61 lines
1.3 KiB
C
61 lines
1.3 KiB
C
#include <common.h>
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#include <command.h>
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#include <getopt.h>
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#include <mach/imx-regs.h>
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#include <mach/clock.h>
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static int do_clko(int argc, char *argv[])
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{
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int opt, div = 0, src = -2, num = 1, ret;
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while((opt = getopt(argc, argv, "n:d:s:")) > 0) {
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switch(opt) {
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case 'n':
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num = simple_strtoul(optarg, NULL, 0);
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break;
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case 'd':
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div = simple_strtoul(optarg, NULL, 0);
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break;
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case 's':
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src = simple_strtol(optarg, NULL, 0);
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break;
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}
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}
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if (div == 0 && src == -2)
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return COMMAND_ERROR_USAGE;
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if (src == -1) {
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imx_clko_set_src(num, -1);
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return 0;
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}
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if (src != -2)
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imx_clko_set_src(num, src);
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if (div != 0) {
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ret = imx_clko_set_div(num, div);
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if (ret < 0)
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printf("CLKO-line %i not supported.\n", num);
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else if (ret != div)
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printf("Divider limited to %d.\n", ret);
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}
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return 0;
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}
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static __maybe_unused char cmd_clko_help[] =
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"Usage: clko [OPTION]...\n"
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"Route different signals to the i.MX clko pin\n"
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" -n <num> Number of CLKO-line (Default 1)\n"
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" -d <div> Divider\n"
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" -s <source> Clock select. See Ref. Manual for valid sources. Use -1\n"
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" for disabling clock output\n";
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BAREBOX_CMD_START(clko)
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.cmd = do_clko,
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.usage = "Adjust CLKO setting",
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BAREBOX_CMD_HELP(cmd_clko_help)
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BAREBOX_CMD_END
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