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

/*
 * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
 *
 * Authors: Igor Grinberg <grinberg@compulab.co.il>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <bmp_layout.h>
#include <errno.h>
#include <fs.h>
#include <fdt_support.h>
#include <image.h>
#include <nand.h>
#include <sata.h>
#include <spi.h>
#include <spi_flash.h>
#include <splash.h>
#include <usb.h>

DECLARE_GLOBAL_DATA_PTR;

#ifdef CONFIG_SPI_FLASH
static struct spi_flash *sf;
static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
{
	if (!sf) {
		sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
				     CONFIG_SF_DEFAULT_CS,
				     CONFIG_SF_DEFAULT_SPEED,
				     CONFIG_SF_DEFAULT_MODE);
		if (!sf)
			return -ENODEV;
	}

	return spi_flash_read(sf, offset, read_size, (void *)bmp_load_addr);
}
#else
static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
{
	debug("%s: sf support not available\n", __func__);
	return -ENOSYS;
}
#endif

#ifdef CONFIG_CMD_NAND
static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
{
	return nand_read_skip_bad(nand_info[nand_curr_device], offset,
				  &read_size, NULL,
				  nand_info[nand_curr_device]->size,
				  (u_char *)bmp_load_addr);
}
#else
static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
{
	debug("%s: nand support not available\n", __func__);
	return -ENOSYS;
}
#endif

static int splash_storage_read_raw(struct splash_location *location,
			       u32 bmp_load_addr, size_t read_size)
{
	u32 offset;

	if (!location)
		return -EINVAL;

	offset = location->offset;
	switch (location->storage) {
	case SPLASH_STORAGE_NAND:
		return splash_nand_read_raw(bmp_load_addr, offset, read_size);
	case SPLASH_STORAGE_SF:
		return splash_sf_read_raw(bmp_load_addr, offset, read_size);
	default:
		printf("Unknown splash location\n");
	}

	return -EINVAL;
}

static int splash_load_raw(struct splash_location *location, u32 bmp_load_addr)
{
	struct bmp_header *bmp_hdr;
	int res;
	size_t bmp_size, bmp_header_size = sizeof(struct bmp_header);

	if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp)
		goto splash_address_too_high;

	res = splash_storage_read_raw(location, bmp_load_addr, bmp_header_size);
	if (res < 0)
		return res;

	bmp_hdr = (struct bmp_header *)bmp_load_addr;
	bmp_size = le32_to_cpu(bmp_hdr->file_size);

	if (bmp_load_addr + bmp_size >= gd->start_addr_sp)
		goto splash_address_too_high;

	return splash_storage_read_raw(location, bmp_load_addr, bmp_size);

splash_address_too_high:
	printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");

	return -EFAULT;
}

static int splash_select_fs_dev(struct splash_location *location)
{
	int res;

	switch (location->storage) {
	case SPLASH_STORAGE_MMC:
		res = fs_set_blk_dev("mmc", location->devpart, FS_TYPE_ANY);
		break;
	case SPLASH_STORAGE_USB:
		res = fs_set_blk_dev("usb", location->devpart, FS_TYPE_ANY);
		break;
	case SPLASH_STORAGE_SATA:
		res = fs_set_blk_dev("sata", location->devpart, FS_TYPE_ANY);
		break;
	case SPLASH_STORAGE_NAND:
		if (location->ubivol != NULL)
			res = fs_set_blk_dev("ubi", NULL, FS_TYPE_UBIFS);
		else
			res = -ENODEV;
		break;
	default:
		printf("Error: unsupported location storage.\n");
		return -ENODEV;
	}

	if (res)
		printf("Error: could not access storage.\n");

	return res;
}

#ifdef CONFIG_USB_STORAGE
static int splash_init_usb(void)
{
	int err;

	err = usb_init();
	if (err)
		return err;

#ifndef CONFIG_DM_USB
	err = usb_stor_scan(1) < 0 ? -ENODEV : 0;
#endif

	return err;
}
#else
static inline int splash_init_usb(void)
{
	printf("Cannot load splash image: no USB support\n");
	return -ENOSYS;
}
#endif

#ifdef CONFIG_SATA
static int splash_init_sata(void)
{
	return sata_initialize();
}
#else
static inline int splash_init_sata(void)
{
	printf("Cannot load splash image: no SATA support\n");
	return -ENOSYS;
}
#endif

