[u-boot.git] / env / sf.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * (C) Copyright 2000-2010
 * Wolfgang Denk, DENX Software Engineering, [email protected].
 *
 * (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
 * Andreas Heppel <[email protected]>
 *
 * (C) Copyright 2008 Atmel Corporation
 */
#include <common.h>
#include <dm.h>
#include <environment.h>
#include <malloc.h>
#include <spi.h>
#include <spi_flash.h>
#include <search.h>
#include <errno.h>
#include <dm/device-internal.h>

#ifndef CONFIG_ENV_SPI_BUS
# define CONFIG_ENV_SPI_BUS	CONFIG_SF_DEFAULT_BUS
#endif
#ifndef CONFIG_ENV_SPI_CS
# define CONFIG_ENV_SPI_CS	CONFIG_SF_DEFAULT_CS
#endif
#ifndef CONFIG_ENV_SPI_MAX_HZ
# define CONFIG_ENV_SPI_MAX_HZ	CONFIG_SF_DEFAULT_SPEED
#endif
#ifndef CONFIG_ENV_SPI_MODE
# define CONFIG_ENV_SPI_MODE	CONFIG_SF_DEFAULT_MODE
#endif

#ifndef CONFIG_SPL_BUILD
#define CMD_SAVEENV
#define INITENV
#endif

#ifdef CONFIG_ENV_OFFSET_REDUND
#ifdef CMD_SAVEENV
static ulong env_offset		= CONFIG_ENV_OFFSET;
static ulong env_new_offset	= CONFIG_ENV_OFFSET_REDUND;
#endif

#define ACTIVE_FLAG	1
#define OBSOLETE_FLAG	0
#endif /* CONFIG_ENV_OFFSET_REDUND */

DECLARE_GLOBAL_DATA_PTR;

static struct spi_flash *env_flash;

static int setup_flash_device(void)
{
#ifdef CONFIG_DM_SPI_FLASH
	struct udevice *new;
	int	ret;

	/* speed and mode will be read from DT */
	ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
				     0, 0, &new);
	if (ret) {
		set_default_env("spi_flash_probe_bus_cs() failed", 0);
		return ret;
	}

	env_flash = dev_get_uclass_priv(new);
#else

	if (!env_flash) {
		env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
			CONFIG_ENV_SPI_CS,
			CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
		if (!env_flash) {
			set_default_env("spi_flash_probe() failed", 0);
			return -EIO;
		}
	}
#endif
	return 0;
}

#if defined(CONFIG_ENV_OFFSET_REDUND)
#ifdef CMD_SAVEENV
static int env_sf_save(void)
{
	env_t	env_new;
	char	*saved_buffer = NULL, flag = OBSOLETE_FLAG;
	u32	saved_size, saved_offset, sector;
	int	ret;

	ret = setup_flash_device();
	if (ret)
		return ret;

	ret = env_export(&env_new);
	if (ret)
		return -EIO;
	env_new.flags	= ACTIVE_FLAG;

	if (gd->env_valid == ENV_VALID) {
		env_new_offset = CONFIG_ENV_OFFSET_REDUND;
		env_offset = CONFIG_ENV_OFFSET;
	} else {
		env_new_offset = CONFIG_ENV_OFFSET;
		env_offset = CONFIG_ENV_OFFSET_REDUND;
	}

	/* Is the sector larger than the env (i.e. embedded) */
	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
		saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
		saved_offset = env_new_offset + CONFIG_ENV_SIZE;
		saved_buffer = memalign(ARCH_DMA_MINALIGN, saved_size);
		if (!saved_buffer) {
			ret = -ENOMEM;
			goto done;
		}
		ret = spi_flash_read(env_flash, saved_offset,
					saved_size, saved_buffer);
		if (ret)
			goto done;
	}

	sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);

	puts("Erasing SPI flash...");
	ret = spi_flash_erase(env_flash, env_new_offset,
				sector * CONFIG_ENV_SECT_SIZE);
	if (ret)
		goto done;

	puts("Writing to SPI flash...");

	ret = spi_flash_write(env_flash, env_new_offset,
		CONFIG_ENV_SIZE, &env_new);
	if (ret)
		goto done;

