[J-u-boot.git] / common / splash_source.c

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

#include <common.h>
#include <bmp_layout.h>
#include <command.h>
#include <env.h>
#include <errno.h>
#include <fs.h>
#include <fdt_support.h>
#include <image.h>
#include <log.h>
#include <nand.h>
#include <sata.h>
#include <spi.h>
#include <spi_flash.h>
#include <splash.h>
#include <usb.h>
#include <asm/global_data.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 *)(uintptr_t)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)
{
	struct mtd_info *mtd = get_nand_dev_by_index(nand_curr_device);
	return nand_read_skip_bad(mtd, offset,
				  &read_size, NULL,
				  mtd->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 *)(uintptr_t)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_probe(0);
}
#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 = env_get("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 = env_get("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;
	const char *splash_file;
	const void *internal_splash_data;
	size_t internal_splash_size;
	int external_splash_addr;
	int external_splash_size;
	bool is_splash_external = false;
	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;
	if (image_get_magic(img_header) != FDT_MAGIC) {
		printf("Could not find FDT magic\n");
		return -EINVAL;
	}

	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, IMAGE_SIZE_INVAL);
	if (res) {
		debug("Could not find valid FIT image\n");
		return res;
	}

	/* Get the splash image node */
	splash_file = env_get("splashfile");
	if (!splash_file)
		splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;

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

	/* Extract the splash data from FIT */
	/* 1. Test if splash is in FIT internal data. */
	if (!fit_image_get_data(fit_header, node_offset, &internal_splash_data, &internal_splash_size))
		memmove((void *)bmp_load_addr, internal_splash_data, internal_splash_size);
	/* 2. Test if splash is in FIT external data with fixed position. */
	else if (!fit_image_get_data_position(fit_header, node_offset, &external_splash_addr))
		is_splash_external = true;
	/* 3. Test if splash is in FIT external data with offset. */
	else if (!fit_image_get_data_offset(fit_header, node_offset, &external_splash_addr)) {
		/* Align data offset to 4-byte boundary */
		fit_size = ALIGN(fdt_totalsize(fit_header), 4);
		/* External splash offset means the offset by end of FIT header */
		external_splash_addr += location->offset + fit_size;
		is_splash_external = true;
	} else {
		printf("Failed to get splash image from FIT\n");
		return -ENODATA;
	}

	if (is_splash_external) {
		res = fit_image_get_data_size(fit_header, node_offset, &external_splash_size);
		if (res < 0) {
			printf("Failed to get size of splash image (err=%d)\n", res);
			return res;
		}

		/* Read in the splash data */
		location->offset = external_splash_addr;
		res = splash_storage_read_raw(location, bmp_load_addr, external_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 = env_get("splashimage");
	if (env_splashimage_value == NULL)
		return -ENOENT;