#ifdef CONFIG_CMD_UBIFS
static int splash_mount_ubifs(struct splash_location *location)
{
	int res;
	char cmd[32];

	sprintf(cmd, "ubi part %s", location->mtdpart);
	res = run_command(cmd, 0);
	if (res)
		return res;

	sprintf(cmd, "ubifsmount %s", location->ubivol);
	res = run_command(cmd, 0);

	return res;
}

static inline int splash_umount_ubifs(void)
{
	return run_command("ubifsumount", 0);
}
#else
static inline int splash_mount_ubifs(struct splash_location *location)
{
	printf("Cannot load splash image: no UBIFS support\n");
	return -ENOSYS;
}

static inline int splash_umount_ubifs(void)
{
	printf("Cannot unmount UBIFS: no UBIFS support\n");
	return -ENOSYS;
}
#endif

#define SPLASH_SOURCE_DEFAULT_FILE_NAME		"splash.bmp"

static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr)
{
	int res = 0;
	loff_t bmp_size;
	loff_t actread;
	char *splash_file;

	splash_file = getenv("splashfile");
	if (!splash_file)
		splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;

	if (location->storage == SPLASH_STORAGE_USB)
		res = splash_init_usb();

	if (location->storage == SPLASH_STORAGE_SATA)
		res = splash_init_sata();

	if (location->ubivol != NULL)
		res = splash_mount_ubifs(location);

	if (res)
		return res;

	res = splash_select_fs_dev(location);
	if (res)
		goto out;

	res = fs_size(splash_file, &bmp_size);
	if (res) {
		printf("Error (%d): cannot determine file size\n", res);
		goto out;
	}

	if (bmp_load_addr + bmp_size >= gd->start_addr_sp) {
		printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
		res = -EFAULT;
		goto out;
	}

	splash_select_fs_dev(location);
	res = fs_read(splash_file, bmp_load_addr, 0, 0, &actread);

out:
	if (location->ubivol != NULL)
		splash_umount_ubifs();

	return res;
}

/**
 * select_splash_location - return the splash location based on board support
 *			    and env variable "splashsource".
 *
 * @locations:		An array of supported splash locations.
 * @size:		Size of splash_locations array.
 *
 * @return: If a null set of splash locations is given, or
 *	    splashsource env variable is set to unsupported value
 *			return NULL.
 *	    If splashsource env variable is not defined
 *			return the first entry in splash_locations as default.
 *	    If splashsource env variable contains a supported value
 *			return the location selected by splashsource.
 */
static struct splash_location *select_splash_location(
			    struct splash_location *locations, uint size)
{
	int i;
	char *env_splashsource;

	if (!locations || size == 0)
		return NULL;

	env_splashsource = getenv("splashsource");
	if (env_splashsource == NULL)
		return &locations[0];

	for (i = 0; i < size; i++) {
		if (!strcmp(locations[i].name, env_splashsource))
			return &locations[i];
	}

	printf("splashsource env variable set to unsupported value\n");
	return NULL;
}

#ifdef CONFIG_FIT
static int splash_load_fit(struct splash_location *location, u32 bmp_load_addr)
{
	int res;
	int node_offset;
	int splash_offset;
	int splash_size;
	struct image_header *img_header;
	const u32 *fit_header;
	u32 fit_size;
	const size_t header_size = sizeof(struct image_header);

	/* Read in image header */
	res = splash_storage_read_raw(location, bmp_load_addr, header_size);
	if (res < 0)
		return res;

	img_header = (struct image_header *)bmp_load_addr;
	fit_size = fdt_totalsize(img_header);

	/* Read in entire FIT */
	fit_header = (const u32 *)(bmp_load_addr + header_size);
	res = splash_storage_read_raw(location, (u32)fit_header, fit_size);
	if (res < 0)
		return res;

	res = fit_check_format(fit_header);
	if (!res) {
		debug("Could not find valid FIT image\n");
		return -EINVAL;
	}

	node_offset = fit_image_get_node(fit_header, location->name);
	if (node_offset < 0) {
		debug("Could not find splash image '%s' in FIT\n",
		      location->name);
		return -ENOENT;
	}

	res = fit_image_get_data_offset(fit_header, node_offset,
					&splash_offset);
	if (res < 0) {
		printf("Failed to load splash image (err=%d)\n", res);
		return res;
	}

	res = fit_image_get_data_size(fit_header, node_offset, &splash_size);
	if (res < 0) {
		printf("Failed to load splash image (err=%d)\n", res);
		return res;
	}

