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>
17 #include <spi_flash.h>
21 DECLARE_GLOBAL_DATA_PTR;
23 #ifdef CONFIG_SPI_FLASH
24 static struct spi_flash *sf;
25 static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
28 sf = spi_flash_probe(CONFIG_SF_DEFAULT_BUS,
30 CONFIG_SF_DEFAULT_SPEED,
31 CONFIG_SF_DEFAULT_MODE);
36 return spi_flash_read(sf, offset, read_size, (void *)bmp_load_addr);
39 static int splash_sf_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
41 debug("%s: sf support not available\n", __func__);
46 #ifdef CONFIG_CMD_NAND
47 static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
49 return nand_read_skip_bad(nand_info[nand_curr_device], offset,
51 nand_info[nand_curr_device]->size,
52 (u_char *)bmp_load_addr);
55 static int splash_nand_read_raw(u32 bmp_load_addr, int offset, size_t read_size)
57 debug("%s: nand support not available\n", __func__);
62 static int splash_storage_read_raw(struct splash_location *location,
63 u32 bmp_load_addr, size_t read_size)
70 offset = location->offset;
71 switch (location->storage) {
72 case SPLASH_STORAGE_NAND:
73 return splash_nand_read_raw(bmp_load_addr, offset, read_size);
74 case SPLASH_STORAGE_SF:
75 return splash_sf_read_raw(bmp_load_addr, offset, read_size);
77 printf("Unknown splash location\n");
83 static int splash_load_raw(struct splash_location *location, u32 bmp_load_addr)
85 struct bmp_header *bmp_hdr;
87 size_t bmp_size, bmp_header_size = sizeof(struct bmp_header);
89 if (bmp_load_addr + bmp_header_size >= gd->start_addr_sp)
90 goto splash_address_too_high;
92 res = splash_storage_read_raw(location, bmp_load_addr, bmp_header_size);
96 bmp_hdr = (struct bmp_header *)bmp_load_addr;
97 bmp_size = le32_to_cpu(bmp_hdr->file_size);
99 if (bmp_load_addr + bmp_size >= gd->start_addr_sp)
100 goto splash_address_too_high;
102 return splash_storage_read_raw(location, bmp_load_addr, bmp_size);
104 splash_address_too_high:
105 printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
110 static int splash_select_fs_dev(struct splash_location *location)
114 switch (location->storage) {
115 case SPLASH_STORAGE_MMC:
116 res = fs_set_blk_dev("mmc", location->devpart, FS_TYPE_ANY);
118 case SPLASH_STORAGE_USB:
119 res = fs_set_blk_dev("usb", location->devpart, FS_TYPE_ANY);
121 case SPLASH_STORAGE_SATA:
122 res = fs_set_blk_dev("sata", location->devpart, FS_TYPE_ANY);
124 case SPLASH_STORAGE_NAND:
125 if (location->ubivol != NULL)
126 res = fs_set_blk_dev("ubi", NULL, FS_TYPE_UBIFS);
131 printf("Error: unsupported location storage.\n");
136 printf("Error: could not access storage.\n");
141 #ifdef CONFIG_USB_STORAGE
142 static int splash_init_usb(void)
150 #ifndef CONFIG_DM_USB
151 err = usb_stor_scan(1) < 0 ? -ENODEV : 0;
157 static inline int splash_init_usb(void)
159 printf("Cannot load splash image: no USB support\n");
164 #ifdef CONFIG_CMD_SATA
165 static int splash_init_sata(void)
167 return sata_initialize();
170 static inline int splash_init_sata(void)
172 printf("Cannot load splash image: no SATA support\n");
177 #ifdef CONFIG_CMD_UBIFS
178 static int splash_mount_ubifs(struct splash_location *location)
183 sprintf(cmd, "ubi part %s", location->mtdpart);
184 res = run_command(cmd, 0);
188 sprintf(cmd, "ubifsmount %s", location->ubivol);
189 res = run_command(cmd, 0);
194 static inline int splash_umount_ubifs(void)
196 return run_command("ubifsumount", 0);
199 static inline int splash_mount_ubifs(struct splash_location *location)
201 printf("Cannot load splash image: no UBIFS support\n");
205 static inline int splash_umount_ubifs(void)
207 printf("Cannot unmount UBIFS: no UBIFS support\n");
212 #define SPLASH_SOURCE_DEFAULT_FILE_NAME "splash.bmp"
214 static int splash_load_fs(struct splash_location *location, u32 bmp_load_addr)
220 splash_file = getenv("splashfile");
222 splash_file = SPLASH_SOURCE_DEFAULT_FILE_NAME;
224 if (location->storage == SPLASH_STORAGE_USB)
225 res = splash_init_usb();
227 if (location->storage == SPLASH_STORAGE_SATA)
228 res = splash_init_sata();
230 if (location->ubivol != NULL)
231 res = splash_mount_ubifs(location);
236 res = splash_select_fs_dev(location);
240 res = fs_size(splash_file, &bmp_size);
242 printf("Error (%d): cannot determine file size\n", res);
246 if (bmp_load_addr + bmp_size >= gd->start_addr_sp) {
247 printf("Error: splashimage address too high. Data overwrites U-Boot and/or placed beyond DRAM boundaries.\n");
252 splash_select_fs_dev(location);
253 res = fs_read(splash_file, bmp_load_addr, 0, 0, NULL);
256 if (location->ubivol != NULL)
257 splash_umount_ubifs();
263 * select_splash_location - return the splash location based on board support
264 * and env variable "splashsource".
266 * @locations: An array of supported splash locations.
267 * @size: Size of splash_locations array.
269 * @return: If a null set of splash locations is given, or
270 * splashsource env variable is set to unsupported value
272 * If splashsource env variable is not defined
273 * return the first entry in splash_locations as default.
274 * If splashsource env variable contains a supported value
275 * return the location selected by splashsource.
277 static struct splash_location *select_splash_location(
278 struct splash_location *locations, uint size)
281 char *env_splashsource;
283 if (!locations || size == 0)
286 env_splashsource = getenv("splashsource");
287 if (env_splashsource == NULL)
288 return &locations[0];
290 for (i = 0; i < size; i++) {
291 if (!strcmp(locations[i].name, env_splashsource))
292 return &locations[i];
295 printf("splashsource env variable set to unsupported value\n");
300 * splash_source_load - load splash image from a supported location.
302 * Select a splash image location based on the value of splashsource environment
303 * variable and the board supported splash source locations, and load a
304 * splashimage to the address pointed to by splashimage environment variable.
306 * @locations: An array of supported splash locations.
307 * @size: Size of splash_locations array.
309 * @return: 0 on success, negative value on failure.
311 int splash_source_load(struct splash_location *locations, uint size)
313 struct splash_location *splash_location;
314 char *env_splashimage_value;
317 env_splashimage_value = getenv("splashimage");
318 if (env_splashimage_value == NULL)
321 bmp_load_addr = simple_strtoul(env_splashimage_value, 0, 16);
322 if (bmp_load_addr == 0) {
323 printf("Error: bad splashimage address specified\n");
327 splash_location = select_splash_location(locations, size);
328 if (!splash_location)
331 if (splash_location->flags & SPLASH_STORAGE_RAW)
332 return splash_load_raw(splash_location, bmp_load_addr);
333 else if (splash_location->flags & SPLASH_STORAGE_FS)
334 return splash_load_fs(splash_location, bmp_load_addr);