	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
		ret = spi_flash_write(env_flash, saved_offset,
					saved_size, saved_buffer);
		if (ret)
			goto done;
	}

	ret = spi_flash_write(env_flash, env_offset + offsetof(env_t, flags),
				sizeof(env_new.flags), &flag);
	if (ret)
		goto done;

	puts("done\n");

	gd->env_valid = gd->env_valid == ENV_REDUND ? ENV_VALID : ENV_REDUND;

	printf("Valid environment: %d\n", (int)gd->env_valid);

 done:
	if (saved_buffer)
		free(saved_buffer);

	return ret;
}
#endif /* CMD_SAVEENV */

static int env_sf_load(void)
{
	int ret;
	int read1_fail, read2_fail;
	env_t *tmp_env1, *tmp_env2;

	tmp_env1 = (env_t *)memalign(ARCH_DMA_MINALIGN,
			CONFIG_ENV_SIZE);
	tmp_env2 = (env_t *)memalign(ARCH_DMA_MINALIGN,
			CONFIG_ENV_SIZE);
	if (!tmp_env1 || !tmp_env2) {
		set_default_env("malloc() failed", 0);
		ret = -EIO;
		goto out;
	}

	ret = setup_flash_device();
	if (ret)
		goto out;

	read1_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET,
				    CONFIG_ENV_SIZE, tmp_env1);
	read2_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET_REDUND,
				    CONFIG_ENV_SIZE, tmp_env2);

	ret = env_import_redund((char *)tmp_env1, read1_fail, (char *)tmp_env2,
				read2_fail);

	spi_flash_free(env_flash);
	env_flash = NULL;
out:
	free(tmp_env1);
	free(tmp_env2);

	return ret;
}
#else
#ifdef CMD_SAVEENV
static int env_sf_save(void)
{
	u32	saved_size, saved_offset, sector;
	char	*saved_buffer = NULL;
	int	ret = 1;
	env_t	env_new;

	ret = setup_flash_device();
	if (ret)
		return ret;

	/* Is the sector larger than the env (i.e. embedded) */
	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
		saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
		saved_offset = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
		saved_buffer = malloc(saved_size);
		if (!saved_buffer)
			goto done;

		ret = spi_flash_read(env_flash, saved_offset,
			saved_size, saved_buffer);
		if (ret)
			goto done;
	}

	ret = env_export(&env_new);
	if (ret)
		goto done;

	sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);

	puts("Erasing SPI flash...");
	ret = spi_flash_erase(env_flash, CONFIG_ENV_OFFSET,
		sector * CONFIG_ENV_SECT_SIZE);
	if (ret)
		goto done;

	puts("Writing to SPI flash...");
	ret = spi_flash_write(env_flash, CONFIG_ENV_OFFSET,
		CONFIG_ENV_SIZE, &env_new);
	if (ret)
		goto done;

	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
		ret = spi_flash_write(env_flash, saved_offset,
			saved_size, saved_buffer);
		if (ret)
			goto done;
	}

	ret = 0;
	puts("done\n");

 done:
	if (saved_buffer)
		free(saved_buffer);

	return ret;
}
#endif /* CMD_SAVEENV */

static int env_sf_load(void)
{
	int ret;
	char *buf = NULL;

	buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
	if (!buf) {
		set_default_env("malloc() failed", 0);
		return -EIO;
	}

	ret = setup_flash_device();
	if (ret)
		goto out;

	ret = spi_flash_read(env_flash,
		CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
	if (ret) {
		set_default_env("spi_flash_read() failed", 0);
		goto err_read;
	}

	ret = env_import(buf, 1);
	if (!ret)
		gd->env_valid = ENV_VALID;

err_read:
	spi_flash_free(env_flash);
	env_flash = NULL;
out:
	free(buf);

	return ret;
}
#endif

#if defined(INITENV) && defined(CONFIG_ENV_ADDR)
static int env_sf_init(void)
{
	env_t *env_ptr = (env_t *)(CONFIG_ENV_ADDR);