	/* Align data offset to 4-byte boundrary */
	fit_size = fdt_totalsize(fit_header);
	fit_size = (fit_size + 3) & ~3;

	/* Read in the splash data */
	location->offset = (location->offset + fit_size + splash_offset);
	res = splash_storage_read_raw(location, bmp_load_addr , splash_size);
	if (res < 0)
		return res;

	return 0;
}
#endif /* CONFIG_FIT */

/**
 * splash_source_load - load splash image from a supported location.
 *
 * Select a splash image location based on the value of splashsource environment
 * variable and the board supported splash source locations, and load a
 * splashimage to the address pointed to by splashimage environment variable.
 *
 * @locations:		An array of supported splash locations.
 * @size:		Size of splash_locations array.
 *
 * @return: 0 on success, negative value on failure.
 */
int splash_source_load(struct splash_location *locations, uint size)
{
	struct splash_location *splash_location;
	char *env_splashimage_value;
	u32 bmp_load_addr;

	env_splashimage_value = getenv("splashimage");
	if (env_splashimage_value == NULL)
		return -ENOENT;

	bmp_load_addr = simple_strtoul(env_splashimage_value, 0, 16);
	if (bmp_load_addr == 0) {
		printf("Error: bad splashimage address specified\n");
		return -EFAULT;
	}

	splash_location = select_splash_location(locations, size);
	if (!splash_location)
		return -EINVAL;

