cmd/clk.c

   1 /*
   2  * Copyright (C) 2013 Xilinx, Inc.
   3  *
   4  * SPDX-License-Identifier:     GPL-2.0+
   5  */
   6 #include <common.h>
   7 #include <command.h>
   8 #include <clk.h>
   9
  10 int __weak soc_clk_dump(void)
  11 {
  12         puts("Not implemented\n");
  13         return 1;
  14 }
  15
  16 static int do_clk_dump(cmd_tbl_t *cmdtp, int flag, int argc,
  17                        char *const argv[])
  18 {
  19         return soc_clk_dump();
  20 }
  21
  22 static cmd_tbl_t cmd_clk_sub[] = {
  23         U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
  24 };
  25
  26 static int do_clk(cmd_tbl_t *cmdtp, int flag, int argc,
  27                   char *const argv[])
  28 {
  29         cmd_tbl_t *c;
  30
  31         if (argc < 2)
  32                 return CMD_RET_USAGE;
  33
  34         /* Strip off leading 'clk' command argument */
  35         argc--;
  36         argv++;
  37
  38         c = find_cmd_tbl(argv[0], &cmd_clk_sub[0], ARRAY_SIZE(cmd_clk_sub));
  39
  40         if (c)
  41                 return c->cmd(cmdtp, flag, argc, argv);
  42         else
  43                 return CMD_RET_USAGE;
  44 }
  45
  46 #ifdef CONFIG_SYS_LONGHELP
  47 static char clk_help_text[] =
  48         "dump - Print clock frequencies";
  49 #endif
  50
  51 U_BOOT_CMD(clk, 2, 1, do_clk, "CLK sub-system", clk_help_text);