	bmp_load_addr = hextoul(env_splashimage_value, 0);
	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
83d290c5	1	// SPDX-License-Identifier: GPL-2.0+
f4a40f05 IG	2	/*
	3	* (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
	4	*
	5	* Authors: Igor Grinberg <[email protected]>
f4a40f05 IG	6	*/
	7
	8	#include <common.h>
7583f1f5	9	#include <bmp_layout.h>
288b29e4	10	#include <command.h>
7b51b576	11	#include <env.h>
6947e3f5	12	#include <errno.h>
7583f1f5	13	#include <fs.h>
db1b79b8	14	#include <fdt_support.h>
7583f1f5	15	#include <image.h>
f7ae49fc	16	#include <log.h>
7583f1f5	17	#include <nand.h>
7583f1f5	18	#include <sata.h>
7e8d7f2a	19	#include <spi.h>
7583f1f5	20	#include <spi_flash.h>
7583f1f5	21	#include <splash.h>
9bb4e947	22	#include <usb.h>
401d1c4f	23	#include <asm/global_data.h>
f4a40f05 IG	24
	25	DECLARE_GLOBAL_DATA_PTR;
	26
7e8d7f2a NK	27	#ifdef CONFIG_SPI_FLASH
7e8d7f2a NK	28	static struct spi_flash *sf;
bcbb6448	29	static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7e8d7f2a NK	30	{
	31	if (!sf) {
	32	sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
	33	CONFIG_SF_DEFAULT_CS,
	34	CONFIG_SF_DEFAULT_SPEED,
	35	CONFIG_SF_DEFAULT_MODE);
	36	if (!sf)
	37	return -ENODEV;
	38	}
	39
a0b74acb	40	return spi_flash_read(sf, offset, read_size, (void *)(uintptr_t)bmp_load_addr);
7e8d7f2a NK	41	}
7e8d7f2a NK	42	#else
bcbb6448	43	static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7e8d7f2a NK	44	{
	45	debug("%s: sf support not available\n", __func__);
	46	return -ENOSYS;
	47	}
	48	#endif
	49
f4a40f05	50	#ifdef CONFIG_CMD_NAND
bcbb6448	51	static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7be4cd2c	52	{
edba8cc4 GS	53	struct mtd_info *mtd = get_nand_dev_by_index(nand_curr_device);
edba8cc4 GS	54	return nand_read_skip_bad(mtd, offset,
7be4cd2c	55	&read_size, NULL,
edba8cc4	56	mtd->size,
7be4cd2c NK	57	(u_char *)bmp_load_addr);
	58	}
	59	#else
bcbb6448	60	static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
7be4cd2c NK	61	{
	62	debug("%s: nand support not available\n", __func__);
	63	return -ENOSYS;
	64	}
	65	#endif
	66
bcbb6448	67	static int splash_storage_read_raw(struct splash_location *location,
fd29dd55	68	u32 bmp_load_addr, size_t read_size)
7be4cd2c	69	{
fd29dd55 NK	70	u32 offset;
	71
	72	if (!location)
	73	return -EINVAL;
	74
	75	offset = location->offset;
	76	switch (location->storage) {
	77	case SPLASH_STORAGE_NAND:
bcbb6448	78	return splash_nand_read_raw(bmp_load_addr, offset, read_size);
7e8d7f2a	79	case SPLASH_STORAGE_SF:
bcbb6448	80	return splash_sf_read_raw(bmp_load_addr, offset, read_size);
fd29dd55 NK	81	default:
	82	printf("Unknown splash location\n");
	83	}
	84
	85	return -EINVAL;
7be4cd2c NK	86	}
7be4cd2c NK	87
fd29dd55	88	static int splash_load_raw(struct splash_location *location, u32 bmp_load_addr)
f4a40f05 IG	89	{
	90	struct bmp_header *bmp_hdr;
	91	int res;
	92	size_t bmp_size, bmp_header_size = sizeof(struct bmp_header);
	93
	94	if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp)
	95	goto splash_address_too_high;
	96
bcbb6448	97	res = splash_storage_read_raw(location, bmp_load_addr, bmp_header_size);
f4a40f05 IG	98	if (res < 0)
	99	return res;
	100
a0b74acb	101	bmp_hdr = (struct bmp_header *)(uintptr_t)bmp_load_addr;
f4a40f05 IG	102	bmp_size = le32_to_cpu(bmp_hdr->file_size);
	103
	104	if (bmp_load_addr + bmp_size >= gd->start_addr_sp)
	105	goto splash_address_too_high;
	106
bcbb6448	107	return splash_storage_read_raw(location, bmp_load_addr, bmp_size);
f4a40f05 IG	108
