[people/ms/u-boot.git] / board / zeus / zeus.c

/*
 * (C) Copyright 2007
 * Stefan Roese, DENX Software Engineering, sr@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
 */

#include <common.h>
#include <command.h>
#include <malloc.h>
#include <environment.h>
#include <logbuff.h>
#include <post.h>

#include <asm/processor.h>
#include <asm/io.h>
#include <asm/gpio.h>

DECLARE_GLOBAL_DATA_PTR;

#define REBOOT_MAGIC	0x07081967
#define REBOOT_NOP	0x00000000
#define REBOOT_DO_POST	0x00000001

extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips	*/
extern env_t *env_ptr;
extern uchar default_environment[];

ulong flash_get_size(ulong base, int banknum);
void env_crc_update(void);
int do_reset (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]);

static u32 start_time;

int board_early_init_f(void)
{
	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
	mtdcr(uicer, 0x00000000);	/* disable all ints */
	mtdcr(uiccr, 0x00000000);
	mtdcr(uicpr, 0xFFFF7F00);	/* set int polarities */
	mtdcr(uictr, 0x00000000);	/* set int trigger levels */
	mtdcr(uicsr, 0xFFFFFFFF);	/* clear all ints */
	mtdcr(uicvcr, 0x00000001);	/* set vect base=0,INT0 highest priority */

	/*
	 * Configure CPC0_PCI to enable PerWE as output
	 */
	mtdcr(cpc0_pci, CPC0_PCI_SPE);

	return 0;
}

int misc_init_r(void)
{
	u32 pbcr;
	int size_val = 0;
	u32 post_magic;
	u32 post_val;

	post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
	post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
	if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST)) {
		/*
		 * Set special bootline bootparameter to pass this POST boot
		 * mode to Linux to reset the username/password
		 */
		setenv("addmisc", "setenv bootargs \\${bootargs} factory_reset=yes");

		/*
		 * Normally don't run POST tests, only when enabled
		 * via the sw-reset button. So disable further tests
		 * upon next bootup here.
		 */
		out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_NOP);
	} else {
		/*
		 * Only run POST when initiated via the sw-reset button mechanism
		 */
		post_word_store(0);
	}

	/*
	 * Get current time
	 */
	start_time = get_timer(0);

	/*
	 * FLASH stuff...
	 */

	/* Re-do sizing to get full correct info */

	/* adjust flash start and offset */
	mfebc(pb0cr, pbcr);
	switch (gd->bd->bi_flashsize) {
	case 1 << 20:
		size_val = 0;
		break;
	case 2 << 20:
		size_val = 1;
		break;
	case 4 << 20:
		size_val = 2;
		break;
	case 8 << 20:
		size_val = 3;
		break;
	case 16 << 20:
		size_val = 4;
		break;
	case 32 << 20:
		size_val = 5;
		break;
	case 64 << 20:
		size_val = 6;
		break;
	case 128 << 20:
		size_val = 7;
		break;
	}
	pbcr = (pbcr & 0x0001ffff) | gd->bd->bi_flashstart | (size_val << 17);
	mtebc(pb0cr, pbcr);

	/*
	 * Re-check to get correct base address
	 */
	flash_get_size(gd->bd->bi_flashstart, 0);

	/* Monitor protection ON by default */
	(void)flash_protect(FLAG_PROTECT_SET,
			    -CONFIG_SYS_MONITOR_LEN,
			    0xffffffff,
			    &flash_info[0]);

	/* Env protection ON by default */
	(void)flash_protect(FLAG_PROTECT_SET,
			    CONFIG_ENV_ADDR_REDUND,
			    CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
			    &flash_info[0]);

	return 0;
}

/*
 * Check Board Identity:
 */
int checkboard(void)
{
	char *s = getenv("serial#");

	puts("Board: Zeus-");

	if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_ZEUS_PE))
		puts("PE");
	else
		puts("CE");

	puts(" of BulletEndPoint");

	if (s != NULL) {
		puts(", serial# ");
		puts(s);
	}
	putc('\n');

