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

/*
 * (C) Copyright 2007
 * Stefan Roese, DENX Software Engineering, sr@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#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/ppc4xx-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	*/

ulong flash_get_size(ulong base, int banknum);
void env_crc_update(void);

static u32 start_time;

int board_early_init_f(void)
{
	mtdcr(UIC0SR, 0xFFFFFFFF);	/* clear all ints */
	mtdcr(UIC0ER, 0x00000000);	/* disable all ints */
	mtdcr(UIC0CR, 0x00000000);
	mtdcr(UIC0PR, 0xFFFF7F00);	/* set int polarities */
	mtdcr(UIC0TR, 0x00000000);	/* set int trigger levels */
	mtdcr(UIC0SR, 0xFFFFFFFF);	/* clear all ints */
	mtdcr(UIC0VCR, 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 buf[64];
	int i = getenv_f("serial#", buf, sizeof(buf));

	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 (i > 0) {
		puts(", serial# ");
		puts(buf);
	}
	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;

	set_default_env("");

	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 (buf == NULL) {
		printf("ERROR: malloc() failed\n");
		return -1;
	}
	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 * const 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,
	"write board-specific values to EEPROM (ethaddr...)",
	"ethaddr eth1addr serial#\n    - write board-specific values to EEPROM"
	);

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 * const 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,
	"Check for status of SW-reset button and act accordingly",
	""
);