f4a40f05 IG	109	splash_address_too_high:
f82eb2fa	110	printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
f4a40f05	111
6947e3f5	112	return -EFAULT;
f4a40f05	113	}
f4a40f05	114
870dd309 NK	115	static int splash_select_fs_dev(struct splash_location *location)
	116	{
	117	int res;
	118
	119	switch (location->storage) {
	120	case SPLASH_STORAGE_MMC:
	121	res = fs_set_blk_dev("mmc", location->devpart, FS_TYPE_ANY);
	122	break;
9bb4e947 NK	123	case SPLASH_STORAGE_USB:
	124	res = fs_set_blk_dev("usb", location->devpart, FS_TYPE_ANY);
	125	break;
50c2d2e1 NK	126	case SPLASH_STORAGE_SATA:
	127	res = fs_set_blk_dev("sata", location->devpart, FS_TYPE_ANY);
	128	break;
1cb075c6 EM	129	case SPLASH_STORAGE_NAND:
	130	if (location->ubivol != NULL)
	131	res = fs_set_blk_dev("ubi", NULL, FS_TYPE_UBIFS);
	132	else
	133	res = -ENODEV;
	134	break;
870dd309 NK	135	default:
	136	printf("Error: unsupported location storage.\n");
	137	return -ENODEV;
	138	}
	139
	140	if (res)
	141	printf("Error: could not access storage.\n");
	142
	143	return res;
	144	}
	145
9bb4e947 NK	146	#ifdef CONFIG_USB_STORAGE
	147	static int splash_init_usb(void)
	148	{
	149	int err;
	150
	151	err = usb_init();
	152	if (err)
	153	return err;
	154
d7b60fbf AB	155	#ifndef CONFIG_DM_USB
	156	err = usb_stor_scan(1) < 0 ? -ENODEV : 0;
	157	#endif
	158
	159	return err;
9bb4e947 NK	160	}
	161	#else
	162	static inline int splash_init_usb(void)
	163	{
	164	printf("Cannot load splash image: no USB support\n");
	165	return -ENOSYS;
	166	}
	167	#endif
	168
10e40d54	169	#ifdef CONFIG_SATA
50c2d2e1 NK	170	static int splash_init_sata(void)
50c2d2e1 NK	171	{
f19f1ecb	172	return sata_probe(0);
50c2d2e1 NK	173	}
	174	#else
	175	static inline int splash_init_sata(void)
	176	{
	177	printf("Cannot load splash image: no SATA support\n");
	178	return -ENOSYS;
	179	}
	180	#endif
	181
1cb075c6 EM	182	#ifdef CONFIG_CMD_UBIFS
	183	static int splash_mount_ubifs(struct splash_location *location)
	184	{
	185	int res;
	186	char cmd[32];
	187
	188	sprintf(cmd, "ubi part %s", location->mtdpart);
	189	res = run_command(cmd, 0);
	190	if (res)
	191	return res;
	192
	193	sprintf(cmd, "ubifsmount %s", location->ubivol);
	194	res = run_command(cmd, 0);
	195
	196	return res;
	197	}
	198
	199	static inline int splash_umount_ubifs(void)
	200	{
	201	return run_command("ubifsumount", 0);
	202	}
	203	#else
	204	static inline int splash_mount_ubifs(struct splash_location *location)
	205	{
	206	printf("Cannot load splash image: no UBIFS support\n");
	207	return -ENOSYS;
	208	}
	209
	210	static inline int splash_umount_ubifs(void)
	211	{
	212	printf("Cannot unmount UBIFS: no UBIFS support\n");
	213	return -ENOSYS;
	214	}
	215	#endif
	216
870dd309 NK	217	#define SPLASH_SOURCE_DEFAULT_FILE_NAME "splash.bmp"
	218
	219	static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr)
	220	{
9bb4e947	221	int res = 0;
870dd309	222	loff_t bmp_size;
3cc6e707	223	loff_t actread;
870dd309 NK	224	char *splash_file;
870dd309 NK	225
00caae6d	226	splash_file = env_get("splashfile");
870dd309 NK	227	if (!splash_file)
	228	splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;
	229
9bb4e947 NK	230	if (location->storage == SPLASH_STORAGE_USB)
	231	res = splash_init_usb();
	232
50c2d2e1 NK	233	if (location->storage == SPLASH_STORAGE_SATA)
	234	res = splash_init_sata();
	235
1cb075c6 EM	236	if (location->ubivol != NULL)
	237	res = splash_mount_ubifs(location);
	238
9bb4e947 NK	239	if (res)
	240	return res;
	241
870dd309 NK	242	res = splash_select_fs_dev(location);