	/* both LED's off */
	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
	udelay(10000);
	/* and on again */
	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 1);
	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 1);

	return (0);
}

static int default_env_var(char *buf, char *var)
{
	char *ptr;
	char *val;

	/*
	 * Find env variable
	 */
	ptr = strstr(buf + 4, var);
	if (ptr == NULL) {
		printf("ERROR: %s not found!\n", var);
		return -1;
	}
	ptr += strlen(var) + 1;

	/*
	 * Now the ethaddr needs to be updated in the "normal"
	 * environment storage -> redundant flash.
	 */
	val = ptr;
	setenv(var, val);
	printf("Updated %s from eeprom to %s!\n", var, val);

	return 0;
}

static int restore_default(void)
{
	char *buf;
	char *buf_save;
	u32 crc;

	/*
	 * Unprotect and erase environment area
	 */
	flash_protect(FLAG_PROTECT_CLEAR,
		      CONFIG_ENV_ADDR_REDUND,
		      CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
		      &flash_info[0]);

	flash_sect_erase(CONFIG_ENV_ADDR_REDUND,
			 CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1);

	/*
	 * Now restore default environment from U-Boot image
	 * -> ipaddr, serverip...
	 */
	memset(env_ptr, 0, sizeof(env_t));
	memcpy(env_ptr->data, default_environment, ENV_SIZE);
#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
	env_ptr->flags = 0xFF;
#endif
	env_crc_update();
	gd->env_valid = 1;

	/*
	 * Read board specific values from I2C EEPROM
	 * and set env variables accordingly
	 * -> ethaddr, eth1addr, serial#
	 */
	buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
	if (eeprom_read(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
			(u8 *)buf, FACTORY_RESET_ENV_SIZE)) {
		puts("\nError reading EEPROM!\n");
	} else {
		crc = crc32(0, (u8 *)(buf + 4), FACTORY_RESET_ENV_SIZE - 4);
		if (crc != *(u32 *)buf) {
			printf("ERROR: crc mismatch %08x %08x\n", crc, *(u32 *)buf);
			return -1;
		}

		default_env_var(buf, "ethaddr");
		buf += 8 + 18;
		default_env_var(buf, "eth1addr");
		buf += 9 + 18;
		default_env_var(buf, "serial#");
	}

	/*
	 * Finally save updated env variables back to flash
	 */
	saveenv();

	free(buf_save);

	return 0;
}

int do_set_default(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
	char *buf;
	char *buf_save;
	char str[32];
	u32 crc;
	char var[32];

	if (argc < 4) {
		puts("ERROR!\n");
		return -1;
	}

	buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
	memset(buf, 0, FACTORY_RESET_ENV_SIZE);

	strcpy(var, "ethaddr");
	printf("Setting %s to %s\n", var, argv[1]);
	sprintf(str, "%s=%s", var, argv[1]);
	strcpy(buf + 4, str);
	buf += strlen(str) + 1;

	strcpy(var, "eth1addr");
	printf("Setting %s to %s\n", var, argv[2]);
	sprintf(str, "%s=%s", var, argv[2]);
	strcpy(buf + 4, str);
	buf += strlen(str) + 1;

	strcpy(var, "serial#");
	printf("Setting %s to %s\n", var, argv[3]);
	sprintf(str, "%s=%s", var, argv[3]);
	strcpy(buf + 4, str);

	crc = crc32(0, (u8 *)(buf_save + 4), FACTORY_RESET_ENV_SIZE - 4);
	*(u32 *)buf_save = crc;

	if (eeprom_write(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
			 (u8 *)buf_save, FACTORY_RESET_ENV_SIZE)) {
		puts("\nError writing EEPROM!\n");
		return -1;
	}

	free(buf_save);

	return 0;
}

U_BOOT_CMD(
	setdef,	4,	1,	do_set_default,
	"setdef  - write board-specific values to EEPROM (ethaddr...)\n",
	"ethaddr eth1addr serial#\n    - write board-specific values to EEPROM\n"
	);

static inline int sw_reset_pressed(void)
{
	return !(in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_SW_RESET));
}

int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
{
	int delta;
	int count = 0;
	int post = 0;
	int factory_reset = 0;