	if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
		gd->env_addr	= (ulong)&(env_ptr->data);
		gd->env_valid	= 1;
	} else {
		gd->env_addr = (ulong)&default_environment[0];
		gd->env_valid = 1;
	}

	return 0;
}
#endif

U_BOOT_ENV_LOCATION(sf) = {
	.location	= ENVL_SPI_FLASH,
	ENV_NAME("SPI Flash")
	.load		= env_sf_load,
#ifdef CMD_SAVEENV
	.save		= env_save_ptr(env_sf_save),
#endif
#if defined(INITENV) && defined(CONFIG_ENV_ADDR)
	.init		= env_sf_init,
#endif
};
Commit	Line	Data
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
8c66497e	2	/*
ea882baf	3	* (C) Copyright 2000-2010
8c66497e HS	4	* Wolfgang Denk, DENX Software Engineering, [email protected].
	5	*
	6	* (C) Copyright 2001 Sysgo Real-Time Solutions, GmbH <www.elinos.com>
	7	* Andreas Heppel <[email protected]>
	8	*
	9	* (C) Copyright 2008 Atmel Corporation
8c66497e HS	10	*/
8c66497e HS	11	#include <common.h>
9d922450	12	#include <dm.h>
8c66497e	13	#include <environment.h>
5b3375ac	14	#include <malloc.h>
843c9e87	15	#include <spi.h>
8c66497e	16	#include <spi_flash.h>
ea882baf WD	17	#include <search.h>
ea882baf WD	18	#include <errno.h>
19c31285	19	#include <dm/device-internal.h>
8c66497e	20
0e8d1586	21	#ifndef CONFIG_ENV_SPI_BUS
2e4e5ad4	22	# define CONFIG_ENV_SPI_BUS CONFIG_SF_DEFAULT_BUS
8c66497e	23	#endif
0e8d1586	24	#ifndef CONFIG_ENV_SPI_CS
2e4e5ad4	25	# define CONFIG_ENV_SPI_CS CONFIG_SF_DEFAULT_CS
8c66497e	26	#endif
0e8d1586	27	#ifndef CONFIG_ENV_SPI_MAX_HZ
2e4e5ad4	28	# define CONFIG_ENV_SPI_MAX_HZ CONFIG_SF_DEFAULT_SPEED
8c66497e	29	#endif
0e8d1586	30	#ifndef CONFIG_ENV_SPI_MODE
2e4e5ad4	31	# define CONFIG_ENV_SPI_MODE CONFIG_SF_DEFAULT_MODE
8c66497e HS	32	#endif
8c66497e HS	33
4415f1d1 SG	34	#ifndef CONFIG_SPL_BUILD
4415f1d1 SG	35	#define CMD_SAVEENV
b500c92b	36	#define INITENV
4415f1d1 SG	37	#endif
4415f1d1 SG	38
7319bcaf	39	#ifdef CONFIG_ENV_OFFSET_REDUND
4415f1d1	40	#ifdef CMD_SAVEENV
eb58a7fc IG	41	static ulong env_offset = CONFIG_ENV_OFFSET;
eb58a7fc IG	42	static ulong env_new_offset = CONFIG_ENV_OFFSET_REDUND;
4415f1d1	43	#endif
7319bcaf	44
eb58a7fc IG	45	#define ACTIVE_FLAG 1
eb58a7fc IG	46	#define OBSOLETE_FLAG 0
a3110f01	47	#endif /* CONFIG_ENV_OFFSET_REDUND */
7319bcaf	48
8c66497e HS	49	DECLARE_GLOBAL_DATA_PTR;
8c66497e HS	50
8c66497e HS	51	static struct spi_flash *env_flash;
8c66497e HS	52
afa81a77	53	static int setup_flash_device(void)
7319bcaf	54	{
19c31285 GQ	55	#ifdef CONFIG_DM_SPI_FLASH
19c31285 GQ	56	struct udevice *new;
afa81a77	57	int ret;
19c31285	58
96907c0f	59	/* speed and mode will be read from DT */
19c31285	60	ret = spi_flash_probe_bus_cs(CONFIG_ENV_SPI_BUS, CONFIG_ENV_SPI_CS,
96907c0f	61	0, 0, &new);
19c31285	62	if (ret) {
