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

/*
 * (C) Copyright 2001
 * Erik Theisen,  Wave 7 Optics, etheisen@mindspring.com.
 *
 * 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
 */

/*
 * AMCC 4XX DCR Functions
 */

#include <common.h>
#include <config.h>
#include <command.h>

#if defined(CONFIG_4xx) && (CONFIG_COMMANDS & CFG_CMD_SETGETDCR)

/* =======================================================================
 * Interpreter command to retrieve an AMCC PPC 4xx Device Control Register
 * =======================================================================
 */
int do_getdcr ( cmd_tbl_t *cmdtp, int flag, int argc, char *argv[] )
{
	unsigned short dcrn;	/* Device Control Register Num */
	unsigned long value;	/* DCR's value */

	unsigned long get_dcr (unsigned short);

	/* Validate arguments */
	if (argc < 2) {
		printf ("Usage:\n%s\n", cmdtp->usage);
		return 1;
	}

	/* Get a DCR */
	dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16);
	value = get_dcr (dcrn);

	printf ("%04x: %08lx\n", dcrn, value);

	return 0;
}


/* ======================================================================
 * Interpreter command to set an AMCC PPC 4xx Device Control Register
 * ======================================================================
*/
int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
{
	unsigned long get_dcr (unsigned short);
	unsigned long set_dcr (unsigned short, unsigned long);
	unsigned short dcrn;	/* Device Control Register Num */
	unsigned long value;

	/* DCR's value */
	int nbytes;
	extern char console_buffer[];

	/* Validate arguments */
	if (argc < 2) {
		printf ("Usage:\n%s\n", cmdtp->usage);
		return 1;
	}

	/* Set a DCR */
	dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16);
	do {
		value = get_dcr (dcrn);
		printf ("%04x: %08lx", dcrn, value);
		nbytes = readline (" ? ");
		if (nbytes == 0) {
			/*
			 * <CR> pressed as only input, don't modify current
			 * location and exit command.
			 */
			nbytes = 1;
			return 0;
		} else {
			unsigned long i;
			char *endp;

			i = simple_strtoul (console_buffer, &endp, 16);
			nbytes = endp - console_buffer;
			if (nbytes)
				set_dcr (dcrn, i);
		}
	} while (nbytes);

	return 0;
}

/***************************************************/

U_BOOT_CMD(
	getdcr,	2,	1,	do_getdcr,
	"getdcr  - Get an AMCC PPC 4xx DCR's value\n",
	"dcrn - return a DCR's value.\n"
);
U_BOOT_CMD(
	setdcr,	2,	1,	do_setdcr,
	"setdcr  - Set an AMCC PPC 4xx DCR's value\n",
	"dcrn - set a DCR's value.\n"
);

#endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */
Commit	Line	Data
3863585b WD	1	/*
	2	* (C) Copyright 2001
	3	* Erik Theisen, Wave 7 Optics, etheisen@mindspring.com.
	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	/*
0c8721a4	25	* AMCC 4XX DCR Functions
3863585b WD	26	*/
	27
	28	#include <common.h>
	29	#include <config.h>
	30	#include <command.h>
3863585b	31
e82bc62c	32	#if defined(CONFIG_4xx) && (CONFIG_COMMANDS & CFG_CMD_SETGETDCR)
3863585b	33
0c8721a4 WD	34	/* =======================================================================
	35	* Interpreter command to retrieve an AMCC PPC 4xx Device Control Register
	36	* =======================================================================
3863585b WD	37	*/
	38	int do_getdcr ( cmd_tbl_t cmdtp, int flag, int argc, char argv[] )
	39	{
0c8721a4 WD	40	unsigned short dcrn; /* Device Control Register Num */
0c8721a4 WD	41	unsigned long value; /* DCR's value */
3863585b	42
0c8721a4	43	unsigned long get_dcr (unsigned short);
8bde7f77	44
0c8721a4 WD	45	/* Validate arguments */
	46	if (argc < 2) {
	47	printf ("Usage:\n%s\n", cmdtp->usage);
	48	return 1;
	49	}
3863585b	50
0c8721a4 WD	51	/* Get a DCR */
	52	dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16);
	53	value = get_dcr (dcrn);
3863585b	54
0c8721a4	55	printf ("%04x: %08lx\n", dcrn, value);
3863585b	56
0c8721a4 WD	57	return 0;
0c8721a4 WD	58	}
3863585b WD	59
	60
	61	/* ======================================================================
0c8721a4	62	* Interpreter command to set an AMCC PPC 4xx Device Control Register
3863585b WD	63	* ======================================================================
3863585b WD	64	*/
0c8721a4	65	int do_setdcr (cmd_tbl_t * cmdtp, int flag, int argc, char *argv[])
3863585b	66	{
0c8721a4 WD	67	unsigned long get_dcr (unsigned short);
	68	unsigned long set_dcr (unsigned short, unsigned long);
	69	unsigned short dcrn; /* Device Control Register Num */
	70	unsigned long value;
	71
	72	/* DCR's value */
	73	int nbytes;
	74	extern char console_buffer[];
	75
	76	/* Validate arguments */
	77	if (argc < 2) {
	78	printf ("Usage:\n%s\n", cmdtp->usage);
	79	return 1;
8bde7f77	80	}
3863585b	81
0c8721a4 WD	82	/* Set a DCR */
	83	dcrn = (unsigned short) simple_strtoul (argv[1], NULL, 16);
	84	do {
	85	value = get_dcr (dcrn);
	86	printf ("%04x: %08lx", dcrn, value);
	87	nbytes = readline (" ? ");
	88	if (nbytes == 0) {
	89	/*
	90	* <CR> pressed as only input, don't modify current
	91	* location and exit command.
	92	*/
	93	nbytes = 1;
	94	return 0;
	95	} else {
	96	unsigned long i;
	97	char *endp;
	98
	99	i = simple_strtoul (console_buffer, &endp, 16);
	100	nbytes = endp - console_buffer;
	101	if (nbytes)
	102	set_dcr (dcrn, i);
	103	}
	104	} while (nbytes);
	105
	106	return 0;
	107	}
3863585b	108
8bde7f77 WD	109	/***************************************************/
8bde7f77 WD	110
0d498393 WD	111	U_BOOT_CMD(
0d498393 WD	112	getdcr, 2, 1, do_getdcr,
0c8721a4	113	"getdcr - Get an AMCC PPC 4xx DCR's value\n",
8bde7f77 WD	114	"dcrn - return a DCR's value.\n"
8bde7f77 WD	115	);
0d498393 WD	116	U_BOOT_CMD(
0d498393 WD	117	setdcr, 2, 1, do_setdcr,
0c8721a4	118	"setdcr - Set an AMCC PPC 4xx DCR's value\n",
8bde7f77 WD	119	"dcrn - set a DCR's value.\n"
	120	);
	121
3863585b	122	#endif /* CONFIG_4xx & CFG_CMD_SETGETDCR */