	if (!sw_reset_pressed()) {
		printf("SW-Reset already high (Button released)\n");
		printf("-> No action taken!\n");
		return 0;
	}

	printf("Waiting for SW-Reset button to be released.");

	while (1) {
		delta = get_timer(start_time);
		if (!sw_reset_pressed())
			break;

		if ((delta > CONFIG_SYS_TIME_POST) && !post) {
			printf("\nWhen released now, POST tests will be started.");
			gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
			post = 1;
		}

		if ((delta > CONFIG_SYS_TIME_FACTORY_RESET) && !factory_reset) {
			printf("\nWhen released now, factory default values"
			       " will be restored.");
			gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
			factory_reset = 1;
		}

		udelay(1000);
		if (!(count++ % 1000))
			printf(".");
	}


	printf("\nSW-Reset Button released after %d milli-seconds!\n", delta);

	if (delta > CONFIG_SYS_TIME_FACTORY_RESET) {
		printf("Starting factory reset value restoration...\n");

		/*
		 * Restore default setting
		 */
		restore_default();

		/*
		 * Reset the board for default to become valid
		 */
		do_reset(NULL, 0, 0, NULL);

		return 0;
	}

	if (delta > CONFIG_SYS_TIME_POST) {
		printf("Starting POST configuration...\n");

		/*
		 * Enable POST upon next bootup
		 */
		out_be32((void *)CONFIG_SYS_POST_MAGIC, REBOOT_MAGIC);
		out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_DO_POST);
		post_bootmode_init();

		/*
		 * Reset the logbuffer for a clean start
		 */
		logbuff_reset();

		do_reset(NULL, 0, 0, NULL);

		return 0;
	}

	return 0;
}

U_BOOT_CMD (
	chkreset, 1, 1, do_chkreset,
	"chkreset- Check for status of SW-reset button and act accordingly\n",
	NULL
);

#if defined(CONFIG_POST)
/*
 * Returns 1 if keys pressed to start the power-on long-running tests
 * Called from board_init_f().
 */
int post_hotkeys_pressed(void)
{
	u32 post_magic;
	u32 post_val;

	post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
	post_val = in_be32((void *)CONFIG_SYS_POST_VAL);