870dd309 NK	243	if (res)
1cb075c6	244	goto out;
870dd309 NK	245
	246	res = fs_size(splash_file, &bmp_size);
	247	if (res) {
	248	printf("Error (%d): cannot determine file size\n", res);
1cb075c6	249	goto out;
870dd309 NK	250	}
	251
	252	if (bmp_load_addr + bmp_size >= gd->start_addr_sp) {
	253	printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
1cb075c6 EM	254	res = -EFAULT;
1cb075c6 EM	255	goto out;
870dd309 NK	256	}
	257
	258	splash_select_fs_dev(location);
3cc6e707	259	res = fs_read(splash_file, bmp_load_addr, 0, 0, &actread);
1cb075c6 EM	260
	261	out:
	262	if (location->ubivol != NULL)
	263	splash_umount_ubifs();
	264
	265	return res;
870dd309 NK	266	}
870dd309 NK	267
fd29dd55 NK	268	/**
	269	* select_splash_location - return the splash location based on board support
	270	* and env variable "splashsource".
	271	*
	272	* @locations: An array of supported splash locations.
	273	* @size: Size of splash_locations array.
	274	*
	275	* @return: If a null set of splash locations is given, or
	276	* splashsource env variable is set to unsupported value
	277	* return NULL.
	278	* If splashsource env variable is not defined
	279	* return the first entry in splash_locations as default.
	280	* If splashsource env variable contains a supported value
	281	* return the location selected by splashsource.
	282	*/
	283	static struct splash_location *select_splash_location(
	284	struct splash_location *locations, uint size)
	285	{
	286	int i;
	287	char *env_splashsource;
	288
	289	if (!locations \|\| size == 0)
	290	return NULL;
	291
00caae6d	292	env_splashsource = env_get("splashsource");
fd29dd55 NK	293	if (env_splashsource == NULL)
	294	return &locations[0];
	295
	296	for (i = 0; i < size; i++) {
	297	if (!strcmp(locations[i].name, env_splashsource))
	298	return &locations[i];
	299	}
	300
	301	printf("splashsource env variable set to unsupported value\n");
	302	return NULL;
	303	}
	304
db1b79b8	305	#ifdef CONFIG_FIT
	306	static int splash_load_fit(struct splash_location *location, u32 bmp_load_addr)
	307	{
	308	int res;
	309	int node_offset;
3d92f317	310	const char *splash_file;
d5006836 LR	311	const void *internal_splash_data;
	312	size_t internal_splash_size;
	313	int external_splash_addr;
	314	int external_splash_size;
	315	bool is_splash_external = false;
db1b79b8	316	struct image_header *img_header;
	317	const u32 *fit_header;
	318	u32 fit_size;
	319	const size_t header_size = sizeof(struct image_header);
	320
	321	/* Read in image header */
	322	res = splash_storage_read_raw(location, bmp_load_addr, header_size);
	323	if (res < 0)
	324	return res;
	325
	326	img_header = (struct image_header *)bmp_load_addr;
a7126edc NM	327	if (image_get_magic(img_header) != FDT_MAGIC) {
	328	printf("Could not find FDT magic\n");
	329	return -EINVAL;
	330	}
	331
db1b79b8	332	fit_size = fdt_totalsize(img_header);
	333
	334	/* Read in entire FIT */
	335	fit_header = (const u32 *)(bmp_load_addr + header_size);
	336	res = splash_storage_read_raw(location, (u32)fit_header, fit_size);
	337	if (res < 0)
	338	return res;
	339
c5819701 SG	340	res = fit_check_format(fit_header, IMAGE_SIZE_INVAL);
c5819701 SG	341	if (res) {
db1b79b8	342	debug("Could not find valid FIT image\n");
c5819701	343	return res;
db1b79b8	344	}
db1b79b8	345
3d92f317 LR	346	/* Get the splash image node */
	347	splash_file = env_get("splashfile");
	348	if (!splash_file)
	349	splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;
	350