#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	*
1a459660	5	* SPDX-License-Identifier: GPL-2.0+
779e9751 SR	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
	10	#include <malloc.h>
	11	#include <environment.h>
	12	#include <logbuff.h>
	13	#include <post.h>
	14
	15	#include <asm/processor.h>
	16	#include <asm/io.h>
09887762	17	#include <asm/ppc4xx-gpio.h>
779e9751 SR	18
	19	DECLARE_GLOBAL_DATA_PTR;
	20
	21	#define REBOOT_MAGIC 0x07081967
	22	#define REBOOT_NOP 0x00000000
	23	#define REBOOT_DO_POST 0x00000001
	24
6d0f6bcf	25	extern flash_info_t flash_info[CONFIG_SYS_MAX_FLASH_BANKS]; /* info for FLASH chips */
779e9751 SR	26
	27	ulong flash_get_size(ulong base, int banknum);
	28	void env_crc_update(void);
779e9751 SR	29
	30	static u32 start_time;
	31
	32	int board_early_init_f(void)
	33	{
952e7760 SR	34	mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
	35	mtdcr(UIC0ER, 0x00000000); /* disable all ints */
	36	mtdcr(UIC0CR, 0x00000000);
	37	mtdcr(UIC0PR, 0xFFFF7F00); /* set int polarities */
	38	mtdcr(UIC0TR, 0x00000000); /* set int trigger levels */
	39	mtdcr(UIC0SR, 0xFFFFFFFF); /* clear all ints */
	40	mtdcr(UIC0VCR, 0x00000001); /* set vect base=0,INT0 highest priority */
779e9751 SR	41
	42	/*
	43	* Configure CPC0_PCI to enable PerWE as output
	44	*/
d1c3b275	45	mtdcr(CPC0_PCI, CPC0_PCI_SPE);
779e9751 SR	46
	47	return 0;
	48	}
	49
	50	int misc_init_r(void)
	51	{
	52	u32 pbcr;
	53	int size_val = 0;
	54	u32 post_magic;
	55	u32 post_val;
	56
6d0f6bcf JCPV	57	post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
6d0f6bcf JCPV	58	post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
779e9751 SR	59	if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST)) {
	60	/*
	61	* Set special bootline bootparameter to pass this POST boot
	62	* mode to Linux to reset the username/password
	63	*/
	64	setenv("addmisc", "setenv bootargs \\${bootargs} factory_reset=yes");
	65
	66	/*
	67	* Normally don't run POST tests, only when enabled
	68	* via the sw-reset button. So disable further tests
	69	* upon next bootup here.
	70	*/
6d0f6bcf	71	out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_NOP);
779e9751 SR	72	} else {
	73	/*
	74	* Only run POST when initiated via the sw-reset button mechanism
	75	*/
	76	post_word_store(0);
	77	}
	78
	79	/*
	80	* Get current time
	81	*/
	82	start_time = get_timer(0);
	83
	84	/*
	85	* FLASH stuff...
	86	*/
	87
	88	/* Re-do sizing to get full correct info */
	89
	90	/* adjust flash start and offset */
d1c3b275	91	mfebc(PB0CR, pbcr);
779e9751 SR	92	switch (gd->bd->bi_flashsize) {
	93	case 1 << 20:
	94	size_val = 0;
	95	break;
	96	case 2 << 20:
	97	size_val = 1;
	98	break;
	99	case 4 << 20:
	100	size_val = 2;
	101	break;
	102	case 8 << 20:
	103	size_val = 3;
	104	break;
	105	case 16 << 20:
	106	size_val = 4;
	107	break;
	108	case 32 << 20:
	109	size_val = 5;
	110	break;
	111	case 64 << 20:
	112	size_val = 6;
	113	break;
	114	case 128 << 20:
	115	size_val = 7;
	116	break;
	117	}
	118	pbcr = (pbcr & 0x0001ffff) \| gd->bd->bi_flashstart \| (size_val << 17);
d1c3b275	119	mtebc(PB0CR, pbcr);
779e9751 SR	120
	121	/*
	122	* Re-check to get correct base address
	123	*/
	124	flash_get_size(gd->bd->bi_flashstart, 0);
	125
	126	/* Monitor protection ON by default */
	127	(void)flash_protect(FLAG_PROTECT_SET,
6d0f6bcf	128	-CONFIG_SYS_MONITOR_LEN,
779e9751 SR	129	0xffffffff,
	130	&flash_info[0]);
	131
	132	/* Env protection ON by default */
	133	(void)flash_protect(FLAG_PROTECT_SET,
0e8d1586 JCPV	134	CONFIG_ENV_ADDR_REDUND,
0e8d1586 JCPV	135	CONFIG_ENV_ADDR_REDUND + 2*CONFIG_ENV_SECT_SIZE - 1,