	if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST))
		return 1;
	else
		return 0;
}
#endif /* CONFIG_POST */
Commit	Line	Data
779e9751 SR	1	/*
	2	* (C) Copyright 2007
	3	* Stefan Roese, DENX Software Engineering, sr@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	#include <common.h>
	25	#include <command.h>
	26	#include <malloc.h>
	27	#include <environment.h>
	28	#include <logbuff.h>
	29	#include <post.h>
	30
	31	#include <asm/processor.h>
	32	#include <asm/io.h>
	33	#include <asm/gpio.h>
	34
	35	DECLARE_GLOBAL_DATA_PTR;
	36
	37	#define REBOOT_MAGIC 0x07081967
	38	#define REBOOT_NOP 0x00000000
	39	#define REBOOT_DO_POST 0x00000001
	40
6d0f6bcf	41	extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
779e9751 SR	42	extern env_t *env_ptr;
	43	extern uchar default_environment[];
	44
	45	ulong flash_get_size(ulong base, int banknum);
	46	void env_crc_update(void);
	47	int do_reset (cmd_tbl_t cmdtp, int flag, int argc, char argv[]);
	48
	49	static u32 start_time;
	50
	51	int board_early_init_f(void)
	52	{
	53	mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
	54	mtdcr(uicer, 0x00000000); /* disable all ints */
	55	mtdcr(uiccr, 0x00000000);
	56	mtdcr(uicpr, 0xFFFF7F00); /* set int polarities */
	57	mtdcr(uictr, 0x00000000); /* set int trigger levels */
	58	mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */
	59	mtdcr(uicvcr, 0x00000001); /* set vect base=0,INT0 highest priority */
	60
	61	/*
	62	* Configure CPC0_PCI to enable PerWE as output
	63	*/
	64	mtdcr(cpc0_pci, CPC0_PCI_SPE);
	65
	66	return 0;
	67	}
	68
	69	int misc_init_r(void)
	70	{
	71	u32 pbcr;
	72	int size_val = 0;
	73	u32 post_magic;
	74	u32 post_val;
	75
6d0f6bcf JCPV	76	post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
6d0f6bcf JCPV	77	post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
779e9751 SR	78	if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST)) {
	79	/*
	80	* Set special bootline bootparameter to pass this POST boot
	81	* mode to Linux to reset the username/password
	82	*/
	83	setenv("addmisc", "setenv bootargs \\${bootargs} factory_reset=yes");
	84
	85	/*
	86	* Normally don't run POST tests, only when enabled
	87	* via the sw-reset button. So disable further tests
	88	* upon next bootup here.
	89	*/
6d0f6bcf	90	out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_NOP);
779e9751 SR	91	} else {
	92	/*
	93	* Only run POST when initiated via the sw-reset button mechanism
	94	*/
	95	post_word_store(0);
	96	}
	97
	98	/*
	99	* Get current time
	100	*/
	101	start_time = get_timer(0);
	102
	103	/*
	104	* FLASH stuff...
	105	*/
	106
	107	/* Re-do sizing to get full correct info */
	108
	109	/* adjust flash start and offset */
	110	mfebc(pb0cr, pbcr);
	111	switch (gd->bd->bi_flashsize) {
	112	case 1 << 20:
	113	size_val = 0;
	114	break;
	115	case 2 << 20:
	116	size_val = 1;
	117	break;
	118	case 4 << 20:
	119	size_val = 2;
	120	break;
	121	case 8 << 20:
	122	size_val = 3;
	123	break;
	124	case 16 << 20:
	125	size_val = 4;
	126	break;
	127	case 32 << 20:
	128	size_val = 5;
	129	break;
	130	case 64 << 20:
	131	size_val = 6;
	132	break;
	133	case 128 << 20:
	134	size_val = 7;
	135	break;
	136	}
	137	pbcr = (pbcr & 0x0001ffff) \| gd->bd->bi_flashstart \| (size_val << 17);
	138	mtebc(pb0cr, pbcr);
	139
	140	/*
	141	* Re-check to get correct base address
	142	*/
	143	flash_get_size(gd->bd->bi_flashstart, 0);
	144
	145	/* Monitor protection ON by default */
	146	(void)flash_protect(FLAG_PROTECT_SET,
6d0f6bcf	147	-CONFIG_SYS_MONITOR_LEN,
779e9751 SR	148	0xffffffff,
	149	&flash_info[0]);
	150
	151	/* Env protection ON by default */
	152	(void)flash_protect(FLAG_PROTECT_SET,
0e8d1586 JCPV	153	CONFIG_ENV_ADDR_REDUND,
0e8d1586 JCPV	154	CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
779e9751 SR	155	&flash_info[0]);
