2 * (C) Copyright 2014 CompuLab, Ltd. <www.compulab.co.il>
4 * Authors: Igor Grinberg <grinberg@compulab.co.il>
6 * SPDX-License-Identifier: GPL-2.0+
10 #include <bmp_layout.h>
13 #include <fdt_support.h>
18 #include <spi_flash.h>
22 DECLARE_GLOBAL_DATA_PTR
;
24 #ifdef CONFIG_SPI_FLASH
25 static struct spi_flash
*sf
;
26 static int splash_sf_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
29 sf
= spi_flash_probe(CONFIG_SF_DEFAULT_BUS
,
31 CONFIG_SF_DEFAULT_SPEED
,
32 CONFIG_SF_DEFAULT_MODE
);
37 return spi_flash_read(sf
, offset
, read_size
, (void *)bmp_load_addr
);
40 static int splash_sf_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
42 debug("%s: sf support not available\n", __func__
);
47 #ifdef CONFIG_CMD_NAND
48 static int splash_nand_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
50 return nand_read_skip_bad(nand_info
[nand_curr_device
], offset
,
52 nand_info
[nand_curr_device
]->size
,
53 (u_char
*)bmp_load_addr
);
56 static int splash_nand_read_raw(u32 bmp_load_addr
, int offset
, size_t read_size
)
58 debug("%s: nand support not available\n", __func__
);
63 static int splash_storage_read_raw(struct splash_location
*location
,
64 u32 bmp_load_addr
, size_t read_size
)
71 offset
= location
->offset
;
72 switch (location
->storage
) {
73 case SPLASH_STORAGE_NAND
:
74 return splash_nand_read_raw(bmp_load_addr
, offset
, read_size
);
75 case SPLASH_STORAGE_SF
:
76 return splash_sf_read_raw(bmp_load_addr
, offset
, read_size
);
78 printf("Unknown splash location\n");
84 static int splash_load_raw(struct splash_location
*location
, u32 bmp_load_addr
)
86 struct bmp_header
*bmp_hdr
;
88 size_t bmp_size
, bmp_header_size
= sizeof(struct bmp_header
);
90 if (bmp_load_addr
+ bmp_header_size
>= gd
->start_addr_sp
)
91 goto splash_address_too_high
;
93 res
= splash_storage_read_raw(location
, bmp_load_addr
, bmp_header_size
);
97 bmp_hdr
= (struct bmp_header
*)bmp_load_addr
;
98 bmp_size
= le32_to_cpu(bmp_hdr
->file_size
);
100 if (bmp_load_addr
+ bmp_size
>= gd
->start_addr_sp
)
101 goto splash_address_too_high
;
103 return splash_storage_read_raw(location
, bmp_load_addr
, bmp_size
);
105 splash_address_too_high
:
106 printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
111 static int splash_select_fs_dev(struct splash_location
*location
)
115 switch (location
->storage
) {
116 case SPLASH_STORAGE_MMC
:
117 res
= fs_set_blk_dev("mmc", location
->devpart
, FS_TYPE_ANY
);
119 case SPLASH_STORAGE_USB
:
120 res
= fs_set_blk_dev("usb", location
->devpart
, FS_TYPE_ANY
);
122 case SPLASH_STORAGE_SATA
:
123 res
= fs_set_blk_dev("sata", location
->devpart
, FS_TYPE_ANY
);
125 case SPLASH_STORAGE_NAND
:
126 if (location
->ubivol
!= NULL
)
127 res
= fs_set_blk_dev("ubi", NULL
, FS_TYPE_UBIFS
);
132 printf("Error: unsupported location storage.\n");
137 printf("Error: could not access storage.\n");
142 #ifdef CONFIG_USB_STORAGE
143 static int splash_init_usb(void)
151 #ifndef CONFIG_DM_USB
152 err
= usb_stor_scan(1) < 0 ? -ENODEV
: 0;
158 static inline int splash_init_usb(void)
160 printf("Cannot load splash image: no USB support\n");
165 #ifdef CONFIG_CMD_SATA
166 static int splash_init_sata(void)
168 return sata_initialize();
171 static inline int splash_init_sata(void)
173 printf("Cannot load splash image: no SATA support\n");
178 #ifdef CONFIG_CMD_UBIFS
179 static int splash_mount_ubifs(struct splash_location
*location
)
184 sprintf(cmd
, "ubi part %s", location
->mtdpart
);
185 res
= run_command(cmd
, 0);
189 sprintf(cmd
, "ubifsmount %s", location
->ubivol
);
190 res
= run_command(cmd
, 0);
195 static inline int splash_umount_ubifs(void)
197 return run_command("ubifsumount", 0);
200 static inline int splash_mount_ubifs(struct splash_location
*location
)
202 printf("Cannot load splash image: no UBIFS support\n");
206 static inline int splash_umount_ubifs(void)
208 printf("Cannot unmount UBIFS: no UBIFS support\n");
213 #define SPLASH_SOURCE_DEFAULT_FILE_NAME "splash.bmp"
215 static int splash_load_fs(struct splash_location
*location
, u32 bmp_load_addr
)
221 splash_file
= getenv("splashfile");
223 splash_file
= SPLASH_SOURCE_DEFAULT_FILE_NAME
;
225 if (location
->storage
== SPLASH_STORAGE_USB
)
226 res
= splash_init_usb();
228 if (location
->storage
== SPLASH_STORAGE_SATA
)
229 res
= splash_init_sata();
231 if (location
->ubivol
!= NULL
)
232 res
= splash_mount_ubifs(location
);
237 res
= splash_select_fs_dev(location
);
241 res
= fs_size(splash_file
, &bmp_size
);
243 printf("Error (%d): cannot determine file size\n", res
);
247 if (bmp_load_addr
+ bmp_size
>= gd
->start_addr_sp
) {
248 printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
253 splash_select_fs_dev(location
);
254 res
= fs_read(splash_file
, bmp_load_addr
, 0, 0, NULL
);
257 if (location
->ubivol
!= NULL
)
258 splash_umount_ubifs();
264 * select_splash_location - return the splash location based on board support
265 * and env variable "splashsource".