	if (splash_location->flags == SPLASH_STORAGE_RAW)
		return splash_load_raw(splash_location, bmp_load_addr);
	else if (splash_location->flags == SPLASH_STORAGE_FS)
		return splash_load_fs(splash_location, bmp_load_addr);
#ifdef CONFIG_FIT
	else if (splash_location->flags == SPLASH_STORAGE_FIT)
		return splash_load_fit(splash_location, bmp_load_addr);
#endif
	return -EINVAL;
}
Commit	Line	Data
f4a40f05 IG	1	/*
	2	* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
	3	*
	4	* Authors: Igor Grinberg <grinberg@compulab.co.il>
	5	*
	6	* SPDX-License-Identifier: GPL-2.0+
	7	*/
	8
	9	#include <common.h>
7583f1f5	10	#include <bmp_layout.h>
6947e3f5	11	#include <errno.h>
7583f1f5	12	#include <fs.h>
db1b79b8	13	#include <fdt_support.h>
7583f1f5	14	#include <image.h>
	15	#include <nand.h>
	16	#include <sata.h>
7e8d7f2a	17	#include <spi.h>
7583f1f5	18	#include <spi_flash.h>
7583f1f5	19	#include <splash.h>
9bb4e947	20	#include <usb.h>
f4a40f05 IG	21
	22	DECLARE_GLOBAL_DATA_PTR;
	23
7e8d7f2a NK	24	#ifdef CONFIG_SPI_FLASH
7e8d7f2a NK	25	static struct spi_flash *sf;
bcbb6448	26	static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7e8d7f2a NK	27	{
	28	if (!sf) {
	29	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
	30	CONFIG_SF_DEFAULT_CS,
	31	CONFIG_SF_DEFAULT_SPEED,
	32	CONFIG_SF_DEFAULT_MODE);
	33	if (!sf)
	34	return -ENODEV;
	35	}
	36
	37	return spi_flash_read(sf, offset, read_size, (void *)bmp_load_addr);
	38	}
	39	#else
bcbb6448	40	static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7e8d7f2a NK	41	{
	42	debug("%s: sf support not available\n", __func__);
	43	return -ENOSYS;
	44	}
	45	#endif
	46
f4a40f05	47	#ifdef CONFIG_CMD_NAND
bcbb6448	48	static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7be4cd2c	49	{
b616d9b0	50	return nand_read_skip_bad(nand_info[nand_curr_device], offset,
7be4cd2c	51	&read_size, NULL,
b616d9b0	52	nand_info[nand_curr_device]->size,
7be4cd2c NK	53	(u_char *)bmp_load_addr);
	54	}
	55	#else
bcbb6448	56	static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7be4cd2c NK	57	{
	58	debug("%s: nand support not available\n", __func__);
	59	return -ENOSYS;
	60	}
	61	#endif
	62
bcbb6448	63	static int splash_storage_read_raw(struct splash_location *location,
fd29dd55	64	u32 bmp_load_addr, size_t read_size)
7be4cd2c	65	{
fd29dd55 NK	66	u32 offset;
	67
	68	if (!location)
	69	return -EINVAL;
	70
	71	offset = location->offset;
	72	switch (location->storage) {
	73	case SPLASH_STORAGE_NAND:
bcbb6448	74	return splash_nand_read_raw(bmp_load_addr, offset, read_size);
7e8d7f2a	75	case SPLASH_STORAGE_SF:
bcbb6448	76	return splash_sf_read_raw(bmp_load_addr, offset, read_size);
fd29dd55 NK	77	default:
	78	printf("Unknown splash location\n");
	79	}
	80
	81	return -EINVAL;
7be4cd2c NK	82	}
7be4cd2c NK	83
fd29dd55	84	static int splash_load_raw(struct splash_location *location, u32 bmp_load_addr)
f4a40f05 IG	85	{
	86	struct bmp_header *bmp_hdr;
	87	int res;
	88	size_t bmp_size, bmp_header_size = sizeof(struct bmp_header);
	89
	90	if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp)
	91	goto splash_address_too_high;
	92
bcbb6448	93	res = splash_storage_read_raw(location, bmp_load_addr, bmp_header_size);
f4a40f05 IG	94	if (res < 0)
	95	return res;
	96
	97	bmp_hdr = (struct bmp_header *)bmp_load_addr;
	98	bmp_size = le32_to_cpu(bmp_hdr->file_size);
	99
	100	if (bmp_load_addr + bmp_size >= gd->start_addr_sp)
	101	goto splash_address_too_high;
	102
bcbb6448	103	return splash_storage_read_raw(location, bmp_load_addr, bmp_size);
f4a40f05 IG	104
f4a40f05 IG	105	splash_address_too_high:
f82eb2fa	106	printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
f4a40f05	107
6947e3f5	108	return -EFAULT;
f4a40f05	109	}
f4a40f05	110
870dd309 NK	111	static int splash_select_fs_dev(struct splash_location *location)
	112	{
	113	int res;
	114
	115	switch (location->storage) {
	116	case SPLASH_STORAGE_MMC:
	117	res = fs_set_blk_dev("mmc", location->devpart, FS_TYPE_ANY);
	118	break;
9bb4e947 NK	119	case SPLASH_STORAGE_USB:
	120	res = fs_set_blk_dev("usb", location->devpart, FS_TYPE_ANY);
	121	break;
50c2d2e1 NK	122	case SPLASH_STORAGE_SATA:
	123	res = fs_set_blk_dev("sata", location->devpart, FS_TYPE_ANY);
