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  • /*
     * Copyright (c) 2012, Google Inc. All rights reserved.
     *
    
     * SPDX-License-Identifier:	GPL-2.0+
    
     */
    
    #include <common.h>
    
    static int do_bootstage_report(cmd_tbl_t *cmdtp, int flag, int argc,
    			       char * const argv[])
    {
    	bootstage_report();
    
    	return 0;
    }
    
    static int get_base_size(int argc, char * const argv[], ulong *basep,
    			 ulong *sizep)
    {
    	char *endp;
    
    
    	*basep = CONFIG_BOOTSTAGE_STASH_ADDR;
    
    	*sizep = CONFIG_BOOTSTAGE_STASH_SIZE;
    	if (argc < 2)
    		return 0;
    	*basep = simple_strtoul(argv[1], &endp, 16);
    	if (*argv[1] == 0 || *endp != 0)
    		return -1;
    	if (argc == 2)
    		return 0;
    	*sizep = simple_strtoul(argv[2], &endp, 16);
    	if (*argv[2] == 0 || *endp != 0)
    		return -1;
    
    	return 0;
    }
    
    static int do_bootstage_stash(cmd_tbl_t *cmdtp, int flag, int argc,
    			      char * const argv[])
    {
    	ulong base, size;
    	int ret;
    
    	if (get_base_size(argc, argv, &base, &size))
    		return CMD_RET_USAGE;
    	if (base == -1UL) {
    		printf("No bootstage stash area defined\n");
    		return 1;
    	}
    
    	if (0 == strcmp(argv[0], "stash"))
    		ret = bootstage_stash((void *)base, size);
    	else
    		ret = bootstage_unstash((void *)base, size);
    	if (ret)
    		return 1;
    
    	return 0;
    }
    
    static cmd_tbl_t cmd_bootstage_sub[] = {
    	U_BOOT_CMD_MKENT(report, 2, 1, do_bootstage_report, "", ""),
    	U_BOOT_CMD_MKENT(stash, 4, 0, do_bootstage_stash, "", ""),
    	U_BOOT_CMD_MKENT(unstash, 4, 0, do_bootstage_stash, "", ""),
    };
    
    /*
     * Process a bootstage sub-command
     */
    static int do_boostage(cmd_tbl_t *cmdtp, int flag, int argc,
    		       char * const argv[])
    {
    	cmd_tbl_t *c;
    
    	/* Strip off leading 'bootstage' command argument */
    	argc--;
    	argv++;
    
    	c = find_cmd_tbl(argv[0], cmd_bootstage_sub,
    			 ARRAY_SIZE(cmd_bootstage_sub));
    
    	if (c)
    		return c->cmd(cmdtp, flag, argc, argv);
    	else
    		return CMD_RET_USAGE;
    }
    
    
    U_BOOT_CMD(bootstage, 4, 1, do_boostage,
    	"Boot stage command",
    	" - check boot progress and timing\n"
    	"report                      - Print a report\n"
    	"stash [<start> [<size>]]    - Stash data into memory\n"
    	"unstash [<start> [<size>]]  - Unstash data from memory"
    );