150 lines
3.0 KiB
C
150 lines
3.0 KiB
C
#include <common.h>
|
|
#include <command.h>
|
|
#include <getopt.h>
|
|
#include <linux/clk.h>
|
|
#include <linux/err.h>
|
|
|
|
static int do_clk_enable(int argc, char *argv[])
|
|
{
|
|
struct clk *clk;
|
|
|
|
if (argc != 2)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
clk = clk_lookup(argv[1]);
|
|
if (IS_ERR(clk))
|
|
return PTR_ERR(clk);
|
|
|
|
return clk_enable(clk);
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(clk_enable)
|
|
BAREBOX_CMD_HELP_USAGE("clk_enable <clk>\n")
|
|
BAREBOX_CMD_HELP_SHORT("enable <clk>\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(clk_enable)
|
|
.cmd = do_clk_enable,
|
|
.usage = "enable a clock",
|
|
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
|
|
BAREBOX_CMD_HELP(cmd_clk_enable_help)
|
|
BAREBOX_CMD_END
|
|
|
|
static int do_clk_disable(int argc, char *argv[])
|
|
{
|
|
struct clk *clk;
|
|
|
|
if (argc != 2)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
clk = clk_lookup(argv[1]);
|
|
if (IS_ERR(clk))
|
|
return PTR_ERR(clk);
|
|
|
|
clk_disable(clk);
|
|
|
|
return 0;
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(clk_disable)
|
|
BAREBOX_CMD_HELP_USAGE("clk_disable <clk>\n")
|
|
BAREBOX_CMD_HELP_SHORT("disable <clk>\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(clk_disable)
|
|
.cmd = do_clk_disable,
|
|
.usage = "disable a clock",
|
|
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
|
|
BAREBOX_CMD_HELP(cmd_clk_disable_help)
|
|
BAREBOX_CMD_END
|
|
|
|
static int do_clk_set_rate(int argc, char *argv[])
|
|
{
|
|
struct clk *clk;
|
|
unsigned long rate;
|
|
|
|
if (argc != 3)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
clk = clk_lookup(argv[1]);
|
|
if (IS_ERR(clk))
|
|
return PTR_ERR(clk);
|
|
|
|
rate = simple_strtoul(argv[2], NULL, 0);
|
|
|
|
return clk_set_rate(clk, rate);
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(clk_set_rate)
|
|
BAREBOX_CMD_HELP_USAGE("clk_set_rate <clk> <rate_hz>\n")
|
|
BAREBOX_CMD_HELP_SHORT("Set clock <clk> to <rate>\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(clk_set_rate)
|
|
.cmd = do_clk_set_rate,
|
|
.usage = "set a clocks rate",
|
|
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
|
|
BAREBOX_CMD_HELP(cmd_clk_set_rate_help)
|
|
BAREBOX_CMD_END
|
|
|
|
static int do_clk_dump(int argc, char *argv[])
|
|
{
|
|
int opt, verbose = 0;
|
|
|
|
while ((opt = getopt(argc, argv, "v")) > 0) {
|
|
switch(opt) {
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
default:
|
|
return -EINVAL;
|
|
|
|
}
|
|
}
|
|
|
|
clk_dump(verbose);
|
|
|
|
return 0;
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(clk_dump)
|
|
BAREBOX_CMD_HELP_USAGE("clk_dump [-v]\n")
|
|
BAREBOX_CMD_HELP_OPT ("-v", "verbose\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(clk_dump)
|
|
.cmd = do_clk_dump,
|
|
.usage = "show information about registered clocks",
|
|
BAREBOX_CMD_GROUP(CMD_GRP_INFO)
|
|
BAREBOX_CMD_HELP(cmd_clk_dump_help)
|
|
BAREBOX_CMD_END
|
|
|
|
static int do_clk_set_parent(int argc, char *argv[])
|
|
{
|
|
struct clk *clk, *parent;
|
|
|
|
if (argc != 3)
|
|
return COMMAND_ERROR_USAGE;
|
|
|
|
clk = clk_lookup(argv[1]);
|
|
if (IS_ERR(clk))
|
|
return PTR_ERR(clk);
|
|
parent = clk_lookup(argv[2]);
|
|
if (IS_ERR(parent))
|
|
return PTR_ERR(parent);
|
|
|
|
return clk_set_parent(clk, parent);
|
|
}
|
|
|
|
BAREBOX_CMD_HELP_START(clk_set_parent)
|
|
BAREBOX_CMD_HELP_USAGE("clk_set_parent <clk> <parent>\n")
|
|
BAREBOX_CMD_HELP_SHORT("Set parent of <clk> to <parent>\n")
|
|
BAREBOX_CMD_HELP_END
|
|
|
|
BAREBOX_CMD_START(clk_set_parent)
|
|
.cmd = do_clk_set_parent,
|
|
.usage = "set a parent of a clock",
|
|
BAREBOX_CMD_GROUP(CMD_GRP_HWMANIP)
|
|
BAREBOX_CMD_HELP(cmd_clk_set_parent_help)
|
|
BAREBOX_CMD_END
|