	156
	157	return 0;
	158	}
	159
	160	/*
	161	* Check Board Identity:
	162	*/
	163	int checkboard(void)
	164	{
	165	char *s = getenv("serial#");
	166
	167	puts("Board: Zeus-");
	168
6d0f6bcf	169	if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_ZEUS_PE))
779e9751 SR	170	puts("PE");
	171	else
	172	puts("CE");
	173
	174	puts(" of BulletEndPoint");
	175
	176	if (s != NULL) {
	177	puts(", serial# ");
	178	puts(s);
	179	}
	180	putc('\n');
	181
	182	/* both LED's off */
6d0f6bcf JCPV	183	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
6d0f6bcf JCPV	184	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
779e9751 SR	185	udelay(10000);
779e9751 SR	186	/* and on again */
6d0f6bcf JCPV	187	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 1);
6d0f6bcf JCPV	188	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 1);
779e9751 SR	189
	190	return (0);
	191	}
	192
779e9751 SR	193	static int default_env_var(char buf, char var)
	194	{
	195	char *ptr;
	196	char *val;
	197
	198	/*
	199	* Find env variable
	200	*/
	201	ptr = strstr(buf + 4, var);
	202	if (ptr == NULL) {
	203	printf("ERROR: %s not found!\n", var);
	204	return -1;
	205	}
	206	ptr += strlen(var) + 1;
	207
	208	/*
	209	* Now the ethaddr needs to be updated in the "normal"
	210	* environment storage -> redundant flash.
	211	*/
	212	val = ptr;
	213	setenv(var, val);
	214	printf("Updated %s from eeprom to %s!\n", var, val);
	215
	216	return 0;
	217	}
	218
	219	static int restore_default(void)
	220	{
	221	char *buf;
	222	char *buf_save;
	223	u32 crc;
	224
	225	/*
	226	* Unprotect and erase environment area
	227	*/
	228	flash_protect(FLAG_PROTECT_CLEAR,
0e8d1586 JCPV	229	CONFIG_ENV_ADDR_REDUND,
0e8d1586 JCPV	230	CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
779e9751 SR	231	&flash_info[0]);
779e9751 SR	232
0e8d1586 JCPV	233	flash_sect_erase(CONFIG_ENV_ADDR_REDUND,
0e8d1586 JCPV	234	CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1);
779e9751 SR	235
	236	/*
	237	* Now restore default environment from U-Boot image
	238	* -> ipaddr, serverip...
	239	*/
	240	memset(env_ptr, 0, sizeof(env_t));
	241	memcpy(env_ptr->data, default_environment, ENV_SIZE);
6d0f6bcf	242	#ifdef CONFIG_SYS_REDUNDAND_ENVIRONMENT
779e9751 SR	243	env_ptr->flags = 0xFF;
	244	#endif
	245	env_crc_update();
	246	gd->env_valid = 1;
	247
	248	/*
	249	* Read board specific values from I2C EEPROM
	250	* and set env variables accordingly
	251	* -> ethaddr, eth1addr, serial#
	252	*/
	253	buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
	254	if (eeprom_read(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
	255	(u8 *)buf, FACTORY_RESET_ENV_SIZE)) {
	256	puts("\nError reading EEPROM!\n");
	257	} else {
	258	crc = crc32(0, (u8 *)(buf + 4), FACTORY_RESET_ENV_SIZE - 4);
	259	if (crc != (u32 )buf) {
b002144e	260	printf("ERROR: crc mismatch %08x %08x\n", crc, (u32 )buf);
779e9751 SR	261	return -1;
	262	}
	263
	264	default_env_var(buf, "ethaddr");
	265	buf += 8 + 18;
	266	default_env_var(buf, "eth1addr");
	267	buf += 9 + 18;
	268	default_env_var(buf, "serial#");
	269	}
	270
	271	/*
	272	* Finally save updated env variables back to flash
	273	*/
	274	saveenv();
	275
	276	free(buf_save);
	277
	278	return 0;
	279	}
	280
	281	int do_set_default(cmd_tbl_t cmdtp, int flag, int argc, char argv[])
	282	{
	283	char *buf;
	284	char *buf_save;
	285	char str[32];
	286	u32 crc;
	287	char var[32];
	288
	289	if (argc < 4) {
	290	puts("ERROR!\n");
	291	return -1;
	292	}
	293
	294	buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
	295	memset(buf, 0, FACTORY_RESET_ENV_SIZE);
	296
	297	strcpy(var, "ethaddr");
	298	printf("Setting %s to %s\n", var, argv[1]);
	299	sprintf(str, "%s=%s", var, argv[1]);
	300	strcpy(buf + 4, str);
	301	buf += strlen(str) + 1;
	302
	303	strcpy(var, "eth1addr");