267 * @locations: An array of supported splash locations.
268 * @size: Size of splash_locations array.
270 * @return: If a null set of splash locations is given, or
271 * splashsource env variable is set to unsupported value
273 * If splashsource env variable is not defined
274 * return the first entry in splash_locations as default.
275 * If splashsource env variable contains a supported value
276 * return the location selected by splashsource.
278 static struct splash_location
*select_splash_location(
279 struct splash_location
*locations
, uint size
)
282 char *env_splashsource
;
284 if (!locations
|| size
== 0)
287 env_splashsource
= getenv("splashsource");
288 if (env_splashsource
== NULL
)
289 return &locations
[0];
291 for (i
= 0; i
< size
; i
++) {
292 if (!strcmp(locations
[i
].name
, env_splashsource
))
293 return &locations
[i
];
296 printf("splashsource env variable set to unsupported value\n");
301 static int splash_load_fit(struct splash_location
*location
, u32 bmp_load_addr
)
307 struct image_header
*img_header
;
308 const u32
*fit_header
;
310 const size_t header_size
= sizeof(struct image_header
);
312 /* Read in image header */
313 res
= splash_storage_read_raw(location
, bmp_load_addr
, header_size
);
317 img_header
= (struct image_header
*)bmp_load_addr
;
318 fit_size
= fdt_totalsize(img_header
);
320 /* Read in entire FIT */
321 fit_header
= (const u32
*)(bmp_load_addr
+ header_size
);
322 res
= splash_storage_read_raw(location
, (u32
)fit_header
, fit_size
);
326 res
= fit_check_format(fit_header
);
328 debug("Could not find valid FIT image\n");
332 node_offset
= fit_image_get_node(fit_header
, location
->name
);
333 if (node_offset
< 0) {
334 debug("Could not find splash image '%s' in FIT\n",
339 res
= fit_image_get_data_offset(fit_header
, node_offset
,
342 printf("Failed to load splash image (err=%d)\n", res
);
346 res
= fit_image_get_data_size(fit_header
, node_offset
, &splash_size
);
348 printf("Failed to load splash image (err=%d)\n", res
);
352 /* Align data offset to 4-byte boundrary */
353 fit_size
= fdt_totalsize(fit_header
);
354 fit_size
= (fit_size
+ 3) & ~3;
356 /* Read in the splash data */
357 location
->offset
= (location
->offset
+ fit_size
+ splash_offset
);
358 res
= splash_storage_read_raw(location
, bmp_load_addr
, splash_size
);
364 #endif /* CONFIG_FIT */
367 * splash_source_load - load splash image from a supported location.
369 * Select a splash image location based on the value of splashsource environment
370 * variable and the board supported splash source locations, and load a
371 * splashimage to the address pointed to by splashimage environment variable.
373 * @locations: An array of supported splash locations.
374 * @size: Size of splash_locations array.
376 * @return: 0 on success, negative value on failure.
378 int splash_source_load(struct splash_location
*locations
, uint size
)
380 struct splash_location
*splash_location
;
381 char *env_splashimage_value
;
384 env_splashimage_value
= getenv("splashimage");
385 if (env_splashimage_value
== NULL
)
388 bmp_load_addr
= simple_strtoul(env_splashimage_value
, 0, 16);
389 if (bmp_load_addr
== 0) {
390 printf("Error: bad splashimage address specified\n");
394 splash_location
= select_splash_location(locations
, size
);
395 if (!splash_location
)
398 if (splash_location
->flags
== SPLASH_STORAGE_RAW
)
399 return splash_load_raw(splash_location
, bmp_load_addr
);
400 else if (splash_location
->flags
== SPLASH_STORAGE_FS
)
401 return splash_load_fs(splash_location
, bmp_load_addr
);
403 else if (splash_location
->flags
== SPLASH_STORAGE_FIT
)
404 return splash_load_fit(splash_location
, bmp_load_addr
);