c5d548a9	63	set_default_env("spi_flash_probe_bus_cs() failed", 0);
c5951991	64	return ret;
19c31285 GQ	65	}
	66
	67	env_flash = dev_get_uclass_priv(new);
	68	#else
7319bcaf WW	69
7319bcaf WW	70	if (!env_flash) {
a3110f01 SB	71	env_flash = spi_flash_probe(CONFIG_ENV_SPI_BUS,
	72	CONFIG_ENV_SPI_CS,
	73	CONFIG_ENV_SPI_MAX_HZ, CONFIG_ENV_SPI_MODE);
	74	if (!env_flash) {
c5d548a9	75	set_default_env("spi_flash_probe() failed", 0);
c5951991	76	return -EIO;
a3110f01	77	}
7319bcaf	78	}
19c31285	79	#endif
afa81a77 AF	80	return 0;
	81	}
	82
	83	#if defined(CONFIG_ENV_OFFSET_REDUND)
4415f1d1	84	#ifdef CMD_SAVEENV
e5bce247	85	static int env_sf_save(void)
afa81a77 AF	86	{
	87	env_t env_new;
	88	char *saved_buffer = NULL, flag = OBSOLETE_FLAG;
0b2e5bbe	89	u32 saved_size, saved_offset, sector;
afa81a77 AF	90	int ret;
	91
	92	ret = setup_flash_device();
	93	if (ret)
	94	return ret;
7319bcaf	95
7ce1526e MV	96	ret = env_export(&env_new);
7ce1526e MV	97	if (ret)
c5951991	98	return -EIO;
cd0f4fa1	99	env_new.flags = ACTIVE_FLAG;
ea882baf	100
203e94f6	101	if (gd->env_valid == ENV_VALID) {
a3110f01 SB	102	env_new_offset = CONFIG_ENV_OFFSET_REDUND;
	103	env_offset = CONFIG_ENV_OFFSET;
	104	} else {
	105	env_new_offset = CONFIG_ENV_OFFSET;
	106	env_offset = CONFIG_ENV_OFFSET_REDUND;
	107	}
	108
7319bcaf WW	109	/* Is the sector larger than the env (i.e. embedded) */
	110	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
	111	saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
	112	saved_offset = env_new_offset + CONFIG_ENV_SIZE;
7dd01744	113	saved_buffer = memalign(ARCH_DMA_MINALIGN, saved_size);
7319bcaf	114	if (!saved_buffer) {
c5951991	115	ret = -ENOMEM;
7319bcaf WW	116	goto done;
	117	}
	118	ret = spi_flash_read(env_flash, saved_offset,
	119	saved_size, saved_buffer);
	120	if (ret)
	121	goto done;
	122	}
	123
0b2e5bbe	124	sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);
7319bcaf WW	125
	126	puts("Erasing SPI flash...");
	127	ret = spi_flash_erase(env_flash, env_new_offset,
	128	sector * CONFIG_ENV_SECT_SIZE);
	129	if (ret)
	130	goto done;
	131
	132	puts("Writing to SPI flash...");
7319bcaf	133
a3110f01	134	ret = spi_flash_write(env_flash, env_new_offset,
cd0f4fa1	135	CONFIG_ENV_SIZE, &env_new);
7319bcaf WW	136	if (ret)
	137	goto done;
	138
	139	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
	140	ret = spi_flash_write(env_flash, saved_offset,
	141	saved_size, saved_buffer);
	142	if (ret)
	143	goto done;
	144	}
	145
eb58a7fc	146	ret = spi_flash_write(env_flash, env_offset + offsetof(env_t, flags),
cd0f4fa1	147	sizeof(env_new.flags), &flag);
a3110f01 SB	148	if (ret)
a3110f01 SB	149	goto done;
7319bcaf	150
7319bcaf WW	151	puts("done\n");
