[people/ms/u-boot.git] / common / cmd_cache.c

/*
 * (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 <common.h>
#include <command.h>

static int on_off (const char *);

int do_icache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	switch (argc) {
	case 2:			/* on / off	*/
		switch (on_off(argv[1])) {
		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;
	default:
		return cmd_usage(cmdtp);
	}
	return 0;
}

int do_dcache ( cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	switch (argc) {
	case 2:			/* on / off	*/
		switch (on_off(argv[1])) {
		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;
	default:
		return cmd_usage(cmdtp);
	}
	return 0;

}

static int on_off (const char *s)
{
	if (strcmp(s, "on") == 0) {
		return (1);
	} else if (strcmp(s, "off") == 0) {
		return (0);
	}
	return (-1);
}


U_BOOT_CMD(
	icache,   2,   1,     do_icache,
	"enable or disable instruction cache",
	"[on, off]\n"
	"    - enable or disable instruction cache"
);

U_BOOT_CMD(
	dcache,   2,   1,     do_dcache,
	"enable or disable data cache",
	"[on, off]\n"
	"    - enable or disable data (writethrough) cache"
);
Commit	Line	Data
3863585b WD	1	/*
	2	* (C) Copyright 2000
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* See file CREDITS for list of people who contributed to this
	6	* project.
	7	*
	8	* This program is free software; you can redistribute it and/or
	9	* modify it under the terms of the GNU General Public License as
	10	* published by the Free Software Foundation; either version 2 of
	11	* the License, or (at your option) any later version.
	12	*
	13	* This program is distributed in the hope that it will be useful,
	14	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	* GNU General Public License for more details.
	17	*
	18	* You should have received a copy of the GNU General Public License
	19	* along with this program; if not, write to the Free Software
	20	* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
	21	* MA 02111-1307 USA
	22	*/
	23
	24	/*
	25	* Cache support: switch on or off, get status
	26	*/
	27	#include <common.h>
	28	#include <command.h>
3863585b	29
3863585b WD	30	static int on_off (const char *);
3863585b WD	31
54841ab5	32	int do_icache ( cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
3863585b WD	33	{
	34	switch (argc) {
	35	case 2: /* on / off */
	36	switch (on_off(argv[1])) {
3863585b WD	37	case 0: icache_disable();
	38	break;
	39	case 1: icache_enable ();
	40	break;
	41	}
	42	/* FALL TROUGH */
	43	case 1: /* get status */
	44	printf ("Instruction Cache is %s\n",
	45	icache_status() ? "ON" : "OFF");
	46	return 0;
	47	default:
47e26b1b	48	return cmd_usage(cmdtp);
3863585b WD	49	}
	50	return 0;
	51	}
	52
54841ab5	53	int do_dcache ( cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
3863585b WD	54	{
	55	switch (argc) {
	56	case 2: /* on / off */
	57	switch (on_off(argv[1])) {
3863585b WD	58	case 0: dcache_disable();
	59	break;
	60	case 1: dcache_enable ();
	61	break;
	62	}
	63	/* FALL TROUGH */
	64	case 1: /* get status */
	65	printf ("Data (writethrough) Cache is %s\n",
	66	dcache_status() ? "ON" : "OFF");
	67	return 0;
	68	default:
47e26b1b	69	return cmd_usage(cmdtp);
3863585b WD	70	}
	71	return 0;
	72
	73	}
	74
	75	static int on_off (const char *s)
	76	{
	77	if (strcmp(s, "on") == 0) {
	78	return (1);
	79	} else if (strcmp(s, "off") == 0) {
	80	return (0);
	81	}
	82	return (-1);
	83	}
	84
8bde7f77	85
0d498393 WD	86	U_BOOT_CMD(
0d498393 WD	87	icache, 2, 1, do_icache,
2fb2604d	88	"enable or disable instruction cache",
8bde7f77	89	"[on, off]\n"
a89c33db	90	" - enable or disable instruction cache"
8bde7f77 WD	91	);
8bde7f77 WD	92
0d498393 WD	93	U_BOOT_CMD(
0d498393 WD	94	dcache, 2, 1, do_dcache,
2fb2604d	95	"enable or disable data cache",
8bde7f77	96	"[on, off]\n"
a89c33db	97	" - enable or disable data (writethrough) cache"
8bde7f77	98	);