	304	printf("Setting %s to %s\n", var, argv[2]);
	305	sprintf(str, "%s=%s", var, argv[2]);
	306	strcpy(buf + 4, str);
	307	buf += strlen(str) + 1;
	308
	309	strcpy(var, "serial#");
	310	printf("Setting %s to %s\n", var, argv[3]);
	311	sprintf(str, "%s=%s", var, argv[3]);
	312	strcpy(buf + 4, str);
	313
	314	crc = crc32(0, (u8 *)(buf_save + 4), FACTORY_RESET_ENV_SIZE - 4);
	315	(u32 )buf_save = crc;
	316
	317	if (eeprom_write(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
	318	(u8 *)buf_save, FACTORY_RESET_ENV_SIZE)) {
	319	puts("\nError writing EEPROM!\n");
	320	return -1;
	321	}
	322
	323	free(buf_save);
	324
325	return 0;
326	}
327
328	U_BOOT_CMD(
329	setdef, 4, 1, do_set_default,
330	"setdef - write board-specific values to EEPROM (ethaddr...)\n",
331	"ethaddr eth1addr serial#\n - write board-specific values to EEPROM\n"
332	);
333
334	static inline int sw_reset_pressed(void)
335	{
6d0f6bcf	336	return !(in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_SW_RESET));
779e9751 SR	337	}
	338
	339	int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char* argv[])
	340	{
	341	int delta;
	342	int count = 0;
	343	int post = 0;
	344	int factory_reset = 0;
	345
	346	if (!sw_reset_pressed()) {
	347	printf("SW-Reset already high (Button released)\n");
	348	printf("-> No action taken!\n");
	349	return 0;
	350	}
	351
	352	printf("Waiting for SW-Reset button to be released.");
	353
	354	while (1) {
	355	delta = get_timer(start_time);
	356	if (!sw_reset_pressed())
	357	break;
	358
6d0f6bcf	359	if ((delta > CONFIG_SYS_TIME_POST) && !post) {
779e9751	360	printf("\nWhen released now, POST tests will be started.");
6d0f6bcf	361	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
779e9751 SR	362	post = 1;
	363	}
	364
6d0f6bcf	365	if ((delta > CONFIG_SYS_TIME_FACTORY_RESET) && !factory_reset) {
779e9751 SR	366	printf("\nWhen released now, factory default values"
779e9751 SR	367	" will be restored.");
6d0f6bcf	368	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
779e9751 SR	369	factory_reset = 1;
	370	}
	371
	372	udelay(1000);
	373	if (!(count++ % 1000))
	374	printf(".");
	375	}
	376
	377
	378	printf("\nSW-Reset Button released after %d milli-seconds!\n", delta);
	379
6d0f6bcf	380	if (delta > CONFIG_SYS_TIME_FACTORY_RESET) {
779e9751 SR	381	printf("Starting factory reset value restoration...\n");
	382
	383	/*
	384	* Restore default setting
	385	*/
	386	restore_default();
	387
	388	/*
	389	* Reset the board for default to become valid
	390	*/
	391	do_reset(NULL, 0, 0, NULL);
	392
	393	return 0;
	394	}
	395
6d0f6bcf	396	if (delta > CONFIG_SYS_TIME_POST) {
779e9751 SR	397	printf("Starting POST configuration...\n");
	398
	399	/*
	400	* Enable POST upon next bootup
	401	*/
6d0f6bcf JCPV	402	out_be32((void *)CONFIG_SYS_POST_MAGIC, REBOOT_MAGIC);
6d0f6bcf JCPV	403	out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_DO_POST);
779e9751 SR	404	post_bootmode_init();
	405
	406	/*
	407	* Reset the logbuffer for a clean start
	408	*/
	409	logbuff_reset();
	410
	411	do_reset(NULL, 0, 0, NULL);
	412
	413	return 0;
	414	}
	415
	416	return 0;
	417	}
	418
	419	U_BOOT_CMD (
	420	chkreset, 1, 1, do_chkreset,
	421	"chkreset- Check for status of SW-reset button and act accordingly\n",
	422	NULL
	423	);
	424
	425	#if defined(CONFIG_POST)
	426	/*
	427	* Returns 1 if keys pressed to start the power-on long-running tests
	428	* Called from board_init_f().
	429	*/
	430	int post_hotkeys_pressed(void)
	431	{
	432	u32 post_magic;
	433	u32 post_val;
	434
6d0f6bcf JCPV	435	post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
6d0f6bcf JCPV	436	post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
779e9751 SR	437
	438	if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST))
	439	return 1;
	440	else
	441	return 0;
	442	}
	443	#endif /* CONFIG_POST */