7319bcaf WW	152
203e94f6	153	gd->env_valid = gd->env_valid == ENV_REDUND ? ENV_VALID : ENV_REDUND;
a3110f01	154
2dc55d9e	155	printf("Valid environment: %d\n", (int)gd->env_valid);
a3110f01	156
7319bcaf WW	157	done:
	158	if (saved_buffer)
	159	free(saved_buffer);
eb58a7fc	160
7319bcaf WW	161	return ret;
7319bcaf WW	162	}
4415f1d1	163	#endif /* CMD_SAVEENV */
7319bcaf	164
c5951991	165	static int env_sf_load(void)
7319bcaf WW	166	{
7319bcaf WW	167	int ret;
80719938 SG	168	int read1_fail, read2_fail;
80719938 SG	169	env_t tmp_env1, tmp_env2;
7319bcaf	170
7dd01744 RB	171	tmp_env1 = (env_t *)memalign(ARCH_DMA_MINALIGN,
	172	CONFIG_ENV_SIZE);
	173	tmp_env2 = (env_t *)memalign(ARCH_DMA_MINALIGN,
	174	CONFIG_ENV_SIZE);
ea882baf	175	if (!tmp_env1 \|\| !tmp_env2) {
c5d548a9	176	set_default_env("malloc() failed", 0);
c5951991	177	ret = -EIO;
2dc55d9e	178	goto out;
7319bcaf WW	179	}
7319bcaf WW	180
8fee8845 AF	181	ret = setup_flash_device();
8fee8845 AF	182	if (ret)
2dc55d9e	183	goto out;
7319bcaf	184
80719938 SG	185	read1_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET,
	186	CONFIG_ENV_SIZE, tmp_env1);
	187	read2_fail = spi_flash_read(env_flash, CONFIG_ENV_OFFSET_REDUND,
	188	CONFIG_ENV_SIZE, tmp_env2);
ea882baf	189
80719938 SG	190	ret = env_import_redund((char )tmp_env1, read1_fail, (char )tmp_env2,
80719938 SG	191	read2_fail);
7319bcaf	192
7319bcaf WW	193	spi_flash_free(env_flash);
7319bcaf WW	194	env_flash = NULL;
7319bcaf	195	out:
ea882baf WD	196	free(tmp_env1);
ea882baf WD	197	free(tmp_env2);
c5951991 SG	198
c5951991 SG	199	return ret;
7319bcaf WW	200	}
7319bcaf WW	201	#else
4415f1d1	202	#ifdef CMD_SAVEENV
e5bce247	203	static int env_sf_save(void)
8c66497e	204	{
0b2e5bbe	205	u32 saved_size, saved_offset, sector;
7ce1526e	206	char *saved_buffer = NULL;
eb58a7fc	207	int ret = 1;
cd0f4fa1	208	env_t env_new;
19c31285	209
afa81a77 AF	210	ret = setup_flash_device();
	211	if (ret)
	212	return ret;
8c66497e	213
5b3375ac MF	214	/* Is the sector larger than the env (i.e. embedded) */
	215	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
	216	saved_size = CONFIG_ENV_SECT_SIZE - CONFIG_ENV_SIZE;
	217	saved_offset = CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE;
	218	saved_buffer = malloc(saved_size);
eb58a7fc	219	if (!saved_buffer)
5b3375ac	220	goto done;
eb58a7fc	221
a3110f01 SB	222	ret = spi_flash_read(env_flash, saved_offset,
a3110f01 SB	223	saved_size, saved_buffer);
5b3375ac MF	224	if (ret)
	225	goto done;
	226	}
	227
7ce1526e MV	228	ret = env_export(&env_new);
7ce1526e MV	229	if (ret)
a3110f01	230	goto done;
a3110f01	231
0b2e5bbe AF	232	sector = DIV_ROUND_UP(CONFIG_ENV_SIZE, CONFIG_ENV_SECT_SIZE);
0b2e5bbe AF	233
