/* * (C) Copyright 2000 * Wolfgang Denk, DENX Software Engineering, wd@denx.de. * * See file CREDITS for list of people who contributed to this * project. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, * MA 02111-1307 USA *//* * Cache support: switch on or off, get status */#include <armboot.h>#include <command.h>#include <cmd_cache.h>#if (CONFIG_COMMANDS & CFG_CMD_CACHE)static int on_off (const char *);int do_icache (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]){	switch (argc) {	case 2:			/* on / off	*/		switch (on_off(argv[1])) {#if 0	/* prevented by varargs handling; FALLTROUGH is harmless, too */		default: printf ("Usage:\n%s\n", cmdtp->usage);			return;#endif		case 0:	icache_disable();			break;		case 1:	icache_enable ();			break;		}		/* FALL TROUGH */	case 1:			/* get status */		printf ("Instruction Cache is %s\n",			icache_status() ? "ON" : "OFF");		return 0;	}	printf ("Usage:\n%s\n", cmdtp->usage);	return 1;}int do_dcache (cmd_tbl_t *cmdtp, bd_t *bd, int flag, int argc, char *argv[]){	switch (argc) {	case 2:			/* on / off	*/		switch (on_off(argv[1])) {#if 0	/* prevented by varargs handling; FALLTROUGH is harmless, too */		default: printf ("Usage:\n%s\n", cmdtp->usage);			return;#endif		case 0:	dcache_disable();			break;		case 1:	dcache_enable ();			break;		}		/* FALL TROUGH */	case 1:			/* get status */		printf ("Data (writethrough) Cache is %s\n",			dcache_status() ? "ON" : "OFF");		return 0;	}	printf ("Usage:\n%s\n", cmdtp->usage);	return 1;}static int on_off (const char *s){	if (strcmp(s, "on") == 0) {		return (1);	} else if (strcmp(s, "off") == 0) {		return (0);	}	return (-1);}#endif	/* CFG_CMD_CACHE */