779e9751 SR	136	&flash_info[0]);
	137
	138	return 0;
	139	}
	140
	141	/*
	142	* Check Board Identity:
	143	*/
	144	int checkboard(void)
	145	{
f0c0b3a9 WD	146	char buf[64];
f0c0b3a9 WD	147	int i = getenv_f("serial#", buf, sizeof(buf));
779e9751 SR	148
	149	puts("Board: Zeus-");
	150
6d0f6bcf	151	if (in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_ZEUS_PE))
779e9751 SR	152	puts("PE");
	153	else
	154	puts("CE");
	155
	156	puts(" of BulletEndPoint");
	157
f0c0b3a9	158	if (i > 0) {
779e9751	159	puts(", serial# ");
f0c0b3a9	160	puts(buf);
779e9751 SR	161	}
	162	putc('\n');
	163
	164	/* both LED's off */
6d0f6bcf JCPV	165	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
6d0f6bcf JCPV	166	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
779e9751 SR	167	udelay(10000);
779e9751 SR	168	/* and on again */
6d0f6bcf JCPV	169	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 1);
6d0f6bcf JCPV	170	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 1);
779e9751 SR	171
	172	return (0);
	173	}
	174
779e9751 SR	175	static int default_env_var(char buf, char var)
	176	{
	177	char *ptr;
	178	char *val;
	179
	180	/*
	181	* Find env variable
	182	*/
	183	ptr = strstr(buf + 4, var);
	184	if (ptr == NULL) {
	185	printf("ERROR: %s not found!\n", var);
	186	return -1;
	187	}
	188	ptr += strlen(var) + 1;
	189
	190	/*
	191	* Now the ethaddr needs to be updated in the "normal"
	192	* environment storage -> redundant flash.
	193	*/
	194	val = ptr;
	195	setenv(var, val);
	196	printf("Updated %s from eeprom to %s!\n", var, val);
	197
	198	return 0;
	199	}
	200
	201	static int restore_default(void)
	202	{
	203	char *buf;
	204	char *buf_save;
	205	u32 crc;
	206
ea882baf	207	set_default_env("");
779e9751	208
779e9751 SR	209	gd->env_valid = 1;
	210
	211	/*
	212	* Read board specific values from I2C EEPROM
	213	* and set env variables accordingly
	214	* -> ethaddr, eth1addr, serial#
	215	*/
	216	buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
ea882baf WD	217	if (buf == NULL) {
	218	printf("ERROR: malloc() failed\n");
	219	return -1;
	220	}
779e9751 SR	221	if (eeprom_read(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
	222	(u8 *)buf, FACTORY_RESET_ENV_SIZE)) {
	223	puts("\nError reading EEPROM!\n");
	224	} else {
	225	crc = crc32(0, (u8 *)(buf + 4), FACTORY_RESET_ENV_SIZE - 4);
	226	if (crc != (u32 )buf) {
b002144e	227	printf("ERROR: crc mismatch %08x %08x\n", crc, (u32 )buf);
779e9751 SR	228	return -1;
	229	}
	230
	231	default_env_var(buf, "ethaddr");
	232	buf += 8 + 18;
	233	default_env_var(buf, "eth1addr");
	234	buf += 9 + 18;
	235	default_env_var(buf, "serial#");
	236	}
	237
	238	/*
	239	* Finally save updated env variables back to flash
	240	*/
	241	saveenv();
	242
	243	free(buf_save);
	244
	245	return 0;
	246	}
	247
54841ab5	248	int do_set_default(cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
779e9751 SR	249	{
	250	char *buf;
	251	char *buf_save;
	252	char str[32];
	253	u32 crc;
	254	char var[32];
	255
	256	if (argc < 4) {
	257	puts("ERROR!\n");
	258	return -1;
	259	}
	260
	261	buf = buf_save = malloc(FACTORY_RESET_ENV_SIZE);
	262	memset(buf, 0, FACTORY_RESET_ENV_SIZE);
	263
	264	strcpy(var, "ethaddr");
	265	printf("Setting %s to %s\n", var, argv[1]);
	266	sprintf(str, "%s=%s", var, argv[1]);
	267	strcpy(buf + 4, str);
	268	buf += strlen(str) + 1;
	269
	270	strcpy(var, "eth1addr");
	271	printf("Setting %s to %s\n", var, argv[2]);
	272	sprintf(str, "%s=%s", var, argv[2]);
	273	strcpy(buf + 4, str);
	274	buf += strlen(str) + 1;
	275
	276	strcpy(var, "serial#");
	277	printf("Setting %s to %s\n", var, argv[3]);