8c66497e	234	puts("Erasing SPI flash...");
a3110f01 SB	235	ret = spi_flash_erase(env_flash, CONFIG_ENV_OFFSET,
a3110f01 SB	236	sector * CONFIG_ENV_SECT_SIZE);
5b3375ac MF	237	if (ret)
5b3375ac MF	238	goto done;
8c66497e HS	239
8c66497e HS	240	puts("Writing to SPI flash...");
a3110f01	241	ret = spi_flash_write(env_flash, CONFIG_ENV_OFFSET,
cd0f4fa1	242	CONFIG_ENV_SIZE, &env_new);
5b3375ac MF	243	if (ret)
5b3375ac MF	244	goto done;
8c66497e	245
5b3375ac	246	if (CONFIG_ENV_SECT_SIZE > CONFIG_ENV_SIZE) {
a3110f01 SB	247	ret = spi_flash_write(env_flash, saved_offset,
a3110f01 SB	248	saved_size, saved_buffer);
5b3375ac MF	249	if (ret)
	250	goto done;
	251	}
	252
	253	ret = 0;
8c66497e	254	puts("done\n");
5b3375ac MF	255
	256	done:
	257	if (saved_buffer)
	258	free(saved_buffer);
eb58a7fc	259
5b3375ac	260	return ret;
8c66497e	261	}
4415f1d1	262	#endif /* CMD_SAVEENV */
8c66497e	263
c5951991	264	static int env_sf_load(void)
8c66497e HS	265	{
8c66497e HS	266	int ret;
5a89fa92	267	char *buf = NULL;
8c66497e	268
7dd01744	269	buf = (char *)memalign(ARCH_DMA_MINALIGN, CONFIG_ENV_SIZE);
c041c60c	270	if (!buf) {
c5d548a9	271	set_default_env("malloc() failed", 0);
c5951991	272	return -EIO;
ea882baf	273	}
8c66497e	274
c041c60c AF	275	ret = setup_flash_device();
	276	if (ret)
	277	goto out;
	278
ea882baf WD	279	ret = spi_flash_read(env_flash,
	280	CONFIG_ENV_OFFSET, CONFIG_ENV_SIZE, buf);
	281	if (ret) {
c5d548a9	282	set_default_env("spi_flash_read() failed", 0);
c041c60c	283	goto err_read;
ea882baf	284	}
8c66497e	285
ea882baf	286	ret = env_import(buf, 1);
42a1820b	287	if (!ret)
203e94f6	288	gd->env_valid = ENV_VALID;
c041c60c AF	289
c041c60c AF	290	err_read:
8c66497e HS	291	spi_flash_free(env_flash);
8c66497e HS	292	env_flash = NULL;
c041c60c AF	293	out:
c041c60c AF	294	free(buf);
c5951991 SG	295
c5951991 SG	296	return ret;
8c66497e	297	}
7319bcaf	298	#endif
8c66497e	299
b500c92b AK	300	#if defined(INITENV) && defined(CONFIG_ENV_ADDR)
	301	static int env_sf_init(void)
	302	{
	303	env_t env_ptr = (env_t )(CONFIG_ENV_ADDR);
	304
	305	if (crc32(0, env_ptr->data, ENV_SIZE) == env_ptr->crc) {
	306	gd->env_addr = (ulong)&(env_ptr->data);
	307	gd->env_valid = 1;
	308	} else {
	309	gd->env_addr = (ulong)&default_environment[0];
	310	gd->env_valid = 1;
	311	}
	312
	313	return 0;
	314	}
	315	#endif
	316
4415f1d1 SG	317	U_BOOT_ENV_LOCATION(sf) = {
4415f1d1 SG	318	.location = ENVL_SPI_FLASH,
ac358beb	319	ENV_NAME("SPI Flash")
e5bce247	320	.load = env_sf_load,
4415f1d1	321	#ifdef CMD_SAVEENV
e5bce247	322	.save = env_save_ptr(env_sf_save),
4415f1d1	323	#endif
b500c92b AK	324	#if defined(INITENV) && defined(CONFIG_ENV_ADDR)
	325	.init = env_sf_init,
	326	#endif
4415f1d1	327	};