	351	node_offset = fit_image_get_node(fit_header, splash_file);
db1b79b8	352	if (node_offset < 0) {
db1b79b8	353	debug("Could not find splash image '%s' in FIT\n",
3d92f317	354	splash_file);
db1b79b8	355	return -ENOENT;
	356	}
	357
d5006836 LR	358	/* Extract the splash data from FIT */
	359	/* 1. Test if splash is in FIT internal data. */
	360	if (!fit_image_get_data(fit_header, node_offset, &internal_splash_data, &internal_splash_size))
	361	memmove((void *)bmp_load_addr, internal_splash_data, internal_splash_size);
	362	/* 2. Test if splash is in FIT external data with fixed position. */
	363	else if (!fit_image_get_data_position(fit_header, node_offset, &external_splash_addr))
	364	is_splash_external = true;
	365	/* 3. Test if splash is in FIT external data with offset. */
	366	else if (!fit_image_get_data_offset(fit_header, node_offset, &external_splash_addr)) {
	367	/* Align data offset to 4-byte boundary */
	368	fit_size = ALIGN(fdt_totalsize(fit_header), 4);
	369	/* External splash offset means the offset by end of FIT header */
	370	external_splash_addr += location->offset + fit_size;
	371	is_splash_external = true;
	372	} else {
	373	printf("Failed to get splash image from FIT\n");
	374	return -ENODATA;
db1b79b8	375	}
db1b79b8	376
d5006836 LR	377	if (is_splash_external) {
	378	res = fit_image_get_data_size(fit_header, node_offset, &external_splash_size);
	379	if (res < 0) {
	380	printf("Failed to get size of splash image (err=%d)\n", res);
	381	return res;
	382	}
	383
	384	/* Read in the splash data */
	385	location->offset = external_splash_addr;
	386	res = splash_storage_read_raw(location, bmp_load_addr, external_splash_size);
	387	if (res < 0)
	388	return res;
db1b79b8	389	}
db1b79b8	390
db1b79b8	391	return 0;
	392	}
	393	#endif /* CONFIG_FIT */
	394
f82eb2fa NK	395	/**
	396	* splash_source_load - load splash image from a supported location.
	397	*
	398	* Select a splash image location based on the value of splashsource environment
	399	* variable and the board supported splash source locations, and load a
	400	* splashimage to the address pointed to by splashimage environment variable.
	401	*
	402	* @locations: An array of supported splash locations.
	403	* @size: Size of splash_locations array.
	404	*
	405	* @return: 0 on success, negative value on failure.
	406	*/
	407	int splash_source_load(struct splash_location *locations, uint size)
f4a40f05	408	{
fd29dd55	409	struct splash_location *splash_location;
f4a40f05 IG	410	char *env_splashimage_value;
	411	u32 bmp_load_addr;
	412
00caae6d	413	env_splashimage_value = env_get("splashimage");
f4a40f05	414	if (env_splashimage_value == NULL)
6947e3f5	415	return -ENOENT;
f4a40f05	416
7e5f460e	417	bmp_load_addr = hextoul(env_splashimage_value, 0);
f4a40f05 IG	418	if (bmp_load_addr == 0) {
f4a40f05 IG	419	printf("Error: bad splashimage address specified\n");
6947e3f5	420	return -EFAULT;
f4a40f05 IG	421	}
f4a40f05 IG	422
fd29dd55 NK	423	splash_location = select_splash_location(locations, size);
	424	if (!splash_location)
	425	return -EINVAL;
	426
3b593f90	427	if (splash_location->flags == SPLASH_STORAGE_RAW)
870dd309	428	return splash_load_raw(splash_location, bmp_load_addr);
3b593f90	429	else if (splash_location->flags == SPLASH_STORAGE_FS)
870dd309	430	return splash_load_fs(splash_location, bmp_load_addr);
db1b79b8	431	#ifdef CONFIG_FIT
	432	else if (splash_location->flags == SPLASH_STORAGE_FIT)
	433	return splash_load_fit(splash_location, bmp_load_addr);
	434	#endif
870dd309	435	return -EINVAL;
f4a40f05	436	}