	278	sprintf(str, "%s=%s", var, argv[3]);
	279	strcpy(buf + 4, str);
	280
	281	crc = crc32(0, (u8 *)(buf_save + 4), FACTORY_RESET_ENV_SIZE - 4);
	282	(u32 )buf_save = crc;
	283
	284	if (eeprom_write(FACTORY_RESET_I2C_EEPROM, FACTORY_RESET_ENV_OFFS,
	285	(u8 *)buf_save, FACTORY_RESET_ENV_SIZE)) {
	286	puts("\nError writing EEPROM!\n");
	287	return -1;
	288	}
	289
	290	free(buf_save);
	291
	292	return 0;
	293	}
	294
	295	U_BOOT_CMD(
	296	setdef, 4, 1, do_set_default,
2fb2604d	297	"write board-specific values to EEPROM (ethaddr...)",
a89c33db	298	"ethaddr eth1addr serial#\n - write board-specific values to EEPROM"
779e9751 SR	299	);
	300
	301	static inline int sw_reset_pressed(void)
	302	{
6d0f6bcf	303	return !(in_be32((void *)GPIO0_IR) & GPIO_VAL(CONFIG_SYS_GPIO_SW_RESET));
779e9751 SR	304	}
779e9751 SR	305
54841ab5	306	int do_chkreset(cmd_tbl_t* cmdtp, int flag, int argc, char * const argv[])
779e9751 SR	307	{
	308	int delta;
	309	int count = 0;
	310	int post = 0;
	311	int factory_reset = 0;
	312
	313	if (!sw_reset_pressed()) {
	314	printf("SW-Reset already high (Button released)\n");
	315	printf("-> No action taken!\n");
	316	return 0;
	317	}
	318
	319	printf("Waiting for SW-Reset button to be released.");
	320
	321	while (1) {
	322	delta = get_timer(start_time);
	323	if (!sw_reset_pressed())
	324	break;
	325
6d0f6bcf	326	if ((delta > CONFIG_SYS_TIME_POST) && !post) {
779e9751	327	printf("\nWhen released now, POST tests will be started.");
6d0f6bcf	328	gpio_write_bit(CONFIG_SYS_GPIO_LED_GREEN, 0);
779e9751 SR	329	post = 1;
	330	}
	331
6d0f6bcf	332	if ((delta > CONFIG_SYS_TIME_FACTORY_RESET) && !factory_reset) {
779e9751 SR	333	printf("\nWhen released now, factory default values"
779e9751 SR	334	" will be restored.");
6d0f6bcf	335	gpio_write_bit(CONFIG_SYS_GPIO_LED_RED, 0);
779e9751 SR	336	factory_reset = 1;
	337	}
	338
	339	udelay(1000);
	340	if (!(count++ % 1000))
	341	printf(".");
	342	}
	343
	344
	345	printf("\nSW-Reset Button released after %d milli-seconds!\n", delta);
	346
6d0f6bcf	347	if (delta > CONFIG_SYS_TIME_FACTORY_RESET) {
779e9751 SR	348	printf("Starting factory reset value restoration...\n");
	349
	350	/*
	351	* Restore default setting
	352	*/
	353	restore_default();
	354
	355	/*
	356	* Reset the board for default to become valid
	357	*/
	358	do_reset(NULL, 0, 0, NULL);
	359
	360	return 0;
	361	}
	362
6d0f6bcf	363	if (delta > CONFIG_SYS_TIME_POST) {
779e9751 SR	364	printf("Starting POST configuration...\n");
	365
	366	/*
	367	* Enable POST upon next bootup
	368	*/
6d0f6bcf JCPV	369	out_be32((void *)CONFIG_SYS_POST_MAGIC, REBOOT_MAGIC);
6d0f6bcf JCPV	370	out_be32((void *)CONFIG_SYS_POST_VAL, REBOOT_DO_POST);
779e9751 SR	371	post_bootmode_init();
	372
	373	/*
	374	* Reset the logbuffer for a clean start
	375	*/
	376	logbuff_reset();
	377
	378	do_reset(NULL, 0, 0, NULL);
	379
	380	return 0;
	381	}
	382
	383	return 0;
	384	}
	385
	386	U_BOOT_CMD (
	387	chkreset, 1, 1, do_chkreset,
2fb2604d	388	"Check for status of SW-reset button and act accordingly",
a89c33db	389	""
779e9751 SR	390	);
	391
	392	#if defined(CONFIG_POST)
	393	/*
	394	* Returns 1 if keys pressed to start the power-on long-running tests
	395	* Called from board_init_f().
	396	*/
	397	int post_hotkeys_pressed(void)
	398	{
	399	u32 post_magic;
	400	u32 post_val;
	401
6d0f6bcf JCPV	402	post_magic = in_be32((void *)CONFIG_SYS_POST_MAGIC);
6d0f6bcf JCPV	403	post_val = in_be32((void *)CONFIG_SYS_POST_VAL);
779e9751 SR	404
	405	if ((post_magic == REBOOT_MAGIC) && (post_val == REBOOT_DO_POST))
	406	return 1;
	407	else
	408	return 0;
	409	}
	410	#endif /* CONFIG_POST */