	124	break;
1cb075c6 EM	125	case SPLASH_STORAGE_NAND:
	126	if (location->ubivol != NULL)
	127	res = fs_set_blk_dev("ubi", NULL, FS_TYPE_UBIFS);
	128	else
	129	res = -ENODEV;
	130	break;
870dd309 NK	131	default:
	132	printf("Error: unsupported location storage.\n");
	133	return -ENODEV;
	134	}
	135
	136	if (res)
	137	printf("Error: could not access storage.\n");
	138
	139	return res;
	140	}
	141
9bb4e947 NK	142	#ifdef CONFIG_USB_STORAGE
	143	static int splash_init_usb(void)
	144	{
	145	int err;
	146
	147	err = usb_init();
	148	if (err)
	149	return err;
	150
d7b60fbf AB	151	#ifndef CONFIG_DM_USB
	152	err = usb_stor_scan(1) < 0 ? -ENODEV : 0;
	153	#endif
	154
	155	return err;
9bb4e947 NK	156	}
	157	#else
	158	static inline int splash_init_usb(void)
	159	{
	160	printf("Cannot load splash image: no USB support\n");
	161	return -ENOSYS;
	162	}
	163	#endif
	164
10e40d54	165	#ifdef CONFIG_SATA
50c2d2e1 NK	166	static int splash_init_sata(void)
	167	{
	168	return sata_initialize();
	169	}
	170	#else
	171	static inline int splash_init_sata(void)
	172	{
	173	printf("Cannot load splash image: no SATA support\n");
	174	return -ENOSYS;
	175	}
	176	#endif
	177
1cb075c6 EM	178	#ifdef CONFIG_CMD_UBIFS
	179	static int splash_mount_ubifs(struct splash_location *location)
	180	{
	181	int res;
	182	char cmd[32];
	183
	184	sprintf(cmd, "ubi part %s", location->mtdpart);
	185	res = run_command(cmd, 0);
	186	if (res)
	187	return res;
	188
	189	sprintf(cmd, "ubifsmount %s", location->ubivol);
	190	res = run_command(cmd, 0);
	191
	192	return res;
	193	}
	194
	195	static inline int splash_umount_ubifs(void)
	196	{
	197	return run_command("ubifsumount", 0);
	198	}
	199	#else
	200	static inline int splash_mount_ubifs(struct splash_location *location)
	201	{
	202	printf("Cannot load splash image: no UBIFS support\n");
	203	return -ENOSYS;
	204	}
	205
	206	static inline int splash_umount_ubifs(void)
	207	{
	208	printf("Cannot unmount UBIFS: no UBIFS support\n");
	209	return -ENOSYS;
	210	}
	211	#endif
	212
870dd309 NK	213	#define SPLASH_SOURCE_DEFAULT_FILE_NAME "splash.bmp"
	214
	215	static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr)
	216	{
9bb4e947	217	int res = 0;
870dd309	218	loff_t bmp_size;
3cc6e707	219	loff_t actread;
870dd309 NK	220	char *splash_file;
	221
	222	splash_file = getenv("splashfile");
	223	if (!splash_file)
	224	splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;
	225
9bb4e947 NK	226	if (location->storage == SPLASH_STORAGE_USB)
	227	res = splash_init_usb();
	228
50c2d2e1 NK	229	if (location->storage == SPLASH_STORAGE_SATA)
	230	res = splash_init_sata();
	231
1cb075c6 EM	232	if (location->ubivol != NULL)
	233	res = splash_mount_ubifs(location);
	234
9bb4e947 NK	235	if (res)
	236	return res;
	237
870dd309 NK	238	res = splash_select_fs_dev(location);
870dd309 NK	239	if (res)
1cb075c6	240	goto out;
870dd309 NK	241
	242	res = fs_size(splash_file, &bmp_size);
	243	if (res) {
	244	printf("Error (%d): cannot determine file size\n", res);
1cb075c6	245	goto out;
870dd309 NK	246	}
	247
	248	if (bmp_load_addr + bmp_size >= gd->start_addr_sp) {
	249	printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
1cb075c6 EM	250	res = -EFAULT;
1cb075c6 EM	251	goto out;
870dd309 NK	252	}
	253
	254	splash_select_fs_dev(location);
3cc6e707	255	res = fs_read(splash_file, bmp_load_addr, 0, 0, &actread);
1cb075c6 EM	256
	257	out:
	258	if (location->ubivol != NULL)
	259	splash_umount_ubifs();
	260
	261	return res;
870dd309 NK	262	}
870dd309 NK	263
fd29dd55 NK	264	/**
	265	* select_splash_location - return the splash location based on board support
	266	* and env variable "splashsource".
	267	*
	268	* @locations: An array of supported splash locations.
	269	* @size: Size of splash_locations array.
	270	*
	271	* @return: If a null set of splash locations is given, or
	272	* splashsource env variable is set to unsupported value
	273	* return NULL.
	274	* If splashsource env variable is not defined
	275	* return the first entry in splash_locations as default.
	276	* If splashsource env variable contains a supported value
	277	* return the location selected by splashsource.
	278	*/
	279	static struct splash_location *select_splash_location(
