[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>

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

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