Xilinx, Inc.
*/
#include <common.h>
#include <command.h>
#include <clk.h>
#if defined(CONFIG_DM) && defined(CONFIG_CLK)
#include <dm.h>
#include <dm/device.h>
#include <dm/root.h>
#include <dm/device-internal.h>
#include <linux/clk-provider.h>
#endif
#if defined(CONFIG_DM) && defined(CONFIG_CLK)
static void show_clks(struct udevice *dev, int depth, int last_flag)
{
int i, is_last;
struct udevice *child;
struct clk *clkp;
u32 rate;
clkp = dev_get_clk_ptr(dev);
if (device_get_uclass_id(dev) == UCLASS_CLK && clkp) {
depth++;
rate = clk_get_rate(clkp);
printf(" %-12u %8d ", rate, clkp->enable_count);
for (i = depth; i >= 0; i--) {
is_last = (last_flag >> i) & 1;
if (i) {
if (is_last)
printf(" ");
else
printf("| ");
} else {
if (is_last)
printf("`-- ");
else
printf("|-- ");
}
}
printf("%s\n", dev->name);
}
list_for_each_entry(child, &dev->child_head, sibling_node) {
is_last = list_is_last(&child->sibling_node, &dev->child_head);
show_clks(child, depth, (last_flag << 1) | is_last);
}
}
int __weak soc_clk_dump(void)
{
struct udevice *root;
root = dm_root();
if (root) {
printf(" Rate Usecnt Name\n");
printf("------------------------------------------\n");
show_clks(root, -1, 0);
}
return 0;
}
#else
int __weak soc_clk_dump(void)
{
puts("Not implemented\n");
return 1;
}
#endif
static int do_clk_dump(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
int ret;
ret = soc_clk_dump();
if (ret < 0) {
printf("Clock dump error %d\n", ret);
ret = CMD_RET_FAILURE;
}
return ret;
}
static struct cmd_tbl cmd_clk_sub[] = {
U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
};
static int do_clk(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
struct cmd_tbl *c;
if (argc < 2)
return CMD_RET_USAGE;
/* Strip off leading 'clk' command argument */
argc--;
argv++;
c = find_cmd_tbl(argv[0], &cmd_clk_sub[0], ARRAY_SIZE(cmd_clk_sub));
if (c)
return c->cmd(cmdtp, flag, argc, argv);
else
return CMD_RET_USAGE;
}
#ifdef CONFIG_SYS_LONGHELP
static char clk_help_text[] =
"dump - Print clock frequencies";
#endif
U_BOOT_CMD(clk, 2, 1, do_clk, "CLK sub-system", clk_help_text);
|
