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    /*
     * Copyright (C) 2013 Xilinx, Inc.
     *
     * SPDX-License-Identifier:	GPL-2.0+
     */
    #include <common.h>
    #include <command.h>
    #include <clk.h>
    
    int __weak soc_clk_dump(void)
    {
    	puts("Not implemented\n");
    	return 1;
    }
    
    static int do_clk_dump(cmd_tbl_t *cmdtp, int flag, int argc,
    		       char *const argv[])
    {
    	return soc_clk_dump();
    }
    
    static cmd_tbl_t cmd_clk_sub[] = {
    	U_BOOT_CMD_MKENT(dump, 1, 1, do_clk_dump, "", ""),
    };
    
    static int do_clk(cmd_tbl_t *cmdtp, int flag, int argc,
    		  char *const argv[])
    {
    	cmd_tbl_t *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);