	280	struct splash_location *locations, uint size)
	281	{
	282	int i;
	283	char *env_splashsource;
	284
	285	if (!locations \|\| size == 0)
	286	return NULL;
	287
	288	env_splashsource = getenv("splashsource");
	289	if (env_splashsource == NULL)
	290	return &locations[0];
	291
	292	for (i = 0; i < size; i++) {
	293	if (!strcmp(locations[i].name, env_splashsource))
	294	return &locations[i];
	295	}
	296
	297	printf("splashsource env variable set to unsupported value\n");
	298	return NULL;
	299	}
	300
db1b79b8	301	#ifdef CONFIG_FIT
	302	static int splash_load_fit(struct splash_location *location, u32 bmp_load_addr)
	303	{
	304	int res;
	305	int node_offset;
	306	int splash_offset;
	307	int splash_size;
	308	struct image_header *img_header;
	309	const u32 *fit_header;
	310	u32 fit_size;
	311	const size_t header_size = sizeof(struct image_header);
	312
	313	/* Read in image header */
	314	res = splash_storage_read_raw(location, bmp_load_addr, header_size);
	315	if (res < 0)
	316	return res;
	317
	318	img_header = (struct image_header *)bmp_load_addr;
	319	fit_size = fdt_totalsize(img_header);
	320
	321	/* Read in entire FIT */
	322	fit_header = (const u32 *)(bmp_load_addr + header_size);
	323	res = splash_storage_read_raw(location, (u32)fit_header, fit_size);
	324	if (res < 0)
	325	return res;
	326
	327	res = fit_check_format(fit_header);
	328	if (!res) {
	329	debug("Could not find valid FIT image\n");
	330	return -EINVAL;
	331	}
	332
	333	node_offset = fit_image_get_node(fit_header, location->name);
	334	if (node_offset < 0) {
	335	debug("Could not find splash image '%s' in FIT\n",
	336	location->name);
	337	return -ENOENT;
	338	}
	339
	340	res = fit_image_get_data_offset(fit_header, node_offset,
	341	&splash_offset);
	342	if (res < 0) {
	343	printf("Failed to load splash image (err=%d)\n", res);
	344	return res;
	345	}
	346
	347	res = fit_image_get_data_size(fit_header, node_offset, &splash_size);
	348	if (res < 0) {
	349	printf("Failed to load splash image (err=%d)\n", res);
	350	return res;
	351	}
	352
	353	/* Align data offset to 4-byte boundrary */
	354	fit_size = fdt_totalsize(fit_header);
	355	fit_size = (fit_size + 3) & ~3;
	356
	357	/* Read in the splash data */
	358	location->offset = (location->offset + fit_size + splash_offset);
	359	res = splash_storage_read_raw(location, bmp_load_addr , splash_size);
	360	if (res < 0)
	361	return res;
	362
	363	return 0;
	364	}
365	#endif /* CONFIG_FIT */
366
f82eb2fa NK	367	/**
	368	* splash_source_load - load splash image from a supported location.
	369	*
	370	* Select a splash image location based on the value of splashsource environment
	371	* variable and the board supported splash source locations, and load a
	372	* splashimage to the address pointed to by splashimage environment variable.
	373	*
	374	* @locations: An array of supported splash locations.
	375	* @size: Size of splash_locations array.
	376	*
	377	* @return: 0 on success, negative value on failure.
	378	*/
	379	int splash_source_load(struct splash_location *locations, uint size)
f4a40f05	380	{
fd29dd55	381	struct splash_location *splash_location;
f4a40f05 IG	382	char *env_splashimage_value;
	383	u32 bmp_load_addr;
	384
	385	env_splashimage_value = getenv("splashimage");
	386	if (env_splashimage_value == NULL)
6947e3f5	387	return -ENOENT;
f4a40f05 IG	388
	389	bmp_load_addr = simple_strtoul(env_splashimage_value, 0, 16);
	390	if (bmp_load_addr == 0) {
	391	printf("Error: bad splashimage address specified\n");
6947e3f5	392	return -EFAULT;
f4a40f05 IG	393	}
f4a40f05 IG	394
fd29dd55 NK	395	splash_location = select_splash_location(locations, size);
	396	if (!splash_location)
	397	return -EINVAL;
	398
3b593f90	399	if (splash_location->flags == SPLASH_STORAGE_RAW)
870dd309	400	return splash_load_raw(splash_location, bmp_load_addr);
3b593f90	401	else if (splash_location->flags == SPLASH_STORAGE_FS)
870dd309	402	return splash_load_fs(splash_location, bmp_load_addr);
db1b79b8	403	#ifdef CONFIG_FIT
	404	else if (splash_location->flags == SPLASH_STORAGE_FIT)
	405	return splash_load_fit(splash_location, bmp_load_addr);
	406	#endif
870dd309	407	return -EINVAL;
f4a40f05	408	}